Prescribed burning is a common management technique in tallgrass prairie remnants, but there have been few empirical studies that directly examine impacts on the nesting preferences and habitat of ground-nesting bees. We used emergence traps remnant prairies western Minnesota, USA to determine whether bees prefer nest burned or unburned prairies. estimated total number nests made by actively pa...

Hoplitis astragali sp. nov. , a member of the H. monstrabilis species group, and dagestanica adunca are described. The former is known from Dagestan in Russia, Azerbaijan, Turkmenistan, latter only Dagestan. Nests Females this excavated burrows vertical clay cliff, but sometimes chose horizontal surface for nest excavation, particularly at entrance old Xylocopa olivieri (Apidae). were either su...

The ability to predict the responses of ecological communities and individual species to human-induced environmental change remains a key issue for ecologists and conservation managers alike. Responses are often variable among species within groups making general predictions difficult. One option is to include ecological trait information that might help to disentangle patterns of response and ...

migratory birds are most often responsible for the distribution of avian diseases in different areas and serve as hosts for most parasites, including ectoparasites. the aim of the present study was to record the distribution range of a mesostigmatic mite species, dermanyssus gallinae in barn swallow nests in urmia suburb, north west of iran. the samples were collected from 161 bird nests in 44 ...

The Asian giant honeybees (Apis dorsata) build single-comb nests in the open, which makes this species particularly susceptible to environmental strains. Long-term infrared (IR) records documented cool nest regions (CNR) at the bee curtain (nCNR = 207, nnests > 20) distinguished by marked negative gradients (ΔTCNR/d < -3°C / 5 cm) at their margins. CNRs develop and recede within minutes, predom...

Abstract Bee development is determined by the quantity and quality of food resources available in environment that can be used bees only to a certain extent. Therefore, this study aimed evaluate, means changes hive weight, amount collected honey various landscapes, relation meteorological conditions, landscape, forest structure. The monitored colonies ( n = 104) were placed on electronic beehiv...

The bee genus Pseudoanthidium is represented by nine species in Europe. Of these species, nanum the most widespread, occurs mainly xerothermic open habitats and creates nests various cavity types. In this study, we provide information on nest structure of reed stalks oak galls about its parasitic species. We first report P. as a host Xylophrurus augustus (Ichneumonidae). biology much rarer rela...

Honeybees, like humans and most other vertebrates, are colour-blind in dim light. Bees are primarily day-active and have apposition compound eyes, the typical eye design of diurnal insects. Most bees are trichromats with photoreceptors sensitive in the UV, blue and green [1]. While their diurnal colour vision was established almost 100 years ago, honeybees are known to be colour-blind in moonli...