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Sunga J, Humber J, Broders HG. Co-roosting relationships are consistent across years in a bat maternity group. Sci Rep 2024; 14:1395. [PMID: 38228618 PMCID: PMC10791638 DOI: 10.1038/s41598-023-50191-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Accepted: 12/16/2023] [Indexed: 01/18/2024] Open
Abstract
Long-lived, group living animals have the potential to form multiyear relationships. In some temperate bat species, maternity groups break apart and rejoin both daily, as females depart to forage and select day roosts to use, and annually, as bats leave for and return from hibernation. Here, we investigated whether bats have persistent social preferences by testing whether relationships between dyads in a focal year could be predicted by previous years. We also hypothesized that experience influences social preferences and predicted that an individual's age would influence its network position, while familiarity with bats of the same cohort would drive persistent social preferences. We quantified roost co-occurrence in little brown myotis (Myotis lucifugus) in Salmonier Nature Park, Newfoundland, Canada both within and among years. We found that roost co-occurrence patterns of previous years still had predictive value even when accounting for potential roost fidelity. However, we found no evidence that cohort familiarity or age explained any of the variation. Overall, we found long-term patterns of association in this temperate bat species that suggest levels of social complexity akin to other large mammal species.
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Affiliation(s)
- Julia Sunga
- Department of Biology, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada
| | - Jessica Humber
- Department of Fisheries, Forestry and Agriculture, Government of Newfoundland and Labrador, 192 Wheeler's Road, PO Box 2007, Corner Brook, NL, A2H 7S1, Canada
| | - Hugh G Broders
- Department of Biology, Saint Mary's University, Halifax, NS, B3H 3C3, Canada.
- Department of Biology, University of Waterloo, 200 University Ave W, Waterloo, ON, N2L 3G1, Canada.
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Sunga JS, Humber J, Rodrigues B, McGuire L, Broders H. Long-Distance Movement over a Period of Days by a Female Myotis lucifugus in Newfoundland, Canada. Northeast Nat (Steuben) 2021. [DOI: 10.1656/045.028.0214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Julia S. Sunga
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Jessica Humber
- Department of Fisheries and Land Resources, Government of Newfoundland and Labrador, Corner Brook, NL A2H 6JB, Canada
| | - Bruce Rodrigues
- Department of Fisheries and Land Resources, Government of Newfoundland and Labrador, Corner Brook, NL A2H 6JB, Canada
| | - Liam McGuire
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Hugh Broders
- Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada
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Mordue S, Aegerter J, Mill A, Dawson DA, Crepaldi C, Wolff K. Population structure, gene flow and relatedness of Natterer’s bats in Northern England. Mamm Biol 2021. [DOI: 10.1007/s42991-021-00102-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractThere have been significant declines in population numbers of many bat species in the United Kingdom, including Natterer’s batsMyotis nattereri, over the last century, largely due to anthropogenic changes. The philopatry, which temperate-zone bats often exhibit to their natal landscapes, in combination with anthropogenic threats, can lead to fragmentation, isolation and sub-division of populations. This may result in bottlenecks and declines in genetic diversity. Multi-scaled research is required to disentangle how the variation in the physical traits of bat species (e.g. affecting flight), as well as their social and behavioural traits (e.g. community size, migration, breeding systems), may affect the genetic health of populations and provide a potential buffer against fragmentation. We used microsatellite markers to characterise the genetic diversity and population structure present in Natterer’s bat colonies to determine whether summer roosting bat colonies were spatially differentiated or part of a meta-population. Analyses of population structure and measures of genetic relatedness suggest spatially differentiated populations of bats exhibit long term site fidelity to summer roosting sites, whilst high genetic diversity at sites indicates gene exchange occurs via swarming sites. Natterer’s bats in northern England may travel greater distances to swarming sites than has been previously documented.
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Francisco FO, Santiago LR, Mizusawa YM, Oldroyd BP, Arias MC. Population structuring of the ubiquitous stingless bee Tetragonisca angustula in southern Brazil as revealed by microsatellite and mitochondrial markers. INSECT SCIENCE 2017; 24:877-890. [PMID: 27334308 DOI: 10.1111/1744-7917.12371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/27/2016] [Accepted: 05/05/2016] [Indexed: 06/06/2023]
Abstract
Tetragonisca angustula is one of the most widespread stingless bees in the Neotropics. This species swarms frequently and is extremely successful in urban environments. In addition, it is one of the most popular stingless bee species for beekeeping in Latin America, so nest transportation and trading is common. Nest transportation can change the genetic structure of the host population, reducing inbreeding and increasing homogenization. Here, we evaluate the genetic structure of 17 geographic populations of T. angustula in southern Brazil to quantify the level of genetic differentiation between populations. Analyses were conducted on partially sequenced mitochondrial genes and 11 microsatellite loci of 1002 workers from 457 sites distributed on the mainland and on 3 islands. Our results show that T. angustula populations are highly differentiated as demonstrated by mitochondrial DNA (mtDNA) and microsatellite markers. Of 73 haplotypes, 67 were population-specific. MtDNA diversity was low in 9 populations but microsatellite diversity was moderate to high in all populations. Microsatellite data suggest 10 genetic clusters and low level of gene flow throughout the studied area. However, physical barriers, such as rivers and mountain ranges, or the presence or absence of forest appear to be unrelated to population clusters. Factors such as low dispersal, different ecological conditions, and isolation by distance are most likely shaping the population structure of this species. Thus far, nest transportation has not influenced the general population structure in the studied area. However, due to the genetic structure we found, we recommend that nest transportation should only occur within and between populations that are genetically similar.
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Affiliation(s)
- Flávio O Francisco
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277 - sala 320, São Paulo, SP, Brazil
- Behaviour and Genetics of Social Insects Lab, School of Life and Environmental Sciences A12, University of Sydney, Sydney, NSW, Australia
| | - Leandro R Santiago
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277 - sala 320, São Paulo, SP, Brazil
| | - Yuri M Mizusawa
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277 - sala 320, São Paulo, SP, Brazil
| | - Benjamin P Oldroyd
- Behaviour and Genetics of Social Insects Lab, School of Life and Environmental Sciences A12, University of Sydney, Sydney, NSW, Australia
| | - Maria C Arias
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, Rua do Matão 277 - sala 320, São Paulo, SP, Brazil
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Talbot B, Vonhof MJ, Broders HG, Fenton B, Keyghobadi N. Range-wide genetic structure and demographic history in the bat ectoparasite Cimex adjunctus. BMC Evol Biol 2016; 16:268. [PMID: 27927166 PMCID: PMC5142389 DOI: 10.1186/s12862-016-0839-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 11/25/2016] [Indexed: 11/10/2022] Open
Abstract
Background Evolutionary histories of parasite and host populations are intimately linked such that their spatial genetic structures may be correlated. While these processes have been relatively well studied in specialist parasites and their hosts, less is known about the ecological and evolutionary consequences of relationships between generalist ectoparasites and their hosts. The aim of this study was to investigate the genetic structure and demographic history of a bat ectoparasite, Cimex adjunctus, whose host affinity is weak but the biology of the potential hosts have been well studied. This ectoparasite has been hypothesized to rely on its hosts for dispersal due to its low inherent dispersal potential. Here we describe genetic diversity and demographic history in C. adjunctus through most of its range in North America. We investigated variation at the cytochrome c oxidase 1 mitochondrial gene and nine microsatellite markers, and tested the prediction that genetic diversity in C. adjunctus is spatially structured. We also tested the prediction that demographic history in C. adjunctus is characterized by range and demographic expansion as a consequence of post-Pleistocene climate warming. Results We found stronger spatial structuring of genetic diversity in C. adjunctus than has been quantified in two of its hosts, but contrast in amount of variation explained by host association with different genetic markers (i.e., nuclear vs mitochondrial DNA). Also, C. adjunctus’ history is not primarily characterized by demographic and range expansion, as is the case with two of its key hosts. Conclusions Our study shows different patterns of genetic structure and demographic history in C. adjunctus than have been detected in two of its key hosts. Our results suggest an effect of a loose parasite-host relationship and anti-parasitism strategies on genetic structure and post-Pleistocene recovery of population size. Electronic supplementary material The online version of this article (doi:10.1186/s12862-016-0839-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Benoit Talbot
- Department of Biology, University of Western Ontario, 1151 Richmond Street, London, ON, Canada.
| | - Maarten J Vonhof
- Department of Biological Sciences, Western Michigan University, 1903 W Michigan Avenue, Kalamazoo, MI, USA
| | - Hugh G Broders
- Department of Biology, Saint Mary's University, 923 Robie Street, Halifax, NS, Canada
| | - Brock Fenton
- Department of Biology, University of Western Ontario, 1151 Richmond Street, London, ON, Canada
| | - Nusha Keyghobadi
- Department of Biology, University of Western Ontario, 1151 Richmond Street, London, ON, Canada
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Vonhof MJ, Amelon SK, Currie RR, McCracken GF. Genetic structure of winter populations of the endangered Indiana bat (Myotis sodalis) prior to the white nose syndrome epidemic: implications for the risk of disease spread. CONSERV GENET 2016. [DOI: 10.1007/s10592-016-0841-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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