Results 11 to 20 of about 105 (88)

Notes on the Bee-Genus Exaerete [PDF]

open access: yesPsyche: A Journal of Entomology, 1908
Psyche: A Journal of Entomology, Volume 15, Issue 2, Page 41-42, 1908.
T. D. A. Cockerell
doaj   +3 more sources

A Preliminary Checklist of the Orchid Bees (Hymenoptera: Apidae: Euglossini) of Ecuador

open access: yesPsyche: A Journal of Entomology, 2018
A checklist of Euglossini in Ecuador is given, including all currently described, valid species collected until 2018. The list has been assembled from museum records, fieldwork cited herein, and literature.
Pablo S. Padrón   +2 more
doaj   +2 more sources

An elevational gradient in floral traits and pollinator assemblages in the Neotropical species Costus guanaiensis var. tarmicus in Peru. [PDF]

open access: yesEcol 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

Evolutionary convergence on hummingbird pollination in Neotropical Costus provides insight into the causes of pollinator shifts. [PDF]

open access: yesNew 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

Diversidad genética de la abeja Exaerete smaragdina (Guérin, 1844) (Hymenoptera: Apidae: Euglossini) en el suroccidente colombiano

open access: yesBiota Colombiana
Este artículo explora la influencia de las cordilleras sobre el flujo génico de Exaerete smaragdina, una abeja de amplia distribución en Colombia y de gran importancia en el sostenimiento de la diversidad florística de sistemas naturales, gracias a su ...
Vianny Plaza-Ortega   +4 more
doaj   +2 more sources

Mountain colonization precedes shifts away from bee pollination in Melastomataceae. [PDF]

open access: yesNew Phytol
Summary 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

The evolution of floral sonication, a pollen foraging behavior used by bees (Anthophila). [PDF]

open access: yesEvolution, 2018
Abstract Over 22,000 species of biotically pollinated flowering plants, including some major agricultural crops, depend primarily on bees capable of floral sonication for pollination services. The ability to sonicate (“buzz”) flowers is widespread in bees but not ubiquitous.
Cardinal S, Buchmann SL, Russell AL.
europepmc   +2 more sources

Movement of nest‐searching bumblebee queens reflects nesting habitat quality

open access: yesEcological Entomology, Volume 47, Issue 5, Page 719-727, October 2022., 2022
We found that nest‐searching Bombus impatiens queens search more thoroughly in land cover types associated with high nest densities (forests and meadows) than low‐quality habitat (hay fields). Our results support the theoretical prediction that animals move in a way that increases time spent in higher‐quality habitat.
Genevieve Pugesek, Elizabeth E. Crone
wiley   +1 more source

Long‐term (1979–2019) dynamics of protected orchid bees in Panama

open access: yesConservation Science and Practice, Volume 3, Issue 12, December 2021., 2021
We gathered quantitative data on 33 species of an intact orchid bee community in lowland forest. Our two studies combined included half the months during 50 years' monitoring. Most species increased or were stable, but the declines included some of the most common and, therefore, unthreatened species.
David W. Roubik   +5 more
wiley   +1 more source

Phylogeny of the cleptoparasitic bee genusExaerete(Hymenoptera: Apidae) [PDF]

open access: yesApidologie, 2007
Relationships among the species of Exaerete Hoffmannsegg (Apinae: Euglossini) were explored based on new morphological data and including new taxa described since the study of Engel (Am. Mus. Novit. 3272, 1–14, 1999). Analysis of the data matrix was undertaken in NONA using the WinClada interface and resulted in a single topology of length 39, CI 0.66,
Evandson José dos Anjos-Silva   +2 more
openaire   +1 more source

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