Artigo

Seed rain and advance regeneration in secondary succession in the Brazilian Amazon

Succession in the Brazilian Amazon depends on prior land-use history. Abandoned clearcuts become dominated by Cecropia trees and exhibit species replacements characteristic of natural succession in forest lightgaps. In contrast, abandoned pastures are dominated by Vismia trees that inhibit natural s...

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Autor principal: Wieland, Lindsay M.
Outros Autores: Mesquita, Rita de Cássia Guimarães, Bobrowiec, Paulo Estefano Dineli, Bentos, Tony Vizcarra, Williamson, G. Bruce
Grau: Artigo
Idioma: English
Publicado em: Tropical Conservation Science 2020
Assuntos:
Aves
Cecropia
Vismia
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/16218
id oai:repositorio:1-16218
recordtype dspace
spelling oai:repositorio:1-16218 Seed rain and advance regeneration in secondary succession in the Brazilian Amazon Wieland, Lindsay M. Mesquita, Rita de Cássia Guimarães Bobrowiec, Paulo Estefano Dineli Bentos, Tony Vizcarra Williamson, G. Bruce Aves Cecropia Vismia Succession in the Brazilian Amazon depends on prior land-use history. Abandoned clearcuts become dominated by Cecropia trees and exhibit species replacements characteristic of natural succession in forest lightgaps. In contrast, abandoned pastures are dominated by Vismia trees that inhibit natural succession for a decade or more. Here we explore how advance regeneration and limited seed dispersal may contribute to the arrested succession in Vismia-dominated stands. Vegetation surveys showed that every Vismia stem in 3-8 year old Vismia stands originated as a re- sprout. In Cecropia stands, all tree species, including Vismia, originated mostly from seeds, after deforestation and abandonment. The 100% re-sprouts of Vismia in the abandoned pastures confirms that Vismia dominance results from re-sprouting following pasture fires. Seed rain in both Vismia and Cecropia dominated stands was limited almost exclusively to second growth species already reproducing in those stands, suggesting that the bats and birds foraging there were not bringing mature forest seeds into the second growth, but simply feeding and depositing local second growth species. As dispersal was similar in both stand types, dispersal differences cannot account for the ongoing dominance of Vismia relative to the ongoing successional transitions in Cecropia stands. Overall, advance regeneration in the form of Vismia re-sprouts is much more likely to be the driver of Vismia dominated succession than differential dispersal of mature forest seeds. In order to avoid extensive forest conversion into unproductive Vismia wastelands in the Amazon Basin, forestry permits for harvesting timber should include restrictions on subsequent anthropogenic degradation, such as conversion to pasture and prescribed burning. © Lindsay M. Wieland, Rita C. G. Mesquita, Paulo Estefano D. Bobrowiec, Tony V. Bentos, and G. Bruce Williamson. 2020-05-31T18:24:29Z 2020-05-31T18:24:29Z 2011 Artigo https://repositorio.inpa.gov.br/handle/1/16218 10.1177/194008291100400308 en Volume 4, Número 3, Pags. 300-316 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Tropical Conservation Science
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
topic Aves
Cecropia
Vismia
spellingShingle Aves
Cecropia
Vismia
Wieland, Lindsay M.
Seed rain and advance regeneration in secondary succession in the Brazilian Amazon
topic_facet Aves
Cecropia
Vismia
description Succession in the Brazilian Amazon depends on prior land-use history. Abandoned clearcuts become dominated by Cecropia trees and exhibit species replacements characteristic of natural succession in forest lightgaps. In contrast, abandoned pastures are dominated by Vismia trees that inhibit natural succession for a decade or more. Here we explore how advance regeneration and limited seed dispersal may contribute to the arrested succession in Vismia-dominated stands. Vegetation surveys showed that every Vismia stem in 3-8 year old Vismia stands originated as a re- sprout. In Cecropia stands, all tree species, including Vismia, originated mostly from seeds, after deforestation and abandonment. The 100% re-sprouts of Vismia in the abandoned pastures confirms that Vismia dominance results from re-sprouting following pasture fires. Seed rain in both Vismia and Cecropia dominated stands was limited almost exclusively to second growth species already reproducing in those stands, suggesting that the bats and birds foraging there were not bringing mature forest seeds into the second growth, but simply feeding and depositing local second growth species. As dispersal was similar in both stand types, dispersal differences cannot account for the ongoing dominance of Vismia relative to the ongoing successional transitions in Cecropia stands. Overall, advance regeneration in the form of Vismia re-sprouts is much more likely to be the driver of Vismia dominated succession than differential dispersal of mature forest seeds. In order to avoid extensive forest conversion into unproductive Vismia wastelands in the Amazon Basin, forestry permits for harvesting timber should include restrictions on subsequent anthropogenic degradation, such as conversion to pasture and prescribed burning. © Lindsay M. Wieland, Rita C. G. Mesquita, Paulo Estefano D. Bobrowiec, Tony V. Bentos, and G. Bruce Williamson.
format Artigo
author Wieland, Lindsay M.
author2 Mesquita, Rita de Cássia Guimarães
Bobrowiec, Paulo Estefano Dineli
Bentos, Tony Vizcarra
Williamson, G. Bruce
author2Str Mesquita, Rita de Cássia Guimarães
Bobrowiec, Paulo Estefano Dineli
Bentos, Tony Vizcarra
Williamson, G. Bruce
title Seed rain and advance regeneration in secondary succession in the Brazilian Amazon
title_short Seed rain and advance regeneration in secondary succession in the Brazilian Amazon
title_full Seed rain and advance regeneration in secondary succession in the Brazilian Amazon
title_fullStr Seed rain and advance regeneration in secondary succession in the Brazilian Amazon
title_full_unstemmed Seed rain and advance regeneration in secondary succession in the Brazilian Amazon
title_sort seed rain and advance regeneration in secondary succession in the brazilian amazon
publisher Tropical Conservation Science
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/16218
_version_ 1787143550008295424
score 11.755432

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