Navegando por Autor "VERDADE, L. M."
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Item effect of translocation on egg viability of the giant amazon river turtle, podocnemis expansa(2003) BONACH, K.; MIRANDA-VILELA, M. P.; ALVES, M. C.; VERDADE, L. M.Item RELATIONSHIP BETWEEN BODY MASS AND BODY LENGTH IN CAPYBARAS (HYDROCHOERUS HYDROCHAERIS)(Universidade de São Paulo, 2005-03-14) FERRAZ, K. M. P. M. B.; BONACH, K.; VERDADE, L. M.As a part of a management program we captured 39 capybaras (Hydrochoerus hydrochaeris) in an agroecosystem at the east central region of the State of São Paulo, Brazil from March 2001 to May 2002. Average adult male body mass was 54.1 ± 8.05 kg, and average adult female body mass was 62.0 ± 12.03 kg. Average juvenile male body mass was 23.0 ± 8.28 kg, and average juvenile female body mass was 26.7 ± 5.86 kg. Males and females presented a significant variation in the allometric relation between body mass and body length. Body mass and body length had a high correlation for both adult males and adult females. These results from capybaras in agroecosystem might be relevant for further management programsItem Temperature-sex determination in Podocnemis expansa(2011-09-30) BONACH, K.; MALVASIO, A.; MATUSHIMA, E. R.; VERDADE, L. M.ABSTRACT. This study has been carried out at the central region of the Araguaia river on the border between the states of Goiás and Mato Grosso in the Brazilian Amazon Basin from September to December 2000. We recorded temperature fluctuation, clutch-size, incubation period and hatching success rate and hatchlings’ sex ratio of five nests of Podocnemis expansa (Schweigger, 1812). Despite the relatively small sample size we infer that: a) nests of P. expansa in the central Araguaia river have a lower incubation temperature than nests located further south; however, incubation period is shorter, hatching success rate is lower and clutch-size is larger; b) Podocnemis expansa may present a female-male female (FMF) pattern of temperature sex-determination (TSD); c) thermosensitive period of sex determination apparently occur at the last third of the incubation period; and, d) future studies should prioritize the relationship between temperature variation (i.e., range and cycle) and embryos development, survivorship and sex determination