Data/hora: 31/05/2024 10:03:57

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 16/08/1995
Data da última atualização: | 06/04/2017
Autoria: | MORENO, J. M.; OECHEL, W. C.
Título: | Fire intensity and herbivory effects on postfire resprouting of Adenostoma fasciculatum in southern California chaparral.
Ano de publicação: | 1991
Fonte/Imprenta: | Oecologia, v.85, p.429-433, 1991.
Idioma: | Inglês
Conteúdo: | Resprouting is the main regeneration mechanism after fire in Mediterranean-type ecosystems. Herbivores play an important role in controlling postfire seedling establishment, but their influence on regeneration resprounting is less well known. To study the effetcs of fire intensity on resprounting of Adenostoma fasciculatum in southern California chaparral and its interactions with herbivory, we conducted an experimental burn at three level of fire intensity. We found that increasing fire intensity increased plant mortality, reduced the number of resproust per plant and delayed the time of resprounting. Herbivory increased with fire intensity and was related to the time of resprounting. Plants resprounting later in the season and out of synchrony with the main flush were attacked more readily by herbivores. Post-resprounting mortality also increased with fire intensity and was significantly associated with herbovory in the higher fire intensity plots. Fire intensity effects on chaparral regeneration by resprounting may be parreaching throught effects on the population structure, resprout production and growth of Adenostoma fasciculatum.
Palavras-Chave: | Fire; Herbivoro; Herbivory.
Thesagro: | Ecologia; Fogo.
Thesaurus Nal: | Adenostoma fasciculatum; ecology.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (29260-1) - ADD - SP - PP - SP14531 -  - 14531 - DIS