Changes in distribution area of Korean musk deer (Moschus moschiferus parvipes) from 1950s to 1999 i

来源 :林业研究 | 被引量 : 0次 | 上传用户:yichunjekiyi
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Based on the literature reviews and questionnaire, field survey on the species, feces, and tracks in non-snow season and snow season of Korean musk deer from February to December of 1999 in South Korea (Cultural Properties Administration 1999), the authors summarized the change of distribution area and number of Korean musk deer from 1950s to 1999. The results showed that the distribution area of Korean musk deer (Moschus moschiferus parvipes) was sharply decreased from 1950s to 1999 in South Korea. Due to the road and forest road construction in the habitat of Korean musk deer, the musk deer habitats were fragmented and lost. And the illegal capture for economic benefits was the main reason of decreases in number of individuals and habitats of this species. Forest roads in high elevation area were also used as the passages for illegal captures. For the conservation and protection of Korean musk deer, strict regulation of illegal capture is urgently needed.
其他文献
DNA计算机是当前研究的热点问题,我国的研究则刚刚起步.本文详细论述了DNA序列的概念及性质,DNA计算的原理,同时介绍了DNA计算的研究进展概况.
采用不连续聚丙烯酰胺凝胶电泳技术研究了中国栉孔扇贝和日本栉孔扇贝两个天然种群的六种同工酶。结果表明:两个种群具有基本相同的基因位点控制同工酶的表达,二者都具有居群
目的探讨半侧卧位后腹腔镜手术途径与侧位经后腹腔手术途径腹腔镜肾上腺肿瘤切除术的临床效果。方法对施行腹腔镜肾上腺肿瘤切除术105例患者的临床资料进行回顾性分析,其中采
对微生物耐药性研究的一些新发现 ,如病原菌可从有益或无害的细菌获得耐药因子 ,对耐药突变产生补偿突变来降低适应代价 ,以及耐药性选择产生的交叉适应等现象 ,使得微生物耐
为了探求小麦新种质 2 4 1巨穗、粒大、结实率高等优良性状的遗传机理 ,应用单体分析和双端体分析方法对 2 4 1材料进行遗传学研究。结果表明 ,小麦新种质材料 2 4 1的 3A、5
从20世纪80年代中期开始,对抚顺地区的蝴蝶资源进行了认真细致的调查、采集及开发利用研究,结果表明:抚顺地区蝴蝶共有8科160余种,丰富的蝴蝶资源,为其开发利用开辟了广阔的
科学作为探索自然、认识自我的活动,在不同的时期,对不同的学科,有其特定的研究方式.对数学来说,从两千多年前的毕达哥拉斯到20世纪数学大师希尔伯特,都遵循着相同的模式:一
变点颊脊隐翅虫群目前已知10种,都生活在东亚和东南亚地区 ( Smetana, 1998 ),其中,来自越南北部 1种,尼泊尔1种,日本1种,中国7种.本文记述并图示中国四川一新种,卢氏颊脊隐
Objective To oberve the change in blood glutathione peroxidase (GSH-Px) protein levels of residents in the low-selenium (Se) area by contrasting the blood GSH-P
Objective To prevent infection from herpes simplex virus type 2(HSV-2),and make the foundation for the construction of multi-valent DNA vaccine. Methods The com