Results 11 to 20 of about 74,430 (162)

In vitro culture, cryopreservation, and field reintroduction of the endangered Mingan thistle. [PDF]

open access: yesConserv Biol
Abstract Current plant conservation efforts are hindered by, for example, poor seed germination, low viability, and insufficient propagation and preservation technologies. To address these problems, we devised an approach to plant conservation that integrates conservation, preservation, and restoration (CPR), which uses advanced in vitro techniques. We
Shukla MR   +4 more
europepmc   +2 more sources

浅谈繁殖猴群的管理

open access: yes野生动物学报, 1985
近二十年来,灵长类养殖业迅速发展,遍及世界各地的养猴场采用了多种形式进行种群繁殖,其中有自然保护区人工驯化繁殖、天然岛半放养繁殖、猴园繁殖和小群笼养繁殖等。尽管各种繁殖方式的管理细则有所差别,但原则是共同的。现以猕猴(Macaca mulatta)小群笼养繁殖(即一个笼舍养1♂与5—8♀常年同居配种)为例,现将管理体会介绍于后。繁殖猴群的管理大致可分为种猴选择、
曾中兴, 陈元霖, 白寿昌
doaj   +2 more sources

Extent of threats to marine fish from the online aquarium trade in the United States. [PDF]

open access: yesConserv Biol
The global marine aquarium hobby is a multibillion‐dollar industry, largely driven by demand from the United States. Much of this trade occurs online. We web scraped 4 major US‐based e‐commerce platforms selling marine aquarium fish to determine the retail price and source (wild capture, aquaculture, or both) of 13 families of ray‐finned marine fish ...
Lin B   +6 more
europepmc   +2 more sources

鸳鸯的人工繁殖

open access: yes野生动物学报, 1995
鸳鸯的人工繁殖沈庆云,吴福海(柳浪公园百鸟天堂)(杭州动物园)鸳鸯(Aixgalericulata)是国家重点保护的珍贵鸟类。主要在我国东北部繁殖,偶见有在我国南方自然繁殖的报导。而鸳鸯的人工繁殖,却未见报端。杭州柳浪公园1992年首次获得鸳鸯人工繁...
沈庆云, 吴福海
doaj   +2 more sources

亚洲象的繁殖观察

open access: yes野生动物学报, 2010
济南动物园所饲养的亚洲象(Elephas maximus)于1997年首次繁殖成功,现已繁殖3胎3仔,幼象生长发育正常。在繁殖过程中,对亚洲象的发情、交配、妊娠、分娩、幼象发育等进行了详细观察,积累了亚洲象繁殖的资料和经验。
谢绪昌   +4 more
doaj   +2 more sources

动物繁殖趣闻

open access: yes野生动物学报, 2005
动物是如何繁殖后代的?这个神秘而有趣的问题一直吸引人们不断去探索,从无性繁殖到有性繁殖,从鸥鸟孵卵到羚牛哺乳;再从孔雀开屏到百鸟争鸣,从盘羊顶角到猿猴争霸, 林林总总,不一而足。可以说,动物的繁殖行为真是五花八门,甚至是匪夷所思。每种动物都有自己的方式来保证种群的繁衍,而有些动物更有其独特的"绝招",现撷取一二,以飨读者。
胡祚均
doaj   +2 more sources

灰鹤的人工繁殖

open access: yes野生动物学报, 2000
灰鹤(Grus grus)属国家的二级保护动物,灰鹤的人工繁殖是增加灰鹤数量的重要措施,开展人工繁殖是保护该物种迁地保护(off-siteconservation)的重要途径,笔者于1994~1996年对灰鹤人工繁殖进行了专题研究,现将结果报道如下.
刘淑华, 白晓洁, 梁卫峰, 杜才
doaj   +2 more sources

笼养斑嘴环企鹅繁殖行为研究

open access: yes野生动物学报, 2022
以上海动物园繁殖场笼养的5个繁殖对斑嘴环企鹅(Spheniscus demersus)为对象,采用焦点动物取样法和瞬时扫描法对其繁殖行为进行观察。结果表明:斑嘴环企鹅繁殖期亲和、警戒、护巢、打斗和修饰行为表现明显,与非繁殖期差异极显著 ...
王晶晶
doaj  

圈养古巴火烈鸟的繁殖技术

open access: yes野生动物学报, 2021
2015—2020年,以福州动物园33只古巴火烈鸟(Phoenicopterus ruber)为研究对象,通过日常饲养管理总结繁殖经验,并结合监控视频,采用随机观察、目标跟踪法对古巴火烈鸟的繁殖行为、繁殖年龄、繁殖季节、配对模式、发情与交配、筑巢、产卵与孵化、出壳与育雏等方面进行观察研究。结果表明:古巴火烈鸟4—6岁开始产卵繁殖,配对模式属一夫一妻制,偶有3鸟繁殖组和4鸟繁殖组;在福州地区,降水量大和气候温暖的2—4月开始发情交配,3—7月产卵,产卵高峰在6月,每窝1枚卵,每年产1—3枚,孵化期为28 ...
高喜凤
doaj  

Symbiotic Germination Technique of an Endangered Epiphytic Orchid Dendrobium sinominutiflorum: A Promising Conservation Application 濒危附生兰科植物勐海石斛 (Dendrobium sinominutiflorum) 的共生萌发技术:一种具有应用前景的保护策略

open access: yesIntegrative Conservation, EarlyView.
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

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