Facultative Nectar-Feeding Behavior in a Gleaning Insectivorous Bat (Antrozous pallidus)
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چکیده
منابع مشابه
Facultative Nectar-feeding Behavior in a Gleaning Insectivorous Bat (antrozous Pallidus)
Foraging plasticity that includes facultative nectarivory is extremely rare in temperate insectivorous bats. We investigated flower-visiting behavior of pallid bats (Antrozous pallidus, Vespertilionidae) to bat-adapted flowers of cardon cacti (Pachycereus pringlei) to determine whether pallid bats consume floral nectar or visit flowers to opportunistically glean insects attracted to flowers. In...
متن کاملMatched Behavioral and Neural Adaptations for Low Sound Level Echolocation in a Gleaning Bat, Antrozous pallidus
In active sensing, animals make motor adjustments to match sensory inputs to specialized neural circuitry. Here, we describe an active sensing system for sound level processing. The pallid bat uses downward frequency-modulated (FM) sweeps as echolocation calls for general orientation and obstacle avoidance. The bat's auditory cortex contains a region selective for these FM sweeps (FM sweep-sele...
متن کاملParallel thalamocortical pathways for echolocation and passive sound localization in a gleaning bat, Antrozous pallidus.
We present evidence for parallel auditory thalamocortical pathways that serve two different behaviors. The pallid bat listens for prey-generated noise (5-35 kHz) to localize prey, while reserving echolocation [downward frequency-modulated (FM) sweeps, 60-30 kHz] for obstacle avoidance. Its auditory cortex contains a tonotopic map representing frequencies from 6 to 70 kHz. The high-frequency (BF...
متن کاملAn Observation of Apparent Teaching Behavior in the Pallid Bat, Antrozous pallidus
—During a laboratory study of pallid bat (Antrozous pallidus) hunting behavior, we observed an interaction wherein an adult female appeared to aid a juvenile male in learning a novel foraging task. This single observation adheres to the 3 requirements of teaching outlined by Caro and Hauser (1992). A female bat experienced with a hunting task modified her behavior in the presence of a naïve obs...
متن کاملInsectivorous bat pollinates columnar cactus more effectively per visit than specialized nectar bat.
Plant-pollinator interactions are great model systems to investigate mutualistic relationships. We compared pollinator effectiveness between facultative and obligate nectar-feeding bats to determine how foraging specialization influences mutualistic interactions in a bat-adapted cactus. We predicted that a specialized nectarivorous bat would deliver more pollen than an opportunistic nectar-feed...
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ژورنال
عنوان ژورنال: Journal of Mammalogy
سال: 2009
ISSN: 0022-2372,1545-1542
DOI: 10.1644/09-mamm-a-001.1