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Assessing niche partitioning of co-occurring sibling bat species by DNA metabarcoding.
Mol Ecol 2018; 27(5):1273-1283ME

Abstract

Niche partitioning through foraging is a mechanism likely involved in facilitating the coexistence of ecologically similar and co-occurring animal species by separating their use of resources. Yet, this mechanism is not well understood in flying insectivorous animals. This is particularly true of bats, where many ecologically similar or cryptic species coexist. The detailed analysis of the foraging niche in sympatric, cryptic sibling species provides an excellent framework to disentangle the role of specific niche factors likely involved in facilitating coexistence. We used DNA metabarcoding to determine the prey species consumed by a population of sympatric sibling Rhinolophus euryale and Rhinolophus mehelyi whose use of habitat in both sympatric and allopatric ranges has been well established through radio tracking. Although some subtle dietary differences exist in prey species composition, the diet of both bats greatly overlapped (Ojk = 0.83) due to the consumption of the same common and widespread moths. Those dietary differences we did detect might be related to divergences in prey availabilities among foraging habitats, which prior radio tracking on the same population showed are differentially used and selected when both species co-occur. This minor dietary segregation in sympatry may be the result of foraging on the same prey-types and could contribute to reduce potential competitive interactions (e.g., for prey, acoustic space). Our results highlight the need to evaluate the spatial niche dimension in mediating the co-occurrence of similar insectivorous bat species, a niche factor likely involved in processes of bat species coexistence.

Authors+Show Affiliations

Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country UPV/EHU, Leioa, The Basque Country, Spain. School of Biological and Chemical Sciences, Queen Mary University of London, London, UK.School of Biological and Chemical Sciences, Queen Mary University of London, London, UK.Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country UPV/EHU, Leioa, The Basque Country, Spain.Section for Evolutionary Genomics, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark.Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country UPV/EHU, Leioa, The Basque Country, Spain.Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country UPV/EHU, Leioa, The Basque Country, Spain.Department of Zoology and Animal Cell Biology, Faculty of Science and Technology, University of the Basque Country UPV/EHU, Leioa, The Basque Country, Spain.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29411450

Citation

Arrizabalaga-Escudero, Aitor, et al. "Assessing Niche Partitioning of Co-occurring Sibling Bat Species By DNA Metabarcoding." Molecular Ecology, vol. 27, no. 5, 2018, pp. 1273-1283.
Arrizabalaga-Escudero A, Clare EL, Salsamendi E, et al. Assessing niche partitioning of co-occurring sibling bat species by DNA metabarcoding. Mol Ecol. 2018;27(5):1273-1283.
Arrizabalaga-Escudero, A., Clare, E. L., Salsamendi, E., Alberdi, A., Garin, I., Aihartza, J., & Goiti, U. (2018). Assessing niche partitioning of co-occurring sibling bat species by DNA metabarcoding. Molecular Ecology, 27(5), pp. 1273-1283. doi:10.1111/mec.14508.
Arrizabalaga-Escudero A, et al. Assessing Niche Partitioning of Co-occurring Sibling Bat Species By DNA Metabarcoding. Mol Ecol. 2018;27(5):1273-1283. PubMed PMID: 29411450.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessing niche partitioning of co-occurring sibling bat species by DNA metabarcoding. AU - Arrizabalaga-Escudero,Aitor, AU - Clare,Elizabeth L, AU - Salsamendi,Egoitz, AU - Alberdi,Antton, AU - Garin,Inazio, AU - Aihartza,Joxerra, AU - Goiti,Urtzi, Y1 - 2018/03/12/ PY - 2017/12/30/received PY - 2018/01/02/revised PY - 2018/01/04/accepted PY - 2018/2/8/pubmed PY - 2019/4/4/medline PY - 2018/2/8/entrez KW - coexistence KW - horseshoe bats KW - molecular diet analysis KW - niche KW - resource partitioning KW - sibling species SP - 1273 EP - 1283 JF - Molecular ecology JO - Mol. Ecol. VL - 27 IS - 5 N2 - Niche partitioning through foraging is a mechanism likely involved in facilitating the coexistence of ecologically similar and co-occurring animal species by separating their use of resources. Yet, this mechanism is not well understood in flying insectivorous animals. This is particularly true of bats, where many ecologically similar or cryptic species coexist. The detailed analysis of the foraging niche in sympatric, cryptic sibling species provides an excellent framework to disentangle the role of specific niche factors likely involved in facilitating coexistence. We used DNA metabarcoding to determine the prey species consumed by a population of sympatric sibling Rhinolophus euryale and Rhinolophus mehelyi whose use of habitat in both sympatric and allopatric ranges has been well established through radio tracking. Although some subtle dietary differences exist in prey species composition, the diet of both bats greatly overlapped (Ojk = 0.83) due to the consumption of the same common and widespread moths. Those dietary differences we did detect might be related to divergences in prey availabilities among foraging habitats, which prior radio tracking on the same population showed are differentially used and selected when both species co-occur. This minor dietary segregation in sympatry may be the result of foraging on the same prey-types and could contribute to reduce potential competitive interactions (e.g., for prey, acoustic space). Our results highlight the need to evaluate the spatial niche dimension in mediating the co-occurrence of similar insectivorous bat species, a niche factor likely involved in processes of bat species coexistence. SN - 1365-294X UR - https://www.unboundmedicine.com/medline/citation/29411450/Assessing_niche_partitioning_of_co_occurring_sibling_bat_species_by_DNA_metabarcoding_ L2 - https://doi.org/10.1111/mec.14508 DB - PRIME DP - Unbound Medicine ER -