共查询到20条相似文献，搜索用时 31 毫秒
1.
2.
3.
人为干扰会对野生动物种间关系、个体适合度、群落结构和繁殖成功率等产生中长期的影响。因此,研究野生动物反干扰行为对于我们认识该物种对其生境的行为适应和进化机制具有重要意义。2017年11—12月在内蒙古贺兰山国家级自然保护区内通过建立多元逻辑斯蒂回归模型研究了岩羊(Pseudois nayaur)、马鹿(Cervus elaphus)的反干扰策略,本研究共设置33条样线,记录了10种在人为干扰下可能会影响岩羊、马鹿反应行为的变量,经模型分析发现影响岩羊反应行为的变量有5种,影响马鹿反应行为的变量有4种,共同影响因子分别是干扰源、性别、头的朝向和地形特征,而植被类型则只对岩羊产生影响。最后根据逻辑模型得出的数据计算发生比,从而了解各个分类变量与反应行为的关系。 相似文献
4.
5.
在2010—2016年间,于每年的4—5月对吉林省左家自然保护区内人工巢箱条件下生长的野生花鼠仔兽的生长发育情况进行观察和分析,并与人工饲养条件下的花鼠仔兽进行对比,以探讨花鼠生长的最佳状态,从而为其人工繁殖提供指导。数据表明:仔兽生长过程中体重与体长的相关系数为r=0.9467,体重与尾长的相关系数为r=0.9210,体长和尾长的相关系数为r=0.9850,野生花鼠仔兽在人工巢箱条件下生长发育时间较短,各项系数较高,其体重和体长均高于人工饲养条件下的花鼠仔兽。 相似文献
6.
7.
8.
白颊长臂猿是中、老、越三国交界地区的特有种,属于国家Ⅰ级重点保护动物。目前我国白颊长臂猿主要分布于西双版纳自然保护区和绿春黄连山自然保护区。北京动物园目前共饲养了十几只白颊长臂猿,繁殖状况良好。2009年9月我园1只白颊长臂猿体表出现多处脓肿。后抽取脓液,分离到1株革兰氏阴性小杆菌。该白颊长臂猿经治疗无效后死亡。剖检时发现其体内有亦有大量脓液,经分离培养,与体表分离到的是同一株细菌。该菌株经鉴定是肺炎克雷伯氏菌肺炎亚种（Klebsiella pneumoniae ssp pneumoniae）。并对其进行了药物敏感试验。 相似文献
9.
10.
豚鹿是十分濒危的动物,在中国野外已宣布绝迹。为了弄清圈养豚鹿繁殖成活率低的原因,分别对成都动物园近年来圈养豚鹿的繁殖情况及死亡规律,豚鹿血清中的部分矿物质元素及维生素,以及豚鹿死亡个体的器官组织进行了切片分析。结果发现天气寒冷及母体的弃子行为是引起幼子死亡的一个重要因素,肺炎是导致豚鹿幼体死亡的直接原因,矿物质元素铜（Cu）、硒（Se）及维生素E测定值偏低与豚鹿繁殖成活率也有一定的关系。为切实提高豚鹿繁殖成活率应适当改善现有的环境条件,采取防寒保暖措施;加强对豚鹿产子期间的观察,及时发现弃子幼体施行人工辅助育幼;加强消毒工作,保持环境的清洁卫生;加强营养研究,适当调整饲料矿物质及维生素水平。 相似文献
11.
12.
红腹滨鹬和东方行乌均属鹆形目的小型水鸟,在吉林省一直没有记录。2009年5月在莫莫格国家级自然保护区大岗林场记录到了东方鹆,还记录到了卵与巢。8月在查干南泡记录到了红腹滨鹬。填补了这2种鸟在吉林省分布的空白。 相似文献
13.
I G Horak K M MacIvor T N Petney V De Vos 《The Onderstepoort journal of veterinary research》1987,54(3):397-403
Large numbers of birds, wild mammals and domestic stock from a variety of localities within the Republic of South Africa were examined for infestation with the ixodid ticks Amblyomma hebraeum and Amblyomma marmoreum. Every warthog (Phacochoerus aethiopicus), Burchell's zebra (Equus burchelli), impala (Aepyceros melampus) and kudu (Tragelaphus strepsiceros) from the Kruger National Park in the north-eastern Transvaal Lowveld was infested with A. hebraeum. In the eastern Cape Province every helmeted guinea fowl (Numida meleagris), scrub hare (Lepus saxatilis) and kudu from the Andries Vosloo Kudu Reserve; all but 1 of the 22 domestic cattle examined on the farm "Bucklands"; and all Angora goats plus nearly all Boer goats examined on the farm "Brakhill" were infested with this tick. Most animals examined appeared to be good hosts of the immature stages, and the larger the host species the greater the chances of it harbouring large numbers of adult ticks. The largest animals examined, such as eland, buffalo, giraffe and rhinoceros, harboured very large numbers of adult A. hebraeum. No adult A. marmoreum was recovered from any host. However, 50% or more of helmeted guinea fowl and kudu from the Andries Vosloo Kudu Reserve; helmeted guinea fowl, scrub hares and eland (Taurotragus oryx) from the Mountain Zebra National Park; helmeted guinea fowl, kudu, domestic sheep, goats and cattle on the farm "Bucklands", and caracal (Felis caracal) from the Cradock and Southwell areas of the eastern Cape Province were infested with immature A. marmoreum. In the Bontebok National Park in the south-western Cape Province more than 35% of scrub hares, vaal ribbok (Pelea capreolus) and bontebok (Damaliscus dorcas dorcas) were infested with immature ticks. 相似文献
14.
Tengwei SU Guofa CUI Zihong MAN Wentao LI Zhihao HUANG Jinfeng CHEN Minyan ZHAO 《Integrative zoology》2023,18(4):688-703
The prevention and control of invasive of alien species is an important work for nature reserves. This study analyzes the development trend of the alien species sika deer in Liancheng National Nature Reserve. From October 2019 to June 2020, 3523 valid photos and videos of terrestrial animals were acquired from 130 camera traps, and sika deer were recorded in 21 photos from 13 traps. The survival of the sika deer population was investigated by means of morphological identification, population structure analysis, species relative abundance indices, and species spatial association analysis. A total of 13 sika deer individuals were identified by camera trapping, including two kids and three subadults representing the reproductive capacity of the population. Spatially, sika deer is not associated with any local species and was outside the spatial association network of terrestrial animals in Liancheng National Nature Reserve, indicating that the sika deer population has not been integrated into the local community and has failed to perform its ecological function. It is worth noting that the reserve provides habitat suitable for sika deer and that the population has adequate reproductive capacity. Due to the lack of large apex predators in the reserve, the population size of ungulates such as sika deer, red deer, and Siberian roe deer may expand and lead to population outbreaks and the associated problems for the ecosystem. To restore large- and medium-sized carnivores and avoid the population outbreak of the species, the present challenges require immediate attention in Liancheng National Nature Reserve. 相似文献
15.
Noninvasive genetics provides insights into the population size and genetic diversity of an Amur tiger population in China 总被引：1，自引：0，他引：1 
下载免费PDF全文
下载免费PDF全文 Understanding population size and genetic diversity is critical for effective conservation of endangered species. The Amur tiger (Panthera tigris altaica) is the largest felid and a flagship species for wildlife conservation. Due to habitat loss and human activities, available habitat and population size are continuously shrinking. However, little is known about the true population size and genetic diversity of wild tiger populations in China. In this study, we collected 55 fecal samples and 1 hair sample to investigate the population size and genetic diversity of wild Amur tigers in Hunchun National Nature Reserve, Jilin Province, China. From the samples, we determined that 23 fecal samples and 1 hair sample were from 7 Amur tigers: 2 males, 4 females and 1 individual of unknown sex. Interestingly, 2 fecal samples that were presumed to be from tigers were from Amur leopards, highlighting the significant advantages of noninvasive genetics over traditional methods in studying rare and elusive animals. Analyses from this sample suggested that the genetic diversity of wild Amur tigers is much lower than that of Bengal tigers, consistent with previous findings. Furthermore, the genetic diversity of this Hunchun population in China was lower than that of the adjoining subpopulation in southwest Primorye Russia, likely due to sampling bias. Considering the small population size and relatively low genetic diversity, it is urgent to protect this endangered local subpopulation in China. 相似文献
16.
黑龙江老爷岭东北虎国家级自然保护区土地利用与景观格局变化研究 总被引：1，自引：0，他引：1
土地利用和景观格局变化研究是自然保护区制定管理和保护规划的重要依据。本研究以黑龙江老爷岭东北虎国家级自然保护区1999—2019年3期的土地利用数据为基础,利用动态度与转移矩阵模型对该区的土地利用变化进行分析;选择斑块数量和香农多样性等景观指数对其景观格局变化进行研究。结果表明,林地是老爷岭保护区主要的土地利用类型,约占自然保护区总面积的95%,且1999—2019年呈稳定趋势(K=-0.017)。从景观格局变化来看,老爷岭保护区的景观呈破碎化趋势,其中斑块数量和香农多样性指数变化最大。从时间跨度来看,1999—2009年是老爷岭保护区土地利用和景观格局变化的主要时段,自2009年后老爷岭保护区建立,保护区内的土地利用动态度指数和景观破碎化程度均在降低,这说明老爷岭保护区成立后,随着管理和保护力度的加大,保护区内的林地得到了一定程度的恢复,景观破碎化程度得到了有效改善。 相似文献
17.
Marais HJ Nel P Bertschinger HJ Schoeman JP Zimmerman D 《Journal of the South African Veterinary Association》2007,78(3):145-148
There are no reports in the literature describing any tumours, and specifically sarcoids, in zebras. The equine sarcoid, a locally aggressive, fibroblastic skin tumour, is the most common dermatological neoplasm reported in horses. The Cape mountain zebra (CMZ) has been described as one of the most vulnerable mammals in South Africa with current populations existing in isolated units. All South African CMZ are descendants from no more than 30 individual animals originating from 3 populations, namely the Mountain Zebra National Park, and Kammanassie and Gamka Mountain Nature Reserves near Cradock. The possibility therefore exists that the existing populations arose from a very small gene pool and that they are considerably inbred. A reduction in major histocompatibility complex diversity due to genetic bottlenecks and subsequent inbreeding probably contributed to uniform population sensitivity and the subsequent development of sarcoid in two CMZ populations, namely in the Bontebok National Park and Gariep Nature Reserve. The entire population of CMZ in the Bontebok National Park was observed and sampled during 2002 to document the prevalence and body distribution of sarcoids. During the same year, a comparative study was carried out on an outbred population of Burchell's zebra in the Kruger National Park. The prevalence in CMZ in the Bontebok National Park was 53 %, while the Burchell's zebra in Kruger National Park had a prevalence of 1.9 %. The most common sites for sarcoid in CMZ were the ventral abdomen and limbs. Prevalence of sarcoids in horses recorded in the literature varies between 0.5 % and 2 %. The Gariep Nature Reserve recently reported a prevalence of almost 25 % in CMZ in the reserve. 相似文献
18.
廖晏如周晓亮朱冰润李晓民 《野生动物》2014,(1):95-98
黑龙江洪河国家级自然保护区位于中国三江平原东北部。保护区内植被保存原始,为白枕鹤提供着良好的繁殖和栖息环境。2011年6～7月,对白枕鹤夏季行为进行了观察,结果表明白枕鹤在夏季行为具有很强的规律性,以频率论,依次是觅食54．67％、行走24．67％、警戒8．44％、静栖7．11％、理羽4．78％、其他0．33％。通过数据分析对白枕鹤在不同天气的行为比例进行了对比,阴雨（小雨）和晴天对白枕鹤的行为影响不大。通过对白枕鹤的春夏季各行为对比研究,发现自枕鹤行为也有季节性的不同。 相似文献
19.
中国麋鹿种群发展现状及其研究进展 总被引：1，自引：0，他引：1
麋鹿(Elaphurus davidianus)是国家Ⅰ级重点保护动物,为中国特有种。由于人类的猎捕和环境的变迁,在1900年左右该种群在中国基本灭绝。麋鹿重引入是中国第一个重大物种重引入项目,目前已经建立了北京南海子麋鹿苑、江苏大丰麋鹿国家级自然保护区和湖北石首麋鹿国家级自然保护区,分别代表了中国麋鹿的人工圈养、半人工圈养和自然放养3种方式。作者从麋鹿的生物学特征、生境、种群、遗传繁殖、饲养管理及药用价值等方面进行了归纳分析,详细阐述了中国麋鹿种群发展现状及其研究方面取得的成果,为促进麋鹿种群的健康繁衍和保护提供理论依据。 相似文献