Results 71 to 80 of about 3,037 (189)

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

Can snow depth be used to predict the distribution of the high Arctic aphid Acyrthosiphon svalbardicum (Hemiptera: Aphididae) on Spitsbergen?

BMC Ecology, 2011
Background The Svalbard endemic aphid Acyrthosiphon svalbardicum (Heikinheimo, 1968) is host specific to Dryas octopetala L. ssp octopetala (Rosaceae).
Ávila-Jiménez María L, Coulson Stephen J   +1 more
doaj   +1 more source

How much variation in land surface phenology can climate oscillation modes explain at the scale of mountain pastures in Kyrgyzstan?

International Journal of Applied Earth Observations and Geoinformation, 2020
Climate oscillation modes can shape weather across the globe due to atmospheric teleconnections. We built on the findings of a recent study to assess whether the impacts of teleconnections are detectable and significant in the early season dynamics of ...
Monika A. Tomaszewska, Geoffrey M. Henebry   +1 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 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

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

Effects of six years snowpack manipulation on growth and phenology of common juniper (Juniperus communis L.) at high elevation [PDF]

, 2023
openClimate change is nowadays a well-known and global phenomenon with multiple effects: from the warming trend in lands and oceans, to the biodiversity and ecosystems loss, from the ice sheets shrinking, to the increase in the intensity and severity of ...
FORNER, FRANCESCO
core  

Against the odds: Nesting specialization and foraging ecology provide insights into climate change responses in a mountain bee

Insect Conservation and Diversity, EarlyView.
A unique high‐elevation Exoneura bee defies typical elevation‐driven declines in bee activity, nesting exclusively in dead branches of snow gums near the alpine tree line. Nesting and foraging are tightly linked to snow gum presence, with most activity occurring within 30 m of these trees. Biophysical modelling indicates the bee's thermally constrained
Joshua M. Coates, Noel Takeshima, Francisco Encinas‐Viso, Saul A. Cunningham   +3 more
wiley   +1 more source

Contrasting effects from snow cover manipulation on two dwarf shrubs along an altitudinal gradient – an investigation on the phenology and performance of Vaccinium myrtillus and Vaccinium vitis-idaea [PDF]

, 2019
Vaccinium myrtillus and Vaccinium vitis-idaea are key species in boreal ecosystems due to their abundance in biomass, flowering and berry production, yet we know little about how they are affected by ongoing climate change.
Hollekim, Dag Petter Talleraas
core   +1 more source

Intra‐annual energy density cycles of spring‐ and fall‐spawning Atlantic herring Clupea harengus reveal different reproductive allocation tactics

Journal of Fish Biology, EarlyView.
Abstract Atlantic herring Clupea harengus are total spawners that exhibit a large degree of reproductive plasticity and have substantial intra‐annual variation in their energetic condition. Recent research suggests that the species may be declining in energetic condition in the northwest Atlantic Ocean from the few historical records, but comparisons ...
Joseph B. Warren, Mark J. Wuenschel, Kenneth Oliveira   +2 more
wiley   +1 more source