Insects swear on a mix of floral resources for survival . Populations of bee , butterfly , and flies are currently quickly decrease due to the loss of flower - rich meadows . In gild to cover with the widespread loss of fauna , the European Union supports “ greening ” criterion , for example , the creation of flower strips .
A group of scientists from the University of Munich , led by Prof. Susanne S. Renner , has conducted the first quantitative assessment of the fastness and distance over which urban flower cartoon strip attract barbarian bees , and publish the results of the bailiwick in the clear - access Journal of Hymenoptera Research .
Flower strips are human being - made patches of flowering plants that put up resources for flower - visiting insects and insect- and seed - feed birds . Previous experiments have proved their preservation time value for enhancing biodiversity in agricultural landscapes .
The success of efflorescence flight strip in asseverate populations of solitary bee depends on the floristic typography , distance from suitable nesting sites , and distance from other habitat maintain stable population of bees . To study the attraction of the efflorescence strips in urban landscape painting , the scientists used an experimental set - up of nine 1,000 sq . meters flower striptease latterly established in Munich by a local chick conservation agency .
“ We identified and counted the bees chitchat flower on each landing strip and then interrelate these numbers to the full diversity of Munich ’s bee fauna and to the variety at different distances from the flight strip . Our expectation was that newly set flower strips would attract a small subset of mostly generalist , non - threatened coinage and that oligolectic species ( specie using pollen from a taxonomically restricted lot of flora ) would be underrepresented compared to the city ’s overall metal money puddle , ” shared Prof. Susanne S. Renner .
Bees require prison term to chance upon new habitats , but the analysis showed that the city ’s wild bee handle to do that in just one class so that the one - class - old flower strips attracted one - third of the 232 species register in Munich between 1997 and 2017 .
Surprisingly , the flower strips attracted a random subset of Munich ’s bee species in terms of pollen specialty . At the same metre , as bear , the first - year flower - slip visitors mostly belonged to common , non - threatened species .
The results of the subject field support that flower slip planting in cities provide extra bread and butter for pollinators and act as an effective preservation beat . The authors therefore powerfully recommend the flower strip networks implemented in the upcoming Common Agricultural Policy ( CAP ) reform in the European Union .
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