Gynandromorphy in Eulaema atleticana Nemésio (Apidae, Euglossini)
EntomoBrasilis, 2012 A gynandromorph specimen of Eulaema atleticana Nemésio, the first registered in Eulaema, is described. The E. atleticana gynandromorph was captured using an eucalyptol scent trap, in the Mata do Buraquinho Reserve, an Atlantic Forest fragment.
Maxwell Souza Silveira +3 more
doaj +7 more sources
Revisión de la morfología genital masculina de Eulaema (Hymenoptera: Apidae)
Revista de Biología Tropical, 1998 Se presenta una revisión de la morfología de la cápsula genital del macho de las 15 especies de Eulaema y una caracterización del aparato copulador de cada una de ellas.
Rodulfo Ospina-Torres
doaj +6 more sources
First Case of Gynandromorphism in the Orchid-Bee Eulaema meriana (Olivier) (Hymenoptera: Apidae)
Sociobiology, 2021 The discovery of the first case of gynandromorphism in Eulaema meriana (Olivier) is described and illustrated. A specimen from Los Ríos, western Ecuador, discovered in the Instituto Nacional de Biodiversidad (MECN) collection, exhibits mostly male ...
Alex Pazmiño-Palomino +1 more
doaj +3 more sources
Eulaema chocoana, nueva especie de abeja euglosina de la Costa Pacífica Colombiana
Caldasia, 1997 Description and comparative diagnosis are given for a new species of the Genus Eulaema. Eulaema chocoana is possibly an endemic species from the biogeographic Choco area.
Ospina Torres Rodulfo
doaj +3 more sources
An elevational gradient in floral traits and pollinator assemblages in the Neotropical species Costus guanaiensis var. tarmicus in Peru. [PDF]
Ecol Evol, 2023 We analyzed floral traits and pollinator assemblages in the Neotropical species Costus guanaiensis var. tarmicus along a steep elevational gradient in Peru. Results show floral traits and pollinator assemblage variation along the elevational gradient. We examined our results considering two hypotheses: (1) local adaptation to different bee assemblages ...
Maguiña-Conde R +2 more
europepmc +2 more sources
Una nueva especie de Eulaema (Hymenoptera: Apidae) del Chocó, Colombia
Caldasia, 1997 Eulaema sorotie is described. It is a sibling species of El. meriana, apparently restricted to the Chocó area of Colombia and adjacent Ecuador, where it probably developed in a Pleistocene forest refugium.Se describe Eulaema sororia, una especie cercana ...
Dressler Robert L. +1 more
doaj +2 more sources
Floral Integration and Phenotypic Selection on Floral Traits of <i>Ipomoea cavalcantei</i> (Convolvulaceae), a Rare, Endemic, and Endangered Species to the Amazon Ironstone Outcrops. [PDF]
Ecol EvolThis paper analyzed the evolutionary potential of Ipomoea cavalcantei (an endemic species from the Amazon) by using floral integration and phenotypic selection analysis. The analyzed population presented floral integration in style length, probably due to selective pressures from pollinators on floral traits related to pollen deposition.
Valentin-Silva A +6 more
europepmc +2 more sources
Floral orientation affects outcross-pollen deposition in buzz-pollinated flowers with bilateral symmetry. [PDF]
Am J Bot, 2022 Abstract Premise Floral orientation is central to plant–pollinator interactions and is commonly associated with floral symmetry. Bilaterally symmetrical flowers are often oriented horizontally for optimal pollinator positioning and pollen transfer efficiency, while the orientation of radially symmetrical flowers is variable.
Nevard L, Vallejo-Marín M.
europepmc +2 more sources
Evolutionary convergence on hummingbird pollination in Neotropical Costus provides insight into the causes of pollinator shifts. [PDF]
New Phytol, 2022 Summary The evolution of hummingbird pollination is common across angiosperms throughout the Americas, presenting an opportunity to examine convergence in both traits and environments to better understand how complex phenotypes arise. Here we examine independent shifts from bee to hummingbird pollination in the Neotropical spiral gingers (Costus) and ...
Kay KM, Grossenbacher DL.
europepmc +2 more sources
Mountain colonization precedes shifts away from bee pollination in Melastomataceae. [PDF]
New PhytolSummary Shifts among different groups of pollinators are central in the evolution of flowering plants, yet mechanisms underlying pollinator shifts remain unclear. Environment‐induced reduction in pollinator availability and hence efficiency may destabilize ancestral plant–pollinator interactions and trigger shifts to new, more efficient pollinators ...
Kopper C +2 more
europepmc +2 more sources