Results 71 to 80 of about 24,733 (259)

Leveraging machine learning and citizen science data to describe flowering phenology across South Africa

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Recent shifts in flowering times are an index of, and a response to, human driven climate change. However, most information on these flowering changes is heavily skewed to the northern hemisphere. This imbalance limits our understanding of how climate change is affecting ecosystems, including the mismatches of flowering times between species, increased
Ross D. Stewart   +3 more
wiley   +1 more source

Evaluation of Satellite-Derived Estimates of Lake Ice Cover Timing on Linnévatnet, Kapp Linné, Svalbard Using In-Situ Data

open access: yesRemote Sensing, 2022
Arctic lakes are sensitive to climate change, and the timing and duration of ice presence and absence (i.e., ice phenology) on the lake surface can be used as a climate indicator.
Samuel E. Tuttle   +5 more
doaj   +1 more source

Conservation, genetic improvement and silviculture of rattan species in south east Asia. Six month progress report on the activities of the participants to the project N°TS3-CT94-0285 [PDF]

open access: yes, 1995
Rattan is a forest product with a high value for local economy of South East Asia. The rattan trade represents S 5 billions, 90 % of which being concentrated in Indonesia and Malaysia.
CIRAD-FORET - FRA   +4 more
core  

Consistent phenological shifts in the making of a biodiversity hotspot: the Cape flora [PDF]

open access: yes, 2011
Background The best documented survival responses of organisms to past climate change on short (glacial-interglacial) timescales are distributional shifts. Despite ample evidence on such timescales for local adaptations of populations at specific sites,
A Menzel   +105 more
core   +6 more sources

Solar farms can mitigate negative impacts of whiplash weather on plant communities in a dryland ecosystem

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Utility‐scale solar energy (USSE) development generates novel questions regarding coupling clean energy production with terrestrial ecosystem services (e.g., forage production, pollinator support). We found that a USSE array sited in a fallowed cropland maintained a reseeded native plant community even a decade post‐restoration and that the array ...
Caitlin Robertson   +2 more
wiley   +1 more source

Policies Improving Environment in North America, But New Challenges Such As Climate Change Need Attention [PDF]

open access: yes, 2016
Environmental conditions in North America have improved due to policies, institutions, data collection and assessment, and regulatory frameworks. Air quality, in particular, continues to improve in response to concerted policy action and favorable trends

core  

SYN‐A, a naturally derived synergist, restores pyrethroid efficacy against cabbage stem flea beetle but negatively impacts its parasitoid Microctonus brassicae

open access: yesPest Management Science, EarlyView.
SYN‐A, a naturally derived synergist, inhibited key metabolic pathways associated with pyrethroid insecticide resistance in cabbage stem flea beetle (CSFB) and its parasitoid Microctonus brassicae. SYN‐A restored pyrethroid efficacy against resistant CSFB allowing up to 80% reduction in application rates.
Patricia A. Ortega‐Ramos   +2 more
wiley   +1 more source

Brief communication: Improving lake ice modeling in ORCHIDEE-FLake model using MODIS albedo data [PDF]

open access: yesThe Cryosphere
The FLake lake model embedded in the ORCHIDEE land surface model was recently updated to better represent winter ice cover. MODIS albedo data and the Great Lakes ice cover fraction dataset over the Laurentian Great Lakes were used to calibrate and ...
Z. Titus   +4 more
doaj   +1 more source

Timing avian long-distance migration: from internal clock mechanisms to global flights [PDF]

open access: yes, 2017
Migratory birds regularly perform impressive long-distance flights, which are timed relative to the anticipated environmental resources at destination areas that can be several thousand kilometres away.
Helm, Barbara,   +6 more
core   +2 more sources

Warming Climate-Induced Changes in Lithuanian River Ice Phenology

open access: yesSustainability
Due to rising surface air temperatures, river ice is shrinking dramatically in the Northern Hemisphere. Ice cover during the cold season causes fundamental changes in river ecosystems and has important implications for nearby communities and industries.
Diana Šarauskienė   +3 more
openaire   +1 more source

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