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<identifier>oai:HAL:hal-01032418v1</identifier>
<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>Herbivory, growth rates, and habitat specialization in tropical tree lineages: implications for Amazonian beta-diversity</title>
<creator>LAMARRE, Greg</creator>
<creator>Baraloto, Christopher</creator>
<creator>FORTUNEL, Claire</creator>
<creator>Davila, Nallarett</creator>
<creator>Mesones, Italo</creator>
<creator>Grandez Rios, Julio</creator>
<creator>Rios, Marcos</creator>
<creator>Valderrama, Elvis</creator>
<creator>Vasquez Pilco, Magno</creator>
<creator>Fine, Paul V. A.</creator>
<contributor>Ecologie des forêts de Guyane (ECOFOG) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD) - Institut National de la Recherche Agronomique (INRA) - Université des Antilles et de la Guyane (UAG) - AgroParisTech - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Bot Grad Program ; Inst Nacl de Pesquisas da Amazonia</contributor>
<contributor>Dept Integrat Biol ; University of California [Berkeley]</contributor>
<contributor>Dept Biol ; Universidad nacional de la amazonia peruana</contributor>
<contributor>Dept Forestal ; Universidad nacional de la amazonia peruana</contributor>
<contributor>NSF grant [DEB-0743103/0743800]; Fond Social Europeen (FSE); INRA</contributor>
<source>ISSN: 0012-9658</source>
<source>Ecology</source>
<publisher>Ecological Society of America</publisher>
<identifier>hal-01032418</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-01032418</identifier>
<source>https://hal.archives-ouvertes.fr/hal-01032418</source>
<source>Ecology, Ecological Society of America, 2012, 93 (8), pp.S195 - S210</source>
<language>en</language>
<subject lang=en>Amazon rainforest</subject>
<subject lang=en>beta-diversity</subject>
<subject lang=en>forest habitat</subject>
<subject lang=en>French Guiana</subject>
<subject lang=en>herbivory</subject>
<subject lang=en>natural enemies</subject>
<subject lang=en>Peru</subject>
<subject lang=en>plant defense traits</subject>
<subject lang=en>NEOTROPICAL RAIN-FOREST</subject>
<subject lang=en>TRADE-OFFS</subject>
<subject lang=en>RESOURCE AVAILABILITY</subject>
<subject lang=en>UNDERSTORY COMMUNITY</subject>
<subject lang=en>SAPOTACEAE ERICALES</subject>
<subject lang=en>SPECIES COEXISTENCE</subject>
<subject lang=en>PLANT DEFENSES</subject>
<subject lang=en>ESSENTIAL OILS</subject>
<subject lang=en>FRENCH-GUIANA</subject>
<subject lang=en>SEQUENCE DATA</subject>
<subject>[SDV.SA] Life Sciences [q-bio]/Agricultural sciences</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Tropical plant diversity is extraordinarily high at both local and regional scales. Many studies have demonstrated that natural enemies maintain local diversity via negative density dependence, but we know little about how natural enemies influence beta-diversity across habitats and/or regions. One way herbivores could influence plant beta-diversity is by driving allocation trade-offs that promote habitat specialization across resource gradients. We therefore predicted that increasing resource availability should be accompanied by increasing herbivory rates and decreasing plant allocation to defense. Second, relative abundances within plant lineages are predicted to reflect patterns of habitat specialization and allocation trade-offs. A phylogenetic context is vital not only to compare homologous plant traits (including defense strategies) across habitat types, but also to connect evolutionary trade-offs to patterns of species diversification in each phylogenetic lineage. We tested these predictions for trees in white-sand, clay terra firme, and seasonally flooded forests in Peru and French Guiana that represent the range of soil fertility, forest structure, and floristic compositions found throughout the Amazon region. We established 74 0.5-ha plots in these habitats and sampled all trees. Within 12 representative plots we marked newly expanding leaves of 394 saplings representing 68 species, including the most abundant species in each plot in addition to species from five focal lineages: Swartzia and Inga (Fabaceae), Protieae (Burseracaeae), Bombacoideae (Malvaceae), and Micropholis (Sapotaceae). We measured total leaf production rates for each sapling and calculated relative herbivory impact as the ratio between herbivory rate and leaf production rate. Herbivory rates averaged 2.1% per month, did not correlate with leaf production rate, and were similar across habitats. Relative herbivore impacts exceeded leaf production rates for most species. Leaf production rate averaged 2.8%, was significantly higher in seasonally flooded forests than the other two habitats, and exhibited significant correlations with specific leaf area. Species with high herbivory rates exhibited significantly lower relative abundances in terra firme forests. Overall, focal species within lineages present contrasting patterns regarding their herbivory rates and leaf production rate within habitats. These results highlight why a lineage-based approach is necessary when attempting to connect hypotheses regarding evolutionary trade-offs to community assembly patterns.</description>
<date>2012</date>
</dc>
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