Food habits of Nyctinomops macrotis at a maternity roost in New Mexico, as indicated by analysis of guano

Southwestern Naturalist
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Abstract

We examined 56 fecal pellets from under a maternity colony of big free-tailed bats (Nyctinomops macrotis) in the Jemez Mountains of northern New Mexico. The most important food items, listed in order of decreasing percent volume, were Cicadellidae, leafhoppers (26.7% volume, 58.9% frequency); Ichneumonidae, Ichneumon wasps (19.3% volume, 35.7% frequency); and Lepidoptera, moths (17.2% volume, 82.1% frequency). Overall, the most important orders as prey consumed, listed by decreasing percent volume, were Homoptera (27.6% volume, 62.5% frequency), Hymenoptera (19.5% volume, 37.5% frequency), Lepidoptera (17.2% volume, 82.1% frequency), Hemiptera (11.7% volume, 37.5% frequency), and Diptera (10.6% volume, 50.0% frequency). Our study documents an unusually varied diet, as previous studies indicated that these bats fed almost exclusively on moths.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Food habits of Nyctinomops macrotis at a maternity roost in New Mexico, as indicated by analysis of guano
Series title Southwestern Naturalist
DOI 10.1894/0038-4909(2003)048<0132:FHONMA>2.0.CO;2
Volume 48
Issue 1
Year Published 2003
Language English
Publisher Southwestern Association of Naturalists
Contributing office(s) Fort Collins Science Center
Description 4 p.
First page 132
Last page 135
Country United States
State New Mexico
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