Results 81 to 90 of about 333,670 (247)

Large-range movements of neotropical orchid bees observed via radio telemetry.

open access: yesPLoS ONE, 2010
Neotropical orchid bees (Euglossini) are often cited as classic examples of trapline-foragers with potentially extensive foraging ranges. If long-distance movements are habitual, rare plants in widely scattered locations may benefit from euglossine ...
Martin Wikelski   +7 more
doaj   +1 more source

The Victorian Naturalist [PDF]

open access: yes, 1927
v.44 (1927 ...
Barnard, F. G. A.   +4 more
core   +1 more source

Do rewardless orchids show a positive relationship between phenotypic diversity and reproductive success? [PDF]

open access: yes, 2007
Among rewardless orchids, pollinator sampling behavior has been suggested to drive a positive relationship between population phenotypic variability and absolute reproductive success, and hence population fitness.
Gigord, L. D.   +3 more
core   +1 more source

The maternal role of community‐dwelling older women: A qualitative study

open access: yesFamily Relations, Volume 75, Issue 1, Page 197-212, February 2026.
ABSTRACT Objective To explore the maternal role through the subjective experiences of community‐dwelling older mothers. Background Participation in meaningful life roles is essential for older adults' health. Motherhood, a meaningful life role of many women, includes various activities, but research has not focused on this role at older age. This study
Ruth Maman   +3 more
wiley   +1 more source

Fluorescent colors in orchid bees (Hymenoptera: Apidae) [PDF]

open access: yesNeotropical Entomology, 2005
The presence of UV-fluorescent pigments is described for the first time in insects. The clear hairs on terga I, III and IV of Eulaema niveofasciata (Friese) are the only ones among several Euglossina species which fluoresce, supporting recent taxonomic studies which suggested that this endemic species of the Atlantic Forest domain and Eulaema ...
openaire   +3 more sources

Diversity and community composition of euglossine bee assemblages (Hymenoptera: Apidae) in western Amazonia [PDF]

open access: yes, 2018
Tropical forests are known for their diverse insect fauna. We aimed to determine the effect and relative importance of latitude, elevation and climatic factors affecting species richness and turnover in euglossine bee assemblages along a gradient of 18 ...
Abrahamczyk, Stefan   +3 more
core  

Creativity and Autonomy in Swarm Intelligence Systems [PDF]

open access: yes, 2012
This work introduces two swarm intelligence algorithms -- one mimicking the behaviour of one species of ants (\emph{Leptothorax acervorum}) foraging (a `Stochastic Diffusion Search', SDS) and the other algorithm mimicking the behaviour of birds flocking (
A Clark   +29 more
core   +1 more source

Seasonal changes in odour preferences by male euglossine bees (Hymenoptera: Apidae) and their ecological implications [PDF]

open access: yes, 2018
Orchid bees are an important group of specialized insect pollinators in the Neotropics. Male orchid bees are attracted by a wide range of aromatic substances often produced by flowers.
Abrahamczyk, Stefan   +2 more
core  

Exploring narratives of human–nature connections in protected areas

open access: yesPeople and Nature, Volume 8, Issue 1, Page 37-50, January 2026.
Abstract Protected areas have become the most widespread strategy for nature conservation, and are currently expanding worldwide. Many of them are inhabited or close to inhabited areas, shaping and being shaped by connections between people and nature. These connections are not always positive.
Marion Jay   +4 more
wiley   +1 more source

Different Physiognomies and the Structure of Euglossini bee (Hymenoptera: Apidae) Communities

open access: yesSociobiology, 2018
Our aim was to evaluate the occurrence of orchid bees in remnants of the Atlantic Forest. We sampled specimens from five regions of Southeast Brazil, covering three different physiognomies of the Atlantic Forest (mixed Araucaria forests with high ...
Clycie Aparecida da Silva Machado   +2 more
doaj   +1 more source

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