News tagged with ecological thresholds
Slight changes in climate may trigger abrupt ecosystem responses
Jan 16, 2009 |
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Some of these responses, including insect outbreaks, wildfire, and forest dieback, may adversely affect people as well as ecosystems and their plants and animals.
Search results for ecological thresholds
The value of variation: Ecologists consider the causes and consequences
Jul 22, 2009 |
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Consider the case of the three-spine stickleback. These tiny fish that thrive in oceans and in fresh water might appear to be the same, yet ecologists are finding that they are actually a diverse collection of very specialized ...
Scientists outline planetary boundaries: A safe operating space for humanity
Space & Earth / Earth Sciences
Sep 23, 2009 |
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New approaches are needed to help humanity deal with climate change and other global environmental threats that lie ahead in the 21st century, according to a group of 28 internationally renowned scientists.
Study links ecosystem changes in temperate lakes to climate warming
Biology /
Dec 16, 2008 |
4.5 / 5 (2) |
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Unparalleled warming over the last few decades has triggered widespread ecosystem changes in many temperate North American and Western European lakes, say researchers at Queen's University and the Ontario Ministry of the ...
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Red List overlooks island species
Jul 24, 2009 |
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The criteria of the International Union for the Conservation of Nature (IUCN)'s Red List are an essential tool for evaluating the conservation status of species around the planet, and according to these criteria ...
Ecological speciation by sexual selection on good genes: Is speciation adaptive?
Nov 26, 2009 |
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Darwin suggested that the action of natural selection can produce new species, but 150 years after the publication of his famous book, 'On the Origin of Species', debate still continues on the mechanisms of speciation. New ...
Dead Ahead: Similar Early Warning Signals of Change in Climate, Ecosystems, Financial Markets, Human Health
Sep 02, 2009 |
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(PhysOrg.com) -- What do abrupt changes in ocean circulation and Earth's climate, shifts in wildlife populations and ecosystems, the global finance market and its system-wide crashes, and asthma attacks and ...
Mankind using Earth's resources at alarming rate
Nov 24, 2009 |
3.5 / 5 (22) |
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Humanity would need five Earths to produce the resources needed if everyone lived as profligately as Americans, according to a report issued Tuesday.
Pain thresholds linked to inflammation and sleep problems in arthritis patients
Oct 29, 2009 |
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Despite recent advances in anti-inflammatory therapy, many rheumatoid arthritis (RA) patients continue to suffer from pain. Research published in BioMed Central's open access journal, Arthritis Research & Therapy found that i ...
Combining sun, sand and science in the Bahamas
Sep 29, 2009 |
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It is well known that people from all over the world come to the Bahamas to enjoy the pristine waters, spectacular coral reefs and great fishing. Tourism produces approximately 55 % of the gross domestic product ...
Finding the ASX200 for marine ecosystems
Oct 20, 2009 |
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(PhysOrg.com) -- Researchers are building the environmental equivalent of the ASX200 as a means of monitoring the health of Australian marine ecosystems.
List of search results for ecological thresholds
