Results 91 to 100 of about 1,970 (204)

Biogeography of Endemic Dragonflies of the Ozark-Ouachita Interior Highlands [PDF]

open access: yes, 2019
A common pattern across many taxonomic groups is that relatively few species are widespread while the majority are restricted in their geographic ranges. Such species distributions are used to inform conservation status, which poses unique challenges for
Boys, Wade Alexander
core   +2 more sources

Novel diagnostic tools for Asian (Apis cerana) and European (Apis mellifera) honey authentication [PDF]

open access: yes, 2018
Honey can be produced by different species of honeybees, with two being of economic importance due to their use in apiculture, namely Apis mellifera (known as European honeybee) and Apis cerana (known as Asian honeybee).
Amaral, Joana S.   +7 more
core   +1 more source

Orchid bees as bio-indicators for organic coffee farms in Costa Rica: Does farm size affect their abundance?

open access: yesRevista de Biología Tropical, 2006
The potential of Euglossini bees, especially Euglossa, as biological indicators of organic vs non-organic coffee farms was studied in Atenas and San Isidro, Alajuela, Costa Rica using 1.8-cineole as lure.
Ingemar Hedström   +2 more
doaj   +2 more sources

Tipos polinicos presentes no corpo de abelhas em assentamentos agrosilvipastoris do Município de Parauapebas e Nova Ipixuna, Pará. [PDF]

open access: yes, 2015
Organizado por Daiana Rockenbach ...
DIAS, A. C. R.   +4 more
core  

More than symbioses : orchid ecology ; with examples from the Sydney Region [PDF]

open access: yes, 2013
The Orchidaceae are one of the largest and most diverse families of flowering plants. Orchids grow as terrestrial, lithophytic, epiphytic or climbing herbs but most orchids native to the Sydney Region can be placed in one of two categories.
Entwisle, Timothy J.   +2 more
core  

Abrupt decrease in the diversity of Euglossini bees (Hymenoptera: Apidae) in a montane rainforest

open access: yesJournal of Apicultural Research, 2019
Euglossini bees are more diverse in tropical and subtropical rainforests in the Neotropics and their distribution may have a strong influence of altitude. These bees are considered important pollinators being able to cross long distances in continuous forests.
Alessandra Ribeiro Pinto   +3 more
openaire   +1 more source

The bees of Greater Puerto Rico (Hymenoptera: Apoidea: Anthophila) [PDF]

open access: yes, 2008
The bee fauna of the Greater Puerto Rico area was studied. A review of the previous relevant studies is presented. An annotated catalog and information about the origin and distributional patterns are also provided.
Franz, Nico M., Genaro, Julio A.
core   +1 more source

Polinizadores y polinización en frutales subtropicales : implicaciones en manejo, conservación y seguridad alimentaria [PDF]

open access: yes, 2018
The commercialization and consumption of tropical fruits has grown worldwide during the last decade. This trend is expected to continue, due to the increasing world population and the greater demand for these products in western markets. As in most fruit
Alcaraz, Librada   +5 more
core   +2 more sources

Prachtbienenfunde aus Panguana, Huánuco, Peru (Hymenoptera, Apidae, Euglossini)

open access: yes, 2002
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Habitat shifts in the evolutionary history of a Neotropical flycatcher lineage from forest and open landscapes [PDF]

open access: yes, 2008
Background Little is known about the role ecological shifts play in the evolution of Neotropical radiations that have colonized a variety of environments.
Frank E Rheindt   +2 more
core   +2 more sources

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