We compared the field metabolic rate (FMR) and behavior around sugar-water feeders of sympatric territorial and non-territorial hummingbirds in the Chiricahua Mountains of southeastern Arizona during July 1987 and 1989.
Conley, Timothy M, Powers, Donald R
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Field treatment of American foulbrood in honey bees [PDF]
Typescript etc.Digitized by Kansas State University ...
Garner, John Forrest
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Specific ant-pollination in an alpine orchid and the role of floral scent in attracting pollinating ants [PDF]
Several studies have recently shown that floral scent can deter ants from flowers. However, when ants serve as reliable pollen vectors, for example in harsh, windy habitats, were flying insects are less active, plants should have evolved floral signals ...
Glaser, Florian, Schiestl, Florian
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February, 1939."Cooperative Extension Work in Agriculture and Home Economics, University of Missouri, College of Agriculture and the United States Department of Agriculture cooperating."Title from ...
Jones, G. D. (George D.) +1 more
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The Impact of Social Interactions on Torpor Use in Hummingbirds
Measurements of metabolic rate and fat deposition were made on a three-species hummingbird guild in southeastern Arizona to determine if the energetic advantage gained by a dominant territorial species (Lampornis clemenciae) over subordinate competitors (
Powers, Donald R.
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Influence of Honey Bee, Apis mellifera, Hives and Field Size on Foraging Activity of Native Bee Species in Pumpkin Fields [PDF]
The purpose of this study was to identify bee species active in pumpkin fields in New York and to estimate their potential as pollinators by examining their foraging activity.
Artz, Derek R. +2 more
core
Bacterial Communities in Central European Bumblebees: Low Diversity and High Specificity [PDF]
Recent studies on the microbial flora of the honeybee gut have revealed an apparently highly specific community of resident bacteria that might play a role in immune defence and food preservation for their hosts. However, at present, very little is known
Koch, Hauke, Schmid-Hempel, Paul
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Nectar robbing in bellflower (Sesamum radiatum) benefited pollinators but unaffected maternal function of plant reproduction. [PDF]
Varma S, Sinu PA.
europepmc +1 more source
Effects of nectar robbing on male and female reproductive success of a pollinator-dependent plant. [PDF]
Rojas-Nossa SV, Sánchez JM, Navarro L.
europepmc +1 more source
Florivory and nectar-robbing perforations in flowers of pointleaf manzanita Arctostaphylos pungens (Ericaceae) and their effects on plant reproductive success. [PDF]
Eliyahu D +3 more
europepmc +1 more source

