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130 results for “liana”
Light-demanding tree species are more susceptible to lianas than shade-tolerant tree species in a subtropical secondary forest
<ol> <li> <span>Tree-tree competition has been widely studied as a mechanism responsible for maintaining forest plant species diversity</span><span>.</span><span> Other common plant types, such as lianas, may influence tree species competition. Previous studies reported the negative effects of lianas on trees; however, variation in susceptibility to lianas among tree species and the species-specificity of liana species for tree hosts remain unclear. If lianas have species-specific interactions with trees, based either on tree or liana species identity, then lianas may influence tree-tree interactions by altering tree species-specific competitiveness. </span> </li> <li> <span>We surveyed 5,676 lianas</span><span> (DBH </span><span>≥ </span><span>0.5 cm</span><span>)</span><span> and </span><span>61,538 trees </span><span>(DBH </span><span>≥ </span><span>1 cm</span><span>)</span><span> in a 12-ha subtropical secondary forest</span><span> plot to assess </span><span>liana-tree interactions</span><span>.</span><span> We</span><span> tested </span><span>variation among the 20 most common tree species in their </span><span>susceptibility to lianas,</span><span> including whether light-demanding and shade-tolerant tree species differed. </span><span>We</span><span> quantified liana-tree network structure and</span><span> evaluated the specificity between the 20 most common tree species and the 15 most common liana species. </span><span>We expected that: (1) </span><span>tree species would vary in their susceptibility to lianas, and the extent of this </span><span>variation</span><span> would be predicted by tree shade-tolerance; and (2) </span><span>liana species would have distinct species-specific interactions with host trees. </span> </li> <li> <span>Tree species differed greatly in their susceptibility to lianas, with some tree species accumulating many more lianas than others. Light-demanding tree species particularly had greater susceptibility to lianas than shade-tolerant tree species. Both the liana-tree network structure and the interaction </span><span>intensity</span><span> between the 15 liana species and 20 tree species showed distinct specialization of liana-tree interactions. </span> </li> <li><span><em>Synthesis</em>. Variation in tree species' susceptibility to lianas implies that lianas may alter tree species-specific competitive abilities by disproportionately affecting some tree species more than others. In contrast to studies in neotropical forests, light-demanding tree species were more susceptible to lianas than shade-tolerant tree species, suggesting that lianas could reduce light-demanding tree performance in this forest. The distinct species specialization between liana and tree species suggests that increases in the relative abundance of liana species, which is occurring in many forests, may alter the tree community by reducing the relative abundance of preferred host tree species. </span></li> </ol>
Data from: Maximum stem diameter predicts liana population demography
<p>Determining population demographic rates is fundamental to understanding differences in species life-history strategies and their capacity to coexist. Calculating demographic rates, however, is challenging and requires long-term, large-scale censuses. Body size may serve as a simple predictor of demographic rate; can it act as a proxy for demographic rate when those data are unavailable? We tested the hypothesis that maximum body size predicts species' demographic rate using repeated censuses of the 77 most common liana species on the Barro Colorado Island, Panama (BCI) 50-ha plot. We found that maximum stem diameter does predict species' population turnover and demography. We also found that lianas on BCI can grow to the enormous diameter of 635 mm, indicating that they can store large amounts of carbon and compete intensely with tropical canopy trees. This study is the first to show that maximum stem diameter can predict plant species' demographic rates and that lianas can attain extremely large diameters. Understanding liana demography is particularly timely because lianas are increasing rapidly in many tropical forests, yet their species-level population dynamics remain chronically understudied. Determining per-species maximum liana diameters in additional forests will enable systematic comparative analyses of liana demography and potential influence across forest types.</p>
Data from: Canopy height explains species richness in the largest clade of Neotropical lianas
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Data from: Lianas abundance is positively related with the avian acoustic community in tropical dry forests
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Liana communities exhibit different species composition, diversity and community structure across forest types in the Congo Basin
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Lianas have a faster resource acquisition strategy than trees: belowground evidence from root traits, phylogeny, and the root economics space
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Data for Liana litter decomposes faster than tree litter in a multispecies and multisite experiment
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Data from: Tropical dry forest trees and lianas differ in leaf economic spectrum traits but have overlapping water-use strategies
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Data from: How do lianas and vines influence competitive differences and niche differences among tree species? Concepts and a case study in a tropical forest
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Data from: Allometric scaling laws linking biomass and rooting depth vary across ontogeny and functional groups in tropical dry forest lianas and trees
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Local canopy disturbance as an explanation for long-term increases in liana abundance
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Data from: Effects of dry-season irrigation on leaf physiology and biomass allocation in tropical lianas and trees
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Patterns of liana diversity and host interaction networks in selectively-logged and unlogged forests of Uppangala, Western Ghats, India
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Pathogen incidence on tree and liana seedlings along a chronosequence of tropical forest recovery in Panama
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Lianas and trees exhibit distinct hydraulic and functional traits in a subtropical forest
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Higher rates of liana regeneration after canopy fall drives species abundance patterns in central Amazonia
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Data from: Do lianas shape ant communities in an early successional tropical forest?
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Lianas explore the forest canopy more effectively than trees under drier conditions
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Large herbivores suppress liana infestation in an African savanna
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Data from: Lianas reduce community-level canopy tree reproduction in a Panamanian forest
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OpenNeuro
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