PADRÃO ESPACIAL DE ESPÉCIES FLORESTAIS: ESTUDO DE CASO COM &lt;i&gt;Ocotea odorifera &lt;/i&gt;(Vell.) Rohwer

Pottker, Gustavo Sartori; Filho, Paulo Costa de Oliveira; Filho, Afonso Figueiredo; Dalmaso, Cilmar Antônio

doi:10.5902/1980509824999

Cited by 7 publications

(8 citation statements)

References 4 publications

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“…The second most relevant variable to the model, the altitude, demonstrates the autoecological preferences of the species, corroborating the assertion of Pottker et al (2016), in which Ocotea odorifera prefers high and steep slopes to develop. This variable is important because it systematically affects climatic behavior, especially temperature and orographic precipitation (FRANKLIN, 2010).…”

Section: Discussionsupporting

confidence: 70%

“…The importance of pedology, both in its relative contribution and in its predictive capacity when used alone, is explained by the migration of the species, which may be restricted by soil suitability in its potential propagation pathway, as suggested by Zuquim et al (2019). Ocotea odorifera has a preference for shallow soils and fast drainage, in addition to high chemical fertility (CARVALHO, 2005;POTTKER et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

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Potential distribution of <i>Ocotea odorifera</i> (Vell.) Rohwer in urban areas of Curitiba, Paraná state, Brazil

et al. 2019

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Potential distribution of Ocotea odorifera (Vell.) Rohwer in urban areas of Curitiba, Paraná state, Brazil Distribuição potencial de Ocotea odorifera (Vell.) Rohwer na área urbana de Curitiba, Paraná, Brasil AbstractOcotea odorifera is an endangered tree species, threatened by the urbanization process that occurs in the region of Curitiba, Paraná state, among other factors. Thus, the knowledge about their geographical distribution becomes necessary to plan protected areas that mitigate the effects caused by anthropic pressures on their populations. Therefore, the objective of this research was to develop a model of the potential geographic distribution of Ocotea odorifera and to verify the region of the municipality of Curitiba more relevant to its conservation. First, we georeferenced individuals of the species found in the municipality, while the model of potential distribution of the species was performed using the Maxent ® algorithm, using meteorological and topological data as environmental variables. The Jackknife test indicated the most relevant variables to the model and the Area Under the Curve (AUC) indicated its accuracy. The potential distribution map was superimposed on a shapefile file containing the delimitation of 80 protected green areas with fragments of native vegetation. As a whole, 12 occurrence points of the species were located in seven sites. The map generated by Maxent indicated that the central-northern region of Curitiba presents the highest probability of Ocotea odorifera occurrence, corresponding to 19,550.30 ha. The model explained 96.3% of the species distribution in the study area. The relative contribution and the Jackknife test indicated that the most relevant variable to the model was pedology. In future plantings of the species, the pedology should be considered during its planning, as well as other specific characteristics of the soil at each site.

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Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Potential distribution of <i>Ocotea odorifera</i> (Vell.) Rohwer in urban areas of Curitiba, Paraná state, Brazil

et al. 2019

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“…To verify possible influences of first-order factors on the species distribution, density maps were constructed used the Kernel estimator (Pottker et al, 2016). Inhomogeneous Ripley's K-function was used for the spatial distribution patterns analysis of the species by means of second-order factors (Baddeley, Moller, & Waagepetersen, 2000), considering a 250 m influence radius, through estimator and edge correction presented by Ripley (1977).…”

Section: Discussionmentioning

confidence: 99%

“…Inhomogeneous Ripley's K-function was used for the spatial distribution patterns analysis of the species by means of second-order factors (Baddeley, Moller, & Waagepetersen, 2000), considering a 250 m influence radius, through estimator and edge correction presented by Ripley (1977). This function was applied for data and non-stationary process, common in natural forests where the tree species presents intense spatial variability (Baddeley et al, 2000;Baddeley & Turner, 2005;Pottker et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Spatial patterns and interactions of dominant tree species in an Amazon tropical forest

Cysneiros

Dalmaso

Pelissari

et al. 2018

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Knowledge of spatial patterns and interactions of tree species allows for understanding the ecological processes of spatiotemporal structures of tropical forests, becoming essential for the establishment of strategies for the conservation and management of their resources in long term. The aim of this study was to investigate spatial patterns and interactions of Astronium lecointei, Dinizia excelsa and Peltogyne paniculata, three dominant timber tree species in Jamari National Forest, Brazilian Amazon. Kernel estimator was used aiming to verify the possible influence of first-order factors on species distributions and Inhomogeneous K-function was applied to analyze spatial patterns and interactions of the species by means of second-order factors. Univariate analyses revealed different scale-dependent spatial patterns for the species. Aggregation related to ecological characteristics, such as preferential habitat and dispersal limitation, was verified for A. lecointei and P. paniculata. D. excelsa presented a random spatial pattern, explained by specific features of its establishment, such as the need for clearings due to light requirement. Interspecific associations were evidenced by bivariate analyses, in which the spatial attraction of the species resulted from the same preference for microhabitats and the repulsion was a result of niche segregation.

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“…Com isso, considerando que 132,12 ha favoráveis à ocorrência de O. odorifera encontram-se dentro de AVPSs, estas áreas assumem um papel essencial para a conservação da espécie. Esse resultado se deve ao fato de a espécie não ter preferência pelas partes mais baixas do terreno, próximo aos cursos d'água (Pottker et al 2016), contrapondo-se à localização das áreas protegidas públicas presentes em Curitiba, onde normalmente se prioriza a hidrografia do local. No primeiro Plano Diretor de Curitiba, elaborado no ano de 1966, foi recomendado a instalação de parques e bosques ao longo dos cursos d'água, com a finalidade principal de reter água das chuvas, que causavam enchentes frequentes na época; de prevenir a ocupação desordenada dos mananciais e de servir como espaços de lazer para a população, com a criação de lagos, originando diversas reservas florestais nas cotas mais baixas, dando início à política de implantação de áreas verdes no município (Castelnou 2006;Sakata 2011).…”

Section: Classeunclassified

Adequação ambiental para Ocotea odorifera (Vell.) Rohwer na floresta urbana de Curitiba, Paraná, Brasil

et al. 2019

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ResumoOcotea odorifera é uma espécie arbórea que sofre pressão da urbanização na M ata Atlântica, contribuindo para o seu risco de extinção e dificultando a sua adequação ambiental. Áreas verdes protegidas urbanas, no entanto, podem atenuar esses processos por apresentar ambientes com menos impacto antrópico. O objetivo deste trabalho foi estimar a adequação ambiental para O. odorifera no município de Curitiba, Paraná e quantificar a sua representatividade em áreas verdes protegidas. Um mapa de distribuição potencial da espécie foi elaborado por meio do algoritmo Maxent ® , utilizando-se 12 variáveis bióticas e 13 abióticas. A avaliação do desempenho do modelo foi feita pela Área Sobre a Curva (AUC). O mapa do modelo foi sobreposto a um arquivo shapefile contendo 80 áreas protegidas e reclassificado em três classes de adequação ambiental para a espécie: Alta, M édia e Baixa. A área ocupada pelas classes de adequação dentro de cada área protegida foi calculada. O modelo explicou 96,3% da distribuição da espécie. A maior parte do municíp io apresenta condições pouco favoráveis à ocorrência de O. odorifera. A área potencialmente ocupada pela espécie em Curitiba foi de 5.132,4 ha (11,8% da área total do município). Somando-se as classes Alta e M édia em cada área protegida, a maior área contínua com adequação ambiental está presente no Parque Tanguá, com 19,56 ha de adequação ambiental (88,14% de sua área total). M enos de 3% da área com adequação ambiental para O. odorifera encontram-se em áreas verdes protegidas. Recomenda-se a criação de novas áreas protegidas voltadas para a conservação da espécie. Palavras-chave: canela-sassafrás, biodiversidade urbana, fragmentos de habitat. AbstractOcotea odorifera is a tree species that is pressured by the urbanization in the Atlantic Forest, which contributes to the increase in its extinction risk and to the decrease in its environmental suitability. Urban protected areas, however, can mitigate these problems by p resenting environments with less anthropic impact. The aim of this study was to estimate the environmental suitability for O. odorifera in Curitiba, Paraná, and to quantify its representativeness in protected areas in the city. A potential distribution map of the species was elaborated using M axent ® , with 12 biotic and 13 abiotic variables. The evaluation of the model performance was done by the Curve Area (AUC). The modeling map was superimposed on a shapefile file containing 80 protected areas and reclassified into three classes of environmental suitability for the species: High, M edium and Low. The area occupied by the adequacy classes within each protected area was calculated. The modeling explained 96.3% of the species distribution. M ost of Curitiba presented conditions that are not very favorable to the occurrence of O. odorifera. The potential area occupied by the species in the city was 5,132.4 ha (11.8% of its total area). Adding the High and M iddle classes in each protected area, the largest continuous area with environmental suitability is present ...

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PADRÃO ESPACIAL DE ESPÉCIES FLORESTAIS: ESTUDO DE CASO COM <i>Ocotea odorifera </i>(Vell.) Rohwer

Cited by 7 publications

References 4 publications

Potential distribution of <i>Ocotea odorifera</i> (Vell.) Rohwer in urban areas of Curitiba, Paraná state, Brazil

Potential distribution of <i>Ocotea odorifera</i> (Vell.) Rohwer in urban areas of Curitiba, Paraná state, Brazil

Spatial patterns and interactions of dominant tree species in an Amazon tropical forest

Adequação ambiental para Ocotea odorifera (Vell.) Rohwer na floresta urbana de Curitiba, Paraná, Brasil

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