Results 11 to 20 of about 45,553 (198)
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu +5 more
wiley +1 more source
Local Ecological Knowledge Reveals the Distribution of Cryptic Nocturnal Wildlife
Many nocturnal animals are difficult to study because they are rarely seen, including nocturnal primates, galagos and pottos, in West Africa. Working with over 600 people in 52 villages in southern Guinea‐Bissau, we found that communities frequently recognized galagos by their red eyeshine and distinctive calls, while pottos were not known.
Chloe Chesney +6 more
wiley +1 more source
Studies on the role of PGE2 in the reproduction of Small Abalone,Haliotis diversicolor [PDF]
杂色鲍(Haliotisdiversicolor),又称九孔鲍,是我国福建南部和广东等沿海地区鲍养殖的重要品种,商业价值较高,杂色鲍繁殖调控对于其人工育苗和育种都有重要意义,但目前有关鲍的繁殖分子机制研究却十分有限,尤其是对鲍的产卵和排精机制了解更少。本文通过组织学、分子生物学和生物化学方法对杂色鲍的前列腺素E2(PGE2)、PGE2合成相关的三种酶基因和EP4受体进行了研究,并结合生态实验讨论了PGE2在杂色鲍繁殖中的作用。主要结果如下: 1.PGE2在杂色鲍繁殖中功能研究 ...
李玲玲
core
Although once abundant across its range, gray foxes (Urocyon cinereoargenteus) are purportedly declining. While range maps indicate that gray fox potentially occur throughout the central United States, contemporary distribution maps are needed. We developed a Habitat Suitability Model for six states, leveraging gray fox presence data in an ensemble ...
Daniel J. Benson +4 more
wiley +1 more source
Study on Characteristics of Quantum Dot Fiber laser and Photonic Crystal Fiber Nonlinear Lasers [PDF]
光纤激光器因具备结构紧凑、光束质量好、高效率、高功率、高可靠性等优点被认为是最具潜力的激光源。本文对三种光纤激光光源做了系统的研究:基于纳米晶体量子点光纤激光器、基于光子晶体光纤四波混频效应的参量振荡器、以及光子晶体光纤非线性效应超连续谱光源。相对于传统的量子点随机激光器糟糕的激光模式和糟糕的输出激光方向,首先介绍了一种新型的量子点/光纤激光器,该激光器获得了光强分布集中的平顶模式的光束特性,对量子点激光器的集成化有重要的意义。随后在目前获得的基于光子晶体光纤四波混频的中红外转换效率非常低的背景下 ...
程辉辉
core
Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
wiley +1 more source
Abstract Molecular identification of insect food webs can accurately reveal complex trophic interactions and serve as a foundation for understanding ecosystem functioning and advancing biodiversity conservation. This process typically involves DNA library construction, high‐throughput sequencing and subsequent steps, including data assembly, annotation,
Xiao‐man Zhang +9 more
wiley +1 more source
Study on restoration of benthic macrofaunal community in Xiatanwei artificial mangrove wetlands, Tong’an Bay [PDF]
红树林生态系统处于海洋与陆地的动态交界面,是我国三大海岸带生态系统之一。底栖动物(包括大型、小型和微型底栖动物)是红树林生态系统的重要组成部分,同时也是该生态系统内物质循环、能量流动中积极的消费者和转移者。关于同安湾潮间带、潮下带和红树林湿地大型底栖动物群落生态的研究已有报道,但关于同安湾人工红树林湿地大型底栖动物群落恢复、演替和功能群方面的研究稀少,且关于红树林群落边缘大型底栖动物的群落效应的研究未见报道。 本研究选取同安湾下潭尾人工红树林湿地作为研究区域 ...
颜露露
core
Abstract Prioritization in conservation is crucial for the development of efficient and effective decision‐making policies. For many decades, the importance of some species and their habitats has been assessed and applied in conservation legislation, but bats and their diurnal roosts have ofbeen overlooked.
David López‐Bosch +6 more
wiley +1 more source
从机械设计、电子控制、数学方法、计算机辅助技术和材料科学的角度,对永磁机构的研究进展进行综述、分析和展望,并提出学科交叉、综合设计的发展理念,促进永磁机构的系统化研究和发展。
朱学贵, 王毅, 罗礼全, 毛慧勇
doaj

