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dc.contributor.authorMarimon, BS
dc.contributor.authorColli, Guarino Rinaldi
dc.contributor.authorMarimon-Junior, BH
dc.contributor.authorMews, HA
dc.contributor.authorEisenlohr, PV
dc.contributor.authorFeldpausch, T.R.
dc.contributor.authorPhillips, OL
dc.date.accessioned2015-10-13T08:42:13Z
dc.date.issued2015-08-28
dc.description.abstractPremise of research. This represents one of the first studies of the ecology, diversity, and structure of campos de murundus termite savannas in the vast seasonal wetlands of southern Amazonia. We aimed to improve understanding of this threatened system by assessing species richness, abundance, and co-occurrence among trees and herbs of murundus (earth mounds), investigating the environmental and biological mechanisms underlying these patterns, and discussing implications for biodiversity conservation. Methodology. We identified every tree, shrub, subshrub, and herb on 373 murundus across 11 ha at Araguaia State Park, southern Amazonia. We constructed species abundance distributions of trees and herbs, assessed best-fit models, and tested for nonrandom patterns of species co-occurrence using checkerboard scores. Using detrended correspondence analysis (DCA), we assessed the affinities among tree species and their positions in murundus. Pivotal results. A total of 166 species, 123 genera, and 49 families occupied the murundus. The species abundance distribution of trees followed a lognormal distribution, whereas that of herbs was best described by a Mandelbrot distribution. Observed C-score indices for trees and herbs were significantly larger than expected by chance, indicating nonrandom distributions and species segregation among murundus. DCA revealed a strong gradient in species occurrence within murundus, suggesting that internal structuring may be hydrologically based (e.g., variation in mound microrelief). Conclusions. Environmental (e.g., flooding) and biological (e.g., competition between plants) factors are important for controlling the occurrence of tree and herb species on the murundus. The murundus function as critical bases for the maintenance of species diversity in this extensive floodplain, thereby deserving recognition among ecosystems with high conservation priorities.en_GB
dc.description.sponsorshipFoundation for Research Support of Mato Grosso Stateen_GB
dc.description.sponsorshipProgram of Academic Agreement/Coordination for the Improvement of Higher Level Educationen_GB
dc.description.sponsorshipBrazilian National Council for Scientific and Technological Development (CNPq)en_GB
dc.description.sponsorshipFoundation for Research Support of Federal District (FAPDF)en_GB
dc.description.sponsorshipGordon and Betty Moore Foundationen_GB
dc.description.sponsorshipNERCen_GB
dc.description.sponsorshipERC Advanced Granten_GB
dc.description.sponsorshipRoyal Society Wolfson Research Merit Awarden_GB
dc.identifier.citationInternational Journal of Plant Sciences, 2015, Vol. 176, pp. 670 - 681en_GB
dc.identifier.doi10.1086/682079
dc.identifier.urihttp://hdl.handle.net/10871/18439
dc.language.isoenen_GB
dc.publisherUniversity of Chicago Pressen_GB
dc.relation.urlhttp://www.press.uchicago.edu/ucp/journals/journal/ijps.htmlen_GB
dc.relation.urlhttp://www.jstor.org/journal/intejplanscieen_GB
dc.rights.embargoreasonPublisher's policyen_GB
dc.rights© 2015 by The University of Chicago. All rights reserved.en_GB
dc.subjectCattle grazingen_GB
dc.subjectCerradoen_GB
dc.subjectFloodingen_GB
dc.subjectTermitesen_GB
dc.subjectTopographyen_GB
dc.titleEcology of floodplain campos de murundus savanna in southern Amazoniaen_GB
dc.typeArticleen_GB
dc.identifier.issn1058-5893
dc.identifier.journalInternational Journal of Plant Sciencesen_GB


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