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首页> 外文期刊>Oryx >Relationship between the abundance of the Endangered volcano rabbit Romerolagus diazi and vegetation structure in the Sierra Chichinautzin mountain range, Mexico
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Relationship between the abundance of the Endangered volcano rabbit Romerolagus diazi and vegetation structure in the Sierra Chichinautzin mountain range, Mexico

机译：墨西哥塞奇纳奇琴山脉的濒临灭绝的火山兔子Romerolagus diazi的丰度与植被结构的关系

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摘要

The volcano rabbit Romerolagus diazi is endemic to the mountains of central Mexico, where its habitat has been gradually destroyed to make way for agriculture, ranching and logging, and by forest fires. The volcano rabbit is categorized as Endangered on the IUCN Red List. We evaluated the relationship between the abundance of the volcano rabbit and vegetation structure at a small scale (0.25 ha). Using a general linear model we generated a set of 21 predictive models and proposed the best model as a habitat quality index. Our results suggest that greater height and cover of bunchgrasses and the presence of a shrub layer offer the volcano rabbit the best refuge from predators. The habitat quality index and the limited available habitat documented in our survey indicate that the populations of volcano rabbits in the study area are more threatened than previously thought. As R. diazi is a habitat specialist it does not have the option of moving to another habitat type.
机译：火山兔子Romerolagus diazi是墨西哥中部地区的特有种，那里的栖息地已被逐渐破坏，以供农业，牧场和伐木以及森林大火使用。 IUCN红色名录将火山兔归为“濒危”。我们以小规模（0.25公顷）评估了火山兔的丰度与植被结构之间的关系。使用通用线性模型，我们生成了一组21个预测模型，并提出了最佳模型作为栖息地质量指标。我们的结果表明，束草的更高的高度和覆盖度以及灌木层的存在为火山兔提供了免受捕食者的最佳庇护所。我们调查中记录的栖息地质量指数和有限的可用栖息地表明，研究区的火山兔种群受到的威胁比以前想象的要大。由于R. diazi是栖息地专家，因此无法选择使用其他栖息地类型。

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