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Captive-rearing state endangered crawfish frogs Lithobates areolatus from Indiana, USA

机译:来自美国印第安纳州的圈养饲养的濒危小龙虾蛙

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Crawfish frogs Lithobates areolatus inhabit the tallgrass prairie of the southeastern Great Plains and Mississippi Delta, and have recently been considered for US federal listing under the Endangered Species Act. Here we attempt to determine the feasibility of head-starting crawfish frog tadpoles, and establish captive-rearing protocols. Captive-rearing produced more juveniles from fewer egg masses than a natural wetland in each year from 2013–2015, and survivorship of captive-reared tadpoles exceeded that of wild tadpoles. However, high rates of malformations, partial cannibalism, disease, and predation were seen among frogs in some years, and we therefore refined protocols to reduce these issues.
机译:小龙虾蛙石斑鱼生活在东南大平原和密西西比三角洲的高草草原上,最近被《濒危物种法》列入美国联邦清单。在这里,我们尝试确定引人入胜的螯虾青蛙t的可行性,并建立圈养饲养协议。自2013年至2015年,每年人工饲养的幼鸟比自然湿地产卵的蛋少,人工饲养的t的存活率超过了野生t。但是,几年来在青蛙中发现了很高的畸形率,部分自相残杀,疾病和掠食,因此我们改进了方案以减少这些问题。

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