Publications

metabolic rates and thermal conductance in four species of neotropical bats roosting in hot caves.	data are presented on metabolic rates and thermal conductance for four species of neotropical bats, pteronotus quadridens, mormoops blainvillii (mormoopidae), monophyllus redmani and erophylla bombifrons (phyllostomidae). each of these bats predominantly or exclusively roosts in hot caves (28-40 degrees c) in puerto rico. basal metabolic rates (bmr) for these four species were 55%, 48%, 66%, and 66% of values expected from the kleiber curve, respectively. thermal conductance was 93%, 55%, 175%, ...	1995	7735903
description of cameronieta torrei dusbabeki (acari: mesostigmata: spinturnicidae), new subspecies with nymphs, parasitizing pteronotus quadridens fuliginosus (chiroptera: mormoopidae) from puerto rico.	we describe a new subspecies, cameronieta torrei dusbabeki, a parasite of pteronotus quadridens fuliginosus (gray 1843) from puerto rico.	2007	17431938
ectoparasitic assemblages on mormoopid bats (chiroptera: mormoopidae) from puerto rico.	we performed the first quantitative survey of ectoparasitic assemblages on three species of mormoopid bats living on the caribbean island of puerto rico: mormoops blainvillii leach (n=40), pteronotus quadridens gundlach (n=40), and pteronotus parnellii gray (n=9). we examined bats for parasites primarily on 8-10 may and 24-27 july 2002 at culebrones cave, near arecibo, puerto rico. only 50% of m. blainvillii were infested with at least one parasite, compared with 85-100% for pteronotus; infested ...	2007	18047193
evolution of neuronal mechanisms for echolocation: specializations for target-range computation in bats of the genus pteronotus.	delay tuning was studied in the auditory cortex of pteronotus quadridens. all the 136 delay-tuned units that were studied responded strongly to heteroharmonic pulse-echo pairs presented at specific delays. in the heteroharmonic pairs, the first sonar call harmonic marks the timing of pulse emission while one of the higher harmonics (second or third) indicates the timing of the echo. delay-tuned units are organized chronotopically along a rostrocaudal axis according to their characteristic delay. ...	2013	23297928
evolution of the heteroharmonic strategy for target-range computation in the echolocation of mormoopidae.	echolocating bats use the time elapsed from biosonar pulse emission to the arrival of echo (defined as echo-delay) to assess target-distance. target-distance is represented in the brain by delay-tuned neurons that are classified as either "heteroharmonic" or "homoharmormic." heteroharmonic neurons respond more strongly to pulse-echo pairs in which the timing of the pulse is given by the fundamental biosonar harmonic while the timing of echoes is provided by one (or several) of the higher order h ...	2013	23781209
blurry topography for precise target-distance computations in the auditory cortex of echolocating bats.	echolocating bats use the time from biosonar pulse emission to the arrival of echo (defined as echo delay) to calculate the space depth of targets. in the dorsal auditory cortex of several species, neurons that encode increasing echo delays are organized rostrocaudally in a topographic arrangement defined as chronotopy. precise chronotopy could be important for precise target-distance computations. here we show that in the cortex of three echolocating bat species (pteronotus quadridens, pteronot ...	2013	24107903
resource partitioning by insectivorous bats in jamaica.	in this investigation, we use variation in wing morphology, echolocation behaviour, patterns of habitat use and molecular diet analysis to demonstrate that six species of sympatric insectivorous bats in jamaica show significant differences that could explain resource partitioning among the species. high-intensity echolocating species that used shorter, broadband signals and had shorter, broader wings (pteronotus macleayii, pteronotus quadridens, mormoops blainvillii) foraged most in edge habitat ...	2014	25187923