Maximum size of dwarf caiman, Paleosuchus palpebrosus (Cuvier, 1807), in the Amazon and habitats surrounding the Pantanal, Brazil

Maximum size of dwarf caiman, Paleosuchus palpebrosus (Cuvier, 1807), in the Amazon and habitats... Maximum size of dwarf caiman, Paleosuchus palpebrosus (Cuvier, 1807), in the Amazon and habitats surrounding the Pantanal, Brazil Zilca Campos 1 ,* , Tânia Sanaiotti 2 , William E. Magnusson 2 Abstract. The dwarf caiman, Paleosuchus palpebrosus , is considered one of the smallest crocodilians. However, our surveys indicate that the species regularly reaches larger sizes than usually reported in the literature. Most individuals lose tail tips, and we did not encounter any individual with snout-vent length (SVL) > 70 cm that had an intact tail. P. palpebrosus attains SVL > 112.5 cm (equivalent to a total length with intact tail estimated from SVL of 210 cm) in streams around the Pantanal, 106 cm (198 cm) in flooded forest in central Amazonia, and 100 cm (187 cm) in flooded forest and around the Madeira-Guaporé River. Keywords : conservation, natural history, sizes structures, total length. Species of Paleosuchus and Osteolaemus are considered to be the smallest crocodilians, with adult sizes between 1.0 and 1.5 m (Grigg and Gans, 1993). However, there is disagreement as to the maximum size of Paleosuchus palpebro- sus in the literature. The species occurs from Venezuela to Paraguay (Magnusson, 1992). Me- dem (1981) considered that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Amphibia-Reptilia Brill

Maximum size of dwarf caiman, Paleosuchus palpebrosus (Cuvier, 1807), in the Amazon and habitats surrounding the Pantanal, Brazil

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Publisher
Brill
Copyright
© 2010 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0173-5373
eISSN
1568-5381
D.O.I.
10.1163/156853810791769392
Publisher site
See Article on Publisher Site

Abstract

Maximum size of dwarf caiman, Paleosuchus palpebrosus (Cuvier, 1807), in the Amazon and habitats surrounding the Pantanal, Brazil Zilca Campos 1 ,* , Tânia Sanaiotti 2 , William E. Magnusson 2 Abstract. The dwarf caiman, Paleosuchus palpebrosus , is considered one of the smallest crocodilians. However, our surveys indicate that the species regularly reaches larger sizes than usually reported in the literature. Most individuals lose tail tips, and we did not encounter any individual with snout-vent length (SVL) > 70 cm that had an intact tail. P. palpebrosus attains SVL > 112.5 cm (equivalent to a total length with intact tail estimated from SVL of 210 cm) in streams around the Pantanal, 106 cm (198 cm) in flooded forest in central Amazonia, and 100 cm (187 cm) in flooded forest and around the Madeira-Guaporé River. Keywords : conservation, natural history, sizes structures, total length. Species of Paleosuchus and Osteolaemus are considered to be the smallest crocodilians, with adult sizes between 1.0 and 1.5 m (Grigg and Gans, 1993). However, there is disagreement as to the maximum size of Paleosuchus palpebro- sus in the literature. The species occurs from Venezuela to Paraguay (Magnusson, 1992). Me- dem (1981) considered that

Journal

Amphibia-ReptiliaBrill

Published: Jan 1, 2010

Keywords: SIZES STRUCTURES; CONSERVATION; TOTAL LENGTH; NATURAL HISTORY

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