Results 151 to 160 of about 1,000,186 (343)

EFFECTS OF LAND COVER, WATER REDISTRIBUTION, AND TEMPERATURE ON ECOSYSTEM PROCESSES IN THE SOUTH PLATTE BASIN [PDF]

open access: yes, 1998
Over one‐third of the land area in the South Platte Basin of Colorado, Nebraska, and Wyoming, has been converted to croplands. Irrigated cropland now comprises 8% of the basin, while dry croplands make up 31%.
Band, Larry E.   +5 more
core   +1 more source

Life after herbarium digitisation: Physical and digital collections, curation and use

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Societal Impact Statement Collections of dried plant specimens (herbaria) provide an invaluable resource for the study of many areas of scientific interest and conservation globally. Digitisation increases access to specimens and metadata, enabling efficient use across a broad spectrum of research.
Alan James Paton   +39 more
wiley   +1 more source

Digitisation of herbarium specimens to the benefit of research: An African perspective focusing on South Africa and Western Indian Ocean Island states

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Botanical exploration, discovery and conservation rely heavily on access to herbarium collections. Recently, digital access to label information, including georeferenced locality data, and images of herbarium specimens available online have greatly increased usage of herbarium specimen data.
Ronell R. Klopper   +9 more
wiley   +1 more source

Interactions of Climate, Topography, and Soil Factors Can Enhance Their Individual Explanatory Power for Spring Phenology in the Arid and Semi-Arid Grasslands of China

open access: green, 2023
Li-Yang Guo   +7 more
openalex   +1 more source

Seasonal Growth of Waterhyacinth in the Sacramento/San Joaquin Delta, California [PDF]

open access: yes, 2005
Waterhyacinth ( Eichhornia crassipes (Mart.) Solms), is a serious problem in the Sacramento/San Joaquin Delta, California. There is little published information on its phenology or seasonal growth in this system. Waterhyacinths were sampled at 2 to
Ksander, G. G., Spencer, David F.
core  

Detecting extirpation: A localized approach to a global problem

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
The global biodiversity crisis stems from a cascading series of extirpations driving species toward extinction. Addressing this crisis requires methods for early detection of extinction at local scales, where communities can mobilize conservation efforts.
Andrew D. F. Simon   +4 more
wiley   +1 more source

Made in the shade: Leaf responses of native wildflowers to single‐axis photovoltaic solar energy

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
As solar energy expands globally, balancing renewable power generation with biodiversity and ecosystem health has become an urgent challenge. This study investigated how native wildflowers respond at leaf level to the unique microclimates created by rotating solar panels in California's Central Valley.
Yudi Li   +3 more
wiley   +1 more source

Phenological observations and sex ratios in Marchantia chenopoda L. (Hepaticae: Marchantiaceae) [PDF]

open access: yes, 1992
Sex ratios were determined for 15 populations of Marchantia chenopoda L. along Puerto Rico. Sex was determined for twenty randomly selected individuals from each population. A female bias was observed in most populations.
Moyá, María T.
core  

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