Results 41 to 50 of about 1,920 (150)

Os beija-flores e seus recursos florais em um fragmento florestal de Viçosa, sudeste brasileiro

open access: yesLundiana: International Journal of Biodiversity, 2004
Between August 1998 and August 1999, hummingbirds and plant species used by an them as nectar sources were recorded in the Mata do Paraíso forest reserve. This area is a regeneration of Atlantic Forest with an area of 194.36 ha. It is located in the municipality of Viçosa, in the Forest Zone of Minas Gerais.
Carlos R. M. Abreu, Milene F. Vieira
openaire   +1 more source

Seasonal and Within‐Day Variation on Hummingbirds Visits and Dominance Hierarchy in a Brazilian Cerrado Area

open access: yesAustral Ecology, Volume 51, Issue 3, March 2026.
ABSTRACT Plant‐hummingbird interaction networks can be influenced by environmental conditions and resources, which vary seasonally and daily. We aimed to understand how variations in these parameters across these two temporal windows influence patterns of plant‐hummingbird interactions and hummingbirds dominance hierarchies in a Brazilian Cerrado ...
Jeane Lima‐Passos   +3 more
wiley   +1 more source

Climate Change Will Resize and Reshape Plant–Hummingbird Networks in the Atlantic Forest

open access: yesDiversity and Distributions, Volume 32, Issue 1, January 2026.
ABSTRACT Aim To assess how climate change could reshape plant–hummingbird interaction networks in the Atlantic Forest by predicting shifts in species co‐occurrence and evaluating changes in network structure. Location Atlantic Forest, South America.
Alejandro Restrepo‐González   +6 more
wiley   +1 more source

Biologia reprodutiva de Psychotria poeppigiana Mull. Arg. (Rubiaceae) em mata de galeria Reproductive biology of Psychotria poeppigiana Mull. Arg. (Rubiaceae) in gallery forest

open access: yesActa Botânica Brasílica, 2004
Psychotria L. (Rubiaceae) é o gênero com mais espécies heterostílicas dentre as Angiospermas. O objetivo deste trabalho é descrever a biologia floral, fenologia, o sistema reprodutivo e os polinizadores de Psychotria poeppigiana Müll. Arg.
Christiano Peres Coelho   +1 more
doaj   +1 more source

Polinização por vibração em Saxofridericia (Poales: Rapateaceae): o caso de S. brasiliensis e abelhas Euglossini

open access: yesRodriguésia, 2020
Resumo Foram realizadas observações a respeito da biologia reprodutiva de uma espécie de Rapateaceae recentemente descrita (Saxofridericia brasiliensis) em uma área de Campina Fechada periodicamente alagada.
Amauri Herbert Krahl   +3 more
doaj   +1 more source

Autoecologia de cabeça-de-frade (Melocactus ernestii Vaupel) em duas áreas de afloramentos na Bahia [PDF]

open access: yes, 2007
O gênero Melocactus possui 32 espécies descritas, ocorrendo desde a América Central até o Nordeste do Brasil, incluindo o Caribe a região Amazônica, e os Andes.
Fontes, Edilane Costa   +3 more
core   +1 more source

Temporal Dynamics of a Neotropical Plant‐Hummingbird Interaction Network

open access: yesAustral Ecology, Volume 50, Issue 7, July 2025.
Using an unprecedented sampling effort we evaluated network structure and dynamics of plant‐hummingbird interactions over 1 year in the Brazilian hyperdiverse Campos Rupestres. Network structure presented remarkable temporal change, showing that tropical communities can also be strongly influenced by climate.
Steffani N. P. Queiroz   +7 more
wiley   +1 more source

Fatores que influenciam a ocorrência de ácaros em flores de Lantana camara L. [PDF]

open access: yes, 2017
bitstream/item/12098/1/boletim_43 ...
WATANABE, M. A.
core  

Visitação de Buddleja brasiliensis (Buddlejaceae) por abelhas e beija-flores em mata higrófila de Planalto Paulista [PDF]

open access: yesCiência e Natura, 1997
The pollination of Buddleja brasiliensis in the Atlantic rainforest is carried out by small hummingbirds. This study intended to verify if these birds are also the main visitors at this plant species in an upland forest of São Paulo State. Observations on floral visitors were done at the Reserva de Santa Genebra, Campinas, between 6:00am and 6:00pm (24
openaire   +1 more source

PicoCam: High‐resolution 3D imaging of live animals and preserved specimens

open access: yesMethods in Ecology and Evolution, Volume 15, Issue 11, Page 1980-1989, November 2024.
Abstract The PicoCam system is a multi‐camera photogrammetry rig used for generating high‐resolution 3D models of animals in the field, or preserved specimens in laboratory or museum settings. The digital measurement of 3D models is increasingly useful for studying body shape. However, methods that capture sub‐millimetric detail often do so at the cost
Josh Medina   +9 more
wiley   +1 more source

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