Ontogenetic shifts in habitat-association of tree species in a neotropical wetland

Arieira, Júlia; Penha, Jerry; Cunha, Cátia Nunes da; Couto, Eduardo Guimarães

doi:10.1007/s11104-016-2844-y

Cited by 14 publications

(14 citation statements)

References 66 publications

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“…It 382 thus appears that in our study site the relevance of edaphic properties in determining spatial 383 patterns of tree species may depend on the ontogenetic stage of individuals. Other work in 384 tropical ecosystems (Comita et al, 2007;Kanagaraj et al, 2011;Arieira et al, 2016) found that 385 the relationship of tree species with habitat decreases with ontogenetic advancement due to the 386 increase in intraspecific competition driven by density-dependent mortality. In our forest, the 387 positive spatial associations of Tetragastris altissima with Ca, Mg, Mn, Cu, Zn, and pH, 388 recorded only in the two last inventories, might be related to the intense demographic variations 389 (e.g., mortality and recruitment) of this population in this period.…”

Section: Discussion 286mentioning

confidence: 99%

“…For instance, the traditional Janzen-Connell (J-C) model proposes that after the initial 94 establishment of species, density-dependent biotic processes reduce survival and intraspecific 95 aggregation, thus tending towards spatial regularity of individuals and enhancing overall 96 community diversity (Janzen, 1970;Connell, 1971). However, in tropical communities, these "J-97 C processes" might be disguised by the effect of environmental conditions and niche separation 98 among life stages (Soliveres et al, 2010;Zhu et al, 2013;Xie et al, 2015), as habitat 99 specialization and tolerance limits means that intraspecific aggregations of tree species are also 100 determined by the spatial structuring of resources (Arieira et al, 2016). Notably, edaphic 101 conditions comprise one of the most variable axes of the spatial niche, and are among the best 102 predictors of distribution patterns of tree species (e.g., Harms et al, 2001;Phillips et al, 2003;103 Getzin et al, 2008).…”

Section: Introduction 53mentioning

confidence: 99%

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Idiosyncratic soil-tree species associations and their relationships with drought in a monodominant Amazon forest

et al. 2018

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Section: Discussion 286mentioning

confidence: 99%

Section: Introduction 53mentioning

confidence: 99%

Idiosyncratic soil-tree species associations and their relationships with drought in a monodominant Amazon forest

et al. 2018

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“…This pattern highlights the importance of distance-dependent processes (e.g. dispersal) on the variation in community composition at the early stage of tree life history in tropical forests (Arieira et al 2016). Conversely, in subalpine transects, we found that the composition of adult species between assemblages showed stronger spatial dependence (Table 1).…”

Section: Discussionmentioning

confidence: 50%

“…In Neotropical lowland forest, spatially dependent processes (i.e. dispersal limitation) had a greater effect on species assemblages of young trees (Arieira et al 2016). For community assembly in a subtropical forest, the importance of environmental filtering increased, and that of dispersal limitation decreased, with tree life stages (Yang et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Environmental and spatial contributions to seedling and adult tree assembly across tropical, subtropical and subalpine elevational gradients

Song

Cao

Kitching

et al. 2017

Journal of Plant Ecology

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Quantifying the relative importance of the mechanisms that drive community assembly in forests is a crucial issue in community ecology. The present study aims to understand the ways in which niche-based and spatially-based processes influence community assembly in areas in different climatic conditions and how these processes change during the transition from seedling to adult. Methods In this study, we investigated how taxonomic and phylogenetic beta diversity in seedling and adult stages of forest trees change across three elevational transects in tropical, subtropical, and subalpine forests in Southwest China, and the relationships of these changes to the environment and inter-site distances. We quantified the relative contribution of environmental conditions and spatial distribution to taxonomic and phylogenetic beta diversity of both seedling and adult life stages along each elevational transect. We also 3 highlight the importance of ontogenetic stages for fully understanding community assembly of long-lived tree species.

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“…The expected condition in environments subject to seasonal floodings, such as the Pantanal, the annual Bet-Hedging strategy maintains a seed bank more or less continuous in time (Schupp 1995. In wetlands with different plant communities, the disturbance represents the main driver of β-diversity (e.g., Arieira et al 2016, Tonkin et al 2017. For instance, flooding has been considered the main filtering of plant species distribution in tropical floodplains (Wittmann & Junk 2003), and flood depth explained differences in species composition of colonizing young trees (Arieira et al 2016).…”

Section: Response Variablementioning

confidence: 99%

Topography and Seasonality Promotes Taxonomic Beta Diversity of Seedlings in a Tropical Wetland

et al. 2019

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Spatial and temporal beta diversity of seedlings in tropical wetland remain poorly understood. We assessed the ecological pattern of taxonomic beta diversity of seedling assemblages along a topographic gradient, seasonally flooded disturbance, and sampling years in a tropical wetland. We tested that seasonally flooded disturbance on seedling assemblage promotes a high taxonomic beta diversity due to a high taxonomic turnover along the topographical gradient. Here we examined a large database from 200 plots (each having 0.5 × 0.5 m), across eight seasonally flooded grasslands in the Pantanal of central-west Brazil. We selected data on ponds for four years at two characteristic hydrological phases per year: post-flood (July and August), and post-dry season (October and November). We classified the topographical gradient into three levels 1) low-longer duration of flood; 2) mid-intermediate level; and 3) high-short duration of flood (dry soil). For both post-flood and post-dry seasons, we counted the number of seedlings within five plots at each topographic level. Additionally, taxonomic beta diversity was examined via novel abundance-based metrics (including both turnover and nestedness patterns). Overall, taxonomic beta diversity was consistently higher in high topographic level and post-dry season plots. We observed differences in beta diversity components between topographical levels, seasons and years. Topographical gradient and seasonally flooded promotes more variation in taxonomic turnover and beta diversity; due to these environmental filters we presume that the resulting beta diversity can be decisive in the species diversity in this tropical wetland.

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Ontogenetic shifts in habitat-association of tree species in a neotropical wetland

Cited by 14 publications

References 66 publications

Idiosyncratic soil-tree species associations and their relationships with drought in a monodominant Amazon forest

Idiosyncratic soil-tree species associations and their relationships with drought in a monodominant Amazon forest

Environmental and spatial contributions to seedling and adult tree assembly across tropical, subtropical and subalpine elevational gradients

Topography and Seasonality Promotes Taxonomic Beta Diversity of Seedlings in a Tropical Wetland

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