The Role of Environmental Heterogeneity in the Seed Rain Pattern
Tipo de material:
ArtigoAssunto(s): Recursos online:
Em: Floresta e Ambiente (Brazil) v. 26(special number n.1) p. 1-10; (2019)Sumário:
ABSTRACT
We focus on understanding the influence of environmental variables on ecological processes, and
such a focus promotes an integrated view of forest ecological patterns. The following questions
were made: Do variations in temperature, precipitation, litterfall deposition and light intensity
influence the density and composition of seed rain in a stretch of the Montane Atlantic Rainforest?
Is there a pattern for dispersal syndrome in Montane Atlantic,? Over a period of 12 months, the
deposition patterns of seed rains were evaluated. Seed density and species richness correlated
with temperature and precipitation, with species richness decreasing with increasing altitude
and seed density increasing as a function of the light incidence. Seed rain followed a seasonal
deposition pattern with higher seed density and species richness in the higher rainfall period.
Increasing trend in seed density was found in mountainous areas with northern and northeastern
aspects (higher light incidences).
Keywords: dispersal, ecology, light incidence, litterfall.
| Tipo de material | Biblioteca atual | Coleção | Número de chamada | Informaçaõ do volume | Situação | Devolução em | Código de barras |
|---|---|---|---|---|---|---|---|
Periódicos
|
Biblioteca Nacional de Agricultura - Binagri Agrobase - Periódicos | Periódicos agrícolas | 2019 26( n. especial 1) | Online | 2025-0453 |
Publicação on-line; 35 ref.; 4 tables; 3 illus.; Summary (En)
ABSTRACT
We focus on understanding the influence of environmental variables on ecological processes, and
such a focus promotes an integrated view of forest ecological patterns. The following questions
were made: Do variations in temperature, precipitation, litterfall deposition and light intensity
influence the density and composition of seed rain in a stretch of the Montane Atlantic Rainforest?
Is there a pattern for dispersal syndrome in Montane Atlantic,? Over a period of 12 months, the
deposition patterns of seed rains were evaluated. Seed density and species richness correlated
with temperature and precipitation, with species richness decreasing with increasing altitude
and seed density increasing as a function of the light incidence. Seed rain followed a seasonal
deposition pattern with higher seed density and species richness in the higher rainfall period.
Increasing trend in seed density was found in mountainous areas with northern and northeastern
aspects (higher light incidences).
Keywords: dispersal, ecology, light incidence, litterfall.
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