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Bustillo‐de la Rosa D, Barrero A, Traba J, García JT, Morales MB, Vázquez‐Domínguez E. Landscape features influencing gene flow and connectivity of an endangered passerine. Ecol Evol 2024; 14:e11078. [PMID: 38756688 PMCID: PMC11097005 DOI: 10.1002/ece3.11078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 01/10/2024] [Accepted: 02/12/2024] [Indexed: 05/18/2024] Open
Abstract
Dispersal of individuals and gene flow are crucial aspects to maintain genetic diversity and viability of populations, especially in the case of threatened species. Landscape composition and structure may facilitate or limit individual movement within and among populations. We used a landscape genetics approach to assess the connectivity patterns of the threatened Dupont's lark (Chersophilus duponti subsp. duponti), considering their genetic patterns and the landscape features associated with its gene flow in Spain. We analysed the genetic relatedness based on 11 species-specific polymorphic microsatellites on 416 Dupont's lark individuals sampled across peninsular Spain between 2017 and 2019, covering most of the European distribution of the species. To assess the relationship between the landscape composition and the species gene flow, we estimated genetic distance at the individual level (Dps). Next, we built a set of environmental surfaces from two time periods (years 1990 and 2018), based on factors such as land use and topography, influencing individuals' movement. We then obtained resistance surfaces from an optimization process on landscape variables. Landscape genetics analyses were done for single and composite surface models for each year separately. Our findings from both time points show that scatter or mosaic-structured vegetation composed by low agricultural and tree cover and high presence of sclerophyllous shrubs favoured Dupont's lark dispersal, while dense and continuous tree cover, as well as areas of intensive agriculture, were limiting factors. Our results suggest the importance of steppe habitat patches for the species' establishment and dispersal. In addition, our results provide key information to develop conservation measures, including conserving and restoring steppe habitats as scattered and/or mosaic-structured vegetation that could warrant the connectivity and persistence of Dupont's lark populations.
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Affiliation(s)
- Daniel Bustillo‐de la Rosa
- Terrestrial Ecology Group (TEG‐UAM). Department of EcologyUniversidad Autónoma de MadridMadridSpain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC‐UAM)Universidad Autónoma de MadridMadridSpain
| | - Adrián Barrero
- Terrestrial Ecology Group (TEG‐UAM). Department of EcologyUniversidad Autónoma de MadridMadridSpain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC‐UAM)Universidad Autónoma de MadridMadridSpain
| | - Juan Traba
- Terrestrial Ecology Group (TEG‐UAM). Department of EcologyUniversidad Autónoma de MadridMadridSpain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC‐UAM)Universidad Autónoma de MadridMadridSpain
| | - Jesús T. García
- Instituto de Investigación en Recursos Cinegéticos (IREC, CSIC‐UCLM)Ciudad RealSpain
| | - Manuel B. Morales
- Terrestrial Ecology Group (TEG‐UAM). Department of EcologyUniversidad Autónoma de MadridMadridSpain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC‐UAM)Universidad Autónoma de MadridMadridSpain
| | - Ella Vázquez‐Domínguez
- Departamento de Ecología de la Biodiversidad, Instituto de EcologíaUniversidad Nacional Autónoma de MéxicoCiudad de MéxicoMexico
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Song Y, Xu GB, Long KX, Wang CC, Chen R, Li H, Jiang XL, Deng M. Ensemble species distribution modeling and multilocus phylogeography provide insight into the spatial genetic patterns and distribution dynamics of a keystone forest species, Quercus glauca. BMC PLANT BIOLOGY 2024; 24:168. [PMID: 38438905 PMCID: PMC10910841 DOI: 10.1186/s12870-024-04830-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 02/16/2024] [Indexed: 03/06/2024]
Abstract
BACKGROUND Forests are essential for maintaining species diversity, stabilizing local and global climate, and providing ecosystem services. Exploring the impact of paleogeographic events and climate change on the genetic structure and distribution dynamics of forest keystone species could help predict responses to future climate change. In this study, we combined an ensemble species distribution model (eSDM) and multilocus phylogeography to investigate the spatial genetic patterns and distribution change of Quercus glauca Thunb, a keystone of East Asian subtropical evergreen broad-leaved forest. RESULTS A total of 781 samples were collected from 77 populations, largely covering the natural distribution of Q. glauca. The eSDM showed that the suitable habitat experienced a significant expansion after the last glacial maximum (LGM) but will recede in the future under a general climate warming scenario. The distribution centroid will migrate toward the northeast as the climate warms. Using nuclear SSR data, two distinct lineages split between east and west were detected. Within-group genetic differentiation was higher in the West than in the East. Based on the identified 58 haplotypes, no clear phylogeographic structure was found. Populations in the Nanling Mountains, Wuyi Mountains, and the southwest region were found to have high genetic diversity. CONCLUSIONS A significant negative correlation between habitat stability and heterozygosity might be explained by the mixing of different lineages in the expansion region after LGM and/or hybridization between Q. glauca and closely related species. The Nanling Mountains may be important for organisms as a dispersal corridor in the west-east direction and as a refugium during the glacial period. This study provided new insights into spatial genetic patterns and distribution dynamics of Q. glauca.
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Affiliation(s)
- Ying Song
- College of Forestry, The Laboratory of Forestry Genetics, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Gang-Biao Xu
- College of Forestry, The Laboratory of Forestry Genetics, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Ke-Xin Long
- College of Forestry, The Laboratory of Forestry Genetics, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Chun-Cheng Wang
- College of Landscape Architecture, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Ran Chen
- College of Forestry, The Laboratory of Forestry Genetics, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - He Li
- College of Forestry, The Laboratory of Forestry Genetics, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China
| | - Xiao-Long Jiang
- College of Forestry, The Laboratory of Forestry Genetics, Central South University of Forestry and Technology, Changsha, 410004, Hunan, China.
| | - Min Deng
- School of Ecology and Environmental Sciences, Yunnan University, Kunming, Yunnan, 650500, China.
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Luna LW, Williams LM, Duren K, Tyl R, Toews DPL, Avery JD. Whole genome assessment of a declining game bird reveals cryptic genetic structure and insights for population management. Mol Ecol 2023; 32:5498-5513. [PMID: 37688483 DOI: 10.1111/mec.17129] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 08/23/2023] [Accepted: 08/30/2023] [Indexed: 09/11/2023]
Abstract
Population genomics applied to game species conservation can help delineate management units, ensure appropriate harvest levels and identify populations needing genetic rescue to safeguard their adaptive potential. The ruffed grouse (Bonasa umbellus) is rapidly declining in much of the eastern USA due to a combination of forest maturation and habitat fragmentation. More recently, mortality from West Nile Virus may have affected connectivity of local populations; however, genetic approaches have never explicitly investigated this issue. In this study, we sequenced 54 individual low-coverage (~5X) grouse genomes to characterize population structure, assess migration rates across the landscape to detect potential barriers to gene flow and identify genomic regions with high differentiation. We identified two genomic clusters with no clear geographic correlation, with large blocks of genomic differentiation associated with chromosomes 4 and 20, likely due to chromosomal inversions. After excluding these putative inversions from the data set, we found weak but nonsignificant signals of population subdivision. Estimated gene flow revealed reduced rates of migration in areas with extensive habitat fragmentation and increased genetic connectivity in areas with less habitat fragmentation. Our findings provide a benchmark for wildlife managers to compare and scale the genetic diversity and structure of ruffed grouse populations in Pennsylvania and across the eastern USA, and we also reveal structural variation in the grouse genome that requires further study to understand its possible effects on individual fitness and population distribution.
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Affiliation(s)
- Leilton W Luna
- Department of Ecosystem Science and Management, Penn State University, University Park, Pennsylvania, USA
| | - Lisa M Williams
- Bureau of Wildlife Management, Pennsylvania Game Commission, Harrisburg, Pennsylvania, USA
| | - Kenneth Duren
- Bureau of Wildlife Management, Pennsylvania Game Commission, Harrisburg, Pennsylvania, USA
| | - Reina Tyl
- Bureau of Wildlife Management, Pennsylvania Game Commission, Harrisburg, Pennsylvania, USA
| | - David P L Toews
- Department of Biology, Penn State University, University Park, Pennsylvania, USA
| | - Julian D Avery
- Department of Ecosystem Science and Management, Penn State University, University Park, Pennsylvania, USA
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Diversity, distribution, and methodological considerations of haemosporidian infections among Galliformes in Alaska. Int J Parasitol Parasites Wildl 2023; 20:122-132. [PMID: 36798510 PMCID: PMC9926109 DOI: 10.1016/j.ijppaw.2023.01.008] [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: 09/29/2022] [Revised: 01/24/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023]
Abstract
Using samples spanning 10-degrees of latitude in Alaska, we provide the first comparative assessment of avian haemosporidia distribution of Arctic Alaska with subarctic host populations for four species of grouse and three species of ptarmigan (Galliformes). We found a high overall prevalence for at least one haemospordian genus (88%; N = 351/400), with spruce grouse (Canachites canadensis) showing the highest prevalence (100%; N = 54/54). Haemoproteus and Plasmodium lineages were only observed within grouse, while Leucocytozoon species were found within both grouse and ptarmigan. Further, different Leucocytozoon lineages were obtained from blood and tissue samples from the same individual, potentially due to the differential timing and duration of blood and tissue stages. Using different primer sets, we were able to identify different Leucocytozoon lineages within 55% (N = 44/80) of sequenced individuals, thereby detecting coinfections that may have otherwise gone undetected. The commonly used Haemoproteus/Plasmodium primers amplified Leucocytozoon for 90% (N = 103/115) of the products sequenced, highlighting the potential value of alternate primers to identify intra-genus coinfections and the importance of obtaining sequence information rather than relying solely on PCR amplification to assess parasite diversity. Overall, this dataset provides baseline information on parasite lineage distributions to assess the range expansion associated with climate change into Arctic regions and underscores methodological considerations for future studies.
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Li H, Xu J, Wang S, Wang P, Rao W, Hou B, Zhang Y. Genetic Differentiation and Widespread Mitochondrial Heteroplasmy among Geographic Populations of the Gourmet Mushroom Thelephora ganbajun from Yunnan, China. Genes (Basel) 2022; 13:genes13050854. [PMID: 35627240 PMCID: PMC9141859 DOI: 10.3390/genes13050854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/06/2022] [Accepted: 05/08/2022] [Indexed: 11/30/2022] Open
Abstract
The mitochondrial genomes are generally considered non-recombining and homoplasmic in nature. However, our previous study provided the first evidence of extensive and stable mitochondrial heteroplasmy in natural populations of the basidiomycete fungus Thelephora ganbajun from Yunnan province, China. The heteroplasmy was characterized by the presence of two types of introns residing at adjacent but different sites in the cytochrome oxidase subunits I (cox1) gene within an individual strain. However, the frequencies of these two introns among isolates from different geographical populations and the implications for the genetic structure in natural populations have not been investigated. In this study, we analyzed DNA sequence variation at the internal transcribed spacer (ITS) regions of the nuclear ribosomal RNA gene cluster among 489 specimens from 30 geographic locations from Yunnan and compared that variation with distribution patterns of the two signature introns in the cox1 gene that are indicative of heteroplasmy in this species. In our samples, evidence for gene flow, abundant genetic diversity, and genotypic uniqueness among geographic samples in Yunnan were revealed by ITS sequence variation. While there was insignificant positive correlation between geographic distance and genetic differentiation among the geographic samples based on ITS sequences, a moderate significant correlation was found between ITS sequence variation, geographical distance of sampling sites, and distribution patterns of the two heteroplasmic introns in the cox1 gene. Interestingly, there was a significantly negative correlation between the copy numbers of the two co-existing introns. We discussed the implications of our results for a better understanding of the spread of stable mitochondrial heteroplasmy, mito-nuclear interactions, and conservation of this important gourmet mushroom.
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Affiliation(s)
- Haixia Li
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650032, China; (H.L.); (J.X.); (S.W.); (P.W.)
- School of Life Science, Yunnan University, Kunming 650032, China; (W.R.); (B.H.)
| | - Jianping Xu
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650032, China; (H.L.); (J.X.); (S.W.); (P.W.)
- Department of Biology, McMaster University, Hamilton, ON L8S 4K1, Canada
| | - Shaojuan Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650032, China; (H.L.); (J.X.); (S.W.); (P.W.)
- School of Life Science, Yunnan University, Kunming 650032, China; (W.R.); (B.H.)
| | - Pengfei Wang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650032, China; (H.L.); (J.X.); (S.W.); (P.W.)
| | - Wanqin Rao
- School of Life Science, Yunnan University, Kunming 650032, China; (W.R.); (B.H.)
| | - Bin Hou
- School of Life Science, Yunnan University, Kunming 650032, China; (W.R.); (B.H.)
| | - Ying Zhang
- State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, Yunnan University, Kunming 650032, China; (H.L.); (J.X.); (S.W.); (P.W.)
- Correspondence:
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Welke CA, Graham B, Conover RR, Rivers JW, Burg TM. Habitat-linked genetic structure for white-crowned sparrow ( Zonotrichia leucophrys): Local factors shape population genetic structure. Ecol Evol 2021; 11:11700-11717. [PMID: 34522334 PMCID: PMC8427623 DOI: 10.1002/ece3.7887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/29/2021] [Accepted: 06/08/2021] [Indexed: 11/15/2022] Open
Abstract
Ecological, environmental, and geographic factors all influence genetic structure. Species with broad distributions are ideal systems because they cover a range of ecological and environmental conditions allowing us to test which components predict genetic structure. This study presents a novel, broad geographic approach using molecular markers, morphology, and habitat modeling to investigate rangewide and local barriers causing contemporary genetic differentiation within the geographical range of three white-crowned sparrow (Zonotrichia leucophrys) subspecies: Z. l. gambelii, Z. l. oriantha, and Z. l. pugetensis. Three types of genetic markers showed geographic distance between sampling sites, elevation, and ecosystem type are key factors contributing to population genetic structure. Microsatellite markers revealed white-crowned sparrows do not group by subspecies, but instead indicated four groupings at a rangewide scale and two groupings based on coniferous and deciduous ecosystems at a local scale. Our analyses of morphological variation also revealed habitat differences; sparrows from deciduous ecosystems are larger than individuals from coniferous ecosystems based on principal component analyses. Habitat modeling showed isolation by distance was prevalent in describing genetic structure, but isolation by resistance also had a small but significant influence. Not only do these findings have implications concerning the accuracy of subspecies delineations, they also highlight the critical role of local factors such as habitat in shaping contemporary population genetic structure of species with high dispersal ability.
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Affiliation(s)
- Catherine A. Welke
- Department of Biological SciencesUniversity of LethbridgeLethbridgeABCanada
- Department of BiologyThe King's UniversityEdmontonABCanada
| | - Brendan Graham
- Department of Biological SciencesUniversity of LethbridgeLethbridgeABCanada
| | - Ross R. Conover
- Department of Natural SciencesPaul Smith's CollegePaul SmithsNew YorkUSA
| | - James W. Rivers
- Department of Forest Engineering, Resources, and ManagementOregon State UniversityCorvallisOregonUSA
| | - Theresa M. Burg
- Department of Biological SciencesUniversity of LethbridgeLethbridgeABCanada
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Vaissi S, Sharifi M. The least‐cost path analysis of landscape genetics identifies two dispersal routes for the threatened Kaiser's mountain newt (Caudata: Salamandridae). J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Somaye Vaissi
- Department of Biology, Faculty of Science Razi University Kermanshah Iran
| | - Mozafar Sharifi
- Department of Biology, Faculty of Science Razi University Kermanshah Iran
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Backhouse F, Dalziell AH, Magrath RD, Rice AN, Crisologo TL, Welbergen JA. Differential geographic patterns in song components of male Albert's lyrebirds. Ecol Evol 2021; 11:2701-2716. [PMID: 33767830 PMCID: PMC7981226 DOI: 10.1002/ece3.7225] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/18/2020] [Accepted: 12/23/2020] [Indexed: 12/25/2022] Open
Abstract
Geographic variation in bird song has received much attention in evolutionary studies, yet few consider components within songs that may be subject to different constraints and follow different evolutionary trajectories. Here, we quantify patterns of geographic variation in the socially transmitted "whistle" song of Albert's lyrebirds (Menura alberti), an oscine passerine renowned for its remarkable vocal abilities. Albert's lyrebirds are confined to narrow stretches of suitable habitat in Australia, allowing us to map likely paths of cultural transmission using a species distribution model and least cost paths. We use quantitative methods to divide the songs into three components present in all study populations: the introductory elements, the song body, and the final element. We compare geographic separation between populations with variation in these components as well as the full song. All populations were distinguishable by song, and songs varied according to the geographic distance between populations. However, within songs, only the introductory elements and song body could be used to distinguish among populations. The song body and final element changed with distance, but the introductory elements varied independently of geographic separation. These differing geographic patterns of within-song variation are unexpected, given that the whistle song components are always produced in the same sequence and may be perceived as a temporally discrete unit. Knowledge of such spatial patterns of within-song variation enables further work to determine possible selective pressures and constraints acting on each song component and provides spatially explicit targets for preserving cultural diversity. As such, our study highlights the importance for science and conservation of investigating spatial patterns within seemingly discrete behavioral traits at multiple levels of organization.
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Affiliation(s)
- Fiona Backhouse
- The Hawkesbury Institute for the EnvironmentWestern Sydney UniversityRichmondNSWAustralia
| | - Anastasia H. Dalziell
- The Hawkesbury Institute for the EnvironmentWestern Sydney UniversityRichmondNSWAustralia
- Centre for Sustainable Ecosystem SolutionsSchool of Earth, Atmospheric and Life SciencesUniversity of WollongongWollongongNSWAustralia
- Fuller Evolutionary Biology ProgramCornell Lab of OrnithologyCornell UniversityIthacaNYUSA
- Macaulay LibraryCornell Lab of OrnithologyCornell UniversityIthacaNYUSA
- Center for Conservation BioacousticsCornell Lab of OrnithologyCornell UniversityIthacaNYUSA
| | - Robert D. Magrath
- Research School of Biologythe Australian National UniversityCanberraACTAustralia
| | - Aaron N. Rice
- Center for Conservation BioacousticsCornell Lab of OrnithologyCornell UniversityIthacaNYUSA
| | - Taylor L. Crisologo
- The Hawkesbury Institute for the EnvironmentWestern Sydney UniversityRichmondNSWAustralia
- Macaulay LibraryCornell Lab of OrnithologyCornell UniversityIthacaNYUSA
| | - Justin A. Welbergen
- The Hawkesbury Institute for the EnvironmentWestern Sydney UniversityRichmondNSWAustralia
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McMahan CD, Fuentes-Montejo CE, Ginger L, Carrasco JC, Chakrabarty P, Matamoros WA. Climate change models predict decreases in the range of a microendemic freshwater fish in Honduras. Sci Rep 2020; 10:12693. [PMID: 32728139 PMCID: PMC7391645 DOI: 10.1038/s41598-020-69579-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 07/14/2020] [Indexed: 11/25/2022] Open
Abstract
Despite their incredible diversity, relatively little work has been done to assess impacts of climate change on tropical freshwater organisms. Chortiheros wesseli is a species of Neotropical cichlid (Cichlidae: Cichlinae) restricted to only a few river drainages in the Caribbean-slope of Honduras. Little is known about this species and few specimens had been collected until recently; however, our work with this species in the wild has led to a better understanding of its ecology and habitat preferences making it an excellent model for how freshwater fishes can be affected by climate change. This study assesses the distribution and habitats of Chortiheros wesseli using a combination of field data and species distribution modeling. Results indicate this species is largely limited to its current range, with no realistic suitable habitat nearby. Empirical habitat data show that this species is limited to narrow and shallow flowing waters with rapids and boulders. This habitat type is highly influenced by precipitation, which contributed the greatest influence on the models of present and future habitat suitability. Although several localities are within boundaries of national protected areas, species distribution models all predict a reduction in the range of this freshwater fish based on climate change scenarios. The likelihood of a reduced range for this species will be intensified by adverse changes to its preferred habitats.
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Affiliation(s)
- Caleb D McMahan
- Field Museum of Natural History, 1400 S. Lake Shore Dr., Chicago, IL, USA.
| | - César E Fuentes-Montejo
- Escuela de Biología, Facultad de Ciencias Químicas y Farmacia, Universidad de San Carlos de Guatemala, Edificio T10, Ciudad Universitaria, Zona 12, 01012, Ciudad de Guatemala, Guatemala
| | - Luke Ginger
- Heal the Bay, 1444 9th Street, Santa Monica, CA, USA
| | - Juan Carlos Carrasco
- Departamento de Biología, Facultad de Ciencias del Mary Ambientales, CASEM, Universidad de Cádiz, Puerto Real, 11510, Cádiz, Spain
- Instituto Técnologico Superior de Tela, Universidad Nacional Autónoma de Honduras, Boulevard Suyapa, Tegucigalpa, Honduras
| | - Prosanta Chakrabarty
- LSU Museum of Natural Science, Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Wilfredo A Matamoros
- Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Libramiento Norte Poniente 1150, Col. Lajas Maciel, C.P. 29039, Tuxtla Gutiérrez, Chiapas, Mexico
- Maestría en Ciencias en Biodiversidad y Conservación de Ecosistemas Tropicales, Instituto de Ciencias Biológicas, UNICACH, Libramiento Norte # 1150, Col. Lajas Maciel, C.P. 29039, Tuxtla Gutiérrez, Chiapas, México
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10
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Tsiftsis S, Djordjević V. Modelling sexually deceptive orchid species distributions under future climates: the importance of plant-pollinator interactions. Sci Rep 2020; 10:10623. [PMID: 32606363 PMCID: PMC7327032 DOI: 10.1038/s41598-020-67491-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 06/04/2020] [Indexed: 12/03/2022] Open
Abstract
Biotic interactions play an important role in species distribution models, whose ignorance may cause an overestimation of species' potential distributions. Species of the family Orchidaceae are almost totally dependent on mycorrhizal symbionts and pollinators, with sexually deceptive orchids being often highly specialized, and thus the interactions with their pollinators are expected to strongly affect distribution predictions. We used Maxent algorithm to explore the extent of current and future habitat suitability for two Greek endemic sexually deceptive orchids (Ophrys argolica and Ophrys delphinensis) in relation to the potential distribution of their unique pollinator (Anthophora plagiata). Twelve climate change scenarios were used to predict future distributions. Results indicated that the most important factors determining potential distribution were precipitation seasonality for O. argolica and geological substrate for O. delphinensis. The current potential distribution of the two orchids was almost of the same extent but spatially different, without accounting for their interaction with A. plagiata. When the interaction was included in the models, their potentially suitable area decreased for both species. Under future climatic conditions, the effects of the orchid-pollinator interaction were more intense. Specifically, O. argolica was restricted in specific areas of southern Greece, whereas O. delphinensis was expected to become extinct. Our findings highlighted the significant role of plant–pollinator interactions in species distribution models. Failing to study such interactions might expose plant species to serious conservation issues.
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Affiliation(s)
- Spyros Tsiftsis
- Department of Forest and Natural Environment Sciences, International Hellenic University, 1st km Dramas-Microchoriou, 66100, Drama, Greece. .,Global Change Research Institute, Academy of Science of the Czech Republic, Bělidla 986/4a, 603 00, Brno, Czech Republic.
| | - Vladan Djordjević
- Faculty of Biology, Institute of Botany and Botanical Garden, University of Belgrade, Takovska 43, 11 000, Belgrade, Serbia
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Land Use Change and Wildlife Conservation—Case Analysis of LULC Change of Pench-Satpuda Wildlife Corridor in Madhya Pradesh, India. SUSTAINABILITY 2020. [DOI: 10.3390/su12124902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
To the burgeoning population, the tiger reserves of central India have been islanded by human habitation and are interconnected by narrow ‘wildlife corridors’ for migration of wildlife. Pench-Satpuda wildlife corridor is one such critical wildlife corridor that interconnects the Pench Tiger Reserve and Satpuda Tiger Reserve in central India. Land Use Land Cover (LULC) change of this corridor between April 2002 and April 2019 was analyzed using GIS and Remote Sensing Techniques. The study finds a systematic loss of 10,376.74 ha and 7406.24 ha of dense forests and open forests respectively, thus indicating large scale degradation of the area. The study found that a net area of 2054.60 of dense forests and open forests were diverted for agriculture indicating extensive encroachment of forest land. Water bodies have reduced by 25.41% indicating shrinkage in water bodies in the period under study. The presence of rich coal deposits in the wildlife corridor and operational coal mines in the near vicinity of the wildlife corridor is a matter of serious concern. This study attempts to highlight the importance of long-term sustenance of the Pench-Satpuda wildlife corridor for maintaining the genetic pool of wildlife in the landscape.
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Déaux EC, O'Neil NP, Jensen AM, Charrier I, Iwaniuk AN. Courtship display speed varies daily and with body size in the Ruffed Grouse (
Bonasa umbellus
). Ethology 2020. [DOI: 10.1111/eth.13004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Eloïse C. Déaux
- Department de Cognition Comparée Université de Neuchâtel Neuchâtel Switzerland
| | - Nicholas P. O'Neil
- Department of Neuroscience University of Lethbridge Lethbridge AB Canada
| | - Ashley M. Jensen
- Department of Biology University of Lethbridge Lethbridge AB Canada
| | - Isabelle Charrier
- Université Paris‐Saclay Université Paris‐Sud CNRS UMR 9197 Institut des Neurosciences Paris‐Saclay Orsay France
| | - Andrew N. Iwaniuk
- Department of Neuroscience University of Lethbridge Lethbridge AB Canada
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Honeycutt RL, Proudfoot GA, Silvy NJ. Mitochondrial DNA variation of the ruffed grouse (Bonasa umbellus). BMC Res Notes 2019; 12:570. [PMID: 31511073 PMCID: PMC6737704 DOI: 10.1186/s13104-019-4607-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 09/04/2019] [Indexed: 12/01/2022] Open
Abstract
Objective The ruffed grouse, Bonasa umbellus, is broadly distributed across North America and displays considerable taxonomic diversity. Except for a genetic study of some western populations of ruffed grouse, nothing is known about genetic variation in other regions of Canada and the United States. Our objective is to examine patterns of mitochondrial DNA (mtDNA) variation in the ruffed grouse across western, central, and eastern parts of its distribution. We compare patterns of mtDNA variation to those characterized by morphology and ecology. Additionally, we evaluate the demographic history of the species based on mitochondrial haplotype diversity. Results Patterns of mtDNA variation revealed geographic subdivision, with populations of ruffed grouse subdivided into 3 to 4 genetically distinct groups. This subdivision partially coincided with the ranges of described subspecies. Behavioral traits prohibiting long-distance movement and barriers to dispersal in response to physiography and unsuitable habitat help explain these patterns of subdivision. Historically, the ruffed grouse probably experienced a population expansion, possibly in response to changes during the Pleistocene.
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Affiliation(s)
- Rodney L Honeycutt
- Natural Science Division, Pepperdine University, 24255 Pacific Coast Highway, Malibu, CA, 90263, USA. .,Department of Wildlife and Fisheries Sciences, Texas A&M University, 2258 TAMU, College Station, TX, 77843-2258, USA.
| | - Glenn A Proudfoot
- Department of Wildlife and Fisheries Sciences, Texas A&M University, 2258 TAMU, College Station, TX, 77843-2258, USA
| | - Nova J Silvy
- Department of Wildlife and Fisheries Sciences, Texas A&M University, 2258 TAMU, College Station, TX, 77843-2258, USA
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