Results 31 to 40 of about 2,173 (198)
Introdução e objetivos: Pouco sabemos acerca da biologia da polinização de espécies arbóreas tropicais com sistema de polinização por diversos insetos (DI).
Alexandre Tomaz da Fonseca +1 more
doaj +1 more source
Desenvolvimento floral de Sinningia leucotricha (Hohne) Moore, Gesneriaceae (rainha-do-abismo)
Flores de rainha-do-abismo, Sinni'ngi'a leucotricha (Hoehne) Moore, em vários estádios de desenvolvimento, foram utilizadas para medição, descrição e documentação fotográfica, com o objetivo de estudar o desenvolvimento floral e verificar como ocorre ...
Vera Lúcia Iuchi, Luiz Carlos Lopes
doaj +2 more sources
Background In tropical South America, Ceiba pentandra (Malvaceae) is a native chiropterophilous tree frequently found in cities that stands out as a potential substantial floral resource for synanthropic bats, which exhibit unusual swarming behaviour ...
Sinzinando Albuquerque-Lima +4 more
doaj +1 more source
Orchard netting impacts on biodiversity leading to cascading effects at the ecosystem level
ABSTRACT Agriculture must ensure food production without further compromising the ecosystem functions upon which it depends. Agricultural practices should therefore avoid harming farmland biodiversity, especially of taxa that supply the key ecosystem services (e.g.
Corrado Alessandrini +13 more
wiley +1 more source
BIOLOGIA FLORAL E REPRODUTIVA DE Agapanthus africanus (L.) HOFFMANNS (LILIACEAE)
Foi realizado o estudo de biologia floral e reprodutiva de Agapanthus africanus (L.) Hoffmanns (Liliaceae), uma planta exótica, muito utilizada como ornamental em nosso ambiente urbano. Foram realizadas observações de campo, no Campus Curitiba da PUCPR, procurando constatar os visitantes e o seu comportamento na flor, assim como testes de viabilidade ...
Diogo Maurízio Zen, Luiz Antônio Acra
openaire +2 more sources
Portulaca (Portulacaceae) is a cosmopolitan genus with centers of diversity in Africa and South America. In Brazil, 22 species are recognized, most occurring in xerophytic environments of the Cerrado, particularly in Campos Rupestres. These rocky montane habitats, especially in northern Minas Gerais state, remain undercollected despite their high ...
Danilo Alvarenga Zavatin +7 more
wiley +1 more source
Evolutionary steps in the reproductive biology of Annonaceae
Flowers of Annonaceae are characterized by fleshy petals, many stamens with hard connective shields and numerous carpels with sessile stigmas often covered by sticky secretions. The petals of many representatives during anthesis form a closed pollination
Gerhard Gottsberger
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Sinningia pampeana is a new rupicolous species from the rocky outcrops of the Pampa biome in southern Brazil and Uruguay. Morphological analyses based on herbarium material, field observations, and detailed illustrations support its recognition as a distinct species from Sinningia sellovii.
Gabriel Emiliano Ferreira +4 more
wiley +1 more source
By dispersing seeds, frugivorous animals affect spatial co‐occurrence of plants, ultimately influencing plant community dynamics. Frugivorous animals are intrinsically involved in plant community dynamics, by dispersing seeds of fleshy‐fruited plants and influencing their spatial co‐occurrence.
Antonio J. Perea +8 more
wiley +1 more source
This study aimed to provide information on the biology and floral resources, stigmatic receptivity and viability of pollen grains during rainy season and dry season, and to evaluate the efficiency of natural and artificial pollination on quality of ...
Laís Alves Lage +5 more
doaj +1 more source

