Activity Records of the Endangered Paraguaná Moustached Bat, Pteronotus paraguanensis, in the Main Vegetation Types of the Paraguaná Peninsula, Venezuela

摘要: The Paraguana moustached bat, Pteronotus paraguanensis (Mormoopidae), is one of the four species bats endemic to Venezuela. Besides having a geographic distribution restricted Peninsula, it currently classified as Endangered in IUCN Red List Threatened Species. Changes land use, frequent human disturbance at diurnal roosts and poisoning with agro-pesticides from farming operations are some main threats that affect this species. Despite its conservation status pressing need protect feeding areas, habitat use has not been well documented. aim study was record bat's activity using acoustic monitoring identify vegetation types most frequently used throughout year. We recorded echolocation calls over course eight months between 2015 2016, walking transects distributed along representative peninsula. Activity P. differed significantly among types, reaching highest relative thorn woodlands (45%), followed by premontane (20%), disturbed habitats (19%), scrubs (11%), columnar cactus forests (4%). (mean number bat passes/h) comparatively higher (78.17 ± 49.82 SD) than other units (range: 4.39 5.71 SD – 15.51 16.11 where detected. This result indicative mainly associated forest habitats; however, can also be present lower frequency lands. Our call recordings help confirm Peninsula's isthmus represents an ecological barrier precludes dispersion mainland. Based on our findings, we highlight focus actions for protection remnant patches still