Results 51 to 60 of about 97,970 (191)
Sexual dimorphism and morphological integration in the orchid bee brain [PDF]
Scientific ReportsAbstract Sex-specific behaviours are common across animals and often associated with sexual dimorphism in the nervous system. Using micro-CT scanning we standardized sex-specific brain atlases and tested for sexual dimorphism in the brain of the orchid bee Euglossa dilemma, a species with marked sex differences in social behaviour, mating ...
Yamhure-Ramírez, Denise +2 more
openaire +3 more sources
Brazilian Journal of BiologyThe orchid-bee fauna of the region of Tarapoto, northeastern Peru, was surveyed using seventeen different scents as baits to attract orchid-bee males.
A Nemésio, C Rasmussen
doaj +1 more source
The oxygen and pressure physiology of upper elevational range limits in insects
Functional Ecology, Volume 40, Issue 10, Page 3020-3033, October 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Climate warming is widely expected to cause montane insects to shift upslope, and there is good evidence that some populations are doing so. Nevertheless, patterns are mixed—with evidence supporting upslope, downslope or even no movement of both lower and upper range ...
H. Arthur Woods +2 more
wiley +1 more source
Sympatric Speciation: Perfume Preferences of Orchid Bee Lineages [PDF]
Current Biology, 2008 Female attraction to an environmentally derived mating signal released by male orchid bees may be tightly linked to shared olfactory preferences of both sexes. A change in perfume preference may have led to divergence of two morphologically distinct lineages.
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Is the “Centro de Endemismo Pernambuco” a biodiversity hotspot for orchid bees? [PDF]
Brazilian Journal of Biology, 2014 The orchid-bee faunas (Hymenoptera: Apidae: Euglossina) of the three largest forest remnants in the “Centro de Endemismo Pernambuco”, northeastern Brazil, namely Estação Ecológica de Murici (ESEC Murici), RPPN Frei Caneca, and a forest preserve belonging to Usina Serra Grande, in the states of Alagoas and Pernambuco, were surveyed using seventeen ...
Nemésio, A, Santos Junior, JE
openaire +5 more sources
Understanding the Range and Impact of Visitor Experiences at Science Museums
Curator: The Museum Journal, Volume 69, Issue 4, Page 531-545, October 2026.ABSTRACT While the core mission of science museums is to provide engaging learning experiences that promote scientific literacy among the visiting public, attention has recently been focused on the wide range of visitor experiences that surround and support visitor learning.
Jan Packer
wiley +1 more source
More than symbioses : orchid ecology ; with examples from the Sydney Region [PDF]
, 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.
Perkins, Andrew J. +2 more
core
Darwin's bee-trap: The kinetics of Catasetum, a new world orchid [PDF]
Plant Signaling & Behavior, 2008 The orchid genera Catasetum employs a hair-trigger activated, pollen release mechanism, which forcibly attaches pollen sacs onto foraging insects in the New World tropics. This remarkable adaptation was studied extensively by Charles Darwin and he termed this rapid response "sensitiveness." Using high speed video cameras with a frame speed of 1000 fps,
Nicholson, Charles C. +3 more
openaire +3 more sources
Large-range movements of neotropical orchid bees observed via radio telemetry.
PLoS 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
Berichte zur Wissenschaftsgeschichte, Volume 49, Issue 3, Page 315-334, September 2026.This article will analyze the uncertainties around collecting and classifying Hydnora africana in the first half of the nineteenth century. Emerging from the distinctive dryland ecologies of South Africa, Hydnora was interpreted as strange and cryptic by Europeans primarily because it is a root parasite—a complex floral trait that was little understood.
Katherine Arnold
wiley +1 more source