Results 51 to 60 of about 25,207 (272)

“Coastal” versus “inland” shorebird species: interlinked fundamental dichotomies between their life- and demographic histories? [PDF]

open access: yes, 2003
In this contribution I present an extended but testable hypothesis (or “evolutionary scenario”) to explain how and why many life-history features of latitudinal migrant shorebirds, basically characterised by the correlation between habitat choice in the ...
Piersma, Theunis,
core   +8 more sources

Exogenous Melatonin Alleviates Osmotic Stress by Enhancing Antioxidant Metabolism, Photosynthetic Maintenance, and Hormone Homeostasis in Forage Oat (Avena sativa) Seedlings

open access: yesGrasses
Melatonin (MT) is a multifunctional hormone that enhances crop resilience against various abiotic stresses. However, its regulatory mechanism of osmotic tolerance in forage oats (Avena sativa) plants under water-limited scenarios is still unclear.
Jingbo Yu   +4 more
doaj   +1 more source

A high-quality chromosome-level Eutrema salsugineum genome, an extremophile plant model

open access: yesBMC Genomics, 2023
Background Eutrema salsugineum (2n = 14), a halophyte in the family Brassicaceae, is an attractive model to study abiotic stress tolerance in plants. Two versions of E.
Meng Xiao   +11 more
doaj   +1 more source

A simple index for assessing cumulative human impacts on mountain lakes

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Mountain lakes are highly sensitive ecosystems and effective sentinels of environmental change, yet the exposure and magnitude of the human footprint remain poorly quantified. In this study, we develop a simple and non‐invasive abiotic index to assess cumulative pressures on mountain lakes. The proposed index integrates eight variables grouped
Clara Sáez   +3 more
wiley   +1 more source

Runoff from tropical alpine grasslands increases with areal extent of wetlands [PDF]

open access: yesCATENA, 2015
Abstract Tropical alpine grasslands of the northern Andes, commonly known as the paramo, provide abundant high-quality water for downstream populations as well as a variety of other environmental services. Yet, very little is known about the role that landscape characteristics play in the hydrologic functioning of these ecosystems.
Giovanny M. Mosquera   +4 more
openaire   +2 more sources

Justice in coexistence: Pastoralism and large carnivores on the Qinghai‐Tibet Plateau

open access: yesPeople and Nature, EarlyView.
Abstract The conflict between livestock husbandry and large carnivore conservation presents significant challenges in grassland ecosystems worldwide. Achieving sustainable coexistence among herders, livestock and large carnivores requires reconciling diverse perspectives and interests through equitable, inclusive and fair processes that address both ...
Yufang Gao, Yue Yu
wiley   +1 more source

Landscape influence on small-scale water temperature variations in a moorland catchment [PDF]

open access: yes, 2015
Acknowledgements Iain Malcolm and staff at Marine Scotland (Pitlochry) are thanked for the provision of data from the AWS.
Dick, J. J., Soulsby, C., Tetzlaff, D.
core   +1 more source

A Statistical‐Process Hybridized Approach to Modeling Permafrost Distribution in a Boreal Wetland Ecosystem, Whatì, NT, Canada

open access: yesPermafrost and Periglacial Processes, EarlyView.
ABSTRACT High‐resolution mapping of permafrost in ecologically and topographically complex landscapes remains a major challenge. Existing models of permafrost extent often rely on equilibrium assumptions, which can misrepresent conditions in regions where permafrost persists largely due to ecosystem structure.
Philip P. Bonnaventure   +3 more
wiley   +1 more source

Evolution of a stream ecosystem in recently deglaciated terrain

open access: yes, 2011
Climate change and associated glacial recession create new stream habitat that leads to the assembly of new riverine communities through primary succession.
Brown, LE   +5 more
core   +1 more source

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