Tags

Type your tag names separated by a space and hit enter

Island bat diets: does it matter more who you are or where you live?
Mol Ecol 2014; 23(15):3684-94ME

Abstract

Differences in body size, echolocation call frequency and location may result in diet partitioning among bat species. Comparisons between island populations are one way to evaluate these competing hypotheses. We conducted a species-level diet analysis of three Rhinolophus and one Hipposideros species on the Philippine islands of Cebu, Bohol and Siquijor. We identified 655 prey (MOTUs) in the guano from 77 individual bats. There was a high degree of overlap among species' diets despite differences in body size and call frequency. For example, the diet of the 3 g-Hipposideros pygmaeus (mean CF = 102 kHz) exhibited a diet overlap higher than expected by chance with all three Rhinolophus species, even the 13 g-Rhinolophus inops (mean CF = 54 kHz). We observed more convergence in diet between Rhinolophus species and H. pygmaeus than between Rhinolophus species themselves, which may be explained by the broad diet of H. pygmaeus. There was less dietary overlap between Rhinolophus virgo from two islands than between R. virgo and congeners from Cebu. These data suggest that location causes convergence in diet, but specific species characteristics may drive niche specialization. The complex interplay between location and the perceptual ability of each species leads to a situation where simple explanations, for example body size, do not translate into predictable prey partitioning. In particular, our observations raise interesting questions about the foraging strategy and adaptability of the tiny H. pygmaeus.

Authors+Show Affiliations

Biology Department, Lawrence University, 711 E. Boldt Way, Appleton, WI, 54911, USA.No affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

24666364

Citation

Sedlock, Jodi L., et al. "Island Bat Diets: Does It Matter More Who You Are or Where You Live?" Molecular Ecology, vol. 23, no. 15, 2014, pp. 3684-94.
Sedlock JL, Krüger F, Clare EL. Island bat diets: does it matter more who you are or where you live? Mol Ecol. 2014;23(15):3684-94.
Sedlock, J. L., Krüger, F., & Clare, E. L. (2014). Island bat diets: does it matter more who you are or where you live? Molecular Ecology, 23(15), pp. 3684-94. doi:10.1111/mec.12732.
Sedlock JL, Krüger F, Clare EL. Island Bat Diets: Does It Matter More Who You Are or Where You Live. Mol Ecol. 2014;23(15):3684-94. PubMed PMID: 24666364.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Island bat diets: does it matter more who you are or where you live? AU - Sedlock,Jodi L, AU - Krüger,Frauke, AU - Clare,Elizabeth L, Y1 - 2014/04/30/ PY - 2013/10/14/received PY - 2014/02/21/revised PY - 2014/03/05/accepted PY - 2014/3/27/entrez PY - 2014/3/29/pubmed PY - 2014/10/3/medline KW - Hipposideridae KW - Philippines KW - Rhinolophidae KW - diet KW - echolocation SP - 3684 EP - 94 JF - Molecular ecology JO - Mol. Ecol. VL - 23 IS - 15 N2 - Differences in body size, echolocation call frequency and location may result in diet partitioning among bat species. Comparisons between island populations are one way to evaluate these competing hypotheses. We conducted a species-level diet analysis of three Rhinolophus and one Hipposideros species on the Philippine islands of Cebu, Bohol and Siquijor. We identified 655 prey (MOTUs) in the guano from 77 individual bats. There was a high degree of overlap among species' diets despite differences in body size and call frequency. For example, the diet of the 3 g-Hipposideros pygmaeus (mean CF = 102 kHz) exhibited a diet overlap higher than expected by chance with all three Rhinolophus species, even the 13 g-Rhinolophus inops (mean CF = 54 kHz). We observed more convergence in diet between Rhinolophus species and H. pygmaeus than between Rhinolophus species themselves, which may be explained by the broad diet of H. pygmaeus. There was less dietary overlap between Rhinolophus virgo from two islands than between R. virgo and congeners from Cebu. These data suggest that location causes convergence in diet, but specific species characteristics may drive niche specialization. The complex interplay between location and the perceptual ability of each species leads to a situation where simple explanations, for example body size, do not translate into predictable prey partitioning. In particular, our observations raise interesting questions about the foraging strategy and adaptability of the tiny H. pygmaeus. SN - 1365-294X UR - https://www.unboundmedicine.com/medline/citation/24666364/Island_bat_diets:_does_it_matter_more_who_you_are_or_where_you_live L2 - https://doi.org/10.1111/mec.12732 DB - PRIME DP - Unbound Medicine ER -