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In recent years, Chinese goral (Nemorhaedus griseus) carcasses were frequently found in the mid-Qinling Mountains. In order to assess the spatial distribution pattern of goral carcasses, data of the individuals from Shaanxi's Fourth Giant Panda Survey was used in this study to analyse how the gorals/goral carcasses sites were related to altitude, slope, aspect, river, and road through quantitative analyses. The results showed:(1) the correlation between the sites of goral carcasses and topographic factors was relatively significant. Goral carcasses tend to be found at relatively low altitude (1 200-2 400 m) and mild slope (6°-25°). The chi-square test also showed that the aspect of the goral carcasses sites was significantly different from the goral sites. Most of the goral carcasses were found at south-facing/half southfacing slopes. (2) The correlation between the sites of goral carcasses and the distance to river was significant. The kernel density analysis and Z-test further showed that there were significant differences between the gorals/goral carcasses sites and the distance to river. Most of the goral carcasses sites were close to river (< 100 m). (3) The correlation between the sites of goral carcasses and the distance to road was not significant. Kernel density analysis and Z-test showed that there was no significant difference between the sites of gorals/goral carcasses and the distance to road. This study proposed several suggestions about how to strengthen the protection of gorals in the future. 相似文献
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大熊猫DNA序列变异及其遗传多样性研究 总被引:3,自引:0,他引:3
张亚平 Oliver A Ryder 范志勇 张和明 何廷美 何光昕 张安居 费立松 钟顺隆 陈红 张成林 杨明海 朱飞兵 彭真信 普天春 陈玉村 姚敏达 郭伟 《中国科学C辑》1997,27(2):139
测定了来自马边、美姑、越西、宝兴、平武、青川、南坪和白水江等地40只大熊猫336~444bp的线粒体tRNA基因和D环区序列.在21个创立者中共检出9种线粒体DNA单倍型.发现大熊猫的遗传分化程度很低,地理群体间无显著的遗传隔离.大熊猫现生群体可能源于晚更新世,并受瓶颈效应的影响.在此之后,其遗传多样性得到了一定程度的恢复. 相似文献
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为探索圈养鹤类的血液生化指标差异,本研究对白鹤(Grus leucogeranus)、丹顶鹤(G.japonensis)、黑冠鹤(Balearica pavonina)、黑颈鹤(G.nigricollis)、灰冠鹤(B.regulorum)、蓝鹤(Anthropoides paradiseus)和白枕鹤(G.vipio)的10项血液生化指标(总胆固醇、甘油三酯、总蛋白、白蛋白、球蛋白等)进行统计分析,并与国际物种信息系统(ISIS)提供的数据进行比较。结果表明,1)不同鹤类之间总胆固醇差异显著,而甘油三酯和血糖没有显著性差异,除了黑冠鹤和灰冠鹤的总胆固醇以及蓝鹤的血糖外,其余鹤类的常值均高于ISIS的平均值。2)不同鹤类之间的总蛋白、球蛋白和白蛋白的浓度差异显著,但总蛋白、球蛋白和白蛋白均在ISIS的正常范围内。3)不同鹤类间肌酐和尿酸不具有显著性差异,其中尿酸低于ISIS平均值,但仅尿素氮差异显著。不同鹤类之间血液生化指标存在差异,与圈养鹤的营养水平和环境有关。因此血液生化指标对于圈养鹤类营养状态和健康情况的判断具有重要参考价值,对圈养动物饲养管理具有重要的指导作用。 相似文献
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