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Imlay TL, Breau C, Dauphin GJR, Chaput G, April J, Douglas S, Hogan JD, McWilliam S, Notte D, Robertson MJ, Taylor A, Underhill K, Weir LK. Body length changes for Atlantic salmon ( Salmo salar) over five decades exhibit weak spatial synchrony over a broad latitudinal gradient. Ecol Evol 2024; 14:e11538. [PMID: 38859887 PMCID: PMC11163019 DOI: 10.1002/ece3.11538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 05/18/2024] [Accepted: 05/23/2024] [Indexed: 06/12/2024] Open
Abstract
Understanding the factors that drive spatial synchrony among populations or species is important for management and recovery of populations. The range-wide declines in Atlantic salmon (Salmo salar) populations may be the result of broad-scale changes in the marine environment. Salmon undergo rapid growth in the ocean; therefore changing marine conditions may affect body size and fecundity estimates used to evaluate whether stock reference points are met. Using a dataset that spanned five decades, 172,268 individuals, and 19 rivers throughout Eastern Canada, we investigated the occurrence of spatial synchrony in changes in the body size of returning wild adult Atlantic salmon. Body size was then related to conditions in the marine environment (i.e., climate indices, thermal habitat availability, food availability, density-dependence, and fisheries exploitation rates) that may act on all populations during the ocean feeding phase of their life cycle. Body size increased during the 1980s and 1990s for salmon that returned to rivers after one (1SW) or two winters at sea (2SW); however, significant changes were only observed for 1SW and/or 2SW in some mid-latitude and northern rivers (10/13 rivers with 10 of more years of data during these decades) and not in southern rivers (0/2), suggesting weak spatial synchrony across Eastern Canada. For 1SW salmon in nine rivers, body size was longer when fisheries exploitation rates were lower. For 2SW salmon, body size was longer when suitable thermal habitat was more abundant (significant for 3/8 rivers) and the Atlantic Multidecadal Oscillation was higher (i.e., warmer sea surface temperatures; significant for 4/8 rivers). Overall, the weak spatial synchrony and variable effects of covariates on body size across rivers suggest that changes in Atlantic salmon body size may not be solely driven by shared conditions in the marine environment. Regardless, body size changes may have consequences for population management and recovery through the relationship between size and fecundity.
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Affiliation(s)
- Tara L. Imlay
- Fisheries and Oceans CanadaMonctonNew BrunswickCanada
| | - Cindy Breau
- Fisheries and Oceans CanadaMonctonNew BrunswickCanada
| | | | - Gérald Chaput
- Fisheries and Oceans CanadaMonctonNew BrunswickCanada
| | - Julien April
- Ministère de l'Environnement, de la Lutte contre les changements climatiques, de la Faune et des ParcsQuébecQuébecCanada
| | - Scott Douglas
- Fisheries and Oceans CanadaMonctonNew BrunswickCanada
| | - J. Derek Hogan
- Fisheries and Oceans CanadaFrench VillageNew BrunswickCanada
| | | | - Daniela Notte
- Fisheries and Oceans CanadaDartmouthNova ScotiaCanada
| | | | - Andrew Taylor
- Fisheries and Oceans CanadaDartmouthNova ScotiaCanada
| | | | - Laura K. Weir
- Department of BiologySaint Mary's UniversityHalifaxNova ScotiaCanada
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Sihombing RI, Mondal S, Ray A, Lee MA, Lu QH. Recent global climate change effects: A study of Eleutheronema rhadinum in Chang-Yuen Ridge, Taiwan. MARINE ENVIRONMENTAL RESEARCH 2024; 195:106352. [PMID: 38232434 DOI: 10.1016/j.marenvres.2024.106352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 01/19/2024]
Abstract
This study investigated the potential effects of climatic oscillations on CPUE of Eleutheronema rhadinum (East Asian fourfinger threadfin), a commercially valuable fish species in East Asia. Fishery data from Chang-Yuen Ridge between 2015 and 2022 was analyzed in conjunction with four climatic oscillation indices that were lagged by up to 5 years. The results revealed a fluctuating CPUE associated with the 1-year-lagged Ocean Niño Index (ONI lag 1) and 1-year-lagged Southern Oscillation Index (SOI lag 1) suggesting a potential effect between climatic oscillation indices and East Asian fourfinger threadfin CPUE. These findings can provide insights into the association between East Asian fourfinger threadfin abundance and climatic oscillations in Chang-Yuen Ridge, Taiwan; the insights are valuable for fishery management amidst changing climate conditions.
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Affiliation(s)
- Riah Irawati Sihombing
- Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung City, Taiwan
| | - Sandipan Mondal
- Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung City, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City, Taiwan
| | - Aratrika Ray
- Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung City, Taiwan
| | - Ming-An Lee
- Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung City, Taiwan; Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung City, Taiwan; Doctoral Degree Program in Ocean Resource and Environmental Changes, National Taiwan Ocean University, Keelung City, Taiwan.
| | - Quang-Huy Lu
- Environmental Biology and Fisheries Science, National Taiwan Ocean University, Keelung City, Taiwan
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Gayo EM, Lima M, Gurruchaga A, Estay SA, Santoro CM, Latorre C, McRostie V. Towards understanding human-environment feedback loops: the Atacama Desert case. Philos Trans R Soc Lond B Biol Sci 2024; 379:20220253. [PMID: 37952616 PMCID: PMC10645077 DOI: 10.1098/rstb.2022.0253] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 08/15/2023] [Indexed: 11/14/2023] Open
Abstract
The overall trajectory for the human-environment interaction has been punctuated by demographic boom-and-bust cycles, phases of growth/overshooting as well as of expansion/contraction in productivity. Although this pattern has been explained in terms of an interplay between population growth, social upscaling, ecosystem engineering and climate variability, the evoked demographic-resource-complexity mechanisms have not been empirically tested. By integrating proxy data for population sizes, palaeoclimate and internal societal factors into empirical modelling approaches from the population dynamic theory, we evaluated how endogenous (population sizes, warfare and social upscaling) and exogenous (climate) variables module the dynamic in past agrarian societies. We focused on the inland Atacama Desert, where populations developed agriculture activities by engineering arid and semi-arid landscapes during the last 2000 years. Our modelling approach indicates that these populations experienced a boom-and-bust dynamic over the last millennia, which was coupled to structure feedback between population sizes, hydroclimate, social upscaling, warfare and ecosystem engineering. Thus, the human-environment loop appears closely linked with cooperation, competition, limiting resources and the ability of problem-solving. This article is part of the theme issue 'Evolution and sustainability: gathering the strands for an Anthropocene synthesis'.
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Affiliation(s)
- Eugenia M. Gayo
- Departamento de Geografía, Universidad de Chile, Santiago 8331051, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
- Center for Climate and Resilience Research (CR)2, Santiago 8370449, Chile
- Institute of Ecology and Biodiversity (IEB), Santiago 7750000, Chile
| | - Mauricio Lima
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
- Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Andone Gurruchaga
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
| | - Sergio A. Estay
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
- Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Calogero M. Santoro
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica 1001236, Chile
| | - Claudio Latorre
- Institute of Ecology and Biodiversity (IEB), Santiago 7750000, Chile
- Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
- Centro PUC Desierto de Atacama (CDA), Santiago 7821093, Chile
| | - Virginia McRostie
- Escuela de Antropología, Pontificia Universidad Católica de Chile, Santiago 7821093, Chile
- Centro PUC Desierto de Atacama (CDA), Santiago 7821093, Chile
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4
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Larsen S, Joyce F, Vaughan IP, Durance I, Walter JA, Ormerod SJ. Climatic effects on the synchrony and stability of temperate headwater invertebrates over four decades. GLOBAL CHANGE BIOLOGY 2024; 30:e17017. [PMID: 37933478 DOI: 10.1111/gcb.17017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/28/2023] [Accepted: 10/20/2023] [Indexed: 11/08/2023]
Abstract
Important clues about the ecological effects of climate change can arise from understanding the influence of other Earth-system processes on ecosystem dynamics but few studies span the inter-decadal timescales required. We, therefore, examined how variation in annual weather patterns associated with the North Atlantic Oscillation (NAO) over four decades was linked to synchrony and stability in a metacommunity of stream invertebrates across multiple, contrasting headwaters in central Wales (UK). Prolonged warmer and wetter conditions during positive NAO winters appeared to synchronize variations in population and community composition among and within streams thereby reducing stability across levels of ecological organization. This climatically mediated synchronization occurred in all streams irrespective of acid-base status and land use, but was weaker where invertebrate communities were more functionally diverse. Wavelet linear models indicated that variation in the NAO explained up to 50% of overall synchrony in species abundances at a timescale of 4-6 years. The NAO appeared to affect ecological dynamics through local variations in temperature, precipitation and discharge, but increasing hydrochemical variability within sites during wetter winters might have contributed. Our findings illustrate how large-scale climatic fluctuations generated over the North Atlantic can affect population persistence and dynamics in inland freshwater ecosystems in ways that transcend local catchment character. Protecting and restoring functional diversity in stream communities might increase their stability against warmer, wetter conditions that are analogues of ongoing climate change. Catchment management could also dampen impacts and provide options for climate change adaptation.
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Affiliation(s)
- Stefano Larsen
- Research and Innovation Centre, Fondazione Edmund Mach, San Michele all' Adige, Italy
| | - Fiona Joyce
- Water Research Institute, Cardiff School of Biosciences, Cardiff University, Cardiff, UK
| | - Ian P Vaughan
- Water Research Institute, Cardiff School of Biosciences, Cardiff University, Cardiff, UK
| | - Isabelle Durance
- Water Research Institute, Cardiff School of Biosciences, Cardiff University, Cardiff, UK
| | - Jonathan A Walter
- Center for Watershed Sciences, University of California, Davis, California, USA
- Department of Environmental Sciences, University of Virginia, Charlottesville, Virginia, USA
| | - Steve J Ormerod
- Water Research Institute, Cardiff School of Biosciences, Cardiff University, Cardiff, UK
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5
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Lima M, Gayó EM, Gurruchaga A, Estay SA, Santoro CM. 1000 years of population, warfare, and climate change in pre-Columbian societies of the Central Andes. PLoS One 2023; 18:e0278730. [PMID: 38032927 PMCID: PMC10688747 DOI: 10.1371/journal.pone.0278730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 04/26/2023] [Indexed: 12/02/2023] Open
Abstract
Different Andean societies underwent processes of expansion and collapse during propitious or adverse climate conditions, resource boost or depletion along with population variations. Previous studies have emphasized that demographic collapses of polities in the Central Andes Area were triggered by warfare and the negative impacts of fluctuating climate (droughts) on crop productivity. Nevertheless, the interactions between climatic variability, demography and warfare have been less thoroughly evaluated. We develop population dynamic models to test feedback relationships between population growth, climate change and warfare in the Central Andes, where considerable regional hydroclimate variations have occurred over a millennium. Through population models, we found out that the rise and demise of social polities in the northern coast of the Central Andes appear to be a consequence of climate change. In contrast, for the highlands of Peru and the Titicaca basin, population models suggest that warfare intensity has a negative effect on population growth rates.
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Affiliation(s)
- Mauricio Lima
- Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago, Chile
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Eugenia M. Gayó
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Geografía, Universidad de Chile, Santiago, Chile
- Center for Climate and Resilience Research (CR)2, Santiago, Chile
- Institute of Ecology and Biodiversity (IEB), Santiago, Chile
| | - Andone Gurruchaga
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sergio A. Estay
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Santiago, Chile
- Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia, Chile
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6
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Goto D. Transient demographic dynamics of recovering fish populations shaped by past climate variability, harvest, and management. GLOBAL CHANGE BIOLOGY 2023; 29:6018-6039. [PMID: 37655646 DOI: 10.1111/gcb.16922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 07/16/2023] [Accepted: 07/30/2023] [Indexed: 09/02/2023]
Abstract
Large-scale commercial harvesting and climate-induced fluctuations in ocean properties shape the dynamics of marine populations as interdependent drivers at varied timescales. Persistent selective removals of larger, older members of a population can distort its demographic structure, eroding resilience to fluctuations in habitat conditions and thus amplifying volatility in transient dynamics. Many historically depleted marine fish stocks have begun showing signs of recovery in recent decades following the implementation of stricter management measures. But these interventions coincide with accelerated changes in the oceans triggered by increasingly warmer, more variable climates. Applying multilevel models to annual estimates of demographic metrics of 38 stocks comprising 11 species across seven northeast Atlantic ecoregions, this study explores how time-varying local and regional climates contributed to the transient dynamics of recovering populations exposed to variable fishing pressures moderated by management actions. Analyses reveal that progressive reductions in fishing pressure and shifting climate conditions discontinuously shaped rebuilding patterns of the stocks through restorations of maternal demographic structure (reversing age truncation) and reproductive capacity. As the survival rate and demographic structure of reproductive fish improved, transient growth became less sensitive to variability in recruitment and juvenile survival and more to that in adult survival. As the biomass of reproductive fish rose, recruitment success also became increasingly regulated by density-dependent processes involving higher numbers of older fish. When reductions in fishing pressure were insufficient or delayed, however, stocks became further depleted, with more eroded demographic structures. Although warmer local climates in spawning seasons promoted recruitment success in some ecoregions, changing climates in recent decades began adversely affecting reproductive performances overall, amplifying sensitivities to recruitment variability. These shared patterns underscore the value of demographic transients in developing robust strategies for managing marine resources. Such strategies could form the foundation for effective applications of adaptive measures resilient to future environmental change.
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Affiliation(s)
- Daisuke Goto
- Institute of Marine Research, Bergen, Norway
- Department of Aquatic Resources, Swedish University of Agricultural Sciences, Drottningholm, Sweden
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7
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Fisher DN, Cheney BJ. Dolphin social phenotypes vary in response to food availability but not the North Atlantic Oscillation index. Proc Biol Sci 2023; 290:20231187. [PMID: 37817593 PMCID: PMC10565371 DOI: 10.1098/rspb.2023.1187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 09/18/2023] [Indexed: 10/12/2023] Open
Abstract
Social behaviours can allow individuals to flexibly respond to environmental change, potentially buffering adverse effects. However, individuals may respond differently to the same environmental stimulus, complicating predictions for population-level response to environmental change. Here, we show that bottlenose dolphins (Tursiops truncatus) alter their social behaviour at yearly and monthly scales in response to a proxy for food availability (salmon abundance) but do not respond to variation in a proxy for climate (the North Atlantic Oscillation index). There was also individual variation in plasticity for gregariousness and connectedness to distant parts of the social network, although these traits showed limited repeatability. By contrast, individuals showed consistent differences in clustering with their immediate social environment at the yearly scale but no individual variation in plasticity for this trait at either timescale. These results indicate that social behaviour in free-ranging cetaceans can be highly resource dependent with individuals increasing their connectedness over short timescales but possibly reducing their wider range of connection at longer timescales. Some social traits showed more individual variation in plasticity or mean behaviour than others, highlighting how predictions for the responses of populations to environmental variation must consider the type of individual variation present in the population.
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Affiliation(s)
- David N. Fisher
- School of Biological Sciences, University of Aberdeen, King's College, Aberdeen AB24 3FX, UK
| | - Barbara J. Cheney
- School of Biological Sciences, University of Aberdeen, Lighthouse Field Station, George Street, Cromarty IV11 8YL, UK
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8
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Cazelles B, Cazelles K, Tian H, Chavez M, Pascual M. Disentangling local and global climate drivers in the population dynamics of mosquito-borne infections. SCIENCE ADVANCES 2023; 9:eadf7202. [PMID: 37756402 PMCID: PMC10530079 DOI: 10.1126/sciadv.adf7202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 08/21/2023] [Indexed: 09/29/2023]
Abstract
Identifying climate drivers is essential to understand and predict epidemics of mosquito-borne infections whose population dynamics typically exhibit seasonality and multiannual cycles. Which climate covariates to consider varies across studies, from local factors such as temperature to remote drivers such as the El Niño-Southern Oscillation. With partial wavelet coherence, we present a systematic investigation of nonstationary associations between mosquito-borne disease incidence and a given climate factor while controlling for another. Analysis of almost 200 time series of dengue and malaria around the globe at different geographical scales shows a systematic effect of global climate drivers on interannual variability and of local ones on seasonality. This clear separation of time scales of action enhances detection of climate drivers and indicates those best suited for building early-warning systems.
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Affiliation(s)
- Bernard Cazelles
- UMMISCO, Sorbonne Université, Paris, France
- Eco-Evolution Mathématique, IBENS, CNRS UMR-8197, Ecole Normale Supérieure, Paris, France
| | - Kévin Cazelles
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
- inSileco Inc., 2-775 Avenue Monk, Québec, Québec, Canada
| | - Huaiyu Tian
- State Key Laboratory of Remote Sensing Science, Center for Global Change and Public Health, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
| | - Mario Chavez
- Hôpital de la Pitié-Salpêtrière, CNRS UMR-7225, Paris, France
| | - Mercedes Pascual
- Department of Ecology and Evolution, University of Chicago, Chicago, IL, USA
- The Santa Fe Institute, Santa Fe, NM, USA
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Sandvig EM, Quilodrán CS, Altamirano TA, Aguirre F, Barroso O, Rivero de Aguilar J, Schaub M, Kéry M, Vásquez RA, Rozzi R. Survival rates in the world's southernmost forest bird community. Ecol Evol 2023; 13:e10143. [PMID: 37351480 PMCID: PMC10282503 DOI: 10.1002/ece3.10143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 06/24/2023] Open
Abstract
The Magellanic sub-Antarctic Forest is home to the world's southernmost avian community and is the only Southern Hemisphere analogue to Northern Hemisphere temperate forests at this latitude. This region is considered among the few remaining pristine areas of the world, and shifts in environmental conditions are predominantly driven by climate variability. Thus, understanding climate-driven demographic processes is critical for addressing conservation issues in this system under future climate change scenarios. Here, we describe annual survival patterns and their association with climate variables using a 20-year mark-recapture data set of five forest bird species in the Cape Horn Biosphere Reserve. We develop a multispecies hierarchical survival model to jointly explore age-dependent survival probabilities at the community and species levels in a group of five forest passerines. At the community level, we assess the association of migratory behavior and body size with survival, and at the species level, we investigate the influence of local and regional climatic variables on temporal variations of survival. We found a positive effect of precipitation and a negative effect of El Niño Southern Oscillation on juvenile survival in the white-crested Elaenia and a consistent but uncertain negative effect of temperature on survival in juveniles and 80% of adults. We found only a weak association of climate variables with survival across species in the community and no temporal trends in survival for any of the species in either age class, highlighting apparent stability in these high austral latitude forests. Finally, our findings provide an important resource of survival probabilities, a necessary input for assessing potential impacts of global climate change in this unique region of the world.
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Affiliation(s)
- Erik M. Sandvig
- Cape Horn International CenterUniversidad de MagallanesPuerto WilliamsChile
- Centro Bahía Lomas, Facultad de CienciasUniversidad Santo TomásSantiagoChile
- Swiss Ornithological Institute (Vogelwarte)SempachSwitzerland
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Instituto de Ecología y Biodiversidad (IEB)Universidad de ChileSantiagoChile
| | - Claudio S. Quilodrán
- Cape Horn International CenterUniversidad de MagallanesPuerto WilliamsChile
- Department of Genetics and EvolutionUniversity of GenevaGenevaSwitzerland
| | - Tomás A. Altamirano
- Cape Horn International CenterUniversidad de MagallanesPuerto WilliamsChile
- Audubon Americas, National Audubon SocietySantiagoChile
- Center for Local Development (CEDEL), Villarrica CampusPontificia Universidad Católica de ChileVillarricaChile
| | - Francisco Aguirre
- Cape Horn International CenterUniversidad de MagallanesPuerto WilliamsChile
- Centro de Investigación Gaia Antártica (CIGA)Universidad de MagallanesPunta ArenasChile
| | - Omar Barroso
- Cape Horn International CenterUniversidad de MagallanesPuerto WilliamsChile
| | | | - Michael Schaub
- Swiss Ornithological Institute (Vogelwarte)SempachSwitzerland
| | - Marc Kéry
- Swiss Ornithological Institute (Vogelwarte)SempachSwitzerland
| | - Rodrigo A. Vásquez
- Cape Horn International CenterUniversidad de MagallanesPuerto WilliamsChile
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Instituto de Ecología y Biodiversidad (IEB)Universidad de ChileSantiagoChile
| | - Ricardo Rozzi
- Cape Horn International CenterUniversidad de MagallanesPuerto WilliamsChile
- Sub‐Antarctic Biocultural Conservation Program, Department of Philosophy and Religion and Department of Biological ScienciesUniversity of North TexasDentonTexasUSA
- Department of Biological SciencesUniversity of North TexasDentonTexasUSA
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10
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Estimating population dynamics trajectories of raptors from a multi-species hierarchical distance sampling model. ECOL INFORM 2023. [DOI: 10.1016/j.ecoinf.2023.102024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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11
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Canonne C, Bernard-Laurent A, Souchay G, Perrot C, Besnard A. Contrasted impacts of weather conditions in species sensitive to both survival and fecundity: A montane bird case study. Ecology 2023; 104:e3932. [PMID: 36448209 DOI: 10.1002/ecy.3932] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 09/16/2022] [Accepted: 10/18/2022] [Indexed: 12/05/2022]
Abstract
There is growing evidence that the Earth's climate is undergoing profound changes that are affecting biodiversity worldwide. This gives rise to the pressing need to develop robust predictions on how species will respond in order to inform conservation strategies and allow managers to adapt mitigation measures accordingly. While predictions have begun to emerge on how species at the extremes of the so-called slow-fast continuum might respond to climate change, empirical studies for species for which all demographic traits contribute relatively equally to population dynamics are lacking. Yet, climate change is expected to strongly affect them throughout their entire lifecycle. We built a 21-year integrated population model to characterize the population dynamics of the rock partridge (Alectoris graeca) in France, and tested the influence of nine weather covariates on demographic parameters. As predicted, both annual survival and breeding success were affected by weather covariates. Thick snow cover during winter was associated with low survival and small brood size the following breeding season. Brood size was higher with intermediate winter temperatures and snowmelt timing, positively correlated to breeding period temperature, but negatively correlated to temperature during the coldest fortnight and precipitation during the breeding period. Survival was positively correlated to winter temperature, but negatively to breeding period precipitation. Large-scale indices indicated that cold and wet winters were associated with small brood size the following breeding season but with high survival. Expected changes of weather conditions due to climate change are likely to impact demographic traits of the rock partridge both positively and negatively depending on the traits and on the affected weather variables. Future population dynamics will thus depend on the magnitude of these different impacts. Our study illustrates the difficulty to make strong predictions about how species with a population dynamic influenced by both survival and fecundity will respond to climate change.
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Affiliation(s)
- Coline Canonne
- CEFE, University of Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France.,DRAS OFB, French Biodiversity Agency, Juvignac, France
| | | | | | | | - Aurélien Besnard
- CEFE, University of Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France
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12
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Akhmetzyanov L, Sánchez-Salguero R, García-González I, Domínguez-Delmás M, Sass-Klaassen U. Blue is the fashion in Mediterranean pines: New drought signals from tree-ring density in southern Europe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:159291. [PMID: 36208747 DOI: 10.1016/j.scitotenv.2022.159291] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/16/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Long-term records of tree-ring width (TRW), latewood maximum density (MXD) and blue intensity (BI) measurements on conifers have been largely used to develop high-resolution temperature reconstructions in cool temperate forests. However, the potential of latewood blue intensity (LWBI), less commonly used earlywood blue intensity (EWBI), and delta (difference between EWBI and LWBI, dBI) blue intensity in Mediterranean tree species is still unexplored. Here we developed BI chronologies in moist-elevation limits of the most southwestern European distribution of Pinus nigra subsp. salzmanii Arnold. We tested whether BI variables derived from tree rings of black pine are better proxies than ring-width variables to reconstruct long-term changes in climatic factors and water availability. For this we applied correlations and regression analyses with daily and monthly climate data, a spatial and temporal drought index (Standardized Precipitation-Evapotranspiration Index-SPEI) and Vapour Pressure Deficit (VPD), as well as atmospheric circulation patterns: North Atlantic Oscillation (NAO), Southern Oscillation Index (SOI) and Western Mediterranean Oscillation (WeMO). We found a positive relation between black pine growth (RW) and temperature during the winter preceding the growing season. Among all variables LWBI and dBI were found to be more sensitive than TRW to SPEI at low-elevation site, with EWBI series containing an opposite climatic signal. LWBI and dBI were significantly related to June and September precipitation at high-elevation site. Winter VPD was related with higher EWI and LWI series, whereas dBI and EWBI were related with January SOI and February NAO. We confirm the potential of long-term dBI series to reconstruct climate in drought-prone regions. This novel study in combination with other wood anatomical measurements has wide implications for further use of BI to understand and reconstruct environmental changes in Mediterranean conifer forests.
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Affiliation(s)
- Linar Akhmetzyanov
- DendroOlavide, Depto. de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Crta. Utrera km. 1, 41013 Sevilla, Spain; Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands.
| | - Raúl Sánchez-Salguero
- DendroOlavide, Depto. de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Crta. Utrera km. 1, 41013 Sevilla, Spain
| | - Ignacio García-González
- Departamento de Botánica, Escola Politécnica Superior de Enxeñaría, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Marta Domínguez-Delmás
- Departamento de Botánica, Escola Politécnica Superior de Enxeñaría, Campus Terra, Universidade de Santiago de Compostela, 27002 Lugo, Spain; University of Amsterdam, Faculty of Humanities, Turfdraagsterpad 15, Postbus 94551, 1090, GN, Amsterdam, the Netherlands
| | - Ute Sass-Klaassen
- Forest Ecology and Forest Management Group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, the Netherlands
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13
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Jakubas D, Wojczulanis-Jakubas K, Szeligowska M, Darecki M, Boehnke R, Balazy K, Trudnowska E, Kidawa D, Grissot A, Descamps S, Błachowiak-Samołyk K. Gone with the wind - Wind speed affects prey accessibility for a High Arctic zooplanktivorous seabird, the little auk Alle alle. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 852:158533. [PMID: 36067858 DOI: 10.1016/j.scitotenv.2022.158533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
Foraging ecology of chick rearing seabirds is affected mainly by the food availability on feeding grounds, but it can be also modulated by environmental conditions during the foraging trip, in that wind force. Considering predicted strengthening of surface winds over the Arctic Ocean, this factor may have a growing impact on the foraging performance of Arctic seabirds. Here, we studied how wind speed could affect prey accessibility for the High Arctic zooplanktivorous seabird, the little auk Alle alle breeding in Svalbard in 2015-2019. First, we estimated availability of its preferred prey, a cold water copepod Calanus glacialis, based on wider-scale mesozooplankton biomass model and environmental conditions. Then we estimated prey accessibility by including wind speed, the factor affecting the flapping flight performance of little auks commuting from/to the colony. Finally, we compared reproductive performance of the little auks (chick diet, growth rate and survival and duration of foraging flights of adults) between the studied years differing in wind and food availability conditions. We found that wind speed could affect significantly food accessibility for a zooplanktivorous seabird. Despite high spatial and temporal variability in prey availability and accessibility in shelf waters of SW Spitsbergen, interannual differences in duration of foraging flights and chick growth rate, little auks were able to sustain high breeding success confirming their capacity to buffer suboptimal foraging conditions. Our multidisciplinary work, combining multi-year remote sensing of oceanographic conditions, zooplankton availability and accessibility modelling, little auks diet composition and chick growth and survival emphasizes the importance of including wind conditions in the studies of foraging ecology of seabirds.
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Affiliation(s)
- Dariusz Jakubas
- Department of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, PL-80-308 Gdańsk, Poland.
| | - Katarzyna Wojczulanis-Jakubas
- Department of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, PL-80-308 Gdańsk, Poland
| | - Marlena Szeligowska
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-712 Sopot, Poland
| | - Miroslaw Darecki
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-712 Sopot, Poland
| | - Rafał Boehnke
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-712 Sopot, Poland
| | - Kaja Balazy
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-712 Sopot, Poland
| | - Emilia Trudnowska
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-712 Sopot, Poland
| | - Dorota Kidawa
- Department of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, PL-80-308 Gdańsk, Poland
| | - Antoine Grissot
- Department of Vertebrate Ecology and Zoology, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, PL-80-308 Gdańsk, Poland
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Heidarizadi Z, Jamali Z. Future Changes in Dry Conditions using Statistical Downscaling Model (SDSM) in the Western Region of Gorgan Plain, Iran. ARID ECOSYSTEMS 2022. [DOI: 10.1134/s2079096122040072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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15
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Pepke ML, Kvalnes T, Rønning B, Jensen H, Boner W, Saether BE, Monaghan P, Ringsby TH. Artificial size selection experiment reveals telomere length dynamics and fitness consequences in a wild passerine. Mol Ecol 2022; 31:6224-6238. [PMID: 34997994 DOI: 10.1111/mec.16340] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 12/10/2021] [Accepted: 12/23/2021] [Indexed: 01/31/2023]
Abstract
Telomere dynamics could underlie life-history trade-offs among growth, size and longevity, but our ability to quantify such processes in natural, unmanipulated populations is limited. We investigated how 4 years of artificial selection for either larger or smaller tarsus length, a proxy for body size, affected early-life telomere length (TL) and several components of fitness in two insular populations of wild house sparrows over a study period of 11 years. The artificial selection was expected to shift the populations away from their optimal body size and increase the phenotypic variance in body size. Artificial selection for larger individuals caused TL to decrease, but there was little evidence that TL increased when selecting for smaller individuals. There was a negative correlation between nestling TL and tarsus length under both selection regimes. Males had longer telomeres than females and there was a negative effect of harsh weather on TL. We then investigated whether changes in TL might underpin fitness effects due to the deviation from the optimal body size. Mortality analyses indicated disruptive selection on TL because both short and long early-life telomeres tended to be associated with the lowest mortality rates. In addition, there was a tendency for a negative association between TL and annual reproductive success, but only in the population where body size was increased experimentally. Our results suggest that natural selection for optimal body size in the wild may be associated with changes in TL during growth, which is known to be linked to longevity in some bird species.
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Affiliation(s)
- Michael Le Pepke
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Thomas Kvalnes
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Bernt Rønning
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Henrik Jensen
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Winnie Boner
- Institute of Biodiversity, Animal Health and Comparative Medicine (IBAHCM), University of Glasgow, Glasgow, UK
| | - Bernt-Erik Saether
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Pat Monaghan
- Institute of Biodiversity, Animal Health and Comparative Medicine (IBAHCM), University of Glasgow, Glasgow, UK
| | - Thor Harald Ringsby
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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Zhu M, Ester GDA, Wang Y, Xu Z, Ye J, Yuan Z, Lin F, Fang S, Mao Z, Wang X, Hao Z. El Niño-Southern Oscillation affects the species-level temporal variation in seed and leaf fall in a mixed temperate forest. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:157751. [PMID: 35926612 DOI: 10.1016/j.scitotenv.2022.157751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/28/2022] [Accepted: 07/28/2022] [Indexed: 06/15/2023]
Abstract
El Niño-Southern Oscillation (ENSO), the variation between anomalously cold (La Niña) and warm conditions (El Niño), is one of the most prominent large-scale climate patterns with worldwide effects. Elevated seed and leaf fall has been found at the positive phase of ENSO (El Niño) in tropical forests. However, how seed and leaf fall respond to ENSO at species level is understudied, especially in temperate forests. In this study, we monitored seed and leaf fall at the species-level at 150 points across a 25-ha temperate forest in northeastern China over a span of 12 years. Using time series and wavelet analyses, we assessed three hypotheses: 1) temperate tree species' seed and leaf fall are strongly, but differently, correlated with ENSO and, 2) community synchrony in seed and leaf occurred both at seasonal and ENSO scales; finally, 3) local climatic modulated the effects of ENSO on seed and leaf fall. We found that ENSO was significantly correlated with seed and leaf fall of all species, although correlation strength varied across species (r = 0.206-0.658). Specifically, ENSO indices (ENSO12 or ENSO34) accounted for the most variation in seed and leaf fall of Acer pseudo-sieboldianum (40 % and 34 %, respectively) and ranged 4 %-31 % in all other species. Leaf fall was synchronous with ENSO cycles with a period of 2-7 years, but community synchrony of seed fall was only detected at seasonal scales. ENSO influenced seed fall of Fraxinus mandshurica and Tilla amurensis by mediating rainfall and relative humidity, respectively, highlighting the interactive effects of local climate and ENSO. Our findings highlight the potential effects of ENSO on ecosystems outside of tropical regions and improve our ability to predict regeneration dynamics and nutrient cycling of temperate forests under the context of global change.
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Affiliation(s)
- Meihui Zhu
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, China
| | | | - Yunyun Wang
- Faculty of Life Science and Technology, Central South University of Forestry and Technology and National Engineering Laboratory for Applied Forest Ecological Technology in Southern China, Changsha, China
| | - Zhichao Xu
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; University of Chinese Academy of Sciences, Beijing 100049, China; Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, China
| | - Ji Ye
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, China
| | - Zuoqiang Yuan
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, China
| | - Fei Lin
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, China
| | - Shuai Fang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, China
| | - Zikun Mao
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, China
| | - Xugao Wang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China; Key Laboratory of Terrestrial Ecosystem Carbon Neutrality, Liaoning Province, China
| | - Zhanqing Hao
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an 710072, China.
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17
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Patterson A, Gilchrist HG, Robertson GJ, Hedd A, Fifield DA, Elliott KH. Behavioural flexibility in an Arctic seabird using two distinct marine habitats to survive the energetic constraints of winter. MOVEMENT ECOLOGY 2022; 10:45. [PMID: 36329536 PMCID: PMC9635182 DOI: 10.1186/s40462-022-00344-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Homeothermic marine animals in Polar Regions face an energetic bottleneck in winter. The challenges of short days and cold temperatures are exacerbated for flying seabirds with small body size and limited fat stores. We use biologging approaches to examine how habitat, weather, and moon illumination influence behaviour and energetics of a marine bird species, thick-billed murres (Uria lomvia). METHODS We used temperature-depth-light recorders to examine strategies murres use to survive winter in the Northwest Atlantic, where contrasting currents create two distinct marine habitats: cold (-0.1 ± 1.2 °C), shallower water along the Labrador Shelf and warmer (3.1 ± 0.3 °C), deep water in the Labrador Basin. RESULTS In the cold shelf water, murres used a high-energy strategy, with more flying and less diving each day, resulting in high daily energy expenditure and also high apparent energy intake; this strategy was most evident in early winter when day lengths were shortest. By contrast, murres in warmer basin water employed a low-energy strategy, with less time flying and more time diving under low light conditions (nautical twilight and night). In warmer basin water, murres increased diving at night when the moon was more illuminated, likely taking advantage of diel vertically migrating prey. In warmer basin water, murres dove more at night and foraging efficiency increased under negative North Atlantic Oscillation (calmer ocean conditions). CONCLUSIONS The proximity of two distinct marine habitats in this region allows individuals from a single species to use dual (low-energy/high-energy) strategies to overcome winter energy bottlenecks.
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Affiliation(s)
- Allison Patterson
- Department of Natural Resource Sciences, McGill University, Ste Anne-de-Bellevue, QC, H9X 3V9, Canada.
| | - H Grant Gilchrist
- Environment and Climate Change Canada, National Wildlife Research Centre, 1125 Colonel By Drive, Raven Road, Ottawa, ON, K1A OH3, Canada
| | - Gregory J Robertson
- Wildlife Research Division, Environment and Climate Change Canada, 6 Bruce Street, Mount Pearl, NL, A1N 4T3, Canada
| | - April Hedd
- Wildlife Research Division, Environment and Climate Change Canada, 6 Bruce Street, Mount Pearl, NL, A1N 4T3, Canada
| | - David A Fifield
- Wildlife Research Division, Environment and Climate Change Canada, 6 Bruce Street, Mount Pearl, NL, A1N 4T3, Canada
| | - Kyle H Elliott
- Department of Natural Resource Sciences, McGill University, Ste Anne-de-Bellevue, QC, H9X 3V9, Canada
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18
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The effect of long-term climatic variability on wild mammal populations in a tropical forest hotspot: A business intelligence framework. ECOL INFORM 2022. [DOI: 10.1016/j.ecoinf.2022.101924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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He J, Wang Y, Liu P, Yin W, Wei X, Sun H, Xu Y, Li S, Soares Magalhaes RJ, Guo Y, Zhang W. Co-effects of global climatic dynamics and local climatic factors on scrub typhus in mainland China based on a nine-year time-frequency analysis. One Health 2022; 15:100446. [PMID: 36277104 PMCID: PMC9582591 DOI: 10.1016/j.onehlt.2022.100446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 09/04/2022] [Accepted: 10/11/2022] [Indexed: 11/29/2022] Open
Abstract
Background Scrub Typhus (ST) is a rickettsial disease caused by Orientia tsutsugamushi. The number of ST cases has been increasing in China during the past decades, which attracts great concerns of the public health. Methods We obtained monthly documented ST cases greater than 54 cases in 434 counties of China during 2012-2020. Spatiotemporal wavelet analysis was conducted to identify the ST clusters with similar pattern of the temporal variation and explore the association between ST variation and El Niño and La Niña events. Wavelet coherency analysis and partial wavelet coherency analysis was employed to further explore the co-effects of global and local climatic factors on ST. Results Wavelet cluster analysis detected seven clusters in China, three of which are mainly distributed in Eastern China, while the other four clusters are located in the Southern China. Among the seven clusters, summer and autumn-winter peak of ST are the two main outbreak periods; while stable and fluctuated periodic feature of ST series was found at 12-month and 4-(or 6-) month according to the wavelet power spectra. Similarly, the three-character bands were also found in the associations between ST and El Niño and La Niña events, among which the 12-month period band showed weakest climate-ST association and the other two bands owned stronger association, indicating that the global climate dynamics may have short-term effects on the ST variations. Meanwhile, 12-month period band with strong association was found between the four local climatic factors (precipitation, pressure, relative humidity and temperature) and the ST variations. Further, partial wavelet coherency analysis suggested that global climatic dynamics dominate annual ST variations, while local climatic factors dominate the small periods. Conclusion The ST variations are not directly attributable to the change in large-scale climate. The existence of these plausible climatic determinants stimulates the interests for more insights into the epidemiology of ST, which is important for devising prevention and early warning strategies.
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Affiliation(s)
- Junyu He
- Ocean College, Zhejiang University, Zhoushan, China,Ocean Academy, Zhejiang University, Zhoushan, China
| | - Yong Wang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Ping Liu
- Department of General Practice, Chinese PLA General Hospital-Sixth Medical Center, Beijing, China
| | - Wenwu Yin
- Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xianyu Wei
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Hailong Sun
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Yuanyong Xu
- Chinese PLA Center for Disease Control and Prevention, Beijing, China
| | - Shanshan Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Ricardo J. Soares Magalhaes
- Spatial Epidemiology Laboratory, School of Veterinary Science, The University of Queensland, Brisbane, Australia,Child Health Research Center, The University of Queensland, Brisbane, Australia
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia,Correspondence to: Y Guo, School of Public Health and Preventive Medicine, Monash University, Level 2, 553 St Kilda Road, Melbourne, VIC 3004, Australia.
| | - Wenyi Zhang
- Chinese PLA Center for Disease Control and Prevention, Beijing, China,Correspondence to: W Zhang, Chinese PLA Center for Disease Control and Prevention, 20 Dong-Da Street, Fengtai District, Beijing 100071, China.
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20
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It’s not all abundance: Detectability and accessibility of food also explain breeding investment in long-lived marine animals. PLoS One 2022; 17:e0273615. [PMID: 36129934 PMCID: PMC9491606 DOI: 10.1371/journal.pone.0273615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 08/13/2022] [Indexed: 11/19/2022] Open
Abstract
Large-scale climatic indices are extensively used as predictors of ecological processes, but the mechanisms and the spatio-temporal scales at which climatic indices influence these processes are often speculative. Here, we use long-term data to evaluate how a measure of individual breeding investment (the egg volume) of three long-lived and long-distance-migrating seabirds is influenced by i) a large-scale climatic index (the North Atlantic Oscillation) and ii) local-scale variables (food abundance, foraging conditions, and competition). Winter values of the North Atlantic Oscillation did not correlate with local-scale variables measured in spring, but surprisingly, both had a high predictive power of the temporal variability of the egg volume in the three study species, even though they have different life-history strategies. The importance of the winter North Atlantic Oscillation suggests carry-over effects of winter conditions on subsequent breeding investment. Interestingly, the most important local-scale variables measured in spring were associated with food detectability (foraging conditions) and the factors influencing its accessibility (foraging conditions and competition by density-dependence). Large-scale climatic indices may work better as predictors of foraging conditions when organisms perform long distance migrations, while local-scale variables are more appropriate when foraging areas are more restricted (e.g. during the breeding season). Contrary to what is commonly assumed, food abundance does not directly translate into food intake and its detectability and accessibility should be considered in the study of food-related ecological processes.
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21
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Wan X, Holyoak M, Yan C, Le Maho Y, Dirzo R, Krebs CJ, Stenseth NC, Zhang Z. Broad-scale climate variation drives the dynamics of animal populations: a global multi-taxa analysis. Biol Rev Camb Philos Soc 2022; 97:2174-2194. [PMID: 35942895 DOI: 10.1111/brv.12888] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 01/07/2023]
Abstract
Climate is a major extrinsic factor affecting the population dynamics of many organisms. The Broad-Scale Climate Hypothesis (BSCH) was proposed by Elton to explain the large-scale synchronous population cycles of animals, but the extent of support and whether it differs among taxa and geographical regions is unclear. We reviewed publications examining the relationship between the population dynamics of multiple taxa worldwide and the two most commonly used broad-scale climate indices, El Niño-Southern Oscillation (ENSO) and North Atlantic Oscillation (NAO). Our review and synthesis (based on 561 species from 221 papers) reveals that population changes of mammals, birds and insects are strongly affected by major oceanic shifts or irregular oceanic changes, particularly in ENSO- and NAO-influenced regions (Pacific and Atlantic, respectively), providing clear evidence supporting Elton's BSCH. Mammal and insect populations tended to increase during positive ENSO phases. Bird populations tended to increase in positive NAO phases. Some species showed dual associations with both positive and negative phases of the same climate index (ENSO or NAO). These findings indicate that some taxa or regions are more or less vulnerable to climate fluctuations and that some geographical areas show multiple weather effects related to ENSO or NAO phases. Beyond confirming that animal populations are influenced by broad-scale climate variation, we document extensive patterns of variation among taxa and observe that the direct biotic and abiotic mechanisms for these broad-scale climate factors affecting animal populations are very poorly understood. A practical implication of our research is that changes in ENSO or NAO can be used as early signals for pest management and wildlife conservation. We advocate integrative studies at both broad and local scales to unravel the omnipresent effects of climate on animal populations to help address the challenge of conserving biodiversity in this era of accelerated climate change.
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Affiliation(s)
- Xinru Wan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Marcel Holyoak
- Department of Environmental Science and Policy, University of California, California, Davis, 95616, USA
| | - Chuan Yan
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yvon Le Maho
- Institut Pluridisciplinaire Hubert Curien (IPHC), Centre National de la Recherche Scientifique (CNRS), Université de Strasbourg, Strasbourg, 67000, France.,Centre Scientifique de Monaco, Monaco, 98000, Monaco
| | - Rodolfo Dirzo
- Department of Biology and Woods Institute for the Environment, Stanford University, Stanford, California, 94305, USA
| | - Charles J Krebs
- Department of Zoology, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - Nils Chr Stenseth
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, N-0316, Norway
| | - Zhibin Zhang
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing, 100101, China.,CAS Center for Excellence in Biotic Interactions, University of Chinese Academy of Sciences, Beijing, 100049, China
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22
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Pepke ML, Kvalnes T, Ranke PS, Araya‐Ajoy YG, Wright J, Sæther B, Jensen H, Ringsby TH. Causes and consequences of variation in early-life telomere length in a bird metapopulation. Ecol Evol 2022; 12:e9144. [PMID: 35923948 PMCID: PMC9339764 DOI: 10.1002/ece3.9144] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 06/24/2022] [Accepted: 07/01/2022] [Indexed: 11/07/2022] Open
Abstract
Environmental conditions during early-life development can have lasting effects shaping individual heterogeneity in fitness and fitness-related traits. The length of telomeres, the DNA sequences protecting chromosome ends, may be affected by early-life conditions, and telomere length (TL) has been associated with individual performance within some wild animal populations. Thus, knowledge of the mechanisms that generate variation in TL, and the relationship between TL and fitness, is important in understanding the role of telomeres in ecology and life-history evolution. Here, we investigate how environmental conditions and morphological traits are associated with early-life blood TL and if TL predicts natal dispersal probability or components of fitness in 2746 wild house sparrow (Passer domesticus) nestlings from two populations sampled across 20 years (1994-2013). We retrieved weather data and we monitored population fluctuations, individual survival, and reproductive output using field observations and genetic pedigrees. We found a negative effect of population density on TL, but only in one of the populations. There was a curvilinear association between TL and the maximum daily North Atlantic Oscillation index during incubation, suggesting that there are optimal weather conditions that result in the longest TL. Dispersers tended to have shorter telomeres than non-dispersers. TL did not predict survival, but we found a tendency for individuals with short telomeres to have higher annual reproductive success. Our study showed how early-life TL is shaped by effects of growth, weather conditions, and population density, supporting that environmental stressors negatively affect TL in wild populations. In addition, shorter telomeres may be associated with a faster pace-of-life, as individuals with higher dispersal rates and annual reproduction tended to have shorter early-life TL.
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Affiliation(s)
- Michael Le Pepke
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
| | - Thomas Kvalnes
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
| | - Peter Sjolte Ranke
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
| | - Yimen G. Araya‐Ajoy
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
| | - Jonathan Wright
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
| | - Bernt‐Erik Sæther
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
| | - Henrik Jensen
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
| | - Thor Harald Ringsby
- Department of Biology, Centre for Biodiversity Dynamics (CBD)Norwegian University of Science and Technology (NTNU)TrondheimNorway
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Remisiewicz M, Underhill LG. Large-Scale Climatic Patterns Have Stronger Carry-Over Effects than Local Temperatures on Spring Phenology of Long-Distance Passerine Migrants between Europe and Africa. Animals (Basel) 2022; 12:ani12131732. [PMID: 35804633 PMCID: PMC9265019 DOI: 10.3390/ani12131732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/30/2022] [Accepted: 07/02/2022] [Indexed: 12/03/2022] Open
Abstract
Simple Summary Spring in Europe has been trending earlier for almost half a century. Long-distance migrant birds, such as the Willow Warbler and Pied Flycatcher, which breed in Europe, have arrived earlier too. It is broadly accepted that warming springs in temperate regions explain the earlier arrival of migrants. However, migration started weeks earlier and thousands of kilometres away. There must be additional cues elsewhere triggering migration. Meteorologists have developed measures of atmospheric circulation which are related to climate variability in wide regions. One of them is the Southern Oscillation Index, which reflects El Niño/La Niña that cause droughts and floods in the southern hemisphere. Other atmospheric circulation patterns, measured by the North Atlantic Oscillation Index and Indian Ocean Dipole, help predict total rainfall for a whole season in various parts of Africa and Europe. Good rains are associated with plant growth and with insect abundance. Insects provide food for most of these migrants. Therefore, this paper asks the question: “Is the timing of arrival of long-distance migrants in spring related to the climates they experience in the places where they are over the year prior to arrival in Europe?” This paper says the answer is “Yes”. Abstract Earlier springs in temperate regions since the 1980s, attributed to climate change, are thought to influence the earlier arrival of long-distance migrant passerines. However, this migration was initiated weeks earlier in Africa, where the Southern Oscillation, Indian Ocean Dipole, North Atlantic Oscillation drive climatic variability, and may additionally influence the migrants. Multiple regressions investigated whether 15 indices of climate in Africa and Europe explained the variability in timing of arrival for seven trans-Saharan migrants. Our response variable was Annual Anomaly (AA), derived from standardized mistnetting from 1982–2021 at Bukowo, Polish Baltic Sea. For each species, the best models explained a considerable part of the annual variation in the timing of spring’s arrival by two to seven climate variables. For five species, the models included variables related to temperature or precipitation in the Sahel. Similarly, the models included variables related to the North Atlantic Oscillation (for four species), Indian Ocean Dipole (three), and Southern Oscillation (three). All included the Scandinavian Pattern in the previous summer. Our conclusion is that climate variables operating on long-distance migrants in the areas where they are present in the preceding year drive the phenological variation of spring migration. These results have implications for our understanding of carry-over effects.
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Affiliation(s)
- Magdalena Remisiewicz
- Bird Migration Research Station, Faculty of Biology, University of Gdańsk, Wita Stwosza 59, 80-308 Gdańsk, Poland
- Department of Biological Sciences, University of Cape Town, Rondebosch, Cape Town 7701, South Africa;
- Correspondence:
| | - Les G. Underhill
- Department of Biological Sciences, University of Cape Town, Rondebosch, Cape Town 7701, South Africa;
- Biodiversity and Development Institute, 25 Old Farm Road, Rondebosch, Cape Town 7700, South Africa
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Duda MP, Cyr F, Robertson GJ, Michelutti N, Meyer-Jacob C, Hedd A, Montevecchi WA, Kimpe LE, Blais JM, Smol JP. Climate oscillations drive millennial-scale changes in seabird colony size. GLOBAL CHANGE BIOLOGY 2022; 28:4292-4307. [PMID: 35320599 DOI: 10.1111/gcb.16171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/12/2022] [Accepted: 03/15/2022] [Indexed: 06/14/2023]
Abstract
Seabird population size is intimately linked to the physical, chemical, and biological processes of the oceans. Yet, the overall effects of long-term changes in ocean dynamics on seabird colonies are difficult to quantify. Here, we used dated lake sediments to reconstruct ~10,000-years of seabird dynamics in the Northwest Atlantic to determine the influences of Holocene-scale climatic oscillations on colony size. On Baccalieu Island (Newfoundland and Labrador, Canada)-where the world's largest colony of Leach's storm-petrel (Hydrobates leucorhous Vieillot 1818) currently breeds-our data track seabird colony growth in response to warming during the Holocene Thermal Maximum (ca. 9000 to 6000 BP). From ca. 5200 BP to the onset of the Little Ice Age (ca. 550 BP), changes in colony size were correlated to variations in the North Atlantic Oscillation (NAO). By contrasting the seabird trends from Baccalieu Island to millennial-scale changes of storm-petrel populations from Grand Colombier Island (an island in the Northwest Atlantic that is subjected a to different ocean climate), we infer that changes in NAO influenced the ocean circulation, which translated into, among many things, changes in pycnocline depth across the Northwest Atlantic basin where the storm-petrels feed. We hypothesize that the depth of the pycnocline is likely a strong bottom-up control on surface-feeding storm-petrels through its influence on prey accessibility. Since the Little Ice Age (LIA), the effects of ocean dynamics on seabird colony size have been altered by anthropogenic impacts. Subsequently, the colony on Baccalieu Island grew at an unprecedented rate to become the world's largest resulting from favorable conditions linked to climate warming, increased vegetation (thereby nesting habitat), and attraction of recruits from other colonies that are now in decline. We show that although ocean dynamics were an important driver of seabird colony dynamics, its recent influence has been modified by human interference.
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Affiliation(s)
- Matthew P Duda
- Paleoecological Environmental Assessment and Research Lab (PEARL), Department of Biology, Queen's University, Kingston, Ontario, Canada
| | - Frédéric Cyr
- Northwest Atlantic Fisheries Centre, Fisheries and Oceans Canada, St. John's, Newfoundland and Labrador, Canada
| | - Gregory J Robertson
- Wildlife Research Division, Environment and Climate Change Canada, Mount Pearl, Newfoundland and Labrador, Canada
| | - Neal Michelutti
- Paleoecological Environmental Assessment and Research Lab (PEARL), Department of Biology, Queen's University, Kingston, Ontario, Canada
| | - Carsten Meyer-Jacob
- Paleoecological Environmental Assessment and Research Lab (PEARL), Department of Biology, Queen's University, Kingston, Ontario, Canada
| | - April Hedd
- Wildlife Research Division, Environment and Climate Change Canada, Mount Pearl, Newfoundland and Labrador, Canada
| | - William A Montevecchi
- Departments of Psychology and Biology, Cognitive and Behavioural Ecology Program, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador, Canada
| | - Linda E Kimpe
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - Jules M Blais
- Department of Biology, University of Ottawa, Ottawa, Ontario, Canada
| | - John P Smol
- Paleoecological Environmental Assessment and Research Lab (PEARL), Department of Biology, Queen's University, Kingston, Ontario, Canada
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Jackson J, Le Coeur C, Jones O. Life-history predicts global population responses to the weather in terrestrial mammals. eLife 2022; 11:74161. [PMID: 35775734 PMCID: PMC9307275 DOI: 10.7554/elife.74161] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 06/30/2022] [Indexed: 11/26/2022] Open
Abstract
With the looming threat of abrupt ecological disruption due to a changing climate, predicting which species are most vulnerable to environmental change is critical. The life-history of a species is an evolved response to its environmental context, and therefore a promising candidate for explaining differences in climate-change responses. However, we need broad empirical assessments from across the world's ecosystems to explore the link between life history and climate-change responses. Here, we use long-term abundance records from 157 species of terrestrial mammals and a two-step Bayesian meta-regression framework to investigate the link between annual weather anomalies, population growth rates, and species-level life history. Overall, we found no directional effect of temperature or precipitation anomalies or variance on annual population growth rates. Furthermore, population responses to weather anomalies were not predicted by phylogenetic covariance, and instead there was more variability in weather responses for populations within a species. Crucially, however, long-lived mammals with smaller litter sizes had smaller absolute population responses to weather anomalies compared with their shorter living counterparts with larger litters. These results highlight the role of species-level life history in driving responses to the environment.
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Affiliation(s)
- John Jackson
- 2.Department of Zoology, University of Oxford, Oxford, United Kingdom
| | | | - Owen Jones
- Department of Biology, University of Southern Denmark, Odense, Denmark
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Modelling Climate Change Impacts on Tropical Dry Forest Fauna. SUSTAINABILITY 2022. [DOI: 10.3390/su14084760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Tropical dry forests are among the most threatened ecosystems in the world, and those occurring in the insular Caribbean are particularly vulnerable. Climate change represents a significant threat for the Caribbean region and for small islands like Jamaica. Using the Hellshire Hills protected area in Jamaica, a simple model was developed to project future abundance of arthropods and lizards based on current sensitivities to climate variables derived from rainfall and temperature records. The abundances of 20 modelled taxa were predicted more often by rainfall variables than temperature, but both were found to have strong impacts on arthropod and lizard abundance. Most taxa were projected to decrease in abundance by the end of the century under drier and warmer conditions. Where an increase in abundance was projected under a low emissions scenario, this change was reduced or reversed under a high emissions climate change scenario. The validation process showed that, even for a small population, there was reasonable skill in predicting its annual variability. Results of this study show that this simple model can be used to identify the vulnerability of similar sites to the effects of shifting climate and, by extension, their conservation needs.
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Connare BM, Islam K. Failure to advance migratory phenology in response to climate change may pose a significant threat to a declining Nearctic-Neotropical songbird. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2022; 66:803-815. [PMID: 35032203 DOI: 10.1007/s00484-022-02239-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 12/22/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
Populations of long-distance migrants that breed in seasonal habitats can be significantly impacted by climate change. We examined the migratory and breeding phenologies of the cerulean warbler (Setophaga cerulea), a declining long-distance Nearctic-Neotropical migrant that breeds in deciduous forests of Indiana. Our primary objectives were to determine temporal trends in cerulean warbler migratory timing, and to identify climate variables that explain variation in this species' migratory and breeding phenologies. We reviewed trends in cerulean warbler first arrival to Indiana from 1982 to 2019, and compared them to several explanatory climate variables: spring temperature, growing degree days (GDD), North Atlantic Oscillation (NAO) index, and Oceanic Niño Index (ONI). We also compared the timing of cerulean warbler first lay dates from 2012 to 2019 with the aforementioned climate variables and annual spring precipitation. Cerulean warblers exhibited a minimal advance in first arrival timing (≤4 days in 38 years). Arrival timing was best predicted by GDD and a null model, but trends in GDD indicate that spring warming in Indiana has advanced by a greater margin, approximately 14 days. Climate variables did not predict first lay timing better than a null model. Springtime in Indiana is occurring earlier, but cerulean warblers are advancing their migratory timing to a much smaller degree. This failure to adapt may have a detrimental effect on warbler populations if it results in an asynchronization of important biological timings between them and their prey. Further studies of cerulean warbler breeding and prey phenologies are necessary to determine how climate change is impacting this species' reproductive success.
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Affiliation(s)
- Brandon M Connare
- College of Sciences and Humanities, Ball State University, Muncie, USA
| | - Kamal Islam
- College of Sciences and Humanities, Ball State University, Muncie, USA.
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Castro-Gutiérrez J, Cabrera-Castro R, Czerwinski IA, Báez JC. Effect of climatic oscillations on small pelagic fisheries and its economic profit in the Gulf of Cadiz. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2022; 66:613-626. [PMID: 34837529 PMCID: PMC8850237 DOI: 10.1007/s00484-021-02223-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 10/13/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
Several studies have shown the effect of climatic oscillations on fisheries. Small pelagic fish are of special global economic importance and very sensitive to fluctuations in the physical environment in which they live. The main goal of this study was to explore the relationship between the North Atlantic Oscillation (NAO), the East Atlantic pattern (EA), and the Arctic Oscillation (AO) on the landings and first sale prices of the most representative small pelagic commercial species of the purse-seine fisheries in the Gulf of Cadiz (North East Atlantic), the European anchovy Engraulis encrasicolus and the European sardine Sardine pilchardus. Generalised linear models (GLMs) with different data transformations and distribution errors were generated to analyse these relationships. The best results of the models were obtained by applying a moving average of order 3 to the dataset with a double weighted median. Our results demonstrate relationships between NAO, AO, and EA and European anchovy and sardine landings. These cause an indirect effect on the first sale price in markets through catch variations, which affect the price according to the law of supply and demand. The limitations of this study and management implications are discussed.
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Affiliation(s)
- Jairo Castro-Gutiérrez
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz. Campus de Excelencia Internacional del Mar (CEIMAR), Avda. República Saharaui, s/n, 11510, Puerto Real, Cadiz, Spain.
| | - Remedios Cabrera-Castro
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz. Campus de Excelencia Internacional del Mar (CEIMAR), Avda. República Saharaui, s/n, 11510, Puerto Real, Cadiz, Spain
- Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional del Mar (CEIMAR), Avda. República Saharaui, s/n, 11510, Puerto Real, Cadiz, Spain
| | - Ivone Alejandra Czerwinski
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz. Campus de Excelencia Internacional del Mar (CEIMAR), Avda. República Saharaui, s/n, 11510, Puerto Real, Cadiz, Spain
- Instituto Español de Oceanografía (IEO-CSIC), Centro Oceanográfico de Cadiz, Muelle de Levante, s/n, 11006, Puerto Pesquero, Cadiz, Spain
| | - José Carlos Báez
- Instituto Español de Oceanografía (IEO-CSIC), Centro Oceanográfico de Málaga, Puerto Pesquero de Fuengirola s/n, 29640, Fuengirola, Spain
- Instituto Iberoamericano de Desarrollo Sostenible, Universidad Autónoma de Chile, Temuco, Chile
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Remisiewicz M, Underhill LG. Climate in Africa sequentially shapes spring passage of Willow Warbler Phylloscopus trochilus across the Baltic coast. PeerJ 2022; 10:e12964. [PMID: 35198263 PMCID: PMC8860065 DOI: 10.7717/peerj.12964] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 01/28/2022] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Many migrant birds have been returning to Europe earlier in spring since the 1980s. This has been attributed mostly to an earlier onset of spring in Europe, but we found the timing of Willow Warblers' passage to be influenced by climate indices for Africa as much as those for Europe. Willow Warblers' spring passage through northern Europe involves populations from different wintering quarters in Africa. We therefore expected that migration timing in the early, middle and late periods of spring would be influenced sequentially by climate indices operating in different parts of the winter range. METHODS Using data from daily mistnetting in 1 April-15 May over 1982-2017 at Bukowo (Poland, Baltic Sea coast), we derived an Annual Anomaly (AA, in days) of Willow Warbler spring migration. We decomposed this anomaly into three main periods (1-26 April, 27 April-5 May, 6-15 May); one-third of migrants in each period. We modelled three sequential time series of spring passage using calendar year and 15 large-scale climate indices averaged over the months of Willow Warblers' life stages in the year preceding spring migration as explanatory variables in multiple regression models. Nine climate variables were selected in the best models. We used these nine explanatory variables and calculated their partial correlations in models for nine overlapping sub-periods of AA. The pattern of relationships between AA in these nine sub-periods of spring and the nine climate variables indicated how spring passage had responded to the climate. We recommend this method for the study of birds' phenological responses to climate change. RESULTS The Southern Oscillation Index and Indian Ocean Dipole in Aug-Oct showed large partial correlations early in the passage, then faded in importance. For the Sahel Precipitation Index (PSAH) and Sahel Temperature Anomaly (TSAH) in Aug-Oct partial correlations occurred early then peaked in mid-passage; for PSAH (Nov-March) correlations peaked at the end of passage. NAO and local temperatures (April-May) showed low correlations till late April, which then increased. For the Scandinavian Index (Jun-Jul) partial correlations peaked in mid-passage. Year was not selected in any of the best models, indicating that the climate variables alone accounted for Willow Warblers' multiyear trend towards an earlier spring passage. DISCUSSION Climate indices for southern and eastern Africa dominated relationships in early spring, but western African indices dominated in mid- and late spring. We thus concluded that Willow Warblers wintering in southern and eastern Africa dominated early arrivals, but those from western Africa dominated later. We suggest that drivers of phenological shifts in avian migration are related to changes in climate at remote wintering grounds and at stopovers, operating with climate change in the north, especially for species with complex and long-distance migration patterns.
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Affiliation(s)
- Magdalena Remisiewicz
- Bird Migration Research Station, Faculty of Biology, University of Gdańsk, Wita Stwosza, Poland,Department of Biological Sciences, University of Cape Town, Rondebosch, Cape Town, South Africa
| | - Les G. Underhill
- Department of Biological Sciences, University of Cape Town, Rondebosch, Cape Town, South Africa,Biodiversity and Development Institute, Rondebosch, Cape Town, South Africa
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30
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Cuesta-García M, Rodríguez A, Martins AM, Neves V, Magalhães M, Atchoi E, Fraga H, Medeiros V, Laranjo M, Rodríguez Y, Jones K, Bried J. Targeting efforts in rescue programmes mitigating light-induced seabird mortality: First the fat, then the skinny. J Nat Conserv 2022. [DOI: 10.1016/j.jnc.2021.126080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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OUP accepted manuscript. J Mammal 2022. [DOI: 10.1093/jmammal/gyac053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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32
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Wood MJ, Canonne C, Besnard A, Lachish S, Fairhurst SM, Liedvogel M, Boyle D, Patrick SC, Josey S, Kirk H, Dean B, Guilford T, McCleery RM, Perrins CM, Horswill C. Demographic profiles and environmental drivers of variation relate to individual breeding state in a long-lived trans-oceanic migratory seabird, the Manx shearwater. PLoS One 2021; 16:e0260812. [PMID: 34914747 PMCID: PMC8675709 DOI: 10.1371/journal.pone.0260812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 11/17/2021] [Indexed: 11/18/2022] Open
Abstract
Understanding the points in a species breeding cycle when they are most vulnerable to environmental fluctuations is key to understanding interannual demography and guiding effective conservation and management. Seabirds represent one of the most threatened groups of birds in the world, and climate change and severe weather is a prominent and increasing threat to this group. We used a multi-state capture-recapture model to examine how the demographic rates of a long-lived trans-oceanic migrant seabird, the Manx shearwater Puffinus puffinus, are influenced by environmental conditions experienced at different stages of the annual breeding cycle and whether these relationships vary with an individual's breeding state in the previous year (i.e., successful breeder, failed breeder and non-breeder). Our results imply that populations of Manx shearwaters are comprised of individuals with different demographic profiles, whereby more successful reproduction is associated with higher rates of survival and breeding propensity. However, we found that all birds experienced the same negative relationship between rates of survival and wind force during the breeding season, indicating a cost of reproduction (or central place constraint for non-breeders) during years with severe weather conditions. We also found that environmental effects differentially influence the breeding propensity of individuals in different breeding states. This suggests individual spatio-temporal variation in habitat use during the annual cycle, such that climate change could alter the frequency that individuals with different demographic profiles breed thereby driving a complex and less predictable population response. More broadly, our study highlights the importance of considering individual-level factors when examining population demography and predicting how species may respond to climate change.
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Affiliation(s)
- Matt J. Wood
- School of Natural & Social Sciences, University of Gloucestershire, Cheltenham, United Kingdom
- * E-mail:
| | - Coline Canonne
- CEFE, Univ Montpellier, CNRS, EPHE-PSL University, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Aurélien Besnard
- CEFE, Univ Montpellier, CNRS, EPHE-PSL University, IRD, Univ Paul Valéry Montpellier 3, Montpellier, France
| | - Shelly Lachish
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Stace M. Fairhurst
- School of Natural & Social Sciences, University of Gloucestershire, Cheltenham, United Kingdom
| | - Miriam Liedvogel
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Dave Boyle
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Samantha C. Patrick
- School of Natural & Social Sciences, University of Gloucestershire, Cheltenham, United Kingdom
| | - Simon Josey
- National Oceanography Centre, University of Southampton, Southampton, United Kingdom
| | - Holly Kirk
- Oxford Navigation Group, Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Ben Dean
- Oxford Navigation Group, Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Tim Guilford
- Oxford Navigation Group, Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Robin M. McCleery
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Chris M. Perrins
- Edward Grey Institute, Department of Zoology, University of Oxford, Oxford, United Kingdom
| | - Cat Horswill
- ZSL Institute of Zoology, London, United Kingdom
- Centre for Biodiversity and Environmental Research, Department of Genetics, Evolution and Environment, University College London, London, United Kingdom
- Department of Zoology, University of Cambridge, Cambridge, United Kingdom
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Orgeret F, Thiebault A, Kovacs KM, Lydersen C, Hindell MA, Thompson SA, Sydeman WJ, Pistorius PA. Climate change impacts on seabirds and marine mammals: The importance of study duration, thermal tolerance and generation time. Ecol Lett 2021; 25:218-239. [PMID: 34761516 DOI: 10.1111/ele.13920] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/01/2021] [Accepted: 10/13/2021] [Indexed: 11/27/2022]
Abstract
Understanding climate change impacts on top predators is fundamental to marine biodiversity conservation, due to their increasingly threatened populations and their importance in marine ecosystems. We conducted a systematic review of the effects of climate change (prolonged, directional change) and climate variability on seabirds and marine mammals. We extracted data from 484 studies (4808 published studies were reviewed), comprising 2215 observations on demography, phenology, distribution, diet, behaviour, body condition and physiology. The likelihood of concluding that climate change had an impact increased with study duration. However, the temporal thresholds for the effects of climate change to be discernibly varied from 10 to 29 years depending on the species, the biological response and the oceanic study region. Species with narrow thermal ranges and relatively long generation times were more often reported to be affected by climate change. This provides an important framework for future assessments, with guidance on response- and region-specific temporal dimensions that need to be considered when reporting effects of climate change. Finally, we found that tropical regions and non-breeding life stages were poorly covered in the literature, a concern that should be addressed to enable a better understanding of the vulnerability of marine predators to climate change.
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Affiliation(s)
- Florian Orgeret
- Marine Apex Predator Research Unit (MAPRU), Department of Zoology, Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South Africa
| | - Andréa Thiebault
- Marine Apex Predator Research Unit (MAPRU), Department of Zoology, Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South Africa
| | - Kit M Kovacs
- Norwegian Polar Institute, Fram Centre, Tromsø, Norway
| | | | - Mark A Hindell
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | | | | | - Pierre A Pistorius
- Marine Apex Predator Research Unit (MAPRU), Department of Zoology, Institute for Coastal and Marine Research, Nelson Mandela University, Port Elizabeth, South Africa.,DST-NRF Centre of Excellence at the FitzPatrick Institute of African Ornithology, Nelson Mandela University, Port Elizabeth, South Africa
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Araneda-Cabrera RJ, Bermúdez M, Puertas J. Benchmarking of drought and climate indices for agricultural drought monitoring in Argentina. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:148090. [PMID: 34091335 DOI: 10.1016/j.scitotenv.2021.148090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 05/09/2021] [Accepted: 05/24/2021] [Indexed: 06/12/2023]
Abstract
Site-specific studies are required to identify suitable drought indices (DIs) for assessing and predicting drought-related impacts. This study presents a benchmark of eight DIs and 19 large-scale climate indices (CIs) to monitor agricultural drought in Argentina. First, the link between the CIs and DIs was investigated at the departmental-administrative level and at different temporal scales. Then, the effectiveness of the DIs in explaining the variability of crop yields, understood as impacts of agricultural droughts, was evaluated using statistical regression models. Soybeans were used as the reference crop. Additionally, the performances of DIs and CIs in explaining the variability of crop yields were compared. The CIs located in the Pacific Ocean (El Niño 3.4 and El Niño 4) were found to have the best correlations with the DIs (R values up to 0.49). These relationships were stronger with longer temporal aggregations and during the wet and hot seasons (summer), showing a significant role in the triggering of droughts in Argentina. The DIs that best corelated with CIs were those that included temperature in their calculations (STCI, SVHI, and SPEI). The impacts of droughts on soybean production were better explained using DIs than with CIs (up to 89% vs 8% of variability explained) as predictors of the statistical models. SVHI-6 and SPEI-6, depending on the area of interest, were, during the phenological period of crop growth (summer), the most effective DIs in explaining annual variations in soybean yields. The results may be of interest in water resource management, drought risk management, and the Argentinean soybean production sector. Furthermore, they provide a foundation for future studies aimed at forecasting agricultural droughts and their impacts.
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Affiliation(s)
- Ronnie J Araneda-Cabrera
- Water and Environmental Engineering Group (GEAMA), University of A Coruña, Civil Engineering School, Campus de Elviña, 15008 A Coruña, Spain.
| | - María Bermúdez
- Environmental Fluid Dynamics Group, Andalusian Institute for Earth System Research, University of Granada, Av. Del Mediterráneo s/n, 18006 Granada, Spain
| | - Jerónimo Puertas
- Water and Environmental Engineering Group (GEAMA), University of A Coruña, Civil Engineering School, Campus de Elviña, 15008 A Coruña, Spain
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Multiyear trend in reproduction underpins interannual variation in gametogenic development of an Antarctic urchin. Sci Rep 2021; 11:18868. [PMID: 34552166 PMCID: PMC8458454 DOI: 10.1038/s41598-021-98444-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/24/2021] [Indexed: 02/08/2023] Open
Abstract
Ecosystems and their biota operate on cyclic rhythms, often entrained by predictable, small-scale changes in their natural environment. Recording and understanding these rhythms can detangle the effect of human induced shifts in the climate state from natural fluctuations. In this study, we assess long-term patterns of reproductive investment in the Antarctic sea urchin, Sterechinus neumayeri, in relation to changes in the environment to identify drivers of reproductive processes. Polar marine biota are sensitive to small changes in their environment and so serve as a barometer whose responses likely mirror effects that will be seen on a wider global scale in future climate change scenarios. Our results indicate that seasonal reproductive periodicity in the urchin is underpinned by a multiyear trend in reproductive investment beyond and in addition to, the previously reported 18-24 month gametogenic cycle. Our model provides evidence that annual reproductive investment could be regulated by an endogenous rhythm since environmental factors only accounted for a small proportion of the residual variation in gonad index. This research highlights a need for multiyear datasets and the combination of biological time series data with large-scale climate metrics that encapsulate multi-factorial climate state shifts, rather than using single explanatory variables to inform changes in biological processes.
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Baltag ES, Kovacs I, Sfîcă L. Common Buzzards wintering strategies as an effect of weather conditions and geographic barriers. Ecol Evol 2021; 11:9697-9706. [PMID: 34306655 PMCID: PMC8293765 DOI: 10.1002/ece3.7793] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 05/19/2021] [Accepted: 05/24/2021] [Indexed: 11/07/2022] Open
Abstract
AIM Migration is a constantly changing adaptation due to the climate condition evolution. The struggle for surviving during harsh winter season is different across Europe, being more complex toward the inner parts of the continent. The current approach explores the Common Buzzard number variation during the cold season and the climatic predictors of birds of prey wintering movements in relation to the possible influences of the Carpathian Mountains, which may act as a geographical barrier providing shelter from cold air outbreak from north and northeast of the continent. LOCATION Romania (45°N25°E). TAXON Birds of Prey. METHODS We applied a GLMM to investigate the relation between continental and local climatic factors with the number of Common Buzzard observations in two regions. The first region is located inside the Carpathian Arch and the other one outside, east of this large mountains chain. RESULTS The Common Buzzard numbers wintering Eastern from the Carpathian Mountains are highly influenced by AO (Z = 2.87, p < .05%), while those wintering western are influenced by NAO (Z = 2.17, p < .05%). This is the first proof of separating influences for biodiversity of AO and NAO at continental scale, outlining the influence limit placed over the Eastern Carpathian Mountains. MAIN CONCLUSIONS The Carpathian Mountains act like a geographic barrier, separating the wintering Common Buzzard populations from both sides of the mountain range. While the high number of individuals in Moldova is related to their eastern and northeastern Europe origins, in Transylvania the large number of individuals observed is related to the more sheltered characteristics of the region attracting individuals from central Europe. Also, since Transylvania region is well sheltered during cold air outbreak, it represents a more favorable region for wintering. From this point of view, we can consider that the Carpathian Mountains are a geographic barrier for wintering birds of prey.
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Affiliation(s)
- Emanuel Stefan Baltag
- Marine Biological Station “Prof. Dr. Ioan Borcea”, Agigea“Alexandru Ioan Cuza” University of IasiIasiIasiRomania
| | - Istvan Kovacs
- Association for Bird and Nature Protection “Milvus Group”Targu MuresRomania
| | - Lucian Sfîcă
- Faculty of Geography and Geology“Alexandru Ioan Cuza” University of IasiIasiRomania
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Cordeiro DA, Costa GMJ, França LR. Testis structure, duration of spermatogenesis and daily sperm production in four wild cricetid rodent species (A. cursor, A. montensis, N. lasiurus, and O. nigripes). PLoS One 2021; 16:e0251256. [PMID: 34014973 PMCID: PMC8136699 DOI: 10.1371/journal.pone.0251256] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 04/23/2021] [Indexed: 11/24/2022] Open
Abstract
Although rodents represent approximately 40% of all living mammalian species, our knowledge regarding their reproductive biology is still scarce. Due to their high vulnerability to environmental changes, wild rodents have become beneficial models for ecological studies. Thus, we aimed to comparatively investigate key functional testis parameters in four sexually mature wild rodent species (A. cursor, A. montensis, N. lasiurus, and O. nigripes). These species belong to the Cricetidae family, which is the most diverse family of rodents in South America, with a total of ~120 species in Brazil. The results found for the gonadosomatic index and the sickled sperm head shape observed strongly suggest that the species here evaluated are promiscuous, prolific, and short-lived. The duration of spermatogenesis was relatively short and varied from ~35-40 days. Both the percentage of seminiferous tubules (ST) in the testis parenchyma (~95-97%) and the number of Sertoli cells (SC) (~48-70 million) per testis gram were very high, whereas a fairly good SC efficiency (~8-13 round spermatids per SC) was observed. In comparison to other mammalian species studied, particularly the rodents of the suborder Myomorpha (i.e. hamsters, rats and mice), the rodents herein investigated exhibited very high (~62-80 million) daily sperm production per testis gram. This impressive spermatogenic efficiency resulted mainly from the short duration of spermatogenesis and quite high values found for the ST percentage in the testis and the SC number per testis gram. We expect that the knowledge here obtained will help conservation programs and the proper management of wildlife.
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Affiliation(s)
- Dirceu A. Cordeiro
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais—UFMG, Belo Horizonte, MG, Brazil
- UNINCOR, Três Corações, MG, Brazil
| | - Guilherme M. J. Costa
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais—UFMG, Belo Horizonte, MG, Brazil
| | - Luiz R. França
- Laboratory of Cellular Biology, Department of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais—UFMG, Belo Horizonte, MG, Brazil
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Messmer DJ, Warren JM, Deane CE, Clark RG. Prefledging Growth and Recruitment of Female Lesser Scaup. J Wildl Manage 2021. [DOI: 10.1002/jwmg.22024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- David J. Messmer
- Department of Biology, 112 Science Place University of Saskatchewan Saskatoon SK S7N 5E2 Canada
| | - Jeffrey M. Warren
- Red Rock Lakes National Wildlife Refuge, US Fish and Wildlife Service 27650B South Valley Road Lakeview MT 59739 USA
| | - Cody E. Deane
- Biology & Wildlife Department University of Alaska 101 Murie Building Fairbanks AK 99775 USA
| | - Robert G. Clark
- Department of Biology, 112 Science Place University of Saskatchewan Saskatoon SK S7N 5E2 Canada
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Marchant R, Guppy M, Guppy S. The influence of the Southern Oscillation Index on the timing of breeding of a forest-bird community in south-eastern Australia. WILDLIFE RESEARCH 2021. [DOI: 10.1071/wr21004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
ContextLong-term changes in the breeding phenology of bird communities have been widely studied. For many species, breeding appears to be starting earlier as temperatures increase. For south-eastern Australia, such a trend has not so far been demonstrated.
AimsThe aim was to determine how the date of laying of the first egg (FE; for sedentary species) or arrival times (for migratory species) responded to climatic factors such as rainfall, air temperature and the Southern Oscillation Index (SOI), and whether FE or arrival time showed a trend through time.
MethodsThe date of laying of the first egg (FE) for 13 sedentary species of birds was recorded over 18 (1975–1984 and 2007–2014) breeding seasons (August to January) at a single site in a coastal forest in south-eastern Australia. The arrival times for seven migratory species were also recorded for these seasons.
Key resultsLinear mixed models showed that FE was negatively correlated with the mean monthly SOI for April to July (A-J SOI), the period directly before the breeding season. Eggs were laid earlier when A-J SOI was positive and later when it was negative. SOIs calculated over different combinations of months showed that those for the January to March period had no influence on FE. FE was not related to minimum or maximum temperatures during April to July, despite increases in temperature between 1975 and 2014, nor was it related to rainfall between April and July. Mixed linear models showed that arrival date for migratory species became earlier between 1975 and 2014, but was uninfluenced by A-J SOI or rainfall.
ConclusionsMigratory species arrived earlier by 0.27 days per year. However, this was at least an order of magnitude smaller than annual temporal changes in FE for sedentary species (6–7 days) associated with cyclical SOI fluctuations. Changes in SOI dominated the annual breeding phenology of the community.
ImplicationsThe mechanisms by which A-J SOI influences the timing of nesting may be related to the primary productivity of forests and the influence of this on insect abundance. There are few data on these factors.
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Following the infection dynamics of the tropical trematode Oligogonotylus mayae in its intermediate and definitive hosts for 13 years. J Helminthol 2020; 94:e208. [PMID: 33138868 DOI: 10.1017/s0022149x20000875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
We present a time series of 13 years (2003-2016) of continuous monthly data on the prevalence and mean abundance of the trematode Oligogonotylus mayae for all the hosts involved in its life cycle. We aimed to determine whether annual (or longer than annual) environmental fluctuations affect these infection parameters of O. mayae in its intermediate snail host Pyrgophorus coronatus, and its second and definitive fish host Mayaheros urophthalmus from the Celestun tropical coastal lagoon, Yucatan, Mexico. Fourier time series analysis was used to identify infection peaks over time, and cross-correlation among environmental forcings and infection parameters. Our results suggest that the transmission of O. mayae in all its hosts was influenced by the annual patterns of temperature, salinity and rainfall. However, there was a biannual accumulation of metacercarial stages of O. mayae in M. urophthalmus, apparently associated with the temporal range of the El Niño-Southern Oscillation (five years) and the recovery of the trematode population after a devasting hurricane. Taking O. mayae as an example of what could be happening to other trematodes, it is becoming clear that environmental forcings acting at long-term temporal scales affect the population dynamics of these parasites.
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Holyoak M, Caspi T, Redosh LW. Integrating Disturbance, Seasonality, Multi-Year Temporal Dynamics, and Dormancy Into the Dynamics and Conservation of Metacommunities. Front Ecol Evol 2020. [DOI: 10.3389/fevo.2020.571130] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Durant JM, Ono K, Stenseth NC, Langangen Ø. Nonlinearity in interspecific interactions in response to climate change: Cod and haddock as an example. GLOBAL CHANGE BIOLOGY 2020; 26:5554-5563. [PMID: 32623765 DOI: 10.1111/gcb.15264] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/14/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
Climate change has profound ecological effects, yet our understanding of how trophic interactions among species are affected by climate change is still patchy. The sympatric Atlantic haddock and cod are co-occurring across the North Atlantic. They compete for food at younger stages and thereafter the former is preyed by the latter. Climate change might affect the interaction and coexistence of these two species. Particularly, the increase in sea temperature (ST) has been shown to affect distribution, population growth and trophic interactions in marine systems. We used 33-year long time series of haddock and cod abundances estimates from two data sources (acoustic and trawl survey) to analyse the dynamic effect of climate on the coexistence of these two sympatric species in the Arcto-Boreal Barents Sea. Using a Bayesian state-space threshold model, we demonstrated that long-term climate variation, as expressed by changes of ST, affected species demography through different influences on density-independent processes. The interaction between cod and haddock has shifted in the last two decades due to an increase in ST, altering the equilibrium abundances and the dynamics of the system. During warm years (ST over ca. 4°C), the increase in the cod abundance negatively affected haddock abundance while it did not during cold years. This change in interactions therefore changed the equilibrium population size with a higher population size during warm years. Our analyses show that long-term climate change in the Arcto-Boreal system can generate differences in the equilibrium conditions of species assemblages.
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Affiliation(s)
- Joël M Durant
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
| | - Kotaro Ono
- Institute for Marine Research (IMR), Bergen, Norway
| | - Nils Chr Stenseth
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
- Centre for Coastal Research (CCR), Department of Natural Sciences, University of Agder, Kristiansand, Norway
| | - Øystein Langangen
- Centre for Ecological and Evolutionary Synthesis (CEES), Department of Biosciences, University of Oslo, Oslo, Norway
- Section for Aquatic Biology and Toxicology (AQUA), Department of Biosciences, University of Oslo, Oslo, Norway
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Brown C, Rinaldi CE, Ripple WJ, Van Valkenburgh B. Skeletal and Dental Development Preserve Evidence of Energetic Stress in the Moose of Isle Royale. Front Ecol Evol 2020. [DOI: 10.3389/fevo.2020.00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Contrasting Signals of the Westerly Index and North Atlantic Oscillation over the Drought Sensitivity of Tree-Ring Chronologies from the Mediterranean Basin. ATMOSPHERE 2020. [DOI: 10.3390/atmos11060644] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Extreme drought events are becoming increasingly frequent and extended, particularly in Mediterranean drought-prone regions. In this sense, atmospheric oscillations patterns, such as those represented by the North Atlantic Oscillation (NAO) index and the Westerly Index (WI) have been widely proven as reliable proxies of drought trends. Here, we used the Standardized Precipitation–Evapotranspiration Index (SPEI), as a reliable indicator of drought, to investigate the drought sensitivity of tree-ring width data (TRW) from several long-lived tree species (Abies borisii-regis, Abies cilicica, Abies pinsapo, Cedrus atlantica, Cedrus libanii, Pinus nigra, Pinus heldreichii). NAO and WI relations with TRW were also investigated in order to identify potential non-stationary responses among those drought proxies. Our temporal and spatial analyses support contrasting Mediterranean dipole patterns regarding the drought sensitivity of tree growth for each tree species. The spatial assessment of NAO and WI relationships regarding SPEI and TRW showed on average stronger correlations westward with non-stationary correlations between annual WI index and TRW in all species. The results indicate that the drought variability and the inferred drought-sensitive trees species (e.g., C. atlantica) are related to the NAO and the WI, showing that TRW is a feasible proxy to long-term reconstructions of Westerly Index (WI) variability in the Western Mediterranean region. Spatial variability of drought severity suggests a complex association between NAO and WI, likely modulated by an east–west Mediterranean climate dipole.
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Ramirez‐Parada T, Cabrera D, Diaz‐Martin Z, Browne L, Karubian J. Resource‐related variables drive individual variation in flowering phenology and mediate population‐level flowering responses to climate in an asynchronously reproducing palm. Biotropica 2020. [DOI: 10.1111/btp.12792] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Tadeo Ramirez‐Parada
- Department of Ecology and Evolutionary Biology Tulane University New Orleans LA USA
| | - Domingo Cabrera
- Foundation for the Conservation of the Tropical Andes Quito Ecuador
| | - Zoe Diaz‐Martin
- Department of Ecology and Evolutionary Biology Tulane University New Orleans LA USA
- Foundation for the Conservation of the Tropical Andes Quito Ecuador
| | - Luke Browne
- Foundation for the Conservation of the Tropical Andes Quito Ecuador
- UCLA La Kretz Center for California Conservation Science, Institute of the Environment and Sustainability University of California Los Angeles Los Angeles CA USA
| | - Jordan Karubian
- Department of Ecology and Evolutionary Biology Tulane University New Orleans LA USA
- Foundation for the Conservation of the Tropical Andes Quito Ecuador
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Faure‐Lacroix J, Desrochers A, Imbeau L, Simard A. Long-term changes in bat activity in Quebec suggest climatic responses and summer niche partitioning associated with white-nose syndrome. Ecol Evol 2020; 10:5226-5239. [PMID: 32607146 PMCID: PMC7319131 DOI: 10.1002/ece3.6194] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 01/31/2020] [Accepted: 02/05/2020] [Indexed: 11/24/2022] Open
Abstract
In North America, the greatest and most sudden threat to hibernating bats is white-nose syndrome (WNS), which has caused massive declines in populations since 2006. Other determinants of bat dynamics, such as the climate, and the effect of reduction in the number of individuals sharing foraging space and summer roosting habitat may have an effect on population dynamics. We analyzed transect acoustic bat surveys conducted with ultrasonic detectors in 16 regions in Quebec, Canada, between 2000 and 2015. We used piecewise regression to describe changes in activity over time for each species and a meta-analytic approach to measure its association with the North Atlantic Oscillation (NAO). As expected, mouse-eared bat (Myotis spp.) activity sharply declined after the onset of WNS, down by 79% after 3 years. In contrast, big brown/silver-haired bat activity increased over the same period, possibly due to a release of competition. Hoary bats and red bats remained present, although their activity did not increase. Myotis activity was positively correlated with a one-year lag to the NAO index, associated with cold conditions in winter, but warm autumns. Big brown/silver-haired and hoary bats were also more active during NAO-positive years but without a lag. We conclude that combinations of threats may create rapid shifts in community compositions and that a more balanced research agenda that integrates a wider range of threats would help better understand and manage those changes.
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Affiliation(s)
- Julie Faure‐Lacroix
- Centre d'étude de la forêtFaculté de foresteriede géographie et de géomatiqueUniversité LavalQuébec CityQCCanada
| | - André Desrochers
- Centre d'étude de la forêtFaculté de foresteriede géographie et de géomatiqueUniversité LavalQuébec CityQCCanada
| | - Louis Imbeau
- Centre d'étude de la forêtUQATRouyn‐NorandaQCCanada
| | - Anouk Simard
- Ministère des Forêts de la Faune et des Parc du QuébecQuebec Centre for Biodiversity ScienceQuébec CityQCCanada
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Flexibility of little auks foraging in various oceanographic features in a changing Arctic. Sci Rep 2020; 10:8283. [PMID: 32427941 PMCID: PMC7237489 DOI: 10.1038/s41598-020-65210-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 04/30/2020] [Indexed: 11/29/2022] Open
Abstract
Using GPS-tracked individuals, we compared foraging ecology and reproductive output of a High-Arctic zooplanktivorous seabird, the little auk Alle alle, between three years differing in environmental conditions (sea surface temperature). Despite contrasting environmental conditions, average foraging fights distance and duration were generally similar in all studied years. Also, in all years foraging locations visited by the little auk parents during short trips (ST, for chick provisioning) were significantly closer to the colony compared to those visited during long trips (LTs, mainly for adults’ self-maintenance). Nevertheless, we also found some differences in the little auk foraging behaviour: duration of LTs was the longest in the coldest year suggesting more time for resting for adults compared to warmer years. Besides, birds foraged closer to the colony and in significantly colder water in the coldest year. Interestingly, these differences did not affect chick diet: in all the years, the energy content of food loads was similar, with the Arctic copepod, Calanus glacialis copepodite stage V being the most preferred prey item (>73% of items by number and >67% by energy content). Also chick survival was similar in all the study years. However, when examining chicks growth rate we found that their peak body mass was lower in warmer years suggesting that overall conditions in the two warm years were less favourable. While our results, demonstrate a great foraging flexibility by little auks, they also point out their vulnerability to changing environmental conditions.
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Santana-Piñeros AM, Cruz-Quintana Y, May-Tec AL, Mera-Loor G, Aguirre-Macedo ML, Suárez-Morales E, González-Solís D. The 2015-2016 El Niño increased infection parameters of copepods on Eastern Tropical Pacific dolphinfish populations. PLoS One 2020; 15:e0232737. [PMID: 32392234 PMCID: PMC7213719 DOI: 10.1371/journal.pone.0232737] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 04/21/2020] [Indexed: 12/04/2022] Open
Abstract
The oceanographic conditions of the Pacific Ocean are largely modified by El Niño (EN), affecting several ecological processes. Parasites and other marine organisms respond to environmental variation, but the influence of the EN cycle on the seasonal variation of parasitic copepods has not been yet evaluated. We analysed the relation between infection parameters (prevalence and mean intensity) of the widespread parasitic copepods Caligus bonito and Charopinopsis quaternia in the dolphinfish Coryphaena hippurus and oceanography during the strong 2015–16 EN. Fish were collected from capture fisheries on the Ecuadorian coast (Tropical Eastern Pacific) over a 2-year period. Variations of sea surface temperature (SST), salinity, chlorophyll a (Chl-a), Oceanic Niño Index (ONI), total host length (TL) and monthly infection parameters of both copepod species were analysed using time series and cross-correlations. We used the generalised additive models for determine the relationship between environmental variables and infection parameters. The total body length of the ovigerous females and the length of the eggs of C. bonito were measured in both periods. Infection parameters of both C. bonito and Ch. quaternia showed seasonal and annual patterns associated with the variation of environmental variables examined (SST, salinity, Chl-a and ONI 1+2). Infection parameters of both copepod species were significantly correlated with ONI 1+2, SST, TL and Chl-a throughout the GAMLSS model, and the explained deviance contribution ranged from 16%-36%. Our results suggest than an anomaly higher than +0.5°C triggers a risen in infection parameters of both parasitic copepods. This risen could be related to increases in egg length, female numbers and the total length of the ovigerous females in EN period. This study provides the first evidence showing that tropical parasitic copepods are sensitive to the influence of EN event, especially from SST variations. The observed behaviour of parasitic copepods likely affects the host populations and structure of the marine ecosystem at different scales.
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Affiliation(s)
- Ana María Santana-Piñeros
- Grupo de Investigación en Sanidad Acuícola, Inocuidad y Salud Ambiental, Escuela de Acuicultura y Pesquería, Universidad Técnica de Manabí, Bahía de Caráquez, Manabí, Ecuador
- Departamento Central de Investigación, Universidad Laica “Eloy Alfaro” de Manabí, Manta, Manabí, Ecuador
- El Colegio de la Frontera Sur (ECOSUR), Unidad Chetumal, Chetumal, Quintana Roo, México
- * E-mail:
| | - Yanis Cruz-Quintana
- Grupo de Investigación en Sanidad Acuícola, Inocuidad y Salud Ambiental, Escuela de Acuicultura y Pesquería, Universidad Técnica de Manabí, Bahía de Caráquez, Manabí, Ecuador
- Departamento Central de Investigación, Universidad Laica “Eloy Alfaro” de Manabí, Manta, Manabí, Ecuador
- El Colegio de la Frontera Sur (ECOSUR), Unidad Chetumal, Chetumal, Quintana Roo, México
| | - Ana Luisa May-Tec
- Laboratorio de Patología Acuática y Parasitología, Departamento de Recursos del Mar, CINVESTAV-IPN Unidad Mérida, Mérida, Yucatán, México
| | - Geormery Mera-Loor
- Departamento Central de Investigación, Universidad Laica “Eloy Alfaro” de Manabí, Manta, Manabí, Ecuador
- Carrera de Tecnología Superior en Acuicultura, Instituto Tecnológico Superior “Luis Arboleda Martínez”, Secretaría de Educación Superior, Ciencia, Tecnología e Innovación, Jaramijó, Manabí, Ecuador
| | - María Leopoldina Aguirre-Macedo
- Laboratorio de Patología Acuática y Parasitología, Departamento de Recursos del Mar, CINVESTAV-IPN Unidad Mérida, Mérida, Yucatán, México
| | | | - David González-Solís
- El Colegio de la Frontera Sur (ECOSUR), Unidad Chetumal, Chetumal, Quintana Roo, México
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Thurber BG, Roy C, Zimmerling JR. Long-term changes in the autumn migration phenology of dabbling ducks in southern Ontario and implications for waterfowl management. WILDLIFE BIOLOGY 2020. [DOI: 10.2981/wlb.00668] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Bethany G. Thurber
- B. G. Thurber (https://orcid.org/0000-0002-6973-9810) ✉ , 5 Best Avenue, Dundas, ON, L9H 5Z1, Canada
| | - Christian Roy
- B. G. Thurber (https://orcid.org/0000-0002-6973-9810) ✉ , 5 Best Avenue, Dundas, ON, L9H 5Z1, Canada
| | - J. Ryan Zimmerling
- B. G. Thurber (https://orcid.org/0000-0002-6973-9810) ✉ , 5 Best Avenue, Dundas, ON, L9H 5Z1, Canada
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Zuckerberg B, Strong C, LaMontagne JM, St. George S, Betancourt JL, Koenig WD. Climate Dipoles as Continental Drivers of Plant and Animal Populations. Trends Ecol Evol 2020; 35:440-453. [DOI: 10.1016/j.tree.2020.01.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/20/2020] [Accepted: 01/27/2020] [Indexed: 12/15/2022]
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