Results 51 to 60 of about 1,193 (182)
Effects of flower patch additions and urbanisation on cavity‐nesting bees and wasps
Urbanisation can negatively affect cavity‐nesting bees and wasps, yet common conservation interventions such as flower patches and artificial nests lack strong empirical support. In a 2‐year experiment across urban allotments spanning an urbanisation gradient, we found no effect of added floral resources on nest uptake, while hymenopteran abundance ...
Emilie E. Ellis +2 more
wiley +1 more source
Amostragem de vespas solitárias em diferentes dispositivos artificiais em policultivos, Alagoas – AL
RESUMO: As vespas são insetos reguladores naturais de diversas pragas em cultivos agrícolas, possuindo papel biológico como importantes bioindicadores da qualidade do ambiente.
Vanessa da Silva Salustiano +5 more
doaj +1 more source
A New Moustache Wasp in Dominican Amber, with an Account of Apoid Wasp Evolution Emphasizing Crabroninae (Hymenoptera: Crabronidae) [PDF]
A new, extinct species of the wasp genus Lindenius (Crabroninae: Crabronini: Crabronina) is described and figured from two exquisitely preserved specimens discovered in Early Miocene Dominican amber.
Bennett, Daniel J., Engel, Michael S.
core +3 more sources
Body size determines mobility and fitness across taxa in various ways. Yet, drivers of body size in higher trophic invertebrates, especially parasitoids, including intra‐ and interspecific variations, are poorly understood due to complex interactions between parasitoid behaviour, the environment and their hosts.
Riko Fardiansah +4 more
wiley +1 more source
Major benefits of guarding behavior in subsocial bees: implications for social evolution
Increased survival of the offspring is the beneficial result of nest guarding strategy in subsocial bees. Experimental female removal had a significant negative effect on the offspring survival in two studied species. These nests frequently failed due to the attacks of natural enemies (ants, chalcidoid wasps, and other competing bees).
Michael Mikát +2 more
wiley +1 more source
The influence of habitat properties on sex determination in cavity-nesting Hymenoptera
Unravelling the relationships between insect population dynamics and habitat properties is often complex. Established theoretical concepts, which predict an influence of available resources on sex determination, have often not been tested with ...
Katharina Wittmann +2 more
doaj +1 more source
Recent trends in UK insects that inhabit early successional stages of ecosystems [PDF]
Improved recording of less popular groups, combined with new statistical approaches that compensate for datasets that were hitherto too patchy for quantitative analysis, now make it possible to compare recent trends in the status of UK invertebrates ...
August, Tom A. +5 more
core +1 more source
Cavity‐nesting bees and wasps and their associated parasitoids rely on forest structural elements such as deadwood. Host–parasitoid interaction networks can reveal how these forest structures can support this important ecosystem function. Here, we sample cavity‐nesting bee wasps and their parasitoids from 127 forest research sites, along with gradients
Nolan J. Rappa +5 more
wiley +1 more source
Primer registro de Trypoxylon mexicanum para la Hispaniola,Antillas Mayores (Hymenoptera: Apoidea: Crabronidae) [PDF]
Trypoxylon (Trypargilum) mexicanum (Hymenoptera: Crabronidae) pertenece al grupo albitarse, el cual incluye a las especies mayores del género. Su distribución nativa abarca América Central, desde México hasta Panamá.
Genaro, Julio A.
core
Differences in species responses with regard to their trophic level, food and habitat specialization, and to habitat loss from local to landscape scales are poorly understood. Using cavity‐nesting communities of bees, wasps and their parasitoids on calcareous grasslands as a model system, we found that species from higher trophic levels experienced ...
Felix Klaus, Teja Tscharntke, Ingo Grass
wiley +1 more source

