Results 21 to 30 of about 14,745 (118)
野生动物学报, 2009 采用瞬时扫描法研究了白鹤越冬行为的活动节律和时间分配。结果表明:越冬期笼养白鹤行为时间分配依次为静栖33.65%,觅食20.61%,理羽12.67%,避风11.37%,瞭望9.36%,啄雪草5.30%,游走2.96%,趴卧1.86%,鸣叫1.49%,展翅0.74%。笼养白鹤在越冬期活动有一定的节律性。两性间越冬期其行为和时间分配有一定的差异。不同的温度、天气条件,对笼养白鹤越冬行为有影响。
刘丹, 田秀华, 何相宝, 邬楠
doaj
Protected areas on international borders show uneven conservation outcomes
Conservation Biology, EarlyView.Abstract Border protected areas (BPAs) are national protected areas that are immediately adjacent to a country's border or span two or more countries; they are characterized by distinctive opportunities and pressures. They play a critical role in protecting carbon‐rich ecosystems, conserving endangered biodiversity, reducing cross‐border environmental ...
Rachakonda Sreekar +10 more
wiley +1 more source
野生动物学报, 2019 火烧是扎龙保护区一个主要的生境干扰类型。为了了解散养丹顶鹤针对火烧而形成的行为时间分配差异，本文采用定点观察法、焦点取样法对火烧区不同情景下散养丹顶鹤孵化期行为差异进行了比较分析。结果显示：（1）扎龙保护区，散养丹顶鹤孵化期的行为以孵化、觅食、警戒为主（92.48%）；（2）火烧区的出现，散养丹顶鹤的孵化、觅食、警戒行为时间分配会略高，而理羽和翻卵行为时间分配会略低；这种变化与火烧区的距离呈一定相关性。但卡方检验显示出，火烧区的存在和火烧区距离不影响散养丹顶鹤繁殖行为时间分配。进一步分析表明：轻度火烧下，
吴可新 沙力瓦·拍依祖拉木 苏滢 李小琴 彭景萃 李亚骐 吴庆明
doaj
Conservation Biology, EarlyView.Abstract Protected areas cannot halt biodiversity loss in isolation; integrating them with surrounding human‐dominated landscapes is critical. However, this integration is challenged by substantial landscape heterogeneity at protected area borders, making it difficult to determine cross‐border changes in ecosystem service provision.
Alberto González‐García +7 more
wiley +1 more source
野生动物学报, 2013 为了研究圈养丹顶鹤幼鸟的行为发育规律,为今后的丹顶鹤保护以及再引入工程提供有价值的资料,2011年6～9月,采用目标动物取样法和瞬时扫描取样法,在扎龙自然保护区对6只笼养丹顶鹤幼鸟进行了研究。研究了圈养丹顶鹤幼鸟生长发育过程中的行为谱及其变化和日间行为规律的变化。结果表明,随着周龄的增加,幼鸟的休息行为时间分配随着周龄的变化明显减少,游走、取食、理羽和警戒行为的时间分配随着周龄的变化有所增加,而玩耍行为的时间分配先逐渐增大然后减少并稳定。最后,圈养丹顶鹤幼鸟的各行为时间分配分别为:游走14.83 ...
曹雨, 吴建平
doaj
Assessing and quantifying variations in the functioning of marine food webs across scales
Conservation Biology, EarlyView.Abstract The mismatch between the scale of ecological processes and management decisions represents a significant challenge in marine conservation. This misalignment can result in ineffective conservation measures and compromise the sustainability of marine ecosystems.
Izaskun Preciado +16 more
wiley +1 more source
Latin American Policy, Volume 17, Issue 4, December 2026.ABSTRACT The public budget has been widely used as an indicator of government attention to measure the distribution of government priorities and the dynamics of budgetary changes across policy sectors. Shifting the debate and analytical locus on budget dynamics to Latin America, recent studies have applied the Punctuated Equilibrium Theory to the ...
Felipe Gonçalves Brasil +2 more
wiley +1 more source
野生动物学报, 2013 2011年1～2月,采用瞬时扫描法对徐州金桥珍禽养殖场的黑天鹅进行了研究。研究发现,黑天鹅在孵化期具有一定的行为时间分配。行为时间分配为:孵化29.96%、理羽15.06%、采食11.87%、游泳10.22%、站立8.09%、游走7.15%、筑巢7.07%、警戒6.09%、休息3.00%、对鸣1.53%。对不同性别黑天鹅的时间分配进行独立样本T检验,结果显示:除筑巢行为差异显著 ...
高志瑾 +4 more
doaj
Rare Metals, Volume 45, Issue 11, November 2026.ABSTRACT Wide‐bandgap perovskite solar cells (WBG PSCs) have attracted significant attention as the top cell in tandem perovskite solar cells. However, the complexity of the composition leads to challenges such as defect formation and phase separation during the crystallization process, which impose significant constraints on the power conversion ...
Suzhen Liu +9 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2023 在双碳目标的驱动下，碳排放权愈发成为重要的地区发展权，在县域层面落实落位碳额分配是我国深入减碳的焦点，浙江省将在“十四五”时期进入局部率先达峰的二级减碳阶段。为分解落实我国自主减碳目标，采用熵权法构建以公平性、效率性、可持续性为原则的碳排放权分配模型，基于碳排放空间与减碳潜力测算方法，得到2017—2030年浙江省89个县（市、区）的碳排放权分配、碳排放空间分类和减碳潜力分级。结果表明，碳排放权分配在县域层级存在空间差异性，在省域层级存在空间平衡性；碳排放空间分类呈“南余北赤”模式；减碳潜力分级表现为 ...
周从越(ZHOU Congyue) +3 more
doaj +1 more source