Results 21 to 30 of about 4,642 (226)
Spatial segregation and bycatch risk as potential drivers of population trends of wandering albatrosses at South Georgia. [PDF]
Conserv BiolAbstract Spatial segregation in at‐sea distribution is frequently observed in seabirds and can have important implications for conservation and management. Globally, many albatross and petrel populations are declining due to bycatch in fisheries. In South Georgia, the decrease in wandering albatrosses (Diomedea exulans) differs among breeding sites ...
Warwick-Evans V +3 more
europepmc +2 more sources
Facilitating Large-Scale Bird Biodiversity Data Collection in Citizen Science: 'Relaxed' Point Counts for Anytime, Anywhere Monitoring. [PDF]
Ecol EvolThis paper proposes a ‘relaxed’ point‐count survey method to enhance accessibility and expand geographic coverage by easing these constraints. Surveys can be conducted in diverse locations, including urban areas and travel routes, within flexible timeframes (e.g., 6 h after sunrise or during the evening) and with adaptable spacing between survey points,
Hisano M.
europepmc +2 more sources
Finding floral and faunal species richness optima among active fire regimes. [PDF]
Conserv BiolAbstract Changing fire regimes have important implications for biodiversity and challenge traditional conservation approaches that rely on historical conditions as proxies for ecological integrity. This historical‐centric approach becomes increasingly tenuous under climate change, necessitating direct tests of environmental impacts on biodiversity.
Steel ZL +8 more
europepmc +2 more sources
Studies on sleep patterns and sleep homeostasis in birds:An ecological approach [PDF]
, 2021 Sleep is a complex phenomenon that consists of two completely different and alternating states, slow-wave sleep (SWS) and rapid-eye-movement sleep (REM sleep).
van Hasselt, Sjoerd J.
core +1 more source
野生动物学报, 2022 2019年7月—2020年12月对广东树木公园的鸟类多样性进行调查，对公园内鸟类物种群落结构的动态变化进行了分析。结果表明：公园内分布有繁殖鸟类13目37科81种，其中国家二级重点保护鸟类6种，广东省重点保护鸟类8种；调查的81种鸟类中，优势种3种，常见种15种，稀有种29种，罕见种34种；东洋界鸟类和留鸟占优势；树木公园鸟类多样性存在季节性差异：种类和数量、多样性指数9—12月逐渐上升。树木公园内鸟类群落结构反映了城市森林公园在维持鸟类多样性，以及充当迁徙鸟类的“踏脚石”发挥了重要的作用。
郭乐东 1 #孙松 1 +1 more
doaj
野生动物学报, 2020 2018年3月—2019年2月，采用样线法和网捕法对南昌昌北国际机场鸟类多样性进行调查，共记录鸟类15目40科128种，其中国家Ⅱ级保护鸟类16种。鸟类优势种为丝光椋鸟（Sturnus sericeus）、白头鹎（Pycnonotus sinensis）、麻雀（Passer montanus）和八哥（Acridotheres cristatellus）。区系方面，古北界和广布种最多，各占鸟类物种总数的36.72%，不同季节鸟类区系组成存在较大差异。居留型方面，留鸟最多（47.66%），冬候鸟和夏候鸟次之（
陈斌, 邓宝琴
doaj
Integrative Conservation, EarlyView.This research reveals the functional stability of mixed species foraging flocks (MSF) and their foraging height change with different taxonomic differences along the elevational gradient at Knuckles Montane Reserve, Sri Lanka. This offers new insights into how MSFs sustain with the elevational gradients supporting the altitudinal shifting species ...
Vimukthi. R. Gunasekeara +3 more
wiley +1 more source
The structure and phylogenesis of olfactory receptor gene OR14J1 in ardeid birds [PDF]
, 2016 动物嗅觉受体（OlfactoryReceptor，OR）分布于嗅觉上皮而直接影响着嗅觉功能。哺乳类OR基因家族中位点相连于主要组织相容性复合体（MajorHistocompatibilityComplex，MHC）的基因比例最大，且邻近MHC的最常见OR14J1基因具有与MHC相关联的作用，动物通过嗅觉选择配偶能够有利于提高其免疫力和适应性。鸟类嗅觉以往被认为较弱而没有得到重视，近年来有关鸟类嗅觉基因的研究正在开始起步。 本论文在设计鹭科鸟类OR14J1通用引物的基础上，扩增鹭科鸟类OR14J1片段 ...
刘梦绮
core
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu +6 more
wiley +1 more source