Seasonal circadian rhythm shift and lunar chronobiology of the nine-banded armadillo (Dasypus novemcinctus)
| Autor: | Dana M. Green, Lynn W. Robbins, Eric N. Green, Sean P. Maher |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Chronobiology animal structures integumentary system biology Ecology 05 social sciences Insectivore Nocturnal Thermoregulation biology.organism_classification 010603 evolutionary biology 01 natural sciences Dasypus novemcinctus Crepuscular biology.animal embryonic structures Armadillo 0501 psychology and cognitive sciences 050102 behavioral science & comparative psychology Circadian rhythm Ecology Evolution Behavior and Systematics |
| Zdroj: | The Southwestern Naturalist. 61:251-256 |
| ISSN: | 1943-6262 0038-4909 |
| Popis: | Nine-banded armadillos (Dasypus novemcinctus) are nocturnal, semifossorial, insectivorous mammals that historically live in warm climates but have been moving northward over the past 150+ y. As armadillos move into more-temperate climates, behavioral adjustments occur in response to decreasing temperatures. Observations in northern latitudes have noted more activity during the daytime in the winter, indicating a shift in circadian rhythm. Such behavioral plasticity may allow individuals to forage when temperatures are optimal for thermoregulation. We recorded armadillo activity for 6 mo using game cameras. We created nocturnal, crepuscular, and diurnal activity indices and then plotted them as a function of time. We compared temperatures of when armadillos were photographed to temperatures when other animals were photographed. Analyses suggest that a seasonal shift in circadian rhythm does occur and that air temperature is an important factor. Although armadillos have previously been reported to ... |
| Databáze: | OpenAIRE |
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