Reproductive pattern of <i>Leptonycteris curasoae </i>Miller (Chiroptera : Phyllostomidae) in northern Venezuala

Martino, Angela; Arends, Anabel; Aranguren, José Olavarría

doi:10.1515/mamm.1998.62.1.69

Cited by 20 publications

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“…Gutiérrez and J. Molinari, in litt.). Other species of bats also roost at these caves, including P. davyi, Mormoops megalophylla, Natalus tumidirostris, and Leptonycteris curasoae (Martino et al 1997(Martino et al , 1998Molinari et al 2005). These caves are located near towns and are easily accessible to local inhabitants (SVE 1972(SVE , 1973a(SVE , 1973b.…”

Section: Discussionmentioning

confidence: 99%

Morphometrics and Taxonomy of Bats of the Genus Pteronotus (Subgenus Phyllodia) in Venezuela

Gutiérrez

Molinari

2008

Journal of Mammalogy

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Section: Discussionmentioning

confidence: 99%

Morphometrics and Taxonomy of Bats of the Genus Pteronotus (Subgenus Phyllodia) in Venezuela

Gutiérrez

Molinari

2008

Journal of Mammalogy

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“…In June, testes were scrotal and their length increased significantly, suggesting the beginning of mating. Gestation period in L. curmoae has been estimated as five to six months (Cebdos et al 1997, Martino et al 1997, Fleming & Nassar 2002 and the first lactating females in Tzinacanostoc were found five months after the first bats with enlarged testicles were found. Testicle length peaked in July, suggesting maximum mating activity (almost all females found five months later were lactating).…”

Section: Discussionmentioning

confidence: 99%

Population Dynamics of a Resident Colony ofLeptonycteris curasoae(Chiroptera: Phyllostomidae) in Central México

Quijano

2004

Biotropica

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We studied the population dynamics of the lesser long-nosed bat Leptonycteris curasoae in a cave in central Mexico for a two-year time. The population had substantial seasonal changes in size and composition during this time. Colony size was largest from February to July (22,000 adults) and contained equal numbers of males and females. In June and July, males had enlarged testes and presumably mated with females. In August, the population size began to decline and was mostly composed of pregnant females. Between September and December, the colony was composed exclusively of pregnant and lactating females and their young, and population size decreased to about one-third of the observed maximum size. In January, adult males returned to the roost and the population size increased. We also observed an increase in body mass and fat accumulation in both sexes, apparently related to reproductive activity. This is the first report of the continuous presence of a substantial female population of L. curusoae throughout the year in a single roost in Mexican tropics, indicating that some populations of L. curasoae in central Mexico complete their life cycle without having to migrate. RESUMENSe estudi6 la dinimica poblacional del murciklago nectarivoro Leptonycteris curusoae en una cueva localizada en el centro de MCxico durante dos afios. La poblacibn present6 cambios sustanciales en su tamafio y composicibn durante este periodo. El tamafio mis grande de la poblaci6n se registr6 entre febrero y julio (22,000-27,000 individuos) con una proporci6n similar de hembras y machos. En junio y julio 10s testiculos de 10s machos crecieron y aparentemente se aparearon con las hembras. En agosto, la poblacibn empez6 a disminuir y se encontraron casi exclusivamente hembras preiiadaz. Entre septiembre y diciembre, la colonia estuvo compuesta exclusivamente de hembras preiiadaz o lactantes y de sus crias. La poblaci6n disminuy6 en este periodo hasta equivaler a una tercera parte del tamaiio miximo registrado en el aiio. En enero, la poblaci6n empezo a crecer de nuevo con la incorporacibn de machos adultos. Durante el afio, en ambos sexos se observaron tambiCn cambios en la masa corporal y en la acumulaci6n de grasa aparentemente relacionados con la actividad reproductiva. Este es el primer estudio que reporta la presencia continua de hembras en una colonia de L. curasoae en la misma cueva durante todo el ~o para el centro de M6xico.Nuestros resultados indican que esta poblacibn no es migratoria a diferencia de otras poblaciones de esta especie.

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“…However, this was not the situation during the Late Pleistocene (13 000-18 000 yr BP), when the Caribbean Sea was substantially lower and an extensive land bridge connected the Paraguaná Peninsula with continental Venezuela (Ochsenius, 1983). Contemporary gene flow between the Paraguaná Peninsula and adjacent mainland is possible, because nectarfeeding bats that pollinate and disperse columnar cacti in Venezuela and roost in the peninsula have been shown to fly across the isthmus towards the mainland (Martino et al, 1998). It is feasible that during these long-distance flights, bats could transport viable cactus pollen and seeds between the two regions.…”

Section: Discussionmentioning

confidence: 99%

Population genetic structure of Venezuelan chiropterophilous columnar cacti (Cactaceae)

Nassar

Hamrick

Fleming

2003

American J of Botany

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We conducted allozyme surveys of three Venezuelan self-incompatible chiropterophilous columnar cacti: two diploid species, Stenocereus griseus and Cereus repandus, and one tetraploid, Pilosocereus lanuginosus. The three cacti are pollinated by bats, and both bats and birds disperse seeds. Population sampling comprised two spatial scales: all Venezuelan arid zones (macrogeographic) and two arid regions in northwestern Venezuela (regional). Ten to 15 populations and 17-23 loci were analyzed per species. Estimates of genetic diversity were compared with those of other allozyme surveys in the Cactaceae to examine how bat-mediated gene dispersal affects the population genetic attributes of the three cacti. Genetic diversity was high for both diploid (P(s) = 94.1-100, P(p) = 56.7-72.3, H(s) = 0.182-0.242, H(p) = 0.161-0.205) and tetraploid (P(s) = 93.1, P(p) = 76.1, H(s) = 0.274, H(p) = 0.253) species. Within-population heterozygote deficit was detected in the three cacti at macrogeographic (F(IS) = 0.145-0.182) and regional (F(IS) = 0.057-0.174) levels. Low genetic differentiation was detected at both macrogeographic (G(ST) = 0.043-0.126) and regional (G(ST) = 0.009-0.061) levels for the three species, suggesting substantial gene flow among populations. Gene exchange among populations seems to be regulated by distance among populations. Our results support the hypothesis that bat-mediated gene dispersal confers high levels of genetic exchange among populations of the three columnar cacti, a process that enhances levels of genetic diversity within their populations.

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Reproductive pattern of Leptonycteris curasoae Miller (Chiroptera : Phyllostomidae) in northern Venezuala

Cited by 20 publications

References 0 publications

Morphometrics and Taxonomy of Bats of the Genus Pteronotus (Subgenus Phyllodia) in Venezuela

Morphometrics and Taxonomy of Bats of the Genus Pteronotus (Subgenus Phyllodia) in Venezuela

Population Dynamics of a Resident Colony ofLeptonycteris curasoae(Chiroptera: Phyllostomidae) in Central México

Population genetic structure of Venezuelan chiropterophilous columnar cacti (Cactaceae)

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