Plant Community
Mostrando 13-24 de 368 artigos, teses e dissertações.
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13. Araucaria angustifolia chloroplast genome sequence and its relation to other Araucariaceae
Abstract Araucaria angustifolia is endemic to southern Brazil. Known as Brazilian pine, A. angustifolia is the only native conifer species with economic and social relevance in this country. Due to massive exploitation, it has suffered a significant population decline and currently is classified as critically endangered. This encouraged the scientific commun
Genet. Mol. Biol.. Publicado em: 14/11/2019
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14. Variation in root morphology of epiphytic orchids along small-scale and large-scale moisture gradients
ABSTRACT Root morphology is expected to respond to environmental conditions. Two earlier studies reported predictable changes in the structure of the velamen radicum (common in monocotyledons) along rainfall gradients, which was expected from its assumed role in plant-water-relations. The present study expanded on this idea by analysing nine root traits that
Acta Bot. Bras.. Publicado em: 11/11/2019
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15. Cover cropping system and mulching can shape soil microbial status in fruit orchards
ABSTRACT The use of cover crop in agricultural fields has been well elucidated, especially regarding nitrogen fixation from legume crops and their function as weed protection. Furthermore, to cover crops can benefit the soil microbial community. This study aimed to evaluate and compare the benefits of mulching and cover cropping systems on soil microbial gro
Sci. agric. (Piracicaba, Braz.). Publicado em: 04/11/2019
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16. Species richness and community composition of sphingid moths (Lepidoptera: Sphingidae) along an elevational gradient in southeast Peru
ABSTRACT A clear low-elevation skewed unimodal richness pattern is presented for hawkmoths in Southeast Peru. Several hypotheses offer plausible explanations for such a distribution. The effects of water-energy dynamics are partially supported by a strong correlation between temperature and species richness at higher elevations. Further, hypotheses of plant
Zoologia (Curitiba). Publicado em: 21/10/2019
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17. Introducción al análisis socio-ecológico a partir del mapeo colectivo del propio territorio: los usos por parte de distintos actores sociales y sus conflictos associados
Abstract: The present article exposes a practice in the course “Ecology and Development” in a school of natural sciences. The objective is to promote the students’ appropriation of the campus space, the socio-environmental conflicts, and the concepts of socio-ecological systems. Through discussion and the use of aerial images, bibliographical informati
Ciênc. educ. (Bauru). Publicado em: 07/10/2019
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18. Interspecific Competition Between Sweet Sorghum and Weeds
RESUMO: Enquanto evidências indicam o sorgo sacarino [Sorghum bicolor (L.) Moench] como uma matéria-prima de etanol alternativa durante a entressafra da cana-de-açúcar (Saccharum officinarum L.), pouco se sabe sobre sua capacidade produtiva em condições adversas (sob competição com plantas daninhas, por exemplo). Portanto, o objetivo do presente estu
Planta daninha. Publicado em: 30/09/2019
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19. Plant-canopy Effects on Natural Regeneration in Sites Under Restoration: Do Tree Species Matter?
ABSTRACT How does species choice influence ecological restoration outcomes? In order to answer this question, the goal of this study was to assess the community structure and species richness of natural regeneration beneath the canopy of four native species from the Atlantic Forest (Guarea guidonia (L.) Sleumer; Inga edulis Mart; Nectandra membranacea (SW) G
Floresta Ambient.. Publicado em: 26/09/2019
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20. Biomass and abiotic variables change in phytotelmic environment in the tank-bromeliad Nidularium longiflorum Ule in tropical forest
Resumo Objetivo Fitotelma desempenha um papel importante no crescimento das plantas e funcionamento do ecossistema, mas este microcosmo aquático natural é pouco investigado. O objetivo do presente estudo foi avaliar as variações sazonais (estações seca e chuvosa) e espaciais (trilha florestal e córrego) do fitotelma de Nidularium longiflorum, bromél
Acta Limnol. Bras.. Publicado em: 23/09/2019
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21. What is on the menu for frugivorous birds in the Cerrado? Fruiting phenology and nutritional traits highlight the importance of habitat complementarity
ABSTRACT The relationship between plants and frugivorous animals is modulated by morphological and nutritional characteristics of fruits, as well as their seasonal availability across habitats. We evaluated fruiting phenology, fruit morphology and nutritional characteristics of 35 abundant plant species from 15 families associated with frugivorous birds from
Acta Bot. Bras.. Publicado em: 12/09/2019
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22. Period of Weed Interference in Guarana Crop
RESUMO: O guaranazeiro é uma planta nativa da região amazônica, cujo fruto é conhecido como guaraná. A produção de guaraná envolve pequenos agricultores e é fonte de renda para milhares de pessoas nos meios rural e urbano. A interferência causada pelas plantas daninhas na cultura constitui um importante fator que limita sua produção. Apesar da im
Planta daninha. Publicado em: 19/08/2019
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23. Factors driving seed dispersal in a Neotropical river-floodplain system
ABSTRACT Dispersal is a key process affecting the diversity of natural communities. We addressed hydrochory of wetland plant seeds in the Middle Paraná River floodplain. We first studied seed dispersal by drifting macrophytes in the Paraná River main channel (MC), in a high discharge secondary channel (HD) and in two low discharge channels (LD) during an e
Acta Bot. Bras.. Publicado em: 18/07/2019
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24. Phenotypic Plasticity of Pimenta pseudocaryophyllus (Gomes) Landrum Under Different Light Conditions
ABSTRACT The heterogeneous light pattern in forest environments leads to specific morphological and physiological responses. However, anthropogenic pressures in areas such as Atlantic Forest and Cerrado are modifying the light availability, and consequently the forest community composition. The aim of this study was to investigate the plasticity of forest sp
Floresta Ambient.. Publicado em: 04/07/2019