NDLI: Traits and functional strategies as predictors of demographic variations over a chronosequence

Content Provider	Springer Nature Link
Author	Lins e Silva, Ana Carolina Borges Rodal, Maria Jesus Nogueira Pinto, Andréa de Vasconcelos Freitas Sampaio, Everardo Valadares de Sá Barretto Lima, André Luiz Alves Silva, Maria Amanda Menezes Nascimento, Ladivania Medeiros
Copyright Year	2017
Abstract	Traits and functional strategies when related to demographic rates provide important information about the distribution of species and their performance in different environments. Therefore, predictions were made that: (1) plant communities in tropical forests, distributed over a chronosequence, have different trade-offs between demographic rates and functional traits due to variations in light availability and (2) acquisitive, intermediate and conservative species have different demographic rates throughout the chronosequence. To test these predictions, data from eight functional traits (maximum plant height; specific leaf area; leaf dry matter content; leaf nitrogen, phosphorus and chlorophyll concentrations; wood density; and seed shape) were collected from 64 tree species, distributed in six secondary (three 17 and three 25 years old) and three mature (>40 years old) Ombrophilous Dense Forest fragments. Demographic rates (mortality, recruitment and growth) of the species were determined for periods of three and five years, in each forest. Mortality was higher and growth rate was lower in the 17-year-old than in the mature forest, and the acquisitive group had the highest recruiting rate, but interactions were not significant. Thus, the majority of relationships between demographic rates and functional traits did not correspond to the predictions, as some traits were not better predictors of the demography of species in a determined forest than others and that these relationships did not vary across the chronosequence. Therefore, the trade-offs between functional and demographic characteristics are related to the species and not to environmental differences across the age gradient, and when the species are separated into groups, the predicted changes in demography are valid across the gradient.
Starting Page	761
Ending Page	770
Page Count	10
File Format	PDF
ISSN	01008404
Journal	Brazilian Journal of Botany
Volume Number	40
Issue Number	3
e-ISSN	18069959
Language	English
Publisher	Springer International Publishing
Publisher Date	2017-04-24
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Plant Systematics/Taxonomy/Biogeography Seed shape Rules of assembly Wood density Environmental gradient Fitness
Content Type	Text
Resource Type	Article
Subject	Plant Science

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