| reproductive patterns and feeding habits of three nectarivorous bats (phyllostomidae: glossophaginae) from the brazilian cerrado. | the reproductive patterns and feeding habits of three sympatric nectarivorous bats, glossophaga soricina, anoura caudifera, and a. geoffroyi were studied in the pousada das araras natural reserve, located in central brazil. the bats were captured with mist nets from august 2000 to july 2001. reproductive condition was determined by external analyses of the specimens and feeding habits from fecal samples. glossophaga soricina was the most abundant species (65%), followed by a. geoffroyi (30%) and ... | 2003 | 12914427 |
| bat flies (diptera: streblidae, nycteribiidae) parasitic on bats (mammalia: chiroptera) at parque estadual da cantareira, são paulo, brazil: parasitism rates and host-parasite associations. | a total of 443 bat flies belonging to the families nycteribiidae and strelidae, were collected on 22 species of bats (molossidae, phyllostomidae, and vespertilionidae) from parque estadual da cantareira (são paulo, brazil), between january, 2000 and january, 2001. eighteen new occurrences of bat flies were recorded on anoura geoffroyi (anastrebla caudiferae), glossophaga soricina (a. caudiferae), sturnira lilium (trichobius phyllostomae, t. furmani, and paraeuctenodes similis), artibeus lituratu ... | 2005 | 15867959 |
| influence of feeding habits in the endocrine pancreas of insectivore bat pteronotus personatus and nectarivore bat anoura geoffroyi: a comparative stereological and immunohistochemical study. | pteronotus personatus as an insectivore bat and has a diet that consists of a high protein diet, whereas the diet of anoura geoffroyi, a predominantly nectarivore bat, is rich in simple sugars like sucrose, glucose and fructose. considering that diet influences the activation of different pathways, which may influence morphological adaptations in the gastrointestinal system, the aim of this study was to compare the morphology of the endocrine pancreas in p. personatus and a. geoffroyi. for this, ... | 2017 | 28109546 |
| ectoparasitic flies (diptera, streblidae) of bats (chiroptera, phyllostomidae) in an atlantic forest area, southeastern brazil. | we studied infestation rates and parasite-host associations between streblid flies and phyllostomid bats in an atlantic forest area of rio de janeiro state, southeastern brazil. we captured 301 individuals from seven phyllostomidae bat species. out of that total, 69 bats had been parasitised by nine streblidae species; the most frequent species were trichobius joblingi and trichobius tiptoni. the species paraeuctenodes longipes, associated with anoura geoffroyi, was the most frequent species. th ... | 2013 | 24789402 |
| first record of bat-pollination in the species-rich genus tillandsia (bromeliaceae). | bromeliaceae is a species-rich neotropical plant family that uses a variety of pollinators, principally vertebrates. tillandsia is the most diverse genus, and includes more than one-third of all bromeliad species. within this genus, the majority of species rely on diurnal pollination by hummingbirds; however, the flowers of some tillandsia species show some characteristics typical for pollination by nocturnal animals, particularly bats and moths. in this study an examination is made of the flora ... | 2014 | 24651370 |
| bat flies (diptera: streblidae, nycteribiidae) and mites (acari) associated with bats (mammalia: chiroptera) in a high-altitude region in southern minas gerais, brazil. | a total of 71 bat flies belonging to families nycteribiidae and streblidae, and 37 mites were collected on 12 species of bats (phyllostomidae and vespertilionidae) from the chapada do abanador (minas gerais, brazil), between july 2009 and april 2010. two new occurrences of ectoparasites were recorded on histiotus velatus (bat fly basilia producta) and on carollia perspicillata (mite parichoronyssus bakeri). five new occurrences were recorded for the state of minas gerais, increasing the range fo ... | 2013 | 24338319 |
| distributions of the endocrine cells in the gastrointestinal tract of nectarivorous and sanguivorous bats: a comparative immunocytochemical study. | the present study was conducted to clarify the influence of feeding habits on regional distribution and relative frequency of endocrine cells secreting cholecystokinin (cck), gastrin (gas), serotonin (5-ht) and enteroglucagon (gluc) in the nectarivorous anoura geoffroyi and glossophaga soricina and the sanguivorous desmodus rotundus bats of the phyllostomidae family, by specific immunohistochemical methods. the regional distribution and frequency of the different types of endocrine cells varied ... | 2009 | 19135221 |
| review of external morphology of chirorhynchobiidae (acari: sarcoptoidea) with description of a new species. | two species of chirorhynchobiidae, chirorhynchobia glossophaga sp. n. and chirorhynchobia matsoni yunker, 1970 are described and redescribed, respectively. the male of c. glossophaga and the tritonymph of c. matsoni are the first to be described in the family. the mites are ectoparasites living on the wing membrane of phyllostomid bats glossophaga soricina (pallas) from peru and anoura geoffroyi gray from several localities. females of the new species differ from those of c. matsoni by the short ... | 2008 | 18402134 |
| light microscopic and ultrastructural observations on the vomeronasal organ of anoura (chiroptera: phyllostomidae). | the vomeronasal organ (vno) is known to be present in bats of the family phyllostomidae, but in most species this is inferred from the presence of accessory olfactory bulbs. like primates, bats have profound intergroup variations in the vomeronasal system. of the family phyllostomidae (49 genera, 143 species) the vno of approximately 60 species has been studied. here, we report light microscopic observations of the vno of anoura geoffroyi (fetus and adult), a. caudifer, and a. cultrata, as well ... | 2007 | 17929290 |
| melatonin rhythms and pineal structure in a tropical bat, anoura geoffroyi, that does not use photoperiod to regulate seasonal reproduction. | it has been hypothesized that pineal structure and function might differ between temperate zone and tropical species of mammals because of lower amplitudes of seasonal change in photoperiod and, in some areas, less seasonal climatic variation. anoura geoffroyi produce a single offspring in november or december of each year on the caribbean island of trinidad, at 10 degrees n latitude in the deep tropics. previous work has shown that this population lacks reproductive responses to photoperiod, an ... | 1996 | 8815193 |
| an endogenous circannual rhythm of reproduction in a tropical bat, anoura geoffroyi, is not entrained by photoperiod. | most species of mammals live in the tropics, and many breed seasonally, but little is known about the regulation of their seasonal cycles. males of a tropical bat, anoura geoffroyi (order chiroptera, family phyllostomidae), from 10 degrees latitude in trinidad, were studied to test the role of photoperiod in regulating seasonal reproduction in the deep tropics. groups of males were subjected to five treatments: 1) constant photoperiod; 2) a 12-mo cycle of civil twilight photoperiods mimicking th ... | 1994 | 8167232 |
| seasonal reproduction of a tropical bat, anoura geoffroyi, in relation to photoperiod. | anoura geoffroyi (chiroptera, phyllostomidae, glossophaginae), geoffroy's hairy-legged long-tongued bat, were collected from september 1984 to august 1985, and these bats were found to breed seasonally in the wild on trinidad, west indies, at 10 degrees n latitude. histological examination of these samples indicated that females became pregnant in july or august, and young were born in late november or early december. the testes and epididymides were small from september to mid-april, increased ... | 1992 | 1339856 |
| new geographical records of bat flies (diptera: streblidae) associated with phyllostomid bats (chiroptera: phyllostomidae) in the west highlands of mexico. | streblidae are ectoparasites exclusive to bats and feed only on their blood. studies on ectoparasite fauna have increased our ecological knowledge of the parasitic relationship between streblids and their bat hosts. we evaluate assemblages of phyllostomid bats and their ectoparasitic flies in three scenarios with different types of anthropogenic use: pine-oak forest, avocado orchards, and an urban park during an annual cycle in the highlands of michoacan, mexico. we recorded a total of 325 bats ... | 2019 | 30247709 |
| bromeliads going batty: pollinator partitioning among sympatric chiropterophilous bromeliaceae. | pollinators can be a limited resource and natural selection should favour differences in phenotypic characteristics to reduce competition among plants. bats are important pollinators of many neotropical plants, including the bromeliaceae; however, the pre-pollination mechanisms for isolation among sympatric bat-pollinated bromeliads are unknown. here, we studied the mechanisms for reproductive segregation between pitcairnia recurvata, pseudalcantarea viridiflora, werauhia noctiflorens and w. nut ... | 2019 | 31186827 |
| monunguis streblida (neothrombidiidae) in brazil and its parasitic relationships with dipteran ectoparasites (anastrebla and trichobius) of bats. | the mite species monunguis streblida wharton, 1938 (neothrombidiidae) is reported in association with dipteran ectoparasites (streblidae) of brazilian bats for the first time. a 1-year study of two populations of the bat anoura geoffroyi gray, 1838 in caves in the state of minas gerais, brazil, found them to be parasitized by four species of streblids, three of which were parasitized by m. streblida. three hundred and thirty-two individuals of m. streblida were collected in association with 135 ... | 2019 | 31267244 |