2002. Neotrop. 2002. [ Links ], VANZOLINI, P.E., RAMOS-COSTA, A. 1980). 1996. The smaller species, feed primarily on arthropods, amphibians and lizards whereas larger species feed on lizards and small mammals (Klauber 1956, 1972). [ Links ], BEEBE, C.W. Approximately 52 (12%) of the intestines contained hair. Herpetologica 55:200-204. 1995. [ Links ], REINERT, H.K. [ Links ], MARTINS, M., MARQUES, O.A.V. Edición Privada, San José, Costa Rica. Zootaxa 2336:19-25. Compisition and natural history of a Cerrado snake assemblage at Itirapina, São Paulo state, southeastern Brazil. nécessaire] à ce sujet affirme à titre anecdotique que « sa morsure équivaut à une morsure de vipère heurtante et une morsure de cobra indien naja simultanées ». 2003. For instance, adult Crotalus horridus from several regions of the United States (Clark 2002) as well as C. viridis in southeast Idaho (Diller & Wallace 1996) feed mainly on birds and small mammals. [ Links ], PRIVAL, D.B., GOODE, M.J., SWANN, D.E., SCHWALBE, C.R. 6(3):135-160. Répteis das Caatingas. Techn. 2005) from Colombia to Argentina (Vanzolini et al. 2012. Ecological and phylogenetic correlates of feeding habits in Neotropical pitvipers of the genus Bothrops. Collins & S.S. Novak, eds). MATO GROSSO DO SUL: Ilha Solteira (IBSP 38087) - one rodent; Sidrolândia (IBSP 23922) - one rodent. Four prey categories were identified in the stomachs, the main being rodents 75.76% (Figure 2), marsupials 6.06%, followed by unidentified mammals 9.09% and reptiles 9.09% (Figure 3). 38(1):151-156. http://dx.doi.org/10.1670/103-03N Given this, behavioral and physiological changes necessary to switch from finding and consuming relatively sedentary ectotherms to finding and consuming fast, active endotherms might be costly (Clark 2002). 1980) and lizards (Santos & Germano 1996), can be considered as occasional food items in the C. durissus diet. In: The Cerrados of Brazil: ecology and natural history of a Neotropical savanna (P.S. Similarly, in Cerrado endothermic prey types are rich and abundant, about 194 species of mammals are recognized, in which 51 are rodents and 17 marsupials (Marinho-Filho et al. Sur les flancs il présente des triangles obscurs, bordés de clair, avec un angle pointé vers le dos, dont certains rejoignent les angles des losanges dorsaux. ACHAVAL, F., MELGAREJO, A. In the current study, the diet composition of C. durissus was similar, characterized by a greater proportion of rodents. Cornell University Press, Ithaca. Herein, we describe the diet of C. tzabcan on the basis of data from field encounters, museum specimens, and published data. We considered specimens to be neonates when their snout-vent length was smaller than 400mm (Hoyos, 2012). Stud. Additionally, some factors such as adaptations related to competition, niche utilization, foraging strategies, costs of time and energy and prey availability (Schoener 1969; Shine 1986; Shine et al. Selon Reptarium Reptile Database (20 décembre 2013)[2] : Les sous-espèces Crotalus durissus culminatus et Crotalus durissus tzabcan (Klauber, 1952) ont été déplacées dans l'espèce Crotalus simus (Campbell & Lamar, 2004). Figure 2 Food category (rodent) of Crotalus durissus from Distrito Federal. The consumption of rodents in all age classes and both sexes is favored because this prey is the most abundant throughout the year. In addition, there are isolated populations in open areas within savannas of the Amazonian Forest (Campbell & Lamar 1989). [ Links ], BONVICINO, C.R., LIMA, J.F.S & ALMEIDA, F.C. A new species of Calomys Waterhouse (Rodentia: Sigmodontinae) from the Cerrado of Brazil cental. & SAWAYA, R.J. 2009. Rev. [ Links ], ARAUJO, C.O. [ Links ], ECHEVERRIGARAY, S., GRAZZIOTIN, G., GRAZZIOTIN, F. & AGOSTINI, G. 2000. Crotalus durissus unicolor is considered a full species by most recent authors. Il possède un appendice corné qu'il exhibe à l'extrémité de la queue, composé au maximum de 14 segments enfilés et produisant un son caractéristique lorsque le serpent les agite. Alternatively a small percentage of rattlesnakes feed almost exclusively on endothermic preys, like C. durissus (Salomão et al. You have requested a machine translation of selected content from our databases. & WÜSTER, W. 2007. In Brazil, Crotalus durissus is widely distributed, except for the states of Acre and Espírito Santo. Moreover, the microhabitat to which similar species are adapted to may not be used by local populations of reptiles that could serve as appropriate prey (Reinert 1984). & LAMAR, W.W. 2004. Adults of both sexes and some juveniles feed mostly on mammals, specifically rodents, it is the most active and abundant prey throughout the year mainly in areas from Cerrado. We would like to thank the curators, collection managers and technical assistants. La couleur de fond est châtain nuance claire, avec une série d'au moins 18 losanges plus obscurs que le fond et délimités par des écailles blanchâtres. A new species of Calomys (Rodentia: Sigmodontinae) from eastern Brazil. [ Links ], BARBO, F.E., MARQUES O.A.V. Los adultos de ambos sexos e individuos jóvenes se alimentaron básicamente de mamíferos, en específico de roedores, esta es la presa más activa y abundante durante todo el año, principalmente en las áreas de Cerrado. Crotalus durissus est une espèce de serpents de la famille des Viperidae [1]. Oliveira & R.J. Marquins, eds). Herpetologica 45(3):299-304. http://dx.doi.org/10.2307/3892885 The rodents were registered in almost all forest formations studied; marsupials were registered only in Cerrado sites, and lizards in areas of Caatinga and Cerrado (Figure 1) (Appendix 1). [ Links ], DILLER, L.V. Biol. Mammal specialization may be related to several life history strategies (Martins et al. 34:1296-1312. http://dx.doi.org/10.1111/j.1365-2699.2007.01707.x [ Links ], SHINE, R. 1986. & MARTINS, M. 2008. This content is available for download via your institution's subscription. In addition, these results show a slight trend towards increased consumption of lizards in females. Academia Brasileira de Ciências, Rio de Janeiro. [ Links ], SANTOS, S.M. 2009; Barbo et al. 1946. Comparative ecology of two snake species (Crotalus viridis and Pituophis melanoleucus) in southwestern Idaho. A.). La sous-espèce Crotalus durissus vegrandis est également appelée Crotale du Venezuela. The Cerrado mammals: Diversity, ecology and natural history. TOCANTINS: Palmas (CHUNB 14690) - one rodent. Columbia University Press, New York, p. 223-241. [ Links ], SAWAYA, R.J., MARQUES, O.A.V. Crotalus vegandris from Venezuela (Pífano & Rodriguez-Acosta 1996), C. pricei, and C. lepidus from some areas in Mexico and the United States (Holycross et al. Neotropical rainforest mammals. & VITT, L.J. Au cou, il est orné de deux lignes longitudinales latéro-dorsales blanchâtres, de la largeur d'une écaille. 1980. Anfibios y reptiles del Chaco Paraguayo. Keywords diet composition; mammal specialization; lizards; Cerrado. Un ouvrage[réf. [ Links ], WÜSTER, W., FERGUSON, J.E., QUIJADA-MASCAREÑAS, J.A., POOK, C.E. The South-American rattlesnake Crotalus durissus: feeding ecology in the central region of Brazil, La serpiente cascabel sudamericana Crotalus durissus: ecología alimentar en la región central de Brasil, 1Universidade da Região de Joinville, Pós-graduação em Saúde e Meio Ambiente, Joinville, SC, Brazil, 2Instituto Butantan, Laboratório de Ecologia e Evolução, São Paulo, SP, Brazil, 3Pós-graduação em Anatomia dos Animais domésticos e Silvestres, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, USP, Av. Un point extrêmement important, la toxicité particulière de son venin qui est composé de phospholipases A2 neurotoxiques (crotamine et crotoxine) est caractéristique, en particulier chez C D. terrificus, la sous-espèce la plus méridionale. Herpetologica 52(3):343-360. http://dx.doi.org/10.2307/3892654 1956. Eagle Mountain Publishing, Utah, p. 1-22. & SAZIMA, I. 2012. In many species of Crotalus there is ontogenetic variation in diet, with juveniles feeding primarily on ectothermic prey whereas adults prefer endothermic animals as food. Relationships of venom ontogeny and diet in Bothrops. MINAS GERAIS: Camanducaia (CHUNB 67995) - one rodent; Conceição dos Ouros (IBSP 68493) - one rodent; Muzambinho (CHUNB 24288) - one rodent; Unaí (CHUNB 20460, 20475-76, 24379) - one lizard, one unidentified mammal and two rodents. All food items were removed from the stomach and identified to the lowest possible taxonomic level. Specimen deposited in the Coleção Herpetológica da Universidade de Brasília (CHUNB 49673). 1996. Natural history of a northern population of twin-spotted rattlesnakes, Crotalus pricei . Greene, eds). Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website. DISTRITO FEDERAL: Brasília (CHUNB 5439, 22100) - three rodents. Please note that a BioOne web account does not automatically grant access to full-text content. Brenesia 45-46:169-175. Activity pattern of Crotalus durissus (Viperidae, Crotalinae): Feeding, reproduction and snakebite. Fauna E. 30(2):101-106 Figure 1 Geographical distribution of Crotalus durissus with stomach contents from Central Region of Brazil covering forest formations of Amazon and Atlantic forest, Caatinga and Cerrado. At each molting, which generally occurs every 6 to 12 months depending on the diet, a new ring is formed. J. Biogeogr. Mc-Graw Hill Publishing Company, New York, p. 302-334. J. Herpetol. This functionality is provided solely for your convenience and is in no way intended to replace human translation.
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