Positive feedbacks among forest fragmentation, drought, and climate change in the Amazon
The Amazon basin is experiencing rapid forest loss and fragmentation. Fragmented forests are more prone than intact forests to periodic damage from El Niño-Southern Oscillation (ENSO) droughts, which cause elevated tree mortality, increased litterfall, shifts in plant phenology, and other ecological...
| Autor principal: | Laurance, William F. |
|---|---|
| Outros Autores: | Williamson, G. Bruce |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Conservation Biology
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/19100 |
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oai:repositorio:1-19100 |
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dspace |
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oai:repositorio:1-19100 Positive feedbacks among forest fragmentation, drought, and climate change in the Amazon Laurance, William F. Williamson, G. Bruce Climate Change Conservation Drought Ecological Impact Habitat Fragmentation Synergism Tropical Forest South America Bos Taurus The Amazon basin is experiencing rapid forest loss and fragmentation. Fragmented forests are more prone than intact forests to periodic damage from El Niño-Southern Oscillation (ENSO) droughts, which cause elevated tree mortality, increased litterfall, shifts in plant phenology, and other ecological changes, especially near forest edges. Moreover, positive feedbacks among forest loss, fragmentation, fire, and regional climate change appear increasingly likely. Deforestation reduces plant evapotranspiration, which in turn constrains regional rainfall, increasing the vulnerability of forests to fire. Forest fragments are especially vulnerable because they have dry, fire-prone edges, are logged frequently, and often are adjoined by cattle pastures, which are burned regularly. The net result is that there may be a critical "deforestation threshold" above which Amazonian rainforests can no longer be sustained, particularly in relatively seasonal areas of the basin. Global warming could exacerbate this problem if it promotes drier climates or stronger ENSO droughts. Synergisms among many simultaneous environmental changes are posing unprecedented threats to Amazonian forests. 2020-06-15T22:05:22Z 2020-06-15T22:05:22Z 2001 Artigo https://repositorio.inpa.gov.br/handle/1/19100 10.1046/j.1523-1739.2001.01093.x en Volume 15, Número 6, Pags. 1529-1535 Restrito Conservation Biology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Climate Change Conservation Drought Ecological Impact Habitat Fragmentation Synergism Tropical Forest South America Bos Taurus |
| spellingShingle |
Climate Change Conservation Drought Ecological Impact Habitat Fragmentation Synergism Tropical Forest South America Bos Taurus Laurance, William F. Positive feedbacks among forest fragmentation, drought, and climate change in the Amazon |
| topic_facet |
Climate Change Conservation Drought Ecological Impact Habitat Fragmentation Synergism Tropical Forest South America Bos Taurus |
| description |
The Amazon basin is experiencing rapid forest loss and fragmentation. Fragmented forests are more prone than intact forests to periodic damage from El Niño-Southern Oscillation (ENSO) droughts, which cause elevated tree mortality, increased litterfall, shifts in plant phenology, and other ecological changes, especially near forest edges. Moreover, positive feedbacks among forest loss, fragmentation, fire, and regional climate change appear increasingly likely. Deforestation reduces plant evapotranspiration, which in turn constrains regional rainfall, increasing the vulnerability of forests to fire. Forest fragments are especially vulnerable because they have dry, fire-prone edges, are logged frequently, and often are adjoined by cattle pastures, which are burned regularly. The net result is that there may be a critical "deforestation threshold" above which Amazonian rainforests can no longer be sustained, particularly in relatively seasonal areas of the basin. Global warming could exacerbate this problem if it promotes drier climates or stronger ENSO droughts. Synergisms among many simultaneous environmental changes are posing unprecedented threats to Amazonian forests. |
| format |
Artigo |
| author |
Laurance, William F. |
| author2 |
Williamson, G. Bruce |
| author2Str |
Williamson, G. Bruce |
| title |
Positive feedbacks among forest fragmentation, drought, and climate change in the Amazon |
| title_short |
Positive feedbacks among forest fragmentation, drought, and climate change in the Amazon |
| title_full |
Positive feedbacks among forest fragmentation, drought, and climate change in the Amazon |
| title_fullStr |
Positive feedbacks among forest fragmentation, drought, and climate change in the Amazon |
| title_full_unstemmed |
Positive feedbacks among forest fragmentation, drought, and climate change in the Amazon |
| title_sort |
positive feedbacks among forest fragmentation, drought, and climate change in the amazon |
| publisher |
Conservation Biology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/19100 |
| _version_ |
1787142774608363520 |
| score |
11.755432 |