Spatial pattern of invasive and native graminoids in the Brazilian cerrado

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dc.creator Dodonov, Pavel
dc.creator Harper, Karen Amanda, 1960-
dc.creator de Oliveira Xavier, Rafael
dc.creator Silva Matos, Dalva M.
dc.date.accessioned 2020-06-24T13:25:05Z
dc.date.available 2020-06-24T13:25:05Z
dc.date.issued 2019-06-18
dc.identifier.issn 1385-0237
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/29380
dc.description Author’s Accepted Manuscript en_CA
dc.description.abstract Invasive grasses are an important threat in tropical savannas and grasslands and may be affected by natural and anthropogenic features of the environment. They may affect native species at a variety of scales, but a spatially-explicit assessment of their effects is lacking. We studied the spatial pattern of native and invasive graminoids in Brazilian cerrado in southeastern Brazil and assessed the effects of vegetation type, elevation and edges. We sampled native grasses, native sedges, and two invasive grass species (Urochloa decumbens and Melinis minutiflora) along three 301 to 1334 m-long transects encompassing grassland, forest, and savanna. We used wavelet transforms, generalized additive models, and null model simulations for analysis. Invasive grasses were mostly found in open vegetation. Neither native nor invasive species were consistently affected by elevation or edges. Much of the spatial variation could be explained by small-scale autocorrelation, but M. minutiflora had a more heterogeneous pattern than U. decumbens. Invasive grasses were negatively related to native ones at a variety of scales, from 1 to 66 m, and we observed both positive and negative relations between the two invasive species, with positive ones a finer scales. We hypothesize that spatial pattern characteristics of different invasive species may be related to their invasion potential. en_CA
dc.description.provenance Submitted by Sherry Briere (sherry.briere@smu.ca) on 2020-06-24T13:25:05Z No. of bitstreams: 1 Harper_Karen_A_article_2019.pdf: 537152 bytes, checksum: 5ae222be6f40e05b67e63e7e5b57d3b9 (MD5) en_CA
dc.description.provenance Made available in DSpace on 2020-06-24T13:25:05Z (GMT). No. of bitstreams: 1 Harper_Karen_A_article_2019.pdf: 537152 bytes, checksum: 5ae222be6f40e05b67e63e7e5b57d3b9 (MD5) Previous issue date: 2019-06-18 en_CA
dc.language.iso en en_CA
dc.publisher Springer en_CA
dc.relation.uri https://doi.org/10.1007/s11258-019-00949-6
dc.rights This is a post-peer-review, pre-copyedit version of an article published in Plant Ecology. The final authenticated version is available online at: https://doi.org/10.1007/s11258-019-00949-6
dc.subject.lcsh Grasses -- Brazil
dc.subject.lcsh Invasive plants -- Brazil
dc.subject.lcsh Savanna ecology -- Brazil
dc.title Spatial pattern of invasive and native graminoids in the Brazilian cerrado en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Plant Ecology 220, 741-756. (2019) en_CA
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This is a post-peer-review, pre-copyedit version of an article published in Plant Ecology. The final authenticated version is available online at: https://doi.org/10.1007/s11258-019-00949-6
 
Published Version: https://doi.org/10.1007/s11258-019-00949-6
 
 

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