Plant Ecology
Mostrando 1-12 de 180 artigos, teses e dissertações.
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1. The aquatic species Pontederia azurea and P. crassipes (Pontederiaceae) in the Pantanal, Brazil: evidence of how plant structure can simultaneously reflect phylogeny and ecology
ABSTRACT Hydric fluctuations in the Pantanal comprise annual dry and wet seasons that modify local diversity and plant morphology and anatomy. Widespread in this wetland are the sympatric Pontederia azurea and P. crassipes, which, although primarily aquatic, can also develop in non-flooded environments. This study undertook a comparative investigation of the
Acta Bot. Bras.. Publicado em: 2021-03
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2. Advances in the knowledge of the natural history of aquatic plants in the Neotropics
ABSTRACT Until the mid-XX century, little awareness on the ecological services or socio-environmental problems and benefits related to aquatic plants culminated in bottlenecks on their natural history, especially for the Neotropics. In this context, Acta Botanica Brasilica (ABB) organized this special issue to promote the advancement of knowledge on this eco
Acta Bot. Bras.. Publicado em: 2021-03
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3. Can plant hybridization and polyploidy lead to pollinator shift?
ABSTRACT Events of both hybridization and polyploidy are capable of completely restructuring the genome, modifying phenotypic traits and affecting ecological interactions. For plants, these changes may affect floral traits that are important for interactions with pollinators, which could lead to shifts in pollinator behavior and taxa between hybrids/polyploi
Acta Bot. Bras.. Publicado em: 2020-06
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4. METABOLÔMICA DE PLANTAS: MÉTODOS E DESAFIOS
Metabolomics has played a central role in various areas of plant sciences, offering new perspectives for the advancement of agriculture, drug discovery, chemical ecology and taxonomy. Plant metabolomics (identification and quantification) aims to understand the relationship between biological systems and genetic, pathological and or environmental stimuli in
Quím. Nova. Publicado em: 2020-03
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5. Flowering and pollination ecology of Cleistocactus baumannii (Cactaceae) in the Brazilian Chaco: pollinator dependence and floral larceny
ABSTRACT Cleistocactus baumannii is the only ornithophilous cactus species in the Brazilian Chaco. In addition, this species of Cactaceae invests heavily in flowering in the ecoregion. Such characteristics motivated us to evaluate the temporal availability of flowers in the context of its floral visitors. The reproductive system of C. baumannii, the number o
Acta Bot. Bras.. Publicado em: 2020-03
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6. 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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7. Arbuscular mycorrhizal fungi and Urochloa brizantha: symbiosis and spore multiplication
RESUMO Fungos micorrízicos arbusculares (FMA) podem apresentar comportamentos distintos, quando associados à mesma espécie de planta hospedeira, sendo necessário compreender sua ecologia, visando a otimizar o seu manejo e manutenção em banco de germoplama. Objetivou-se avaliar diferentes FMA associados a Urochloa brizantha (A. Rich.) Stapf, analisando-
Pesqui. Agropecu. Trop.. Publicado em: 15/08/2019
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8. Checklist of the flora in ironstone outcrops at the Urucum Plateau, Corumbá, Mato Grosso do Sul
Resumo: As cangas são afloramentos ferruginosos que ocorrem ao sopé do Maciço do Urucum, na Borda Oeste do Pantanal, Corumbá-MS. No Brasil, o conhecimento sobre a florística e ecologia das comunidades vegetais associadas a essas formações ainda é incipiente. Esses habitats estão entre os mais ameaçados e menos estudados do Brasil, devido à sua ass
Biota Neotrop.. Publicado em: 01/07/2019
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9. The Ecology and Conservation of Wild Rice, Zizania palustris L., in North America
Resumo O Arroz selvagem é uma espécie de planta enigmática da parte do centro-norte dos EUA. O arroz selvagem (Zizania palustris L.) é encontrado em muitos locais nessa região. Contudo, é uma espécie selvagem, mas ao mesmo tempo produzida de forma semi-domesticada. É uma planta enigmática porque é produzido e colhido em grandes alagados por fazend
Acta Limnol. Bras.. Publicado em: 03/06/2019
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10. Arbuscular mycorrhizal fungal communities in soils under three phytophysiognomies of the Brazilian Atlantic Forest
ABSTRACT Arbuscular mycorrhizal fungi (AMF) play an important role in plant community productivity and structure, and so studying the factors that affect the diversity and structure of this fungal community is important for understanding their ecology in tropical forests. We investigated AMF spore communities and root colonization under three forest phytophy
Acta Bot. Bras.. Publicado em: 29/11/2018
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11. Floral and reproductive biology of Alcantarea nahoumii (Bromeliaceae), a vulnerable endemic species of the Atlantic Forest
ABSTRACT Alcantarea nahoumii occurs exclusively in the state of Bahia, Brazil, and is classified as vulnerable due to deforestation and frequent fires in the region. Knowledge of floral and reproductive biology is fundamental to understanding ecological interactions, as well as the reproductive success of plant species. The objective of this study was to eva
Acta Bot. Bras.. Publicado em: 2017-12
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12. Elaiophores: their taxonomic distribution, morphology and functions
ABSTRACT Elaiophores are floral glands that secrete non-volatile oils as a reward for their pollinators. Their secretions mediate a specialized interaction between oil-producing plants and a few species of oil-collecting bees - Apidae and Melittidae. The present review focuses on the morphological and functional aspects of these secretory structures. We also
Acta Bot. Bras.. Publicado em: 15/05/2017