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The conservation of Brazilian reptiles: Challenges for a megadiverse country

机译:巴西爬行动物的保护:一个多元化国家的挑战

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摘要

About 650 species-330 snakes, 230 lizards, 50 ampbisbaenids, 6 caimans, and 35 turtles-comprise the known reptile fauna of Brazil. Only 20 are considered threatened. Except for the marine and freshwater turtles, which suffer from overexploitation and habitat destruction, they are threatened because of their rarity and extremely restricted ranges. Despite its richness and diversity, research on Brazil's reptile fauna is still largely restricted to alpha taxonomy. Surveys, an electronic database of all herpetological collections, and phylogeographic studies based on molecular genetic techniques are needed to improve our understanding of the biogeography of this group and to delineate effective conservation strategies to preserve the evolutionary potential of existing lineages. Autecological, population, and community studies that monitor effects of habitat degradation, fragmentation, and loss, pollution, and exploitation, are needed for a better understanding of the effects of the widespread and ever-worsening degradation of Brazil's natural ecosystems.
机译:大约有650种动物,包括330条蛇,230只蜥蜴,50只双翅类,6只凯门鳄和35只海龟,它们是巴西已知的爬行动物区系。仅20被认为受到威胁。除了遭受过度开发和栖息地破坏的海龟和淡水龟以外,它们还因其稀有性和极度受限的范围而受到威胁。尽管巴西爬行动物种类繁多,但研究仍主要限于alpha分类法。需要调查,所有爬行动物收藏的电子数据库以及基于分子遗传技术的系统地理学研究,以增进我们对这一群体生物地理学的了解,并描绘出有效的保护策略,以保留现有谱系的进化潜力。为了更好地了解巴西自然生态系统广泛且日益恶化的退化所产生的影响,需要进行生态学,人口和社区研究,以监测栖息地退化,破碎,丧失,污染和开发的影响。

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