Climate change alters bird migration patternsFebruary 27th, 2012 - 1:02 pm ICT by IANS
Washington, Feb 27 (IANS) Rising temperatures, triggered by climate change, are forcing birds to alter their migration patterns.
The finding is based on data from eBird, a database containing 10 years’ worth of observations from amateur birdwatchers. Since 2002, eBird has collected more than 48 million bird observations from roughly 35,000 contributors.
Allen Hurlbert, assistant professor of biology at the University of North Carolina-Chapel Hill, and his team analyzed when 18 different bird species arrived at various points across their migration journeys, the journal Public Library of Science reports.
“Timing of bird migration is something critical for the overall health of bird species,” he said. “They have to time it right so they can balance arriving on breeding grounds after there’s no longer a risk of severe winter conditions.
“If they get it wrong, they may die or may not produce as many young. A change in migration could begin to contribute to population decline, putting many species at risk for extinction,” a North Carolina statement quoted Hurlbert as saying.
Although eBird only contains a decade of amateur-submitted data, versus several decades of data compiled by select bird observatories, the information it contains provides greater geographic coverage.
- DNA can predict which Chernobyl species are at risk of radioactive damage - Aug 21, 2010
- Sensors help track bird calls to monitor climate change - Jul 26, 2011
- Colourful birds evolve faster - May 14, 2012
- Long distance migratory birds 'more vulnerable to climate shifts' - Sep 26, 2010
- Birds learn migratory destinations from parents - Nov 17, 2010
- Eating location, food source determine childhood obesity - Jul 25, 2011
- Rising temperatures could render some species homeless - Nov 07, 2011
- Soon, virtual book of all life on Earth - Jun 02, 2009
- A fifth of world's life at extinction risk - Oct 27, 2010
- Study shows extinction's ripple effect through the animal kingdom - Mar 08, 2011
- Are house sparrows being driven away? (March 20 is World Sparrow Day) - Mar 19, 2012
- A fifth of world's life at extinction risk: Report - Oct 27, 2010
- Climate change caused mass extinction of mammals 50,000 years ago - May 19, 2010
- Warming oceans killing seaweed - Oct 28, 2011
- Link between high-fat diets, type 2 diabetes clarified - Apr 12, 2011
Tags: bird migration patterns, bird observations, bird observatories, bird species, birdwatchers, breeding grounds, climate change, ebird, extinction, geographic coverage, hurlbert, journeys, north carolina chapel hill, population decline, public library of science, science reports, species at risk, university of north carolina, university of north carolina chapel hill, winter conditions