Results 31 to 40 of about 694 (186)

Pollinator efficiency, rather than bee decline, explains a shift to hummingbird pollination in tropical montane forests. [PDF]

New Phytol
Hummingbird pollination is a hallmark of American plant diversity and has long been thought to evolve in tropical mountains due to declining bee activity. Using sister species of Costus specialized on bees (C. kuntzei) and hummingbirds (C. wilsonii), we show that this shift is not driven by reduced bee visitation with elevation, but by greater ...
Juárez P, Gerhardt K, Hughes E, Girvin C, Dellith-Moser A, Tenorio D, Livak A, Kay KM.   +7 more
europepmc   +2 more sources

The importance of plant diversity in maintaining the pollinator bee, Eulaema nigrita (Hymenoptera: Apidae) in sweet passion fruit fields [PDF]

Revista de Biología Tropical, 2012
The euglossine bee Eulaema nigrita plays an important role for the pollination of native and economically important plants, such as the sweet passion-fruit Passiflora alata. E. nigrita uniquely collects the nectar from the flowers of P. alata, nevertheless, it needs to visit other plants to collect pollen, nectar and other resources for its survival ...
da Silva, Cláudia Inês, Gomes Bordon, Natali, da Rocha Filho, Léo Correia, Garófalo, Carlos Alberto   +3 more
openaire   +9 more sources

An integrative approach to delimit species in the Eulaema cingulata and Eulaema pseudocingulata pair (Hymenoptera: Apidae) using morphometric and molecular evidence [PDF]

, 2021
The study of species delimitation has been a rich scientific field that makes use of different sources of data in order to identify independently evolving lineages that might be recognized as species.
Andrade, Tamires de Oliveira
openaire   +3 more sources

Orchid bees enhance seed set production of an understory herb in the Western Brazilian Amazon

Journal of Pollination Ecology, 2023
Bee pollination is an important ecosystem service related to the maintenance of many flowering plants. We evaluated the relationship between orchid bee foraging time and the density of flowering plants and whether visitation varied according to the sex ...
Thaline Brito, Daniel Silva, Felipe Contrera, Márcia Maués, Elder Morato   +4 more
doaj   +1 more source

Going up: new altitudinal records of orchid bees (Hymenoptera: Apidae) in the inter-Andean valleys of southern Ecuador and their potential dispersal route

Revista Chilena de Entomología, 2023
Orchid bees are a conspicuous and ecologically important group of insects, commonly distributed at medium and low altitudes in tropical ecosystems. Therefore, new recordings of orchid bees at higher altitudes are interesting.
Manuela Burbano, Michelle Armijos
doaj   +1 more source

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 Evol
This 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, da Costa ACG, Domingos-Melo A, da Costa LEN, Silva KR, da Silva Carvalho C, Watanabe MTC.   +6 more
europepmc   +2 more sources

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

New 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, Schönenberger J, Dellinger AS.   +2 more
europepmc   +2 more sources

Plants, Pollinators and Pheromones: Promises and Lies of Semiochemicals. [PDF]

Plant Cell Environ
ABSTRACT Pollination is traditionally regarded as a quintessential mutualism, yet many plants employ deceptive strategies to achieve reproductive success. Among the most intriguing is sexual deception, wherein flowers mimic the sex pheromones and visual signals of female insects to attract male pollinators—without providing any reward.
Slavković F, Bendahmane A.
europepmc   +2 more sources

Abundância e diversidade de abelhas Euglossina (Hymenoptera: Apidae) da Serra do Tepequém, município de Amajari, Roraima, Brasil.

Agro@mbiente On-line, 2013
Com o objetivo de contribuir para o conhecimento da ecologia de Euglossina na Região Amazônica, foi realizado um levantamento da fauna Euglossina da Serra do Tepequém, Município de Amajari, Roraima, Brasil.
Sívio José Reis da Silva, Jaime de Liege Gama Neto, Fernanda da Silva Parente   +2 more
doaj   +1 more source

Eulaema Lepeletier

, 2011
Genus Eulaema Lepeletier de Saint Fargeau, 1841 Eulaema Lepeletier de Saint Fargeau, 1841: 11 Type species: Apis dimidiata Fabricius, 1793, by designation of Smith, 1874: 441. Eulaenia Spinola, 1851: 167 Lapsus for Eulaema Lepeletier de Saint Fargeau, 1841.
Nemésio, André, Rasmussen, Claus
openaire   +2 more sources