Habitat fragmentation and its lasting impact on Earth’s ecosystems

Urgent need for conservation and restoration measures to improve landscape connectivity. We conducted an analysis of global forest cover to reveal that 70% of remaining forest is within 1 km of the forest’s edge, subject to the degrading effects of fragmentation. A synthesis of fragmentation experim...

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Vydáno v:Science advances Ročník 1; číslo 2; s. e1500052
Hlavní autoři: Haddad, Nick M., Brudvig, Lars A., Clobert, Jean, Davies, Kendi F., Gonzalez, Andrew, Holt, Robert D., Lovejoy, Thomas E., Sexton, Joseph O., Austin, Mike P., Collins, Cathy D., Cook, William M., Damschen, Ellen I., Ewers, Robert M., Foster, Bryan L., Jenkins, Clinton N., King, Andrew J., Laurance, William F., Levey, Douglas J., Margules, Chris R., Melbourne, Brett A., Nicholls, A. O., Orrock, John L., Song, Dan-Xia, Townshend, John R.
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States American Association for the Advancement of Science (AAAS) 01.03.2015
American Association for the Advancement of Science
Témata:
Applied Ecology
Ecology
Ecology, environment
Ecosystems
Environmental Sciences
Global Changes
Life Sciences
SciAdv r-articles
forest
biodiversity
landscape connectivity
ecosystems
habitat fragmentation
ISSN:2375-2548, 2375-2548
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Shrnutí:Urgent need for conservation and restoration measures to improve landscape connectivity. We conducted an analysis of global forest cover to reveal that 70% of remaining forest is within 1 km of the forest’s edge, subject to the degrading effects of fragmentation. A synthesis of fragmentation experiments spanning multiple biomes and scales, five continents, and 35 years demonstrates that habitat fragmentation reduces biodiversity by 13 to 75% and impairs key ecosystem functions by decreasing biomass and altering nutrient cycles. Effects are greatest in the smallest and most isolated fragments, and they magnify with the passage of time. These findings indicate an urgent need for conservation and restoration measures to improve landscape connectivity, which will reduce extinction rates and help maintain ecosystem services.
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ISSN:2375-2548
2375-2548
DOI:10.1126/sciadv.1500052