Washington Luiz Silva Vieira

Reptiles used in traditional folk medicine: conservation implications

The present work provides an overview of the global use of reptiles in traditional folk medicine and the implications for conservation. The results demonstrate that at least 165 reptile species belonging to 104 genera and 30 families are used in traditional folk medicine around the world. Some species are used as sources of drugs for modern medical science. Of the reptiles recorded, 53% are included on lists of endangered species, demonstrating the importance of understanding such medicinal uses in the context of reptile conservation as well as the need for considering socio-cultural factors when establishing management plans directed towards the sustainable use of these reptiles.

Reptiles used for medicinal and magic religious purposes in Brazil

This is an overview of the use of reptiles for medicinal and magic religious purposes in Brazil and discusses their implications for conservation. All available references or reports on the reptiles species being used for medicinal or magic/religious purposes were examined. A total of 44 species of reptiles (35 genera and 17 families) are used. These 42 species are used for medicinal purposes, two for magical religious purposes and 11 for both. The largest numbers of species used were snakes (15 species), turtles and tortoises (14), lizards (10), and crocodilians (5). Therapeutic products from 42 reptile species are used to treat 100 different illnesses and at least 13 reptile species were recorded as having magic religious uses. They are commonly sold in Brazilian cities in outdoor markets and stores that sell religious articles. Of the reptiles recorded, 52.3% are endangered species, demonstrating the importance of understanding such uses in the context of reptile conservation as well as of the cultural, social, and traditional role of these reptiles for establishing management plans directed towards sustainable use.

A review on human attitudes towards reptiles in Brazil

For many millennia humans and reptiles have interacted, but the attitude of humans towards these animals has depended on culture, environment, and personal experience. At least 719 reptile species are known to occur in Brazil and about 11% of this fauna has been exploited for many different purposes, including bushmeat, leather, ornamental and magic/religious uses, and as folk medicines. Brazil can therefore serve as an interesting case study for better understanding reptile use by human societies, and the present paper catalogues some of the reptile species being used in Brazil and discusses implications for their conservation. A literature review indicated that 81 reptile species are culturally important in this country, with 47 (58%) species having multiple uses, 54 being used for medicinal purposes, 38 as food, 28 for ornamental or decorative purposes, 20 used in magic/religious practices, 18 as pets, and 40 are commonly killed when they come into contact with humans. Regarding their conservation status, 30 (37.5%) are included on States Red List, Brazilian Red List or the IUCN Red List. There are many forms of interaction between reptiles and humans in Brazil—although most of them are quite negative in terms of wildlife conservation—which reinforces the importance of understanding such uses and interactions in the context of protecting reptiles in Brazil. A better understanding of the cultural, social, and traditional roles of these reptiles is fundamental to establishing management plans for their sustainable use.

Caça, uso e conservação de vertebrados no semiárido Brasileiro:

A caça e o uso da fauna são práticas antigas e que desempenham um importante papel socioeconômico no semiárido nordestino. De uma perspectiva conservacionista, essas atividades tem evidentes implicações que necessitam ser melhor investigadas visando subsidiar planos de manejo sustentável. Diante disso, a presente pesquisa objetiva caracterizar as práticas cinegéticas direcionadas a vertebrados e seus usos em dois municípios do semiárido do Estado da Paraíba (Brasil), bem como avaliar as implicações dessas práticas para conservação. As informações foram obtidas através de entrevistas com questionários semiestruturados, complementadas com conversas informais. Um total de 37 caçadores ou usuários de produtos de animais silvestres foi entrevistado. A fauna cinegética registrada foi representada por 81 espécies de vertebrados, os quais se enquadram nas seguintes categorias de uso: alimentação (42 espécies), estimação (31), medicinal (15), artesanal (05) e ritualística (03). Um total de 21 espécies é abatida por controle, uma vez que podem representar perigo ou prejuízo. Constatou-se que dentre as espécies de valor utilitário, os grupos taxonômicos com papel mais relevante são aves e mamíferos. Nossos resultados apontam a necessidade urgente de programas educativos junto aos moradores locais procurando ordenar as atividades de caça. Considerando que a caça e uso da fauna silvestre são atividades comuns na região, percebe-se a urgência em controlar melhor essas práticas, já que a legislação não tem sido eficaz nesse sentido. A elaboração de planos de manejo e conservação deve levar em consideração o contexto social e cultural das pessoas envolvidas nessas atividades e devem ser implementados em consonância com populações usuárias dos recursos.

A zoological catalogue of hunted reptiles in the semiarid region of Brazil

The variety of interactions between human cultures and herpetofauna is the subject matter of Ethnoherpetology, a subdivision of Ethnozoology. In the semi-arid region of Brazil, many reptiles interact with human communities because of their utility or because of the risks they represent. These interactions have obvious implications for the conservation of reptiles from this region.In this context, ethnoherpetology studies are crucial because they serve as subsidies for guiding strategies for the handling and conservation of reptiles. This paper presents ethnozoological and taxonomic informations of hunted reptiles in the semiarid region of Brazil and analyse the implications on conservation that are related to the interactions between people and reptiles in this region. Taxonomic keys to identifying recorded reptiles are provided. Records of humans interacting with 38 reptile species that belong to 31 genuses and 16 families have been found. The groups with the largest numbers of recorded species were snakes (18 species), and this group was followed in number by lizards (13), chelonians (4), and crocodilians (3). The reptiles that were recorded may be used for the following purposes: medicinal purposes (24 species), food (13 species), ornamental or decorative purposes (11 species), in magical/religious practices (10 species), and as pets (10 species). Some species (n = 16) may have multiple uses. Furthermore, more than half of the species (n = 19) are commonly killed because they are considered potentially dangerous. Strategies for conserving the reptiles of the Brazilian semi-arid region must reconcile and integrate human and conservation needs.

Diversity of reproductive modes in anurans communities in the Caatinga (dryland) of northeastern Brazil

Anuran reproductive activities in xeric environments are strongly influenced by local rainfall and temperatures. Anuran species that inhabit the Caatinga biome in northeastern Brazil demonstrate numerous behavioral and reproductive strategies that avoid or minimize the negative effects of elevated temperatures and scarce water resources on egg development. Among the various anuran species found in the Caatinga region, members of the family Leptodactylidae demonstrate the greatest number of reproductive modes adapted to a terrestrial life style while most of the Hylidae species are more susceptible to variations in water availability. Laying eggs in foam nests is a common strategy among species that inhabit environments with open vegetation forms and water resources that are restricted to only short periods during the year. Data concerning anuran communities in the localities examined here indicated a greater diversity of reproductive modes in ponds with more diverse vegetation structures and longer periods of water availability indicating that the deeper the temporary ponds (permitting a longer hydroperiod) the more diverse will be the aquatic and bordering vegetation, and the richer will be the diversity of anuran species observed and the number of reproductive modes encountered there.

Lung infection rates in two sympatric Tropiduridae lizard species by pentastomids and nematodes in northeastern Brazil.

We present data on pulmonary infection rates by parasites in the lizards Tropidurus hispidus Spix, 1825 and T. semitaeniatus (Spix, 1825) living sympatrically in the Chapada do Araripe mountain Range, northeastern Brazil. We found no parasite pulmonary infection in T. semitaeniatus. However, two pulmonary parasite species were found in the T. hispidus hosts, the pentastomid Raillietiella mottae Almeida, Freire and Lopes, 2008 and the nematode Rhabdias sp. Overall prevalence was 5%. Prevalence of R. mottae was 2.5% and corresponded to only one parasite on each infected host. Prevalence of Rhabdias sp. was 2.5% and the range of infection was 1-2 parasites per host. This represents the first record of Rhabdias infecting lizards of the family Tropiduridae in the Neotropical region. Furthermore, we present a comparison of parameters of infection by pulmonary parasites including some recent studies in Brazil.

Herpetofauna Used in Traditional Folk Medicine: Conservation Implications

This chapter provides an overview of the global use of herpetofauna in traditional folk medicine and the implications for conservation. The results indicate that 331 species (284 reptiles and 47 amphibians) are used in traditional folk medicine around the world. Among the species recorded, 182 reptiles and 42 amphibians are listed in the IUCN Red List. Additionally, 93 reptiles are in some of the appendices of CITES. These numbers demonstrate the importance of understanding such medicinal uses in the context of reptile conservation as well as the need for considering sociocultural factors when establishing management plans directed toward the sustainable use of these reptiles.

Feeding habits, sexual dimorphism and size at maturity of the lizard Cnemidophorus ocellifer (Spix, 1825) (Teiidae) in a reforested restinga habitat in northeastern Brazil

The feeding habits, the sexual dimorphism in size and sexual maturity of the actively foraging lizard Cnemidophorusocellifer were analysed in an area of a reforested Restinga habitat located in the municipality of Mataraca, along the northern-most coast of Paraíba State, Brazil. Seventy-five specimens of C. ocellifer were examined (46 males and 29A females). Of this total, only 23 specimens had prey in their stomachs. The most frequent prey consumed items were orthopterans (50%), coleopterans (23.9%) and arachnids (10.9%); termites and insect larvae were less consumed (both with 2.2%). There were no significant differences observed between the numbers of prey consumed by either males or females. There were significant differences in SVL (snout-vent length) between the sexes, with males attaining larger SVL values. When the influence of SVL was removed from the analyses, sexual dimorphism in the form was still reflected in the head size of these lizards. Sexual maturity in females and males was attained with SVL of 42.2 and 49.0 mm respectively. Although no significant difference was observed between the SVL of the females and the number of eggs produced, there was a clear tendency for larger females to produce more eggs. The low structural complexity of the vegetation and the poor soil quality in the reforested restinga area examined does not furnish favourable habitat for insect and termite larvae, contributing to the marked differences in the diet of the population of C. ocellifer observed in the present study in relation to the diet of their conspecifics in undisturbed areas of restinga, cerrado and caatinga.

Medicinal Animals in Ethnoveterinary Practices: A World Overview

Medicinal animals are used as a source of medicine in virtually all cultures. Such use is not restricted to humans, but also extends to the treatment of livestock diseases. Nevertheless, animal-based medicines in ethnoveterinary practices have been neglected and poorly described. This work assesses the global use of animals in traditional veterinary medicine, as well as the perspective of this field for future research. Our results indicated that at least 98 animal species, of which 95% are wild, are used in worldwide traditional veterinary medicine. A high diversity of animal parts/products is used as remedies in ethnooveterinary practices, fat being the most used product, followed by meat, skin/leather, bones, and honey. Several zootherapeutic products are prescribed to treat similar or identical diseases in animals and humans, confirming a trend of co-evolution between human Complementary and Alternative Medicine (CAM) and Ethnoveterinary medicine (EVM).