Vegetation structure and composition along an interior-edge-exterior gradient in a Costa Rican montane cloud forest

Oosterhoorn, M; Kappelle, M.

doi:10.1016/s0378-1127(99)00101-2

Cited by 119 publications

(104 citation statements)

References 27 publications

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“…Distinct abiotic conditions between forest and edge (Kapos 1989, Matlack 1993) commonly cause changes in species composition (Williams-Linera 1990a, Gehlhausen et al 2000, Oosterhoorn & Kappelle 2000, Honnay et al 2002, vegetation structure (Williams-Linera 1990a, Malcolm 1994, Young & Mitchell 1994, Cadenasso & Pickett 2001 and tree mortality rate (Laurance et al 1998, Mesquita et al 1999, Laurance et al 2000. In this study grazing and cattle trampling may have caused differential mortality of herbs and woody seedling as observed by Mauhs & Backes (2002) in a similar study area.…”

Section: Discussionsupporting

confidence: 69%

Changes in plant community diversity and composition across an edge between Araucaria forest and pasture in South Brazil

2006

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-(Changes in plant community diversity and composition across an edge between Araucaria forest and pasture in South Brazil). This work investigated how richness, abundance, composition and structure of woody and herbaceous vegetation were altered by the proximity of an edge between Araucaria forest and pasture in South Brazil. Herbaceous and woody species including seedlings were surveyed in 42 plots of 5 × 5 m randomly placed at the following distances: 5 and 50 m from the edge into the pasture and 0, 25, 50, 100 and 250 m from the edge into the forest. There was a significant increase in vegetation cover, richness and abundance of woody species, woody seedlings and herbaceous plants at the edge (0 m). These variables, in general, decreased from 25 to 50 m from the edge into the forest in comparison to the forest interior. Few seedlings of woody plants were able to establish themselves in the pasture. There were continuous changes in species composition that occurred in the studied gradient due to the invasion of light-demanding species and the disappearance of some shade-tolerant species at the edge. In conclusion, the forest edge studied generated changes in the plant community that extended up to 50 m into the forest.Key words -edge effects, herbaceous vegetation, seedling diversity, tree species composition, woody plants richness RESUMO -(Mudanças na composição e diversidade de uma comunidade de plantas ao longo de uma borda entre floresta com araucária e pastagem no Sul do Brasil). Neste estudo investigamos como riqueza, abundância, composição e estrutura da vegetação lenhosa e herbácea foram alteradas pela proximidade de uma borda entre floresta com araucária e pastagem no sul do Brasil. Espécies lenhosas e herbáceas, incluindo plântulas, foram analisadas em 42 parcelas de 5 × 5 m dispostas aleatoriamente nas seguintes distâncias: 5 e 50 m da borda para dentro do campo e 0, 25, 50, 100 e 250 m da borda para dentro da floresta. Houve um aumento significativo na cobertura da vegetação, riqueza e abundância de espécies lenhosas, plântulas lenhosas e plantas herbáceas na borda (0 m). Essas variáveis, em geral, decresceram nas distâncias 25 a 50 m da borda para dentro da floresta em relação ao interior da mesma. Poucas plântulas lenhosas foram capazes de estabelecer-se no campo. Houve uma mudança contínua na composição de espécies que ocorreu no gradiente de borda devido à invasão de espécies heliófilas e o desaparecimento de alguma espécies tolerantes à sombra na borda. Concluímos que a comunidade de plantas encontra-se alterada na borda florestal estudada em uma extensão que vai até 50 m para dentro da floresta.Palavras-chave -composição de espécies arbóreas, diversidade de plântulas, efeito de borda, riqueza de plantas lenhosas, vegetação herbácea 1.

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Section: Discussionsupporting

confidence: 69%

Changes in plant community diversity and composition across an edge between Araucaria forest and pasture in South Brazil

2006

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“…However, these observations conflict with those reported in Costa Rica (Oosterhoorn and Kappelle 2000) where heights of 30-50 m were recorded.…”

Section: Structurecontrasting

confidence: 96%

“…This site is of particular relevance, being the last area of well-preserved forest in the Western Cordillera in North Peru. The ecological information recorded in this study will also be useful to develop local education and conservation programs (Foster 2001;Hamilton 1995;Oosterhoorn and Kappelle 2000).…”

Section: Introductionmentioning

confidence: 98%

Forest biodiversity assessment in Peruvian Andean Montane cloud forest

Ledo

Condés

Alberdi³

2012

J. Mt. Sci.

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Cloud forests are unusual and fragile habitats, being one of the least studied and least understood ecosystems. The tropical Andean dominion is considered one of the most significant places in the world as regards biological diversity, with a very high level of endemism. The biodiversity was analysed in an isolated remnant area of a tropical montane cloud forest known as the "Bosque de Neblina de Cuyas", in the North of the Peruvian Andean range. Composition, structure and dead wood were measured or estimated. The values obtained were compared with other cloud forests. The study revealed a high level of forest biodiversity, although the level of biodiversity differs from one area to another: in the inner areas, where human pressure is almost inexistent, the biodiversity values increase. The high species richness and the low dominance among species bear testimony to this montane cloud forest as a real enclave of biodiversity.

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“…A similar pattern of distribution with higher richness and heterogeneity in the plots closer to the edge is also observed by Fox et al (1997), in the rainforests of Australia. Oosterhoorn and Kappelle (2000) also present similar results in a forest in Costa Rica. Besides this, Gehlhausen et al (2000) show, in different locations, that species richness is correlated with environmental variables, like canopy openness and soil moisture, two variables that usually vary as a function of the edge-interior gradient (Cadenasso et al 1997).…”

Section: Discussionsupporting

confidence: 79%

The influence of land use on edge effect in an Atlantic forest fragment in north-east Brazil

et al. 2012

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Influencia del uso del suelo sobre el efecto de borde en un fragmento de bosque atlántico en el noreste de Brasil SUMMARYAlthough the edge effect is a phenomenon much studied in tropical forests, the effects of edge creation in open ombrophilous forests of the Atlantic Forest of northeastern Brazil are little discussed. Plant communities with large canopy openness, including periods with partial loss of leaves may respond differently to the impacts of edge formation because species may be more light-tolerant. The matrix can have a direct influence on the edge effect. Most studies available examine the consequences of the interface between forest and agricultural areas or pasturelands. However, the effects of the creation of a water body have been little studied, despite being frequent in the last century.In this study, we analyze the edge effect in two faces of a fragment, the first edge in contact with sugarcane crop, and the second with a lake formed by a dam. To neutralize the effect of selective logging and avoid counting species established before the edge formation, we analyzed the composition and density of the juvenile layer (≤ 1m). The results pointed out that the construction of a dam (water body) has caused an edge effect in the forest fragment, which seems to be not relevant in the area adjacent to sugarcane cultivation.Key words: rain forest, fragmentation, edge effect, Atlantic forest, Brazil. RESUMENSi bien el efecto de borde es un fenómeno ampliamente estudiado en bosques tropicales, los efectos de la creación de bordes en bosques abiertos ombrófilos del bosque atlántico del noreste de Brasil han sido poco discutido. Comunidades vegetales con una gran apertura de copa, incluyendo periodos con pérdida parcial de hojas pueden responder de manera diferenciada a los impactos de la formación de bordes ya que las especies pueden ser más tolerantes a la luz. La matriz puede tener una influencia directa sobre el efecto de borde. La mayoría de los estudios disponibles examinan las consecuencias de la interface entre el bosque y las áreas agrícolas o praderas. Sin embargo, los efectos de la creación de un cuerpo de agua han sido poco estudiados a pesar de ser frecuentes en el último siglo. En este estudio se analiza el efecto de borde en dos lados de un fragmento, el primer borde en contacto con un cultivo de caña y el segundo con un lago formado por una represa. Para neutralizar el efecto de madereo selectivo y evitar el conteo de especies establecidas antes de la formación del borde, se analiza la composición y densidad de la capa juvenil (≤ 1m). Los resultados indican que la construcción de una represa (cuerpo de agua) ha causado un efecto de borde en el fragmento de bosque, que parece no ser relevante en el área adyacente al cultivo de caña.Palabras clave: bosque lluvioso, fragmentación, efecto de borde, bosque atlántico, Brasil.

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Vegetation structure and composition along an interior-edge-exterior gradient in a Costa Rican montane cloud forest

Cited by 119 publications

References 27 publications

Changes in plant community diversity and composition across an edge between Araucaria forest and pasture in South Brazil

Changes in plant community diversity and composition across an edge between Araucaria forest and pasture in South Brazil

Forest biodiversity assessment in Peruvian Andean Montane cloud forest

The influence of land use on edge effect in an Atlantic forest fragment in north-east Brazil

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