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The diet of Myotis lucifugus across Canada: assessing foraging quality and diet variability.
Mol Ecol 2014; 23(15):3618-32ME

Abstract

Variation in prey resources influences the diet and behaviour of predators. When prey become limiting, predators may travel farther to find preferred food or adjust to existing local resources. When predators are habitat limited, local resource abundance impacts foraging success. We analysed the diet of Myotis lucifugus (little brown bats) from Nova Scotia (eastern Canada) to the Northwest Territories (north-western Canada). This distribution includes extremes of season length and temperature and encompasses colonies on rural monoculture farms, and in urban and unmodified areas. We recognized nearly 600 distinct species of prey, of which ≈30% could be identified using reference sequence libraries. We found a higher than expected use of lepidopterans, which comprised a range of dietary richness from ≈35% early in the summer to ≈55% by late summer. Diptera were the second largest prey group consumed, representing ≈45% of dietary diversity early in the summer. We observed extreme local dietary variability and variation among seasons and years. Based on the species of insects that were consumed, we observed that two locations support prey species with extremely low pollution and acidification tolerances, suggesting that these are areas without environmental contamination. We conclude that there is significant local population variability in little brown bat diet that is likely driven by seasonal and geographical changes in insect diversity, and that this prey may be a good indicator of environment quality.

Authors+Show Affiliations

School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

24274182

Citation

Clare, Elizabeth L., et al. "The Diet of Myotis Lucifugus Across Canada: Assessing Foraging Quality and Diet Variability." Molecular Ecology, vol. 23, no. 15, 2014, pp. 3618-32.
Clare EL, Symondson WO, Broders H, et al. The diet of Myotis lucifugus across Canada: assessing foraging quality and diet variability. Mol Ecol. 2014;23(15):3618-32.
Clare, E. L., Symondson, W. O., Broders, H., Fabianek, F., Fraser, E. E., MacKenzie, A., ... Reimer, J. P. (2014). The diet of Myotis lucifugus across Canada: assessing foraging quality and diet variability. Molecular Ecology, 23(15), pp. 3618-32. doi:10.1111/mec.12542.
Clare EL, et al. The Diet of Myotis Lucifugus Across Canada: Assessing Foraging Quality and Diet Variability. Mol Ecol. 2014;23(15):3618-32. PubMed PMID: 24274182.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The diet of Myotis lucifugus across Canada: assessing foraging quality and diet variability. AU - Clare,Elizabeth L, AU - Symondson,William O C, AU - Broders,Hugh, AU - Fabianek,François, AU - Fraser,Erin E, AU - MacKenzie,Alistair, AU - Boughen,Andrew, AU - Hamilton,Rachel, AU - Willis,Craig K R, AU - Martinez-Nuñez,Felix, AU - Menzies,Allyson K, AU - Norquay,Kaleigh J O, AU - Brigham,Mark, AU - Poissant,Joseph, AU - Rintoul,Jody, AU - Barclay,Robert M R, AU - Reimer,Jesika P, Y1 - 2013/11/26/ PY - 2013/06/29/received PY - 2013/09/11/revised PY - 2013/09/13/accepted PY - 2013/11/27/entrez PY - 2013/11/28/pubmed PY - 2014/10/3/medline KW - molecular diet analysis KW - resource use KW - spatial/temporal variation KW - species' interactions SP - 3618 EP - 32 JF - Molecular ecology JO - Mol. Ecol. VL - 23 IS - 15 N2 - Variation in prey resources influences the diet and behaviour of predators. When prey become limiting, predators may travel farther to find preferred food or adjust to existing local resources. When predators are habitat limited, local resource abundance impacts foraging success. We analysed the diet of Myotis lucifugus (little brown bats) from Nova Scotia (eastern Canada) to the Northwest Territories (north-western Canada). This distribution includes extremes of season length and temperature and encompasses colonies on rural monoculture farms, and in urban and unmodified areas. We recognized nearly 600 distinct species of prey, of which ≈30% could be identified using reference sequence libraries. We found a higher than expected use of lepidopterans, which comprised a range of dietary richness from ≈35% early in the summer to ≈55% by late summer. Diptera were the second largest prey group consumed, representing ≈45% of dietary diversity early in the summer. We observed extreme local dietary variability and variation among seasons and years. Based on the species of insects that were consumed, we observed that two locations support prey species with extremely low pollution and acidification tolerances, suggesting that these are areas without environmental contamination. We conclude that there is significant local population variability in little brown bat diet that is likely driven by seasonal and geographical changes in insect diversity, and that this prey may be a good indicator of environment quality. SN - 1365-294X UR - https://www.unboundmedicine.com/medline/citation/24274182/The_diet_of_Myotis_lucifugus_across_Canada:_assessing_foraging_quality_and_diet_variability_ L2 - https://doi.org/10.1111/mec.12542 DB - PRIME DP - Unbound Medicine ER -