Results 81 to 90 of about 56,456 (301)
Seasonality of floral resources in relation to bee activity in agroecosystems
Ecology and Evolution, 2021 The contribution of wild insects to crop pollination is becoming increasingly important as global demand for crops dependent on animal pollination increases.
Jessica M. Guezen, Jessica R. K. Forrest
doaj +1 more source
Pervasiveness of Parasites in Pollinators [PDF]
PLoS ONE, 2012 Many pollinator populations are declining, with large economic and ecological implications. Parasites are known to be an important factor in the some of the population declines of honey bees and bumblebees, but little is known about the parasites afflicting most other pollinators, or the extent of interspecific transmission or vectoring of parasites ...
Sophie E F Evison +8 more
openaire +4 more sources
American Journal of Agricultural Economics, EarlyView.Abstract While multiple factors explain low adoption rates of improved varieties by small‐scale farmers in sub‐Saharan Africa, a key supply‐side constraint is the limited availability of seed embodying new traits in the volume, quality, price, and timeliness required by farmers. This constraint is partly attributable to classical failures in the market
Dawit Mekonnen +5 more
wiley +1 more source
Climate change and perennial crop production: Evidence of yield impact and adaptation in California
American Journal of Agricultural Economics, EarlyView.Abstract Perennial crops are economically important. They contribute to food security, providing essential nutrients that are often lacking in annual crops, and provide additional environmental benefits compared with annual crops. Despite their importance, empirical research on the impacts of climate change and adaptation on perennial crops remains ...
Yuanyuan Wen +2 more
wiley +1 more source
The Pollinating Network of Pollinators and the Service Value of Pollination in Hanzhong City, China
InsectsPollinating insects are the most important pollinators in nature; they pollinate vegetables, fruits, oil crops, and wild plants, so that crop yields can be increased, wild plants can live and reproduce, and human food security and ecosystem stability are maintained. To identify the pollination network of plants–insects and the pollination service value
Xuemei Chang +5 more
openaire +2 more sources
Income sharing for common pool resources with uncertain productivity
American Journal of Agricultural Economics, EarlyView.Abstract We address the interconnected issues of externalities in the use of a natural common‐pool resource system and adverse effects of environmental uncertainty on risk‐averse resource users. We set up a simple analytical model and derive conditions such that insurance by means of an income sharing mechanism mitigates externalities and hence ...
Claudia Kelsall +2 more
wiley +1 more source
Care for bees: for many reasons and in many ways [PDF]
, 2010 Pollinating insects are in decline, probably worldwide. This may imply a pollination crisis, for (food) crops as well as wild plants. Eventually this decline might result in great economic losses, a human food crisis and loss of natural biodiversity ...
Blacquiere, T.
core
Wild pollinators in arable habitats: trends, threats and opportunities
, 2020 The dramatic declines in pollinator (social and solitary bees, wasps, flies, beetles, butterflies, and moths) abundance and diversity observed in Europe and globally in recent decades have generated widespread scientific and societal concern.
Storkey, J. +13 more
core +1 more source
High‐elevation endemic plants predicted to lose habitat from changing climate in Washington State
American Journal of Botany, EarlyView.Abstract Premise High‐elevation plants face unique challenges from potential climate change impacts that will likely require upslope migration into increasingly smaller suitable habitat. This situation is particularly acute for endemic species that by definition occupy small geographic ranges.
Nicholas L. Gjording +4 more
wiley +1 more source