Results 41 to 50 of about 46,001 (313)
Age‐related trends in niche position and specialization in Neotropical vertebrates
Ecography, EarlyView.Species' niche positions and breadths within a region's environmental space, measured through ecological niche factor analysis (ENFA) as marginality and specialization, can reflect evolutionary constraints related to lineage age. The ‘internal incumbency' hypothesis predicts that older species, due to competitive preemption, occupy more central niche ...
Carlos Calderón del Cid +3 more
wiley +1 more source
Small mammals of the Mongolian mountain steppe region near Erdensant: insights from live-trapping and bird pellet remains. [PDF]
Mongolian Journal of Biological Sciences, 2005 Relatively little is known of the distribution, abundance and ecology of small mammals in Mongolia and as a result there is scant knowledge of the effects of environmental and anthropogenic factors on small mammal populations.
Joanne L. Isaac +3 more
doaj +1 more source
Atmosphere, 2022 Drought hinders economic and social growth in many areas of China, especially in livestock-dominated Xilin Gol League in Inner Mongolia. Most studies exclusively utilize rainfall to measure drought.
Zexun Chen +5 more
doaj +1 more source
Metallurgy in the Early Steppes [PDF]
Artibus Asiae, 1970 In Europe copper appeared in the middle of the third millennium B.c. in the framework of a developed technology in two marginal regions, in Spain and Portugal and on the shores of the Aegean. From both centers ready-made implements were exported over large areas mostly by sea trade.
openaire +2 more sources
Plant adaptive strategies respond to environmental change across European grassland habitats
Ecography, EarlyView.Grassland ecosystems are facing rapid and ongoing change driven by intensified land‐use and accelerated climate change, highlighting the urgent need to understand their potential adaptation and response to environmental change. We analyzed data from 52 980 vegetation plots spanning all major grassland habitats in Europe (including alpine, rocky, sandy,
Xiao‐Peng Tan +21 more
wiley +1 more source
Nature Conservation Research: Заповедная наукаBuzuluksky Pine Forest National Park (Russia) is an isolated forest with a total area of 866 km2, located entirely in the steppe biome in the south-east of the East European Plain.
Evgeny V. Barbazyuk, Pavel V. Velmovsky
doaj +1 more source
Aridity thresholds of soil microbial metabolic indices along a 3,200 km transect across arid and semi-arid regions in Northern China [PDF]
PeerJ, 2019 Soil microbial processes are crucial for understanding the ecological functions of arid and semi-arid lands which occupy approximately 40% of the global terrestrial ecosystems.
Jianfeng Hou +7 more
doaj +2 more sources
Simulating past and future refugia for temperate trees in northern Italy
Ecography, EarlyView.During the Quaternary, trees responded to the climatic changes of glacial–interglacial cycles with large‐scale range shifts. Over cold glacials, temperate tree species contracted their ranges and survived in areas known as refugia. Several studies point to the Euganean Hills (Colli Euganei), in Veneto, northern Italy, as one of the northernmost ...
Azzurra Pistone +4 more
wiley +1 more source
Shuitu baochi tongbao, 2023 [Objective] Soil water characteristics of different plant communities at different slope positions on aerial-seeded afforestation areas in 1992 were studied at the northeastern edge of the Tengger Desert in order to provide a theoretical basis for the ...
Tang Guodong +4 more
doaj +1 more source
Long-term ecological research program: shortgrass steppe [PDF]
, 1990 Proposal submitted to National Science Foundation Ecosystems Studies Program; Principal investigators: W. K. Lauenroth, I. C. Burke, J. Van Schilfgaarde, J. R.
Shortgrass Steppe Long Term Ecological Research (SGS-LTER), author
core