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Yu Q, Hu J, Hu X, Zhou Y, Wang F, Jiang S, Wang Y. Demographic patterns of two related desert shrubs with overlapping distributions in response to past climate changes. FRONTIERS IN PLANT SCIENCE 2024; 15:1345624. [PMID: 38450397 PMCID: PMC10915042 DOI: 10.3389/fpls.2024.1345624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/05/2024] [Indexed: 03/08/2024]
Abstract
Numerous studies have revealed that past geological events and climatic fluctuations had profoundly affected the genetic structure and demographic patterns of species. However, related species with overlapping ranges may have responded to such environmental changes in different ways. In this study, we compared the genetic structure and population dynamics of two typical desert shrubs with overlapping distributions in northern China, Nitraria tangutorum and Nitraria sphaerocarpa, based on chloroplast DNA (cpDNA) variations and species distribution models. We sequenced two cpDNA fragments (trnH-trnA and atpH-atpI) in 633 individuals sampled from 52 natural populations. Twenty-four chlorotypes, including eight rare chlorotypes, were identified, and a single dominant haplotype (H4) widely occurred in the entire geographical ranges of the two species. There were also a few distinctive chlorotypes fixed in different geographical regions. Population structure analyses suggested that the two species had significantly different levels of total genetic diversity and interpopulation differentiation, which was highly likely correlated with the special habitat preferences of the two species. A clear phylogeographic structure was identified to exist among populations of N. sphaerocarpa, but not exist for N. tangutorum. The neutral tests, together with the distribution of pairwise differences revealed that N. tangutorum experienced a sudden demographic expansion, and its expansion approximately occurred between 21 and 7 Kya before present, while a rapid range expansion was not identified for N. sphaerocarpa. The ecological niche modeling (ENM) analysis indicated that the potential ranges of two species apparently fluctuated during the past and present periods, with obvious contraction in the Last Glacial Maximum (LGM) and recolonization in the present, respectively, comparing to the Last Interglacial (LIG). These findings suggest that the two species extensively occurred in the Northwest of China before the Quaternary, and the current populations of them originated from a few separated glacial refugia following their habitat fragmentation in the Quarternary. Our results provide new insights on the impact of past geological and climatic fluctuations on the population dynamics of desert plants in northwestern China, and further enforce the hypothesis that there were several independent glacial refugia for these species during the Quaternary glaciations.
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Affiliation(s)
- Qiushi Yu
- Xinglongshan Forest Ecosystem National Positioning Observation and Research Station, Gansu Research Academy of Forestry Science and Technology, Lanzhou, China
- State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou, China
- Key Laboratory of Biodiversity Formation Mechanism and Comprehensive Utilization of the Qinghai-Tibet Plateau in Qinghai Province, Qinghai Normal University, Xining, China
| | - Jing Hu
- State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou, China
| | - Xiaoke Hu
- State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou, China
| | - Yongfeng Zhou
- Guangdong Laboratory of Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China
| | - Fanglin Wang
- State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou, China
| | - Shengxiu Jiang
- State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou, China
| | - Yuqi Wang
- State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou, China
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Austin RE, De Pascalis F, Votier SC, Haakonsson J, Arnould JPY, Ebanks-Petrie G, Newton J, Harvey J, Green JA. Interspecific and intraspecific foraging differentiation of neighbouring tropical seabirds. MOVEMENT ECOLOGY 2021; 9:27. [PMID: 34039419 PMCID: PMC8152358 DOI: 10.1186/s40462-021-00251-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Social interactions, reproductive demands and intrinsic constraints all influence foraging decisions in animals. Understanding the relative importance of these factors in shaping the way that coexisting species within communities use and partition resources is central to knowledge of ecological and evolutionary processes. However, in marine environments, our understanding of the mechanisms that lead to and allow coexistence is limited, particularly in the tropics. METHODS Using simultaneous data from a suite of animal-borne data loggers (GPS, depth recorders, immersion and video), dietary samples and stable isotopes, we investigated interspecific and intraspecific differences in foraging of two closely-related seabird species (the red-footed booby and brown booby) from neighbouring colonies on the Cayman Islands in the Caribbean. RESULTS The two species employed notably different foraging strategies, with marked spatial segregation, but limited evidence of interspecific dietary partitioning. The larger-bodied brown booby foraged within neritic waters, with the smaller-bodied red-footed booby travelling further offshore. Almost no sex differences were detected in foraging behaviour of red-footed boobies, while male and female brown boobies differed in their habitat use, foraging characteristics and dietary contributions. We suggest that these behavioural differences may relate to size dimorphism and competition: In the small brown booby population (n < 200 individuals), larger females showed a higher propensity to remain in coastal waters where they experienced kleptoparasitic attacks from magnificent frigatebirds, while smaller males that were never kleptoparasitised travelled further offshore, presumably into habitats with lower kleptoparasitic pressure. In weakly dimorphic red-footed boobies, these differences are less pronounced. Instead, density-dependent pressures on their large population (n > 2000 individuals) and avoidance of kleptoparasitism may be more prevalent in driving movements for both sexes. CONCLUSIONS Our results reveal how, in an environment where opportunities for prey diversification are limited, neighbouring seabird species segregate at-sea, while exhibiting differing degrees of sexual differentiation. While the mechanisms underlying observed patterns remain unclear, our data are consistent with the idea that multiple factors involving both conspecifics and heterospecifics, as well as reproductive pressures, may combine to influence foraging differences in these neighbouring tropical species.
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Affiliation(s)
- R E Austin
- School of Environmental Sciences, University of Liverpool, Liverpool, L69 3GP, UK.
| | - F De Pascalis
- School of Environmental Sciences, University of Liverpool, Liverpool, L69 3GP, UK
- Present Address: Department of Environmental Science and Policy, University of Milan, Milan, Italy
| | - S C Votier
- The Lyell Centre, Heriot-Watt University, Edinburgh, EH14 4AP, UK
| | - J Haakonsson
- Department of Environment, Cayman Islands Government, George Town, Grand Cayman, KY1-1002, Cayman Islands
| | - J P Y Arnould
- School of Life and Environmental Sciences, Deakin University, Burwood, VIC, 3125, Australia
| | - G Ebanks-Petrie
- Department of Environment, Cayman Islands Government, George Town, Grand Cayman, KY1-1002, Cayman Islands
| | - J Newton
- NERC National Environmental Isotope Facility, Scottish Universities Environmental Research Centre, Scottish Enterprise Technology Park, East Kilbride, G75 0QF, UK
| | - J Harvey
- Department of Environment, Cayman Islands Government, George Town, Grand Cayman, KY1-1002, Cayman Islands
- Present Address: Guy Harvey Ocean Foundation, George Town, Grand Cayman, KY1-1005, Cayman Islands
| | - J A Green
- School of Environmental Sciences, University of Liverpool, Liverpool, L69 3GP, UK
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Extreme philopatry and genetic diversification at unprecedented scales in a seabird. Sci Rep 2021; 11:6834. [PMID: 33767313 PMCID: PMC7994906 DOI: 10.1038/s41598-021-86406-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 03/12/2021] [Indexed: 01/31/2023] Open
Abstract
Effective conservation requires maintenance of the processes underlying species divergence, as well as understanding species' responses to episodic disturbances and long-term change. We explored genetic population structure at a previously unrecognized spatial scale in seabirds, focusing on fine-scale isolation between colonies, and identified two distinct genetic clusters of Barau's Petrels (Pterodroma baraui) on Réunion Island (Indian Ocean) corresponding to the sampled breeding colonies separated by 5 km. This unexpected result was supported by long-term banding and was clearly linked to the species' extreme philopatric tendencies, emphasizing the importance of philopatry as an intrinsic barrier to gene flow. This implies that loss of a single colony could result in the loss of genetic variation, impairing the species' ability to adapt to threats in the long term. We anticipate that these findings will have a pivotal influence on seabird research and population management, focusing attention below the species level of taxonomic organization.
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Hipfner JM, Prill MM, Studholme KR, Domalik AD, Tucker S, Jardine C, Maftei M, Wright KG, Beck JN, Bradley RW, Carle RD, Good TP, Hatch SA, Hodum PJ, Ito M, Pearson SF, Rojek NA, Slater L, Watanuki Y, Will AP, Bindoff AD, Crossin GT, Drever MC, Burg TM. Geolocator tagging links distributions in the non-breeding season to population genetic structure in a sentinel North Pacific seabird. PLoS One 2020; 15:e0240056. [PMID: 33166314 PMCID: PMC7652296 DOI: 10.1371/journal.pone.0240056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 09/17/2020] [Indexed: 12/15/2022] Open
Abstract
We tested the hypothesis that segregation in wintering areas is associated with population differentiation in a sentinel North Pacific seabird, the rhinoceros auklet (Cerorhinca monocerata). We collected tissue samples for genetic analyses on five breeding colonies in the western Pacific Ocean (Japan) and on 13 colonies in the eastern Pacific Ocean (California to Alaska), and deployed light-level geolocator tags on 12 eastern Pacific colonies to delineate wintering areas. Geolocator tags were deployed previously on one colony in Japan. There was strong genetic differentiation between populations in the eastern vs. western Pacific Ocean, likely due to two factors. First, glaciation over the North Pacific in the late Pleistocene might have forced a southward range shift that historically isolated the eastern and western populations. And second, deep-ocean habitat along the northern continental shelf appears to act as a barrier to movement; abundant on both sides of the North Pacific, the rhinoceros auklet is virtually absent as a breeder in the Aleutian Islands and Bering Sea, and no tagged birds crossed the North Pacific in the non-breeding season. While genetic differentiation was strongest between the eastern vs. western Pacific, there was also extensive differentiation within both regional groups. In pairwise comparisons among the eastern Pacific colonies, the standardized measure of genetic differentiation (FꞌST) was negatively correlated with the extent of spatial overlap in wintering areas. That result supports the hypothesis that segregation in the non-breeding season is linked to genetic structure. Philopatry and a neritic foraging habit probably also contribute to the structuring. Widely distributed, vulnerable to anthropogenic stressors, and exhibiting extensive genetic structure, the rhinoceros auklet is fully indicative of the scope of the conservation challenges posed by seabirds.
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Affiliation(s)
- J. Mark Hipfner
- Wildlife Research Division, Environment and Climate Change Canada, Delta, British Columbia, Canada
- * E-mail:
| | - Marie M. Prill
- Department of Biology, University of Lethbridge, Lethbridge, Alberta, Canada
| | | | - Alice D. Domalik
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Strahan Tucker
- Fisheries and Oceans Canada, Nanaimo, British Columbia, Canada
| | | | - Mark Maftei
- Wildlife Research Division, Environment and Climate Change Canada, Delta, British Columbia, Canada
| | - Kenneth G. Wright
- Wildlife Research Division, Environment and Climate Change Canada, Delta, British Columbia, Canada
| | - Jessie N. Beck
- Oikonos Ecosystems Knowledge, Santa Cruz, California, United States of America
| | - Russell W. Bradley
- Point Blue Conservation Science, Petaluma, California, United States of America
| | - Ryan D. Carle
- Oikonos Ecosystems Knowledge, Santa Cruz, California, United States of America
| | - Thomas P. Good
- Northwest Fisheries Science Centre, National Marine Fisheries Service, National Oceanographic and Atmospheric Administration, Seattle, Washington, United States of America
| | - Scott A. Hatch
- Institute for Seabird Research and Conservation, Anchorage, Alaska, United States of America
| | - Peter J. Hodum
- Department of Biology, University of Puget Sound, Tacoma, Washington, United States of America
| | - Motohiro Ito
- Department of Applied Biosciences, Toyo University, Bunkyō-ku, Japan
| | - Scott F. Pearson
- Washington Department of Fish and Wildlife, Olympia, Washington, United States of America
| | - Nora A. Rojek
- United States Fish and Wildlife Service, Homer, Alaska, United States of America
| | - Leslie Slater
- United States Fish and Wildlife Service, Homer, Alaska, United States of America
| | - Yutaka Watanuki
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
| | - Alexis P. Will
- Institute of Arctic Biology, University of Alaska Fairbanks, Fairbanks, Alaska, United States of America
| | - Aidan D. Bindoff
- Wicking Dementia Research and Education Centre, University of Tasmania, Hobart, Tasmania, Australia
| | - Glenn T. Crossin
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Mark C. Drever
- Wildlife Research Division, Environment and Climate Change Canada, Delta, British Columbia, Canada
| | - Theresa M. Burg
- Department of Biology, University of Lethbridge, Lethbridge, Alberta, Canada
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Lombal AJ, O'dwyer JE, Friesen V, Woehler EJ, Burridge CP. Identifying mechanisms of genetic differentiation among populations in vagile species: historical factors dominate genetic differentiation in seabirds. Biol Rev Camb Philos Soc 2020; 95:625-651. [PMID: 32022401 DOI: 10.1111/brv.12580] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 12/23/2019] [Accepted: 01/08/2020] [Indexed: 01/01/2023]
Abstract
Elucidating the factors underlying the origin and maintenance of genetic variation among populations is crucial for our understanding of their ecology and evolution, and also to help identify conservation priorities. While intrinsic movement has been hypothesized as the major determinant of population genetic structuring in abundant vagile species, growing evidence indicates that vagility does not always predict genetic differentiation. However, identifying the determinants of genetic structuring can be challenging, and these are largely unknown for most vagile species. Although, in principle, levels of gene flow can be inferred from neutral allele frequency divergence among populations, underlying assumptions may be unrealistic. Moreover, molecular studies have suggested that contemporary gene flow has often not overridden historical influences on population genetic structure, which indicates potential inadequacies of any interpretations that fail to consider the influence of history in shaping that structure. This exhaustive review of the theoretical and empirical literature investigates the determinants of population genetic differentiation using seabirds as a model system for vagile taxa. Seabirds provide a tractable group within which to identify the determinants of genetic differentiation, given their widespread distribution in marine habitats and an abundance of ecological and genetic studies conducted on this group. Herein we evaluate mitochondrial DNA (mtDNA) variation in 73 seabird species. Lack of mutation-drift equilibrium observed in 19% of species coincided with lower estimates of genetic differentiation, suggesting that dynamic demographic histories can often lead to erroneous interpretations of contemporary gene flow, even in vagile species. Presence of land across the species sampling range, or sampling of breeding colonies representing ice-free Pleistocene refuge zones, appear to be associated with genetic differentiation in Tropical and Southern Temperate species, respectively, indicating that long-term barriers and persistence of populations are important for their genetic structuring. Conversely, biotic factors commonly considered to influence population genetic structure, such as spatial segregation during foraging, were inconsistently associated with population genetic differentiation. In light of these results, we recommend that genetic studies should consider potential historical events when identifying determinants of genetic differentiation among populations to avoid overestimating the role of contemporary factors, even for highly vagile taxa.
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Affiliation(s)
- Anicee J Lombal
- Discipline of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, TAS, 7001, Australia
| | - James E O'dwyer
- Discipline of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, TAS, 7001, Australia
| | - Vicki Friesen
- Department of Biology, Queen's University, 99 University Avenue, Kingston, OL, K7L 3N6, Canada
| | - Eric J Woehler
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Hobart, TAS, 7004, Australia
| | - Christopher P Burridge
- Discipline of Biological Sciences, University of Tasmania, Private Bag 55, Hobart, TAS, 7001, Australia
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Population genetic structure of the land snail Camaena cicatricosa (Stylommatophora, Camaenidae) in China inferred from mitochondrial genes and ITS2 sequences. Sci Rep 2017; 7:15590. [PMID: 29142227 PMCID: PMC5688059 DOI: 10.1038/s41598-017-15758-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 11/01/2017] [Indexed: 02/01/2023] Open
Abstract
The phylogeographic structure of the land snail Camaena cicatricosa was analyzed in this study based on mitochondrial gene (COI and 16srRNA, mt DNA) and internal transcribed spacer (ITS2) sequences in 347 individuals. This snail is the vector of the zoonotic food-borne parasite Angiostrongylus cantonensis and one of the main harmful snails distributed exclusively in China. The results revealed significant fixation indices of genetic differentiation and high gene flow between most populations except several populations. An isolation-by-distance test showed no significant correlation between genetic distance and geographical distance among C. cicatricosa populations, which suggested that gene flow was not restricted by distance. The levels of haplotype and nucleotide diversity of C. cicatricosa were generally high, except those in some special populations, according to the mt DNA and ITS2 data. Furthermore, the phylogenetic trees and asteroid networks of haplotypes indicated nonobvious genetic structure, the same as results got based on the synonymous and non synonymous sites of 347 sequences of the COI gene. All lines of evidence indicated that climatic changes and geographical and human barriers do not substantially affect the current population structure and distribution of the investigated snails.
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Booth Jones KA, Nicoll MAC, Raisin C, Dawson DA, Hipperson H, Horsburgh GJ, Groombridge JJ, Ismar SMH, Sweet P, Jones CG, Tatayah V, Ruhomaun K, Norris K. Widespread gene flow between oceans in a pelagic seabird species complex. Mol Ecol 2017; 26:5716-5728. [PMID: 28833786 DOI: 10.1111/mec.14330] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 08/02/2017] [Accepted: 08/07/2017] [Indexed: 12/15/2022]
Abstract
Global-scale gene flow is an important concern in conservation biology as it has the potential to either increase or decrease genetic diversity in species and populations. Although many studies focus on the gene flow between different populations of a single species, the potential for gene flow and introgression between species is understudied, particularly in seabirds. The only well-studied example of a mixed-species, hybridizing population of petrels exists on Round Island, in the Indian Ocean. Previous research assumed that Round Island represents a point of secondary contact between Atlantic (Pterodroma arminjoniana) and Pacific species (Pterodroma neglecta and Pterodroma heraldica). This study uses microsatellite genotyping and tracking data to address the possibility of between-species hybridization occurring outside the Indian Ocean. Dispersal and gene flow spanning three oceans were demonstrated between the species in this complex. Analysis of migration rates estimated using bayesass revealed unidirectional movement of petrels from the Atlantic and Pacific into the Indian Ocean. Conversely, structure analysis revealed gene flow between species of the Atlantic and Pacific oceans, with potential three-way hybrids occurring outside the Indian Ocean. Additionally, geolocation tracking of Round Island petrels revealed two individuals travelling to the Atlantic and Pacific. These results suggest that interspecific hybrids in Pterodroma petrels are more common than was previously assumed. This study is the first of its kind to investigate gene flow between populations of closely related Procellariiform species on a global scale, demonstrating the need for consideration of widespread migration and hybridization in the conservation of threatened seabirds.
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Affiliation(s)
- Katherine A Booth Jones
- Institute of Zoology, Zoological Society London, London, UK.,Department of Animal and Plant Sciences, NERC Biomolecular Analysis Facility, University of Sheffield, Sheffield, UK
| | | | - Claire Raisin
- Department of Animal and Plant Sciences, NERC Biomolecular Analysis Facility, University of Sheffield, Sheffield, UK.,Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, University of Kent, Canterbury, Kent, UK
| | - Deborah A Dawson
- Department of Animal and Plant Sciences, NERC Biomolecular Analysis Facility, University of Sheffield, Sheffield, UK
| | - Helen Hipperson
- Department of Animal and Plant Sciences, NERC Biomolecular Analysis Facility, University of Sheffield, Sheffield, UK
| | - Gavin J Horsburgh
- Department of Animal and Plant Sciences, NERC Biomolecular Analysis Facility, University of Sheffield, Sheffield, UK
| | - Jim J Groombridge
- Durrell Institute of Conservation and Ecology, School of Anthropology and Conservation, University of Kent, Canterbury, Kent, UK
| | - Stefanie M H Ismar
- School of Biological Sciences, University of Auckland, Auckland, New Zealand
| | - Paul Sweet
- Division of Vertebrate Zoology - Ornithology, American Museum of Natural History, New York, NY, USA
| | - Carl G Jones
- Mauritian Wildlife Foundation, Vacoas, Mauritius.,Durrell Wildlife Conservation Trust, Channel Islands, UK
| | | | - Kevin Ruhomaun
- National Parks and Conservation Service (Government of Mauritius), Reduit, Mauritius
| | - Ken Norris
- Institute of Zoology, Zoological Society London, London, UK
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Thanou E, Sponza S, Nelson EJ, Perry A, Wanless S, Daunt F, Cavers S. Genetic structure in the European endemic seabird, Phalacrocorax aristotelis, shaped by a complex interaction of historical and contemporary, physical and nonphysical drivers. Mol Ecol 2016; 26:2796-2811. [PMID: 28028864 DOI: 10.1111/mec.13996] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 12/21/2016] [Accepted: 12/21/2016] [Indexed: 11/30/2022]
Abstract
Geographically separated populations tend to be less connected by gene flow, as a result of physical or nonphysical barriers preventing dispersal, and this can lead to genetic structure. In this context, highly mobile organisms such as seabirds are interesting because the small effect of physical barriers means nonphysical ones may be relatively more important. Here, we use microsatellite and mitochondrial data to explore the genetic structure and phylogeography of Atlantic and Mediterranean populations of a European endemic seabird, the European shag, Phalacrocorax aristotelis, and identify the primary drivers of their diversification. Analyses of mitochondrial markers revealed three phylogenetic lineages grouping the North Atlantic, Spanish/Corsican and eastern Mediterranean populations, apparently arising from fragmentation during the Pleistocene followed by range expansion. These traces of historical fragmentation were also evident in the genetic structure estimated by microsatellite markers, despite significant contemporary gene flow among adjacent populations. Stronger genetic structure, probably promoted by landscape, philopatry and local adaptation, was found among distant populations and those separated by physical and ecological barriers. This study highlights the enduring effect of Pleistocene climatic changes on shag populations, especially within the Mediterranean Basin, and suggests a role for cryptic northern refugia, as well as known southern refugia, on the genetic structure of European seabirds. Finally, it outlines how contemporary ecological barriers and behavioural traits may maintain population divergence, despite long-distance dispersal triggered by extreme environmental conditions (e.g. population crashes).
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Affiliation(s)
- Evanthia Thanou
- Section of Animal Biology, Department of Biology, University of Patras, Patras, GR-26504, Greece.,Centre for Ecology & Hydrology, Penicuik, EH26 0QB, UK
| | - Stefano Sponza
- Department of Mathematics and Geosciences, University of Trieste, I-34127, Trieste, Italy
| | - Emily J Nelson
- Centre for Ecology & Hydrology, Penicuik, EH26 0QB, UK.,Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, AB24 2TZ, UK
| | - Annika Perry
- Centre for Ecology & Hydrology, Penicuik, EH26 0QB, UK
| | - Sarah Wanless
- Centre for Ecology & Hydrology, Penicuik, EH26 0QB, UK
| | - Francis Daunt
- Centre for Ecology & Hydrology, Penicuik, EH26 0QB, UK
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Mechanisms of global diversification in the marine species Madeiran Storm-petrel Oceanodroma castro and Monteiro’s Storm-petrel O. monteiroi: Insights from a multi-locus approach. Mol Phylogenet Evol 2016; 98:314-23. [DOI: 10.1016/j.ympev.2016.02.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 02/07/2016] [Accepted: 02/18/2016] [Indexed: 01/19/2023]
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10
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McCoy KD, Dietrich M, Jaeger A, Wilkinson DA, Bastien M, Lagadec E, Boulinier T, Pascalis H, Tortosa P, Le Corre M, Dellagi K, Lebarbenchon C. The role of seabirds of the Iles Eparses as reservoirs and disseminators of parasites and pathogens. ACTA OECOLOGICA (MONTROUGE, FRANCE) 2016; 72:98-109. [PMID: 32288503 PMCID: PMC7128210 DOI: 10.1016/j.actao.2015.12.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 12/30/2015] [Accepted: 12/30/2015] [Indexed: 11/30/2022]
Abstract
The role of birds as reservoirs and disseminators of parasites and pathogens has received much attention over the past several years due to their high vagility. Seabirds are particularly interesting hosts in this respect. In addition to incredible long-distance movements during migration, foraging and prospecting, these birds are long-lived, site faithful and breed in dense aggregations in specific colony locations. These different characteristics can favor both the local maintenance and large-scale dissemination of parasites and pathogens. The Iles Eparses provide breeding and feeding grounds for more than 3 million breeding pairs of seabirds including at least 13 species. Breeding colonies on these islands are relatively undisturbed by human activities and represent natural metapopulations in which seabird population dynamics, movement and dispersal can be studied in relation to that of circulating parasites and pathogens. In this review, we summarize previous knowledge and recently-acquired data on the parasites and pathogens found in association with seabirds of the Iles Eparses. These studies have revealed the presence of a rich diversity of infectious agents (viruses, bacteria and parasites) carried by the birds and/or their local ectoparasites (ticks and louse flies). Many of these agents are widespread and found in other ecosystems confirming a role for seabirds in their large scale dissemination and maintenance. The heterogeneous distribution of parasites and infectious agents among islands and seabird species suggests that relatively independent metacommunities of interacting species may exist within the western Indian Ocean. In this context, we discuss how the patterns and determinants of seabird movements may alter parasite and pathogen circulation. We conclude by outlining key aspects for future research given the baseline data now available and current concerns in eco-epidemiology and biodiversity conservation.
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Affiliation(s)
- Karen D. McCoy
- MIVEGEC (Maladies Infectieuses et Vecteurs: Evolution, Génétique, Ecologie, Contrôle) UMR 5290 CNRS-IRD-Université de Montpellier, Centre IRD, 34393 Montpellier, France
| | - Muriel Dietrich
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
| | - Audrey Jaeger
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
- UMR ENTROPIE, Université de la Réunion-IRD-CNRS, CS92003, 97744 Saint Denis, Reunion Island, France
| | - David A. Wilkinson
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
- UMR PIMIT (Processus Infectieux en Milieu Insulaire Tropical), Université de La Réunion, INSERM 1187, CNRS 9192, IRD 249, 97490 Sainte Clotilde, Reunion Island, France
| | - Matthieu Bastien
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
- UMR PIMIT (Processus Infectieux en Milieu Insulaire Tropical), Université de La Réunion, INSERM 1187, CNRS 9192, IRD 249, 97490 Sainte Clotilde, Reunion Island, France
| | - Erwan Lagadec
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
- UMR PIMIT (Processus Infectieux en Milieu Insulaire Tropical), Université de La Réunion, INSERM 1187, CNRS 9192, IRD 249, 97490 Sainte Clotilde, Reunion Island, France
| | - Thierry Boulinier
- Centre d'Ecologie Fonctionnelle et Evolutive, CNRS-Université de Montpellier UMR 5175, 34293 Montpellier, France
| | - Hervé Pascalis
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
- UMR PIMIT (Processus Infectieux en Milieu Insulaire Tropical), Université de La Réunion, INSERM 1187, CNRS 9192, IRD 249, 97490 Sainte Clotilde, Reunion Island, France
| | - Pablo Tortosa
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
- UMR PIMIT (Processus Infectieux en Milieu Insulaire Tropical), Université de La Réunion, INSERM 1187, CNRS 9192, IRD 249, 97490 Sainte Clotilde, Reunion Island, France
| | - Matthieu Le Corre
- UMR ENTROPIE, Université de la Réunion-IRD-CNRS, CS92003, 97744 Saint Denis, Reunion Island, France
| | - Koussay Dellagi
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
- UMR PIMIT (Processus Infectieux en Milieu Insulaire Tropical), Université de La Réunion, INSERM 1187, CNRS 9192, IRD 249, 97490 Sainte Clotilde, Reunion Island, France
| | - Camille Lebarbenchon
- CRVOI (Centre de Recherche et de Veille sur les maladies émergentes dans l'Océan Indien), 97490 Sainte Clotilde, Reunion Island, France
- UMR PIMIT (Processus Infectieux en Milieu Insulaire Tropical), Université de La Réunion, INSERM 1187, CNRS 9192, IRD 249, 97490 Sainte Clotilde, Reunion Island, France
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11
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López-Rull I, Lifshitz N, Macías Garcia C, Graves JA, Torres R. Females of a polymorphic seabird dislike foreign-looking males. Anim Behav 2016. [DOI: 10.1016/j.anbehav.2015.12.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Zhang L, Li H, Li S, Zhang A, Kou F, Xun H, Wang P, Wang Y, Song F, Cui J, Cui J, Gouge DH, Cai W. Phylogeographic structure of cotton pest Adelphocoris suturalis (Hemiptera: Miridae): strong subdivision in China inferred from mtDNA and rDNA ITS markers. Sci Rep 2015; 5:14009. [PMID: 26388034 PMCID: PMC4585665 DOI: 10.1038/srep14009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 08/13/2015] [Indexed: 11/09/2022] Open
Abstract
Phylogeographic patterns of some extant plant and vertebrate species have been well studied; however, they are poorly understood in the majority of insects. The study documents analysis of mitochondrial (COI, CYTB and ND5) and nuclear (5.8S rDNA, ITS2 and 28S rDNA) data from 419 individuals of Adelphocoris suturalis, which is one of the main cotton pests found in the 31 locations in China and Japan involved in the study. Results show that the species is highly differentiated between populations from central China and peripheral China regions. Analysis of molecular variance showed a high level of geographical differentiation at different hierarchical levels. Isolation-by-distance test showed no significant correlation between genetic distance and geographical distance among A. suturalis populations, which suggested gene flow is not restricted by distance. In seven peripheral populations, the high levels of genetic differentiation and the small Nem values implied that geographic barriers were more likely restrict gene flow. Neutrality tests and the Bayesian skyline plot suggested population expansion likely happened during the cooling transition between Last Interglacial and Last Glacial Maximum. All lines of evidence suggest that physical barriers, Pleistocene climatic oscillations and geographical heterogeneity have affected the population structure and distribution of this insect in China.
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Affiliation(s)
- Lijuan Zhang
- Department of Entomology, China Agricultural University, Beijing 100193, China.,Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, China
| | - Hu Li
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Shujuan Li
- Maricopa Agricultural Center, University of Arizona, Maricopa, AZ 85138, USA
| | - Aibing Zhang
- College of Life Sciences, Capital Normal University, Beijing 100048, China
| | - Fei Kou
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Huaizhu Xun
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Pei Wang
- Key Laboratory of Molluscan Quarantine and Identification of AQSIQ, Fujian Entry-Exit Inspection &Quarantine Bureau, Fuzhou, Fujian 350001, China
| | - Ying Wang
- Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Fan Song
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Jianxin Cui
- Henan Institute of Science and Technology, Xinxiang, Henan 453003, China
| | - Jinjie Cui
- Cotton Research Institute, Chinese Academy of Agricultural Sciences, Anyang, Henan 455000, China
| | - Dawn H Gouge
- Department of Entomology, University of Arizona, Maricopa, AZ 85721, USA
| | - Wanzhi Cai
- Department of Entomology, China Agricultural University, Beijing 100193, China
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13
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Álvarez-Varas R, González-Acuña D, Vianna JA. Comparative phylogeography of co-distributed Phrygilus species (Aves, Thraupidae) from the Central Andes. Mol Phylogenet Evol 2015; 90:150-63. [PMID: 25987531 DOI: 10.1016/j.ympev.2015.04.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 04/10/2015] [Accepted: 04/13/2015] [Indexed: 02/01/2023]
Abstract
The Neotropical ecoregion has been an important place of avian diversification where dispersal and allopatric events coupled with periods of active orogeny and climate change (Late Pliocene-Pleistocene) have shaped the biogeography of the region. In the Neotropics, avian population structure has been sculpted not only by geographical barriers, but also by non-allopatric factors such as natural selection and local adaptation. We analyzed the genetic variation of six co-distributed Phrygilus species from the Central Andes, based on mitochondrial and nuclear markers in conjunction with morphological differentiation. We examined if Phrygilus species share patterns of population structure and historical demography, and reviewed the intraspecific taxonomy in part of their geographic range. Our results showed different phylogeographic patterns between species, even among those belonging to the same phylogenetic clade. P. alaudinus, P. atriceps, and P. unicolor showed genetic differentiation mediated by allopatric mechanisms in response to specific geographic barriers; P. gayi showed sympatric lineages in northern Chile, while P. plebejus and P. fruticeti showed a single genetic group. We found no relationship between geographic range size and genetic structure. Additionally, a signature of expansion was found in three species related to the expansion of paleolakes in the Altiplano region and the drying phase of the Atacama Desert. Morphological analysis showed congruence with molecular data and intraspecific taxonomy in most species. While we detected genetic and phenotypic patterns that could be related to natural selection and local adaptation, our results indicate that allopatric events acted as a major factor in the population differentiation of Phrygilus species.
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Affiliation(s)
- R Álvarez-Varas
- Departamento de Ecosistemas y Medio Ambiente, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Código Postal: 6904411, Casilla 306, Correo 22, Santiago, Chile.
| | - D González-Acuña
- Facultad de Ciencias Veterinarias, Universidad de Concepción, Casilla 537, Chillán, Chile.
| | - J A Vianna
- Departamento de Ecosistemas y Medio Ambiente, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Código Postal: 6904411, Casilla 306, Correo 22, Santiago, Chile.
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14
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Calderón L, Quintana F, Cabanne GS, Lougheed SC, Tubaro PL. Phylogeography and genetic structure of two Patagonian shag species (Aves: Phalacrocoracidae). Mol Phylogenet Evol 2014; 72:42-53. [PMID: 24418531 DOI: 10.1016/j.ympev.2013.12.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 12/24/2013] [Accepted: 12/31/2013] [Indexed: 11/26/2022]
Abstract
We compared the phylogeographic and genetic structure of two sympatric shag species, Phalacrocorax magellanicus (rock shag) and Phalacrocorax atriceps (imperial shag), from Patagonia (southern South America). We used multilocus genotypes of nuclear DNA (microsatellite loci) from 324 individuals and mitochondrial DNA sequences (ATPase) from 177 individuals, to evaluate hypotheses related to the effect of physical and non-physical barriers on seabird evolution. Despite sharing many ecological traits, the focal species strongly differ in two key aspects: P. magellanicus has a strong tendency to remain at/near their breeding colonies during foraging trips and the non-breeding season, while P. atriceps exhibits the converse pattern. Both species showed similar mtDNA genetic structure, where colonies from the Atlantic Coast, Pacific Coast and Fuegian region were genetically divergent. We also found similarities in the results of Bayesian clustering analysis of microsatellites, with both species having four clusters. However population differentiation (e.g. Fst, Φst) was higher in P. magellanicus compared to P. atriceps, and average membership probabilities of individuals to specific clusters (Q-values) were also higher in the former. Phalacrocorax magellanicus has strong phylogeographic structure, consistent with the impact of Pleistocene glaciations, with diagnostic haplotypes associated with each of the three mentioned regions. The same pattern was not as evident for P. atriceps. Migration rate estimators were higher for P. atriceps than for P. magellanicus; however both species followed an n-island-like model of gene flow, this implies that dispersal occurs across the continental land mass that separates Atlantic and Pacific Oceans. Our results supported the hypothesis that non-physical barriers are important drivers of the genetic and phylogeographic structure in seabirds, and also that physical barriers constitute effective but not absolute impediments to gene flow.
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Affiliation(s)
- Luciano Calderón
- Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", CONICET, Av. Angel Gallardo 470, C1405DJR Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina.
| | - Flavio Quintana
- Biología y Manejo de Recursos Acuáticos, Centro Nacional Patagónico, CONICET, Blvd. Brown 2915, U9120ACD Puerto Madryn, Chubut, Argentina; Wildlife Conservation Society, Amenabar 1595, C1426AKC Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Gustavo S Cabanne
- Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", CONICET, Av. Angel Gallardo 470, C1405DJR Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Stephen C Lougheed
- Queen's University, Department of Biology, Kingston, Ontario K7L3N6, Canada
| | - Pablo L Tubaro
- Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", CONICET, Av. Angel Gallardo 470, C1405DJR Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
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Levin II, Parker PG. Philopatry drives genetic differentiation in an island archipelago: comparative population genetics of Galapagos Nazca boobies (Sula granti) and great frigatebirds (Fregata minor). Ecol Evol 2012; 2:2775-87. [PMID: 23170212 PMCID: PMC3501629 DOI: 10.1002/ece3.386] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Revised: 08/21/2012] [Accepted: 08/27/2012] [Indexed: 11/09/2022] Open
Abstract
Seabirds are considered highly mobile, able to fly great distances with few apparent barriers to dispersal. However, it is often the case that seabird populations exhibit strong population genetic structure despite their potential vagility. Here we show that Galapagos Nazca booby (Sula granti) populations are substantially differentiated, even within the small geographic scale of this archipelago. On the other hand, Galapagos great frigatebird (Fregata minor) populations do not show any genetic structure. We characterized the genetic differentiation by sampling five colonies of both species in the Galapagos archipelago and analyzing eight microsatellite loci and three mitochondrial genes. Using an F-statistic approach on the multilocus data, we found significant differentiation between nearly all island pairs of Nazca booby populations and a Bayesian clustering analysis provided support for three distinct genetic clusters. Mitochondrial DNA showed less differentiation of Nazca booby colonies; only Nazca boobies from the island of Darwin were significantly differentiated from individuals throughout the rest of the archipelago. Great frigatebird populations showed little to no evidence for genetic differentiation at the same scale. Only two island pairs (Darwin - Wolf, N. Seymour - Wolf) were significantly differentiated using the multilocus data, and only two island pairs had statistically significant φ(ST) values (N. Seymour - Darwin, N. Seymour - Wolf) according to the mitochondrial data. There was no significant pattern of isolation by distance for either species calculated using both markers. Seven of the ten Nazca booby migration rates calculated between island pairs were in the south or southeast to north or northwest direction. The population differentiation found among Galapagos Nazca booby colonies, but not great frigatebird colonies, is most likely due to differences in natal and breeding philopatry.
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Affiliation(s)
- Iris I Levin
- Department of Biology, University of Missouri - St. Louis, One University Blvd. St. Louis, Missouri, 63121 ; Whitney R. Harris World Ecology Center, University of Missouri - St. Louis, One University Blvd. St. Louis, Missouri, 63121
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16
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Zhang R, Song G, Qu Y, Alström P, Ramos R, Xing X, Ericson PG, Fjeldså J, Wang H, Yang X, Kristin A, Shestopalov AM, Choe JC, Lei F. Comparative phylogeography of two widespread magpies: Importance of habitat preference and breeding behavior on genetic structure in China. Mol Phylogenet Evol 2012; 65:562-72. [DOI: 10.1016/j.ympev.2012.07.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2012] [Revised: 07/11/2012] [Accepted: 07/14/2012] [Indexed: 01/11/2023]
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17
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Effects of long-term isolation on genetic variation and within-island population genetic structure in Christmas Island (Indian Ocean) seabirds. CONSERV GENET 2012. [DOI: 10.1007/s10592-012-0390-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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18
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Gómez-Díaz E, Morris-Pocock JA, González-Solís J, McCoy KD. Trans-oceanic host dispersal explains high seabird tick diversity on Cape Verde islands. Biol Lett 2012; 8:616-9. [PMID: 22513280 DOI: 10.1098/rsbl.2012.0179] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Parasites represent ideal models for unravelling biogeographic patterns and mechanisms of diversification on islands. Both host-mediated dispersal and within-island adaptation can shape parasite island assemblages. In this study, we examined patterns of genetic diversity and structure of Ornithodoros seabird ticks within the Cape Verde Archipelago in relation to their global phylogeography. Contrary to expectations, ticks from multiple, geographically distant clades mixed within the archipelago. Trans-oceanic colonization via host movements probably explains high local tick diversity, contrasting with previous research that suggests little large-scale dispersal in these birds. Although host specificity was not obvious at a global scale, host-associated genetic structure was found within Cape Verde colonies, indicating that post-colonization adaptation to specific hosts probably occurs. These results highlight the role of host metapopulation dynamics in the evolutionary ecology and epidemiology of avian parasites and pathogens.
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Affiliation(s)
- E Gómez-Díaz
- Institut de Biologia Evolutiva (IBE, CSIC-UPF), Barcelona 08003, Spain.
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19
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Zúñiga-Vega JJ, Suárez-Rodríguez M, Espinosa-Pérez H, Johnson JB. Morphological and reproductive variation among populations of the Pacific molly Poecilia butleri. JOURNAL OF FISH BIOLOGY 2011; 79:1029-1046. [PMID: 21967588 DOI: 10.1111/j.1095-8649.2011.03081.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In viviparous organisms, pregnant females typically experience an increase in body mass and body volume. In this study, the prediction that variation in reproductive traits among populations of viviparous organisms should be related to variation among populations in body shape was tested in the Pacific molly Poecilia butleri, a viviparous fish that inhabits western Mexico and northern Central America. Variation among 10 populations in four reproductive traits was examined: brood size, individual embryo mass, total reproductive allotment and degree of maternal provisioning of nutrients to developing embryos. Variation among these populations in body shape was also examined. Significant variation among populations was observed in both brood size and reproductive allotment but not in embryo mass or degree of maternal provisioning. Significant variation among populations was also observed in body shape. After correcting for female size, however, reproductive traits and body shape were not associated among populations. This suggests that selective pressures acting on reproduction do not necessarily affect morphology and vice versa. Several factors might contribute to this unexpected lack of association between reproductive traits and morphology.
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Affiliation(s)
- J J Zúñiga-Vega
- Departamento de Ecología y Recursos Naturales, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria 04510, Distrito Federal, México.
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Contemporary and historical separation of transequatorial migration between genetically distinct seabird populations. Nat Commun 2011; 2:332. [PMID: 21629265 DOI: 10.1038/ncomms1330] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 05/03/2011] [Indexed: 11/09/2022] Open
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Morris-Pocock JA, Anderson DJ, Friesen VL. Mechanisms of global diversification in the brown booby (Sula leucogaster) revealed by uniting statistical phylogeographic and multilocus phylogenetic methods. Mol Ecol 2011; 20:2835-50. [PMID: 21615811 DOI: 10.1111/j.1365-294x.2011.05132.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- J A Morris-Pocock
- Department of Biology, Queen's University, Kingston, Ontario, Canada.
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22
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Patterson S, Morris-Pocock J, Friesen V. A multilocus phylogeny of the Sulidae (Aves: Pelecaniformes). Mol Phylogenet Evol 2011; 58:181-91. [DOI: 10.1016/j.ympev.2010.11.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2010] [Revised: 11/18/2010] [Accepted: 11/23/2010] [Indexed: 12/19/2022]
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Khan HA, Arif IA, Shobrak M. DNA Barcodes of Arabian Partridge and Philby's Rock Partridge: Implications for Phylogeny and Species Identification. Evol Bioinform Online 2010; 6:151-8. [PMID: 21151586 PMCID: PMC2999960 DOI: 10.4137/ebo.s6014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Recently, DNA barcoding based on mitochondrial cytochrome c oxidase subunit I (COI) has gained wide attention because of simplicity and robustness of these barcodes for species identification including birds. The current GenBank records show the COI barcodes of only one species, chukar partridge (Alectoris chukar), of the Alectoris genus. In this study, we sequenced the 694 bp segment of COI gene of the two species including, Arabian partridge (Alectoris melanocephala) and Philby's rock partridge (Alectoris philbyi) of the same genus. We also compared these sequences with earlier published barcodes of chukar partridge. The pair-wise sequence comparison showed a total of 53 variable sites across all the 9 sequences from 3 species. Within-species variable sites were found to be 4 (Alectoris chukar), 0 (Alectoris philbyi) and 3 (Alectoris melanocephala). The genetic distances among the 9 individuals varied from 0.000 to 0.056. Phylogenetic analysis using COI barcodes clearly discriminated the 3 species, while Alectoris chukar was found to be more closely related to Alectoris philbyi. Similar differentiation was also observed using 1155 bp mitochondrial control region (CR) sequences suggesting the efficiency of COI gene for phylogenetic reconstruction and interspecific identification. This is the first study reporting the barcodes of Arabian partridge and Philby's rock partridge.
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Concerted evolution of duplicated mitochondrial control regions in three related seabird species. BMC Evol Biol 2010; 10:14. [PMID: 20074358 PMCID: PMC2820450 DOI: 10.1186/1471-2148-10-14] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2009] [Accepted: 01/14/2010] [Indexed: 12/17/2022] Open
Abstract
Background Many population genetic and phylogenetic analyses of mitochondrial DNA (mtDNA) assume that mitochondrial genomes do not undergo recombination. Recently, concerted evolution of duplicated mitochondrial control regions has been documented in a range of taxa. Although the molecular mechanism that facilitates concerted evolution is unknown, all proposed mechanisms involve mtDNA recombination. Results Here, we document a duplication of a large region (cytochrome b, tRNAThr, tRNAPro, ND6, tRNAGlu and the control region) in the mitochondrial genome of three related seabird species. To investigate the evolution of duplicate control regions, we sequenced both control region copies (CR1 and CR2) from 21 brown (Sula leucogaster), 21 red-footed (S. sula) and 21 blue-footed boobies (S. nebouxii). Phylogenetic analysis suggested that the duplicated control regions are predominantly evolving in concert; however, approximately 51 base pairs at the 5' end of CR1 and CR2 exhibited a discordant phylogenetic signal and appeared to be evolving independently. Conclusions Both the structure of the duplicated region and the conflicting phylogenetic signals are remarkably similar to a pattern found in Thalassarche albatrosses, which are united with boobies in a large clade that includes all procellariiform and most pelecaniform seabirds. Therefore we suggest that concerted evolution of duplicated control regions either is taxonomically widespread within seabirds, or that it has evolved many times.
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