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Stedille,Lilian Iara Bet; Pires,Edicléa Zulian; Gomes,Juliano Pereira; Costa,Newton Clóvis Freitas da; Bernardi,Alison Paulo; Mantovani,Adelar. |
ABSTRACT: This study characterized the demography and spatial pattern of a yerba mate (Ilex paraguariensis A.St.-Hil) population covering areas with different use histories (Presence and Absence of Cattle) in a Araucaria Forest. Data collection was performed in three ha, half in each area. The frequency of individuals by height, spatial distribution pattern, diameter distribution (for reproductive individuals) and sexual ratio were evaluated. An inverted “J” pattern predominated, being exclusive to an area with Cattle Presence, a place which presented a lower density of individuals. The predominant spatial distribution pattern was aggregated, and the reproductive individuals have a preferentially random pattern at the shortest distances. Results indicated... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spatial distribution; Demographic dynamics; Ripley’s K-function. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001100301 |
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Gomes,Juliano Pereira; Ferreira,Paula Iaschitzki; Dacoregio,Helen Michels; França,Caroline Sartorato Silva; Higuchi,Pedro; Mantovani,Adelar; Bortoluzzi,Roseli Lopes da Costa. |
ABSTRACT: The aim of this study was to characterize the demographic structure and spatial pattern of Campomanesia xanthocarpa (Mart.) O. Berg, Myrcianthes gigantea (D. Legrand) D. Legrand and Myrciaria delicatula (DC.) O. Berg. Within one hectare of Ombrophilous Mixed Forest, all the three populations' individuals were counted and measured with regard to their height and diameter. From the collected data, the assessment of the demographic structure was realized after the individual's size classification. Spatial pattern was determined by applying the Standardized Morisita's Index. C. xanthocarpa and M. delicatula showed an inverted-J frequency distribution in the individuals size classes, which differed from M. gigantea that did not follow the same... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Campomanesia xanthocarpa; Myrcianthes gigantea; Myrciaria delicatula. |
Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000901579 |
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Higuchi,Pedro; Silva,Ana Carolina da; Ferreira,Tiago Sousa; Souza,Sheila Trierveiler de; Gomes,Juliano Pereira; Silva,Karina Montibeller da; Santos,Kristiana Fiorentin do. |
The present study examined the floristic composition of three fragments of Araucaria Forest (AF) in the Planalto Catarinense region of southern Brazil as well as the floristic contextualization of these areas in relation to other remnant AF sites. Three AF fragments at different altitudes were analyzed in the municipalities of Campos Novos, Lages, and Painel. Fifty 200 m² plots were examined in each fragment and all of the trees with CBH (circumference at breast height) > 15.7 cm were identified. In order to floristically contextualize the study fragments, comparisons were made with other remnant AF sites by way of dendrograms and NMDS (Non-metric multidimensional scaling). Environmental and spatial variables were plotted on the diagram produced by the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Araucaria Forest; Arboreal species; Environmental variables. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042012000200004 |
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