Results 21 to 30 of about 598,055 (100)

Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau

open access: yesPeople and Nature, Volume 8, Issue 7, Page 2186-2199, July 2026.
Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley   +1 more source

Burrow‐Based Monitoring of Chinese Pangolin (Manis pentadactyla) Reveals Importance of Core Natural Habitat in Hong Kong 中華穿山甲 (Manis pentadactyla)洞穴監測揭示香港內陸郊野地帶的重要性

open access: yesIntegrative Conservation, Volume 5, Issue 2, Page 205-216, June 2026.
Relatively little is known about the distribution or habitat requirements of Hong Kong's population of the Chinese pangolin. Between 2018 and 2021 we searched for pangolin burrows and deployed camera traps on the burrows. We then analyzed habitat suitability at multiple scales to determine the factors that are key in driving pangolin distributions in ...
Anna Goldman   +9 more
wiley   +1 more source

基于可行模型集合方法的多模型切换控制

open access: yes, 2004
对含参数跳变的一类具有有界干扰的多输入多输出系统,为改善系统的瞬态响应性能,采用由多个固定模型和两个自适应模型组成的多模型,并引入切换指标函数构成多模型切换控制器.为克服多模型方法计算量大的缺点,采用可行模型集合方法,给出了可行模型应满足的必要条件.应用这一必要条件,对系统的多个模型进行检验,可快速缩小模型可行集合的范围,再通过切换指标函数,在可行模型集合中选择正确的控制器,从而在不降低系统响应性能的前提下 ...
王建, 张珩
core   +1 more source

Harnessing social media data to track species range shifts

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Biodiversity monitoring programs and citizen science data remain heavily biased toward the Global North. Especially in megadiverse countries with limited biodiversity records, incorporating social media data can help address existing data gaps.
Shawan Chowdhury   +15 more
wiley   +1 more source

东洞庭湖湿地优势鹬类物种栖息地适宜性研究

open access: yes野生动物学报, 2017
鸻鹬类涉禽是目前比较珍稀的一类迁徙鸟类。预测迁徙鸟类的栖息地适宜性与其他物种不完全相同,人类影响、土地类型等因素在其中起到主导作用。本文利用Maxent模型,结合2006~2013年东洞庭湖区鸟类调查数据和环境影响因子,对东洞庭湖区3种优势种鸻鹬类涉禽的栖息地适宜性进行分析。结果表明:环境因子的选择在栖息地适宜性模型建立过程中至关重要,对于东洞庭湖的候鸟来说,土地利用是影响其栖息地质量的重要环境因子; 模型的评价效果优秀; 2006~2009年东洞庭湖区适宜性区域约占总面积的25%,2010 ...
刘 伟 孙富云 高 翔
doaj  

气候变化对中国梅花鹿潜在栖息地影响

open access: yes野生动物学报, 2021
研究表明,气候变化将会使生物多样性降低甚至是物种灭绝。研究气候变化对物种栖息地的影响,对未来研究物种多样性和保护生态系统功能完整性提供实践意义。以梅花鹿(Cervus nippon)为研究对象,将23个环境因子通过去相关性后得到8个环境因子,利用最大熵(MaxEnt)模型模拟了梅花鹿基准气候条件下在中国潜在生境分布,并预测了ssp245和ssp585两种气候变化情景下2021—2040年(2030s)、2041—2060年(2050s)、2061—2080年(2070s)梅花鹿潜在分布。23个环境因子中,
刘策 张日 杜海荣 孙悦 袁子奥 于晶晶 张明海
doaj  

工程爆破的模型试验与模型律

open access: yes, 1995
本文在探讨工程爆破物理过程的基础上,分析了在何种条件下几何相似律与能量准则成立的条件。对硐室爆破、深孔爆破及水下爆破都分别作出了相应的爆破模型律 ...
杨振声
core   +1 more source

Identification of Priority Areas for Conservation of Threatened Agamid Lizards of Sri Lanka Using Species Distribution Modeling 斯里兰卡濒危蜥蜴 (鬣蜥科) 保护优先区域的识别:基于物种分布模型的研究

open access: yesIntegrative Conservation, Volume 4, Issue 2, Page 188-204, June 2025.
We assessed the distribution of 14 threatened agamid lizard species using Species Distribution Modeling to identify hotspots for these species' conservation. Based on the results, high‐priority areas of threatened agamids were projected to occur specially in the wet zone.
Iresha Wijerathne   +10 more
wiley   +1 more source

Simulating diversity hotspots of wild relatives of aquatic vegetable crops in China(中国水生蔬菜作物野生近缘种多样性热点区域模拟)

open access: yes浙江大学学报. 农业与生命科学版
Aquatic vegetable crops are a unique group of domesticated crops from the farming civilization of the Yangtze River Basin, and their wild relatives are valuable genetic resources for breeding and variety improvement.
ZHANG Lidong(张立冬)   +5 more
doaj   +1 more source

雁型断裂的分形模型和能量耗散

open access: yes, 1994
现场和实验室观察表明;在断裂区内的雁型裂纹具有一个Riedel几何结构。本文应用剪切裂纹位错堆积(Pile-up)模型;描述了雁型裂纹形成的拉破坏机理;建立了雁型裂纹的分形模型来模拟Riedel几何结构。根据这个模型;可以直接量测出现场和实验中出现的雁型裂纹的分形维数。在此基础上;应用分形损伤演化模型;推导出了雁型裂纹的能量耗散 ...
谢和平
core   +1 more source

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