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Afonso RO, Pina-Martins F, Friesen V, Sun Z, Campioni L, Madeiros J, Silva MC. No evidence of inbreeding depression despite a historical severe bottleneck in the endangered Bermuda petrel (Pterodroma cahow). J Hered 2023; 114:459-469. [PMID: 37162284 DOI: 10.1093/jhered/esad030] [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: 10/28/2022] [Accepted: 05/08/2023] [Indexed: 05/11/2023] Open
Abstract
The Bermuda petrel Pterodroma cahow is an island endemic seabird that belongs to the Procellariiformes, one of the most endangered orders of birds. Historical records suggest a significant population size decline following human settlement in Bermuda, bringing the species to near extinction. Since the 1950s, the population has been recovering aided by the implementation of an ongoing conservation plan. However, it still faces several threats, and negative genetic effects resulting from that drastic decline are to be expected, including inbreeding and genetic drift. We studied genetic diversity and levels of inbreeding, and their effects on individual fitness and mating choice. We also tested for a genetic signature of the recent demographic bottleneck. For this, we analyzed variation in thousands of nuclear single-nucleotide polymorphisms derived from double digest restriction site-associated DNA sequencing and 1 mitochondrial gene (cytochrome oxidase I). The results revealed that the Bermuda petrel suffered a recent genetic bottleneck and shows low mitochondrial diversity compared with other petrel species. Conversely, nuclear diversity was similar to that of other endangered petrels. Inbreeding levels were not high overall, although some individuals were highly inbred. However, we found no evidence that individual inbreeding or relatedness between mates affected hatching success, or that mate choice is influenced by kinship in this very small population.
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Affiliation(s)
- Rita O Afonso
- cE3c-Centre for Ecology, Evolution and Environmental Changes & CHANGE-Global Change and Sustainability Institute, Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Francisco Pina-Martins
- cE3c-Centre for Ecology, Evolution and Environmental Changes & CHANGE-Global Change and Sustainability Institute, Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - Vicki Friesen
- Department of Biology, Queen's University, Kingston, ON, Canada
| | - Zhengxin Sun
- Department of Biology, Queen's University, Kingston, ON, Canada
| | - Letizia Campioni
- MARE-Marine and Environmental Sciences Centre, Ispa-Instituto Universitário, Lisboa, Portugal
| | - Jeremy Madeiros
- Department of Environment and Natural Resources, Government of Bermuda, Hamilton, Bermuda
| | - Mónica C Silva
- cE3c-Centre for Ecology, Evolution and Environmental Changes & CHANGE-Global Change and Sustainability Institute, Departamento de Biologia Animal, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
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2
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Garzon F, Williams CT, Cochran JEM, Tanabe LK, Abdulla A, Berumen ML, Habis T, Marshall PA, Rodrigue M, Hawkes LA. A multi-method characterization of Elasmobranch & Cheloniidae communities of the north-eastern Red Sea and Gulf of Aqaba. PLoS One 2022; 17:e0275511. [PMID: 36178940 PMCID: PMC9524659 DOI: 10.1371/journal.pone.0275511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 09/19/2022] [Indexed: 11/18/2022] Open
Abstract
The Red Sea is particularly biodiverse, hosting high levels of endemism and numerous populations whose extinction risk is heightened by their relative isolation. Elasmobranchs and sea turtles have likely suffered recent declines in this region, although data on their distribution and biology are severely lacking, especially on the eastern side of the basin in Saudi Arabian waters. Here, we present sightings of elasmobranchs and sea turtles across the north-eastern Red Sea and Gulf of Aqaba collected through a combination of survey methods. Over 455 survey hours, we recorded 407 sightings belonging to 26 elasmobranch species and two sea turtle species, more than 75% of which are of conservation concern. We identified 4 species of rays and 9 species of sharks not previously recorded in Saudi Arabia and report a range extension for the pink whipray (Himantura fai) and the round ribbontail ray (Taeniurops meyeni) into the Gulf of Aqaba. High density of sightings of conservation significance, including green and hawksbill sea turtles and halavi guitarfish were recorded in bay systems along the eastern Gulf of Aqaba and the Saudi Arabian coastline bordering the north-eastern Red Sea, and many carcharhinid species were encountered at offshore seamounts in the region. Our findings provide new insights into the distribution patterns of megafaunal assemblages over smaller spatial scales in the region, and facilitate future research and conservation efforts, amidst ongoing, large-scale coastal developments in the north-eastern Red Sea and Gulf of Aqaba.
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Affiliation(s)
- Francesco Garzon
- MarAlliance, Ancon, Panama City, Panama
- Hatherley Laboratories, College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom
- * E-mail:
| | - Collin T. Williams
- Division of Biological and Environmental Science and Engineering, Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
| | - Jesse E. M. Cochran
- Division of Biological and Environmental Science and Engineering, Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
| | - Lyndsey K. Tanabe
- Division of Biological and Environmental Science and Engineering, Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
| | - Ameer Abdulla
- Saudi Water Sports Federation, Kingdom of Saudi Arabia
| | - Michael L. Berumen
- Division of Biological and Environmental Science and Engineering, Red Sea Research Center, King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia
| | - Thamer Habis
- Saudi Water Sports Federation, Kingdom of Saudi Arabia
| | | | | | - Lucy A. Hawkes
- Hatherley Laboratories, College of Life and Environmental Sciences, University of Exeter, Exeter, United Kingdom
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3
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Salmona J, Dayon J, Lecompte E, Karamanlidis AA, Aguilar A, Fernandez de Larrinoa P, Pires R, Mo G, Panou A, Agnesi S, Borrell A, Danyer E, Öztürk B, Tonay AM, Anestis AK, González LM, Dendrinos P, Gaubert P. The antique genetic plight of the Mediterranean monk seal ( Monachus monachus). Proc Biol Sci 2022; 289:20220846. [PMID: 36043283 PMCID: PMC9428542 DOI: 10.1098/rspb.2022.0846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 07/30/2022] [Indexed: 12/14/2022] Open
Abstract
Disentangling the impact of Late Quaternary climate change from human activities can have crucial implications on the conservation of endangered species. We investigated the population genetics and demography of the Mediterranean monk seal (Monachus monachus), one of the world's most endangered marine mammals, through an unprecedented dataset encompassing historical (extinct) and extant populations from the eastern North Atlantic to the entire Mediterranean Basin. We show that Cabo Blanco (Western Sahara/Mauritania), Madeira, Western Mediterranean (historical range) and Eastern Mediterranean regions segregate into four populations. This structure is probably the consequence of recent drift, combined with long-term isolation by distance (R2 = 0.7), resulting from prevailing short-distance (less than 500 km) and infrequent long-distance dispersal (less than 1500 km). All populations (Madeira especially), show high levels of inbreeding and low levels of genetic diversity, seemingly declining since historical time, but surprisingly not being impacted by the 1997 massive die-off in Cabo Blanco. Approximate Bayesian Computation analyses support scenarios combining local extinctions and a major effective population size decline in all populations during Antiquity. Our results suggest that the early densification of human populations around the Mediterranean Basin coupled with the development of seafaring techniques were the main drivers of the decline of Mediterranean monk seals.
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Affiliation(s)
- Jordi Salmona
- Laboratoire Évolution et Diversité Biologique, IRD-CNRS-UPS, Université Paul Sabatier, 118 route de Narbonne, Toulouse 31062, France
| | - Julia Dayon
- Laboratoire Évolution et Diversité Biologique, IRD-CNRS-UPS, Université Paul Sabatier, 118 route de Narbonne, Toulouse 31062, France
- CEFE, Université de Montpellier, CNRS, EPHE-PSL University, IRD, Montpellier, France
| | - Emilie Lecompte
- Laboratoire Évolution et Diversité Biologique, IRD-CNRS-UPS, Université Paul Sabatier, 118 route de Narbonne, Toulouse 31062, France
| | - Alexandros A. Karamanlidis
- MOm/Hellenic Society for the Study and Protection of the Monk seal, Solomou Strasse 18, Athens 10682, Greece
| | - Alex Aguilar
- IRBio and Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Diagonal 643, Barcelona 08028, Spain
| | | | - Rosa Pires
- Instituto das Florestas e Conservação da Natureza IP-RAM, Jardim Botânico da Madeira, Caminho do Meio, Bom Sucesso, Funchal, Madeira 9064-512, Portugal
| | - Giulia Mo
- Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA), Via Vitaliano Brancati 48, Rome 00144, Italy
| | - Aliki Panou
- Archipelagos - Environment and Development, Lourdata, Kefalonia 28100, Greece
| | - Sabrina Agnesi
- Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA), Via Vitaliano Brancati 48, Rome 00144, Italy
| | - Asunción Borrell
- IRBio and Department of Evolutionary Biology, Ecology and Environmental Sciences, Faculty of Biology, Universitat de Barcelona, Diagonal 643, Barcelona 08028, Spain
| | - Erdem Danyer
- Turkish Marine Research Foundation (TUDAV), PO Box 10, Beykoz, Istanbul, Turkey
| | - Bayram Öztürk
- Turkish Marine Research Foundation (TUDAV), PO Box 10, Beykoz, Istanbul, Turkey
- Faculty of Aquatic Sciences, Istanbul University, Kalenderhane Mah. Onaltı Mart Şehitleri Cad. No: 2 Fatih 34134 Istanbul, Turkey
| | - Arda M. Tonay
- Turkish Marine Research Foundation (TUDAV), PO Box 10, Beykoz, Istanbul, Turkey
- Faculty of Aquatic Sciences, Istanbul University, Kalenderhane Mah. Onaltı Mart Şehitleri Cad. No: 2 Fatih 34134 Istanbul, Turkey
| | | | - Luis M. González
- Subdirección General de Biodiversidad Terrestre y Marina, Ministerio para la Transición Ecológica y el Reto Demográfico, Pza. San Juan de la Cruz, 10, Madrid 28071, Spain
| | - Panagiotis Dendrinos
- MOm/Hellenic Society for the Study and Protection of the Monk seal, Solomou Strasse 18, Athens 10682, Greece
| | - Philippe Gaubert
- Laboratoire Évolution et Diversité Biologique, IRD-CNRS-UPS, Université Paul Sabatier, 118 route de Narbonne, Toulouse 31062, France
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Hale AM, Hein CD, Straw BR. Acoustic and Genetic Data Can Reduce Uncertainty Regarding Populations of Migratory Tree-Roosting Bats Impacted by Wind Energy. Animals (Basel) 2021; 12:81. [PMID: 35011186 PMCID: PMC8749617 DOI: 10.3390/ani12010081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 11/17/2022] Open
Abstract
Wind turbine-related mortality may pose a population-level threat for migratory tree-roosting bats, such as the hoary bat (Lasiurus cinereus) in North America. These species are dispersed within their range, making it impractical to estimate census populations size using traditional survey methods. Nonetheless, understanding population size and trends is essential for evaluating and mitigating risk from wind turbine mortality. Using various sampling techniques, including systematic acoustic sampling and genetic analyses, we argue that building a weight of evidence regarding bat population status and trends is possible to (1) assess the sustainability of mortality associated with wind turbines; (2) determine the level of mitigation required; and (3) evaluate the effectiveness of mitigation measures to ensure population viability for these species. Long-term, systematic data collection remains the most viable option for reducing uncertainty regarding population trends for migratory tree-roosting bats. We recommend collecting acoustic data using the statistically robust North American Bat Monitoring Program (NABat) protocols and that genetic diversity is monitored at repeated time intervals to show species trends. There are no short-term actions to resolve these population-level questions; however, we discuss opportunities for relatively short-term investments that will lead to long-term success in reducing uncertainty.
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Affiliation(s)
- Amanda M. Hale
- Department of Biology, Texas Christian University, Fort Worth, TX 76129, USA
| | - Cris D. Hein
- National Renewable Energy Laboratory, Arvada, CO 80007, USA;
| | - Bethany R. Straw
- Fort Collins Science Center, U. S. Geological Survey, Fort Collins, CO 80526, USA;
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Bubac CM, Cullingham CI, Fox JA, Bowen WD, den Heyer CE, Coltman DW. Genetic association with boldness and maternal performance in a free-ranging population of grey seals (Halichoerus grypus). Heredity (Edinb) 2021; 127:35-51. [PMID: 33927365 PMCID: PMC8249389 DOI: 10.1038/s41437-021-00439-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 04/11/2021] [Accepted: 04/12/2021] [Indexed: 02/03/2023] Open
Abstract
Individual variation in quantitative traits clearly influence many ecological and evolutionary processes. Moderate to high heritability estimates of personality and life-history traits suggest some level of genetic control over these traits. Yet, we know very little of the underlying genetic architecture of phenotypic variation in the wild. In this study, we used a candidate gene approach to investigate the association of genetic variants with repeated measures of boldness and maternal performance traits (weaning mass and lactation duration) collected over an 11- and 28-year period, respectively, in a free-ranging population of grey seals on Sable Island National Park Reserve, Canada. We isolated and re-sequenced five genes: dopamine receptor D4 (DRD4), serotonin transporter (SERT), oxytocin receptor (OXTR), and melanocortin receptors 1 (MC1R) and 5 (MC5R). We discovered single nucleotide polymorphisms (SNPs) in each gene; and, after accounting for loci in linkage disequilibrium and filtering due to missing data, we were able to test for genotype-phenotype relationships at seven loci in three genes (DRD4, SERT, and MC1R). We tested for association between these loci and traits of 180 females having extreme shy-bold phenotypes using mixed-effects models. One locus within SERT was significantly associated with boldness (effect size = 0.189) and a second locus within DRD4 with weaning mass (effect size = 0.232). Altogether, genotypes explained 6.52-13.66% of total trait variation. Our study substantiates SERT and DRD4 as important determinants of behaviour, and provides unique insight into the molecular mechanisms underlying maternal performance variation in a marine predator.
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Affiliation(s)
- Christine M. Bubac
- grid.17089.37Department of Biological Sciences, University of Alberta, Edmonton, AB Canada
| | - Catherine I. Cullingham
- grid.34428.390000 0004 1936 893XDepartment of Biology, Carleton University, Ottawa, ON Canada
| | - Janay A. Fox
- grid.17089.37Department of Biological Sciences, University of Alberta, Edmonton, AB Canada ,grid.14709.3b0000 0004 1936 8649Redpath Museum and Department of Biology, McGill University, Montreal, QC Canada
| | - W. Don Bowen
- grid.418256.c0000 0001 2173 5688Population Ecology Division, Bedford Institute of Oceanography, Dartmouth, NS Canada ,grid.55602.340000 0004 1936 8200Biology Department, Dalhousie University, Halifax, NS Canada
| | - Cornelia E. den Heyer
- grid.418256.c0000 0001 2173 5688Population Ecology Division, Bedford Institute of Oceanography, Dartmouth, NS Canada
| | - David W. Coltman
- grid.17089.37Department of Biological Sciences, University of Alberta, Edmonton, AB Canada
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6
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Thomson AI, Archer FI, Coleman MA, Gajardo G, Goodall‐Copestake WP, Hoban S, Laikre L, Miller AD, O’Brien D, Pérez‐Espona S, Segelbacher G, Serrão EA, Sjøtun K, Stanley MS. Charting a course for genetic diversity in the UN Decade of Ocean Science. Evol Appl 2021; 14:1497-1518. [PMID: 34178100 PMCID: PMC8210796 DOI: 10.1111/eva.13224] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 03/04/2021] [Accepted: 03/04/2021] [Indexed: 02/06/2023] Open
Abstract
The health of the world's oceans is intrinsically linked to the biodiversity of the ecosystems they sustain. The importance of protecting and maintaining ocean biodiversity has been affirmed through the setting of the UN Sustainable Development Goal 14 to conserve and sustainably use the ocean for society's continuing needs. The decade beginning 2021-2030 has additionally been declared as the UN Decade of Ocean Science for Sustainable Development. This program aims to maximize the benefits of ocean science to the management, conservation, and sustainable development of the marine environment by facilitating communication and cooperation at the science-policy interface. A central principle of the program is the conservation of species and ecosystem components of biodiversity. However, a significant omission from the draft version of the Decade of Ocean Science Implementation Plan is the acknowledgment of the importance of monitoring and maintaining genetic biodiversity within species. In this paper, we emphasize the importance of genetic diversity to adaptive capacity, evolutionary potential, community function, and resilience within populations, as well as highlighting some of the major threats to genetic diversity in the marine environment from direct human impacts and the effects of global climate change. We then highlight the significance of ocean genetic diversity to a diverse range of socioeconomic factors in the marine environment, including marine industries, welfare and leisure pursuits, coastal communities, and wider society. Genetic biodiversity in the ocean, and its monitoring and maintenance, is then discussed with respect to its integral role in the successful realization of the 2030 vision for the Decade of Ocean Science. Finally, we suggest how ocean genetic diversity might be better integrated into biodiversity management practices through the continued interaction between environmental managers and scientists, as well as through key leverage points in industry requirements for Blue Capital financing and social responsibility.
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Affiliation(s)
| | | | - Melinda A. Coleman
- New South Wales FisheriesNational Marine Science CentreCoffs HarbourNSWAustralia
- National Marine Science CentreSouthern Cross UniversityCoffs HarbourNSWAustralia
- Oceans Institute and School of Biological SciencesUniversity of Western AustraliaCrawleyWAAustralia
| | - Gonzalo Gajardo
- Laboratory of Genetics, Aquaculture & BiodiversityUniversidad de Los LagosOsornoChile
| | | | - Sean Hoban
- Centre for Tree ScienceThe Morton ArboretumLisleILUSA
| | - Linda Laikre
- Centre for Tree ScienceThe Morton ArboretumLisleILUSA
- The Wildlife Analysis UnitThe Swedish Environmental Protection AgencyStockholmSweden
| | - Adam D. Miller
- School of Life and Environmental SciencesCentre for Integrative EcologyDeakin UniversityGeelongVicAustralia
- Deakin Genomics CentreDeakin UniversityGeelongVic.Australia
| | | | - Sílvia Pérez‐Espona
- The Royal (Dick) School of Veterinary Studies and The Roslin InstituteMidlothianUK
| | - Gernot Segelbacher
- Chair of Wildlife Ecology and ManagementUniversity FreiburgFreiburgGermany
| | - Ester A. Serrão
- CCMARCentre of Marine SciencesFaculty of Sciences and TechnologyUniversity of AlgarveFaroPortugal
| | - Kjersti Sjøtun
- Department of Biological SciencesUniversity of BergenBergenNorway
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Wood SA, Murray KT, Josephson E, Gilbert J. Rates of increase in gray seal ( Halichoerus grypus atlantica) pupping at recolonized sites in the United States, 1988-2019. J Mammal 2020; 101:121-128. [PMID: 32099265 PMCID: PMC7035213 DOI: 10.1093/jmammal/gyz184] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 10/28/2019] [Indexed: 11/14/2022] Open
Abstract
Gray seals were historically distributed along the northeastern coast of the United States, but bounties and lack of protection reduced numbers and they were rarely observed for most of the 20th century. Once protections were enacted, the population started to rebound. Here, we describe the recolonization and recovery of gray seals in the United States, focusing on the re-establishment of pupping sites. We fit individual generalized linear models to various time series (1988–2019) to estimate rates of increase in observed pup counts at four of the more data-rich sites. Annual rate of increase at individual sites ranged from −0.2% (95% CI: −2.3–1.9%) to 26.3% (95% CI: 21.6–31.4%). The increase in sites and number of pups born in the United States is driven by population growth and immigration from Canadian colonies and is part of a larger recovery of the Northwest Atlantic population. Wildlife protection, a healthy source population, habitat availability, and species traits that allow for dispersal and high productivity were all important factors in this recovery.
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Affiliation(s)
- Stephanie A Wood
- University of Massachusetts, Boston, Biology Department, Boston, MA, USA
| | | | | | - James Gilbert
- University of Maine, Department of Wildlife, Fisheries and Conservation Biology, Orono, ME, USA
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Cammen KM, Schultz TF, Don Bowen W, Hammill MO, Puryear WB, Runstadler J, Wenzel FW, Wood SA, Kinnison M. Genomic signatures of population bottleneck and recovery in Northwest Atlantic pinnipeds. Ecol Evol 2018; 8:6599-6614. [PMID: 30038760 PMCID: PMC6053562 DOI: 10.1002/ece3.4143] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 03/30/2018] [Accepted: 04/04/2018] [Indexed: 12/13/2022] Open
Abstract
Population increases over the past several decades provide natural settings in which to study the evolutionary processes that occur during bottleneck, growth, and spatial expansion. We used parallel natural experiments of historical decline and subsequent recovery in two sympatric pinniped species in the Northwest Atlantic, the gray seal (Halichoerus grypus atlantica) and harbor seal (Phoca vitulina vitulina), to study the impact of recent demographic change in genomic diversity. Using restriction site-associated DNA sequencing, we assessed genomic diversity at over 8,700 polymorphic gray seal loci and 3,700 polymorphic harbor seal loci in samples from multiple cohorts collected throughout recovery over the past half-century. Despite significant differences in the degree of genetic diversity assessed in the two species, we found signatures of historical bottlenecks in the contemporary genomes of both gray and harbor seals. We evaluated temporal trends in diversity across cohorts, as well as compared samples from sites at both the center and edge of a recent gray seal range expansion, but found no significant change in genomewide diversity following recovery. We did, however, find that the variance and degree of allele frequency change measured over the past several decades were significantly different from neutral expectations of drift under population growth. These two cases of well-described demographic history provide opportunities for critical evaluation of current approaches to simulating and understanding the genetic effects of historical demographic change in natural populations.
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Affiliation(s)
| | - Thomas F. Schultz
- Duke University Marine LabNicholas School of the EnvironmentBeaufortNCUSA
| | - W. Don Bowen
- Bedford Institute of OceanographyDartmouthNSCanada
| | - Michael O. Hammill
- Fisheries and Oceans CanadaMaurice Lamontagne InstituteMont‐JoliQCCanada
| | - Wendy B. Puryear
- Department of Infectious Disease and Global HealthCummings School of Veterinary MedicineTufts UniversityNorth GraftonMAUSA
| | - Jonathan Runstadler
- Department of Infectious Disease and Global HealthCummings School of Veterinary MedicineTufts UniversityNorth GraftonMAUSA
| | - Frederick W. Wenzel
- Protected Species Branch, NOAA, NMFSNortheast Fisheries Science CenterWoods HoleMAUSA
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