Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/38915
Título: Temperature variation in nests of Paleosuchus palpebrosus (Crocodylia: Alligatoridae) near the southern edge of the species´ range, Brazil
Título(s) alternativo(s): Variação da temperatura nos ninhos de Paleosuchus palpebrosus (Crocodylia: Alligatoridae) próximo ao limite sul da área de distribuição da espécie, Brasil
Autor: Campos, Zilca
Magnusson, William Ernest
Marques, Vanílio
Palavras-chave: Clutch size
Cuvier´s dwarf caiman
Incubation period
Nest temperature
Data do documento: 2022
Revista: Brazilian Journal of Biology
É parte de: Volume 82
Abstract: We monitored the temperature of seven Paleosuchus palpebrosus nests found on the banks of streams surrounding the Brazilian Pantanal, near the southern limit of the species´ distribution, between 2008 and 2013. The mean temperature of the nests between 45 and 68 days incubation, the presumed period of sex determination, varied between 26.1 and 31.5o C. Nest temperatures were 2 to 5°C higher than air temperatures, presumably due to metabolic heat of decay of material within the nests, but air temperature explained 10–50% of the variance in egg-chamber temperatures. The estimated incubation periods for nests from which eggs hatched were 80, 84, 86, 90 and 104 days with a mean of 89 (SD =9.23) days, though these are probably slight overestimates because eggs may have hatched in the period between inspections. For these nests, there was no significant relationship between mean temperature and incubation period (r2 = 0.23, p = 0.411).
ISSN: 15196984
DOI: 10.1590/1519-6984.266315
Aparece nas coleções:Artigos

Arquivos associados a este item:
Arquivo TamanhoFormato 
artigo-inpa.pdf601,49 kBAdobe PDFVisualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.