| genetic population structure and mobility of two nectar-feeding bats from venezuelan deserts: inferences from mitochondrial dna. | glossophaga longirostris and leptonycteris curasoae are nectar-feeding bats associated with arid zones in northern south america. despite their close phylogenetic relationship, sympatric condition and niche similarities, morphological and ecological evidence suggest that these species differ in dispersal capabilities. using mitochondrial dna, we tested the hypothesis that these species exhibit different levels of population structure that are congruent with their particular movement capabilities ... | 2003 | 14629399 |
| [digestibility of columnar cacti pollen grains in the glosophagine bats glossophaga longirostris and leptonycteris curasoae (chiroptera: phyllostomidae)]. | we examined the protoplasmic assimilation of columnar cacti pollen grains in two species of venezuelan desert glosophagine bats, glossophaga longirostris and leptonycteris curasoae, by determining the amount of empty (digested) pollen grains found in their fecal samples. to determine the amount of empty pollen grains, the fecal samples were stained to differ between empty and full (non-digested) pollen grains. the number of empty and full pollen grains observed in the fecal samples were correcte ... | 2005 | 17354440 |
| comparative pollination biology of venezuelan columnar cacti and the role of nectar-feeding bats in their sexual reproduction. | the floral biology, reproductive system, and visitation behavior of pollinators of four species of columnar cacti, stenocereus griseus, pilosocereus moritzianus, subpilocereus repandus, and subpilocereus horrispinus, were studied in two arid zones in the north of venezuela. our results support the hypothesis that venezuelan species of columnar cacti have evolved toward specialization on bat pollination. additional information on the floral biology of a fifth species, pilosocereus lanuginosus, wa ... | 1997 | 21708646 |
| intraspecific scaling of flight power in the bat glossophaga soricina (phyllostomidae). | aerodynamic theory predicts that power output during flight should vary with body mass by an exponent of 1.56 when wing morphology remains constant (within an individual), and by an exponent of 1.19 when wing morphology changes with body mass (within a species or between species). i tested these predictions by estimating the power input during horizontal flight in three pregnant and two subadult glossophaga soricina using a multivariate regression model. this analysis yielded power input during ... | 2000 | 11083523 |
| natural exposure of bats in grenada to rabies virus. | introduction: grenada is a rabies endemic country, where terrestrial rabies is maintained in the small indian mongoose (herpestes auropunctatus). the role of bats in the epidemiology of rabies in grenada is unknown. a 1974 report described one rabies virus positive jamaican fruit bat (artibeus jamaicensis), and a high seroprevalence in this species. in the current study, the natural exposure to rabies virus in grenadian bats was re-evaluated. it is postulated that bats serve as a natural rabies ... | 2017 | 28804595 |