Results 21 to 30 of about 961,518 (157)
麝鼠(Ondatra zibethicus)是一种珍贵的毛皮动物和香料动物,在繁殖季节能分泌麝鼠香,而其香腺泌香机制尚不清楚。TNFRSF13C(BAFF受体)和TNFRSF4(OX40受体)基因是TNF受体超家族的成员,参与免疫调节、炎症、凋亡,还与自身免疫病和多种器官的形成有关。本研究通过RT-qPCR技术检测繁殖期与非繁殖期麝鼠的心、肝、肺、肾、睾丸、肌肉及香腺中TNFRSF13C和TNFRSF4基因的转录水平,结果显示两者在繁殖期和非繁殖期7个组织中均有表达,在繁殖期麝鼠的心、肝、肺、肾、睾丸 ...
廖光珍, 毕建鑫, 张钰, 白素英
doaj
Using radiotelemetry, we found that the movement and home range of the endangered Sacalia bealei varied significantly across reproductive classes and seasons, with males exhibiting greater movement than females during wet and mating seasons. The species exhibits strong aquatic dependence, favoring deep pools interspaced among riffle‐pool sequences ...
Wing Sing Chan +3 more
wiley +1 more source
This study investigates the breeding success of the critically endangered White‐rumped Vulture in Khaireni Community Forest, and examines local knowledge and perceptions toward its conservation. We found that 71% of active nests were successful, with breeding success significantly influenced by the proximity to carcass deposition sites.
Siddhartha Regmi +4 more
wiley +1 more source
When and why to give shorebirds a head start
Abstract Headstarting is a translocation technique involving the hatching or rearing of wild eggs or young in captivity and the release of those individuals back to the wild at or before independence. It has been trialed as a conservation intervention for shorebirds over recent decades to improve the population trend of target populations by increasing
Lynda Donaldson +4 more
wiley +1 more source
Genomics‐informed management of ex situ populations
Abstract The European Association of Zoos and Aquariums (EAZA) manages insurance populations for hundreds of species through its EAZA ex situ programs (EEPs). EEPs help safeguard against extinction in the wild and provide source populations for genetic rescue programs.
Cock van Oosterhout +8 more
wiley +1 more source
Habitat and spatial trends of U.K. wintering waterbird populations over 50 years
Abstract The United Kingdom is an important wintering ground for millions of waterbirds. Most U.K. wintering waterbird populations increased between 1970 and the mid‐1990s, but declined thereafter. We examined U.K. population indices in 46 wintering waterbird species in two 25‐year periods, 1970–1994 and 1995–2019, to identify which waterbird groups ...
Blaise Martay +8 more
wiley +1 more source
2001-2003年,在山西芦芽山自然保护区对14窝鹪鹩(Troglodytes troglodytes)的繁殖生态进行了观察,该鸟在本区3月份种群遇见率为2.27只/km,9月后为3.27只/km,繁殖后比繁殖前增长44.1%;繁殖期为4-8月,最早营巢期为4月22日,营巢期7d,窝卵数3-5枚,孵卵期13-14d,年繁殖力1.8只,孵化率为85.1%,成活率86.96%,巢内育雏14- 15d,巢外育雏7-8d。
王建萍 +3 more
doaj
We developed an effective ex‐situ conservation approach for an endangered orchid species, Dendrobium sinominutiflorum. A compatible fungal strain Tulasnella sp. was obtained by using in‐situ seed baiting technique. The Symbiotic germination with Tulasnella sp. significantly promotes seed germination and seedling growth.
Han‐Xiao Huang +6 more
wiley +1 more source
采用瞬时取样法对圈养的2对蓝鹇和2组白鹇繁殖期行为的时间节律进行了初步研究,分别选择蓝鹇和白鹇繁殖行为较为明显的时期,各记录15 d,即蓝鹇为2008年3月30日~4月15日(12、13日因故未观察),白鹇为2008年4月16~30日;每天观察12 h,即从7:00~19:00。结果表明第一组蓝鹇和白鹇的繁殖行为都明显少于第二组蓝鹇和白鹇,蓝鹇和白鹇的繁殖行为的发生次数随日期出现波动,两物种繁殖行为的高峰多在早晚时段。蓝鹇和白鹇的产蛋周期分别为3~4 d和1~3 d ...
刘选珍 +5 more
doaj
First confirmed breeding of the Brown Hornbill in China, documented through cooperative feeding in Shangyong Protected Area. ABSTRACT The Brown Hornbill (Anorrhinus austeni), a Near Threatened frugivore, reaches the northern edge of its distribution in southern Yunnan, China, yet breeding had not been previously documented with site‐attributed nests in
Junsong Li +8 more
wiley +1 more source

