Results 71 to 80 of about 32,052 (317)

Succession influences wild bees in a temperate forest landscape: the value of early successional stages in naturally regenerated and planted forests. [PDF]

open access: yesPLoS ONE, 2013
In many temperate terrestrial forest ecosystems, both natural human disturbances drive the reestablishment of forests. Succession in plant communities, in addition to reforestation following the creation of open sites through harvesting or natural ...
Hisatomo Taki   +6 more
doaj   +1 more source

Vitellogenin Underwent Subfunctionalization to Acquire Caste and Behavioral Specific Expression in the Harvester Ant Pogonomyrmex barbatus [PDF]

open access: yes, 2013
PMCID: PMC3744404This is an open-access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.
A Bourke   +75 more
core   +4 more sources

Sentience in cephalopod molluscs: an updated assessment

open access: yesBiological Reviews, EarlyView.
ABSTRACT This article evaluates the evidence for sentience – the capacity to have feelings – in cephalopod molluscs: octopus, cuttlefish, squid, and nautilus. Our framework includes eight criteria, covering both whether the animal's nervous system could support sentience and whether their behaviour indicates sentience.
Alexandra K. Schnell   +4 more
wiley   +1 more source

Ecology and evolution of pyrazines in insects

open access: yesBiological Reviews, EarlyView.
ABSTRACT Chemical communication is the oldest and most widespread form of signalling among and within organisms. Among the many compounds involved in such communication, pyrazines – nitrogen‐containing heterocyclic molecules – are especially intriguing due to their widespread occurrence across the tree of life, from bacteria and fungi to insects and ...
Zowi Oudendijk   +2 more
wiley   +1 more source

Exploring integument transcriptomes, cuticle ultrastructure, and cuticular hydrocarbons profiles in eusocial and solitary bee species displaying heterochronic adult cuticle maturation.

open access: yesPLoS ONE, 2019
Differences in the timing of exoskeleton melanization and sclerotization are evident when comparing eusocial and solitary bees. This cuticular maturation heterochrony may be associated with life style, considering that eusocial bees remain protected ...
Tiago Falcon   +14 more
doaj   +1 more source

A nesting aggregation of the solitary bee Megachile atrata (Hymenoptera: Megachilidae) in the Philippines [PDF]

open access: yes, 2017
A nesting aggregation of Megachile (Creightonella) atrata Smith in the Philippines comprised almost 300 active nests.  The bees in rapid flight resemble the hornet Vespa tropica Linnaeus. The nest structure is similar to that reported for M.
Starr, Christopher K.
core   +2 more sources

Rising Strong: Cultivating Resilience in Edible City Entrepreneurship. Insights Into the Landscape of Urban Food Initiatives

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT In response to growing global challenges, this study explores how social entrepreneurship within the Edible City movement contributes to building resilient, sustainable, and equitable urban food systems. Drawing on semistructured interviews with over 70 stakeholders across five cities—Berlin, Andernach, Oslo, Rotterdam, and Havana—we ...
Ina Säumel   +6 more
wiley   +1 more source

Pollinator activity and flowering in agricultural weeds in Sweden

open access: yesEcology and Evolution
The extent to which weeds in arable land are useful to pollinators depends in part on the temporal pattern of flowering and insect flight activity. We compiled citizen science data on 54 bees and hoverflies typical of agricultural areas in southern ...
Per Milberg   +4 more
doaj   +1 more source

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

Pollinator Visitation Alters Cranberry Flower Fungal Communities in Wisconsin Cranberry Agroecosystems. [PDF]

open access: yesEnviron Microbiol Rep
A two‐year study reveals shared fungal communities between cranberry flowers and insect visitors, including Apis mellifera, Bombus species, solitary bees and hover flies. Greater fungal richness was present in pollinator‐accessible flowers compared to those that were tented.
Mezera CC, Steffan S, Holland LA.
europepmc   +2 more sources

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