Results 51 to 60 of about 205,142 (247)

Organic agricultural landscapes promote the conservation and diversity of cavity-nesting solitary bees

open access: yesGlobal Ecology and Conservation
Solitary bees are important pollinators and maintain biodiversity in agricultural landscapes, yet their populations are declining due to habitat loss, intensive farming and pesticide use.
Tina Betty Schultz   +4 more
doaj   +1 more source

Using citizen science to examine the nesting ecology of ground‐nesting bees

open access: yesEcosphere, 2019
Suitable nest sites are a crucial habitat requirement of ground‐nesting bees, but empirical studies of fossorial solitary bee nesting ecology in the UK are few in number.
Stephanie Maher   +2 more
doaj   +1 more source

The ecology of solitary bees

open access: yesHilgardia, 1958
Bees play an important and necessary role in the pollination of agricultural crops grown for fruit and seed and of forage and browse plants important in range management for production of both livestock and game animals. Nearly 20,000 different kinds of bees are now known, some, like the imported honey bee, the bumble bees ...
openaire   +2 more sources

Carrion ecology: concepts, interdisciplinary synthesis, and perspectives

open access: yesBiological Reviews, EarlyView.
ABSTRACT Carrion is a ubiquitous resource in both terrestrial and aquatic ecosystems, yet it has long been overlooked in ecological research. Over the past two decades, studies on carrion and the many organisms that exploit it have flourished, revealing not only wide‐ranging ecological functions but also significance far beyond ecology.
Marcos Moleón   +38 more
wiley   +1 more source

An intrusion layer in stationary incompressible fluids Part 2: A solitary wave [PDF]

open access: yes, 2006
The propagation of a solitary wave in a horizontal fluid layer is studied. There is an interfacial free surface above and below this intrusion layer, which is moving at constant speed through a stationary density-stratified fluid system.
Forbes, L.K., Hocking, G.C.
core  

Effects of heat shocks, heat waves, and sustained warming on solitary bees

open access: yesFrontiers in Bee Science
Along with higher average temperatures, global climate change is expected to lead to more frequent and intense extreme heat events, and these different types of warming are likely to differ in their effects on bees. Although solitary bees comprise >75%
Kaleigh A. Vilchez-Russell   +1 more
doaj   +1 more source

Wild Bee Pollen Diets Reveal Patterns of Seasonal Foraging Resources for Honey Bees

open access: yesFrontiers in Ecology and Evolution, 2018
Western honey bees (Apis mellifera) are dominant crop pollinators, and access to summer forage is a critical factor influencing colony health in agricultural landscapes.
Thomas James Wood   +2 more
doaj   +1 more source

SYN‐A, a naturally derived synergist, restores pyrethroid efficacy against cabbage stem flea beetle but negatively impacts its parasitoid Microctonus brassicae

open access: yesPest Management Science, EarlyView.
SYN‐A, a naturally derived synergist, inhibited key metabolic pathways associated with pyrethroid insecticide resistance in cabbage stem flea beetle (CSFB) and its parasitoid Microctonus brassicae. SYN‐A restored pyrethroid efficacy against resistant CSFB allowing up to 80% reduction in application rates.
Patricia A. Ortega‐Ramos   +2 more
wiley   +1 more source

A global investigation of solitary-wave solutions to a two-parameter model for water waves [PDF]

open access: yes, 1996
The model equation (2r''''/15)-(br'')+(ar)+(3r^2/2)-((r')^2/2)+[rr']'=0 arises as the equation for solitary-wave solutions to a fifth-order long-wave equation for gravitycapillary water waves.
Groves, MD, Champneys, AR
core  

Lethal and Sublethal Effects of Pyriproxyfen on Apis and Non-Apis Bees

open access: yesToxics, 2020
Pyriproxyfen is a juvenile hormone mimic used extensively worldwide to fight pests in agriculture and horticulture. It also has numerous applications as larvicide in vector control.
James Devillers, Hugo Devillers
doaj   +1 more source

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