Capacidade reprodutiva de Bothrops jararaca (Serpentes, Viperidae)
نویسندگان
چکیده
منابع مشابه
Sexual dimorphism in venom of Bothrops jararaca(Serpentes: Viperidae).
Bothrops jararaca is an abundant snake in Brazil, and its venom has been studied exhaustively. The species exhibits adult size dimorphism in which female are larger. We registered the growth in Snout-Vent Length and weight of one litter (with 11 females and 12 males). We compared growth curves and venom profile between male and female of B. jararaca in order to establish the relationship of tho...
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Snakes that can ingest prey that are proportionally large have high metabolic rates during digestion. This great increase in metabolic rate (specific dynamic action – SDA) may create a significant augment in the animal’s body temperature. The present study investigated postprandial thermogenesis in Bothrops moojeni. Briefly, two groups of snakes were fed meals equivalent to 17 ± 3% and 32 ± 5% ...
متن کاملPhylogeography of the Central American lancehead Bothrops asper (SERPENTES: VIPERIDAE)
The uplift and final connection of the Central American land bridge is considered the major event that allowed biotic exchange between vertebrate lineages of northern and southern origin in the New World. However, given the complex tectonics that shaped Middle America, there is still substantial controversy over details of this geographical reconnection, and its role in determining biogeographi...
متن کاملPhylogeography of the Bothrops jararaca complex (Serpentes: Viperidae): past fragmentation and island colonization in the Brazilian Atlantic Forest.
The Brazilian Atlantic Forest is one of the world's major biodiversity hotspots and is threatened by a severe habitat loss. Yet little is known about the processes that originated its remarkable richness of endemic species. Here we present results of a large-scale survey of the genetic variation at the mitochondrial cytochrome b gene of the pitviper, jararaca lancehead (Bothrops jararaca), and ...
متن کاملINTRASPECIFIC VARIATION OF Bothrops pubescens (COPE, 1869) VENOM IN URUGUAY (SERPENTES: VIPERIDAE)
In Uruguay, there was no information about the variations degree in Bothrops pubescens venoms until the present work, in which we investigated intraspecific venom variation using polyacrylamide gel electrophoresis (SDS-PAGE). We found some differences in the venom protein profile; however, they were not related to the parameters studied (geographic distribution, weight, sex, and captivity time)...
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ژورنال
عنوان ژورنال: Iheringia. Série Zoologia
سال: 2004
ISSN: 0073-4721
DOI: 10.1590/s0073-47212004000400013