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Ismail S, Farner J, Couper L, Mordecai E, Lyberger K. Temperature and intraspecific variation affect host-parasite interactions. Oecologia 2024; 204:389-399. [PMID: 38006450 DOI: 10.1007/s00442-023-05481-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 11/06/2023] [Indexed: 11/27/2023]
Abstract
Parasites play key roles in regulating aquatic ecosystems, yet the impact of climate warming on their ecology and disease transmission remains poorly understood. Isolating the effect of warming is challenging as transmission involves multiple interacting species and potential intraspecific variation in temperature responses of one or more of these species. Here, we leverage a wide-ranging mosquito species and its facultative parasite as a model system to investigate the impact of temperature on host-parasite interactions and disease transmission. We conducted a common garden experiment measuring parasite growth and infection rates at seven temperatures using 12 field-collected parasite populations and a single mosquito population. We find that both free-living growth rates and infection rates varied with temperature, which were highest at 18-24.5 °C and 13 °C, respectively. Further, we find intraspecific variation in peak performance temperature reflecting patterns of local thermal adaptation-parasite populations from warmer source environments typically had higher thermal optima for free-living growth rates. For infection rates, we found a significant interaction between parasite population and nonlinear effects of temperature. These findings underscore the need to consider both host and parasite thermal responses, as well as intraspecific variation in thermal responses, when predicting the impacts of climate change on disease in aquatic ecosystems.
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Affiliation(s)
- Sherine Ismail
- Department of Biology, Stanford University, Stanford, USA
| | | | - Lisa Couper
- Department of Biology, Stanford University, Stanford, USA
| | - Erin Mordecai
- Department of Biology, Stanford University, Stanford, USA
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2
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Dewenter BS, Shah AA, Hughes J, Poff NL, Thompson R, Kefford BJ. The thermal breadth of temperate and tropical freshwater insects supports the climate variability hypothesis. Ecol Evol 2024; 14:e10937. [PMID: 38405410 PMCID: PMC10891360 DOI: 10.1002/ece3.10937] [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: 08/13/2023] [Revised: 12/13/2023] [Accepted: 01/04/2024] [Indexed: 02/27/2024] Open
Abstract
Climate change involves increases in mean temperature and changes in temperature variability at multiple temporal scales but research rarely considers these temporal scales. The climate variability hypothesis (CVH) provides a conceptual framework for exploring the potential effects of annual scale thermal variability across climatic zones. The CVH predicts ectotherms in temperate regions tolerate a wider range of temperatures than those in tropical regions in response to greater annual variability in temperate regions. However, various other aspects of thermal regimes (e.g. diel variability), organisms' size and taxonomic identity are also hypothesised to influence thermal tolerance. Indeed, high temperatures in the tropics have been proposed as constraining organisms' ability to tolerate a wide range of temperatures, implying that high annual maximum temperatures would be associated with tolerating a narrow range of temperatures. We measured thermal regimes and critical thermal limits (CTmax and CTmin) of freshwater insects in the orders Ephemeroptera (mayflies), Plecoptera (stoneflies) and Trichoptera (caddisflies) along elevation gradients in streams in temperate and tropical regions of eastern Australia and tested the CVH by determining which variables were most correlated with thermal breadth (T br = CTmax - CTmin). Consistent with the CVH, T br tended to increase with increasing annual temperature range. T br also increased with body size and T br was generally wider in Plecoptera than in Ephemeroptera or Trichoptera. We also find some support for a related hypothesis, the climate extreme hypothesis (CEH), particularly for predicting upper thermal limits. We found no evidence that higher annual maximum temperature constrained individuals' abilities to tolerate a wide range of temperatures. The support for the CVH we document suggests that temperate organisms may be able to tolerate wider ranges of temperatures than tropical organisms. There is an urgent need to investigate other aspects of thermal regimes, such as diel temperature cycling and minimum temperature.
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Affiliation(s)
- Beatrice S. Dewenter
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
| | - Alisha A. Shah
- W.K. Kellogg Biological Station, Department of Integrative BiologyMichigan State UniversityEast LansingMichiganUSA
| | - Jane Hughes
- School of Environment and ScienceGriffith UniversityNathanQueenslandAustralia
| | - N. LeRoy Poff
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
- Department of BiologyColorado State UniversityFort CollinsColoradoUSA
| | - Ross Thompson
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
| | - Ben J. Kefford
- Centre for Applied Water Science, Institute for Applied EcologyUniversity of CanberraCanberraAustralian Capital TerritoryAustralia
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3
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Ismail S, Farner J, Couper L, Mordecai E, Lyberger K. Temperature and intraspecific variation affect host-parasite interactions. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.24.554680. [PMID: 37662401 PMCID: PMC10473705 DOI: 10.1101/2023.08.24.554680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Parasites play key roles in regulating aquatic ecosystems, yet the impact of climate warming on their ecology and disease transmission remains poorly understood. Isolating the effect of warming is challenging as transmission involves multiple interacting species and potential intraspecific variation in temperature responses of one or more of these species. Here, we leverage a wide-ranging mosquito species and its facultative parasite as a model system to investigate the impact of temperature on host-parasite interactions and disease transmission. We conducted a common garden experiment measuring parasite growth and infection rates at seven temperatures using 12 field-collected parasite populations and a single mosquito population. We find that both free-living growth rates and infection rates varied with temperature, which were highest at 18-24.5°C and 13°C, respectively. Further, we find intraspecific variation in peak performance temperature reflecting patterns of local thermal adaptation-parasite populations from warmer source environments typically had higher thermal optima for free-living growth rates. For infection rates, we found a significant interaction between parasite population and nonlinear effects of temperature. These findings underscore the need to consider both host and parasite thermal responses, as well as intraspecific variation in thermal responses, when predicting the impacts of climate change on disease in aquatic ecosystems.
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4
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Delva S, De Baets B, Baetens JM, De Clerck O, Stock W. No bacterial-mediated alleviation of thermal stress in a brown seaweed suggests the absence of ecological bacterial rescue effects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 876:162532. [PMID: 36870499 DOI: 10.1016/j.scitotenv.2023.162532] [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: 10/21/2022] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 06/18/2023]
Abstract
While microbiome alterations are increasingly proposed as a rapid mechanism to buffer organisms under changing environmental conditions, studies of these processes in the marine realm are lagging far behind their terrestrial counterparts. Here, we used a controlled laboratory experiment to examine whether the thermal tolerance of the brown seaweed Dictyota dichotoma, a common species in European coastal ecosystems, could be enhanced by the repeated addition of bacteria from its natural environment. Juvenile algae from three genotypes were subjected for two weeks to a temperature gradient, spanning almost the entire thermal range that can be tolerated by the species (11-30 °C). At the start of the experiment and again in the middle of the experiment, the algae were inoculated with bacteria from their natural environment or left untouched as a control. Relative growth rate was measured over the two-week period, and we assessed bacterial community composition prior to and at the end of the experiment. Since the growth of D. dichotoma over the full thermal gradient was not affected by supplementing bacteria, our results indicate no scope for bacterial-mediated stress alleviation. The minimal changes in the bacterial communities linked to bacterial addition, particularly at temperatures above the thermal optimum (22-23 °C), suggest the existence of a barrier to bacterial recruitment. These findings indicate that ecological bacterial rescue is unlikely to play a role in mitigating the effects of ocean warming on this brown seaweed.
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Affiliation(s)
- Soria Delva
- Phycology Research Group, Department of Biology, Ghent University, Krijgslaan 281-S8, 9000 Ghent, Belgium; Research Unit Knowledge-Based Systems (KERMIT), Department of Data Analysis and Mathematical Modelling, Ghent University, Coupure links 653, 9000 Ghent, Belgium.
| | - Bernard De Baets
- Research Unit Knowledge-Based Systems (KERMIT), Department of Data Analysis and Mathematical Modelling, Ghent University, Coupure links 653, 9000 Ghent, Belgium.
| | - Jan M Baetens
- Research Unit Knowledge-Based Systems (KERMIT), Department of Data Analysis and Mathematical Modelling, Ghent University, Coupure links 653, 9000 Ghent, Belgium.
| | - Olivier De Clerck
- Phycology Research Group, Department of Biology, Ghent University, Krijgslaan 281-S8, 9000 Ghent, Belgium.
| | - Willem Stock
- Phycology Research Group, Department of Biology, Ghent University, Krijgslaan 281-S8, 9000 Ghent, Belgium.
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Cicchino AS, Ghalambor CK, Funk WC. Linking critical thermal maximum to mortality from thermal stress in a cold-water frog. Biol Lett 2023; 19:20230106. [PMID: 37311548 PMCID: PMC10264101 DOI: 10.1098/rsbl.2023.0106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 05/22/2023] [Indexed: 06/15/2023] Open
Abstract
Estimates of organismal thermal tolerance are frequently used to assess physiological risk from warming, yet the assumption that these estimates are predictive of mortality has been called into question. We tested this assumption in the cold-water-specialist frog, Ascaphus montanus. For seven populations, we used dynamic experimental assays to measure tadpole critical thermal maximum (CTmax) and measured mortality from chronic thermal stress for 3 days at different temperatures. We tested the relationship between previously estimated population CTmax and observed mortality, as well as the strength of CTmax as a predictor of mortality compared to local stream temperatures capturing varying timescales. Populations with higher CTmax experienced significantly less mortality in the warmest temperature treatment (25°C). We also found that population CTmax outperformed stream temperature metrics as the top predictor of observed mortality. These results demonstrate a clear link between CTmax and mortality from thermal stress, contributing evidence that CTmax is a relevant metric for physiological vulnerability assessments.
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Affiliation(s)
- Amanda S. Cicchino
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO 80523, USA
- Department of Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Cameron K. Ghalambor
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO 80523, USA
- Department of Biology, Colorado State University, Fort Collins, CO 80523, USA
- Department of Biology, Centre for Biodiversity Dynamics (CBD), Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway
| | - W. Chris Funk
- Graduate Degree Program in Ecology, Colorado State University, Fort Collins, CO 80523, USA
- Department of Biology, Colorado State University, Fort Collins, CO 80523, USA
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Graça D, Fernandes I, Cássio F, Pascoal C. Eco-physiological Responses of Aquatic Fungi to Three Global Change Stressors Highlight the Importance of Intraspecific Trait Variability. MICROBIAL ECOLOGY 2023; 85:1215-1225. [PMID: 35415771 DOI: 10.1007/s00248-022-02007-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 03/30/2022] [Indexed: 05/10/2023]
Abstract
Anthropogenic change at a global scale is affecting life on Earth with impacts on freshwaters. Aquatic hyphomycetes are fungi that drive organic matter decomposition in freshwaters and mediate energy transfer to higher trophic levels. Intraspecific trait variability affects ecological processes and can account for species adaptations to environmental change. To ascertain how aquatic hyphomycetes respond to global change related stressors, we selected 20 strains (7 species), based on their co-occurrence in streams and phylogenetic relatedness. We measured fungal growth rates at different temperatures (7 levels), nutrient concentrations (6 levels) and medium moisture (6 levels). Our results indicate that all stressors affected fungal growth, and responses to nutrient enrichment and moisture were strain specific. Fungal responses to the stressors were not explained by their phylogenetic relatedness. In the absence of stressors, interspecific diversity best explained the variance in fungal traits, while the increase in the stress gradient increased the importance of intraspecific diversity.
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Affiliation(s)
- Diana Graça
- Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
| | - Isabel Fernandes
- Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Fernanda Cássio
- Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Cláudia Pascoal
- Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
- Institute of Science and Innovation for Bio-Sustainability, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
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7
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Fernandes JF, Calado R, Jerónimo D, Madeira D. Thermal tolerance limits and physiological traits as indicators of Hediste diversicolor's acclimation capacity to global and local change drivers. J Therm Biol 2023; 114:103577. [PMID: 37263039 DOI: 10.1016/j.jtherbio.2023.103577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 04/08/2023] [Accepted: 04/15/2023] [Indexed: 06/03/2023]
Abstract
Global projections predict significant increases in ocean temperature and changes in ocean chemistry, including salinity variations by 2100. This has led to a substantial interest in the study of thermal ecophysiology, as temperature is a major factor shaping marine ectotherm communities. However, responses to temperature may be influenced by other factors such as salinity, highlighting the relevance of multiple stressor studies. In the present work, we experimentally evaluated the thermal tolerance of the marine ragworm Hediste diversicolor under predicted global change scenarios. Organisms were subjected to an experimental trial under control (24 °C), and two temperature treatment scenarios (ocean warming +3 °C - (27 °C) and heat wave +6 °C - (30 °C)), combined with salinity variations (20 and 30) in a full factorial design for 29 days. Environmental data from the field were collected during 2019 and 2020. At day 30 post exposure, upper thermal limits (Critical Thermal Maximum - CTMax), thermal safety margins (TSM) and acclimation capacity were measured. Higher acclimation temperatures led to higher thermal tolerance limits, confirming that H. diversicolor features some physiological plasticity, acclimation capacity and a positive thermal safety margin. This margin was greater considering in situ temperature data from 2019 than maximum temperatures for 2020 (CTMax > maximum habitat temperature-MHT). Moreover, smaller organisms displayed higher upper thermal limits suggesting that thermal tolerance is size dependent. Ragworms subjected to higher salinity also showed a higher CTMax than those acclimated to lower salinity. However, temperature and salinity showed an additive effect on CTMax, as no significant interaction was detected. We conclude that H. diversicolor can easily acclimate to increased water temperature, independently of salinity variations. Given the key role of ragworms in food webs in estuaries and coastal lagoons, substrate bioturbation and aquaculture, this information is relevant to support conservation actions, optimize culture protocols and identify thermal resistant strains.
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Affiliation(s)
- Joana Filipa Fernandes
- ECOMARE - Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal.
| | - Ricardo Calado
- ECOMARE - Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - Daniel Jerónimo
- ECOMARE - Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal
| | - Diana Madeira
- ECOMARE - Laboratory for Innovation and Sustainability of Marine Biological Resources, CESAM - Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Estrada do Porto de Pesca Costeira, 3830-565, Gafanha da Nazaré, Portugal; UCIBIO, Applied Molecular Biosciences Unit, Department of Chemistry, Faculty of Sciences and Technology, NOVA University of Lisbon, 2829-516, Caparica, Portugal.
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8
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Pio Caetano Machado L, de Oliveira Caetano GH, Lacerda Cavalcante VH, B. Miles D, Rinaldi Colli G. Climate change shrinks environmental suitability for a viviparous
N
eotropical skink. CONSERVATION SCIENCE AND PRACTICE 2023. [DOI: 10.1111/csp2.12895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Affiliation(s)
| | - Gabriel Henrique de Oliveira Caetano
- Jacob Blaustein Center for Scientific Cooperation The Jacob Blaustein Institutes for Desert Research, Ben‐Gurion University of the Negev Midreshet Ben‐Gurion Israel
| | | | - Donald B. Miles
- Department of Biological Sciences and Ohio Center for Ecological and Evolutionary Studies Ohio University Athens Ohio USA
| | - Guarino Rinaldi Colli
- University of Brasília, Institute of Biological Sciences Brasília Distrito Federal Brazil
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9
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Wenda C, Gaitán-Espitia JD, Solano-Iguaran JJ, Nakamura A, Majcher BM, Ashton LA. Heat tolerance variation reveals vulnerability of tropical herbivore-parasitoid interactions to climate change. Ecol Lett 2023; 26:278-290. [PMID: 36468222 DOI: 10.1111/ele.14150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/24/2022] [Accepted: 11/09/2022] [Indexed: 12/12/2022]
Abstract
Assessing the heat tolerance (CTmax) of organisms is central to understand the impact of climate change on biodiversity. While both environment and evolutionary history affect CTmax, it remains unclear how these factors and their interplay influence ecological interactions, communities and ecosystems under climate change. We collected and reared caterpillars and parasitoids from canopy and ground layers in different seasons in a tropical rainforest. We tested the CTmax and Thermal Safety Margins (TSM) of these food webs with implications for how species interactions could shift under climate change. We identified strong influence of phylogeny in herbivore-parasitoid community heat tolerance. The TSM of all insects were narrower in the canopy and parasitoids had lower heat tolerance compared to their hosts. Our CTmax-based simulation showed higher herbivore-parasitoid food web instability under climate change than previously assumed, highlighting the vulnerability of parasitoids and related herbivore control in tropical rainforests, particularly in the forest canopy.
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Affiliation(s)
- Cheng Wenda
- School of Ecology, Sun Yat-Sen University, Shenzhen, China.,State Key Laboratory of Biological Control, Sun Yat-sen University, Guangzhou, China
| | - Juan Diego Gaitán-Espitia
- SWIRE Institute of Marine Sciences, School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Jaiber J Solano-Iguaran
- Departamento de Salud Hidrobiológica, División de Investigación en Acuicultura, Instituto de Fomento Pesquero, Puerto Montt, Chile
| | - Akihiro Nakamura
- CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Mengla, China
| | - Bartosz M Majcher
- Ecology and Biodiversity Area, School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
| | - Louise A Ashton
- Ecology and Biodiversity Area, School of Biological Sciences, The University of Hong Kong, Hong Kong SAR, China
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10
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Cardona-Botero VE, Lara-Reséndiz RA, Woolrich-Piña GA, Pineda E, Lira-Noriega A, Gadsden H. Seasonal and elevational variation in thermal ecology of the crevice-dwelling knob-scaled lizard Xenosaurus fractus from central-eastern Mexico. J Therm Biol 2023; 112:103432. [PMID: 36796888 DOI: 10.1016/j.jtherbio.2022.103432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 11/22/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
There is strong covariation between the thermal physiology of ectothermic animals and their thermal environment. Spatial and temporal differences in the thermal environment across a species' range may result in changes in thermal preferences between populations of that species. Alternatively, thermoregulatory-based microhabitat selection can allow individuals to maintain similar body temperatures across a broad thermal gradient. Which strategy a species adopts is often dependent on taxon-specific levels of physiological conservatism or ecological context. Identifying which strategies species use in response to spatial and temporal variation in environmental temperatures requires empirical evidence, which then can support predictions as to how a species might respond to a changing climate. Here we present findings of our analyses of the thermal quality, thermoregulatory accuracy and efficiency for the lizard, Xenosaurus fractus, across an elevation-thermal gradient and over the temporal thermal variation associated with seasonal changes. Xenosaurus fractus is a strict crevice-dweller, a habitat that can buffer this lizard from extreme temperatures and is a thermal conformer (body temperatures reflect air and substrate temperatures). We found populations of this species differed in their thermal preferences along an elevation gradient and between seasons. Specifically, we found that habitat thermal quality, thermoregulatory accuracy and efficiency (all measures of how well the lizards' body temperatures compared to their preferred body temperatures) varied along thermal gradients and with season. Our findings indicate that this species has adapted to local conditions and shows seasonal flexibility in those spatial adaptations. Along with their strict crevice-dwelling habitat, these adaptations may provide some protection against a warming climate.
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Affiliation(s)
- Victoria E Cardona-Botero
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología A.C., Carretera Antigua a Coatepec 351, Col. El Haya, CP 91073, Xalapa, Veracruz, Mexico.
| | - Rafael A Lara-Reséndiz
- Universidad Nacional de Córdoba, Facultad de Ciencias Exactas, Físicas y Naturales, Centro de Zoología Aplicada and Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Diversidad y Ecología Animal, Córdoba, Argentina; Departamento de Ciencias del Agua y Medio Ambiente, Instituto Tecnológico de Sonora, Ciudad Obregón, Sonora, Mexico
| | - Guillermo A Woolrich-Piña
- Tecnológico Nacional de México campus Zacapoaxtla. Subdirección de Investigación y Posgrado, División de Biología, Carretera Acuaco-Zacapoaxtla Km. 8, Col. Totoltepec, C. P. 73680, Zacapoaxtla, Puebla, Mexico
| | - Eduardo Pineda
- Red de Biología y Conservación de Vertebrados, Instituto de Ecología A.C., Carretera Antigua a Coatepec 351, Col. El Haya, CP 91073, Xalapa, Veracruz, Mexico
| | - Andrés Lira-Noriega
- CONACYT Research Fellow, Red de Estudios Moleculares Avanzados, Instituto de Ecología A.C., Carretera Antigua a Coatepec 351, Col. El Haya, CP 91070, Xalapa, Veracruz, Mexico
| | - Héctor Gadsden
- Instituto de Ecología, A. C.-Centro Regional del Bajío, Av. Lázaro Cárdenas 253, A. P. 386, C. P. 61600, Pátzcuaro, Michoacán, Mexico; Lindale St. s/n, Abbotsford, British Columbia, Canada
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11
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Novel physiological data needed for progress in global change ecology. Basic Appl Ecol 2023. [DOI: 10.1016/j.baae.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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12
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Brusch GA, Le Galliard J, Viton R, Gavira RSB, Clobert J, Lourdais O. Reproducing in a changing world: combined effects of thermal conditions by day and night and of water constraints during pregnancy in a cold‐adapted ectotherm. OIKOS 2022. [DOI: 10.1111/oik.09536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- George A. Brusch
- Biological Sciences, California State Univ. San Marcos San Marcos CA USA
| | - Jean‐François Le Galliard
- Sorbonne Univ., CNRS, IRD, INRAe, Inst. d'Écologie et des Sciences de l'Environnement (IEES) Paris Cedex 5 France
- Ecole Normale Supérieure, PSL Univ., Dépt de Biologie, CNRS, UMS 3194, Centre de Recherche en Écologie Expérimentale et Prédictive (CEREEP‐Ecotron IleDeFrance) Saint‐Pierre‐lès‐Nemours France
| | - Robin Viton
- Centre d'Etudes Biologiques de Chizé, CNRS Villiers en Bois France
| | | | - Jean Clobert
- Station d'Ecologie Théorique et Expérimentale de Moulis, CNRS, UMR 5321 Saint Girons France
| | - Olivier Lourdais
- Centre d'Etudes Biologiques de Chizé, CNRS Villiers en Bois France
- School of Life Sciences, Arizona State Univ. Tempe AZ USA
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13
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Coast O, Posch BC, Rognoni BG, Bramley H, Gaju O, Mackenzie J, Pickles C, Kelly AM, Lu M, Ruan YL, Trethowan R, Atkin OK. Wheat photosystem II heat tolerance: evidence for genotype-by-environment interactions. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:1368-1382. [PMID: 35781899 DOI: 10.1111/tpj.15894] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/24/2022] [Accepted: 06/28/2022] [Indexed: 06/15/2023]
Abstract
High temperature stress inhibits photosynthesis and threatens wheat production. One measure of photosynthetic heat tolerance is Tcrit - the critical temperature at which incipient damage to photosystem II (PSII) occurs. This trait could be improved in wheat by exploiting genetic variation and genotype-by-environment interactions (GEI). Flag leaf Tcrit of 54 wheat genotypes was evaluated in 12 thermal environments over 3 years in Australia, and analysed using linear mixed models to assess GEI effects. Nine of the 12 environments had significant genetic effects and highly variable broad-sense heritability (H2 ranged from 0.15 to 0.75). Tcrit GEI was variable, with 55.6% of the genetic variance across environments accounted for by the factor analytic model. Mean daily growth temperature in the month preceding anthesis was the most influential environmental driver of Tcrit GEI, suggesting biochemical, physiological and structural adjustments to temperature requiring different durations to manifest. These changes help protect or repair PSII upon exposure to heat stress, and may improve carbon assimilation under high temperature. To support breeding efforts to improve wheat performance under high temperature, we identified genotypes superior to commercial cultivars commonly grown by farmers, and demonstrated potential for developing genotypes with greater photosynthetic heat tolerance.
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Affiliation(s)
- Onoriode Coast
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- Natural Resources Institute, University of Greenwich, Central Avenue, Chatham Maritime, Kent, ME4 4TB, UK
- School of Environmental and Rural Sciences, Faculty of Science Agriculture Business and Law, University of New England, Armidale, NSW, 2351, Australia
| | - Bradley C Posch
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Bethany G Rognoni
- Department of Agriculture and Fisheries, Leslie Research Facility, Toowoomba, QLD, 4350, Australia
| | - Helen Bramley
- School of Life and Environmental Sciences, Plant Breeding Institute, Sydney Institute of Agriculture, The University of Sydney, Narrabri, NSW, 2390, Australia
| | - Oorbessy Gaju
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- Lincoln Institute of Agri-Food Technology, University of Lincoln, Riseholme Park, Lincoln, Lincolnshire, LN2 2LG, UK
| | - John Mackenzie
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Claire Pickles
- Birchip Cropping Group, 73 Cumming Avenue, Birchip, VIC, 3483, Australia
| | - Alison M Kelly
- Department of Agriculture and Fisheries, Leslie Research Facility, Toowoomba, QLD, 4350, Australia
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Toowoomba, QLD, 4350, Australia
| | - Meiqin Lu
- Australian Grain Technologies, 12656 Newell Highway, Narrabri, NSW, 2390, Australia
| | - Yong-Ling Ruan
- Division of Plant Sciences, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Richard Trethowan
- School of Life and Environmental Sciences, Plant Breeding Institute, Sydney Institute of Agriculture, The University of Sydney, Narrabri, NSW, 2390, Australia
- School of Life and Environmental Sciences, Plant Breeding Institute, Sydney Institute of Agriculture, The University of Sydney, Cobbitty, NSW, 2570, Australia
| | - Owen K Atkin
- ARC Centre of Excellence in Plant Energy Biology, Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
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14
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Clifton IT, Refsnider JM. Temporal climatic variability predicts thermal tolerance in two sympatric lizard species. J Therm Biol 2022; 108:103291. [DOI: 10.1016/j.jtherbio.2022.103291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 05/31/2022] [Accepted: 06/29/2022] [Indexed: 10/17/2022]
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15
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Lancaster LT. On the macroecological significance of eco-evolutionary dynamics: the range shift-niche breadth hypothesis. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210013. [PMID: 35067095 PMCID: PMC8784922 DOI: 10.1098/rstb.2021.0013] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Global correlations of range size and niche breadth, and their relationship to latitude, have long intrigued ecologists and biogeographers. Study of these patterns has given rise to a number of hypothesized ecological and evolutionary processes purported to shape biogeographic outcomes, including the climate variability hypothesis, oscillation hypothesis, ecological opportunity, competitive release and taxon cycles. Here, I introduce the alternative range shift-niche breadth hypothesis, which posits that broader niches and larger range sizes are jointly determined under eco-evolutionary processes unique to expanding ranges, which may or may not be adaptive, but which co-shape observed latitudinal gradients in niche breadth and range size during periods of widespread range expansion. I formulate this hypothesis in comparison against previous hypotheses, exploring how each relies on equilibrium versus non-equilibrium evolutionary processes, faces differing issues of definition and scale, and results in alternative predictions for comparative risk and resilience of global ecosystems. Such differences highlight that accurate understanding of process is critical when applying macroecological insight to biodiversity forecasting. Furthermore, past conceptual emphasis on a central role of local adaptation under equilibrium conditions may have obscured a ubiquitous role of non-equilibrium evolutionary processes for generating many important, regional and global macroecological patterns. This article is part of the theme issue 'Species' ranges in the face of changing environments (part I)'.
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Affiliation(s)
- Lesley T Lancaster
- School of Biological Sciences, University of Aberdeen, Aberdeen AB24 2TZ, UK
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16
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Doan TM, Markham S, Gregory A, Broadwater CO, Floyd A, Goldberg MJ, Calder B. Hot Lizards: Testing the Tolerance to Climate Warming of Thermoconformers in the Andes (Squamata: Gymnophthalmidae). ICHTHYOLOGY & HERPETOLOGY 2022. [DOI: 10.1643/h2021059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Tiffany M. Doan
- Division of Natural Sciences, New College of Florida, 5800 Bay Shore Road, Sarasota, Florida 34243; (TMD) . Send reprint requests to TMD
| | - Sawyer Markham
- Division of Natural Sciences, New College of Florida, 5800 Bay Shore Road, Sarasota, Florida 34243; (TMD) . Send reprint requests to TMD
| | - Anastasia Gregory
- Division of Natural Sciences, New College of Florida, 5800 Bay Shore Road, Sarasota, Florida 34243; (TMD) . Send reprint requests to TMD
| | - Carson O. Broadwater
- Division of Natural Sciences, New College of Florida, 5800 Bay Shore Road, Sarasota, Florida 34243; (TMD) . Send reprint requests to TMD
| | - Abigail Floyd
- Division of Natural Sciences, New College of Florida, 5800 Bay Shore Road, Sarasota, Florida 34243; (TMD) . Send reprint requests to TMD
| | - Matthew J. Goldberg
- Division of Natural Sciences, New College of Florida, 5800 Bay Shore Road, Sarasota, Florida 34243; (TMD) . Send reprint requests to TMD
| | - Bryton Calder
- Division of Natural Sciences, New College of Florida, 5800 Bay Shore Road, Sarasota, Florida 34243; (TMD) . Send reprint requests to TMD
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17
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Braschler B, Chown SL, Duffy GA. Sub-critical limits are viable alternatives to critical thermal limits. J Therm Biol 2021; 101:103106. [PMID: 34879920 DOI: 10.1016/j.jtherbio.2021.103106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 09/02/2021] [Accepted: 09/17/2021] [Indexed: 01/05/2023]
Abstract
Thermal traits are frequently used to explain variation in species distributions, abundance, and sensitivity to climate change. Due to their utility and ease of measurement, critical thermal limits in particular have proliferated across the ecophysiological literature. Critical limit assays can, however, have deleterious or even lethal effects on individuals and there is growing recognition that intermediate metrics of performance can provide a further, nuanced understanding of how species interact with their environments. Meanwhile, the scarcity of data describing sub-critical or voluntary limits, which have been proposed as alternatives to critical limits and can be collected under less extreme conditions, reduces their value in comparative analyses and broad-scale syntheses. To overcome these limitations and determine if sub-critical limits are viable proxies for upper and lower critical thermal limits we measured and compared the critical and sub-critical thermal limits of 2023 ants representing 51 species. Sub-critical limits in isolation were a satisfactory linear predictor for both individual and species critical limits and when species identity was also considered there were substantial gains in variance explained. These gains indicate that a species-specific conversion factor can further improve estimates of critical traits using sub-critical proxies. Sub-critical limits can, therefore, be integrated into broader syntheses of critical limits and confidently used to calculate common ecological metrics, such as warming tolerance, so long as uncertainty in estimates is explicitly acknowledged. Although lower thermal traits exhibited more variation than their upper counterparts, the stronger phylogenetic signal of lower thermal traits indicates that appropriate conversions for lower thermal traits can be inferred from congenerics or other closely related taxa.
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Affiliation(s)
- Brigitte Braschler
- Section of Conservation Biology, Department of Environmental Sciences, University of Basel, St. Johanns-Vorstadt 10, CH-4056, Basel, Switzerland; DSI-NRF Centre of Excellence for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Private Bag X1, Matieland, 7602, South Africa
| | - Steven L Chown
- School of Biological Sciences, Monash University, Victoria, 3800, Australia
| | - Grant A Duffy
- School of Biological Sciences, Monash University, Victoria, 3800, Australia.
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18
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Duffy GA, Kuyucu AC, Hoskins JL, Hay EM, Chown SL. Adequate sample sizes for improved accuracy of thermal trait estimates. Funct Ecol 2021. [DOI: 10.1111/1365-2435.13928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Grant A. Duffy
- School of Biological Sciences Monash University Clayton Vic. Australia
| | - Arda C. Kuyucu
- Department of Biology Hacettepe University Ankara Turkey
| | | | - Eleanor M. Hay
- School of Biological Sciences Monash University Clayton Vic. Australia
| | - Steven L. Chown
- School of Biological Sciences Monash University Clayton Vic. Australia
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19
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Wu J. The risk of forfeiting the ranges of reptiles under nonrandom and stochastic scenarios of moving climate conditions: a case study for 115 species in China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:51511-51529. [PMID: 33982261 DOI: 10.1007/s11356-021-14247-0] [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: 10/02/2020] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
Revealing the hazard features of forfeiting areal ranges for nonidentical scenarios of shifting climatic conditions is pivotal for the conformation of reptiles to climatic warming. Taking 115 reptiles in China as an example, the indefiniteness and danger of shrinking geographical range for the reptiles under stochastic and nonrandom scenarios of moving climatic situations were inspected via exploiting the scenarios of shifting climatic status associated with the representative concentration pathways, Monte Carlo simulation, and the classifications scheme based on the fuzzy set. For non-stochastic states of altering climatic elements, the richness of 115 reptiles improved in certain sites of northeastern, and western China and dropped in several areas of northern, eastern, central China, and southeastern China: roughly 59-74 reptiles forfeiting less than 20% of their present ranges, roughly 25-34 reptiles narrowing less than 20-40% of their present areal ranges, and roughly 105-111 reptiles inhabited more than 80% of their overall areal ranges. For the random status of shifting climatic elements, the count of reptiles that forfeited the various extent of the present or entire areal ranges descended with raising the eventuality; with a possibility of over 0.6, the count of reptiles that minified less than 20%, 20-40%, 40-60%, 60-80% and over 80% of the present ranges was roughly 28-49, 5-10, 1-3, 0-1 and 13-18, separately; the count of reptiles that inhabited below 20%, 20-40%, 40-60%, 60-80% and more than 80% of the entire real ranges was roughly 0-1, 5-6, 1-5, 0-2 and 35-36, separately. About 30% of 115 reptiles would face disappearance danger in response to moving climate conditions in the absence of adaption steps, and the conformation measures were indispensable for the reptiles that shrunk their areas.
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Affiliation(s)
- Jianguo Wu
- The Institute of Environmental Ecology, Chinese Research Academy of Environmental Sciences, No 8, Da Yang Fang, Beiyuan, Anwai, Chaoyang District, Beijing, 100012, China.
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20
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Clusella-Trullas S, Garcia RA, Terblanche JS, Hoffmann AA. How useful are thermal vulnerability indices? Trends Ecol Evol 2021; 36:1000-1010. [PMID: 34384645 DOI: 10.1016/j.tree.2021.07.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 06/23/2021] [Accepted: 07/06/2021] [Indexed: 10/20/2022]
Abstract
To forecast climate change impacts across habitats or taxa, thermal vulnerability indices (e.g., safety margins and warming tolerances) are growing in popularity. Here, we present their history, context, formulation, and current applications. We highlight discrepancies in terminology and usage, and we draw attention to key assumptions underpinning the main indices and to their ecological and evolutionary relevance. In the process, we flag biases influencing these indices that are not always evaluated. These biases affect both components of index formulations, namely: (i) the characterisation of the thermal environment; and (ii) an organism's physiological and behavioural responses to more frequent and severe warming. Presently, many outstanding questions weaken a thermal vulnerability index approach. We describe ways to validate vulnerability index applications and outline issues to be considered in further developing these indices.
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Affiliation(s)
| | - Raquel A Garcia
- Department of Botany & Zoology, Stellenbosch University, Stellenbosch, South Africa
| | - John S Terblanche
- Department of Conservation Ecology & Entomology, Stellenbosch University, Stellenbosch, South Africa
| | - Ary A Hoffmann
- School of BioSciences, Bio21 Institute, University of Melbourne, Melbourne, Australia
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21
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Taheri S, Naimi B, Rahbek C, Araújo MB. Improvements in reports of species redistribution under climate change are required. SCIENCE ADVANCES 2021; 7:eabe1110. [PMID: 33827813 PMCID: PMC8026129 DOI: 10.1126/sciadv.abe1110] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 02/11/2021] [Indexed: 05/13/2023]
Abstract
Studies have documented climate change-induced shifts in species distributions but uncertainties associated with data and methods are typically unexplored. We reviewed 240 reports of climate-related species-range shifts and classified them based on three criteria. We ask whether observed distributional shifts are compared against random expectations, whether multicausal factors are examined on equal footing, and whether studies provide sufficient documentation to enable replication. We found that only ~12.1% of studies compare distributional shifts across multiple directions, ~1.6% distinguish observed patterns from random expectations, and ~19.66% examine multicausal factors. Last, ~75.5% of studies report sufficient data and results to allow replication. We show that despite gradual improvements over time, there is scope for raising standards in data and methods within reports of climate-change induced shifts in species distribution. Accurate reporting is important because policy responses depend on them. Flawed assessments can fuel criticism and divert scarce resources for biodiversity to competing priorities.
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Affiliation(s)
- Shirin Taheri
- Department of Biogeography and Global Change, National Museum of Natural Sciences, CSIC, Calle Jose Gutierrez Abascal, 2, 28006 Madrid, Spain.
- Departamento de Biología y Geología, Física y Química Inorgánica, Área de Biodiversidad y Conservación, Escuela Superior de Ciencias Experimentales y Tecnología, Universidad Rey Juan Carlos, c/Tulipán s/n, Móstoles 28933, Spain
| | - Babak Naimi
- Department of Geosciences and Geography, University of Helsinki, P.O. Box 64, 00014 Helsinki, Finland
| | - Carsten Rahbek
- Center for Macroecology, Evolution and Climate, GLOBE Institute, University of Copenhagen, DK-2100 Copenhagen, Denmark
- Danish Institute for Advanced Study, University of Southern Denmark, 5230 Odense M, Denmark
- Institute of Ecology, Peking University, Beijing 100871, China
| | - Miguel B Araújo
- Department of Biogeography and Global Change, National Museum of Natural Sciences, CSIC, Calle Jose Gutierrez Abascal, 2, 28006 Madrid, Spain.
- Rui Nabeiro Biodiversity Chair, MED Institute, University of Évora, Largo dos Colegiais, 7000 Évora, Portugal
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22
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Crawford RD, O'Keefe JM. Avoiding a conservation pitfall: Considering the risks of unsuitably hot bat boxes. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.412] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Reed D. Crawford
- Department of Natural Resources and Environmental Sciences University of Illinois at Urbana‐Champaign Illinois USA
- Program in Ecology, Evolution, and Conservation Biology University of Illinois at Urbana‐Champaign Illinois USA
| | - Joy M. O'Keefe
- Department of Natural Resources and Environmental Sciences University of Illinois at Urbana‐Champaign Illinois USA
- Program in Ecology, Evolution, and Conservation Biology University of Illinois at Urbana‐Champaign Illinois USA
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23
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Fan XL, Lin ZH, Scheffers BR. Physiological, developmental, and behavioral plasticity in response to thermal acclimation. J Therm Biol 2021; 97:102866. [PMID: 33863430 DOI: 10.1016/j.jtherbio.2021.102866] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/13/2021] [Accepted: 01/24/2021] [Indexed: 11/28/2022]
Abstract
Organisms with complex ecologies and life-cycle processes may shift physiologically (acclimation in tolerance), developmentally, and/or behaviorally (thermoregulation) in response to changes in climate. As such, climate change may trigger multiple, interacting phenotypic responses, which underscores the nuances of characterizing a species capacity to adapt and respond to climate change. In this study, we use a model frog species, Bufo gargarizans, to examine how three phenotypes, thermal tolerance limits (critical thermal minimum, CTmin and critical thermal maximum, CTmax), ontogeny, and behavioral preferences in temperature (Tpref) respond to different levels of thermal exposure (i.e., acclimation ranging from 10 °C to 30 °C). Acclimation temperature had little effect on Tpref of tadpoles, yet behaviorally they showed strong signs of thermal selection towards an optimum. Both CTmin and CTmax increased with acclimation temperature with an approximate 10% increase in tolerance limits per 1 °C increase in exposure. Development and body size both responded to acclimation temperature, both of which also influenced lower but not upper thermal limits. Our study highlights the idiosyncrasies of estimating climate vulnerability, where multiple phenotypes can respond to shifts in temperature-a complexity that is especially apparent in species with complex life-cycles.
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Affiliation(s)
- Xiao L Fan
- Department of Ecology and Biological Resources, Lishui University, LS, 323000, China
| | - Zhi H Lin
- Department of Ecology and Biological Resources, Lishui University, LS, 323000, China
| | - Brett R Scheffers
- Department of Wildlife Ecology and Conservation, University of Florida, Gainesville, FL, 32611, USA.
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24
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Katzenberger M, Duarte H, Relyea R, Beltrán JF, Tejedo M. Variation in upper thermal tolerance among 19 species from temperate wetlands. J Therm Biol 2021; 96:102856. [PMID: 33627284 DOI: 10.1016/j.jtherbio.2021.102856] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 01/05/2021] [Accepted: 01/12/2021] [Indexed: 12/21/2022]
Abstract
Communities usually possess a multitude of interconnected trophic interactions within food webs. Their regulation generally depends on a balance between bottom-up and top-down effects. However, if sensitivity to temperature varies among species, rising temperatures may change trophic interactions via direct and indirect effects. We examined the critical thermal maximum (CTmax) of 19 species from temperate wetlands (insect predators, amphibian larvae, zooplankton and amphipods) and determined if they vary in their sensitivity to warming temperatures. CTmax differed between the groups, with predatory insects having higher CTmax than amphibians (both herbivorous larval anurans and predatory larval salamanders), amphipods and zooplankton. In a scenario of global warming, these differences in thermal tolerance may affect top-down and bottom-up processes, particularly considering that insect predators are more likely to maintain or improve their performance at higher temperatures, which could lead to increased predation rates on the herbivores in the food web. Further studies are needed to understand how the energy flows through communities, how species' energy budgets may change and whether other physiological and behavioral responses (such as phenotypic plasticity and thermoregulation) can buffer or increase these changes in the top-down regulation of wetland food webs.
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Affiliation(s)
- Marco Katzenberger
- Department of Evolutionary Ecology, Estación Biológica Doñana, CSIC, c/ Américo Vespucio s/n, 41092, Sevilla, Spain; Laboratório de Bioinformática e Biologia Evolutiva, Department of Genetics, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego, 1235 - Cidade Universitária, CEP 50670-901, Recife, Pernambuco, Brazil.
| | - Helder Duarte
- Department of Evolutionary Ecology, Estación Biológica Doñana, CSIC, c/ Américo Vespucio s/n, 41092, Sevilla, Spain
| | - Rick Relyea
- Darrin Fresh Water Institute, Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY, 12180, USA; Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Juan Francisco Beltrán
- Departament of Zoology, Universidad de Sevilla, Avda. Reina Mercedes s/n, 41012, Sevilla, Spain
| | - Miguel Tejedo
- Department of Evolutionary Ecology, Estación Biológica Doñana, CSIC, c/ Américo Vespucio s/n, 41092, Sevilla, Spain
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25
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Matos M, Simões P, Fragata I, Quina AS, Kristensen TN, Santos M. Editorial: Coping With Climate Change: A Genomic Perspective on Thermal Adaptation. Front Genet 2021; 11:619441. [PMID: 33519921 PMCID: PMC7838599 DOI: 10.3389/fgene.2020.619441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/15/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- Margarida Matos
- cE3c - Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Pedro Simões
- cE3c - Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Inês Fragata
- cE3c - Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Ana Sofia Quina
- CESAM, Centre for Environmental and Marine Studies, Universidade de Aveiro and Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
| | - Torsten Nygaard Kristensen
- Section of Biology and Environmental Science, Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | - Mauro Santos
- Departament de Genètica i de Microbiologia, Grup de Genòmica, Bioinformàtica i Biologia Evolutiva (GBBE), Universitat Autònoma de Barcelona, Barcelona, Spain
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26
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Sanabria EA, González E, Quiroga LB, Tejedo M. Vulnerability to warming in a desert amphibian tadpole community: the role of interpopulational variation. J Zool (1987) 2020. [DOI: 10.1111/jzo.12850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- E. A. Sanabria
- Instituto de Ciencias Básicas Facultad de Filosofía Humanidades y Artes Universidad Nacional de San Juan San Juan Argentina
- Facultad de Ciencias Exactas y Naturales Universidad Nacional de Cuyo Mendoza Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) La Plata Argentina
| | - E. González
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) La Plata Argentina
- Museo de La Plata Universidad Nacional de La Plata La Plata Argentina
| | - L. B. Quiroga
- Instituto de Ciencias Básicas Facultad de Filosofía Humanidades y Artes Universidad Nacional de San Juan San Juan Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) La Plata Argentina
| | - M. Tejedo
- Departamento de Ecología Evolutiva Estación Biológica de Doñana CSIC Sevilla Spain
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27
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Herrando-Pérez S, Belliure J, Ferri-Yáñez F, van den Burg MP, Beukema W, Araújo MB, Terblanche JS, Vieites DR. Water deprivation drives intraspecific variability in lizard heat tolerance. Basic Appl Ecol 2020. [DOI: 10.1016/j.baae.2020.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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28
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Bodensteiner BL, Agudelo‐Cantero GA, Arietta AZA, Gunderson AR, Muñoz MM, Refsnider JM, Gangloff EJ. Thermal adaptation revisited: How conserved are thermal traits of reptiles and amphibians? JOURNAL OF EXPERIMENTAL ZOOLOGY PART 2020; 335:173-194. [DOI: 10.1002/jez.2414] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/17/2020] [Accepted: 09/04/2020] [Indexed: 12/31/2022]
Affiliation(s)
- Brooke L. Bodensteiner
- Department of Ecology and Evolutionary Biology Yale University New Haven Connecticut USA
| | - Gustavo A. Agudelo‐Cantero
- Department of Physiology, Institute of Biosciences University of São Paulo São Paulo Brazil
- Department of Biology ‐ Genetics, Ecology, and Evolution Aarhus University Aarhus Denmark
| | | | - Alex R. Gunderson
- Department of Ecology and Evolutionary Biology Tulane University New Orleans Louisiana USA
| | - Martha M. Muñoz
- Department of Ecology and Evolutionary Biology Yale University New Haven Connecticut USA
| | | | - Eric J. Gangloff
- Department of Zoology Ohio Wesleyan University Delaware Ohio USA
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29
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González-Del-Pliego P, Scheffers BR, Freckleton RP, Basham EW, Araújo MB, Acosta-Galvis AR, Medina Uribe CA, Haugaasen T, Edwards DP. Thermal tolerance and the importance of microhabitats for Andean frogs in the context of land use and climate change. J Anim Ecol 2020; 89:2451-2460. [PMID: 32745275 DOI: 10.1111/1365-2656.13309] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 07/06/2020] [Indexed: 11/30/2022]
Abstract
Global warming is having impacts across the Tree of Life. Understanding species' physiological sensitivity to temperature change and how they relate to local temperature variation in their habitats is crucial to determining vulnerability to global warming. We ask how species' vulnerability varies across habitats and elevations, and how climatically buffered microhabitats can contribute to reduce their vulnerability. We measured thermal sensitivity (critical thermal maximum-CTmax ) of 14 species of Pristimantis frogs inhabiting young and old secondary, and primary forests in the Colombian Andes. Exposure to temperature stress was measured by recording temperature in the understorey and across five microhabitats. We determined frogs' current vulnerability across habitats, elevations and microhabitats accounting for phylogeny and then ask how vulnerability varies under four warming scenarios: +1.5, +2, +3 and +5°C. We found that CTmax was constant across species regardless of habitat and elevation. However, species in young secondary forests are expected to become more vulnerable because of increased exposure to higher temperatures. Microhabitat variation could enable species to persist within their thermal temperature range as long as regional temperatures do not surpass +2°C. The effectiveness of microhabitat buffering decreases with a 2-3°C increase, and is almost null under a 5°C temperature increase. Microhabitats will provide thermal protection to Andean frog communities from climate change by enabling tracking of suitable climates through short distance movement. Conservation strategies, such as managing landscapes by preserving primary forests and allowing regrowth and reconnection of secondary forest would offer thermally buffered microhabitats and aid in the survival of this group.
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Affiliation(s)
- Pamela González-Del-Pliego
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK.,Rui Nabeiro Biodiversity Chair, MED Institute, Universidade de Évora, Évora, Portugal
| | - Brett R Scheffers
- Department of Wildlife Ecology & Conservation, University of Florida/IFAS, Gainesville, FL, USA
| | - Robert P Freckleton
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
| | - Edmund W Basham
- Department of Geography, University of Sheffield, Sheffield, UK
| | - Miguel B Araújo
- Rui Nabeiro Biodiversity Chair, MED Institute, Universidade de Évora, Évora, Portugal.,Department of Biogeography and Global Change, Museo Nacional de Ciencias Naturales, Spanish National Research Council (CSIC), Madrid, Spain
| | - Andrés R Acosta-Galvis
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogota, Colombia
| | - Claudia A Medina Uribe
- Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Bogota, Colombia
| | - Torbjørn Haugaasen
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - David P Edwards
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, UK
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30
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Horváth G, Jiménez‐Robles O, Martín J, López P, De la Riva I, Herczeg G. Linking behavioral thermoregulation, boldness, and individual state in male Carpetan rock lizards. Ecol Evol 2020; 10:10230-10241. [PMID: 33005378 PMCID: PMC7520217 DOI: 10.1002/ece3.6685] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/22/2020] [Accepted: 07/27/2020] [Indexed: 02/05/2023] Open
Abstract
Mechanisms affecting consistent interindividual behavioral variation (i.e., animal personality) are of wide scientific interest. In poikilotherms, ambient temperature is one of the most important environmental factors with a direct link to a variety of fitness-related traits. Recent empirical evidence suggests that individual differences in boldness are linked to behavioral thermoregulation strategy in heliothermic species, as individuals are regularly exposed to predators during basking. Here, we tested for links between behavioral thermoregulation strategy, boldness, and individual state in adult males of the high-mountain Carpetan rock lizard (Iberolacerta cyreni). Principal component analysis revealed the following latent links in our data: (i) a positive relationship of activity with relative limb length and color brightness (PC1, 23% variation explained), (ii) a negative relationship of thermoregulatory precision with parasite load and risk-taking (PC2, 20.98% variation explained), and (iii) a negative relationship between preferred body temperature and relative limb length (PC3, 19.23% variation explained). We conclude that differences in boldness and behavioral thermoregulatory strategy could be explained by both stable and labile state variables. The moderate link between behavioral thermoregulatory strategy and risk-taking personality in our system is plausibly the result of differences in reproductive state of individuals or variation in ecological conditions during the breeding season.
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Affiliation(s)
- Gergely Horváth
- Behavioural Ecology GroupDepartment of Systematic Zoology and EcologyEötvös Loránd UniversityBudapestHungary
| | - Octavio Jiménez‐Robles
- Department of Ecology and EvolutionResearch School of BiologyAustralian National UniversityCanberraAustralia
- Department of Biodiversity and Evolutionary BiologyMuseo Nacional de Ciencias NaturalesCSICMadridSpain
| | - José Martín
- Department of Evolutionary EcologyMuseo Nacional de Ciencias NaturalesCSICMadridSpain
| | - Pilar López
- Department of Evolutionary EcologyMuseo Nacional de Ciencias NaturalesCSICMadridSpain
| | - Ignacio De la Riva
- Department of Biodiversity and Evolutionary BiologyMuseo Nacional de Ciencias NaturalesCSICMadridSpain
| | - Gábor Herczeg
- Behavioural Ecology GroupDepartment of Systematic Zoology and EcologyEötvös Loránd UniversityBudapestHungary
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31
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Temporal variation in thermal plasticity in a free-ranging subalpine lizard. J Therm Biol 2020; 91:102623. [PMID: 32716872 DOI: 10.1016/j.jtherbio.2020.102623] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/15/2020] [Accepted: 05/15/2020] [Indexed: 01/07/2023]
Abstract
Thermally variable environments are particularly challenging for ectotherms as physiological functions are thermo-dependent. As a consequence, ectotherms in highly seasonal environments are predicted to have greater thermal plasticity. However, much of our understanding of thermal plasticity comes from controlled experiments in a laboratory setting. Relatively fewer studies investigate thermal plasticity in free-ranging animals living in their natural environment. We investigated the presence of thermal plasticity within a single activity season in adult males of a natural high elevation population of White's skink (Liopholis whitii) in south-eastern Australia. This species lives in a permanent home site (rock crevice and/or burrow), facilitating the repeated capture of the same individuals across the activity season. We monitored the thermal variation across the field site and over the activity season, and tested thermal tolerances and performance of male L. whitii on three occasions across their activity season. Maximum and average temperatures varied across the field site, and temperatures gradually increased across the study period. Evidence of temporal plasticity was identified in the critical thermal minimum and thermal tolerance breadth, but not in the critical thermal maximum. Thermal performance was also found to be plastic, but no temporal patterns were evident. Our temporal plasticity results are consistent which much of the previous literature, but this is one of the first studies to identify these patterns in a free-ranging population. In addition, our results indicate that performance may be more plastic than previous literature suggests. Overall, our study highlights the need to pair laboratory and field studies in order to understand thermal plasticity in an ecologically relevant context.
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32
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Kovacevic A, Latombe G, Chown SL. Rate dynamics of ectotherm responses to thermal stress. Proc Biol Sci 2020; 286:20190174. [PMID: 31039720 DOI: 10.1098/rspb.2019.0174] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Critical thermal limits (CTLs) show much variation associated with the experimental rate of temperature change used in their estimation. Understanding the full range of variation in rate effects on CTLs and their underlying basis is thus essential if methodological noise is not to overwhelm or bias the ecological signal. We consider the effects of rate variation from multiple intraspecific assessments and provide a comprehensive empirical analysis of the rate effects on both the critical thermal maximum (CTmax) and critical thermal minimum (CTmin) for 47 species of ectotherms, exploring which of the available theoretical models best explains this variation. We find substantial interspecific variation in rate effects, which takes four different forms (increase, decline, no change, mixed), with phylogenetic signal in effects on CTmax, but not CTmin. Exponential and zero exponential failure rate models best explain the rate effects on CTmax. The majority of the empirical rate variation in CTmin could not be explained by the failure rate models. Our work demonstrates that rate effects cannot be ignored in comparative analyses, and suggests that incorporation of the failure rate models into such analyses is a useful further avenue for exploration of the fundamental basis and implications of such variation.
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Affiliation(s)
- Aleksandra Kovacevic
- 1 School of Biological Sciences, Monash University , Melbourne, Victoria 3800 , Australia
| | - Guillaume Latombe
- 2 Department of Mathematical Sciences, Centre for Invasion Biology, Stellenbosch University , Stellenbosch 7602 , South Africa
| | - Steven L Chown
- 1 School of Biological Sciences, Monash University , Melbourne, Victoria 3800 , Australia
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33
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Critical Thermal Limits Do Not Vary between Wild-caught and Captive-bred Tadpoles of Agalychnis spurrelli (Anura: Hylidae). DIVERSITY-BASEL 2020. [DOI: 10.3390/d12020043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Captive-bred organisms are widely used in ecology, evolution and conservation research, especially in scenarios where natural populations are scarce or at risk of extinction. Yet, it is still unclear whether captivity may alter thermal tolerances, crucial traits to predict species resilience to global warming. Here, we study whether captive-bred tadpoles of the gliding treefrog (Agalychnis spurrelli) show different thermal tolerances than wild-caught individuals. Our results show that there are no differences between critical thermal limits (CTmax and CTmin) of captive-bred and wild-caught tadpoles exposed to three-day acclimatization at 20 °C. Therefore, we suggest that the use of captive-bred amphibians is valid and may be appropriate in experimental comparisons to thermal physiological studies of wild populations.
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Herrando‐Pérez S, Monasterio C, Beukema W, Gomes V, Ferri‐Yáñez F, Vieites DR, Buckley LB, Araújo MB. Heat tolerance is more variable than cold tolerance across species of Iberian lizards after controlling for intraspecific variation. Funct Ecol 2020. [DOI: 10.1111/1365-2435.13507] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Salvador Herrando‐Pérez
- Australian Centre for Ancient DNA School of Biological Sciences The University of Adelaide Adelaide SA Australia
- Department of Biogeography and Global Change Museo Nacional de Ciencias Naturales Spanish National Research Council (CSIC) Madrid Spain
| | - Camila Monasterio
- Department of Biogeography and Global Change Museo Nacional de Ciencias Naturales Spanish National Research Council (CSIC) Madrid Spain
| | - Wouter Beukema
- Wildlife Health Ghent Department of Pathology, Bacteriology and Poultry Diseases Faculty of Veterinary Medicine Ghent University Merelbeke Belgium
| | - Verónica Gomes
- Research Center in Biodiversity and Genetic Resources (CIBIO) Research Network in Biodiversity and Evolutionary Biology (lnBIO) Universidade do Porto Vairão Portugal
| | - Francisco Ferri‐Yáñez
- Department of Community Ecology Helmholtz Centre for Environmental Research (UFZ) Halle (Saale) Germany
| | - David R. Vieites
- Department of Biogeography and Global Change Museo Nacional de Ciencias Naturales Spanish National Research Council (CSIC) Madrid Spain
| | | | - Miguel B. Araújo
- Department of Biogeography and Global Change Museo Nacional de Ciencias Naturales Spanish National Research Council (CSIC) Madrid Spain
- Rui Nabeiro Biodiversity Chair MED Institute Universidade de ÉvoraLargo dos Colegiais Évora Portugal
- The Globe Institute University of Copenhagen Copenhagen Denmark
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35
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Loughran CL, Wolf BO. The functional significance of panting as a mechanism of thermoregulation and its relationship to the critical thermal maxima in lizards. J Exp Biol 2020; 223:jeb.224139. [DOI: 10.1242/jeb.224139] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/29/2020] [Indexed: 12/28/2022]
Abstract
Because most desert-dwelling lizards rely primarily on behavioral thermoregulation for the maintenance of active body temperatures, the effectiveness of panting as a thermoregulatory mechanism for evaporative cooling has not been widely explored. We measured changes in body temperature (Tb) with increasing air temperature (Ta) for seventeen species of lizards that range across New Mexico and Arizona and quantified the temperatures associated with the onset of panting, the capacity of individuals to depress Tb below Ta while panting and estimated the critical thermal maxima (CTmax) for each individual. We examined these variables as a function of phylogeny, body mass, and local acclimatization temperature. We found that many species can depress Tb 2-3°C below Ta while panting, and the capacity to do so appears to be a function of each species’ ecology and thermal environment, rather than phylogeny. Panting thresholds and CTmax’s are phylogenetically conserved within groups. Understanding the functional significance of panting and its potential importance as a thermoregulatory mechanism will improve our understanding of the potential for species’ persistence in an increasingly warmer world.
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Affiliation(s)
- Caleb L. Loughran
- Department of Biology, University of New Mexico, MSC03-2020, Albuquerque, NM 87131-0001, USA
| | - Blair O. Wolf
- Department of Biology, University of New Mexico, MSC03-2020, Albuquerque, NM 87131-0001, USA
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36
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Wilson BC, Ramos JA, Peters RA. Intraspecific variation in behaviour and ecology in a territorial agamid, Ctenophorus fionni. AUST J ZOOL 2020. [DOI: 10.1071/zo20091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Intraspecific variation as a way to explore factors affecting the evolution of species traits in natural environments is well documented, and also important in the context of preserving biodiversity. In this study, we investigated the extent of behavioural, morphological and ecological variation in the peninsula dragon (Ctenophorus fionni), an endemic Australian agamid that displays extensive variation in colour across three allopatric populations. The aims of the study were to quantify variation across the different populations in terms of the environment, morphometric characteristics and behaviour. We found population level differences in habitat structure and encounter rates. Adult body size of C. fionni, as well as a range of morphometric traits, differed between populations, as well as the frequency of social interactions, which appears to be related to population density and abundance. Analysis of communicative signals showed differences between the southern and central populations, which appear consistent with variations in response to environmental differences between study sites. The findings of the present study, coupled with previous work examining colour variation in this species, show that the three populations of C. fionni have likely undergone substantial differentiation, and would make an interesting study system to explore trait variation in more detail.
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37
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Pregnancy reduces critical thermal maximum, but not voluntary thermal maximum, in a viviparous skink. J Comp Physiol B 2019; 189:611-621. [DOI: 10.1007/s00360-019-01230-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 07/17/2019] [Accepted: 08/14/2019] [Indexed: 02/07/2023]
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38
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Walls SC, Barichivich WJ, Chandler J, Meade AM, Milinichik M, O'Donnell KM, Owens ME, Peacock T, Reinman J, Watling RC, Wetsch OE. Seeking shelter from the storm: Conservation and management of imperiled species in a changing climate. Ecol Evol 2019; 9:7122-7133. [PMID: 31380037 PMCID: PMC6662284 DOI: 10.1002/ece3.5277] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/26/2019] [Accepted: 05/04/2019] [Indexed: 11/11/2022] Open
Abstract
Climate change is anticipated to exacerbate the extinction risk of species whose persistence is already compromised by habitat loss, invasive species, disease, or other stressors. In coastal areas of the southeastern United States (USA), many imperiled vertebrates are vulnerable to hurricanes, which climate models predict to become more severe in the 21st century. Despite this escalating threat, explicit adaptation strategies that address hurricane threats, in particular, and climate change more generally, are largely underrepresented in recovery planning and implementation. We provide a basis for stronger emphasis on strategic planning for imperiled species facing the increasing threat of catastrophic hurricanes. Our reasoning comes from observations of short-term environmental and biological impacts of Hurricane Michael, which impacted the Gulf Coast of the southeastern USA in October 2018. During this storm, St. Marks National Wildlife Refuge, located along the northern Gulf of Mexico's coast in the panhandle region of Florida, received storm surge that was 3.0-3.6 m (NAVD88) above sea level. Storm surge pushed sea water into some ephemeral freshwater ponds used for breeding by the federally threatened frosted flatwoods salamander (Ambystoma cingulatum). After the storm, specific conductance across all ponds measured varied from 80 to 23,100 µS/cm, compared to 75 to 445 µS/cm in spring 2018. For 17 overwashed wetlands that were measured in both spring and fall 2018, posthurricane conductance observations were, on average, more than 90 times higher than in the previous spring, setting the stage for varying population responses across this coastal landscape. Importantly, we found live individual flatwoods salamanders at both overwashed and non-overwashed sites, although we cannot yet assess the demographic consequences of this storm. We outline actions that could be incorporated into climate adaptation strategies and recovery planning for imperiled species, like A. cingulatum, that are associated with freshwater coastal wetlands in hurricane-prone regions.
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Affiliation(s)
- Susan C Walls
- Wetland and Aquatic Research Center U.S. Geological Survey Gainesville Florida
| | | | - Jonathan Chandler
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | - Ashley M Meade
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | - Marysa Milinichik
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | | | - Megan E Owens
- Wetland and Aquatic Research Center U.S. Geological Survey Gainesville Florida
- Environmental Stewards Program Conservation Legacy Durango Colorado
| | - Terry Peacock
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | - Joseph Reinman
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
| | - Rebecca C Watling
- Wetland and Aquatic Research Center U.S. Geological Survey Gainesville Florida
- Environmental Stewards Program Conservation Legacy Durango Colorado
| | - Olivia E Wetsch
- St. Marks National Wildlife Refuge U.S. Fish and Wildlife Service St. Marks Florida
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39
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Senior AF, Atkins ZS, Clemann N, Gardner MG, Schroder M, While GM, Wong BBM, Chapple DG. Variation in thermal biology of three closely related lizard species along an elevation gradient. Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/blz046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Anna F Senior
- School of Biological Sciences, Monash University, Clayton, VIC, Australia
| | - Zak S Atkins
- Department of Ecology, Environment and Evolution, La Trobe University, Bundoora, VIC, Australia
| | - Nick Clemann
- Arthur Rylah Institute for Environmental Research, Victorian Department of Environment, Land, Water and Planning, Heidelberg, VIC, Australia
| | - Michael G Gardner
- College of Science and Engineering, Flinders University, Adelaide, SA, Australia
| | - Mellesa Schroder
- NSW National Parks and Wildlife Service, Southern Ranges Branch, Jindabyne, NSW, Australia
| | - Geoffrey M While
- School of Biological Sciences, University of Tasmania, Hobart, TAS, Australia
| | - Bob B M Wong
- School of Biological Sciences, Monash University, Clayton, VIC, Australia
| | - David G Chapple
- School of Biological Sciences, Monash University, Clayton, VIC, Australia
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