Artigo

Responses of woody plant seedlings to edge formation in a lowland tropical rainforest, Amazonia

Forest fragments surrounded by pasture are likely to be influenced by edge effects. This paper describes short-term effects of edge creation on woody seedling dynamics in an Amazonian lowland rainforest, using data collected between nine months before and 16 months after creation of an abrupt forest...

ver descrição completa

Autor principal: Sizer, Nigel C.
Outros Autores: Tanner, Edmund Vincent John
Grau: Artigo
Idioma: English
Publicado em: Biological Conservation 2020
Assuntos:
Edge Effect
Growth
Habitat Fragmentation
Mortality
Rainforest
Recruitment
Seedling Establishment
South America
Cecropia
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/19200
id oai:repositorio:1-19200
recordtype dspace
spelling oai:repositorio:1-19200 Responses of woody plant seedlings to edge formation in a lowland tropical rainforest, Amazonia Sizer, Nigel C. Tanner, Edmund Vincent John Edge Effect Growth Habitat Fragmentation Mortality Rainforest Recruitment Seedling Establishment South America Cecropia Forest fragments surrounded by pasture are likely to be influenced by edge effects. This paper describes short-term effects of edge creation on woody seedling dynamics in an Amazonian lowland rainforest, using data collected between nine months before and 16 months after creation of an abrupt forest-pasture edge. Starting in December 1989, recruitment, mortality, and growth of plants ≤250 cm tall were monitored in plots located in the interior and at 5, 10, 25, 50, 100 and 250 m from the edge of a 100-ha forest fragment. In each plot, temperature and relative humidity were measured three times, while hemispherical photographs were taken after edge creation to estimate vegetation cover. Seedling recruitment increased along transects at 5 and 10 m from the edge following edge creation; pioneer species (especially Cecropia spp.) were recruited up to 10 m from the edge where they had previously been absent. Seedling mortality did not increase following edge formation. Seedlings within 10 m of the edge exhibited accelerated vertical growth, with a logarithmic decline in the effect with distance from the edge. Increased vertical growth was most pronounced for plants recruited at about the time of edge formation. Temperature and vapor pressure deficit were elevated following edge formation to ca. 50 m into the forest, and both declined exponentially with distance from the edge. Over the first 15 months following edge creation, recruitment and growth of woody seedlings was increased only up to 10 m from new edges, and mortality was unchanged, suggesting that the edge effect for woody seedlings was only about 10 m wide. 2020-06-15T22:06:16Z 2020-06-15T22:06:16Z 1999 Artigo https://repositorio.inpa.gov.br/handle/1/19200 10.1016/S0006-3207(99)00076-2 en Volume 91, Número 2-3, Pags. 135-142 Restrito Biological Conservation
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Edge Effect
Growth
Habitat Fragmentation
Mortality
Rainforest
Recruitment
Seedling Establishment
South America
Cecropia
spellingShingle Edge Effect
Growth
Habitat Fragmentation
Mortality
Rainforest
Recruitment
Seedling Establishment
South America
Cecropia
Sizer, Nigel C.
Responses of woody plant seedlings to edge formation in a lowland tropical rainforest, Amazonia
topic_facet Edge Effect
Growth
Habitat Fragmentation
Mortality
Rainforest
Recruitment
Seedling Establishment
South America
Cecropia
description Forest fragments surrounded by pasture are likely to be influenced by edge effects. This paper describes short-term effects of edge creation on woody seedling dynamics in an Amazonian lowland rainforest, using data collected between nine months before and 16 months after creation of an abrupt forest-pasture edge. Starting in December 1989, recruitment, mortality, and growth of plants ≤250 cm tall were monitored in plots located in the interior and at 5, 10, 25, 50, 100 and 250 m from the edge of a 100-ha forest fragment. In each plot, temperature and relative humidity were measured three times, while hemispherical photographs were taken after edge creation to estimate vegetation cover. Seedling recruitment increased along transects at 5 and 10 m from the edge following edge creation; pioneer species (especially Cecropia spp.) were recruited up to 10 m from the edge where they had previously been absent. Seedling mortality did not increase following edge formation. Seedlings within 10 m of the edge exhibited accelerated vertical growth, with a logarithmic decline in the effect with distance from the edge. Increased vertical growth was most pronounced for plants recruited at about the time of edge formation. Temperature and vapor pressure deficit were elevated following edge formation to ca. 50 m into the forest, and both declined exponentially with distance from the edge. Over the first 15 months following edge creation, recruitment and growth of woody seedlings was increased only up to 10 m from new edges, and mortality was unchanged, suggesting that the edge effect for woody seedlings was only about 10 m wide.
format Artigo
author Sizer, Nigel C.
author2 Tanner, Edmund Vincent John
author2Str Tanner, Edmund Vincent John
title Responses of woody plant seedlings to edge formation in a lowland tropical rainforest, Amazonia
title_short Responses of woody plant seedlings to edge formation in a lowland tropical rainforest, Amazonia
title_full Responses of woody plant seedlings to edge formation in a lowland tropical rainforest, Amazonia
title_fullStr Responses of woody plant seedlings to edge formation in a lowland tropical rainforest, Amazonia
title_full_unstemmed Responses of woody plant seedlings to edge formation in a lowland tropical rainforest, Amazonia
title_sort responses of woody plant seedlings to edge formation in a lowland tropical rainforest, amazonia
publisher Biological Conservation
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/19200
_version_ 1787142441911975936
score 11.653393

Registros relacionados