Results 81 to 90 of about 347,516 (369)

Screening of tall fescue genotypes for relative water content and osmotic potential under drought stress

open access: yesGrassland Research, 2022
Background Tall fescue (Festuca arundinacea Schreb.) is an important cool‐season perennial grass. Its persistence and forage yield can be severely affected by drought stresses during the hot, dry summers of the southern USA.
Francis M. Kirigwi, Malay C. Saha
doaj   +1 more source

Development of Future Habitat Suitability Models for the Swift fox (Vulpes velox) in the American Southwest [PDF]

open access: yes, 2009
The Swift fox (Vupes velox) is a habitat specialist species of short or mixed grass prairie. We used bioclimatic envelope models and habitat suitability models under three future climate scenarios (based on CO2 emission rates) from "www ...
Jennifer Redman   +3 more
core   +2 more sources

Geoarchaeological characterisation of a Younger Dryas site in the Alpine uplands: Cornafessa rock shelter (Italy)

open access: yesGeoarchaeology, Volume 38, Issue 1, Page 35-56, January/February 2023., 2023
Abstract The effects of the Younger Dryas (YD) fluctuation on Late Pleistocene hunter‐gatherers' settlement and subsistence systems in the southern Alps are poorly known. This is primarily due to the scarcity of archaeological sites dating from the YD, in contrast with the extensive evidence available from the lateglacial interstadial and the early ...
Diego E. Angelucci   +2 more
wiley   +1 more source

Diverse perennial circular forage systems are needed to foster resilience, ecosystem services, and socioeconomic benefits in agricultural landscapes

open access: yesGrassland Research, 2022
Prevailing agricultural systems dominated by annual crop monocultures, and the landscapes that contain them, lack resilience and multifunctionality. They are vulnerable to extreme weather events, contribute to degradation of soil, water, and air quality,
Valentin D. Picasso   +10 more
doaj   +1 more source

Grass functional traits reflect the long history of fire and grazers in the savannas of Texas

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Understanding relationships among grass traits, fire, and herbivores may help improve conservation strategies for savannas that are threatened by novel disturbance regimes. Emerging theory, developed in Africa, emphasizes that functional traits of savanna grasses reflect the distinct ways that fire and grazers consume biomass ...
Ashish N. Nerlekar   +2 more
wiley   +1 more source

Functional profiles of soil microbial communities in the alpine and temperate grasslands of China

open access: yesGrassland Research, 2022
Grassland ecosystems in cold regions are typical of short growing seasons and limited primary productivity, rendering soil microorganisms as major ecosystem engineers in governing biogeochemical cycling.
Yunfeng Yang, Jizhong Zhou, Xue Guo
doaj   +1 more source

Organic grassland: the foundation stone of organic livestock farming [PDF]

open access: yes, 2001
In organic farming, the components of the whole farm system interact closely and grassland plays the central role in this intricate web, including the arable cropping phase.
Younie, D.
core  

The spatial distribution of a hummingbird‐pollinated plant is not strongly influenced by hummingbird abundance

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Many angiosperms have evolved specialized systems that promote pollination by specific taxa. Therefore, plant distributions may be limited by the local abundance of their specialist pollinators. In eastern North America, Lobelia cardinalis is thought to be pollinated solely by Archilochus colubris, the only hummingbird species found in
Matthew L. Coffey, Andrew M. Simons
wiley   +1 more source

Spatial variation of grassland canopy affects soil wetting patterns and preferential flow

open access: yesHydrological Processes, Volume 36, Issue 12, December 2022., 2022
Spatially heterogeneous canopy and pre‐event soil moisture conditions changed soil‐wetting patterns. Taller grass, together with drier soil, weakens soil moisture response, probably because of uneven water input and dryness induced preferential flow. Abstract Canopies shape net precipitation patterns, which are spatially heterogeneous and control soil ...
Gökben Demir   +4 more
wiley   +1 more source

Strong parallel evidence of selection during switchgrass sward establishment in hybrid and lowland ecotypes

open access: yesGrassland Research, 2022
Background Switchgrass sward establishment results in up to 90% seedling mortality. The degree of selection during sward establishment has not been reported using modern genetic methods.
Neal W. Tilhou   +2 more
doaj   +1 more source

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