Results 91 to 100 of about 7,446 (265)

The role of solitary bees in the ecosystem

open access: yes, 2021
Solitarne pčele čine oko 85% svih vrsta pčela, a kao najznačajniji oprašivači entomofilnih biljaka imaju nezamjenjivu ulogu u odrţavanju ekosustava. Iako su vrlo brojni i iznimno kvalitetni oprašivači, tek se mali broj vrsta koristi u komercijalne svrhe ...
Igaly, Ema
core  

From individuals to networks: The role of variation in plant–pollinator communities' responses to global change

open access: yesJournal of Animal Ecology, EarlyView.
This paper argues that variation among individuals—not just species differences—can shape the sensitivity, robustness and resilience of plant–pollinator communities under global change. By linking individual traits and interaction structure to network dynamics, it provides a new framework and future research directions for predicting community ...
James DeWitt Crall   +1 more
wiley   +1 more source

Proventricular structure in solitary bees (Hymenoptera: Apoidea) [PDF]

open access: yes, 2005
Proventricular structure, analyzed by scanning electronic microscopy, is compared among 28 species of solitary bees representing four families. Observations on the shapes of proventricular folds and on hair-like cuticular projections are presented ...
Serrão, José Eduardo
core   +1 more source

Does Decreasing the Generosity of Payments to Single Parents Have Employment and Earnings Effects? Evidence from Australian Administrative Data*

open access: yesEconomic Record, EarlyView.
We examine the impact of two changes to Australia's Parenting Payment Single (PPS) program, a welfare payment for low‐income single mothers. One change lowered the age of the youngest child cut off for program eligibility, forcing new welfare entrants onto the less generous Newstart (unemployment) payment.
Kristen Sobeck, Robert Breunig
wiley   +1 more source

Brood parasitism reduces but does not prevent Bombus terrestris reproductive success

open access: yesInsect Science, EarlyView.
Graphical depiction of the colony splitting process. Throughout figures in this paper, results pertaining to host success are represented in blue, and cuckoo success is represented in red. Abstract Cuckoo bumblebees are obligate brood parasites that must invade a colony of their host bumblebee species in order to reproduce.
Sofia Dartnell, Lynn V. Dicks
wiley   +1 more source

Non-linear bioconvection in a deep suspension of gyrotactic swimming micro-organisms [PDF]

open access: yes, 1999
The non-linear structure of deep, stochastic, gyrotactic bioconvection is explored. A linear analysis is reviewed and a weakly non-linear analysis justifies its application by revealing the supercritical nature of the bifurcation. An asymptotic expansion
Hill, N., N A Hill, Bees, M., M A Bees
core  

Potential Correlation Between Bombus lantschouensis Thoracic Morphology and Flight Behavior

open access: yesIntegrative Zoology, EarlyView.
Potential correlation between Bombus lantschouensis thoracic morphology and flight behavior. ABSTRACT Remarkably little modern work has investigated the thoracic structures of insects and their relationship to flight locomotion. Most studies focus exclusively on either morphology or flight kinematics.
Wenjie Li   +19 more
wiley   +1 more source

Solitary Bees for Orchard Pollination

open access: yes, 1997
Contrary to our usual idea that bees• live in hives, with queens, workers, and drones, most bees cannot be hived, are not social, don\u27t store honey, and rarely sting. The introduced, European honey bee is a highly specialized exception, rather than a
Batra, Suzanne W.T.
core  

Volumetric Comparison of Overall Brain and Neuropil Size Between Social and Non‐social Spiders: Exploring the Social Brain Hypothesis

open access: yesIntegrative Zoology, EarlyView.
Brain size may be influenced by the cognitive demands of sociality (social brain hypothesis). We used microCT to compare CNS and brain volumes in social versus solitary huntsman and crab spiders. Social huntsman spiders had larger arcuate and mushroom bodies, while social crab spiders had larger visual neuropils.
Vanessa Penna‐Gonçalves   +6 more
wiley   +1 more source

Brownfield Meets the Bees\u27 Needs: The William J. Robertson Nature Preserve Provides a Safe Haven for Solitary Native Bees

open access: yes, 2023
In the last 20 years, public perception of native bees has grown from a bare understanding to recognizing their important role in many ecosystem functions.
Arons, Ash
core  

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