News tagged with ecological change
Greenhouse gas carbon dioxide ramps up aspen growth
Dec 04, 2009 |
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The rising level of atmospheric carbon dioxide may be fueling more than climate change. It could also be making some trees grow like crazy.
New study ranks 'hotspots' of human impact on coastal areas
Jul 09, 2009 |
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(Santa Barbara, Calif.) -- Coastal marine ecosystems are at risk worldwide as a result of human activities, according to scientists at UC Santa Barbara who have recently published a study in the Journal of ...
Search results for ecological change
Seeing how evolutionary mechanisms yield biological diversity
Dec 22, 2009 |
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An international team of scientists has discovered how changes in both gene expression and gene sequence led to the diversity of visual systems in African cichlid fish.
Mexico's conch shells yield clues into effects of warming
Dec 22, 2009 |
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Divers plumb the turquoise depths of ocean waters some 100 kilometers south of this vacation paradise, in search of the distinctive queen conch shell prized by vacationers and souvenir-seekers.
African leaf-eating monkeys are 'likely to be wiped out' by climate change
Dec 18, 2009 |
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(PhysOrg.com) -- Monkey species will become 'increasingly at risk of extinction' because of global warming, according to new research published this week.
Not easy being green
Dec 18, 2009 |
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(PhysOrg.com) -- It was a battle to save a cherished piece of nature from the forces of economic growth. Preservationists formed groups to present their case, and public figures across the country spoke up ...
Headwater stream nutrient enrichment disrupts food web
Dec 17, 2009 |
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Human activity is increasing the supply of nutrients, such as nitrogen and phosphorus, to stream systems all over the world. The conventional wisdom -- bolstered by earlier research -- has held that these additional nutrients ...
Even at sublethal levels, pesticides may slow the recovery of wild salmon populations
Dec 16, 2009 |
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Biologists determined that short-term, seasonal exposure to pesticides in rivers and basins may limit the growth and size of wild salmon populations. In addition to the widespread deterioration of salmon habitats, these findings ...
Evolution may take giant leaps
Dec 11, 2009 |
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(PhysOrg.com) -- A new study of thousands of species of plants and animals suggests new species may arise from rare events instead of through an accumulation of small changes made in response to changes in ...
New science estimates carbon storage potential of US lands
Dec 10, 2009 |
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The first phase of a groundbreaking national assessment estimates that U.S. forests and soils could remove additional quantities of carbon dioxide (CO2) from the atmosphere as a means to mitigate climate change.
Old hay and Alpine ibex horns reveal how grasslands respond to climate change
Dec 10, 2009 |
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How do plant ecosystems react to rising concentrations of the greenhouse gas CO2 in the atmosphere over the long term? This fundamental question is becoming increasingly pressing in light of global climate ...
Tropical forests affected by habitat fragmentation store less biomass and carbon dioxide
Dec 09, 2009 |
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Deforestation in tropical rain forests could have an even greater impact on climate change than has previously been thought. The combined biomass of a large number of small forest fragments left over after ...
List of search results for ecological change
