Climate change is making North American forests more vulnerable to insects and disease but is helping some trees grow faster and increase their resistance to pests, a team of researchers from Dartmouth College said Monday.Researchers reviewed almost 500 scientific studies dating back to the 1950s to produce what they called the most comprehensive review of the affect of climate change on the forests that cover about one-third of North America. The effort was undertaken as part of the National Climate Assessment in 2012…read the article
“Global studies of wildfire patterns are rare. But a paper published last year in the journal Ecosphere predicted that climate change would have an effect on wildfires that varies widely, especially in accordance with a given region’s precipitation patterns.”
“The paper — which focused on climate change but not other variables, like changing land management — projected that dry parts of the middle latitudes and Australia are likely to see more fires over the long term. The American West, already a tinderbox, will become more fire-prone. So, too, will high-latitude areas, the study found, partly because the carbon-rich peat soil there will burn under extreme weather conditions.”
ESA News Release:
“When we think of animal migrations, we tend to think of all individuals in a populations getting up and leaving at the same time, but it’s not as simple as that,” said first author Yannis Papastamatiou of the University of Florida. “Some are resident and some are transient.”
A quarter of the mature female tiger sharks plying the waters around the remote coral atolls of the Northwestern Hawaiian Islands decamp for the populated Main Hawaiian Islands in the late summer and fall, swimming as far as 2,500 kilometers (1,500 miles) according to new research from University of Florida and the University of Hawaii. Their report is scheduled for publication in the November 2013 issue of Ecological Society of America’s journal Ecology. The authors’ manuscript is available as a preprint.