Chuva de sementes em uma área de vegetação de Caatinga no estado de Pernambuco

Lima, Aurenívia Bonifácio de; Rodal, Maria Jesus Nogueira; Silva, Ana Carolina Borges Lins e

doi:10.1590/2175-7860200859402

Cited by 10 publications

(16 citation statements)

References 27 publications

(16 reference statements)

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“…Moreover, the predominant dispersal syndrome in dry environments tends to vary with aridity and the predominance of life forms (herbs, vines, shrubs or trees). In some dry forests, dispersal by animals predominates (Griz & Machado 2001;Jara-Guerreiro et al 2011;Mart ınez-Garza et al 2011)' however, in other forests (primarily in semiarid environments), self-dispersal and wind dispersal predominate in both mature (Machado et al 1997;Ara ujo et al 2007;Lima et al 2008) and anthropogenic-disturbed forests (Teegalapalli et al 2010), as reported in our study. Nonetheless, despite the predominance of autochorous species in our study, species dispersed by animals were least represented in the young forest, indicating that dispersal by animals has not yet been completely re-established.…”

Section: Factors Limiting Seed Rain and Implications For Recolonisatisupporting

confidence: 72%

“…Most species absent from both forests were autochorous, possibly reflecting the predominance of Mimosaceae, Fabaceae, Caesalpiniaceae and Euphorbiaceae in the caatinga vegetation, most of which have autochorous dispersal (Lima et al . ; Souza ).…”

Section: Discussionmentioning

confidence: 99%

“…; Lima et al . ) and anthropogenic‐disturbed forests (Teegalapalli et al . ), as reported in our study.…”

Section: Discussionmentioning

confidence: 99%

“…Assuming the 41 species unique to the young forest do not disappear during the succession process, these results also suggest that the recolonisation of abandoned agricultural areas may lead to forests that differ floristically from those originally present. Most species absent from both forests were autochorous, possibly reflecting the predominance of Mimosaceae, Fabaceae, Caesalpiniaceae and Euphorbiaceae in the caatinga vegetation, most of which have autochorous dispersal (Lima et al 2008;Souza 2010).…”

Section: Time Of Regeneration and Recovery Of Species Compositionmentioning

confidence: 99%

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Does proximity to a mature forest contribute to the seed rain and recovery of an abandoned agriculture area in a semiarid climate?

et al. 2013

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Proximity to forests contributes to the recolonisation of anthropogenic-disturbed areas through seed input. We evaluated the role of proximity to a mature forest in the recolonisation of an agricultural area that has been abandoned for 18 years and is currently a young forest. Seed rain was monitored at fixed distances from the mature forest. The type of surface recolonisation (germination versus resprouting) and the reproductive season were measured in both forests. The majority of plants recolonising the young forest originated from seed germination. Proximity to the mature forest contributed to the seed rain in the young forest; however, 18 years has not provided sufficient time for the recolonisation of 80 species present in the mature forest. Some species shared between forests differed in their fruiting season and seed dispersal. The seed rain had a total species richness of 56, a total density of 2270 seeds·m(-2)·year(−1) and predominance of self- and wind dispersal. A significant reduction in seed rain with increasing distance from the mature forest was observed. The young forest contained 35 species not observed in the mature forest, and the floristic similarity between the two forests was 0.5, indicating that the two forests are floristically distinct.

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Section: Factors Limiting Seed Rain and Implications For Recolonisatisupporting

confidence: 72%

Section: Discussionmentioning

confidence: 99%

“…; Lima et al . ) and anthropogenic‐disturbed forests (Teegalapalli et al . ), as reported in our study.…”

Section: Discussionmentioning

confidence: 99%

Section: Time Of Regeneration and Recovery Of Species Compositionmentioning

confidence: 99%

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Does proximity to a mature forest contribute to the seed rain and recovery of an abandoned agriculture area in a semiarid climate?

et al. 2013

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“…Assim como algumas autocóricas possuem seus frutos dispersos secundariamente por animais, as anemocóricas possuem mecanismos diferenciados de dispersão. Um exemplo é em Herissantia crispa que, além de se dispersar sozinha, também foi considerada epizoocórica (Lima et al 2008, Judd et al 2009), pois seus propágulos são transportados no exterior do corpo de alguns animais, como aves e mamíferos. A dispersão pelo vento também pode ser facilitada por tufo de pelos nas sementes (Judd et al 2009), o que foi constatado em Calotropis procera.…”

Section: Resultsunclassified

Síndromes de dispersão de Angiospermas em uma Unidade de Conservação na Caatinga, SE, Brasil

Silva

Prata

Mello

et al. 2013

Hoehnea

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-(Diaspore dispersal syndromes of Angiospems in a Protected Area in the Caatinga, Sergipe State, Brazil). The present study aimed to characterize the types of fruits and strategies of propagule dispersal of Angiosperms in the Grota do Angico Natural Monument, municipalities of Canindé de São Francisco and Poço Redondo, Sergipe State, Brasil. The characterization of the fruits and syndromes was based on the analysis of fruits collected in an area of 251 ha. We sampled 24 families and 67 species, the most representative families were Fabaceae, Euphorbiaceae, Bromeliaceae and Cactaceae. There was a prevalence of dry fruits (68.7%) and ten types of fruits were found, being legume, capsule and berry the most common. Abiotic vectors prevailed in the study area (61.2%). The primary dispersal syndromes were autocory (43.3%), followed by zoochory (38.8%) and anemochory (17.9%). The autochory also prevailed in the herbaceous-subshub (52.2%) and woody-shrub (45.7%), however, it showed only a small percentage of difference when compared to zoochory. Key words: anemochory, autochory, fruits, zoochory RESUMO -(Síndromes de dispersão de Angiospermas em uma Unidade de Conservação na Caatinga, SE, Brasil). O presente estudo teve por objetivos caracterizar os tipos de frutos e as síndromes de dispersão de Angiospermas no Monumento Natural Grota do Angico, localizado nos municípios de Canindé de São Francisco e Poço Redondo, SE, Brasil. A caracterização dos frutos e das síndromes foi baseada na análise do material coletado em uma área de 251 ha. Foram amostradas 67 espécies e 24 famílias, das quais Fabaceae, Euphorbiaceae, Bromeliaceae e Cactaceae, foram as mais representativas. Houve o predomínio de frutos secos (68,7%) e dez tipos de frutos foram encontrados, sendo os mais comuns os do tipo legume, cápsula e baga. Vetores abióticos predominaram na área de estudo (61,2%). A principal síndrome de dispersão foi a autocoria (43,3%), seguida pela zoocoria (38,8%) e anemocoria (17,9%). A autocoria também prevaleceu nos estrato herbáceo-subarbustivo (52,2%) e arbustivo-arbóreo (45,7%), entretanto apresentou pequena diferença percentual em relação à zoocoria.

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Spatio-temporal variation in a seed bank of a semi-arid region in northeastern Brazil

Silva

Santos

et al. 2013

Acta Oecologica

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Chuva de sementes em uma área de vegetação de Caatinga no estado de Pernambuco

Cited by 10 publications

References 27 publications

Does proximity to a mature forest contribute to the seed rain and recovery of an abandoned agriculture area in a semiarid climate?

Does proximity to a mature forest contribute to the seed rain and recovery of an abandoned agriculture area in a semiarid climate?

Síndromes de dispersão de Angiospermas em uma Unidade de Conservação na Caatinga, SE, Brasil

Spatio-temporal variation in a seed bank of a semi-arid region in northeastern Brazil

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