Micro- or macroscale? Which one best predicts the establishment of an endemic Atlantic Forest palm?

Ecology and Evolution
Gabriela Akemi Macedo OdaRita de Cássia Quitete Portela

Abstract

Historically, macroecology and microecology have diverged with regard to the niche concept. A better understanding of functioning ecological systems, however, depends on an integrative approach to this concept at different spatial scales. A mixed approach, merging macro- and microscale by validating ecological niche modeling (ENM) with the results of in situ experiments and environmental data collection was used to understand if areas identified by ENM as highly suitable for adult palms are also adequate for seedling establishment. Syagrus weddelliana's (Arecaceae) distribution range falls within the Atlantic Rain Forest, and more specifically Serra dos Órgãos region (Rio de Janeiro state), southeastern Brazil. The following steps were performed: (a) ENM to delimit the area of occurrence of S. weddelliana and locate experimental areas; (b) a seed sowing experiment in areas with presence or absence of the species in areas of high or low environmental suitability at 36 experimental stations; and (c) characterization of each microhabitat which was related back to the macroscale results of ENM. Evidence of biotic and abiotic limitations was found for S. weddelliana distribution. Areas of higher suitability had lower seed predation ...Continue Reading

Associated Datasets

References

Jan 12, 2007·Proceedings of the National Academy of Sciences of the United States of America·Robert JohnRobin B Foster
Jul 7, 1995·Science·H TuomistoZ Rodriguez
Oct 11, 2008·Epilepsy Research·Euclides Maurício Trindade-FilhoEsper Abrão Cavalheiro
Oct 14, 2009·Proceedings of the National Academy of Sciences of the United States of America·John A WiensMark A Snyder
Jan 22, 2014·Global Change Biology·Christine S SheppardMargaret C Stanley
Jan 2, 2019·Ecology and Evolution·Aline C de SouzaEduardo A de Mattos

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Methods Mentioned

BETA
PCA

Software Mentioned

ENM
SVM
Vegan
Gap Light Analyzer
ModelR
Bioclin
R

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