Results 91 to 100 of about 20,566 (234)

The Forgotten Pink Salmon in the Laurentian Great Lakes: An Unexpected Invasion With Insights for Three Oceans

Fish and Fisheries, EarlyView.
ABSTRACT Introductions of species outside their native range, such as pink salmon (Oncorhynchus gorbuscha) in the Laurentian Great Lakes, can serve as unplanned experiments that provide new insights into ecological adaptation. We synthesize available information on the understudied Great Lakes pink salmon invasion and highlight how this case can inform
Joseph A. Langan, Peter J. Alsip, Hazem U. Abdelhady, Charles R. Bronte, Cory A. Goldsworthy, Matthew S. Kornis, Krista B. Oke, Eva B. Thorstad, Benjamin A. Turschak   +8 more
wiley   +1 more source

Green-Down Protocol [PDF]

, 2003
The purpose of this resource is to observe plant green-down and report greendown data to help validate estimates of the end of the plant growing season. Students monitor the change in color of selected leaves of trees, shrubs or grasses.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

The influence of climate and hydrological variables on opposite anomaly in active-layer thickness between Eurasian and North American watersheds [PDF]

, 2013
This study not only examined the spatiotemporal variations of active-layer thickness (ALT) in permafrost regions during 1948-2006 over the terrestrial Arctic regions experiencing climate changes, but also identified the associated drivers based on ...
FEDOROV, Alexander, FEDOROV, Alexander, IIJIMA, Yoshihiro, OHATA, Tetsuo, PARK, Hotaek, SHERSTIUKOV, Artem, SHERSTIUKOV, Artem, WALSH, John, WALSH, John, 大畑, 哲夫, 朴, 昊澤, 飯島, 慈裕   +11 more
core   +2 more sources

Low breeding propensity in a declining Arctic‐breeding swan revealed by telemetry data

Ibis, EarlyView.
Many migratory bird populations are declining in the face of habitat degradation and climate change, making it important to identify which stages of their annual cycle are most affected in order to guide conservation measures. The Bewick's Swan Cygnus columbianus bewickii, an Arctic‐breeding waterfowl species, has suffered a dramatic population decline
Tohar Tal, Bart A. Nolet, Tom S.L. Versluijs, Judy Z. Shamoun‐Baranes, Götz Eichhorn, Sabine Urban, Hans Linssen   +6 more
wiley   +1 more source

Changes in snow cover climatology and its elevation dependency over Romania (1961–2020)

Journal of Hydrology: Regional Studies
Study Region: Romanian territory and the Carpathian Mountains, Romania.Study focus: We provide a consistent picture of long-term changes in relevant snow cover characteristics, including phenology (timing of the snow onset and melting), snow cover ...
Vlad-Alexandru Amihăesei, Dana-Magdalena Micu, Sorin Cheval, Alexandru Dumitrescu, Lucian Sfîcă, Marius-Victor Bîrsan   +5 more
doaj   +1 more source

Seasonality and plasticity in the use of native and introduced plant resources by a large forest parrot

Ibis, EarlyView.
Human‐induced environmental change is reshaping plant communities, requiring native animals to adapt their foraging behaviour to track and exploit novel food resources. Trees such as pines (Pinus spp.) introduced for plantation forestry outside of their native ranges often become naturalized.
Tirth Vaishnav, Kevin Chase Burns, Rachael C. Shaw   +2 more
wiley   +1 more source

A random-forest-derived 35-year snow phenology record reveals climate trends in the Yukon River Basin [PDF]

The Cryosphere
This study presents a 35-year snow phenology record for the Yukon River Basin (YRB), developed using a random forest (RF) model at a 3.125 km resolution, capturing detailed trends in snowmelt onset and snow-off.
C. G. Pan, K. Lasko, S. P. Griffin, J. S. Kimball, J. Du, T. G. Meehan, P. B. Kirchner   +6 more
doaj   +1 more source

A protracted phenology: Post‐diapause larval development of a threatened butterfly

Insect Conservation and Diversity, EarlyView.
Larval survival during diapause was high; hibernaculum webs were mostly located near Succisa pratensis plants, which often retained vital leaves through winter. Post‐diapause developmental time varied strongly depending on exposure to different microclimates, being reduced by litter cover, solar radiation and a higher heat load index.
Gwydion Scherer, Thomas Fartmann
wiley   +1 more source

Green-Up Protocol [PDF]

, 2003
The purpose of this resource is to observe plant green-up and report data that will be used by scientists to validate satellite estimates of the beginning of the plant growing season.
The GLOBE Program, University Corporation for Atmospheric Research (UCAR)
core  

Winners and losers in subarctic moth communities in a changing climate: Marine regime shifts as predictors for terrestrial insect biomass

Insect Conservation and Diversity, EarlyView.
1972–2017, the total moth biomass ina subarctic community had a positive trend but biomass trends differ betweenmoth groups based on taxonomy, phenology and resource use. In the northern latitudes,outbreaking species impact greatly moth biomass Moth biomass is associated withtemperature variables and marine Regime shifts, which can be effective ...
Julia J. J. Fält‐Nardmann, Heta E. J. Rousi, Ilmari Juutilainen, Tommi Andersson, Betty Marjamäki, Juhani Itämies, Pekka Niemelä, Jari Hänninen   +7 more
wiley   +1 more source