Thermal Ecology of Moustached and Ghost-Faced Bats (Mormoopidae) in Venezuela

Abstract

The moustached bats, Pteronotus davyi, P. personatus, and P. parnellii, and bat, Mormoops megalophylla (Mormoopidae), are homeotherms with normal basal rates of metabolism for mammals of their body mass. They are temperatures below 15TC for long, and none of the four species studied appe torpor. Thermal conductance of each species is high compared to expected v mals, but within the upper range of available values for bats. Except in P. p females have lower basal rates of metabolism than conspecific males. We h this sexual difference in basal rate of metabolism is related to the different ther at roost sites for each sex and that roost temperature is an important select evolution of thermoregulatory patterns and basal rate of metabolism in bat

Low metabolism in a tropical bat from lowland Panama measured using heart rate telemetry: an unexpected life in the slow lane

“…(Audet and Thomas, 1996;Turbill et al, 2003). In our study we were expecting to find high DEE values because as a tropical species, living near the equator at relatively consistent high ambient temperatures, M. molossus should be limited in its ability to use torpor, unlike bats from regions with stronger seasonal and daily temperature fluctuations (Bonaccorso et al, 1992;Cory Toussaint et al, 2010;Speakman and Thomas, 2003).…”

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

“…La proporción de sexos indica que no exhibe segregación sexual en la cueva. En otras localidades se ha observado colonias de machos y/o hembras no reproductivas refugiándose en cuevas distintas a las utilizadas por las colonias de maternidad (Bonaccorso et al 1992, Boada et al 2003, retornando al final del periodo de crianza (Quijano 2004). Con base en lo anterior, es probable que los machos y hembras que abandonan la cueva El Salitre, se refugien en sitios separados durante la época reproductiva.…”

“…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.…”

Bat assemblages in conservation areas of a metropolitan region in Southeastern Brazil, including an important karst habitat

“…These shelters provide greater microclimate stability compared with cavities in trees for example, and such stability is important for thermoregulation and development of infant bats (Bonaccorso et al, 1992;Vonhof and Barclay, 1996;Rodriguez-Durán and Soto-Centeno, 2003). In spite of this critical role that such shelters play in the lives of bats, knowledge on bats inhabiting caves in Brazil can be found in only a few studies (Trajano, 1985(Trajano, , 1995Trajano and Moreira, 1991;Bredt et al, 1999;Trajano and Gimenez, 1998;Esbérard et al, 2005;Faria et al, 2006;Costa et al, 2010).…”

“…In karst areas, isolated karst outcrops have a great many potential shelters and may influence the local species richness of bats (Struebig et al, 2009), and the knowledge of species richness is the basis for any conservation strategy (Racey and Entwistle, 2005;Bernard et al, 2011). In the present study, we aimed to investigate the species richness and abundance of bats in an area in the Carste de Lagoa Santa, Minas Gerais, which is a karst area and has a large number of rock shelters (caves and crevices) potentially available to bats.…”