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Valladares MA, Fabres AA, Sánchez-Rodríguez F, Collado GA, Méndez MA. Population structure and microscale morphological differentiation in a freshwater snail from the Chilean Altiplano. BMC Ecol Evol 2024; 24:5. [PMID: 38184553 PMCID: PMC10770964 DOI: 10.1186/s12862-023-02196-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 12/26/2023] [Indexed: 01/08/2024] Open
Abstract
BACKGROUND The diversity and population genetic structure of many species have been shaped by historical and contemporary climatic changes. For the species of the South American Altiplano, the historical climatic changes are mainly related to the wet events of great magnitude and regional influence that occurred during the Pleistocene climatic oscillations (PCOs). In contrast, contemporary climate changes are associated with events of lesser magnitude and local influence related to intensifications of the South American Summer Monsoon (SASM). Although multiple studies have analyzed the effect of PCOs on the genetic patterns of highland aquatic species, little is known about the impact of contemporary climate changes in recent evolutionary history. Therefore, in this study, we investigated the change in population structure and connectivity using nuclear and mitochondrial markers throughout the distribution range of Heleobia ascotanensis, a freshwater Cochliopidae endemic to the Ascotán Saltpan. In addition, using geometric morphometric analyses, we evaluated the concomitance of genetic divergence and morphological differentiation. RESULTS The mitochondrial sequence analysis results revealed the presence of highly divergent co-distributed and geographically nested haplotypes. This pattern reflects an extension in the distribution of groups that previously would have differentiated allopatrically. These changes in distribution would have covered the entire saltpan and would be associated with the large-scale wet events of the PCOs. On the other hand, the microsatellite results defined five spatially isolated populations, separated primarily by geographic barriers. Contemporary gene flow analyses suggest that post-PCO, climatic events that would have connected all populations did not occur. The morphometric analyses results indicate that there is significant morphological differentiation in the populations that are more isolated and that present the greatest genetic divergence. CONCLUSIONS The contemporary population structure and morphological variation of H. ascotanensis mainly reflect the post-PCO climatic influence. Although both markers exhibit high genetic structuring, the microsatellite and morphology results show the preponderant influence of fragmentation in recent evolutionary history. The contemporary genetic pattern shows that in species that have limited dispersal capabilities, genetic discontinuities can appear rapidly, erasing signs of historical connectivity.
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Affiliation(s)
- Moisés A Valladares
- Laboratorio de Biología Evolutiva, Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Grupo de Biodiversidad y Cambio Global (GBCG), Departamento de Ciencias Básicas, Universidad del Bío-Bío, Chillán, Chile
| | - Alejandra A Fabres
- Laboratorio de Genética y Evolución, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Fernanda Sánchez-Rodríguez
- Laboratorio de Genética y Evolución, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Gonzalo A Collado
- Grupo de Biodiversidad y Cambio Global (GBCG), Departamento de Ciencias Básicas, Universidad del Bío-Bío, Chillán, Chile
- Departamento de Ciencias Básicas, Universidad del Bío-Bío, Chillán, Chile
| | - Marco A Méndez
- Laboratorio de Genética y Evolución, Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.
- Center of Applied Ecology and Sustainability (CAPES), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
- Institute of Ecology and Biodiversity (IEB), Faculty of Sciences, University of Chile, Universidad de Chile, Santiago, Chile.
- Universidad de Magallanes, Puerto Williams, Chile.
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2
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Black JG, van Rooyen ARJ, Heinze D, Gaffney R, Hoffmann AA, Schmidt TL, Weeks AR. Heterogeneous patterns of heterozygosity loss in isolated populations of the threatened eastern barred bandicoot (Perameles gunnii). Mol Ecol 2023. [PMID: 38013623 DOI: 10.1111/mec.17224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 11/06/2023] [Accepted: 11/14/2023] [Indexed: 11/29/2023]
Abstract
Identifying and analysing isolated populations is critical for conservation. Isolation can make populations vulnerable to local extinction due to increased genetic drift and inbreeding, both of which should leave imprints of decreased genome-wide heterozygosity. While decreases in heterozygosity among populations are frequently investigated, fewer studies have analysed how heterozygosity varies among individuals, including whether heterozygosity varies geographically along lines of discrete population structure or with continuous patterns analogous to isolation by distance. Here we explore geographical patterns of differentiation and individual heterozygosity in the threatened eastern barred bandicoot (Perameles gunnii) in Tasmania, Australia, using genomic data from 85 samples collected between 2008 and 2011. Our analyses identified two isolated demes undergoing significant genetic drift, and several areas of fine-scale differentiation across Tasmania. We observed discrete genetic structures across geographical barriers and continuous patterns of isolation by distance, with little evidence of recent or historical migration. Using a recently developed analytical pipeline for estimating autosomal heterozygosity, we found individual heterozygosities varied within demes by up to a factor of two, and demes with low-heterozygosity individuals also still contained those with high heterozygosity. Spatial interpolation of heterozygosity scores clarified these patterns and identified the isolated Tasman Peninsula as a location where low-heterozygosity individuals were more common than elsewhere. Our results provide novel insights into the relationship between isolation-driven genetic structure and local heterozygosity patterns. These may help improve translocation efforts, by identifying populations in need of assistance, and by providing an individualised metric for identifying source animals for translocation.
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Affiliation(s)
- John G Black
- School of Biosciences, The University of Melbourne, Melbourne, Victoria, Australia
| | | | - Dean Heinze
- Research Centre of Applied Alpine Ecology, La Trobe University, Melbourne, Victoria, Australia
| | - Robbie Gaffney
- Department of Natural Resources and Environment, Hobart, Tasmania, Australia
| | - Ary A Hoffmann
- School of Biosciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Thomas L Schmidt
- School of Biosciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Andrew R Weeks
- School of Biosciences, The University of Melbourne, Melbourne, Victoria, Australia
- Cesar Australia, Brunswick, Victoria, Australia
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3
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Thompson LM, Thurman LL, Cook CN, Beever EA, Sgrò CM, Battles A, Botero CA, Gross JE, Hall KR, Hendry AP, Hoffmann AA, Hoving C, LeDee OE, Mengelt C, Nicotra AB, Niver RA, Pérez‐Jvostov F, Quiñones RM, Schuurman GW, Schwartz MK, Szymanski J, Whiteley A. Connecting research and practice to enhance the evolutionary potential of species under climate change. CONSERVATION SCIENCE AND PRACTICE 2023. [DOI: 10.1111/csp2.12855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Laura M. Thompson
- U.S. Geological Survey (USGS), National Climate Adaptation Science Center and the University of Tennessee Knoxville Tennessee USA
| | | | - Carly N. Cook
- School of Biological Sciences Monash University Melbourne Australia
| | - Erik A. Beever
- USGS, Northern Rocky Mountain Science Center and Montana State University Bozeman Montana USA
| | - Carla M. Sgrò
- School of Biological Sciences Monash University Melbourne Australia
| | | | | | - John E. Gross
- National Park Service (NPS) Climate Change Response Program Fort Collins Colorado USA
| | | | | | | | | | - Olivia E. LeDee
- USGS, Midwest Climate Adaptation Science Center Saint Paul Minnesota USA
| | | | | | - Robyn A. Niver
- U.S. Fish and Wildlife Service (USFWS), Branch of Listing and Policy Support Bailey's Crossroads Virginia USA
| | | | - Rebecca M. Quiñones
- Massachusetts Division of Fisheries and Wildlife Westborough Massachusetts USA
| | - Gregor W. Schuurman
- National Park Service (NPS) Climate Change Response Program Fort Collins Colorado USA
| | - Michael K. Schwartz
- U.S. Forest Service, National Genomics Center for Wildlife and Fish Conservation Missoula Montana USA
| | - Jennifer Szymanski
- USFWS, Branch of SSA Science Support, Division of Endangered Species Onalaska Wisconsin USA
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4
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Mohr JJ, Harrison PA, Stanhope J, Breed MF. Is the genomics 'cart' before the restoration ecology 'horse'? Insights from qualitative interviews and trends from the literature. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210381. [PMID: 35757881 PMCID: PMC9234818 DOI: 10.1098/rstb.2021.0381] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 01/26/2022] [Indexed: 12/21/2022] Open
Abstract
Harnessing new technologies is vital to achieve global imperatives to restore degraded ecosystems. We explored the potential of genomics as one such tool. We aimed to understand barriers hindering the uptake of genomics, and how to overcome them, via exploratory interviews with leading scholars in both restoration and its sister discipline of conservation-a discipline that has successfully leveraged genomics. We also conducted an examination of research trends to explore some insights that emerged from the interviews, including publication trends that have used genomics to address restoration and conservation questions. Our qualitative findings revealed varied perspectives on harnessing genomics. For example, scholars in restoration without genomics experience felt genomics was over-hyped. Scholars with genomics experience emphatically emphasized the need to proceed cautiously in using genomics in restoration. Both genomics-experienced and less-experienced scholars called for case studies to demonstrate the benefits of genomics in restoration. These qualitative data contrasted with our examination of research trends, which revealed 70 restoration genomics studies, particularly studies using environmental DNA as a monitoring tool. We provide a roadmap to facilitate the uptake of genomics into restoration, to help the restoration sector meet the monumental task of restoring huge areas to biodiverse and functional ecosystems. This article is part of the theme issue 'Ecological complexity and the biosphere: the next 30 years'.
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Affiliation(s)
- Jakki J. Mohr
- College of Business, Institute on Ecosystems, University of Montana, Missoula, MT 59812, USA
| | - Peter A. Harrison
- School of Biological Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Jessica Stanhope
- School of Allied Health Science and Practice, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Martin F. Breed
- College of Science and Engineering, Flinders University, Bedford Park, SA 5042, Australia
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5
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Valladares MA, Fabres AA, Collado GA, Sáez PA, Méndez MA. Coping With Dynamism: Phylogenetics and Phylogeographic Analyses Reveal Cryptic Diversity in Heleobia Snails of Atacama Saltpan, Chile. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.869626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The species that inhabit systems highly affected by anthropic activities usually exhibit this external influence in their gene pool. In this study, we investigated the genetic patterns of populations of Heleobia atacamensis, a freshwater microgastropod endemic to the Atacama Saltpan, a system historically exposed to environmental changes, and currently subjected to conditions associated with metallic and non-metallic mining and other anthropic activities. Molecular analyses based on nuclear and mitochondrial sequences indicate that the saltpan populations are highly fragmented and that the genetic structure is mainly explained by historical geographic isolation, with little influence of contemporary factors. The microsatellite results suggest a moderate genetic diversity and sharp differentiation mediated by isolation by distance. Additionally, despite the high environmental heterogeneity detected and the marked historical dynamism of the region, our data reveal no signs of demographic instability. The patterns of contemporary gene flow suggest a change in the current genetic structure, based on the geographic proximity and specific environmental conditions for each population. Our results, highlight the role of fragmentation as a modulator of genetic diversity, but also suggest that the historical persistence of isolated populations in naturally dynamic environments could explain the apparent demographic stability detected.
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6
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Bernos TA, Jeffries KM, Mandrak NE. Aquatic invasive species specialists’ perceptions on the importance of genetic tools and concepts to inform management. Biol Invasions 2022. [DOI: 10.1007/s10530-022-02758-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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7
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Kershaw F, Bruford MW, Funk WC, Grueber CE, Hoban S, Hunter ME, Laikre L, MacDonald AJ, Meek MH, Mittan C, O´Brien D, Ogden R, Shaw RE, Vernesi C, Segelbacher G. The Coalition for Conservation Genetics: Working across organizations to build capacity and achieve change in policy and practice. CONSERVATION SCIENCE AND PRACTICE 2022. [DOI: 10.1111/csp2.12635] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
| | | | - W. Chris Funk
- Department of Biology, Graduate Degree Program in Ecology Colorado State University Fort Collins Colorado USA
| | - Catherine E. Grueber
- School of Life and Environmental Sciences, The University of Sydney New South Wales Australia
| | - Sean Hoban
- The Morton Arboretum, Center for Tree Science Lisle Illinois USA
| | - Margaret E. Hunter
- U.S. Geological Survey, Wetland and Aquatic Research Center Gainesville Florida USA
| | - Linda Laikre
- Department of Zoology, Division of Population Genetics Stockholm University Stockholm Sweden
| | - Anna J. MacDonald
- Research School of Biology The Australian National University Canberra Acton Australia
| | - Mariah H. Meek
- Department of Integrative Biology, AgBio Research, and Ecology, Evolution, and Behavior Program Michigan State University East Lansing Michigan USA
| | - Cinnamon Mittan
- Department of Ecology and Evolutionary Biology Cornell University Ithaca New York USA
| | | | - Rob Ogden
- Royal (Dick) School of Veterinary Studies and the Roslin Institute, University of Edinburgh Edinburgh UK
| | - Robyn E. Shaw
- Environmental and Conservation Sciences Murdoch University Perth Australia
| | - Cristiano Vernesi
- Forest Ecology Unit, Research and Innovation Centre‐Fondazione Edmund Mach San Michele all’Adige Trentino Italy
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8
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Neves JMM, Nolen ZJ, Fabré NN, Mott T, Pereira RJ. Genomic methods reveal independent demographic histories despite strong morphological conservatism in fish species. Heredity (Edinb) 2021; 127:323-333. [PMID: 34226671 PMCID: PMC8405619 DOI: 10.1038/s41437-021-00455-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 02/06/2023] Open
Abstract
Human overexploitation of natural resources has placed conservation and management as one of the most pressing challenges in modern societies, especially in regards to highly vulnerable marine ecosystems. In this context, cryptic species are particularly challenging to conserve because they are hard to distinguish based on morphology alone, and thus it is often unclear how many species coexist in sympatry, what are their phylogenetic relationships and their demographic history. We answer these questions using morphologically similar species of the genus Mugil that are sympatric in the largest coastal Marine Protected Area in the Tropical Southwestern Atlantic marine province. Using a sub-representation of the genome, we show that individuals are assigned to five highly differentiated genetic clusters that are coincident with five mitochondrial lineages, but discordant with morphological information, supporting the existence of five species with conserved morphology in this region. A lack of admixed individuals is consistent with strong genetic isolation between sympatric species, but the most likely species tree suggests that in one case speciation has occurred in the presence of interspecific gene flow. Patterns of genetic diversity within species suggest that effective population sizes differ up to two-fold, probably reflecting differences in the magnitude of population expansions since species formation. Together, our results show that strong morphologic conservatism in marine environments can lead to species that are difficult to distinguish morphologically but that are characterized by an independent evolutionary history, and thus that deserve species-specific management strategies.
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Affiliation(s)
- Jessika M M Neves
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Alagoas, Maceió, Alagoas, Brazil.
| | - Zachary J Nolen
- Division of Evolutionary Biology, Faculty of Biology II, Ludwig-Maximilians-Universität München, Grosshaderner Strasse 2, Planegg-Martinsried, Germany
- Department of Biology, Lund University, Lund, Sweden
| | - Nidia N Fabré
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Alagoas, Maceió, Alagoas, Brazil
| | - Tamí Mott
- Instituto de Ciências Biológicas e da Saúde, Universidade Federal de Alagoas, Maceió, Alagoas, Brazil
| | - Ricardo J Pereira
- Division of Evolutionary Biology, Faculty of Biology II, Ludwig-Maximilians-Universität München, Grosshaderner Strasse 2, Planegg-Martinsried, Germany.
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9
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Gargiulo R, Adamo M, Cribb PJ, Bartolucci F, Sarasan V, Alessandrelli C, Bona E, Ciaschetti G, Conti F, Di Cecco V, Di Martino L, Gentile C, Juan A, Magrini S, Mucciarelli M, Perazza G, Fay MF. Combining current knowledge of
Cypripedium calceolus
with a new analysis of genetic variation in Italian populations to provide guidelines for conservation actions. CONSERVATION SCIENCE AND PRACTICE 2021. [DOI: 10.1111/csp2.513] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
| | - Martino Adamo
- Department of Life Sciences and Systems Biology Università di Torino Torino Italy
| | | | - Fabrizio Bartolucci
- Floristic Research Center of the Apennine (University of Camerino – Gran Sasso and Laga Mountains National Park) Barisciano (L'Aquila) Italy
| | | | | | - Enzo Bona
- Centro Studi Naturalistici Bresciani, Museo di Scienze Naturali Brescia (BS) Italy
| | - Giampiero Ciaschetti
- Maiella National Park – Office for Plant Biodiversity Monitoring and Conservation Sulmona (AQ) Italy
| | - Fabio Conti
- Floristic Research Center of the Apennine (University of Camerino – Gran Sasso and Laga Mountains National Park) Barisciano (L'Aquila) Italy
| | - Valter Di Cecco
- Maiella National Park – Office for Plant Biodiversity Monitoring and Conservation Sulmona (AQ) Italy
| | - Luciano Di Martino
- Maiella National Park – Office for Plant Biodiversity Monitoring and Conservation Sulmona (AQ) Italy
| | - Carmelo Gentile
- Abruzzo, Lazio and Molise National Park viale Santa Lucia Pescasseroli (AQ) Italy
| | - Ana Juan
- Ciencias Ambientales y Recursos Naturales University of Alicante Alicante Spain
| | - Sara Magrini
- Tuscia Germplasm Bank, Tuscia University, largo dell'Università blocco C Viterbo Italy
| | - Marco Mucciarelli
- Department of Life Sciences and Systems Biology Università di Torino Torino Italy
| | | | - Michael F. Fay
- Royal Botanic Gardens, Kew Richmond United Kingdom
- School of Plant Biology, University of Western Australia Crawley Western Australia Australia
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10
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Burgess BT, Irvine RL, Howald GR, Russello MA. The Promise of Genetics and Genomics for Improving Invasive Mammal Management on Islands. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.704809] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Invasive species are major contributors to global biodiversity decline. Invasive mammalian species (IMS), in particular, have profound negative effects in island systems that contain disproportionally high levels of species richness and endemism. The eradication and control of IMS have become important conservation tools for managing species invasions on islands, yet these management operations are often subject to failure due to knowledge gaps surrounding species- and system-specific characteristics, including invasion pathways and contemporary migration patterns. Here, we synthesize the literature on ways in which genetic and genomic tools have effectively informed IMS management on islands, specifically associated with the development and modification of biosecurity protocols, and the design and implementation of eradication and control programs. In spite of their demonstrated utility, we then explore the challenges that are preventing genetics and genomics from being implemented more frequently in IMS management operations from both academic and non-academic perspectives, and suggest possible solutions for breaking down these barriers. Finally, we discuss the potential application of genome editing to the future management of invasive species on islands, including the current state of the field and why islands may be effective targets for this emerging technology.
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11
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Cook CN, Beever EA, Thurman LL, Thompson LM, Gross JE, Whiteley AR, Nicotra AB, Szymanski JA, Botero CA, Hall KR, Hoffmann AA, Schuurman GW, Sgrò CM. Supporting the adaptive capacity of species through more effective knowledge exchange with conservation practitioners. Evol Appl 2021; 14:1969-1979. [PMID: 34429742 PMCID: PMC8372063 DOI: 10.1111/eva.13266] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 05/27/2021] [Accepted: 06/06/2021] [Indexed: 01/28/2023] Open
Abstract
There is an imperative for conservation practitioners to help biodiversity adapt to accelerating environmental change. Evolutionary biologists are well-positioned to inform the development of evidence-based management strategies that support the adaptive capacity of species and ecosystems. Conservation practitioners increasingly accept that management practices must accommodate rapid environmental change, but harbour concerns about how to apply recommended changes to their management contexts. Given the interest from both conservation practitioners and evolutionary biologists in adjusting management practices, we believe there is an opportunity to accelerate the required changes by promoting closer collaboration between these two groups. We highlight how evolutionary biologists can harness lessons from other disciplines about how to foster effective knowledge exchange to make a substantive contribution to the development of effective conservation practices. These lessons include the following: (1) recognizing why practitioners do and do not use scientific evidence; (2) building an evidence base that will influence management decisions; (3) translating theory into a format that conservation practitioners can use to inform management practices; and (4) developing strategies for effective knowledge exchange. Although efforts will be required on both sides, we believe there are rewards for both practitioners and evolutionary biologists, not least of which is fostering practices to help support the long-term persistence of species.
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Affiliation(s)
- Carly N. Cook
- School of Biological SciencesMonash UniversityClaytonVICAustralia
| | - Erik A. Beever
- Northern Rocky Mountain Science CenterU.S. Geological SurveyBozemanMTUSA
- Department of EcologyMontana State UniversityBozemanMTUSA
| | - Lindsey L. Thurman
- Northwest Climate Adaptation Science CenterU.S. Geological SurveyCorvallisORUSA
| | - Laura M. Thompson
- National Climate Adaptation Science CenterU.S. Geological SurveyRestonVAUSA
- Department of Forestry, Wildlife and FisheriesUniversity of TennesseeKnoxvilleTNUSA
| | - John E. Gross
- Climate Change Response ProgramU.S. National Park ServiceFort CollinsCOUSA
| | - Andrew R. Whiteley
- Wildlife Biology ProgramDepartment of Ecosystem and Conservation SciencesFranke College of Forestry and ConservationUniversity of MontanaMissoulaMTUSA
| | - Adrienne B. Nicotra
- Division of Ecology and EvolutionResearch School of BiologyAustralian National UniversityCanberraACTAustralia
| | | | | | | | - Ary A. Hoffmann
- School of BioSciencesBio21 InstituteThe University of MelbourneMelbourneVICAustralia
| | | | - Carla M. Sgrò
- School of Biological SciencesMonash UniversityClaytonVICAustralia
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12
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Information about Human Evolution: An Analysis of News Published in Communication Media in Spanish between 2015 and 2017. PUBLICATIONS 2021. [DOI: 10.3390/publications9030028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The present study examines a sample of 220 pieces of news related to human evolution, written in Spanish and published over a period of two years, both in digital and print media. The aim of this study is to assess the rigor and coherence of the information in the news in our sample with scientific knowledge on the theory of evolution. To this end, errors and the incorrect use of concepts related to biological evolution are identified, classified according to criteria resulting from the review of previous studies, and finally, the frequency of errors identified in news published in print media is compared with that identified in digital media. The results presented allow us to highlight the significantly high frequency of errors in the news analyzed and the most frequent error categories. Results are discussed within the frame of the important role that scientific journalism plays in the processes of knowledge dissemination, in this case, related to human evolution.
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13
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Seaborn T, Griffith D, Kliskey A, Caudill CC. Building a bridge between adaptive capacity and adaptive potential to understand responses to environmental change. GLOBAL CHANGE BIOLOGY 2021; 27:2656-2668. [PMID: 33666302 DOI: 10.1111/gcb.15579] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Adaptive capacity is a topic at the forefront of environmental change research with roots in both social, ecological, and evolutionary science. It is closely related to the evolutionary biology concept of adaptive potential. In this systematic literature review, we: (1) summarize the history of these topics and related fields; (2) assess relationship(s) between the concepts among disciplines and the use of the terms in climate change research, and evaluate methodologies, metrics, taxa biases, and the geographic scale of studies; and (3) provide a synthetic conceptual framework to clarify concepts. Bibliometric analyses revealed the terms have been used most frequently in conservation and evolutionary biology journals, respectively. There has been a greater growth in studies of adaptive potential than adaptive capacity since 2001, but a greater geographical extent of adaptive capacity studies. Few studies include both, and use is often superficial. Our synthesis considers adaptive potential as one process contributing to adaptive capacity of complex systems, notes "sociological" adaptive capacity definitions include actions aimed at desired outcome (i.e., policies) as a system driver whereas "biological" definitions exclude such drivers, and suggests models of adaptive capacity require integration of evolutionary and social-ecological system components.
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Affiliation(s)
- Travis Seaborn
- Department of Fish and Wildlife Sciences, University of Idaho, Moscow, ID, USA
| | - David Griffith
- Center for Resilient Communities, University of Idaho, Moscow, ID, USA
| | - Andrew Kliskey
- Center for Resilient Communities, University of Idaho, Moscow, ID, USA
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14
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Leitwein M, Cayuela H, Bernatchez L. Associative Overdominance and Negative Epistasis Shape Genome-Wide Ancestry Landscape in Supplemented Fish Populations. Genes (Basel) 2021; 12:genes12040524. [PMID: 33916757 PMCID: PMC8065892 DOI: 10.3390/genes12040524] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/26/2021] [Accepted: 03/31/2021] [Indexed: 02/06/2023] Open
Abstract
The interplay between recombination rate, genetic drift and selection modulates variation in genome-wide ancestry. Understanding the selective processes at play is of prime importance toward predicting potential beneficial or negative effects of supplementation with domestic strains (i.e., human-introduced strains). In a system of lacustrine populations supplemented with a single domestic strain, we documented how population genetic diversity and stocking intensity produced lake-specific patterns of domestic ancestry by taking the species’ local recombination rate into consideration. We used 552 Brook Charr (Salvelinus fontinalis) from 22 small lacustrine populations, genotyped at ~32,400 mapped SNPs. We observed highly variable patterns of domestic ancestry between each of the 22 populations without any consistency in introgression patterns of the domestic ancestry. Our results suggest that such lake-specific ancestry patterns were mainly due to variable associative overdominance (AOD) effects among populations (i.e., potential positive effects due to the masking of possible deleterious alleles in low recombining regions). Signatures of AOD effects were also emphasized by highly variable patterns of genetic diversity among and within lakes, potentially driven by predominant genetic drift in those small isolated populations. Local negative effects such as negative epistasis (i.e., potential genetic incompatibilities between the native and the introduced population) potentially reflecting precursory signs of outbreeding depression were also observed at a chromosomal scale. Consequently, in order to improve conservation practices and management strategies, it became necessary to assess the consequences of supplementation at the population level by taking into account both genetic diversity and stocking intensity when available.
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15
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Prioritising source populations for supplementing genetic diversity of reintroduced southern brown bandicoots Isoodon obesulus obesulus. CONSERV GENET 2021. [DOI: 10.1007/s10592-021-01341-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Petit‐Marty N, Vázquez‐Luis M, Hendriks IE. Use of the nucleotide diversity in COI mitochondrial gene as an early diagnostic of conservation status of animal species. Conserv Lett 2020. [DOI: 10.1111/conl.12756] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Natalia Petit‐Marty
- School of Biological Sciences and Swire Institute of Marine Science. Kadoorie Biological Sciences Building The University of Hong Kong Hong Kong Hong Kong, SAR
- Global Change Research Group Mediterranean Institute for Advanced Studies (CSIC‐UIB) Esporles Baleares Spain
| | - Maite Vázquez‐Luis
- Instituto Español de Oceanografía (IEO) Centro Oceanográfico de Baleares Palma de Mallorca Spain
| | - Iris E. Hendriks
- Global Change Research Group Mediterranean Institute for Advanced Studies (CSIC‐UIB) Esporles Baleares Spain
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Cook CN, Sgrò CM. Conservation practitioners' understanding of how to manage evolutionary processes. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2019; 33:993-1001. [PMID: 30866093 DOI: 10.1111/cobi.13306] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 11/11/2018] [Accepted: 01/25/2019] [Indexed: 06/09/2023]
Abstract
Both academics and practitioners consider a lack of knowledge about evolutionary theory to be a general barrier to effectively managing genetic diversity. However, it is challenging to judge practitioners' level of understanding and how this influences their management decisions. Knowledge built through experience may be difficult for practitioners to articulate, but could nonetheless result in appropriate management strategies. To date, researchers have assessed only the explicit (formal) knowledge practitioners have of evolutionary concepts. To explore practitioners' understanding of evolutionary concepts, it is necessary to consider how they might apply explicit and implicit knowledge to their management decisions. Using an online survey, we asked Australian practitioners to respond to 2 common management scenarios in which there is strong evidence that managing genetic diversity can improve outcomes: managing small, isolated populations and sourcing seeds for restoration projects. In describing their approach to these scenarios, practitioners demonstrated a stronger understanding of the effective management of genetic diversity than the definitions of the relevant concepts. However, their management of genetic diversity within small populations was closer to best practice than for restoration projects. Moreover, the risks practitioners described in implementing best practice management were more likely to affect their approach to restoration than translocation projects. These findings provide evidence that strategies to build the capacity of practitioners to manage genetic diversity should focus on realistic management scenarios. Given that practitioners recognize the importance of adapting their practices and the strong evidence for the benefits of actively managing genetic diversity, there is hope that better engagement by evolutionary biologists with practitioners could facilitate significant shifts toward evolutionarily enlightened management.
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Affiliation(s)
- Carly N Cook
- School of Biological Sciences, Monash University, Clayton, VIC, 3800, Australia
| | - Carla M Sgrò
- School of Biological Sciences, Monash University, Clayton, VIC, 3800, Australia
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