Results 11 to 20 of about 1,265 (155)
野生动物学报, 2009 2004～2005年,对人工饲养的长鬣蜥繁殖行为和生态习性进行了研究,结果表明:3～7月为长鬣蜥的繁殖期,繁殖行为主要表现为发情求偶、交配和产卵,5～6月为产卵高峰期,每条成熟的雌蜥年产卵2～3窝,平均窝卵数12（7～18）枚;雌蜥每窝产卵间隔33～45 d不等;平均单卵重3.06（2.80～3.50）g;卵径2.63 cm×1.18cm。在自然孵化温度和90%～95%的湿度下孵化期为60～98 d,孵化率52.34%,长鬣蜥幼体初生个体重2.50 g,体全长（头体+尾）14（4+10）cm。
侯方晖, 苏力, 邹洁建
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Diversidad de orquídeas en la isla de Hainan en China: distribución y conservación [PDF]
, 2015 Orchidaceae are widely distributed in many terrestrial ecosystems except for polar and desert areas and constitute a “flagship group” in biological conservation.
He, R. X. +3 more
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Wildlife Letters, EarlyView.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
, 2008 欧夜鹰(Caprimulgus europaeus)属夜行性鸟类。广泛分布于新疆荒漠地区,如乌鲁木齐、阿勒泰、克拉玛依、昌吉州、吐鲁番、哈密、阿克苏、库尔勒、喀什等地区(Ma,2001 ...
张新民, 梅宇, 胡宝文, 马鸣
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Progress in the studies of vivipary in mangrove plants [PDF]
, 2016 【中文摘要】植物胎生是指有性繁殖产生的后代在母体上直接萌发的现象, 在红树植物中最为常见。红树植物生长在热带亚热带海岸潮间带, 耐受高盐、高温、淹水缺氧和海浪冲击等复杂环境。胎生被认为是红树植物对这种特殊生境的重要适应方式。 该文从形态发育、生理生化、分子水平、生态适应4个层次讨论红树植物胎生现象对复杂生境的适应性, 并指出现有研究存 在的不足, 对将来的研究方向进行了展望。与非胎生胚胎发育相比, 红树植物胎生是一个遗传的程序, 在进化过程中形成了 一些特殊的结构 ...
Cai Ling-ling +11 more
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Conservation Biology, EarlyView.Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge +2 more
wiley +1 more source
Anatomical study of nectar gland development and changes in sugar content in Trifolium ambiguum Bieb. [PDF]
[Objective] Trifolium ambiguum Bieb. is an excellent nectar source plant, and understanding the morphological characteristics, tissue structure, and development are critical for proper utilization of T . ambiguum resources. [Methods] Nectar glands of T
CHANG Yadi +4 more
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Advancing conservation breeding programs for marine invertebrates
Conservation Biology, EarlyView.Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam +3 more
wiley +1 more source
Conservation Biology, EarlyView.Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans +2 more
wiley +1 more source
Observation on Some Activities of Reproduction in Little Egrets (Egretta garzetta) at Jiyu Island in Xiamen [PDF]
, 2003 于 2 0 0 1年 3～ 7月采用颜色标记法 ,记录厦门白鹭保护区内鸡屿岛白鹭 (Egrettagarzetta)卵产出和孵出的顺序和时间 ,并称重卵和雏鸟。有 91 4 %的窝卵数为 4～ 5枚 ,产卵期 7 0± 1 9d ,出壳期 4 2± 1 4d ;卵孵化时间与产卵顺序显著负相关 ;不同产出顺序卵重无差异 ;不同孵出顺序雏鸟早期 (≤ 5d)发育无差异 ,之后差异显著 ,第 4出壳的雏鸟发育水平和成活率较低 ,而第 5出壳的雏鸟最低 ;亲鸟在产卵期的孵化是非连续的 ,而产卵结束后相对连续 ...
胡慧娟 +3 more
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