Chuva de sementes em uma floresta de galeria no Parque do Bacaba, em Nova Xavantina, Mato Grosso, Brasil

Lagos, Maria do Carmo Correa; Marimon, Beatriz Schwantes

doi:10.1590/s0100-67622012000200012

Cited by 5 publications

(3 citation statements)

References 22 publications

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“…The absolute density of seeds found in the area resembles other studies in semideciduous forests (Araujo, Longhi, Barros, & Brena, 2004;Marimon & Felfili, 2006;Lagos & Marimon, 2012). However, the total density of seed deposition and the number of species in the seed rain are below the values observed for tropical forests (Grombone-Guaratini & Rodrigues, 2002;Hardesty & Parker, 2002;Marimon & Felfili, 2006;Martini & Santos, 2007).…”

Section: Discussionsupporting

confidence: 77%

Seed deposition in the edge-interior gradient of a degraded fragment of tropical semideciduous forest, Northeastern Brazil.

Diogo

Fortunato

Costa

2015

RBT

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La estructura, dinámica y densidad de poblaciones de plantas en diferentes ecosistemas son controladas por estacionalidad climática. La lluvia de semillas contribuye tanto al establecimiento y mantenimiento de los bosques, así como a la recuperación de áreas alteradas cerca de los fragmentos de bosque. El objetivo de este estudio es evaluar la tasa de deposición de diferentes semillas de especies endémicas y exóticas de árboles tanto al borde y como al interior del bosque. El área de estudio es un fragmento de bosque de 4 hectáreas ubicado en el campus de la Universidad Federal de Ceará. Para medir la lluvia de semillas, 80 recolectores fueron suspendidos a 20 cm del suelo. Las muestras fueron recolectadas mensualmente durante un año (Junio 2009-Mayo 2010), el material fue analizado en el laboratorio y las diásporas (frutos y semillas) fueron cuantificadas e identificadas taxonómicamente. Encontramos 23 383 semillas pertenecientes a 38 familias y 89 especies, con una densidad de 1 134.48 semillas m². Las familias Rubiaceae y Fabaceae fueron las más representativas, con mayor cantidad de semillas. La deposición de la lluvia de semillas fue influenciada por la estacionalidad y, en consecuencia por la temperatura y la precipitación. Existe una clara diferenciación entre el borde y el interior del bosque, una gran cantidad de semillas nativas con dispersión por animales y de dispersión tardía están presentes en el interior del bosque, comparado a un considerable número de semillas pertenecientes a especies no nativas con dispersión abiótica en el borde del bosque. Fragmentos pequeños como este pueden servir como una fuente importante de semillas para las áreas degradadas adyacentes, lo que demuestra la importancia de la conservación y manejo de pequeños fragmentos para evitar la degradación causada por los efectos de borde.

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Section: Discussionsupporting

confidence: 77%

Seed deposition in the edge-interior gradient of a degraded fragment of tropical semideciduous forest, Northeastern Brazil.

Diogo

Fortunato

Costa

2015

RBT

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“…In the present study, the fresh mass of the seeds deposited under the artificial perches was much greater during the rainy season, which indicates that the plants fruiting during this period tend to have larger seeds (Grombone-Guaratini and Rodrigues 2002;Jordano et al 2006). In Nova Xavantina, Mato Grosso do Sul state, Lagos and Marimon (2012) also found that the biomass of zoochoric seeds in seed traps (with no artificial perches) was higher during the rainy season, and Graham and Page (2012) also showed that the accumulated weight of seed biomass was greater in the rainy season and in traps under artificial perches in comparison with control traps, regardless of the distance from the edge of the forest.…”

Section: Discussionmentioning

confidence: 86%

Artificial perches for the supply of seeds in a fragmented landscape in southwest Brazilian Amazon

Alencar

Guilherme

2020

Braz. J. Bot

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Artificial perches can provide an important supply of seeds and contribute to ecological restoration. In the present study, we verified the effectiveness of artificial perches for the dispersal of seeds in an area of the southwest Brazilian Amazon. We conducted the study on the Catuaba Experimental Farm in State of Acre, Brazil, from March 2016 to March 2017. We installed seed traps with artificial perches and control traps at different distances from the adjacent forest. We collected 19,865 seeds in boxes under the artificial perches and 1300 in the control traps. There was greater richness of plant species and abundance of seeds in the boxes under the artificial perches when compared with the control traps. The artificial perches at a distance of 40 m from the adjacent forest presented a greater species richness and distinct composition of plants. The quantity of dispersed seeds did not correlate with precipitation, although there was a correlation between rainfall and the fresh seed mass. The artificial perches were efficient at dispersing seeds and are a low-cost technique that can be used as a strategy for the regeneration of forests in degraded areas.

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“…A maior produção de sementes foi obtida no final do período seco e início da fase chuvosa, resultados também reportados em outras formações florestais (PENHALBER; MANTOVANI, 1997;GROMBRONE-GUARATINI;RODRIGUES, 2002;ARAUJO et al, 2004;VIEIRA;GANDOLFI, 2006;LAGOS;MARIMON, 2012).…”

Section: Discussionunclassified

Chuva de sementes em remanescentes florestais de Campo Verde, MT

Pietro-Souza¹,

Silva²,

Campos³

2014

Rev. Árvore

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Chuva de sementes em uma floresta de galeria no Parque do Bacaba, em Nova Xavantina, Mato Grosso, Brasil

Cited by 5 publications

References 22 publications

Seed deposition in the edge-interior gradient of a degraded fragment of tropical semideciduous forest, Northeastern Brazil.

Seed deposition in the edge-interior gradient of a degraded fragment of tropical semideciduous forest, Northeastern Brazil.

Artificial perches for the supply of seeds in a fragmented landscape in southwest Brazilian Amazon

Chuva de sementes em remanescentes florestais de Campo Verde, MT

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