Disturbance and tropical pioneer species: Patterns of association across life history stages

Goodale, Uromi Manage; Ashton, Mark S.; Berlyn, Graeme P.; Grégoire, Timothy G.; Singhakumara, B.M.P.; Tennakoon, Kushan U.

doi:10.1016/j.foreco.2012.04.020

Cited by 51 publications

(49 citation statements)

References 45 publications

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“… The proportion visual sky in the 180º angle view above seedlings reported here is from seedlings naturally growing in and around the Sinharaja Forest Reserve and is from data published in Goodale et al . . …”

Section: Methodsmentioning

confidence: 99%

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Differences in Survival and Growth Among Tropical Rain Forest Pioneer Tree Seedlings in Relation to Canopy Openness and Herbivory

et al. 2014

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Although differences in canopy openness, herbivory and their interaction may promote species coexistence, how these factors affect pioneer tree species and potentially limit growth, and survival has been poorly studied, particularly in tropical South Asia. We monitored the effect of canopy openness and herbivore damage on seedling survival and growth of 960 individuals of six pioneer tree species: Dillenia triquetra, Macaranga indica, Macaranga peltata, Schumacheria castaneifolia, Trema orientalis, and Wendlandia bicuspidata. Seedlings were placed in four gap‐understory positions—center, outer gap edge, inner forest edge, and understory—in four large, natural gaps within the Sinharaja World Heritage Reserve, Sri Lanka. Canopy openness positively affected survival probability beyond the 550‐d experiment, while herbivory decreased survival and was highest in understory conditions. The relative order of species survival stayed fairly consistent between gap‐understory positions and followed their known shade tolerance rankings. When averaged across all experimental conditions, T. orientalis had the lowest survival probability estimate beyond the 550‐d experiment (0.05), but the greatest capacity for growth where it successfully established, while the species with highest averaged survival probability (0.79), D. triquetra, showed the lowest growth. One species, W. bicuspidata, responded positively to herbivory by re‐sprouting. Coexistence of D. triquetra, T. orientalis, and W. bicuspidata can be explained by a trade‐off among species in survival, growth, and response to herbivory. In addition to variation in canopy light environment, herbivory may be important in determining pioneer species distribution through fine‐scale niche partitioning and should be carefully considered in reforestation efforts.

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Section: Methodsmentioning

confidence: 99%

“…, Goodale et al . ). Canopy openings increase light, temperature fluctuation, and soil resources (nutrients, water) that change from gap center to understory ( e.g ., Nicotra et al .…”

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confidence: 97%

Differences in Survival and Growth Among Tropical Rain Forest Pioneer Tree Seedlings in Relation to Canopy Openness and Herbivory

et al. 2014

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“…Indeed, several events of growth suppression and release are usually identified across the lifetime of tropical trees using tree ring analysis [24]. Second, logging gaps may not be suitable for light demanding species at the high end of the irradiance spectrum [25] and plantations may thus be considered for true pioneers, as well as for the restoration of highly degraded areas and for reforestation. Large plantations following natural forest conversion were promoted up to the 1970s and often showed very encouraging results.…”

Section: Introductionmentioning

confidence: 99%

Differential Performance between Two Timber Species in Forest Logging Gaps and in Plantations in Central Africa

Ouédraogo

Ligot

Daïnou

et al. 2015

Forests

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To develop silvicultural guidelines for high-value timber species of Central African moist forests, we assessed the performance of the pioneer Milicia excelsa (iroko, Moraceae), and of the non-pioneer light demander Pericopsis elata (assamela, Fabaceae) in logging gaps and in plantations in highly degraded areas in south-eastern Cameroon. The survival and size of each seedling was regularly monitored in the silvicultural experiments. Differences in performance and allometry were tested between species in logging gaps and in plantations. The two species performance in logging gaps was significantly different from plantations and concurred with the expectations of the performance trade-off hypothesis but not with the expectations of species light requirements. The pioneer M. excelsa survived significantly better in logging gaps while the non-pioneer P. elata grew significantly faster in plantations. The high mortality and slow growth of M. excelsa in plantations is surprising OPEN ACCESSForests 2015, 6 381 for a pioneer species but could be explained by herbivory (attacks from a gall-making psyllid). Identifying high-value native timber species (i) with good performance in plantations such as P. elata is of importance to restore degraded areas; and (ii) with good performance in logging gaps such as M. excelsa is of importance to maintain timber resources and biodiversity in production forests.

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“…De fato, um dos aspectos amplamente demonstrado na literatura (LIEBERMAN et al, 1985;CONDIT;HUBELL;FOSTER, 1995;RUSSO et al, 2008) é que espécies pioneiras, comuns em áreas mais abertas e em início de estágio sucessional, crescem e morrem mais rapidamente, o que explicaria os resultados encontrados no presente estudo. Este padrão é o resultado das distintas estratégias de vida das espécies, adaptadas a se desenvolverem e a competir em ambientes sob diferentes disponibilidades de recursos (RUSSO et al, 2008;GOODALE et al, 2012), sendo que em áreas em início de sucessão, a luz é o recurso abundante, favorecendo o estabelecimento de espécies iniciais.…”

Section: Cruz a P Et Al 73unclassified

Inter-Relação Entre Paisagem, Organização Florístico-Estrutural E Demografia Do Componente Arbóreo Em Floresta Com Araucária

Cruz¹,

Higuchi²,

Silva³

et al. 2018

Ciênc. Florest.

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RESUMOObjetivou-se verificar as interações entre a configuração espacial da paisagem, a organização florístico-estrutural e as taxas demográficas do componente arbóreo em um sistema de fragmentos e corredores de Floresta com Araucárias em Lages, Santa Catarina. Para isso, foi elaborado um modelo conceitual das possíveis inter-relações, que foi avaliado pela técnica de Modelagem de Equações Estruturais. No ano de 2010, foram obtidos as métricas da paisagem (área, distância do vizinho mais próximo e relação borda e o interior da floresta) e os dados do primeiro inventário florestal. Foram alocadas parcelas permanentes em cinco fragmentos e corredor florestal, onde todos os indivíduos arbóreos com CAP (circunferência a altura do peito, medida a 1,30 do solo) igual ou superior a 15,7 cm foram identificados e mensurados. Em 2014 foi realizado o segundo inventário, com a inclusão de indivíduos recrutas, contagem de mortos e sobreviventes, e foram calculadas as taxas demográficas. Os dados foram analisados por meio da Análise de Componentes Principais (PCA), Análise de Coordenadas Principais (PCoA), Modelagem de Equações Estruturais e Modelos Lineares Generalizados (GLM). Os resultados demonstraram que a estrutura da paisagem (PCA 1) exerceu influência apenas sobre a organização florístico-estrutural do componente arbóreo, indicada pela distribuição preferencial de espécies arbóreas em função da intensidade da fragmentação. Por sua vez, as taxas demográficas (taxas de ganho e perda em área basal e de mortalidade) foram influenciadas por aspectos estruturais da vegetação (abundância e área basal). Conclui-se que existem variações florístico-estruturais associadas à configuração espacial dos fragmentos na paisagem e que as taxas demográficas apresentam relação com o estágio sucessional da floresta, sintetizado pelas variáveis estruturais de área basal e abundância. Palavras-chave: modelagem de equações estruturais; fragmentação florestal; Floresta Ombrófila Mista. ABSTRACTThe aim of this study was to investigate the interactions among the landscape spatial configuration, the floristic-structural organization and demographic rates of the tree component of a system of araucaria forest fragments, in Lages, Santa Catarina state. To do so, we developed a conceptual model of inter-relationship that was evaluated by Structural Equation Modeling. In 2010, the landscape metrics (area, distance from the nearest neighbor and edge-core ratio) and first vegetation inventory data were obtained. Permanent plots

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Disturbance and tropical pioneer species: Patterns of association across life history stages

Cited by 51 publications

References 45 publications

Differences in Survival and Growth Among Tropical Rain Forest Pioneer Tree Seedlings in Relation to Canopy Openness and Herbivory

Differences in Survival and Growth Among Tropical Rain Forest Pioneer Tree Seedlings in Relation to Canopy Openness and Herbivory

Differential Performance between Two Timber Species in Forest Logging Gaps and in Plantations in Central Africa

Inter-Relação Entre Paisagem, Organização Florístico-Estrutural E Demografia Do Componente Arbóreo Em Floresta Com Araucária

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