Artigo

Complex Effects Of Climate Change: Population Fluctuations In A Tropical Rodent Are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall

We report on the population response of a species of rodent, Necromys lasiurus, to southern oscillation index (SOI) and extent of regional fire in an Amazonian savanna. Information on temporal variation in local abundance of N. lasiurus in a 4.0 ha savanna plot was obtained from 1985 to 1989, from 1...

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Autor principal: Magnusson, William Ernest
Outros Autores: Layme, Viviane Maria Guedes, Lima, Albertina Pimental
Grau: Artigo
Idioma: English
Publicado em: Global Change Biology 2020
Assuntos:
Abundance
Climate Change
Population Decline
Population Density
Rainfall
Rodent
Southern Oscillation
Temperature Effect
Amazonia
Bolomys Lasiurus
Lasiurus
Rattus
Rodentia
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/18280
id oai:repositorio:1-18280
recordtype dspace
spelling oai:repositorio:1-18280 Complex Effects Of Climate Change: Population Fluctuations In A Tropical Rodent Are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall Magnusson, William Ernest Layme, Viviane Maria Guedes Lima, Albertina Pimental Abundance Climate Change Population Decline Population Density Rainfall Rodent Southern Oscillation Temperature Effect Amazonia Bolomys Lasiurus Lasiurus Rattus Rodentia We report on the population response of a species of rodent, Necromys lasiurus, to southern oscillation index (SOI) and extent of regional fire in an Amazonian savanna. Information on temporal variation in local abundance of N. lasiurus in a 4.0 ha savanna plot was obtained from 1985 to 1989, from 1997 to 1998 and 2000-2006, giving data on 14 of the 22 years. Throughout this period, rodent density declined by 90%. Densities were positively associated with SOI and the extent of fire in the region. Rainfall was related to SOI and negatively influenced the extent of fire. However, the amount of rain had no measurable direct effect on rat densities. Thus, small changes in temperature, and consequently fire probability and intensity, may have drastic consequences on the biota of Amazonian savannas, especially in El Niño periods. © 2010 Blackwell Publishing Ltd. 2020-06-15T21:53:17Z 2020-06-15T21:53:17Z 2010 Artigo https://repositorio.inpa.gov.br/handle/1/18280 10.1111/j.1365-2486.2009.02140.x en Volume 16, Número 9, Pags. 2401-2406 Restrito Global Change Biology
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Abundance
Climate Change
Population Decline
Population Density
Rainfall
Rodent
Southern Oscillation
Temperature Effect
Amazonia
Bolomys Lasiurus
Lasiurus
Rattus
Rodentia
spellingShingle Abundance
Climate Change
Population Decline
Population Density
Rainfall
Rodent
Southern Oscillation
Temperature Effect
Amazonia
Bolomys Lasiurus
Lasiurus
Rattus
Rodentia
Magnusson, William Ernest
Complex Effects Of Climate Change: Population Fluctuations In A Tropical Rodent Are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall
topic_facet Abundance
Climate Change
Population Decline
Population Density
Rainfall
Rodent
Southern Oscillation
Temperature Effect
Amazonia
Bolomys Lasiurus
Lasiurus
Rattus
Rodentia
description We report on the population response of a species of rodent, Necromys lasiurus, to southern oscillation index (SOI) and extent of regional fire in an Amazonian savanna. Information on temporal variation in local abundance of N. lasiurus in a 4.0 ha savanna plot was obtained from 1985 to 1989, from 1997 to 1998 and 2000-2006, giving data on 14 of the 22 years. Throughout this period, rodent density declined by 90%. Densities were positively associated with SOI and the extent of fire in the region. Rainfall was related to SOI and negatively influenced the extent of fire. However, the amount of rain had no measurable direct effect on rat densities. Thus, small changes in temperature, and consequently fire probability and intensity, may have drastic consequences on the biota of Amazonian savannas, especially in El Niño periods. © 2010 Blackwell Publishing Ltd.
format Artigo
author Magnusson, William Ernest
author2 Layme, Viviane Maria Guedes
Lima, Albertina Pimental
author2Str Layme, Viviane Maria Guedes
Lima, Albertina Pimental
title Complex Effects Of Climate Change: Population Fluctuations In A Tropical Rodent Are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall
title_short Complex Effects Of Climate Change: Population Fluctuations In A Tropical Rodent Are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall
title_full Complex Effects Of Climate Change: Population Fluctuations In A Tropical Rodent Are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall
title_fullStr Complex Effects Of Climate Change: Population Fluctuations In A Tropical Rodent Are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall
title_full_unstemmed Complex Effects Of Climate Change: Population Fluctuations In A Tropical Rodent Are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall
title_sort complex effects of climate change: population fluctuations in a tropical rodent are associated with the southern oscillation index and regional fire extent, but not directly with local rainfall
publisher Global Change Biology
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/18280
_version_ 1787145432684560384
score 11.653393

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