Results 81 to 90 of about 26,708 (242)
Pollinator activity and flowering in agricultural weeds in Sweden
Ecology and EvolutionThe 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
Combined stress from parasites, pesticides and lack of flowers drives bee declines [PDF]
, 2015 Bees are subject to numerous pressures in the modern world. The abundance and diversity of flowers has declined, bees are chronically exposed to cocktails of agrochemicals, and they are simultaneously exposed to novel parasites accidentally spread by ...
Botias Talamantes, Cristina +3 more
core +1 more source
People and Nature, EarlyView.Abstract The recovery of large carnivores in Europe raises issues related to sharing landscape with humans. Beyond technical solutions, it is widely recognized that social factors also contribute to shaping coexistence. In this context, scholars increasingly stress the need to adopt place‐based approaches by analysing how humans and wildlife interact ...
Alice Ouvrier +7 more
wiley +1 more source
Comparison of Cuticular Hydrocarbons in Three Populations of the Carpenter Bee “Ceratina calcarata” to help Understand their Role in Social Evolution [PDF]
, 2016 For the second summer in a row I analysed the composition of cuticular hydrocarbons (CHCs) on carpenter bees Ceratina calcarata, this time in populations from Missouri and Georgia as well as from New Hampshire.
Lombard, Sean
core +2 more sources
Trap-Nest Design for Small Trap-nesting Hymenoptera [PDF]
, 2017 (excerpt) Many solitary bees and wasps construct brood cells in pre-existing natural cavities such as beetle borings or in excavations of pithy stems and twigs like Sambucus and Juglans.
Fricke, John M
core +3 more sources
Comfort in the canopy: How urban treescapes affect human thermal comfort in a temperate climate
People and Nature, EarlyView.Abstract People living in urban centres are exposed to higher levels of heat stress than those living outside of these areas; this is intensified by the urban heat island effect. Heat stress is a concern for the more vulnerable members of society and can exacerbate many medical conditions; excessive heat increases morbidity and mortality rates.
James Parker +3 more
wiley +1 more source
Global Ecology and ConservationSolitary 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
Are Wild Bee Pollinator Populations Declining? [PDF]
, 2010 How climate change may affect insect pollinator populations in the Midwest.Environmental Change Institute UIUCAgroecology and Sustainable Agriculture Program UIUCunpublishednot peer ...
Cameron, Sydney A., Marlin, John C.
core
Differential effects of jasmonic acid treatment of Brassica nigra on the attraction of pollinators, parasitoids, and butterflies [PDF]
, 2008 Herbivore-induced plant defences influence the behaviour of herbivores as well as that of their natural enemies. Jasmonic acid is one of the key hormones involved in both these direct and indirect induced defences.
Bruinsma, M. +3 more
core +2 more sources
Pest Management Science, EarlyView.SYN‐A, a naturally derived synergist, inhibited key metabolic pathways associated with pyrethroid insecticide resistance in cabbage stem flea beetle (CSFB) and its parasitoid Microctonus brassicae. SYN‐A restored pyrethroid efficacy against resistant CSFB allowing up to 80% reduction in application rates.
Patricia A. Ortega‐Ramos +2 more
wiley +1 more source