Caatinga Ethnoherpetology: Relationships Between Herpeto- Fauna and People in a Semiarid Region of Northeastern Brazil
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Copyright: © 2014 Mendonça et al. This is an open-access article distributed under the terms of the Creative Commons Attribution–NonCommercial–NoDerivs 3.0 Unported Amphibian & Reptile Conservation License, which permits unrestricted use for non-commercial and education purposes only [General Section] 8(1): 24–32. provided the original author and source are credited. The official publication credit source: Amphibian & Reptile Conservation at: amphibian-reptile-conservation.org Caatinga Ethnoherpetology: Relationships between herpeto- fauna and people in a semiarid region of northeastern Brazil 1,2Lívia Emanuelle Tavares Mendonça, 2Washington Luiz Silva Vieira, and 3,*Rômulo Romeu Nóbrega Alves 1,3Departamento de Biologia, Universidade Estadual da Paraíba, Av. das Baraúnas, 351/Campus Universitário Bodocongó, 58109-753 Campina Grande, PB, BRAZIL 1,2 Departamento de Sistemática e Ecologia da Universidade Federal da Paraíba, Programa de Pós-Graduação em Ciências Biológicas (Zoologia), Laboratório de Ecofisiologia Animal, 58051-900 João Pessoa, PB, BRAZIL Abstract.—We investigated the interactions between humans and herpetofauna in the semiarid region of Paraíba State, Brazil. Data were obtained by means of interviews with 124 hunters or ex-hunters using semi-structured questionnaires, complemented by informal conversations. We recorded 18 species (17 reptiles and one amphibian) that local human populations interact with because they have some utilitarian value or because of conflicting relations with local inhabitants. Implementation of conservation measures aimed at the herpetofauna in this region is particularly difficult due to the aversion that local people hold toward many of these species. Therefore, environmental education strategies should be adopted. These efforts should not be solely directed at species subject to hunting, but should be all-inclusive and take into consideration the cultural, social, and utilitarian role that governs the interactions of human populations and the herpetofauna of the Caatinga. Key words. Caatinga, conservation, ethnobiology, ethnozoology, hunting, reptiles, wildlife use Citation: Mendonça LET, Vieira WLS, Alves RRN. 2014. Caatinga Ethnoherpetology: Relationships between herpetofauna and people in a semiarid region of northeastern Brazil. Amphibian & Reptile Conservation 8(1) [General Section]: 24–32 (e78). Introduction 12 amphisbaenids, 53 snakes, five testudines, and four Humans and herpetofauna (amphibians and reptiles) crocodilians), many of which interact with local human have interacted for millennia, virtually wherever they populations, where they furnish products exploited by have been in contact (Alves et al. 2013b). As a result, the local people or are hunted and killed due to conflict- interactions between humans and these animals are quite ing relations with people (Alves et al. 2009b, 2012a, b, varied, encompassing utilitarian, symbolic, and conflict- c; Barbosa et al. 2011; Fernandes-Ferreira et al. 2013). In ing aspects (Alves et al. 2008, 2009a, 2012b, c; Fer- this context, understanding of the relations between hu- nandes-Ferreira et al. 2012a; Franke and Telecky 2001; mans and the herpetofauna of the region is an important Klemens and Thorbjarnarson 1995; Morris and Morris step in designing strategies for management and sustain- 1965; Moura et al. 2010; Schlaepfer et al. 2005). Such able use, and should consider the ecological, economic, interactions can be studied through ethnoherpetology, and cultural aspects associated with these interactions. a subdivision of ethnozoology, which examines the re- Ethnoherpetological studies have only recently begun lationships between human cultures and herpetofauna in Caatinga, although general ethnozoological research (Bertrand 1997; Das 1998; Goodman and Hobbs 1994; indicates that reptiles and amphibians are hunted by ru- Speck 1946). Ethnozoological studies can aid in the ral and urban populations of the region (Albuquerque et evaluation of the impacts human populations have on na- al. 2012; Alves et al. 2012b; Fernandes-Ferreira et al. tive animal species and in the development of sustainable 2012a). In an effort to contribute to our ethnoherpetologi- management plans, and thus, they are essential to conser- cal knowledge and its implications in the semiarid region vation efforts (Alves 2012; Alves and Souto 2011). of northeastern Brazil, we investigated the interactions Caatinga is the name given to the semiarid region that between humans and herpetofauna in the municipality of occupies the largest portion of Northeast Brazil and rep- Pocinhos in the semi-arid region of Paraíba State (PB). resents one of the major examples of a semiarid environ- Our aim was to record the patterns of interactions of the ment in the Neotropical region (Albuquerque et al. 2012; local people with representatives of this animal group in Alves et al. 2012b). In this biome, 205 herpetofaunal the region. This information may be used to enhance con- species have been recorded (65 amphibians, 66 lizards, servation of the Caatinga’s herpetofauna. Correspondence. Email: *[email protected] Amphib. Reptile Conserv. | amphibian-reptile-conservation.org (24) July 2014 | Volume 8 | Number 1 | e78 Mendonça et al. Materials and Methods Vernacular names of the specimens cited were re- corded and the animals identified in the following ways: Study area (1) analysis of the specimens or parts thereof donated by The present study was carried out in the municipality the interviewees; (2) analysis of photographs of animals of Pocinhos, located in the semi-arid region of Paraíba taken during the interviews and during the accompani- State, Brazil (Fig. 1; Ribeiro 2003). Pocinhos is 630 km2 ment of hunting activities; (3) use of identifications by in area, with approximately 17,032 inhabitants. Average taxonomists familiar with the fauna of the study area and annual temperature is 23 °C, which varies little through- use of vernacular names; and (4) information from previ- out the year. The region has a very low rainfall rate, fluc- ous ethnozoological studies carried out in the study area tuating annually between 400 and 600 mm. The climate (Alves et al. 2009b; Confessor et al. 2009; Mendonça et is hot, semi-arid, with rainfall in the autumn and winter al. 2011). The scientific nomenclature of the species that months (Ribeiro 2003) and the vegetation is dominated are cited in this study follows the guidelines of the Bra- by sub-deciduous and deciduous forests typical of semi- zilian Society of Herpetology (http://www.sbherpetolo- arid regions (Alves et al. 2009b; Ribeiro 2003). gia.org.br/). After analysis, specimens were deposited at the zoo- Procedures logical collections of the Universidade Federal da Paraí- The study was conducted in the period of June 2010 to ba. Samples were collected with the permission of the In- June 2011. The information was obtained by means of stituto Chico Mendes de Conservação da Biodiversidade interviews with hunters or ex-hunters using semistruc- (ICMBio) and the Sistema de Autorização e Informação tured questionnaires, complemented by informal con- em Biodiversidade (SISBIO), license number 25926-2. versations (Bernard 1994; Huntington 2000). The selec- tion of informants was done by the “snowball” sampling Data Analysis technique (Bailey 1994), where from the initial contact, an informant indicates another who in turn indicates still An accumulation curve of the herpetofaunal species cited another and so forth. Before each interview, the nature by interviewees was prepared. In an accumulation curve and objectives of the research were explained, and the for ethnobiological data, the X-axis corresponds to the interviewees gave their permission to record the informa- number of individuals interviewed and Y-axis the num- tion, by signing an informed consent form. ber of species cited by the respondents. The curve was The questionnaires were applied to 124 hunters from randomized 1,000 times and the means were calculated the municipality, of which 98 (79%) live in urban ar- using the software EstimateS© version 8.2 (Colwell eas but frequently travel to rural areas to hunt, while 26 2009). EstimateS© permits the statistical analysis of spe- (21%) live in the rural zone. The ethical approval for the cies richness (for this work, species richness can be in- study was obtained from the Ethics committee of Hospi- terpreted as the richness of species locally exploited) of tal Lauro Wanderley (protocol number: CEP/HULW nº samples by determination of the Chao2 index (Colwell 103/10). and Coddington 1994). This index has been used in pre- Fig. 1. Location of the municipality of Pocinhos (Paraíba State, Northeast Brazil), where the study was conducted. Amphib. Reptile Conserv. | amphibian-reptile-conservation.org (25) July 2014 | Volume 8 | Number 1 | e78 Ethnoherpetology of the Caatinga region of Brazil vious ethnozoological studies (Ferreira et al. 2012; Souto were cited for their utilization as food (n = 7 species), et al. 2011; Whiting et al. 2011). where lizards were the principal group cited for this pur- The non-parametric estimator Chao2 (Chao 1987) is pose, mainly the White tegu (Salvator merianae, Du- calculated by the following formula: méril and Bibron 1839; Use-Value = 0.66). Other lizards reported as being used for food were the Green iguana (Iguana iguana, Linnaeus 1758) and the whiptail lizard (Ameivula ocellifera, Spix 1825), with the latter being rarely consumed, as it was cited by only two interview- ees. In relation