Results 91 to 100 of about 573,851 (275)

Growing Degree‐Day Trends Associated With ‘False Springs’ in the Continental United States

International Journal of Climatology, EarlyView.
Earlier spring warming has increased growing degree‐day (GDD) accumulation prior to the last freeze at some US locations (red circles = stat. sig. increases). However, after accounting for spatial autocorrelation using a false discovery rate approach, few trends remain significant, indicating no coherent continental‐scale increase in false spring risk.
Robert E. Davis, Julia Finkbeiner, Marion Donald, Manuel Lerdau   +3 more
wiley   +1 more source

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

The 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, Z. Titus, A. Cuynet, E. Salmon, C. Ottlé   +4 more
doaj   +1 more source

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

, 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  

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

Lagging spawning and increasing phenological extremes jeopardize walleye (Sander vitreus) in north‐temperate lakes

Limnology and Oceanography Letters
The phenology of critical biological events in aquatic ecosystems is rapidly shifting due to climate change. Growing variability in phenological cues can increase the likelihood of trophic mismatches (i.e., mismatches in the timing of peak prey and ...
Martha E. Barta, Greg G. Sass, Jeffrey R. Reed, Thomas A. Cichosz, Aaron D. Shultz, Mark Luehring, Zachary S. Feiner   +6 more
doaj   +1 more source

Biodiversity climate change impacts report card technical paper:10. Implications of climate change for coastal and inter-tidal habitats in the UK [PDF]

, 2015
Executive summary - Coastal habitats are complex, dynamic and interdependent. They are important in providing sea defences, areas for recreation, biodiversity and a range of other ecosystem services.
Davy, Anthony J., Grant, Alastair, Lawrence, Peter J., Mossman, Hannah L.   +3 more
core  

Understanding the effects of patch‐burn grazing management on aboveground grassland invertebrate biodiversity

Oikos, EarlyView.
Landscape heterogeneity is widely recognized as a driver of biodiversity, yet its consequences for above‐ground, foliage‐dwelling insect communities under active grassland management remain underexplored. Patch‐burn grazing (PBG), which rotates fire across patches within a grazed landscape, is designed to promote spatial and temporal heterogeneity by ...
Zachary L. T. Bunch, Meghan L. Avolio, Sally E. Koerner, Kevin R. Wilcox, Lydia H. Zeglin, Kimberly J. Komatsu   +5 more
wiley   +1 more source

(Micro)evolutionary changes and the evolutionary potential of bird migration

, 2018
Seasonal migration is the yearly long-distance movement of individuals between their breeding and wintering grounds. Individuals from nearly every animal group exhibit this behavior, but probably the most iconic migration is carried out by birds, from ...
A Helbig, A Helbig, A Johnsen, AC Perdeck, AJ Helbig, AP Møller, BM Winger, BM Winger, Butlin R et al, The Marie Curie Speciation Network, C Bell, D Schluter, DE Irwin, DL Rabosky, E Schüz, E Schüz, E Yohannes, ESC Scordato, F Pulido, F Pulido, F Pulido, G Bazzi, G Rolshausen, G Voelker, GM Hewitt, GM Hewitt, GW Cox, H Rundle, HA Hochbaum, J Belliure, J Rappole, J Rolland, JA Rönn von, JB Phillips, JC Müller, JH Brown, JH Rappole, JS Lugo Ramos, K Ruegg, KA Hobson, KE Delmore, KE Delmore, KE Delmore, KE Delmore, KE Delmore, KE Plummer, KG O’Malley, M Caprioli, M Liedvogel, M Liedvogel, M Liedvogel, M Lundberg, N Chernetsov, N Chernetsov, N Saino, N Saino, P Berthold, P Berthold, P Berthold, P Berthold, P Berthold, P Nosil, PP Marra, PR Grant, R Dor, R Dor, R Mettler, R Zink, RJ Safran, RM Zink, S Bearhop, S Lamichhaney, S Rohwer, S Zhan, T Alerstam, T Veen, TD Price, V Salewski, VL Friesen, W Wiltschko, W Wiltschko, W Wiltschko, WW Cochran   +81 more
core   +1 more source

Characteristics and Correlation Study of Mountainous Lake Ice Phenology Changes in Xinjiang, China Based on Passive Microwave Remote Sensing Data

Water
Lake ice phenology directly reflects local climate changes, serving as a key indicator of climate change. In today’s rapidly evolving climate, utilizing advanced remote sensing techniques to quickly extract long-term lake ice phenology features and ...
Yimuran Kuluwan, Y. Rusuli
semanticscholar   +1 more source

Using a social‐ecological macrosystems framework to understand how human activities alter ecological synchrony

People and Nature, EarlyView.
Abstract Different aspects of ecological systems, biotic or abiotic, often fluctuate in coordinated patterns over space and time. Such high concordance between ecological processes is often referred to as ecological synchrony. Human activities, including and beyond climate change, have the potential to alter ecological synchrony by disrupting or ...
Yiluan Song, Mallory Barnes, K. Ann Bybee‐Finley, Kyla M. Dahlin, Travis McDevitt‐Galles, Stephan B. Munch, Guillermo E. Ponce‐Campos, Casey Youngflesh, Benjamin Zuckerberg, Kai Zhu   +9 more
wiley   +1 more source