OBJECTIVE To establish which skin diseases occur in crocodiles, particularly those on farms, to indicate the relative frequency of each particular disease and to provide information on pathogenesis, especially in regard to lesions with two or more pathogens present. DESIGN A gross and microscopic retrospective (period of 1989 to 1995) and current (1996 to 1997) examination of skin lesions in ...

For many mesopelagic fishes, even basic knowledge regarding their biology is missing, greatly impeding effective management. Here we present length–weight relations for 16 fishes sampled during research surveys in the Greek seas (eastern Mediterranean). The following species were studied: Benthosema glaciale (Reinhardt, 1837); Ceratoscopelus maderensis (Lowe, 1839); Diaphus holti Tåning, 1918; ...

Land-use conversion and resulting habitat fragmentation can affect the source(s) of primary productivity that fuels food webs alter their structure in ways leads to biodiversity loss. We investigated effects landscape modification on Araguaia River floodplain central Brazil using top predator, indicator species Caiman crocodilus (Crocodilia, Alligatoridae). measured carbon (δ 13 C) nitrogen 15 ...

During 2009-2012, wild animals were sampled in two areas within the Amazon biome of Brazil, in the states of Mato Grosso and Pará. Animal tissues and blood were molecularly tested for the presence of Piroplasmida (genera Babesia, Theileria, Cytauxzoon) or Hepatozoon DNA. Overall, 181 wild animals comprising 36 different species (2 reptiles, 5 birds, and 29 mammals) were sampled. The following P...

Historically, studies aimed at prospecting and analyzing paleontological and neontological data to investigate species distribution have developed separately. Research at the interface between paleontology and biogeography has shown a unidirectional bias, mostly focusing on how paleontological information can aid biogeography to understand species distribution through time. However, the modern ...

Traditionally, conservation efforts have concentrated on protecting plant and animal populations through the establishment of national parks and reserves. These protect only a small proportion of wildlife habitats and, in many countries, increasing their extent is difficult. This is certainly the case in many countries in Latin America, where enforcing wildlife protection laws is also difficult...