Differences in frequencies of nesting bees were observed and recorded among sites and habitats through time. A Poisson regression indicated that all explanatory variables and their 1st order interactions were highly significant. There were significant differences among bee taxa, sites and years, and ...
All study sites consisted of habitats with naturally present shells and evidence of the natural presence of the study species of bees. In total, we recorded 15 nesting bee and wasp species and eight species of hymenopteran parasites in collected shells, one of which, the spider wasp Priocn...
While some bees are plentiful and widespread, others have been designated as rare. Or are very local in distribution. In 2013. Ian Beavis came across what has long been known as one of Britain's rarest species, the banded mining bee. An impressive species with white hairs on its face, th...
Pollinators are often keystone species, meaning that they are critical to an ecosystem. As landscapes are converted from wild to managed lands, many pollinators' habitats may be destroyed or fragmented." http://www.stlzoo.org/wildcareinstitute/doityourselfconservation/pollinators.htm ...
The comparison of Drosophila habitats by the physiological similarity of their yeast communities leads to several generalizations. Differences in the yeast... WT Starmer - 《Evolution》 被引量: 181发表: 1981年 MICROBIOLOGY OF POLLEN AND BEE BREAD : THE YEASTS SUMMARY One-hundred and thirteen yeast...
5. The results of this study clearly indicate that a close neighbourhood of suitable nesting and foraging habitats is crucial for population persistence and thus conservation of endangered solitary bee species. Introduction Bees, which are the world’s most important pollinators (Buchmann & Ascher 20...
We quantified reproductive activity and reproductive output of the polylectic solitary bee Osmia rufa during and after mass-flowering in landscapes with differing amounts of oilseed rape and semi-natural habitats. Across seasons, the number of produced offspring increased with availability of oilseed ...
All study sites consisted of habitats with naturally present shells and evidence of the natural presence of the study species of bees. In total, we recorded 15 nesting bee and wasp species and eight species of hymenopteran parasites in collected shells, one of which, the spider wasp Priocn...
We aimed at teasing apart how foraging resources in the landscape through the nesting season affected nesting and reproduction of a solitary bee in a farmland region. We investigated how availability of floral resources and potentially resource-rich habitats surrounding nests affected nest provisioning ...
Flowering resources and potential nesting habitats were mapped. The contribution of cherry trees floral resources was estimated by flower counts. Lonsdorf equations were used to assess the pollination service potential and were modelled at landscape scale for three scenarios: (A) agroforestry systems ...