Results 41 to 50 of about 2,601 (182)

Effects of Biochar and Maize Roots on CO2 Emissions and Microbial Biomass C in Loess Soils

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Refractory substances such as biochar and labile substances such as dead fine and coarse roots play important roles in soil organic matter dynamics and have key ecological functions. However, interactions between these substances have only rarely been studied.
Bernard Ludwig   +2 more
wiley   +1 more source

Species Monitoring Using Unmanned Aerial Vehicle to Reveal the Ecological Role of Plateau Pika in Maintaining Vegetation Diversity on the Northeastern Qinghai-Tibetan Plateau

open access: yesRemote Sensing, 2020
Plateau pika (Ochotona curzoniae, hereafter pika) is considered to exert a profound impact on vegetation species diversity of alpine grasslands. Great efforts have been made at mound or quadrat scales; nevertheless, there is still controversy about the ...
Yu Qin   +6 more
doaj   +1 more source

Using art history to explore society's changing connections with agriculture

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Food insecurity is a looming challenge that especially affects those least fortunate. Consumer food choices have a substantial impact on the sustainability of current food systems. Here, we use art as a lens through which to consider our contemporary and historical relationship to one of the world's most crucial crops, the potato, in the context of the
Edward F. Hill‐King   +2 more
wiley   +1 more source

Prioritization of measures to reduce the risks of man-made emergencies taking into account the contribution of scenarios to overall uncertainty

open access: yesВестник Университета гражданской защиты МЧС Беларуси
Purpose. Development of a quantitative measure of the contribution of emergency scenarios to the overall uncertainty of the risk of man-made emergencies at fuel and energy facilities, based on the entropy of the system, the informational significance of ...
Romina M. Kretsu, Anatoliy V. Rybakov
doaj   +1 more source

Effects of timed LED regimes on tomato plant traits, performance of two‐spotted spider mites, and predatory mites (Phytoseiulus persimilis)

open access: yesPest Management Science, Volume 81, Issue 4, Page 2300-2311, April 2025.
Light‐emitting diode (LED)‐based treatments for enhancing crop production and pest management have primarily focused on continuous treatments. This study, using Tetranychus urticae and Phytoseiulus persimilis, demonstrates that the timing of LED supplementation is crucial for designing integrated pest management strategies that improve both plant ...
Patrice Savi   +5 more
wiley   +1 more source

Pika burrow and zokor mound density and their relationship with grazing management and sheep production in alpine meadow

open access: yesEcosphere, 2020
Plateau pikas (Ochotona curzoniae) and plateau zokors (Myospalax baileyi) occur naturally in the alpine meadow of the Qinghai–Tibet Plateau (QTP). Their feeding and burrowing activities affect plant composition and soil properties (e.g., soil carbon ...
Yingxin Wang   +6 more
doaj   +1 more source

Natural selection and adaptive evolution of leptin in the ochotona family driven by the cold environmental stress. [PDF]

open access: yesPLoS ONE, 2008
BACKGROUND: Environmental stress can accelerate the evolutionary rate of specific stress-response proteins and create new functions specialized for different environments, enhancing an organism's fitness to stressful environments. Pikas (order Lagomorpha)
Jie Yang   +7 more
doaj   +1 more source

Suitable habitat of Himalayan wolf in Upper Mustang, Annapurna Conservation Area, Nepal

open access: yesWildlife Biology, EarlyView.
Decades ago, the Himalayan wolf Canis lupus chanco, a genetically distinct sub‐species of the gray wolf Canis lupus, faced persecution by local communities in the Nepalese Himalayas. Recently, wolf populations have returned and recolonized, sparking concerns about conflicts over livestock depredation, and emphasizing the urgent need for comprehensive ...
Deu Bahadur Rana   +5 more
wiley   +1 more source

On pikas and ticks [PDF]

open access: yesFrontiers in Ecology and the Environment, 2021
Michelle M Olmstead, Sam Zeveloff
openaire   +1 more source

Cardiovascular Plasticity and Adaptation of High‐Altitude Birds and Mammals

open access: yesIntegrative Zoology, EarlyView.
This schematic depicts the cardiovascular adaptations of mammals and birds to high‐altitude hypoxia. It highlights key phenotypic changes in oxygen transport and cardiac responses, driven by molecular mechanisms including transcriptional regulation and genetic modifications.
Huishang She, Yanhua Qu
wiley   +1 more source

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