Results 1 to 10 of about 238 (89)
Translating habitat class to land cover to map area of habitat of terrestrial vertebrates. [PDF]
Conserv Biol, 2022 Abstract Area of habitat (AOH) is defined as the “habitat available to a species, that is, habitat within its range” and is calculated by subtracting areas of unsuitable land cover and elevation from the range. The International Union for the Conservation of Nature (IUCN) Habitats Classification Scheme provides information on species habitat ...
Lumbierres M +5 more
europepmc +2 more sources
On the normative roles of biodiversity and naturalness in conservation. [PDF]
Conserv BiolAbstract Nature is an opaque concept. Consequently, the term biodiversity conservation has replaced nature conservation in most conservation contexts. We review the conceptual indeterminacies that plague the terms nature and natural but then show that comparable difficulties plague biodiversity.
Saltz D, Cohen S.
europepmc +2 more sources
Conservation Biology, Volume 36, Issue 6, December 2022., 2022 Abstract Africa's protected areas (PAs) are the last stronghold of the continent's unique biodiversity, but they appear increasingly threatened by climate change, substantial human population growth, and land‐use change. Conservation planning is challenged by uncertainty about how strongly and where these drivers will interact over the next few decades.
Carola Martens +3 more
wiley +1 more source
Representation of the world's biophysical conditions by the global protected area network
Conservation Biology, Volume 36, Issue 2, April 2022., 2022 Abstract Protected areas (PAs) are often implemented without consideration of already existing PAs, which is likely to cause an overrepresentation of certain biophysical conditions. We assessed the representativeness of the current PA network with regard to the world's biophysical conditions to highlight which conditions are underprotected and where ...
Matthias F. Biber +2 more
wiley +1 more source
Journal of Advanced Nursing, Volume 75, Issue 11, Page 2980-2994, November 2019., 2019 Abstract Aim To explore how provision of self‐management support to chronically‐ill patients in resource‐limited settings contributes to patient empowerment in chronic care. Design Concurrent descriptive mixed methods research. Methods A survey of 140 patients with chronic conditions administered at four time‐points in 12 months.
Vibian Angwenyi +4 more
wiley +1 more source
Shuitu Baochi Xuebao, 2004 根据从1985年和2000年的TM影像上提取的土地沙漠化数据,运用ARC/INFO软件和Access统计软件,分析科尔沁南部沙地两个时段的沙漠化土地构成、空间分布及其在面积、程度和空间上的变化特点。主要结论如下:科尔沁南部沙地沙漠化土地面积大,占总面积的44%～50%;在沙漠化程度构成上,中度沙化土地面积最多、比例最大;受地貌和风向等因素的控制,沙漠化土地的空间分布特点具有一定的规律,西部是片状的重度和极重度类型;东部是东西向延伸、多类型复杂交错的分布区;北部是轻度和中度类型分布区。自1985年以来 ...
曹军 吴绍洪 杨勤业
doaj +2 more sources
Shuitu Baochi Xuebao, 2003 由风蚀所导致的土壤物质再分配过程,决定了土地沙漠化的程度。根据半干旱干草原地区不同程度沙漠化土地土壤风蚀率的137Cs示踪结果,沙漠化各个阶段的土壤风蚀率指标为:潜在沙漠化土地以微弱堆积和微度风蚀为特征,风蚀率小于2000kg/(hm2·a);轻度沙漠化土地风蚀率介于2000～7000kg/(hm2·a)之间;中度沙漠化土地风蚀率大于7000kg/(hm2·a);重度沙漠化土地风蚀和堆积都很强烈,地表物质交换迅速,没有必要制定风蚀指标。
张春来 邹学勇 董光荣
doaj +2 more sources
Integrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey +2 more
wiley +1 more source
Shuitu Baochi Xuebao, 2003 山西省的晋西北和大同地区是全国荒漠化监测与防治的重点地区之一,也是环京津唐地区防风固沙、绿色生态屏障建设的重点地区之一.该区由风力侵蚀形成的沙质荒漠化土地分布集中,且危害较为严重.沙质荒漠化土地的发生与扩展是自然因素和人为因素综合作用的结果,气候干旱多风、地表沙物质丰富和植被稀疏等自然因素的存在,本身就孕育着沙质荒漠化发生与发展的自然过程,即沙质荒漠化的自然过程,而人类不合理的经济活动则是叠加在沙质荒漠化自然过程的基础上起加速、加剧作用,即沙质荒漠化的人为加速过程.动态监测资料表明流动沙地面积有增加趋势,
马义娟, 苏志珠
doaj +2 more sources
Experimentally testing animal responses to prescribed fire size and severity
Conservation Biology, Volume 38, Issue 3, June 2024.Abstract Deserts are often highly biodiverse and provide important habitats for many threatened species. Fire is a dominant disturbance in deserts, and prescribed burning is increasingly being used by conservation managers and Indigenous peoples to mitigate the damaging effects of climate change, invasive plants, and land‐use change. The size, severity,
Tim S. Doherty +4 more
wiley +1 more source