Results 21 to 30 of about 1,240,523 (178)
Using customs data to understand overlooked trade in non‐CITES birds between Africa and Asia
Abstract The international trade in live birds poses risks to animals, people, and biodiversity. To effectively mitigate these risks, decision‐makers require information on the volume, dynamics, and direction of trade. Despite Africa once being the largest exporter of birds by region, very little data exist on recent trade in live birds not listed on ...
Alisa Davies +4 more
wiley +1 more source
Abstract Procedural, distributional, recognitional, and epistemic justice aspects of conservation interventions are well documented in contexts where pastoralism is a key livelihood and way of life. Geospatial analyses and representations of wildlife conservation and restoration that are increasingly applied in pastoralist rangeland socioecological ...
Ryan R. Unks
wiley +1 more source
Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source
Emerging applications of large language models in ecology and conservation science
Abstract Large language models (LLMs) mark a major development in artificial intelligence, with potentially transformative implications for ecology and conservation science. Built on advanced deep‐learning architectures, these models can support a wide range of tasks. We reviewed emerging applications of LLMs, drawing on the wider scientific literature
Christos Mammides +5 more
wiley +1 more source
Uncovering correlates of decline and critical refuges for a threatened terrestrial mammal
Abstract Globally, the geographic ranges of numerous species are contracting. Identifying spatiotemporal patterns of threat impact can illuminate why species decline in some parts of their range but persist in others. We developed a correlative approach to identify species’ response thresholds and locate ecological refuge areas associated with ...
Natalya M. Maitz +5 more
wiley +1 more source
针对液体火箭发动机涡轮泵转子动态响应参数难以直接测得的问题,以实际涡轮泵转子为对象,开展转子瞬态响应仿真计算和实测振动数据提取分析。首先,采用有限元方法建立考虑支承结构参与振动的转子动特性计算模型,计算转子的稳态特性;其次,以发动机试车实测的涡轮泵启动升速曲线为基础,计算转子的瞬态响应特性,并与从实测的振动加速度数据中提取的转子动特性进行对比分析。结果表明:转子瞬态响应峰值出现的位置相比稳态响应有一定滞后,启动加速度越大,滞后越明显 ...
doaj +1 more source
本文研究了航空减速器中传动系统的动态特性,分析了各种不同结构和不同设计参数对减速器动态性能的影响,编制了计算机程序来处理各类复杂传动系统的运动微分方程,得到了一些重要的变化规律,以揭示改进减速器动态性能的各种途径。
方宗德, 沈允文, 高向群
doaj
Scientists’ warning on the global destruction of rock outcrop ecosystems
Abstract Rock outcrops are geological formations that harbor a highly specialized biota adapted to harsh environmental conditions that differ from their surrounding landscapes. They are globally distributed, especially in old, highly weathered landscapes, and can function as habitat islands containing high levels of endemism and distinct evolutionary ...
Luiza F. A. de Paula +19 more
wiley +1 more source
本文分析了压气式SF6断路器的静态与动态运动特性的区别,考虑了电弧电流对运动特性的影响,引进了电弧截面影响系数δ和电弧温度系数Ω。然后应用焓流理论求取了电弧面积,导出了负载下电气室气体密度,压力特性及断路器分闸特性计算式。最后以LW—220落地箱式SF6断路器为例进行了计算,并与试验结果作了比较。
施文耀
doaj
Psychometric framework for coexistence with large carnivores
Abstract Human–carnivore coexistence is essential for biodiversity conservation, yet measuring the attitudes and behaviors that support it remains methodologically challenging. We developed psychometric scales to assess willingness to coexist with carnivores and the underlying beliefs of this coexistence through an iterative expert elicitation process ...
Benjamin Ghasemi +14 more
wiley +1 more source

