Spatiotemporal and demographic variation in the diet of New Zealand lesser short-tailed bats (Mystacina tuberculata )

Ecology and Evolution
Zenon J CzenzeStuart Parsons

Abstract

Variation in the diet of generalist insectivores can be affected by site-specific traits including weather, habitat, and season, as well as demographic traits such as reproductive status and age. We used molecular methods to compare diets of three distinct New Zealand populations of lesser short-tailed bats, Mystacina tuberculata. Summer diets were compared between a southern cold-temperate (Eglinton) and a northern population (Puroera). Winter diets were compared between Pureora and a subtropical offshore island population (Hauturu). This also permitted seasonal diet comparisons within the Pureora population. Lepidoptera and Diptera accounted for >80% of MOTUs identified from fecal matter at each site/season. The proportion of orders represented within prey and the Simpson diversity index, differed between sites and seasons within the Pureora population. For the Pureora population, the value of the Simpson diversity index was higher in summer than winter and was higher in Pureora compared to Eglinton. Summer Eglinton samples revealed that juvenile diets appeared to be more diverse than other demographic groups. Lactating females had the lowest dietary diversity during summer in Pureora. In Hauturu, we found a significant negat...Continue Reading

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Citations

Nov 15, 2018·Molecular Ecology·Elizabeth L ClareM Brock Fenton
Oct 3, 2020·Ecology and Evolution·Devon R O'RourkeJeffrey T Foster
Dec 4, 2020·Environmental Entomology·Anna F ProbertMargaret C Stanley
Aug 27, 2021·Molecular Ecology·David R Hemprich-BennettElizabeth L Clare

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Methods Mentioned

BETA
PCR
Assay

Software Mentioned

QIIME
EcoSim
BLAST
lme4
PAST
R
MuMIn
nlme
Galaxy
R Development Core Team

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