Dispersal of seeds of Hymenaea courbaril (Fabaceae) in a logged rain forest in the Peruvian Amazonian

Gorchov, David L.; Palmeirim, Jorge M.; Ascorra, César

doi:10.1590/s0044-59672004000200014

Cited by 26 publications

(9 citation statements)

References 35 publications

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“…Os representantes de Hymenaea são popularmente conhecidos como jatobá, burandã, farinheira, jataí, jutaí, jataíba, jataiba-peba, jataíbauva, jataúba, juteí, jataí-amarelo, jataí-vermelho, jatal, jati, jassaí, jatobá de anta, jatobá de porco, jatabá trapuca, jetaí, jetaíba, jupiti, jutaí-açu, árvore-copal-do-Brasil, abotii-timbaí e jataici (Lorenzi & Matos 2008). Hymenaea courbaril é geralmente uma árvore de grande porte, com folhas compostas por dois folíolos, inflorescência em panículas terminais e frutos em forma de vagens indeiscentes, apresentando de 6 a 8 sementes, envoltas por uma farinha comestível de grande valor nutritivo, consumida pelo homem como alimento e por animais, principalmente roedores (Gorchov et al 2004).…”

Section: Introductionunclassified

Caracterização morfoanatômica, fitoquímica e histoquímica de Hymenaea courbaril (Leguminosae), ocorrente na Amazônia Meridional

et al. 2020

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Resumo Este estudo objetivou caracterizar a morfoanatomia, histoquímica e fitoquímica dos órgãos vegetativos de Hymenea courbaril, visando detectar estruturas secretoras ou células secretoras que armazenam metabólitos secundários, cujas atribuições conferem potencial medicinal à espécie. A coleta do material vegetal foi realizada em indivíduos nativos de H. courbaril no município de Alta Floresta, MT. O material botânico (folíolos e caule) foi fixado, foram realizadas secções transversais e paradérmicas nos órgãos, montadas em lâminas histológicas e o material fresco foi submetido a testes histoquímicos e fitoquímicos. Foram detectados canais de secreção no folíolo e caule de H. courbaril, a caracterização fito-histoquímica deu positivo para metabólitos secundários como taninos, esteroides, flavonoides, compostos fenólicos, lipídios, saponinas e glicosídeos, a presença destes compostos pode conferir à espécie atividades biológicas importantes no tratamento de diversos tipos de doenças. Além disso, tais substâncias desempenham um importante papel ecológico de manutenção e continuidade da espécie na natureza, como mecanismos contra a herbivoria e a desidratação.

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Section: Introductionunclassified

Caracterização morfoanatômica, fitoquímica e histoquímica de Hymenaea courbaril (Leguminosae), ocorrente na Amazônia Meridional

et al. 2020

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“…Using seed traps aboveground, showed that very few large seeds, characteristic of timber species, were dispersed into the strips by birds or bats, one year after clear-cutting. Also, seeds of a valuable timber species, Hymenaea courbaril, were rarely moved by rodents into the interior of a strip, 10 to 30 months after the clearing (Gorchov et al 2004). Predation of timber seeds (Pouteria sp.…”

Section: Composition Recoverymentioning

confidence: 99%

Tree species richness and composition 15 years after strip clear-cutting in the Peruvian Amazon

Rondon

Gorchov

Cornejo³

2008

Plant Ecol

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Although strip clear-cutting has a long history of use in the temperate zone, it was only recently introduced for timber extraction in tropical rain forests, where it is known as the Palcazú Forest Management System. In this system heterogeneous tropical forests are managed for native gap-dependent timber species by simulating gap dynamics through clear-cutting long, narrow strips every 40 years. As part of an assessment of the sustainability of this system, we evaluated the recovery of tree basal area, species richness, and composition after 15 years of regeneration on two strips (30 9 150 m) clear-cut in 1989 in Jenaro Herrera, Peru. Timber stocking and the effects of silvicultural thinning were assessed in both strips. The strips recovered 58-73% of their original basal area and 45-68% of their original tree species richness. Although both strips recovered more than 50% of their original composition, commercial species had lower basal areas and lower densities than in the forest before the clearing. Pioneer species with high basal areas remained dominant 15 years after the cutting. Silvicultural thinning in 1996 reduced the abundance of pioneer species in both strips, and increased the abundance of commercial species in one of the strips. Half of one strip was harvested by deferment-cut (only commercial trees [30 cm dbh and ''other'' species [5 cm dbh were cut); regeneration here had greater abundance of commercial species and lower abundance of pioneer species. The low stocking of commercial trees challenges the sustainability claims for this forest management system.

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“…Seed dispersal from the source forest to early succession stages, for example gaps and grasslands has been attributed to rodents (e.g. Abe et al 2000;Seiwa et al 2002a;Li and Zhang 2003;Gorchov et al 2004).…”

Section: Effects Of Seed Dispersal By a Speciosusmentioning

confidence: 99%

Dispersal of Camellia japonica seeds by Apodemus speciosus revealed by maternity analysis of plants and behavioral observation of animal vectors

Abe

Matsuki

Ueno

et al. 2006

Ecological Research

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Seed dispersal determines a plant's reproductive success, range expansion, and population genetic structures. Camellia japonica, a common evergreen tree in Japan, has been the subject of recent genetic studies of population structure, but its mode of seed dispersal has been assumed, without detailed study, to be barochory. The morphological and physiological features of C. japonica seeds, which are large and nutritious, suggest zoochorous dispersal, however. We compared actual distances between mother trees and seedlings with distances attributable to gravity dispersion only, to test the zoochory hypothesis of C. japonica. The animals that transport the seeds for caching were identified experimentally. We also examined the extent to which seed dispersal is affected by the behavior of animal vectors. Seed dispersal by Apodemus speciosus was confirmed by taking photographs of animals that were consuming seeds experimentally deposited on the ground. Camellia seeds hoarded by the rodents under the litter or soil were protected from drying. On the basis of microsatellite analysis of maternal tissue from the seed coat, the mother trees of 28 seedlings were identified. Maternity analysis revealed the average seed-dispersal distance from mother trees was 5.8 m±6.0 SD, a distance greater than initial dispersal by gravity alone. These results indicate that C. japonica is a zoochorous species dispersed by A. speciosus. Fifty percent of the seed dispersal occurred from mature evergreen forests to dwarf bamboo thickets. This directional seed dispersal would contribute to range expansion of C. japonica. Home range sizes of A. speciosus were 0.85 ha at most and covered with different types of vegetation, from evergreen forests to grassland. This low specificity of their microhabitat use might enhance seed dispersal to different types of vegetation.

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Dispersal of seeds of Hymenaea courbaril (Fabaceae) in a logged rain forest in the Peruvian Amazonian

Cited by 26 publications

References 35 publications

Caracterização morfoanatômica, fitoquímica e histoquímica de Hymenaea courbaril (Leguminosae), ocorrente na Amazônia Meridional

Caracterização morfoanatômica, fitoquímica e histoquímica de Hymenaea courbaril (Leguminosae), ocorrente na Amazônia Meridional

Tree species richness and composition 15 years after strip clear-cutting in the Peruvian Amazon

Dispersal of Camellia japonica seeds by Apodemus speciosus revealed by maternity analysis of plants and behavioral observation of animal vectors

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