do you hear what i see? vocalization relative to visual detection rates of hawaiian hoary bats (lasiurus cinereus semotus).bats vocalize during flight as part of the sensory modality called echolocation, but very little is known about whether flying bats consistently call. occasional vocal silence during flight when bats approach prey or conspecifics has been documented for relatively few species and situations. bats flying alone in clutter-free airspace are not known to forgo vocalization, yet prior observations suggested possible silent behavior in certain, unexpected situations. determining when, why, and where s ...201728904749
multi-state occupancy models of foraging habitat use by the hawaiian hoary bat (lasiurus cinereus semotus).multi-state occupancy modeling can often improve assessments of habitat use and site quality when animal activity or behavior data are available. we examine the use of the approach for evaluating foraging habitat suitability of the endangered hawaiian hoary bat (lasiurus cinereus semotus) from classifications of site occupancy based on flight activity levels and feeding behavior. in addition, we used data from separate visual and auditory sources, namely thermal videography and acoustic (echoloc ...201830379835
two tickets to paradise: multiple dispersal events in the founding of hoary bat populations in hawai'i.the hawaiian islands are an extremely isolated oceanic archipelago, and their fauna has long served as models of dispersal in island biogeography. while molecular data have recently been applied to investigate the timing and origin of dispersal events for several animal groups including birds, insects, and snails, these questions have been largely unaddressed in hawai'i's only native terrestrial mammal, the hawaiian hoary bat, lasiurus cinereus semotus. here, we use molecular data to test the hy ...201526083029
auditory sensitivity of hawaiian moths (lepidoptera: noctuidae) and selective predation by the hawaiian hoary bat (chiroptera: lasiurus cinereus semotus).the islands of hawai'i offer a unique opportunity for studying the auditory ecology of moths and bats since this habitat has a single species of bat, the hawaiian hoary bat (lasiurus cinereus semotus), which exerts the entire predatory selection pressure on the ears of sympatric moths. i compared the moth wings discarded by foraging bats with the number of surviving moths on the island of kaua'i and concluded that the endemic noctuid haliophyle euclidias is more heavily preyed upon than similar- ...200111429137
potential citric acid exposure and toxicity to hawaiian hoary bats (lasiurus cinereus semotus) associated with eleutherodactylus frog control.we examined potential exposure of hawaiian hoary bats (lasiurus cinereus semotus) to citric acid, a minimum risk pesticide registered for control of invasive eleutherodactylus frog populations. hoary bats are nocturnal insectivores that roost solitarily in foliage, federally listed as endangered, and are endemic to hawaii. oral ingestion during grooming of contaminated fur appears to be the principal route by which these bats might be exposed to citric acid. we made assessments of oral toxicity, ...201424526591
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