Results 91 to 100 of about 24,392 (236)
Conservation Biology, EarlyView.Abstract Achieving global conservation policy goals requires the ability to set and measure progress toward science‐based targets for biodiversity. The species threat abatement and restoration (STAR) metric was developed to enable actors to set science‐based targets for species.
Louise Mair +17 more
wiley +1 more source
Harnessing social media data to track species range shifts
Conservation Biology, EarlyView.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
Shuitu Baochi Xuebao, 2011 在盆栽模拟复垦的条件下,利用传统平板计数法与BIOLOG方法相结合研究菌剂与缓释肥配施对土壤微生物生态的影响。结果表明,菌剂与缓释肥配施能显著提高土壤细菌、真菌和放线菌的数量。同时对土壤酶活性也具有有明显的影响。就脲酶而言,由于缓释肥与菌剂的配合施用,抑制了其活性,延长了缓释肥的肥效。通过对磷酸酶的研究发现,由于菌剂的加入促进了磷酸酶的活性,菌剂与缓释肥配施处理的土壤磷酸酶活性显著高于纯化肥处理的。通过多样性指数的测定表明菌剂与缓释肥配施处理土壤微生物群落的Shannon多样性指数 ...
胡可, 王利宾, 杜慧玲
doaj
Haiyang yu huzhao为了解汉阳水网中的原生动物群落结构与物种多样性特征及其影响因子, 探讨原生动物对湖泊富营养化的响应规律, 于2021~2022年对水网中5个湖泊的水环境及原生动物进行了4个季节的调查分析。结果表明, 后官湖为轻度富营养, 三角湖和南太子湖为中度富营养, 墨水湖和龙阳湖为重度富营养。共检出原生动物31属59种, 其中后官湖种类最少, 有21种, 龙阳湖和墨水湖种类较多, 分别有41种、40种。原生动物年均密度的变化范围为123.37~579.47 ind./L, Shannon ...
熊 雪平 +4 more
doaj +1 more source
Study of NPZD Ecosystem Dynamical Model Application in Beibu Gulf [PDF]
, 2016 北部湾是我国重要的海湾和渔场，被誉为我国“最后的洁净”，近年来在我国沿海经济发展的成就和潜力倍受关注，然而工业化、城镇化进程的持续加快，也给北部湾的生态环境带来了巨大压力。鉴于此，研究北部湾生态系统的时空分布特征及其对动力环境变化的响应过程具有重要意义，可为我国北部湾生态环境保护建设、资源管理开发和经济发展策略制定等提供科学参考依据。 本文在已建立的“北部湾三维水动力—NPZD生态耦合模型”的基础上进行了进一步的拓展和应用研究，结合历年观测数据、卫星遥感数据和数值模型结果 ...
郑艺妃
core
Biodiversity‐driven spatial conservation planning to delineate temporally stable regions
Conservation Biology, EarlyView.Abstract The accelerating loss of biodiversity underscores the critical need for effective conservation strategies, particularly in the face of climate change and anthropogenic pressures. We devised a conservation planning framework that adopts a temporal stacking approach to species distribution models and landscape connectivity analyses. These models
Mattia Iannella +5 more
wiley +1 more source
基于贝叶斯权重估计方法的两栖动物多样性分析——以广东粤北华南虎省级自然保护区为例
野生动物学报野外调查是采集生物多样性数据最常用的方法，但在实际应用中，样本量总是有限的，部分稀有种可能不会出现在样本中。因此野外调查结果往往无法全面地反映研究区域的整体物种多样性。为充分掌握广东粤北华南虎省级自然保护区两栖动物多样性现状，于2022年6—10月采用样线法对该保护区的两栖动物展开调查；基于野外调查数据，采用贝叶斯权重估计方法估计保护区的物种总数目。通过野外调查记录到26种两栖动物，结合往期的调查资料，保护区现记录有35种两栖动物。贝叶斯权重估计方法的估计结果为34种，与保护区现有的两栖动物多样性记录
康桐铭 +6 more
doaj
Developing ecosystem service indicators: experiences and lessons learned from sub-global assessments and other initiatives [PDF]
, 2011 People depend upon ecosystems to supply a range of services necessary for their survival and well-being. Ecosystem service indicators are critical for knowing whether or not these essential services are being maintained and used in a sustainable manner ...
Armenteras, Dolors +57 more
core +1 more source
Conservation Biology, EarlyView.Abstract Although significant biodiversity has been safeguarded by protected areas (PAs), biodiversity trends continue downward. Within the frameworks of the EU Biodiversity Strategy for 2030 and the new EU Restoration Regulation (2024), conserving critical biodiversity areas is essential.
George Kefalas +14 more
wiley +1 more source
, 2012 洪泽湖是我国第四大淡水湖,然而关于洪泽湖大型底栖动物的报道较少。为了研究洪泽湖大型底栖动物群落结构特征及其影响因子,在洪泽湖设置20个采样点,进行了为期1周年的季度调查(2010年5月-2011年2月)。共采集到大型底栖动物14种,寡毛类、摇蚊科幼虫和软体动物分别有5种(占总物种数的35.7%)、3种(21.4%)和6种(42.9%)。河蚬为第一优势种(优势度Y=0.18),其次分别为苏氏尾鳃蚓(0.09)、羽摇蚊(0.07)、霍甫水丝蚓(0.06)和铜锈环棱螺(0.06 ...
张堂林 +4 more
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