Printer Friendly

SIMOPHIS RHINOSTOMA (SQUAMATA: COLUBRIDAE): HABITOS DE ALIMENTACION Y CONDUCTA DEFENSIVA.

SIMOPHIS RHINOSTOMA (SQUAMATA: COLUBRIDAE): FEEDING HABITS AND DEFENSIVE BEHAVIOR

The colubrid snake Simophis rhinostoma (Schlegel, 1837) is distributed in eastern Paraguay, and in Brazil it occurs in the western, southeastern and central regions (Peters & Orejas-Miranda 1970, Cacciali et al. 2009), with its distribution range extended into the northeastern region (Argolo 1998). This species is found in Atlantic Forest and Cerrado areas (Colli et al. 2002, Costa et al. 2007, Sawaya et al. 2008).

The biology of Simophis rhinostoma is poorly known. Published data suggest it is a diurnal and terrestrial species, and there is no substantial information on diet (Sazima & Abe 1991, Sawaya et al. 2008). Some authors have previously mentioned that lizards and small rodents might be its prey items (Amaral 1976, Freitas 1999), however there are only records of ingestion of anurans in nature (Bizerra et al. 1994, Franca et al. 2008, Sawaya et al. 2008). In captive specimens, ingestion of small frogs and lizards was reported by Sazima & Abe (1991).

The species is uncommon, and in the lack of studies in the nature, observations of animals kept in captivity can add knowledge on the biology of the species (Souza 2004), providing information for conservation programs. We present a report of fish ingestion by Simophis rhinostoma, as an alternative way to feed the species in captivity, and some aspects of their feeding habits and defensive behavior.

In April 2015, a young female of Simophis rhinostoma (SVL = 250 mm; tail length = 56 mm; body mass = 9 g) from Araraquara, Sao Paulo state (21[degrees] 47' S, 48[degrees] 10' W), was collected and kept in captivity at Museu Biologico do Instituto Butantan for public exhibition.

Tadpoles of Lithobates catesbeianus (body mass ranging from 1-2 g; n = 4) were offered once a week, since newly metamorphosed frogs are too large for ingestion. However, only one tadpole was swallowed (25%) and regurgitated the following day.

Therefore, small fishes were tried as alternative food to Simophis rhinostoma, since we have observed its acceptance by non-piscivorous colubrid species kept in captivity. During 80 days, a total of 31 fishes (Hyphessobrycon eques; body mass ranging from 1-2 g) (Fig. 1) were offered twice a week. The mass of each prey ranged from 11-22% of the snake body mass.

When the first fish was ingested, the second was provided. The snake snapped the fishes mainly when they were offered in tweezers, but snapped too when they were left alive on the substrate (Sphagnum sp.). However, when the fishes were left on the water, the snake didn't show interest. The time of ingestion ranged between 40 and 45 s, considered fast as observed in other colubrids eating small prey (Marques et al. 2014). We have succeeded in the feeding of Simophis rhinostoma with fishes in 64.5% of attempts (Table 1).

In the first attempts, the snake, right after seeing the fishes, showed some defensive displays before holding the prey, such as hiding and elevating its head, and locomotor escape. After few feeding attempts, the snake did not display the defensive behaviour and just approached and snapped the fishes, usually in the middle of the body, and manipulated their prey mainly to head first ingestion (80%).

This work presents the first report of fish ingestion by the snake Simophis rhinostoma. In captivity conditions, fishes could be an alternative prey to feeding this species. Our observations confirmed the similarity between the defensive behavior displayed by S. rhinostoma and coral snakes of the genus Micrurus, described by Sazima & Abe (1991), and Marques (2000).

ACKNOWLEDGMENTS. We thank to Naylien Barreda Leyva, for the Spanish version of the abstract, and to Hana Suzuki, for English revision of the manuscript.

LITERATURE CITED

Argolo, A. J. S. 1998. Geographic distribution. Simophis rhinostoma. Herpetological Review, 29, 179.

Amaral, A. do. .1976. Serpentes do Brasil: Iconografia Colorida [Brazilian Snakes: A Color Iconography]. Editora da Universidade de Sao Paulo, Sao Paulo, Brasil, 246 pp.

Bizerra, A. F., Jordao, R. S. & Sazima, I. 1994. Natural history notes. Simophis rhinostoma. Diet. Herpetological Review, 25, 72-73.

Cacciali, P., Scott-Jr., N. J., Guenther, R., Sawaya, R. J., Brusquetti, F. & Bauer, F. 2009. Taxonomic Status of the False Coral Snake Genus Simophis (Peters, 1860) (Serpentes: Colubridae: Colubrinae) from Paraguay and Brazil. Journal of Herpetology, 43, 698-703.

Colli, G. R., Bastos, R. P. & Araujo, A. F. B. 2002. The Character and Dynamics of the Cerrado Herpetofauna. Pp. 223-241. In: P. S. Oliveira & R. J. Marquis (Eds.). The Cerrados of Brazil: Ecology and Natural History of a Neotropical Savana. Columbia University Press, New York.

Costa, G. C., Nogueira, C., Machado, R. B. & Colli, G. R. 2007. Squamate richness in the Brazilian Cerrado and its environmental-climatic associations. Diversity and Distributions, 13, 714-724.

Franca, F. G. R., Mesquita, D. O., Nogueira, C. C. & Araujo, A. F. B. 2008. Phylogeny and ecology determine morphological structure in a snake assemblage in the central Brazilian Cerrado. Copeia, 2008, 23-38.

Freitas, M. A. de 1999. Serpentes da Bahia e do Brasil. Editora DALL, Feira de Santana, Bahia, Brazil.

Marques, O. A. V. 2000. Tail displays of the False Coral Snake Simophis rhinostoma (Colubridae). Amphibia-Reptilia, 22, 127-129.

Marques, O. A. V., Muniz-Da-Silva, D. F., Barbo, F. E., Cardoso, S. R. T., Maia, D. C. & Almeida-Santos, S. M. 2014. Ecology of the Colubrid Snake Spilotes pullatus from the Atlantic Forest of Southeastern Brazil. Herpetologica, 70, 407-416.

Peters, J. A. & Orejas-Miranda, B. 1970. Catalogue of the Neotropical Squamata: part I, snakes. Bulletin of the U.S. National Museum, 297, 1-347.

Sawaya, R. J., Marques, O. A. V. & Martins, M. 2008. Composition and natural history of a Cerrado snake assemblage at Itirapina, Sao Paulo state, southeastern Brazil. Biota Neotropica, 8, 127-149.

Sazima, I. & Abe, A. S. 1991. Habitats of five Brazilian snakes with coral-snake pattern, including a summary of defensive tactics. Studies on Neotropical Fauna and Environment, 26, 159-164.

Souza, F. L. 2004. Uma revisao sobre padroes de atividade, reproducao e alimentacao de cagados brasileiros (Testudines, Chelidae). Phyllomedusa, 3, 15-27.

Circe Cavalcanti de ALBUQUERQUE, * Giuseppe PUORTO, & Silvia Regina TRAVAGLIA-CARDOSO

Museu Biologico, Instituto Butantan, Avenida Vital Brasil, 1500, 05503-900. Sao Paulo, SP, Brasil. <giuseppe.puorto@butantan.gov.br>, <silvia.cardoso@butantan.gov.br>

* Corresponding author: <circe.albuquerque@butantan.gov.br>

Recibido: 04/03/2016; aceptado: 04/10/2016

Editor responsable: Gustavo Aguirre Leon

Leyenda: Figure 1. Simophis rhinostoma (young female) at the beginning of fish ingestion.
Table 1. Simophis rhinostoma: attempts of fish ((Hyphessobrycon
eques) ingestion.

                             Attempts    Ingested    Not ingested

Offered in tweezers             17          17            0
Left alive in Sphagnum sp.      5           3             2
Left alive in water             9           0             9
Total                           31      20 (64.5%)    11 (35.5%)
COPYRIGHT 2017 Instituto de Ecologia, A.C.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2017 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:Nota cientifica/Short communication
Author:de Albuquerque, Circe Cavalcanti; Puorto, Giuseppe; Travaglia-Cardoso, Silvia Regina
Publication:Acta Zoologica Mexicana (nueva serie)
Date:Jan 1, 2017
Words:1116
Previous Article:AMPLIACION DE DISTRIBUCION DE ANOLIS COMPRESSICAUDA SMITH & KERSTER, 1955 (SQUAMATA: DACTYLOIDAE) EN EL ESTADO DE TABASCO, MEXICO.
Next Article:REGISTRO DE ANIDACION DE LA COTORRA ARGENTINA (MYIOPSITTA MONACHUS) EN EL ESTADO DE GUERRERO, MEXICO.
Topics:

Terms of use | Privacy policy | Copyright © 2021 Farlex, Inc. | Feedback | For webmasters |