PHOTO CAPTION-A big brown bat, Eptesicus fuscus
, flying in the University of Maryland's Auditory Neuroethology laboratory.
with big brown bats, Eptesicus fuscus
(David Richardson and Ches Smith, pers.
Barclay analyzed long-term data on the variation in offspring sex-ratio of the big brown bat, Eptesicus fuscus
, a common North-American species that consumes insects.
Sonar gain control and echo detection thresholds in the echolocating bat, Eptesicus fuscus
We confirmed identities of an adult male Myotis austroriparius Rhoads (Southeastern myotis) and an adult male Eptesicus fuscus
Beauvois (Big brown bat) by hand capture, and we identified a Tadarida brasiliensis Geoffroy (Brazilian free-tailed bat) visually.
min/max mean (SE) median Calls Eptesicus fuscus
27 ND/12 2.
Keywords: big brown bats, echolocation, Eptesicus fuscus
, sex differences
Differential exploitation of moths by the bats Eptesicus fuscus
and Lasiurus cinereus.
rattlesnake -- 1 -- MAMMALIA CHIROPTERA Verspertilionidae Antrolozous pallidtes, pallid bat x -- -- Corynorthinus townsendii, Townsend's big-ear bat x -- -- Eptesicus fuscus
, big brown bat x -- -- Enderma maculatum, spotted bat x -- -- Lasionycteris noctivagans, silver-haired bat x -- -- Lasiuraes blossevillii, western red bat x -- -- L.
Laboratory tests conducted by Kazial and her colleagues suggest that females of Eptesicus fuscus
or big brown bat, a species that ranges from southern Canada to northernmost South America, can recognize the sex of another adult of its species by listening to its ultrasonic chirps.
The bat species studied include Pipistrellus subflavus and Eptesicus fuscus
big brown bats, Eptesicus fuscus
, find the adult stage of these beetles quite tasty.