Results 91 to 100 of about 101,101 (246)
Tachinidae (Diptera) as Floral Visitors and Pollinators in Natural and Managed Systems
Entomologia Experimentalis et Applicata, EarlyView.We review the roles of bristle flies (Tachinidae) as pollinators in natural and managed systems. We find that most tachinid genera visit flowers and that floral‐adapted mouthparts have evolved repeatedly many times in the family. We review patterns of floral specificity and assess the efficacy of tachinids as pollinators with case studies.
John O. Stireman III +1 more
wiley +1 more source
Ecological Entomology, EarlyView.Yeasts that specialize in flower nectar play an important role in pollination ecology. Metschnikowia reukaufii and Metschnikowia koreensis were the most prevalent nectar yeasts found in our field sites. Bee pollinators exhibited different behavioural responses to nectar yeasts in field experiments. Bees visited more flowers with M.
M. Elizabeth Moore +8 more
wiley +1 more source
PLoS ONEIn a time of increasing threats to bumble bees (Hymenoptera: Apidae: Bombus), it is important to understand their ecology and distribution. As experts are limited in resources to conduct field surveys, there is potential for community scientists to help.
Victoria J MacPhail +2 more
doaj +1 more source
The transcription factor
BMC Evolutionary Biology, 2010 Background Regulation of worker behavior by dominant queens or workers is a hallmark of insect societies, but the underlying molecular mechanisms and their evolutionary conservation are not well understood.
Fan Yongliang +5 more
doaj +1 more source
Brood care by male bumble bees [PDF]
Proceedings of the National Academy of Sciences, 1985 Male Bombus griseocollis (Hymenoptera: Apidae) share in the brood care of nestmates by incubating pupae (usually during the first few days after they emerge as adults). Male posture during incubation of a pupa is identical to that observed for females.
openaire +2 more sources
Habitat type shapes the restructuring of peatland dragonfly communities over two decades
Ecological Entomology, EarlyView.Species richness increased in open raised bogs over two decades, while conservation value declined and thermal composition shifted towards warm‐affinity species in the same habitat. Five of six high‐conservation‐value species declined by 54%–85% in abundance per visit.
Attila Balázs +2 more
wiley +1 more source
Laboratory studies examining aspects of scent marking, traplining and remote detection of reward in the foraging bumblebee. [PDF]
, 2007 PhDEnergy from food is essential for the survival of all animals. For decades, bumblebees have been used as model organisms for studying animal foraging strategies.
Saleh, Nehal
core +2 more sources
Difference and the Liberation of Sufficient Reason
European Journal of Philosophy, EarlyView.Abstract The Principle of Sufficient Reason (PSR) holds that every event and entity can be explained by a sufficient reason or cause. Philosophers have long struggled with the question of the PSR's compatibility with freedom, for if what occurs or exists follows necessarily from its sufficient reason then it seems it could not have been otherwise ...
Louis Matheou
wiley +1 more source
Does hope help? Climate emotions and the chances for change
Ethos, EarlyView.Abstract Hope is sometimes dismissed as a feel‐good attitude that discourages people from taking meaningful action. In climate debates, many activists and scholars frame fear as a more effective motivator than hope. Yet in rural Namibia and Kenya, as well as in several recent social movements, hope is experienced as a vital force that sustains people ...
Michael Schnegg, Julian Sommerschuh
wiley +1 more source
Roadside pollinator populations and the negative impact of intensive roadside vegetation maintenance
Insect Conservation and Diversity, EarlyView.Less intensively managed roadsides had higher numbers of flower flies and bees; bee diversity was also higher in those roadsides. Community composition was similar across both management types, indicating that roadsides support a fairly homogeneous pollinator community, regardless of management.
Gil F. G. Miranda +5 more
wiley +1 more source