Results 71 to 80 of about 20,566 (234)

Maximizing the detection probabilities of dusky grouse for population monitoring

Wildlife Biology, EarlyView.
Despite its status as a game species in the western USA, rigorous monitoring of dusky grouse Dendragapus obscurus populations is limited. Obtaining an adequate number of observations for effective population monitoring of dusky grouse is challenging due to difficult‐to‐reach montane habitats, cryptic behaviors, and limited personnel, time, and funds at
Elizabeth A. Leipold, Claire Gower, Lance B. McNew   +2 more
wiley   +1 more source

Quantifying microhabitat selection of snowshoe hares using forest metrics from UAS‐based LiDAR

Wildlife Biology, EarlyView.
Identifying the spatial and temporal scale at which animals select resources is critical for predicting how populations respond to changes in the environment. The spatial distribution of fine‐scale resources (e.g. patches of dense vegetation) are often linked with critical life‐history requirements such as denning and feeding sites.
Alexej P. K. Sirén, Franklin Sullivan, Rachel Cliché, Jeremy Goetz, Leighlan S. Prout, Jillian Kilborn, Katelyn Courtot, Michael Palace   +7 more
wiley   +1 more source

Winter and spring climatic conditions influence timing and synchrony of calving in reindeer.

PLoS ONE, 2018
In a context of climate change, a mismatch has been shown to occur between some species' reproductive phenology and their environment. So far, few studies have either documented temporal trends in calving phenology or assessed which climatic variables ...
Amélie Paoli, Robert B Weladji, Øystein Holand, Jouko Kumpula   +3 more
doaj   +1 more source

Mapping Crop Cycles in China Using MODIS-EVI Time Series [PDF]

, 2014
As the Earth’s population continues to grow and demand for food increases, the need for improved and timely information related to the properties and dynamics of global agricultural systems is becoming increasingly important.
Friedl, Mark A, Frolking, Steve, Gray, Josh M, Li, Le, pan, Yaozhong, Xin, Qinchuan   +5 more
core   +3 more sources

Hummingbird interaction niche packing is influenced by species richness and resource availability in the southern tropical Andes

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Niche partitioning is often considered an important mechanism promoting species co‐occurrence in species‐rich communities. As species richness increases, niche partitioning may lead to different niche structures, including increased packing of species niches when the ...
Bryan G. Rojas, Carlos Iván Espinosa, Catherine H. Graham, Boris A. Tinoco   +3 more
wiley   +1 more source

Effects of snow manipulation on larch trees in the taiga forest ecosystem in northeastern Siberia

Progress in Earth and Planetary Science, 2022
Changes in winter precipitation (snow) may greatly affect vegetation by altering hydrological and biochemical processes. To understand the effects of changing snow cover depth and melt timing on the taiga forest ecosystem, a snow manipulation experiment ...
Ruslan Shakhmatov, Shuhei Hashiguchi, Trofim C. Maximov, Atsuko Sugimoto   +3 more
doaj   +1 more source

A comparative study of satellite and ground-based phenology [PDF]

, 2018
Long time series of ground-based plant phenology, as well as more than two decades of satellite-derived phenological metrics, are currently available to assess the impacts of climate variability and trends on terrestrial vegetation.
Appenzeller, C., Studer, S., Stöckli, R., Vidale, P.   +3 more
core  

First assessment of the plant phenology index (PPI) for estimating gross primary productivity in African semi-arid ecosystems

, 2019
The importance of semi-arid ecosystems in the global carbon cycle as sinks for CO2 emissions has recently been highlighted. Africa is a carbon sink and nearly half its area comprises arid and semi-arid ecosystems.
Abdi, A. M., Ardo, J., Boke-Olen, N., Eklundh, L., Jin, H., Lehsten, V., Tagesson, T.   +6 more
core   +1 more source

From steps to home ranges: How habitat disturbance influences the movement drivers of an arboreal primate

Journal of Animal Ecology, EarlyView.
Challenging the narrative about howler monkeys' high resilience to anthropogenic changes, our multiscale analysis reveals the costs of habitat disturbance to their movement ecology. We identify thermal limitations, reduced travel efficiency, and significant spatial saturation.
Anaid Cárdenas‐Navarrete, Sarie Van Belle, Ulises Lara‐García, Manuel Guzmán‐Aguilar, Onja H. Razafindratsima   +4 more
wiley   +1 more source

Intercomparison of phenological transition dates derived from the PhenoCam Dataset V1.0 and MODIS satellite remote sensing [PDF]

, 2018
Phenology is a valuable diagnostic of ecosystem health, and has applications to environmental monitoring and management. Here, we conduct an intercomparison analysis using phenological transition dates derived from near-surface PhenoCam imagery and MODIS
Frolking, Stephen E., Hufkens, Koen, Milliman, Thomas E., Richardson, Andrew D.   +3 more
core   +1 more source