Results 31 to 40 of about 2,162 (200)
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
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
doaj +1 more source
Geographic biases and gaps in the sampling of plant–pollinator networks
Plant–pollinator interactions are essential for maintaining biodiversity and supporting food production, yet inferences drawn from network syntheses may be shaped by where interaction data are generated and which datasets are most reused. Here, we quantify the global distribution of published plant–pollinator networks, assess how publication rates vary
Emanuelle L. S. Brito +3 more
wiley +1 more source
On the botanical history and nomenclature of the New World genus Piscidia (Fabaceae)
Piscidia L. (Fabaceae) is a New World genus with nine recognized taxa (seven species and two varieties). The previous nomenclatural revisions, made in 1910 and in 1969, are revisited here. The names Derris grandifolia Heyde & Lux ex Donn.Sm. and P. cubensis Urb. required step II lectotypifications, with an epitype for the latter name.
Camila Sánchez‐ Vega +4 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
Vitex L. is a pantropical genus of Lamiaceae comprising 209 taxa. Brazil harbors 35 species, representing nearly 50% of the genus richness in the Neotropics, with the Amazon showing the highest richness, followed by the Atlantic Forest and Cerrado domains. Nevertheless, most taxonomic studies of the genus have been conducted in Africa and Asia.
Thaís Teixeira Conegiro +2 more
wiley +1 more source
Biología floral de Mammillaria huitzilopochtli, una especie rara que habita acantilados
La producción de semillas y el reclutamiento en las especies dependen en parte de factores reproductivos, tales como el comportamiento floral, la fenología de la floración, la producción de gametos y néctar, los sistemas de cruzamiento y de apareamiento,
Alejandro Flores-Martínez +3 more
doaj +1 more source
Reestablishment and a new name for Actinostemon grandifolius (Müll.Arg.) Pax
The genus Actinostemon has undergone several changes in its circumscription due to persistent difficulties in its taxonomic placement. The taxonomic history of the genus is controversial and marked by nomenclatural issues, particularly involving its type species, Actinostemon grandifolius Klotzsch, including incorrect synonymizations and the ...
Amanda O. Souza +4 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
Biologia floral e sistema de reprodução de Merostachys riedeliana (Poaceae: Bambusoideae) [PDF]
Merostachys riedeliana Rupr. e uma especie monocarpica com floracao ciclica e muito frequente em sub-bosques de fragmentos florestais do sul do estado de Minas Gerais, Brasil. Sua biologia floral e seu sistema de reproducao foram estudados e comparados com os de outros bambus.
GUILHERME, FREDERICO AUGUSTO G. +1 more
openaire +4 more sources

