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Canessa M, Bertolotto R, Betti F, Bo M, Dagnino A, Enrichetti F, Toma M, Bavestrello G. Variation in the Health Status of the Mediterranean Gorgonian Forests: The Synergistic Effect of Marine Heat Waves and Fishing Activity. BIOLOGY 2024; 13:642. [PMID: 39194580 DOI: 10.3390/biology13080642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 08/13/2024] [Accepted: 08/20/2024] [Indexed: 08/29/2024]
Abstract
Over the past thirty years, the red gorgonian Paramuricea clavata in the Mediterranean Sea has faced increasing threats, including heat waves and human activities such as artisanal and recreational fishing. Epibiosis on damaged gorgonian colonies is generally used as an indirect indication of stressed conditions. The density and height of P. clavata and the percentage of colonies affected by epibiosis and entangled in lost fishing gear were monitored to investigate the phenomenon and its trend over time in the Ligurian Sea. Analyses were based on transects collected during ROV campaigns between 2015 and 2022 at depths of 33-90 m. A strong correlation was observed between fishing efforts in the study area and the level of epibiosis. Maximal percentages of colonies affected by epibiosis and entanglement were recorded at depths of 50-70 m. Temporally, marine heat waves before 2019 were identified as the primary cause of damage to P. clavata. The decrease in epibiosis percentages after 2019, despite the 2022 heat wave, may be due to a quick recovery ability of the populations and a reduction in fishing activities during the COVID-19 lockdown in 2020. Long-term monitoring programmes are essential to understand the changes in marine benthic communities exposed to different stressors.
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Affiliation(s)
- Martina Canessa
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita-DISTAV, Università di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Rosella Bertolotto
- Agenzia Regionale per la Protezione dell'Ambiente Ligure-ARPAL, Via Bombrini 8, 16149 Genova, Italy
| | - Federico Betti
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita-DISTAV, Università di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Marzia Bo
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita-DISTAV, Università di Genova, Corso Europa 26, 16132 Genova, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Piazzale Flaminio 9, 00196 Roma, Italy
- National Biodiversity Future Centre-NBFC, Piazza Marina 61, 90133 Palermo, Italy
| | - Alessandro Dagnino
- Agenzia Regionale per la Protezione dell'Ambiente Ligure-ARPAL, Via Bombrini 8, 16149 Genova, Italy
| | - Francesco Enrichetti
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita-DISTAV, Università di Genova, Corso Europa 26, 16132 Genova, Italy
| | - Margherita Toma
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita-DISTAV, Università di Genova, Corso Europa 26, 16132 Genova, Italy
- Istituto Superiore per la Protezione e la Ricerca Ambientale-ISPRA, Via Vitalino Brancati 48, 00144 Roma, Italy
| | - Giorgio Bavestrello
- Dipartimento di Scienze della Terra dell'Ambiente e della Vita-DISTAV, Università di Genova, Corso Europa 26, 16132 Genova, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare, Piazzale Flaminio 9, 00196 Roma, Italy
- National Biodiversity Future Centre-NBFC, Piazza Marina 61, 90133 Palermo, Italy
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2
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Smith KE, Aubin M, Burrows MT, Filbee-Dexter K, Hobday AJ, Holbrook NJ, King NG, Moore PJ, Sen Gupta A, Thomsen M, Wernberg T, Wilson E, Smale DA. Global impacts of marine heatwaves on coastal foundation species. Nat Commun 2024; 15:5052. [PMID: 38871692 DOI: 10.1038/s41467-024-49307-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 05/31/2024] [Indexed: 06/15/2024] Open
Abstract
With increasingly intense marine heatwaves affecting nearshore regions, foundation species are coming under increasing stress. To better understand their impacts, we examine responses of critical, habitat-forming foundation species (macroalgae, seagrass, corals) to marine heatwaves in 1322 shallow coastal areas located across 85 marine ecoregions. We find compelling evidence that intense, summer marine heatwaves play a significant role in the decline of foundation species globally. Critically, detrimental effects increase towards species warm-range edges and over time. We also identify several ecoregions where foundation species don't respond to marine heatwaves, suggestive of some resilience to warming events. Cumulative marine heatwave intensity, absolute temperature, and location within a species' range are key factors mediating impacts. Our results suggest many coastal ecosystems are losing foundation species, potentially impacting associated biodiversity, ecological function, and ecosystem services provision. Understanding relationships between marine heatwaves and foundation species offers the potential to predict impacts that are critical for developing management and adaptation approaches.
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Affiliation(s)
- Kathryn E Smith
- Marine Biological Association of the United Kingdom, Plymouth, UK.
| | - Margot Aubin
- Marine Biological Association of the United Kingdom, Plymouth, UK
| | | | - Karen Filbee-Dexter
- Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, WA, Australia
- Institute of Marine Research, His, Bergen, Norway
| | | | - Neil J Holbrook
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, 7001, TAS, Australia
- Australian Research Council Centre of Excellence for Climate Extremes, University of Tasmania, Hobart, 7001, TAS, Australia
| | - Nathan G King
- Marine Biological Association of the United Kingdom, Plymouth, UK
| | - Pippa J Moore
- Dove Marine Laboratory, School of Natural and Environmental Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Alex Sen Gupta
- Climate Change Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Mads Thomsen
- The Marine Ecology Research Group, Centre of Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand
- Aarhus University, Department of Ecoscience, 4000, Roskilde, Denmark
| | - Thomas Wernberg
- Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, WA, Australia
- Institute of Marine Research, His, Bergen, Norway
| | - Edward Wilson
- Marine Biological Association of the United Kingdom, Plymouth, UK
| | - Dan A Smale
- Marine Biological Association of the United Kingdom, Plymouth, UK
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3
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Estaque T, Basthard-Bogain S, Bianchimani O, Blondeaux V, Cheminée A, Fargetton M, Richaume J, Bally M. Investigating the outcomes of a threatened gorgonian in situ transplantation: Survival and microbiome diversity in Paramuricea clavata (Risso, 1827). MARINE ENVIRONMENTAL RESEARCH 2024; 196:106384. [PMID: 38320428 DOI: 10.1016/j.marenvres.2024.106384] [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: 11/03/2023] [Revised: 01/29/2024] [Accepted: 01/30/2024] [Indexed: 02/08/2024]
Abstract
Gorgonian octocorals are threatened by global and local stressors that can act synergistically to affect their health. In recent years, mass mortality events triggered by marine heatwaves have caused demographic declines in Mediterranean gorgonian populations that may lead to their collapse. Potential changes in microbiome composition under stressful conditions may further increase the susceptibility of the gorgonian holobiont to disease. Given the low recovery capacity of gorgonians, restoration approaches using transplantation are becoming an increasingly attractive option to counteract their decline. Here, we compared the survival and microbiome diversity of Paramuricea clavata colonies transplanted to sites differing in depth and local environmental conditions. Gorgonians sampled at a greater depth than the transplantation site were more likely to suffer necrosis after 1 year of monitoring. Gorgonian transplantation into environments disturbed by an anthropogenic source of pollution resulted in an imbalance of the microbiome with potential consequences on the success of restoration initiatives.
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Affiliation(s)
- Tristan Estaque
- Septentrion Environnement, Campus Nature Provence, Marseille, France.
| | | | | | - Vincent Blondeaux
- Septentrion Environnement, Campus Nature Provence, Marseille, France
| | - Adrien Cheminée
- Septentrion Environnement, Campus Nature Provence, Marseille, France
| | - Margaux Fargetton
- Septentrion Environnement, Campus Nature Provence, Marseille, France
| | - Justine Richaume
- Septentrion Environnement, Campus Nature Provence, Marseille, France
| | - Marc Bally
- Mediterranean Institute of Oceanography, Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO, Marseille, France
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4
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Bonacolta AM, Miravall J, Gómez-Gras D, Ledoux JB, López-Sendino P, Garrabou J, Massana R, Del Campo J. Differential apicomplexan presence predicts thermal stress mortality in the Mediterranean coral Paramuricea clavata. Environ Microbiol 2024; 26:e16548. [PMID: 38072822 DOI: 10.1111/1462-2920.16548] [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: 05/16/2023] [Accepted: 11/21/2023] [Indexed: 01/30/2024]
Abstract
Paramuricea clavata is an ecosystem architect of the Mediterranean temperate reefs that is currently threatened by episodic mass mortality events related to global warming. The microbiome may play an active role in the thermal stress susceptibility of corals, potentially holding the answer as to why corals show differential sensitivity to heat stress. To investigate this, the prokaryotic and eukaryotic microbiome of P. clavata collected from around the Mediterranean was characterised before experimental heat stress to determine if its microbial composition influences the thermal response of the holobiont. We found that members of P. clavata's microeukaryotic community were significantly correlated with thermal stress sensitivity. Syndiniales from the Dino-Group I Clade 1 were significantly enriched in thermally resistant corals, while the apicomplexan corallicolids were significantly enriched in thermally susceptible corals. We hypothesise that P. clavata mortality following heat stress may be caused by a shift from apparent commensalism to parasitism in the corallicolid-coral host relationship driven by the added stress. Our results show the potential importance of corallicolids and the rest of the microeukaryotic community of corals to understanding thermal stress response in corals and provide a useful tool to guide conservation efforts and future research into coral-associated microeukaryotes.
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Affiliation(s)
- Anthony M Bonacolta
- Department of Marine Biology and Ecology, Rosenstiel School of Marine, Atmospheric and Earth Science, University of Miami, Miami, Florida, USA
- Programa de Biodiversiat, Institut de Biologia Evolutiva (CSIC-Universitat Pompeu Fabra), Barcelona, Catalonia, Spain
| | - Jordi Miravall
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar-CSIC, Barcelona, Catalonia, Spain
| | - Daniel Gómez-Gras
- Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kaneohe, Hawaii, USA
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Institut de Recerca de la Biodiversitat (IRBIO), Universitat de Barcelona, Barcelona, Spain
| | - Jean-Baptiste Ledoux
- CIIMAR/CIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Porto, Portugal
| | - Paula López-Sendino
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar-CSIC, Barcelona, Catalonia, Spain
| | - Joaquim Garrabou
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar-CSIC, Barcelona, Catalonia, Spain
| | - Ramon Massana
- Departament de Biologia Marina i Oceanografia, Institut de Ciències del Mar-CSIC, Barcelona, Catalonia, Spain
| | - Javier Del Campo
- Department of Marine Biology and Ecology, Rosenstiel School of Marine, Atmospheric and Earth Science, University of Miami, Miami, Florida, USA
- Programa de Biodiversiat, Institut de Biologia Evolutiva (CSIC-Universitat Pompeu Fabra), Barcelona, Catalonia, Spain
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5
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Prioux C, Tignat-Perrier R, Gervais O, Estaque T, Schull Q, Reynaud S, Béraud E, Mérigot B, Beauvieux A, Marcus MI, Richaume J, Bianchimani O, Cheminée A, Allemand D, Ferrier-Pagès C. Unveiling microbiome changes in Mediterranean octocorals during the 2022 marine heatwaves: quantifying key bacterial symbionts and potential pathogens. MICROBIOME 2023; 11:271. [PMID: 38053218 PMCID: PMC10696765 DOI: 10.1186/s40168-023-01711-x] [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: 07/21/2023] [Accepted: 10/27/2023] [Indexed: 12/07/2023]
Abstract
BACKGROUND Climate change has accelerated the occurrence and severity of heatwaves in the Mediterranean Sea and poses a significant threat to the octocoral species that form the foundation of marine animal forests (MAFs). As coral health intricately relies on the symbiotic relationships established between corals and microbial communities, our goal was to gain a deeper understanding of the role of bacteria in the observed tissue loss of key octocoral species following the unprecedented heatwaves in 2022. RESULTS Using amplicon sequencing and taxon-specific qPCR analyses, we unexpectedly found that the absolute abundance of the major bacterial symbionts, Spirochaetaceae (C. rubrum) and Endozoicomonas (P. clavata), remained, in most cases, unchanged between colonies with 0% and 90% tissue loss. These results suggest that the impairment of coral health was not due to the loss of the main bacterial symbionts. However, we observed a significant increase in the total abundance of bacterial opportunists, including putative pathogens such as Vibrio, which was not evident when only their relative abundance was considered. In addition, there was no clear relation between bacterial symbiont loss and the intensity of thermal stress, suggesting that factors other than temperature may have influenced the differential response of octocoral microbiomes at different sampling sites. CONCLUSIONS Our results indicate that tissue loss in octocorals is not directly caused by the decline of the main bacterial symbionts but by the proliferation of opportunistic and pathogenic bacteria. Our findings thus underscore the significance of considering both relative and absolute quantification approaches when evaluating the impact of stressors on coral microbiome as the relative quantification does not accurately depict the actual changes in the microbiome. Consequently, this research enhances our comprehension of the intricate interplay between host organisms, their microbiomes, and environmental stressors, while offering valuable insights into the ecological implications of heatwaves on marine animal forests. Video Abstract.
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Affiliation(s)
- Camille Prioux
- Collège Doctoral, Sorbonne Université, Paris, France
- Unité de Recherche sur la Biologie des Coraux Précieux CSM - CHANEL, Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC-98000 Monaco, Principality of Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Romie Tignat-Perrier
- Unité de Recherche sur la Biologie des Coraux Précieux CSM - CHANEL, Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC-98000 Monaco, Principality of Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Ophélie Gervais
- Unité de Recherche sur la Biologie des Coraux Précieux CSM - CHANEL, Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC-98000 Monaco, Principality of Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Tristan Estaque
- Septentrion Environnement, Campus Nature Provence, Marseille, 13008, France
| | - Quentin Schull
- MARBEC, Univ. Montpellier, CNRS, IFREMER, IRD, Sète, France
| | - Stéphanie Reynaud
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Eric Béraud
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | | | | | - Maria-Isabelle Marcus
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Justine Richaume
- Septentrion Environnement, Campus Nature Provence, Marseille, 13008, France
| | | | - Adrien Cheminée
- Septentrion Environnement, Campus Nature Provence, Marseille, 13008, France
| | - Denis Allemand
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco
| | - Christine Ferrier-Pagès
- Centre Scientifique de Monaco, 8 Quai Antoine 1er, Monaco, MC 98000, Principality of Monaco.
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Pessato A, Udino E, McKechnie AE, Bennett ATD, Mariette MM. Thermal acclimatisation to heatwave conditions is rapid but sex-specific in wild zebra finches. Sci Rep 2023; 13:18297. [PMID: 37880274 PMCID: PMC10600105 DOI: 10.1038/s41598-023-45291-0] [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: 08/16/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023] Open
Abstract
Under climate change, increasing air temperature average and variability pose substantial thermal challenges to animals. While plasticity in thermoregulatory traits could potentially attenuate this impact, whether thermal acclimatisation can occur quickly enough to track weather variability in hot climates is unknown in any endotherm, and sex differences have never been tested. We investigated acclimatisation responsiveness of male and female wild zebra finches to short-term (< 2 weeks) summer temperature fluctuations in the Australian desert. Hotter weather before respirometry trials triggered a typical acclimatisation response (especially at chamber temperature Tchamb ≥ 40). However, acclimatisation occurred remarkably rapidly: metabolic rate responded within just one day, while body temperature (Tb) and evaporative cooling capacity (EHL/MHP) were best predicted by weather on the trial day; whereas evaporative water loss responded more slowly (1 week). Nonetheless, rapid acclimatisation only occurred in males, and females had higher Tb and lower EHL/MHP than males, potentially increasing hyperthermia risk. Furthermore, acclimatisation did not translate into greater acute heat tolerance (i.e. ability to tolerate Tchamb = 46 °C). Our results therefore reveal surprisingly rapid acclimatisation and even anticipatory adjustments to heat. However, with no changes in acute heat tolerance, and in females, phenotypic flexibility may provide only limited buffering against the detrimental impact of heatwaves.
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Affiliation(s)
- Anaïs Pessato
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong 3216, VIC, Australia
| | - Eve Udino
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong 3216, VIC, Australia
| | - Andrew E McKechnie
- South African Research Chair in Conservation Physiology, South African National Biodiversity Institute, Pretoria, 0001, South Africa
- DSI-NRF Centre of Excellence at the FitzPatrick Institute, Department of Zoology and Entomology, University of Pretoria, Pretoria, 0001, South Africa
| | - Andrew T D Bennett
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong 3216, VIC, Australia
- One Health Research Group, Melbourne Veterinary School, Faculty of Science, University of Melbourne, Werribee, VIC, 3030, Australia
| | - Mylene M Mariette
- Centre for Integrative Ecology, School of Life and Environmental Sciences, Deakin University, Geelong 3216, VIC, Australia.
- Doñana Biological Station EBD-CSIC, 41092, Seville, Spain.
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7
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Smith KE, Burrows MT, Hobday AJ, King NG, Moore PJ, Sen Gupta A, Thomsen MS, Wernberg T, Smale DA. Biological Impacts of Marine Heatwaves. ANNUAL REVIEW OF MARINE SCIENCE 2023; 15:119-145. [PMID: 35977411 DOI: 10.1146/annurev-marine-032122-121437] [Citation(s) in RCA: 46] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Climatic extremes are becoming increasingly common against a background trend of global warming. In the oceans, marine heatwaves (MHWs)-discrete periods of anomalously warm water-have intensified and become more frequent over the past century, impacting the integrity of marine ecosystems globally. We review and synthesize current understanding of MHW impacts at the individual, population, and community levels. We then examine how these impacts affect broader ecosystem services and discuss the current state of research on biological impacts of MHWs. Finally, we explore current and emergent approaches to predicting the occurrence andimpacts of future events, along with adaptation and management approaches. With further increases in intensity and frequency projected for coming decades, MHWs are emerging as pervasive stressors to marine ecosystems globally. A deeper mechanistic understanding of their biological impacts is needed to better predict and adapt to increased MHW activity in the Anthropocene.
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Affiliation(s)
- Kathryn E Smith
- Marine Biological Association of the United Kingdom, Plymouth, United Kingdom; , ,
| | | | | | - Nathan G King
- Marine Biological Association of the United Kingdom, Plymouth, United Kingdom; , ,
| | - Pippa J Moore
- Dove Marine Laboratory, School of Natural and Environmental Sciences, Newcastle University, Newcastle-Upon-Tyne, United Kingdom;
| | - Alex Sen Gupta
- Climate Change Research Centre, University of New South Wales, Sydney, New South Wales, Australia;
| | - Mads S Thomsen
- Marine Ecology Research Group, Centre of Integrative Ecology, School of Biological Sciences, University of Canterbury, Christchurch, New Zealand;
- Department of Bioscience, Aarhus University, Roskilde, Denmark
| | - Thomas Wernberg
- Oceans Institute and School of Biological Sciences, University of Western Australia, Crawley, Western Australia, Australia;
- Institute of Marine Research, His, Norway
| | - Dan A Smale
- Marine Biological Association of the United Kingdom, Plymouth, United Kingdom; , ,
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8
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Ahmadi K, Mahmoodi S, Pal SC, Saha A, Chowdhuri I, Nguyen TT, Jarvie S, Szostak M, Socha J, Thai VN. Improving species distribution models for dominant trees in climate data-poor forests using high-resolution remote sensing. Ecol Modell 2023. [DOI: 10.1016/j.ecolmodel.2022.110190] [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]
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9
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Schiebelhut LM, Gaylord B, Grosberg RK, Jurgens LJ, Dawson MN. Species' attributes predict the relative magnitude of ecological and genetic recovery following mass mortality. Mol Ecol 2022; 31:5714-5728. [PMID: 36178057 PMCID: PMC9828784 DOI: 10.1111/mec.16707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 07/24/2022] [Accepted: 07/27/2022] [Indexed: 01/13/2023]
Abstract
Theoretically, species' characteristics should allow estimation of dispersal potential and, in turn, explain levels of population genetic differentiation. However, a mismatch between traits and genetic patterns is often reported for marine species, and interpreted as evidence that life-history traits do not influence dispersal. Here, we couple ecological and genomic methods to test the hypothesis that species with attributes favouring greater dispersal potential-e.g., longer pelagic duration, higher fecundity and larger population size-have greater realized dispersal overall. We used a natural experiment created by a large-scale and multispecies mortality event which created a "clean slate" on which to study recruitment dynamics, thus simplifying a usually complex problem. We surveyed four species of differing dispersal potential to quantify the abundance and distribution of recruits and to genetically assign these recruits to probable parental sources. Species with higher dispersal potential recolonized a broader extent of the impacted range, did so more quickly and recovered more genetic diversity than species with lower dispersal potential. Moreover, populations of taxa with higher dispersal potential exhibited more immigration (71%-92% of recruits) than taxa with lower dispersal potential (17%-44% of recruits). By linking ecological with genomic perspectives, we demonstrate that a suite of interacting life-history and demographic attributes do influence species' realized dispersal and genetic neighbourhoods. To better understand species' resilience and recovery in this time of global change, integrative eco-evolutionary approaches are needed to more rigorously evaluate the effect of dispersal-linked attributes on realized dispersal and population genetic differentiation.
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Affiliation(s)
| | - Brian Gaylord
- Bodega Marine LaboratoryUniversity of CaliforniaDavisCaliforniaUSA
| | | | - Laura J. Jurgens
- Department of Marine BiologyTexas A&M University at GalvestonGalvestonTexasUSA
| | - Michael N Dawson
- Life and Environmental SciencesUniversity of CaliforniaMercedCaliforniaUSA
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10
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Garrabou J, Gómez‐Gras D, Medrano A, Cerrano C, Ponti M, Schlegel R, Bensoussan N, Turicchia E, Sini M, Gerovasileiou V, Teixido N, Mirasole A, Tamburello L, Cebrian E, Rilov G, Ledoux J, Souissi JB, Khamassi F, Ghanem R, Benabdi M, Grimes S, Ocaña O, Bazairi H, Hereu B, Linares C, Kersting DK, la Rovira G, Ortega J, Casals D, Pagès‐Escolà M, Margarit N, Capdevila P, Verdura J, Ramos A, Izquierdo A, Barbera C, Rubio‐Portillo E, Anton I, López‐Sendino P, Díaz D, Vázquez‐Luis M, Duarte C, Marbà N, Aspillaga E, Espinosa F, Grech D, Guala I, Azzurro E, Farina S, Cristina Gambi M, Chimienti G, Montefalcone M, Azzola A, Mantas TP, Fraschetti S, Ceccherelli G, Kipson S, Bakran‐Petricioli T, Petricioli D, Jimenez C, Katsanevakis S, Kizilkaya IT, Kizilkaya Z, Sartoretto S, Elodie R, Ruitton S, Comeau S, Gattuso J, Harmelin J. Marine heatwaves drive recurrent mass mortalities in the Mediterranean Sea. GLOBAL CHANGE BIOLOGY 2022; 28:5708-5725. [PMID: 35848527 PMCID: PMC9543131 DOI: 10.1111/gcb.16301] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/10/2022] [Accepted: 05/15/2022] [Indexed: 05/12/2023]
Abstract
Climate change is causing an increase in the frequency and intensity of marine heatwaves (MHWs) and mass mortality events (MMEs) of marine organisms are one of their main ecological impacts. Here, we show that during the 2015-2019 period, the Mediterranean Sea has experienced exceptional thermal conditions resulting in the onset of five consecutive years of widespread MMEs across the basin. These MMEs affected thousands of kilometers of coastline from the surface to 45 m, across a range of marine habitats and taxa (50 taxa across 8 phyla). Significant relationships were found between the incidence of MMEs and the heat exposure associated with MHWs observed both at the surface and across depths. Our findings reveal that the Mediterranean Sea is experiencing an acceleration of the ecological impacts of MHWs which poses an unprecedented threat to its ecosystems' health and functioning. Overall, we show that increasing the resolution of empirical observation is critical to enhancing our ability to more effectively understand and manage the consequences of climate change.
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Affiliation(s)
- Joaquim Garrabou
- Institut de Ciències del Mar‐CSICBarcelonaSpain
- Université de Toulon, CNRS, IRD, MIOAix Marseille UnivMarseilleFrance
| | - Daniel Gómez‐Gras
- Institut de Ciències del Mar‐CSICBarcelonaSpain
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Alba Medrano
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Carlo Cerrano
- Dept of Life and Environmental SciencesPolytechnic University of MarcheAnconaItaly
- Fano Marine CentreFanoItaly
| | - Massimo Ponti
- Department of Biological, Geological and Environmental SciencesUniversity of BolognaRavennaItaly
- CoNISMaRomeItaly
| | - Robert Schlegel
- Laboratoire d'Océanographie de VillefrancheSorbonne, Université, CNRSVillefranche‐sur‐merFrance
| | - Nathaniel Bensoussan
- Institut de Ciències del Mar‐CSICBarcelonaSpain
- Université de Toulon, CNRS, IRD, MIOAix Marseille UnivMarseilleFrance
| | - Eva Turicchia
- Department of Biological, Geological and Environmental SciencesUniversity of BolognaRavennaItaly
- CoNISMaRomeItaly
| | - Maria Sini
- Department of Marine SciencesUniversity of the AegeanMytileneGreece
| | - Vasilis Gerovasileiou
- Department of Environment, Faculty of EnvironmentIonian UniversityZakynthosGreece
- Hellenic Centre for Marine Research (HCMR)Institute of Marine Biology, Biotechnology and Aquaculture (IMBBC)HeraklionGreece
| | - Nuria Teixido
- Laboratoire d'Océanographie de VillefrancheSorbonne, Université, CNRSVillefranche‐sur‐merFrance
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine EcologyIschia Marine CentreNaplesItaly
| | - Alice Mirasole
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine EcologyIschia Marine CentreNaplesItaly
| | - Laura Tamburello
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine EcologyIschia Marine CentreNaplesItaly
| | - Emma Cebrian
- Centre d'Estudis Avançats de Blanes (CEAB‐CSIC)GironaSpain
| | - Gil Rilov
- National Institute of OceanographyIsrael Oceanographic and Limnological Research (IOLR)HaifaIsrael
| | - Jean‐Baptiste Ledoux
- Institut de Ciències del Mar‐CSICBarcelonaSpain
- CIIMAR‐Interdisciplinary Centre of Marine and Environmental ResearchUniversity of PortoMatosinhosPortugal
| | - Jamila Ben Souissi
- National Agronomic Institute of TunisiaTunis University of CarthageTunisTunisia
- Biodiversity, Biotechnology and Climate Change Laboratory‐LR11ES09University of Tunis El ManarTunisTunisia
| | - Faten Khamassi
- National Agronomic Institute of TunisiaTunis University of CarthageTunisTunisia
| | - Raouia Ghanem
- Biodiversity, Biotechnology and Climate Change Laboratory‐LR11ES09University of Tunis El ManarTunisTunisia
| | | | - Samir Grimes
- Ecole Nationale Supérieure des Sciences de la Mer et de l'Aménagement (ENSSMAL)AlgerAlgeria
| | | | - Hocein Bazairi
- Laboratory 'Biodiversity, Ecology and Genome', Faculty of SciencesMohamed V University in RabatRabatMorocco
| | - Bernat Hereu
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Cristina Linares
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Diego Kurt Kersting
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Graciel la Rovira
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Júlia Ortega
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - David Casals
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Marta Pagès‐Escolà
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Núria Margarit
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Institut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Pol Capdevila
- School of Biological SciencesUniversity of BristolBristolUK
| | | | - Alfonso Ramos
- Departamento de Ciencias del Mar y Biología AplicadaUniversidad de AlicanteAlicanteSpain
| | | | - Carmen Barbera
- Departamento de Ciencias del Mar y Biología AplicadaUniversidad de AlicanteAlicanteSpain
| | | | | | | | - David Díaz
- Centro Oceanográfico de Baleares (IEO‐CSIC)Palma de MallorcaSpain
| | | | - Carlos Duarte
- Red Sea Research CenterKing Abudllah University of Science and TechnologyThuwalSaudi Arabia
- Institut Mediterrani d'Estudis AvançatsMallorcaSpain
| | - Nuria Marbà
- Institut Mediterrani d'Estudis AvançatsMallorcaSpain
| | | | - Free Espinosa
- Laboratorio de Biología MarinaUniversidad de SevillaSevillaSpain
| | | | - Ivan Guala
- IMC—International Marine CentreOristanoItaly
| | - Ernesto Azzurro
- Stazione Zoologica Anton Dohrn, Department of Integrative Marine EcologyIschia Marine CentreNaplesItaly
- CNR‐IRBIM, NR‐IRBIM, National Research CouncilInstitute of Biological Resources and Marine BiotechnologiesAnconaItaly
| | - Simone Farina
- Stazione Zoologica Anton Dohrn, Deptartment of Integrative Marine EcologyGenoa Marine CentreGenoaItaly
| | | | - Giovanni Chimienti
- CoNISMaRomeItaly
- Department of BiologyUniversity of Bari Aldo MoroBariItaly
| | - Monica Montefalcone
- Department of Earth, Environment and Life SciencesUniversity of GenoaGenoaItaly
| | - Annalisa Azzola
- Department of Earth, Environment and Life SciencesUniversity of GenoaGenoaItaly
| | | | - Simonetta Fraschetti
- CoNISMaRomeItaly
- Department of BiologyUniversity of Naples Federico IINaplesItaly
| | | | - Silvija Kipson
- SEAFANZagrebCroatia
- Faculty of Science, Department of BiologyUniversity of ZagrebZagrebCroatia
| | | | - Donat Petricioli
- D.I.I.V. Ltd for Marine, Freshwater and Subterranean EcologySaliCroatia
| | - Carlos Jimenez
- Enalia Physis Environmental Research CentreNicosiaCyprus
- The Cyprus Institute Energy Environment and Water Research CenterAglantziaCyprus
| | | | | | | | | | | | - Sandrine Ruitton
- Université de Toulon, CNRS, IRD, MIOAix Marseille UnivMarseilleFrance
| | - Steeve Comeau
- Laboratoire d'Océanographie de VillefrancheSorbonne, Université, CNRSVillefranche‐sur‐merFrance
| | - Jean‐Pierre Gattuso
- Laboratoire d'Océanographie de VillefrancheSorbonne, Université, CNRSVillefranche‐sur‐merFrance
- Institute for Sustainable Development and International Relations. Sciences PoParisFrance
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11
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El-Khaled YC, Daraghmeh N, Tilstra A, Roth F, Huettel M, Rossbach FI, Casoli E, Koester A, Beck M, Meyer R, Plewka J, Schmidt N, Winkelgrund L, Merk B, Wild C. Fleshy red algae mats act as temporary reservoirs for sessile invertebrate biodiversity. Commun Biol 2022; 5:579. [PMID: 35697788 PMCID: PMC9192683 DOI: 10.1038/s42003-022-03523-5] [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: 08/18/2021] [Accepted: 05/23/2022] [Indexed: 11/23/2022] Open
Abstract
Many coastal ecosystems, such as coral reefs and seagrass meadows, currently experience overgrowth by fleshy algae due to the interplay of local and global stressors. This is usually accompanied by strong decreases in habitat complexity and biodiversity. Recently, persistent, mat-forming fleshy red algae, previously described for the Black Sea and several Atlantic locations, have also been observed in the Mediterranean. These several centimetre high mats may displace seagrass meadows and invertebrate communities, potentially causing a substantial loss of associated biodiversity. We show that the sessile invertebrate biodiversity in these red algae mats is high and exceeds that of neighbouring seagrass meadows. Comparative biodiversity indices were similar to or higher than those recently described for calcifying green algae habitats and biodiversity hotspots like coral reefs or mangrove forests. Our findings suggest that fleshy red algae mats can act as alternative habitats and temporary sessile invertebrate biodiversity reservoirs in times of environmental change. Comparative analyses of fleshy red algae mats and seagrass meadows highlight their value in fostering sessile invertebrate biodiversity.
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Affiliation(s)
- Yusuf C El-Khaled
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany.
| | - Nauras Daraghmeh
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany.,Red Sea Research Center, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955, Kingdom of Saudi Arabia
| | - Arjen Tilstra
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Florian Roth
- Baltic Sea Centre, Stockholm University, 10691, Stockholm, Sweden.,Faculty of Biological and Environmental Sciences, Tvärminne Zoological Station, University of Helsinki, 00014, Helsinki, Finland
| | - Markus Huettel
- Department of Earth, Ocean and Atmospheric Science, Florida State University, Tallahassee, FL, 32306-4520, USA
| | - Felix I Rossbach
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Edoardo Casoli
- Department of Environmental Biology, Sapienza University of Rome, 00185, Rome, Italy
| | - Anna Koester
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Milan Beck
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Raïssa Meyer
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Julia Plewka
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Neele Schmidt
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Lisa Winkelgrund
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Benedikt Merk
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
| | - Christian Wild
- Marine Ecology Department, Faculty of Biology and Chemistry, University of Bremen, 28359, Bremen, Germany
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12
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Liconti A, Pittman SJ, Rees SE, Mieszkowska N. Identifying conservation priorities for gorgonian forests in Italian coastal waters with multiple methods including citizen science and social media content analysis. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Arianna Liconti
- School of Biological and Marine Sciences Plymouth University Plymouth UK
- The Marine Biological Association The Laboratory Plymouth UK
| | - Simon J. Pittman
- School of Biological and Marine Sciences Plymouth University Plymouth UK
- Oxford Seascape Ecology Lab School of Geography and the Environment, University of Oxford Oxford UK
| | - Sian E. Rees
- School of Biological and Marine Sciences Plymouth University Plymouth UK
| | - Nova Mieszkowska
- The Marine Biological Association The Laboratory Plymouth UK
- School of Environmental Sciences University of Liverpool Liverpool UK
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13
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Corinaldesi C, Varrella S, Tangherlini M, Dell'Anno A, Canensi S, Cerrano C, Danovaro R. Changes in coral forest microbiomes predict the impact of marine heatwaves on habitat-forming species down to mesophotic depths. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 823:153701. [PMID: 35134420 DOI: 10.1016/j.scitotenv.2022.153701] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/31/2022] [Accepted: 02/02/2022] [Indexed: 06/14/2023]
Abstract
Global warming is causing the increase in intensity and frequency of heatwaves, which are often associated with mass mortality events of marine organisms from shallow and mesophotic rocky habitats, including gorgonians and other sessile organisms. We investigated the microbiome responses of the gorgonians Paramuricea clavata, Eunicella cavolini, and the red coral Corallium rubrum to the episodic temperature anomalies detected in the North Western Mediterranean, during August 2011. Although the investigated corals showed no signs of visible necrosis, the abundance of associated Bacteria and Archaea increased with increasing seawater temperature, suggesting their temperature-dependent proliferation. Coral microbiomes were highly sensitive to thermal anomaly amplitude and exhibited increased bacterial diversity to greater thermal shifts. This effect was explained by the decline of dominant bacterial members and the increase of new, rare and opportunistic taxa, including pathogens, revealing a direct effect of heatwave-induced alteration of the microbiomes and not a secondary consequence of coral necrosis.
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Affiliation(s)
- Cinzia Corinaldesi
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy.
| | - Stefano Varrella
- Department of Materials, Environmental Sciences and Urban Planning, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Michael Tangherlini
- Stazione Zoologica Anton Dohrn, Fano Marine Centre, Viale Adriatico 1-N, 61032 Fano, Italy
| | - Antonio Dell'Anno
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Sara Canensi
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Carlo Cerrano
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy
| | - Roberto Danovaro
- Department of Life and Environmental Sciences, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italy; Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy
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14
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Effects of Field Simulated Marine Heatwaves on Sedimentary Organic Matter Quantity, Biochemical Composition, and Degradation Rates. BIOLOGY 2022; 11:biology11060841. [PMID: 35741362 PMCID: PMC9229934 DOI: 10.3390/biology11060841] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/24/2022] [Accepted: 05/28/2022] [Indexed: 11/23/2022]
Abstract
Simple Summary Marine heatwaves (MHWs) are intensifying due to global warming. Based on their effects on biochemical reactions, they are also likely to affect coastal biogeochemistry. We investigated organic matter quantity, composition and degradation rates in nearshore sediments affected by simulated MHWs, with 1.5 and 5.0 °C anomalies, before and after 3 and 11 weeks from the release of an artificial warm water plume. MHWs enhanced organic loads (by >100%), with larger effects in the short-term under the highest temperature anomaly. Phytopigment contents increased (by 50–90%) in the short term but decreased to initial values in the longer one. The autotrophic and lipid contents decreased with time (by 15–50% 53–79%, respectively), suggesting a drop in the nutritional quality of organic matter, along with a slowdown of its turnover. We contend that MHWs’ intensification will affect not only species and communities but will also alter sediment biogeochemistry and, possibly, the energy transfer towards higher trophic levels. Abstract Since rising temperature (T) will enhance biochemical reactions and coastal marine sediments are hotspots of carbon cycling, marine heatwaves’ (MHWs’) intensification caused by climate change will affect coastal biogeochemistry. We investigated the effects of MHWs on sediment organic matter (OM) in a nearshore locality (NW Sardinia, Mediterranean Sea) receiving an artificial warm water plume generating T anomalies of 1.5–5.0 °C. Sediments were collected before and after 3 and 11 weeks from the initial plume release. Both MHWs influenced sedimentary OM quantity, composition, and degradation rates, with major effects associated with the highest T anomaly after 3 weeks. Both MHWs enhanced sedimentary OM contents, with larger effects associated with the highest T anomaly. Phytopigment contents increased in the short term but dropped to initial levels after 11 weeks, suggesting the occurrence of thermal adaptation or stress of microphytobenthos. In the longer term we observed a decrease in the nutritional quality of OM and a slowdown of its turnover mediated by extracellular enzymes, suggestive of a decreased ecosystem functioning. We anticipate that intensification of MHWs will affect benthic communities not only through direct effects on species tolerance but also by altering benthic biogeochemistry and the efficiency of energy transfer towards higher trophic levels.
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15
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Aurelle D, Thomas S, Albert C, Bally M, Bondeau A, Boudouresque C, Cahill AE, Carlotti F, Chenuil A, Cramer W, Davi H, De Jode A, Ereskovsky A, Farnet A, Fernandez C, Gauquelin T, Mirleau P, Monnet A, Prévosto B, Rossi V, Sartoretto S, Van Wambeke F, Fady B. Biodiversity, climate change, and adaptation in the Mediterranean. Ecosphere 2022. [DOI: 10.1002/ecs2.3915] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Didier Aurelle
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO Marseille France
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, CNRS Sorbonne Université, EPHE Paris France
| | - Séverine Thomas
- Aix Marseille Université, Labex‐OT‐Med Aix‐en‐Provence France
| | - Cécile Albert
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
| | - Marc Bally
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO Marseille France
| | - Alberte Bondeau
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
| | | | | | - François Carlotti
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO Marseille France
| | - Anne Chenuil
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
| | - Wolfgang Cramer
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
| | - Hendrik Davi
- INRAE, Ecologie des Forêts Méditerranéennes (URFM) Avignon France
| | - Aurélien De Jode
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
- Department of Marine Sciences‐Tjärnö University of Gothenburg, Tjärnö Marine Laboratory Gothenburg Sweden
| | - Alexander Ereskovsky
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
- Saint‐Petersburg State University St. Petersburg Russia
| | - Anne‐Marie Farnet
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
| | | | - Thierry Gauquelin
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
| | - Pascal Mirleau
- Aix Marseille Univ, Avignon Université, CNRS, IRD, IMBE Marseille France
| | | | | | - Vincent Rossi
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO Marseille France
| | | | - France Van Wambeke
- Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO Marseille France
| | - Bruno Fady
- INRAE, Ecologie des Forêts Méditerranéennes (URFM) Avignon France
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16
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Carugati L, Moccia D, Bramanti L, Cannas R, Follesa MC, Salvadori S, Cau A. Deep-Dwelling Populations of Mediterranean Corallium rubrum and Eunicella cavolini: Distribution, Demography, and Co-Occurrence. BIOLOGY 2022; 11:333. [PMID: 35205199 PMCID: PMC8869470 DOI: 10.3390/biology11020333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/08/2022] [Accepted: 02/15/2022] [Indexed: 11/16/2022]
Abstract
Corallium rubrum and Eunicella cavolini are two octocorals, reported as co-occurring species in the deep rocky habitats of the Mediterranean Sea with a high hydrodynamic and moderate eutrophication. Their spatial distribution and demography in the deep sea are mainly affected by temperature and direct and indirect anthropogenic activities; however, knowledge of the factors that potentially influence their co-existence is scarce. This paper provides novel data on the distribution and demography of these two species, at depths between 50 and 290 m in the Western Mediterranean Sea, providing insights on their co-occurrence. Both species exhibited the highest population density at deeper sites (>150 m), showing an inverse size-density relation. Density values ranged from 0.03 colonies m-2 to 32 and 80 col. m-2 for yellow gorgonian and red coral, respectively. The two species co-occurred in 13% of the total frames examined, mostly dwelling between 120 and 160 m depth. Distance-based linear modeling (DistLM) emphasized that when co-occurring the variability of the two species' densities were significantly driven by the density-rather than the morphology (i.e., height)-of the other species. We stress the need for further studies to elucidate the possible mutual effects of suspension feeders and to test the role of different environmental factors potentially influencing inter-specific relationships.
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Affiliation(s)
- Laura Carugati
- Department of Life and Environmental Sciences, University of Cagliari, Via T. Fiorelli 1, 09126 Cagliari, Italy; (D.M.); (R.C.); (M.C.F.); (S.S.); (A.C.)
| | - Davide Moccia
- Department of Life and Environmental Sciences, University of Cagliari, Via T. Fiorelli 1, 09126 Cagliari, Italy; (D.M.); (R.C.); (M.C.F.); (S.S.); (A.C.)
| | - Lorenzo Bramanti
- Laboratoire d’Ecogeochimie des Environnements Benthiques (LECOB), Sorbonne Universites, Université Pierre-et-Marie-Curie, Centre National de la Recherche Scientifique (CNRS), Observatoire Oceanologique, F-66650 Banyuls sur Mer, France;
| | - Rita Cannas
- Department of Life and Environmental Sciences, University of Cagliari, Via T. Fiorelli 1, 09126 Cagliari, Italy; (D.M.); (R.C.); (M.C.F.); (S.S.); (A.C.)
| | - Maria Cristina Follesa
- Department of Life and Environmental Sciences, University of Cagliari, Via T. Fiorelli 1, 09126 Cagliari, Italy; (D.M.); (R.C.); (M.C.F.); (S.S.); (A.C.)
| | - Susanna Salvadori
- Department of Life and Environmental Sciences, University of Cagliari, Via T. Fiorelli 1, 09126 Cagliari, Italy; (D.M.); (R.C.); (M.C.F.); (S.S.); (A.C.)
| | - Alessandro Cau
- Department of Life and Environmental Sciences, University of Cagliari, Via T. Fiorelli 1, 09126 Cagliari, Italy; (D.M.); (R.C.); (M.C.F.); (S.S.); (A.C.)
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17
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Local adaptation to climate anomalies relates to species phylogeny. Commun Biol 2022; 5:143. [PMID: 35177761 PMCID: PMC8854402 DOI: 10.1038/s42003-022-03088-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 01/28/2022] [Indexed: 12/02/2022] Open
Abstract
Climatic anomalies are increasing in intensity and frequency due to rapid rates of global change, leading to increased extinction risk for many species. The impacts of anomalies are likely to vary between species due to different degrees of sensitivity and extents of local adaptation. Here, we used long-term butterfly monitoring data of 143 species across six European bioclimatic regions to show how species’ population dynamics have responded to local or globally-calculated climatic anomalies, and how species attributes mediate these responses. Contrary to expectations, degree of apparent local adaptation, estimated from the relative population sensitivity to local versus global anomalies, showed no associations with species mobility or reproductive rate but did contain a strong phylogenetic signal. The existence of phylogenetically-patterned local adaptation to climate has important implications for forecasting species responses to current and future climatic conditions and for developing appropriate conservation practices. Melero et al. investigate butterfly responses to climatic anomalies from long-term monitoring observations in the field. They found the degree of adaptation to local fluctuations in climate had a strong phylogenetic signal but was not associated with mobility or reproductive rate of a species.
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18
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Cebrian E, Linares C, Garrabou J. Warming may increase the vulnerability of calcareous algae to bioinvasions. MARINE POLLUTION BULLETIN 2021; 173:113099. [PMID: 34798431 DOI: 10.1016/j.marpolbul.2021.113099] [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: 02/10/2021] [Revised: 10/07/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Understanding the interactions between various stressors, and the resulting cumulative impacts they exert, is essential in order to predict the potential resilience of marine habitats to climate change. Crustose coralline algae (CCA) are a major calcifying component of marine habitats, from tropical to polar oceans, and play a central role as ecosystem engineers in many rocky reefs. These species are increasingly threatened by the stress of climate change. However, the effects of other stressors linked to global change, such as invasive species, have scarcely been addressed. We have studied the interactive effects of invasive algae and global warming on CCA, combining observational and experimental approaches. CCA sensitivity to invasive algae is heightened when they are concurrently exposed to elevated seawater temperature, and the interaction between these two stressors triggers drastic synergistic effects on CCA. The reduction and eventual disappearance of these "ecosystem foundation species" may undermine ecological functioning, leading to the disappearance and/or fragmentation of the communities associated with them.
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Affiliation(s)
- E Cebrian
- Institute of Aquatic Ecology, University of Girona, Girona, Spain; Centre d'Estudis Avançats de Blanes, Consejo Superior de Investigaciones Científicas (CEAB-CSIC), Spain.
| | - C Linares
- Department of Evolutionary Biology, Ecology and Environmental Sciences, Institute for Research on Biodiversity (IRBio), University of Barcelona, Barcelona, Spain
| | - J Garrabou
- Institut de Ciències del Mar-Consell Superior d'Investigacions Científiques, Passeig Marítim de la Barceloneta, Barcelona, Spain; Aix Marseille Univ., University of Toulon, CNRS, IRD, MIO UM 110, Marseille, France
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19
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Diversity Loss in Coralligenous Structuring Species Impacted by Fishing Gear and Marine Litter. DIVERSITY 2021. [DOI: 10.3390/d13070331] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Coralligenous structuring species (CSS) form a group of marine megabenthic species with an engineering capacity. Since they are highly vulnerable to anthropogenic activities, they have been selected for the Marine Strategy Framework Directive (MSFD) monitoring programs. The pressure and impact of fishing gear and marine litter on these species were evaluated through the image analysis of 54 remotely operated vehicle (ROV) routes along the Campania coasts (Tyrrhenian Sea, Italy). CSS density was calculated as the number of colonies/100 m2. Anthropogenic pressure was estimated as the frequency of frames showing longline, nets, other gear, plastic objects, metal objects, and other litter; while the impact was expressed as the frequency showing necrosis/epibiosis, broken/upturned and covered/entangled colonies. Cnidaria dominate in the Napoli, Campanella and Capri areas, while Bryozoa dominate in Cilento N and Cilento S areas. Campanella and Capri appeared to be the least heterogeneous despite their higher CSS densities, which was possibly related to the dominance of a few species. These areas were the most affected by showing the highest numbers of fishing gear (longlines) and marine litter (metal objects) recorded, amongst which longlines are the most abundant. In addition, these fishing areas are either close to a large urban center or located along popular touristic routes. In all the areas, colonies with necrosis/epibiosis (CNE) impact are present with low-moderate values, while the category gears covering/entangling (GCE) impact prevails in the Campanella and Capri areas, and this is strictly connected to the high presence of fishing gear.
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Piazzi L, Cinti MF, Guala I, Grech D, La Manna G, Pansini A, Pinna F, Stipcich P, Ceccherelli G. Variations in coralligenous assemblages from local to biogeographic spatial scale. MARINE ENVIRONMENTAL RESEARCH 2021; 169:105375. [PMID: 34111774 DOI: 10.1016/j.marenvres.2021.105375] [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: 03/12/2021] [Revised: 05/17/2021] [Accepted: 05/23/2021] [Indexed: 06/12/2023]
Abstract
The present study aims at contributing to the knowledge of the spatial variability of coralligenous reefs through the evaluation of patterns ranging from local to biogeographic scale around the island of Sardinia. The coralligenous reef assemblages of six areas were studied through a hierarchical sampling design: three sites per area were selected, in each site three plots were sampled and in each plot ten photographic samples were collected. The structure of coralligenous reefs across closed biogeographic regions is described, highlighting that nearly pristine assemblages, although characterized by similar high diversity, can be either dominated by animals, such as gorgonians and bryozoans, or macroalgae. The observed variations seem largely related to biogeographic patterns rather than spatial distance, supporting the need to identify specific reference conditions to assess the ecological quality of this habitat depending on the biogeographic area to be monitored.
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Affiliation(s)
- L Piazzi
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100, Sassari, Italy.
| | - M F Cinti
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100, Sassari, Italy
| | - I Guala
- IMC - International Marine Centre, Loc. Sa Mardini, Torregrande, 09170, Oristano, Italy
| | - D Grech
- IMC - International Marine Centre, Loc. Sa Mardini, Torregrande, 09170, Oristano, Italy
| | - G La Manna
- MareTerra Onlus - Environmental Research and Conservation, Regione Sa Londra 9, 07041, Alghero (SS), Italy
| | - A Pansini
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100, Sassari, Italy
| | - F Pinna
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100, Sassari, Italy
| | - P Stipcich
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100, Sassari, Italy
| | - G Ceccherelli
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100, Sassari, Italy
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21
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Casoli E, Ventura D, Mancini G, Cardone S, Farina F, Donnini L, Pace DS, Shaul R, Belluscio A, Ardizzone G. Rehabilitation of Mediterranean animal forests using gorgonians from fisheries by‐catch. Restor Ecol 2021. [DOI: 10.1111/rec.13465] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Edoardo Casoli
- Department of Environmental Biology Sapienza University of Rome Piazzale Aldo Moro, 5 Rome 00185 Italy
- Centro Interuniversitario di Biologia Marina ed Ecologia Applicata Viale N. Sauro 4 Livorno I‐57128 Italy
| | - Daniele Ventura
- Department of Environmental Biology Sapienza University of Rome Piazzale Aldo Moro, 5 Rome 00185 Italy
- Centro Interuniversitario di Biologia Marina ed Ecologia Applicata Viale N. Sauro 4 Livorno I‐57128 Italy
| | - Gianluca Mancini
- Department of Environmental Biology Sapienza University of Rome Piazzale Aldo Moro, 5 Rome 00185 Italy
| | - Sara Cardone
- Centro Interuniversitario di Biologia Marina ed Ecologia Applicata Viale N. Sauro 4 Livorno I‐57128 Italy
| | - Fulvia Farina
- Centro Interuniversitario di Biologia Marina ed Ecologia Applicata Viale N. Sauro 4 Livorno I‐57128 Italy
| | - Lorenzo Donnini
- Centro Interuniversitario di Biologia Marina ed Ecologia Applicata Viale N. Sauro 4 Livorno I‐57128 Italy
| | - Daniela Silvia Pace
- Department of Environmental Biology Sapienza University of Rome Piazzale Aldo Moro, 5 Rome 00185 Italy
| | - Richard Shaul
- Sea Byte Inc. P.O. Box 14069 Bradenton Florida 34209 U.S.A
| | - Andrea Belluscio
- Department of Environmental Biology Sapienza University of Rome Piazzale Aldo Moro, 5 Rome 00185 Italy
- Centro Interuniversitario di Biologia Marina ed Ecologia Applicata Viale N. Sauro 4 Livorno I‐57128 Italy
| | - Giandomenico Ardizzone
- Department of Environmental Biology Sapienza University of Rome Piazzale Aldo Moro, 5 Rome 00185 Italy
- Centro Interuniversitario di Biologia Marina ed Ecologia Applicata Viale N. Sauro 4 Livorno I‐57128 Italy
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22
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Gómez‐Gras D, Linares C, Dornelas M, Madin JS, Brambilla V, Ledoux J, López‐Sendino P, Bensoussan N, Garrabou J. Climate change transforms the functional identity of Mediterranean coralligenous assemblages. Ecol Lett 2021; 24:1038-1051. [PMID: 33728823 PMCID: PMC8252474 DOI: 10.1111/ele.13718] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 12/18/2022]
Abstract
Quantifying changes in functional community structure driven by disturbance is critical to anticipate potential shifts in ecosystem functioning. However, how marine heatwaves (MHWs) affect the functional structure of temperate coral-dominated communities is poorly understood. Here, we used five long-term (> 10 years) records of Mediterranean coralligenous assemblages in a multi-taxa, trait-based analysis to investigate MHW-driven changes in functional structure. We show that, despite stability in functional richness (i.e. the range of species functional traits), MHW-impacted assemblages experienced long-term directional changes in functional identity (i.e. their dominant trait values). Declining traits included large sizes, long lifespans, arborescent morphologies, filter-feeding strategies or calcified skeletons. These traits, which were mostly supported by few sensitive and irreplaceable species from a single functional group (habitat-forming octocorals), disproportionally influence certain ecosystem functions (e.g. 3D-habitat provision). Hence, MHWs are leading to assemblages that are deficient in key functional traits, with likely consequences for the ecosystem functioning.
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Affiliation(s)
- Daniel Gómez‐Gras
- Departament de Biologia MarinaInstitut de Ciències del Mar (CSIC)BarcelonaSpain
| | - Cristina Linares
- Departament de Biologia EvolutivaEcologia i Ciències AmbientalsInstitut de Recerca de la Biodiversitat (IRBIO)Universitat de BarcelonaBarcelonaSpain
| | - Maria Dornelas
- Centre for Biological Diversity and Scottish Oceans InstituteSchool of BiologyUniversity of StAndrews, St AndrewsUK
| | - Joshua S. Madin
- Hawai‘i Institute of Marine BiologyUniversity of Hawai‘i at MānoaKaneoheHIUSA
| | - Viviana Brambilla
- Centre for Biological Diversity and Scottish Oceans InstituteSchool of BiologyUniversity of StAndrews, St AndrewsUK
| | - Jean‐Baptiste Ledoux
- Centro Interdisciplinar de Investigação Marinha e Ambiental (CIIMAR)PortoPortugal
| | - Paula López‐Sendino
- Departament de Biologia MarinaInstitut de Ciències del Mar (CSIC)BarcelonaSpain
| | | | - Joaquim Garrabou
- Departament de Biologia MarinaInstitut de Ciències del Mar (CSIC)BarcelonaSpain
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23
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Piazzi L, Cecchi E, Cinti MF, Ceccherelli G. Extreme events and conservation of subtidal habitats: Effects of a rainfall flood on coralligenous reefs. MARINE POLLUTION BULLETIN 2021; 165:112106. [PMID: 33548681 DOI: 10.1016/j.marpolbul.2021.112106] [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: 07/16/2020] [Revised: 09/27/2020] [Accepted: 01/22/2021] [Indexed: 06/12/2023]
Abstract
The increase of the intensity and frequency of rainfall-dominated flood is considered a main effect of climate change. The present study evaluated the effect of a rainfall flood event on coralligenous reefs. The flooded site was compared to three control sites using a Before/After-Control/Impact (BACI) design. Sites were sampled using the STAR (STAndaRdized coralligenous evaluation procedure) approach and three ecological indices (ESCA, COARSE and ISLA) were calculated. At the disturbed site the number of species per sample, beta diversity, sensitivity levels of assemblages and the values of the three indices were lower after the flooding event, while the same variables did not decrease at the control sites. Algal turf and Dictyotales increased at the disturbed sites after the flood event, while Udoteaceae, erect sponges, bryozoans and Corallium rubrum decreased. This study provides evidence for identifying floods as a further cause of degradation for the coralligenous reef assemblages.
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Affiliation(s)
- L Piazzi
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100 Sassari, Italy.
| | - E Cecchi
- ARPAT - Agenzia Regionale per la Protezione Ambientale della Toscana, Via Marradi 114, 57126 Livorno, Italy
| | - M F Cinti
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100 Sassari, Italy
| | - G Ceccherelli
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Piandanna 4, 07100 Sassari, Italy
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24
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Animal Forest Mortality: Following the Consequences of a Gorgonian Coral Loss on a Mediterranean Coralligenous Assemblage. DIVERSITY 2021. [DOI: 10.3390/d13030133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this work, the consequences of a local gorgonian coral mortality on the whole coralligenous assemblage were studied. A Before/After-Control/Impact sampling design was used: the structure of the coralligenous assemblage was compared before and after the gorgonian mortality event at the mortality site and two control sites. At the mortality site, a relevant decrease in alpha and beta diversity occurred, with a shift from a stratified assemblage characterized by gorgonians and other invertebrates to an assemblage dominated by algal turfs; conversely, neither significant variations of the structure nor decrease in biodiversity were observed at the control sites. The assemblage shift involved the main taxa in different times: in autumn 2018, a large proportion of the plexaurid coral Paramuricea clavata died, but no significant changes were observed in the structure of the remaining assemblage. Then, in autumn 2019, algal turfs increased significantly and, one year later, the abundance of the gorgonian Eunicella cavolini and bryozoans collapsed. Although the mechanisms of the assemblage shift following gorgonian loss will remain uncertain and a cause-effect relationship cannot be derived, results suggest the need for detecting signs of gorgonian forests stress in monitoring programs, which should be considered early indicators of their condition. in the coralligenous monitoring programs for detecting any sign of gorgonian forests stress which should be considered an early indicator of the assemblage condition.
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25
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Wu J, Li M, Zhang X, Fiedler S, Gao Q, Zhou Y, Cao W, Hassan W, Mărgărint MC, Tarolli P, Tietjen B. Disentangling climatic and anthropogenic contributions to nonlinear dynamics of alpine grassland productivity on the Qinghai-Tibetan Plateau. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 281:111875. [PMID: 33378737 DOI: 10.1016/j.jenvman.2020.111875] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 12/06/2020] [Accepted: 12/19/2020] [Indexed: 06/12/2023]
Abstract
Alpine grasslands on the Qinghai-Tibetan Plateau are sensitive and vulnerable to climate change and human activities. Climate warming and overgrazing have already caused degradation in a large fraction of alpine grasslands on this plateau. However, it remains unclear how human activities (mainly livestock grazing) regulates vegetation dynamics under climate change. Here, alpine grassland productivity (substituted with the normalized difference vegetation index, NDVI) is hypothesized to vary in a nonlinear trajectory to follow climate fluctuations and human disturbances. With generalized additive mixed modelling (GAMM) and residual-trend (RESTREND) analysis together, both magnitude and direction of climatic (in terms of temperature, precipitation, and radiation) and anthropogenic impacts on NDVI variation were examined across alpine meadows, steppes, and desert-steppes on the Qinghai-Tibetan Plateau. The results revealed that accelerating warming and greening, respectively, took place in 76.2% and 78.8% of alpine grasslands on the Qinghai-Tibetan Plateau. The relative importance of temperature, precipitation, and radiation impacts was comparable, between 20.4% and 24.8%, and combined to explain 66.2% of NDVI variance at the pixel scale. The human influence was strengthening and weakening, respectively, in 15.5% and 14.3% of grassland pixels, being slightly larger than any sole climatic variable across the entire plateau. Anthropogenic and climatic factors can be in opposite ways to affect alpine grasslands, even within the same grassland type, likely regulated by plant community assembly and species functional traits. Therefore, the underlying mechanisms of how plant functional diversity regulates nonlinear ecosystem response to climatic and anthropogenic stresses should be carefully explored in the future.
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Affiliation(s)
- Jianshuang Wu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, 100081, Beijing, China; Freie Universität Berlin, Institute of Biology, Theoretical Ecology, 14195, Berlin, Germany.
| | - Meng Li
- Lhasa National Ecological Research Station, Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 100101, Beijing, China; School of Geographic Sciences, Nantong University, 226007, Nantong, Jiangsu Province, China
| | - Xianzhou Zhang
- Lhasa National Ecological Research Station, Key Laboratory of Ecosystem Network Observation and Modelling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 100101, Beijing, China
| | - Sebastian Fiedler
- Freie Universität Berlin, Institute of Biology, Theoretical Ecology, 14195, Berlin, Germany; University Bayreuth, Department of Ecological Modelling, 95448, Bayreuth, Germany; Berlin Brandenburg Institute of Advanced Biodiversity Research, 14195, Berlin, Germany
| | - Qingzhu Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, 100081, Beijing, China
| | - Yuting Zhou
- Department of Geography, Oklahoma State University, OK, 74078, Stillwater, USA
| | - Wenfang Cao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, 100081, Beijing, China; Department of Land, Environment, Agriculture and Forestry, University of Padova, 35020, Legnaro (PD), Italy
| | - Waseem Hassan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, 100081, Beijing, China
| | - Mihai Ciprian Mărgărint
- Department of Geography, Geography and Geology Faculty, Alexandru Ioan Cuza University of Iaşi, 700505, RO, Iaşi, Romania
| | - Paolo Tarolli
- Department of Land, Environment, Agriculture and Forestry, University of Padova, 35020, Legnaro (PD), Italy
| | - Britta Tietjen
- Freie Universität Berlin, Institute of Biology, Theoretical Ecology, 14195, Berlin, Germany; Berlin Brandenburg Institute of Advanced Biodiversity Research, 14195, Berlin, Germany
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Choy E, Watanabe K, Williams B, Stone R, Etnoyer P, Druffel E, Lorenson T, Knaak M. Understanding growth and age of red tree corals (Primnoa pacifica) in the North Pacific Ocean. PLoS One 2020; 15:e0241692. [PMID: 33259493 PMCID: PMC7707513 DOI: 10.1371/journal.pone.0241692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 10/20/2020] [Indexed: 11/18/2022] Open
Abstract
Massive, long-lived deep-sea red tree corals (Primnoa pacifica) form a solid, layered axis comprised of calcite and gorgonin skeleton. They are abundant on the outer continental shelf and upper slope of the Northeast Pacific, providing habitat for fish and invertebrates. Yet, their large size and arborescent morphology makes them susceptible to disturbance from fishing activities. A better understanding of their growth patterns will facilitate in-situ estimates of population age structure and biomass. Here, we evaluated relationships between ages, growth rates, gross morphological characteristics, and banding patterns in 11 colonies collected from depths of ~141–335 m off the Alaskan coast. These corals ranged in age from 12 to 80 years old. They grew faster radially (0.33–0.74 mm year-1) and axially (2.41–6.39 cm year-1) than in previously measured older colonies, suggesting that growth in P. pacifica declines slowly with age, and that basal diameter and axial height eventually plateau. However, since coral morphology correlated with age in younger colonies (< century), we developed an in-situ age estimation technique for corals from the Northeast Pacific Ocean providing a non-invasive method for evaluating coral age without removing colonies from the population. Furthermore, we determined that annual bands provided the most accurate means for determining coral age in live-collected corals, relative to radiometric dating. Taken together, this work provides insight into P. pacifica growth patterns to inform coastal managers about the demographics of this ecologically important species. With this new ability to estimate the age of red tree corals in-situ, we can readily determine the age-class structure and consequently, the maturity status of thickets, using non-invasive video survey techniques when coupled with mensuration systems such as lasers or stereo-cameras. Enhanced surveys could identify which populations are most vulnerable to disturbance from human activities, and which should be highlighted for protection.
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Affiliation(s)
- Emma Choy
- W.M. Keck Science Department of Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA, United States of America
| | - Kelly Watanabe
- W.M. Keck Science Department of Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA, United States of America
| | - Branwen Williams
- W.M. Keck Science Department of Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA, United States of America
- * E-mail:
| | - Robert Stone
- Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, Juneau, AK, United States of America
| | - Peter Etnoyer
- NOAA National Centers for Coastal Ocean Science, Charleston, SC, United States of America
| | - Ellen Druffel
- Department of Earth System Science, University of California Irvine, Irvine, CA, United States of America
| | - Thomas Lorenson
- USGS Pacific Coastal and Marine Science Center, Santa Cruz, CA, United States of America
| | - Mary Knaak
- W.M. Keck Science Department of Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, CA, United States of America
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Piroddi C, Colloca F, Tsikliras AC. The living marine resources in the Mediterranean Sea Large Marine Ecosystem. ENVIRONMENTAL DEVELOPMENT 2020; 36:100555. [PMID: 33425671 PMCID: PMC7456280 DOI: 10.1016/j.envdev.2020.100555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/18/2020] [Accepted: 08/20/2020] [Indexed: 05/28/2023]
Abstract
The Mediterranean Large Marine Ecosystem (Med-LME) is a heterogeneous system that, despite its oligotrophic nature, has high diversity of marine species and high rate of endemism, making it one of the world hotspots for marine biodiversity. The basin is also among the most impacted Large Marine Ecosystems in the world due to the combined multiple stressors, such as fishing pressure, habitat loss and degradation, climate change, pollution, eutrophication and the introduction of invasive species. The complexity of Med-LME in its structure/function and dynamics, combined with the socio-political framework of the region make management of its marine resources quite challenging. This contribution aims at highlighting the importance of the Med-LME, with an emphasis on the state of its food web and of its fish/fisheries using modelling tools and national/international reporting. The purpose is to demonstrate the importance of an holistic framework, based on stock assessments and ecosystem based modelling approaches, to be adopted in support of management and conservation measures for the preservation and sustainable use of the Med-LME resources.
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Affiliation(s)
- Chiara Piroddi
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Francesco Colloca
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Athanassios C. Tsikliras
- Laboratory of Ichthyology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Gomes LEDO, da Silva EC. Drought periods driving bioinvasion on hard substrates at a tropical estuary, Eastern Brazil. MARINE POLLUTION BULLETIN 2020; 160:111563. [PMID: 32818820 DOI: 10.1016/j.marpolbul.2020.111563] [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: 06/01/2020] [Revised: 08/07/2020] [Accepted: 08/09/2020] [Indexed: 06/11/2023]
Abstract
During drier periods estuarine salinization can stimulate the colonization of marine organisms and further bioinvasion, therefore, may cause future ecological change. In this sense, we applied the Rapid Assessment Surveys (RAS) on natural and artificial hard substrates during the most intense drought period (between 2014 and 2016) since 1950, in a tropical estuary in Eastern Brazil. Through the estuary salinization the ascidian Didemnum psammatodes overgrow the dominant native taxa; this dominance taxa shift provided suitable habitat favorable for invasion of Ophiothela mirabilis across the estuary. Even the invasion starts on artificial substrates, the higher resilience of natural substrates were not enough to enable the establishment of invasive species. This baseline is the first evidence of bioinvasion influenced by climate change drought periods in tropical estuaries in South America, which is a great advance for the development of management strategies to mitigate this and future climate change scenarios.
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Affiliation(s)
- Luiz Eduardo de Oliveira Gomes
- Grupo de Ecologia Bêntica, Departamento de Oceanografia and Ecologia, Universidade Federal do Espírito Santo, Av. Fernando Ferrari, 514, Goiabeiras, Vitória, ES 29055-460, Brazil.
| | - Eder Carvalho da Silva
- Núcleo Integrado de Estudos em Zoologia, Instituto de Ciências Biológicas, Universidade Católica do Salvador, Av. Pinto de Aguiar, 2589, Pituaçu, Salvador, BA 40710-000, Brazil
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The constraint of ignoring the subtidal water climatology in evaluating the changes of coralligenous reefs due to heating events. Sci Rep 2020; 10:17332. [PMID: 33060776 PMCID: PMC7562739 DOI: 10.1038/s41598-020-74249-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 09/23/2020] [Indexed: 12/27/2022] Open
Abstract
Predicting community-level responses to seawater warming is a pressing goal of global change ecologists. How far such predictions can be derived from a fine gradient of thermal environments needs to be explored, even if ignoring water climatology does not allow estimating subtidal marine heat waves. In this study insights about the influence of the thermal environment on the coralligenous community structure were gained by considering sites (Sardinia, Italy) at different temperature conditions. Heating events were measured (by loggers at 18 m, 23 m, 28 m, 33 m and 38 m deep) and proxies for their duration (the maximum duration of events warmer than the 90th percentile temperature), intensity (the median temperature) and variability (the number of daily ΔT larger than the mean daily ΔT, and the number of heating events larger in ΔT than the 90th percentile ΔT) were selected by GAM models. Reliable predictions of decrease in coralligenous richness of taxa/morphological groups, with relevant increment in turfs and encrusting coralline algae abundance at the expenses of bryozoans were made. Associations to the different types of heating descriptor have highlighted the aspect (intensity, duration or variability) of the heating events and the threshold for each of them responsible for the trajectories of change.
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30
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Heydari M, Zeynali N, Omidipour R, Bazgir M, Kohzadian M, Prevosto B. Linkage between plant species diversity and soil-based functions along a post-agricultural succession is influenced by the vegetative forms. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:429. [PMID: 32535793 DOI: 10.1007/s10661-020-08378-z] [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: 03/30/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
There is a growing body of knowledge that ecosystem functions, in particular, soil-based ecosystem functions, are related to biodiversity. However, how plant species diversity influences soil-based functions along post-agricultural secondary succession is still a largely ignored question in Mediterranean semi-arid conditions. Therefore, we used the plant functional group approach to investigate the relationships between plant species diversity indices and soil-based functions including microbial biomass carbon (MBC), basal respiration (BR), and carbon sequestration (CS) across three different stages of the vegetation succession corresponding to ~ 5 years after agricultural abandonment, ~ 15 years after abandonment, and oak forests which represent the terminal stage. We also tested if these relationships are supported by the niche complementarity and selection effect hypotheses. The results showed that soil-based functions significantly increased with time since abandonment as BR, MBC, and CS increased respectively by 1.7, 1.5, and 2.7 times across the three successional stages. We also found strong correlations between the diversity indices and the soil-based functions BR, MBC, and CS which were positive for richness (R2 values 0.75, 0.74, and 0.75) and Shannon diversity (R2 values 0.61, 0.58, and 0.61) but negative for evenness (R2 values 0.38, 0.38, and 0.36 for, respectively). Similarly, richness and Shannon diversity of the different plant functional groups positively correlated with soil-based functions. However, contrasting results were found for evenness which positively correlated with soil-based functions for perennial grass only. We suggested that increasing the diversity of plant species and facilitating dominant species would be needed to improve the soil-based ecosystem functions after abandonment of degraded soils. This study also revealed that the mechanisms behind the relationships between biodiversity and ecosystem functions were influenced by the vegetative forms.
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Affiliation(s)
- Mehdi Heydari
- Department of Forest Science, Faculty of Agriculture, Ilam University, Ilam, Iran.
| | - Nasim Zeynali
- Department of Forest Science, Faculty of Agriculture, Ilam University, Ilam, Iran
| | - Reza Omidipour
- Department of Rangeland and Watershed Management, Faculty of Agriculture, Ilam University, Ilam, Iran
| | - Masoud Bazgir
- Department of Soil Science, Faculty of Agriculture, Ilam University, Ilam, Iran
| | | | - Bernard Prevosto
- INRAE, Aix Marseille Univ., UR RECOVER, Mediterranean Ecosystems and Risks, Aix-en-Provence, France
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Bianchi CN, Azzola A, Bertolino M, Betti F, Bo M, Cattaneo-Vietti R, Cocito S, Montefalcone M, Morri C, Oprandi A, Peirano A, Bavestrello G. Consequences of the marine climate and ecosystem shift of the 1980-90s on the Ligurian Sea biodiversity (NW Mediterranean). EUROPEAN ZOOLOGICAL JOURNAL 2019. [DOI: 10.1080/24750263.2019.1687765] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- C. N. Bianchi
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - A. Azzola
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - M. Bertolino
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - F. Betti
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - M. Bo
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - R. Cattaneo-Vietti
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - S. Cocito
- ENEA (Italian Agency for New Technologies, Energy and Sustainable Economic Development), Marine Environment Research Centre, La Spezia, Italy
| | - M. Montefalcone
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - C. Morri
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - A. Oprandi
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
| | - A. Peirano
- ENEA (Italian Agency for New Technologies, Energy and Sustainable Economic Development), Marine Environment Research Centre, La Spezia, Italy
| | - G. Bavestrello
- DiSTAV (Department of Earth, Environmental and Life Sciences), University of Genoa, Genova, Italy
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Catullo RA, Llewelyn J, Phillips BL, Moritz CC. The Potential for Rapid Evolution under Anthropogenic Climate Change. Curr Biol 2019; 29:R996-R1007. [DOI: 10.1016/j.cub.2019.08.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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