Results 71 to 80 of about 24,870 (271)

Seasonal variation of leaf functional traits in sub‐Arctic plants

Oikos, EarlyView.
Leaf functional traits are informative of plant fitness and functions in ecosystems. These functional traits and their variation across geographic extents are much studied but less is known about their temporal variation over a growing season. Here, we provide an analysis of the seasonal variation in six leaf functional traits of 11 sub‐Arctic vascular
Pekka Niittynen, Marija Merkurjeva, Julia Kemppinen   +2 more
wiley   +1 more source

Record phenological responses to climate change in three sympatric penguin species. [PDF]

J Anim Ecol
This paper is impressive because we managed to monitor extensively a really difficult place to reach and operate in. We deployed 77 cameras across Antarctica and the Sub Antarctic islands to monitor three different species of penguins. We found that they are the fastest advancing vertebrates with respect to their timing of breeding.
Juarez Martinez I, Kacelnik A, Jones FM, Hinke JT, Dunn MJ, Raya Rey A, Lynch HJ, Owen K, Hart T.   +8 more
europepmc   +2 more sources

Reproductive performance of resident and migrant males, females and pairs in a partially migratory bird [PDF]

, 2017
We thank everyone from the Centre for Ecology & Hydrology (CEH) who contributed to data collection, and Scottish Natural Heritage for access to the Isle of May National Nature Reserve.
Burthe, Sarah J., Daunt, Francis, Grist, Hannah, Harris, Mike P., Newell, Mark A., Reid, Jane M., Wanless, Sarah   +6 more
core   +3 more sources

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

Oikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli, Mark A. Haroldson, Justin G. Clapp, Paolo Ciucci, Frank T. van Manen   +4 more
wiley   +1 more source

‘Using anuran community diversity and Pseudacris crucifer to predict landscape quality across a land use gradient'

Wildlife Biology, EarlyView.
As human‐modified landscape and climate changes proliferate, maintaining biodiversity and understanding the function and quality of available habitat is imperative. As anurans (frogs/toads) such as Pseudacris crucifer, can be an indicator species of habitat quality and ecosystem productivity, studying the anuran community in a mixed‐land use region ...
Brian C. Kron, Karen V. Root
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

Extracting Plant Phenology Metrics in a Great Basin Watershed: Methods and Considerations for Quantifying Phenophases in a Cold Desert

Sensors, 2016
Plant phenology is recognized as important for ecological dynamics. There has been a recent advent of phenology and camera networks worldwide. The established PhenoCam Network has sites in the United States, including the western states.
Keirith A. Snyder, Bryce L. Wehan, Gianluca Filippa, Justin L. Huntington, Tamzen K. Stringham, Devon K. Snyder   +5 more
doaj   +1 more source

Winter climate change in alpine tundra: plant responses to changes in snow depth and snowmelt timing [PDF]

, 2018
Snow is an important environmental factor in alpine ecosystems, which influences plant phenology, growth and species composition in various ways. With current climate warming, the snow-to-rain ratio is decreasing, and the timing of snowmelt advancing. In
Bebi, Peter, Stoeckli, Veronika, Wipf, Sonja   +2 more
core  

Predicting the effects of climate change on water yield and forest production in the northeastern United States [PDF]

, 1995
Rapid and simultaneous changes in temperature, precipitation and the atmospheric concentration of CO2 are predicted to occur over the next century. Simple, well-validated models of ecosystem function are required to predict the effects of these changes ...
Aber, John D, Federer, C. Anthony, Goulden, Michael L, Kicklighter, David W, Lathrop, Richard G Jr, Melillo, Jerry M, Ollinger, Scott V, Reich, Peter B   +7 more
core   +2 more sources

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