Growth and Survival of Bats

Tuttle, Merlin D.; Stevenson, Diane E.

doi:10.1007/978-1-4613-3421-7_3

Cited by 166 publications

(156 citation statements)

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“…Las zonas ocupadas por estos murcié-lagos poseen condiciones típicas de cuevas de calor, caracterizadas por tener temperaturas de 26-40°C y humedad >90%. Debido a su preferencia por estas condiciones microclimáticas muy a menudo se les ha observado compartiendo los mismos refugios (Silva- Taboada Dichas preferencias son atribuidas a sus limitadas capacidades termorregulatorias (McNab 1982, Bonaccorso et al 1992) y a que favorecen el desarrollo de los embriones y crías (Tuttle & Stevenson 1982, Rodríguez-Durán 1995.…”

Section: Rotundus)unclassified

“…Lo anterior se explica si consideramos que en las zonas tropicales la precipitación pluvial es la variable climática más influyente en la disponibilidad de los recursos alimentarios, los cuales a su vez dictaminan el tiempo en que sucede la reproducción. Los murciélagos tienen en relación a otros mamíferos, un largo periodo reproductivo y en general una cría por año (Tuttle & Stevenson 1982), por lo que los nacimientos deben coincidir con la abundancia del alimento para maximizar su éxito reproductivo. La sincronía de estos eventos es crucial, ya que las hembras reasignan más recursos durante la etapa reproductiva sobre todo en la lactancia, periodo en el que tienen más gasto energético (Speakman & Racey 1987, Kurta et al 1990.…”

Section: Rotundus)unclassified

“…Uno de los más importantes es la temperatura ambiente, ya que puede afectar las tasas metabólicas, la termorregulación e influir en el desarrollo de los embriones y crías. Otro es la humedad relativa, pues combinada con la temperatura ambiental, puede influir en la pérdida de temperatura y humedad corporal (Tuttle & Stevenson 1982, Speakman & Thomas 2003. La variedad de formas y estructuras (estalactitas, cavidades de solución, pasajes, fisuras y otras) en una cueva, al igual que el número y tamaño de sus entradas, originan diferencias microclimáticas en su interior que pueden promover la coexistencia de varias especies (Tuttle & Stevenson 1981, Hill & Smith 1984.…”

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Dinámica poblacional, selección de sitios de percha y patrones reproductivos de algunos murciélagos cavernícolas en el oeste de México

Torres-Flores

López‐Wilchis

Soto-Castruita

2012

RBT

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Population dynamics, roost selection and reproductive patterns of some cave bats from Western of Mexico. Almost half of bat species that occur in Mexico use caves as permanent or temporal roosts. However, the ecological studies about cave bat communities are scarce. In this work we studied the population dynamics, roost selection and reproductive patterns of some bats present in El Salitre Cave, Colima, Mexico. We carried out monthly samplings between August 2003-March 2005 using a harp trap for bats capture, we took their biological data and marked some of them with plastic rings. We also explored the cave to locate bat colonies and register microclimatic conditions in each cave section. We captured a total of 16 409 bats of which 31% were Mormoops megalophylla, 24.5% Pteronotus personatus, 23% P. davyi, 8.2% P. parnellii, 5.8% Natalus mexicanus and 5.3% Glossophaga soricina. Macrotus waterhousii, G. morenoi, Desmodus rotundus, Balantiopteryx plicata, and Glyphonycteris sylvestris represented only 2.2% of the captures. Some bat species used the cave as a permanent day roost while others as a seasonal one, and their population size varied markedly along the year and between rainy and dry seasons. Most bat population peaks were linked with their reproductive periods. The Pteronotus species and N. mexicanus exhibited sexual segregation during the breeding season. The mormoopids and N. mexicanus occupied deeper parts of the cave with temperatures >25.8°C and relative humidity >99%. The phyllostomids occupied intermediate sections where the ambient was less hot and humid, with temperatures of 23.2-28.3°C and humidity of 74-89.9%. Some individuals of B. plicata and G. sylvestris were seen occasionally occupying one chamber near the entrance two, where temperature and humidity were of 23.2°C and 84.2%, respectively. The mormoopids and N. mexicanus showed a pattern of seasonal monoestry, synchronized with rainy season. Glossophaga soricina had a pattern of bimodal seasonal poliestry, with one reproductive peak to early of dry season and another to last of this season. Macrotus waterhousii did not exhibit a seasonal pattern, with parturitions occurring throughout the year. Our results indicate a seasonal replacement between several species as well as seasonal movements to other caves. The data indicate that the carrying capacity of the cave is mainly determined by the availability of roosting sites. The selection of roosting sites is linked to the close relationship between microclimatic conditions and the species physiological characteristics. The reproduction of mormoopids and N. mexicanus was mostly influenced by rainfall which determinates food availability. Rev. Biol. Trop. 60 (3): 1369-1389. Epub 2012 September 01.

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Section: Rotundus)unclassified

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Dinámica poblacional, selección de sitios de percha y patrones reproductivos de algunos murciélagos cavernícolas en el oeste de México

Torres-Flores

López‐Wilchis

Soto-Castruita

2012

RBT

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“…First, despite their small body size, bats lie at the slow end of the 'slow-fast continuum' of life histories (Promislow and Harvey 1990;Barclay and Harder 2003) and are thought to live longer than most similarsized non-flying mammals (Tuttle and Stevenson 1982;Racey and Entwistle 2000). It has been suggested that under this slow life history at low latitudes future reproductive success may be valued more than current reproduction because of postponed senescence and may be protected by the trait of high risk sensitivity (Ricklefs and Wikelski 2002), a concept that is supported by birds (see Silverin et al 1997;Ghalambor and Martin 2001).…”

Section: Introductionmentioning

confidence: 99%

Reproduction elevates the corticosterone stress response in common fruit bats

et al. 2005

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Changes in reproductive state or the environment may affect the sensitivity of the hypothalamicpituitary-andrenal (HPA) axis. However, little is known about the dynamics of the resulting corticosteroid stress response, in particular in tropical mammals. In this study, we address the modulation of corticosterone release in response to different reproductive conditions and seasonality in 326 free-living common fruit-eating bats (Artibeus jamaicensis) on Barro Colorado Island in Panama during dry and wet seasons. We present strong evidence that stress sensitivity is primarily modulated by reproductive condition. In reproductively active females, corticosterone increases were more rapid and reached higher levels, but also decreased significantly faster than in inactive females. The corticosterone response was weaker in reproducing males than in females and delayed compared to non-reproductive males. Testes volume in reproductively active males was negatively correlated with corticosterone concentrations. Our findings suggest differentiated dynamics in the corticosterone stress response between sexes, potentially reflecting conflicting ecological demands. In females, a strong acute corticosterone response may represent high stress-and risk-sensitivity that facilitates escape and thus helps to protect reproduction. In males, suppression during reproductive activity could reflect lowered stress sensitivity to avoid chronically elevated corticosterone levels in times of frequent aggressive and therefore costly inter-male encounters.

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“…Growth and development of bats have been studied during prenatal and postnatal periods (Orr, 1970;Tuttle and Stevenson, 1982;Kunz and Hood, 2000) under both natural (e.g., Kunz, 1973;O'Farrell and Studier, 1973;Buchler, 1980;Hoying and Kunz, 1998;Stern and Kunz, 1998;Baptista et al, 2000) and captive (e.g., Jones, 1967;Kleiman, 1969;Taft and Handley, 1991;Hughes et al, 1995;Rajan and Marimuthu, 1999;Swift, 2001) conditions. Postnatal growth data have been used in studies of energy and mineral accretion (Studier and Kunz, 1995;Papadimitriou et al, 1996), milk composition , ontogeny of flight (Powers et al, 1991;Kunz and Anthony, 1996) and ontogeny of echolocation sounds (Habersetzer and Marimuthu, 1986;Moss et al, 1997).…”

Section: Introductionmentioning

confidence: 99%