It is proposed that where sexually selected vocal communication is an honest signal, the call production rate is predicted to change throughout the breeding season. Male leopard seals call underwater for many hours each day over their three- to four-month breeding season, and it is hypothesized that a decrease in calling rate would be associated with the declining body condition of smaller male...

Limitations of phenotypic plasticity affect the success of individuals and populations in changing environments. We assessed the plasticity-history limitation on predator-induced defenses in anurans (Wood Frogs, Lithobates sylvaticus (LeConte, 1825), and Northern Leopard Frogs, Lithobates pipiens (Schreber, 1782)), predicting that plastic responses to predation risk by dragonfly larvae (family ...

Protected areas are commonly assumed to (and most do) harbour higher densities of wildlife than adjacent, humanmodified landscapes (Woodroffe & Ginsberg, 1998; Melville & Bothma, 2006; Gaston et al., 2008; Newmark, 2008; Kiner et al., 2009). In north-central Namibia, farmers believed that leopard (Panthera pardus) densities were growing on farmland areas adjacent to Waterberg Plateau Park and t...

A. hebraeum nymphae were found on 4 angulate tortoises and 13 leopard tortoises in the Addo Elephant National Park, Eastern Cape Province. Adults of this species were collected for the 1st time from a leopard tortoise in the Mkuze Game Reserve, Natal. The significance of this finding, in relation to the normal host preferences of this tick, is briefly discussed.

While African leopard populations are considered to be continuous as demonstrated by their high genetic variation, the southernmost leopard population exists in the Eastern and Western Cape, South Africa, where anthropogenic activities may be affecting this population's structure. Little is known about the elusive, last free-roaming top predator in the region and this study is the first to repo...

This study developed habitat potential maps for the marten (Martes flavigula) and leopard cat (Prionailurus bengalensis) in South Korea. Both species are registered on the Red List of the International Union for Conservation of Nature, which means that they need to be managed properly. Various factors influencing the habitat distributions of the marten and leopard were identified to create habi...

The potential for rescuing immature oocytes from the ovaries of females of rare felid species which die or undergo medical ovariohysterectomy was evaluated. Ovaries were recovered from 13 species representing 35 individuals in good-to-poor health. Although the majority of females were 10 yr of age or older and in fair-to-poor health, a total of 846 oocytes were recovered of which 608 (71.9%) we...