Results 11 to 20 of about 4,517 (212)

Sex- and Male-Morph-Specific Variation in Brain Mass and Cell Number Scaling in Solitary Centris pallida (Hymenoptera: Apidae) Bees. [PDF]

J Comp Neurol
We counted the number of cells in bees’ brains. Female C. pallida bees have more neurons in their brains overall than males. Small male morph bees had fewer cells and reduced densities in the visual input brain regions than large morph males, despite specializing on sight to find mates.
Barrett M, Godfrey RK.
europepmc   +2 more sources

Dimorphic enantiostyly and its function for pollination by carpenter bees in a pollen-rewarding Caribbean bloodwort. [PDF]

Am J Bot
Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Johnson SD, Midgley JJ, Bocourt-Hernandez LG, Loiret FG, Ortega-Rodés P, Illing N.   +5 more
europepmc   +2 more sources

Structural and Functional Co-Adaptation of Plants of the Genus <i>Lysimachia</i> L. (Primulaceae) and Pollinating Insects of the Genus <i>Macropis</i> Panzer (Hymenoptera, Melittidae). [PDF]

Ecol Evol
The co‐adaptation of bees from the genus Macropis and Lysimachia plants has been studied in detail. Research shows that bees collect not just pure liquid oil from flower petals but tear off trichome heads filled with oil, transferring them to their nests.
Radchenko VG, Chausov MG, Likhanov AF, Honchar HY, Michez D.   +4 more
europepmc   +2 more sources

Fine-tuning the buzz: comparing visitation frequency and pollination effectiveness in plant-pollinator networks. [PDF]

New Phytol
Summary Ecological network approaches have advanced our understanding of how species interactions influence community and evolutionary dynamics. However, a key limitation is that most network analyses rely solely on visitation data, often overlooking functional aspects of interactions.
Valadão-Mendes LB, Santana PC, Rech AR, Brito VLG, Maruyama PK.   +4 more
europepmc   +2 more sources

The species of the bee genus Centris of the “hyptidis group” revisited with the description of Centris (Anisoctenodes) new subgenus (Hymenoptera: Apidae: Centridini)

European Journal of Taxonomy, 2020
In this paper, the species of Centris of the “hyptidis group” are revisited, proposing to recognize them as members of Anisoctenodes subgen. nov., a new subgenus supported by morphological and molecular data. The species included in this new taxon are C. 
Felipe Vivallo
doaj   +1 more source

Pollination ecology and breeding system of two Calceolaria species in Chile [PDF]

, 2014
Indexación: Web of Science; Scielo.Many angiosperms are exclusively dependent on pollinators for its reproduction (Matallana et al.2010; Arroyo et al. 2006).
Cisterna, Jannina, Murúa, Maureen, Rosende, Benito   +2 more
core   +3 more sources

Pollination and plant reproduction in the Cerrado, the world's most biodiverse savanna. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT The Brazilian Cerrado is a continental‐wide biodiversity hotspot and the most species‐rich savanna ecosystem in the world. The main aspect characterising this biodiversity is that the landscape is arranged as an intricate mosaic of different plant formations, including grasslands, savannas, and forests, each harbouring distinct but ...
Cardoso JCF, Trevizan R, Maruyama PK, Caetano APS, Gonçalves RV, Antonini Y, Oliveira PE.   +6 more
europepmc   +2 more sources

Ocorrência de Centris (Hemisiella) vittata Lepeletier (Hymenoptera: Apidae: Centridini) no Cerrado s.l. do nordeste do Maranhão, Brasil Occurrence of Centris (Hemisiella) vittata Lepeletier (Hymenoptera: Apidae: Centridini ) in the Cerrado s.l. Bioma of Maranhão, Northeastern Brazil

Acta Amazonica, 2007
Fêmeas de Centris vittata Lepeletier foram observadas visitando flores de Byrsonima sp. e nidificando em troncos de Astronium sp. (Anacardiaceae) em uma área de Mata Mesofítica, em Urbano Santos (3º 12' 28''S; 43º24'12''), Maranhão, Brasil.Females of ...
Marina da Costa Ramos, Márcia Maria Correia Rêgo, Patrícia Maia Corrêa de Albuquerque   +2 more
doaj   +1 more source

Discovering new floral visitors of four Chilean endemic orchids

Gayana, 2019
Orchidaceae is a diverse group with conservation issues all over the World. Due to its endangered situation, knowledge about its reproductive biology is needed to plan conservation strategies. We conducted a study during October 2016 and October 2017 in
Víctor H. Monzón, Rodrigo O. Araujo, Patricio Avedaño, Rubén Garrido, José N. Mesquita-Neto   +4 more
doaj   +1 more source

Collection of floral resources by bees in Solanum lycocarpum A.St.-Hil. (Solanaceae): interference of abiotic factors and need for buzzing behavior

EntomoBrasilis, 2023
The foraging activity of floral visitors is influenced by habitat conditions and abiotic factors. The aim of this research was to define the faunal composition of the visitor community in Solanum lycocarpum A.St.-Hil.
Paulo Roberto de Abreu Tavares, Glaucia Almeida de Morais, Michele Castro de Paula, Jessica Amaral Henrique, Leandro Pereira Polatto, Valter Vieira Alves Junior   +5 more
doaj   +1 more source