Results 41 to 50 of about 34,295 (186)
Wildlife Letters, EarlyView.We used spatially explicit capture‐recapture to estimate jaguar densities in a private reserve in the Colombian Llanos and quantified land cover change in and around the reserve from 2014 to 2024. Densities increased 22% since 2014, while disturbed land cover increased by 39%–54% around the reserve depending on buffer distance. Our study indicates that
Valeria Boron +7 more
wiley +1 more source
智能科学与技术学报, 2020 六足机器人拥有多个冗余自由度，适用于复杂的非结构环境。离散环境作为非结构环境的一个苛刻特例，需要六足机器人具备更加高效可靠的运动策略。以平面随机梅花桩为例，设定随机起始点与目标区域，利用深度强化学习算法进行训练，并得到六足机器人在平面梅花桩环境中的运动策略。为了加快训练进程，采用具有优先经验重放机制的深度确定性策略梯度算法。最后在真实环境中进行验证，实验结果表明，所规划的运动策略能让六足机器人在平面梅花桩环境中高效平稳地从起始点运动到目标区域。为六足机器人在真实离散环境中的精确运动规划奠定了基础。
傅汇乔 +4 more
doaj
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
wiley +1 more source
Wildlife Letters, EarlyView.We used automated behavioral response systems (ABRs) to assess invasive wild pig (Sus scrofa) behavioral response to four auditory playbacks: humans, coyote vocalizations (Canis latrans), pigs in distress, and barred owl (Strix varia) calls. Wild pigs had a significant flight response to human playbacks, but 68% of pigs did not flee.
Justine L. Smith +2 more
wiley +1 more source
Wildlife Letters, EarlyView.The study explores how beavers (Castor spp.) affect endangered freshwater pearl mussels (Margaritifera margaritifera) in European rivers. Beaver dams can harm small, fragmented mussel populations by reducing flow, increasing sediment, and potentially limiting host fish movement, while larger populations may benefit from improved bed stability and ...
Louise Lavictoire +2 more
wiley +1 more source
Wildlife Letters, EarlyView.We staged dyadic interaction trials between two kangaroo rat species threatened by habitat loss to test whether one species dominates in direct interactions in the field. We found that Stephens’ kangaroo rat (Dipodomys stephensi) residents and intruders were dominant over Dulzura kangaroo rat (Dipodomys simulans). These results suggest that D. simulans
Janine N. Straughan +2 more
wiley +1 more source
A behavior analysis of evolutionary game under three asymmetric parties(三方非对称进化博弈行为分析)
Zhejiang Daxue xuebao. Lixue ban, 2013 随着政府涉入领域以及社会合作谈判领域的增多，三方非对称进化博弈越来越多地出现在现实生活中.但目前国内外对该类型的进化博弈研究甚少，这显然不利于正确地解释和预测该类型的博弈行为.基于此，运用进化博弈论中的“复制动态”思想，对三方非对称的2×2×2进化博弈进行了渐进稳定性分析，完整地给出了其定性行为的等价定量分类和各参与主体不同情况下的稳定性策略，并且用三维立体图演示了不同策略组合的渐进趋势，从而为研究现实生活中该类型的博弈行为提供了一种理论依据.
WEIFang-fang(魏芳芳) +1 more
doaj +1 more source
Wildlife Letters, EarlyView.FoxWatch is a user‐friendly analytical workflow that converts camera‐trap detections into dependable estimates of fox abundance. The user‐friendly Shiny R app standardizes data preparation, employs Simultaneous‐Count Models modeling, and displays uncertainty in clear, comprehensible outputs. By connecting field monitoring with decision‐making, FoxWatch
Duminda S. B. Dissanayake +1 more
wiley +1 more source
Plant invasion in mountain ecosystems reduces soil micro‐food web complexity at higher elevations
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Anthropogenic activities have accelerated plant invasions in mountain ecosystems, impacting the structure and functions of native plant communities. Changes in above‐ground vegetation can drive shifts in below‐ground biota, yet the effects of plant invasions on soil ...
Runjie Jiao +8 more
wiley +1 more source
PARTY‐STATE URBANISM: Coevolution of Local State Capacity and Strategic Alliances in Shenzhen
International Journal of Urban and Regional Research, EarlyView.Abstract What is distinct about Chinese urban governance? Classic theories predict that when the central state retreats from resource allocation, capacity‐strained local governments must form alliances with non‐state actors, thereby diluting state power. In China, however, state power remains dominant despite decentralization.
Yunhan Wen
wiley +1 more source