Results 131 to 140 of about 184,442 (345)

URBAN DEVELOPMENT RANGES OF RURAL SETTLEMENTS OF THE STEPPE ZONE OF EUROPEAN RUSSIA

open access: yesЮг России: экология, развитие, 2018
Aim. The steppe zone is not only a unique natural and geographical formation, but also within the framework of European Russia a special region with specific socio-economic and demographic processes.
Vadim P. Petrishchev, Polina A. Kosykh
doaj   +1 more source

Asymmetric warming significantly affects net primary production, but not ecosystem carbon balances of forest and grassland ecosystems in northern China [PDF]

open access: yes, 2015
We combine the process-based ecosystem model (Biome-BGC) with climate change-scenarios based on both RegCM3 model outputs and historic observed trends to quantify differential effects of symmetric and asymmetric warming on ecosystem net primary ...
Axmacher, JC, Feng, J, Sang, W, Su, H
core   +1 more source

Maximizing the detection probabilities of dusky grouse for population monitoring

open access: yesWildlife Biology, EarlyView.
Despite its status as a game species in the western USA, rigorous monitoring of dusky grouse Dendragapus obscurus populations is limited. Obtaining an adequate number of observations for effective population monitoring of dusky grouse is challenging due to difficult‐to‐reach montane habitats, cryptic behaviors, and limited personnel, time, and funds at
Elizabeth A. Leipold   +2 more
wiley   +1 more source

Actual State and Changes of Flora and Vegetation in the Broczówka Steppe Reserve [PDF]

open access: yes, 2011
This paper presents floristic characterization of xerothermic plant associations and analysis of changes of flora within Broczówka steppe reserve. The floristic research was carried out in 2004-2009.
Cwener, Anna, Nowak, Marcin
core   +2 more sources

Reframing the mammoth steppe: Insights from analysis of isotopic niches

open access: yesQuaternary Science Reviews, 2019
Woolly mammoth (Mammuthus primigenius), horse (Equus spp.) and bison (Bison spp.) coexisted with a variety of mammalian megafauna across the Pleistocene mammoth steppe – a megacontinental ecosystem that spanned northern Eurasia and northwestern North ...
R. Schwartz-Narbonne   +7 more
semanticscholar   +1 more source

The performance of drones and artificial intelligence for monitoring sage‐grouse at leks

open access: yesWildlife Biology, EarlyView.
Accurately monitoring sage‐grouse populations is critical for conservation, yet traditional ground‐based visual surveys face challenges in scalability and consistency, prompting the exploration of innovative drone‐based methodologies enhanced by artificial intelligence.
Lance B. McNew   +2 more
wiley   +1 more source

Index validation for ratio of maize hybrids upper ear attachment to plant height thereof (Zea mays L.)

open access: yesPlant Varieties Studying and Protection, 2014
Methodological rationale is given (procedure - morphological description) for ‘plant’ as a quantitative characteristic - ‘plant: ratio of upper ear attachment height to plant height’ for maize hybrids (Zea mays L.), as well as parameters of grading for ...
В. Ю. Черчель   +2 more
doaj   +1 more source

The permafrost carbon inventory on the Tibetan Plateau : a new evaluation using deep sediment cores [PDF]

open access: yes, 2016
Acknowledgements We are grateful for Dr. Jens Strauss and the other two anonymous reviewers for their insightful comments on an earlier version of this MS, and appreciate members of the IBCAS Sampling Campaign Teams for their assistance in field ...
Brown   +66 more
core   +2 more sources

Phenological responses to climate change: advancing mating and calving in wild and semi‐captive Caspian red deer

open access: yesWildlife Biology, EarlyView.
Species respond to climate change through phenological and spatial shifts. Herbivorous mammals, in particular, are vulnerable due to their direct dependence on seasonal vegetation and the potential misalignment between their reproductive cycles and shifting food availability.
Farid Salmanpour   +5 more
wiley   +1 more source

Demographic dynamics of the transborder regions of Russia and Kazakhstan: A multilevel analysis [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Серия Науки о Земле
The article examines demographic processes in the transboundary regions (the Russian-Kazakh border area) of Russia and Kazakhstan, which, despite their strategic importance, often remain on the periphery of national policy.
Sokolov, Alexander Andreevich   +1 more
doaj   +1 more source

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