Can conservation of single surrogate species protect co-occurring species?
Can conservation of single surrogate species protect co-occurring species?
复制标题
保护单一替代物种可以保护共生物种吗？
DOI：
10.1007/s11356-013-1675-0
复制
发表时间：
2013-09-01
影响因子：
5.8
通讯作者：
Chen, Youping
中科院分区：
文献类型：
--
作者：
Kang, Dongwei;Yang, Hongwei;Chen, Youping
替代物种的保护预计将使具有相同栖息地的相似分布的共生物种受益，但这种方法保护非目标物种的有效性受到了广泛的挑战。在这项研究中，我们的目的是评估在大熊猫和羚牛这两种拟议替代物种的保护下，是否可以为共生物种提供保护。基于对这两种濒临灭绝物种的栖息地偏好的分析，我们对它们的栖息地要求进行了深入的研究。结果显示，大熊猫比羚牛表现出更特殊的栖息地偏好，这些物种之间的栖息地分离主要反映了它们饮食要求和偏好的差异。我们认为这些差异可能有助于它们在同域地区的共存。同时，判别函数分析结果显示，保护大熊猫可以保护82.1%的大熊猫栖息地，但只能保护25.4%的羚羊栖息地，仅保护57.0%的这些物种的共同栖息地。重要的是，我们的结果还表明，联合替代物种保护方法将保护 86.9% 的大熊猫栖息地、53.7% 的羚牛栖息地以及 72.2% 的这些物种的共同栖息地。这是比大熊猫单一替代保护程度更高的栖息地保护。我们的结论是，应采用联合替代物种方法来改善生物多样性保护。
Conservation of surrogate species is expected to benefit co-occurring species with similar distributions that share the same habitat, yet the usefulness of this approach to protect nontarget species has been extensively challenged. In this study, we aimed to assess whether co-occurring species could be afforded protection under the conservation of two proposed surrogate species, the giant panda and the takin. We undertook a thorough study on the habitat requirements of these two endangered species, based on the analysis of their habitat preferences. The results revealed that the giant panda exhibits more specialized habitat preferences than does the takin and that habitat separation between these species mainly reflected differences in their dietary requirements and preferences. We suggest that these differences might facilitate their coexistence in sympatric areas. Meanwhile, results of a discriminant function analysis showed that protection of giant pandas would protect 82.1 % of the panda’s habitat, but only 25.4 % of the takin’s habitat and just 57.0 % of the joint habitats of these species. Importantly, our results also showed that a joint surrogate species approach to conservation would protect 86.9 % of the panda’s habitat, 53.7 % of the takin’s habitat, and 72.2 % of the joint habitats of these species. This is a higher degree of habitat protection than the single surrogate conservation of pandas. We conclude that the joint surrogate species approach should be adopted to improve biodiversity conservation.