Results 11 to 20 of about 706,112 (165)
野生动物学报, 2009 根据野外实地考察,绘制帕米尔高原马可波罗盘羊的分布图。我国马可波罗盘羊主要分布在塔什库尔干自然保护区和萨雷阔勒岭。采用截线取样法对马可波罗盘羊种群数量进行研究,截至2001年,盘羊种群数量为1 650～2 150只;近年我国马可波罗盘羊种群数量超过3 000只。对37群949只盘羊的数据进行分析,盘羊的性比为♂:♀=1:3,群体大小平均为26.4只,最大雌性群为156只。由于山体庞大、地势开阔、冬季无人,在帕米尔高原,盘羊经常结成大群。40～50只以上的大群占所有观察个体数的50.3%,大群除了混合群外,
余玉群 +5 more
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野生动物学报, 1989 本文根据1987—1988年在西藏的野外调查,利用截线法,以半正态分布作为探测概率密度,估计出了整个西藏境内的藏狐种群数量。计算结果得最高分布密度达0.9175只/km2,最低及0.003只0/km2（每1.1—333.3km2 有1只狐）。按此密度,以62万km2 栖息面积计算得种群数量为3.7125±10414只（α=0.2）。本文还讨论了关于截线法用于藏狐种群数量调查的几个实际问题.如截线的布置,调查精度、栖息面积的确定等。文章最后呼吁应立即禁止猎捕藏狐、加强保护。
朴仁珠
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野生动物学报, 2008 2007年2～6月运用路线法在董寨国家级自然保护区对常见鹭科鸟类的种群数量进行调查,结果显示:在保护区内常见鹭科鸟类的最大种群数量为4 274±92只,其中池鹭1949±41只,小白鹭1 098±25只,牛背鹭994±19只,夜鹭243±12只。
溪波 +4 more
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Wildlife Letters, EarlyView.In the winter of 2021/2022, a winter track survey revealed 43–46 tigers (without cubs) in 5.4 thousand km2 of suitable habitats in the Southwest Primorsky Province of Russia. In the same period, a network of camera traps registered 54 adult/subadult tigers here.
Yury Darman, Dina Matiukhina
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Wildlife Letters, EarlyView.Using a 3‐year, broad‐scale camera‐trap network in western Kansas, we tested whether coyotes and American badgers exhibit spatiotemporal patterns consistent with coordinated hunting. Despite high diel activity overlap, detection‐conditioned co‐detections occurred far less frequently than expected under independence, and short‐term temporal sequencing ...
Ty J. Werdel +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
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Wildlife Letters, EarlyView.Human‐caused leopard deaths in Sri Lanka averaged 9.65 ± 4.5 records year−1 over 17 years (2008–2024; n = 164), with records highly clustered in the central highland mosaic ecosystem. Mortality was dominated by adult males and driven primarily by snaring in plantation landscapes, and indicating an increase approximately 0.7–0.8 deaths per year.
Sanjaya Weerakkody +11 more
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Wildlife Letters, EarlyView.Reported annual per‐capita harvest of muskrats (PCHM) decreased as wetland complexity (total number of wetland patches) decreased in 13 state and federal wetland areas in the Midwest, USA. Our results support the hypothesis that regional‐scale declines in the abundance of muskrats are likely associated with the losses to wetland habitats throughout the
Tim L. Hiller +5 more
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Looking at Us Through Their Eyes. The Analytical Process from Ethnographic Perspectives1
Journal of Analytical Psychology, EarlyView.Abstract This article looks at the analytical situation through the Others’ eyes—through examples from contemporary ethnographies of foreign cultures. It discusses the following issues: a) The analogy between the ontological worlds of the dead, ghosts, animals and dreams in “primitive populations” and the analytical psychological descriptions of the ...
Stefano Carta
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Inferring alternative ecosystem states with field survey data
Methods in Ecology and Evolution, EarlyView.Abstract Many ecosystems potentially exhibit alternative stable states, where distinct states can coexist under identical environmental conditions. While simulation models have generated key hypotheses in alternative stable states theory, they often rely on scale‐free parameters disconnected from real ecosystems.
Ning Chen +10 more
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