Results 111 to 120 of about 158,284 (274)

Foraging behaviour of equatorial Afrotropical stingless bees: habitat selection and competition for resources [PDF]

, 2008
This thesis is a result of fieldwork on foraging ecology of Afrotropical stingless bees in Uganda. This is because most studies on stingless bee ecology are largely based in South America and South-east Asia and have ignored the aspects of Afrotropical ...
Dep Biologie, Behaviour of Tropical Bees, Kajobe, R.   +2 more
core   +1 more source

Does the Rule of Law Require the Separation of Powers?

The Modern Law Review, EarlyView.
The separation of powers is an enigmatic political ideal, particularly in the context of the modern administrative state, in which administrative officials routinely perform a combination of legislative, judicial, and executive functions. In this article we reexamine this ideal by interrogating Adrian Vermeule's provocative claim that the separation of
Dimitrios Kyritsis, Matthew Lewans
wiley   +1 more source

Revised guidance on the risk assessment of plant protection products on bees (<i>Apis mellifera</i>, <i>Bombus</i> spp. and solitary bees). [PDF]

EFSA J, 2023
European Food Safety Authority (EFSA), Adriaanse P, Arce A, Focks A, Ingels B, Jölli D, Lambin S, Rundlöf M, Süßenbach D, Del Aguila M, Ercolano V, Ferilli F, Ippolito A, Szentes C, Neri FM, Padovani L, Rortais A, Wassenberg J, Auteri D.   +18 more
europepmc   +1 more source

Nesting behaviour and population genetics of solitary bees (Hymenoptera: Anthophila)

, 2013
My thesis is focused on nesting behaviour and population genetics of solitary bees. These two topics, although seemingly unrelated, bring much new information and thus contribute to the better understanding of solitary bee biology that is still ...
Černá, Kateřina
core  

Brood parasitism reduces but does not prevent Bombus terrestris reproductive success

Insect 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

Layered abandonment: The moral interpretation of suffering in extreme confinement

Criminology, EarlyView.
Abstract Loss and rejection are central to prison life, yet how they crystallize into a more general sense of abandonment remains under‐theorized. Drawing on 64 interviews with men held in prolonged self‐isolation or serving indeterminate forvaring sentences in Denmark, we conceptualize abandonment not simply as hardship but as suffering plus ...
Frederik Rom Taxhjelm, Julie Laursen
wiley   +1 more source

A systematic scoping review of the methodological approaches and effects of pesticide exposure on solitary bees. [PDF]

PLoS One, 2021
Lehmann DM, Camp AA.
europepmc   +1 more source

Potential Correlation Between Bombus lantschouensis Thoracic Morphology and Flight Behavior

Integrative 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, Sipei Liu, Le Zong, Zhengzhong Huang, Lei Jiang, Xiaokun Liu, Pingping Yang, Yitian Zhang, Zhong Du, Weili Fan, Zhuanghui Qin, Xieshuang Wang, Xinying Zhang, Xiaolong Wang, Haodong Yin, Jiandong An, Chaodong Zhu, Michael C. Orr, Jiangning Wang, Siqin Ge   +19 more
wiley   +1 more source

Use of Social Bees and Solitary Bees as Bioindicators of Environmental Contamination

International Journal For Multidisciplinary Research
With an emphasis on the biology of bee nesting, their ecological functions, and their efficacy in determining heavy metal pollution, this review paper summarises current research on bees as bioindicators of environmental contamination. Review brought attention to the solitary nesting behaviours of species such as Epanthidium tigrinum and Megachile ...
Karan K. Deokar -, Saurabh S. Joshi -
openaire   +1 more source

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

Integrative 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, Donald James Mclean, Nikolas J. Willmott, Michael B. J. Kelly, Jay R. Black, Elizabeth C. Lowe, Marie E. Herberstein   +6 more
wiley   +1 more source