19106 research outputs found
Sort by
FIRED Angola Nov 2000 - July 2024
No full textThis is event-level polygons for the fire event delineation (FIRED) product for ANGOLA from November 2000 to July 2024. It is derived from the MODIS MCD64A1 burned area product (see https://lpdaac.usgs.gov/products/mcd64a1v061/ for more details). The MCD64A1 is a monthly raster grid of estimated burned dates. Firedpy (https://github.com/earthlab/firedpy) is an algorithm that converts these rasters into events by stacking the entire time series into a spatial-temporal data cube, then uses an algorithm to assign event identification numbers to pixels that fit into the same 3-dimensional spatial temporal window. This particular dataset was created using a spatial parameter of 1 pixels and 5 days. Daily polygons are included and the event identification numbers are the same for both files, but the event-level product has only single polygons for each entire event, while the daily product has separate polygons for each date per event. See the associated paper for more details on the methods and more:Balch, J.K.; St. Denis, L.A.; Mahood, A.L.; Mietkiewicz, N.P.; Williams, T.M.; McGlinchy, J.; Cook, M.C. FIRED (Fire Events Delineation): An Open, Flexible Algorithm and Database of US Fire Events Derived from the MODIS Burned Area Product (2001–2019). Remote Sens. 2020, 12, 3498. https://doi.org/10.3390/rs12213498</p
US Television Coverage of Climate Change or Global Warming, 2000-2024 - January 2024
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
Latin American Newspaper Coverage of Climate Change or Global Warming, 2005-2023 - January 2024
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
World Radio Coverage of Climate Change or Global Warming, 2000-2024 - January 2024
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
Australian Newspaper Coverage of Climate Change or Global Warming, 2000-2023 - December 2023
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
Canadian Newspaper Coverage of Climate Change or Global Warming, 2000-2024 - May 2024
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
European Newspaper Coverage of Climate Change or Global Warming, 2004-2024 - March 2024
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
Asian Newspaper Coverage of Climate Change or Global Warming, 2004-2024 - April 2024
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
Russian Newspaper Coverage of Climate Change or Global Warming, 2000-2024 -May 2024
No full textThe Media and Climate Change Observatory Data monitors 131 sources (across newspapers, radio and TV) in 59 countries in seven different regions around the world. Data is assembled by accessing archives through the Lexis Nexis, Proquest and Factiva databases via the University of Colorado libraries. More information may be found at: http://mecco.colorado.edu.</p
An Investigation of Nocturnal Activity in American Pikas (Ochotona princeps) Using Camera Traps Along a Temperature Gradient
No full textBackground A decline is expected in the range of the American pika (Ochotona princeps), a sentinel species of the alpine tundra, due to warming temperatures. The extent of this decline will partly depend on the potential for behavioral adaptability in this species.
Aim or purpose of research This study assessed pika activity and the potential for increased nocturnality as a form of behavioral adaptability in sites across a temperature/elevational gradient in the Front Range of the Colorado Rocky Mountains. Camera traps were used to allow continuous observation.
Methods used Utilizing seven sites along the temperature/elevation gradient to model climate change, behavioral data was collected from pikas inhabiting sites at different elevations and slope aspects on Niwot Ridge, Boulder County, Colorado, USA. The number of “daytime” and “nighttime” captures were modeled as linear functions of elevation and slope aspect or daytime temperature to infer temperature effects on pika nocturnal activity.
Findings and Conclusion Pika activity, both during daytime and nighttime were inversely related with mean daytime temperatures across the temperature/elevation gradient. Pikas did not exhibit significantly increased nocturnal activity at sites with southern aspects or warmer mean daytime temperature. These findings do not exclude the possibility that pikas may exhibit increased nocturnality in the future or at lower elevation sites. Almost 15% of pika captures in this high elevation study were nighttime captures; this statistic showed that pikas were one of the most nocturnal of the several diurnal species observed in this study. Camera traps allowed continuous observation, but automated harvesting of data was a problem in this study.
</p