In Natura 2000 areas, the trait similarity of rare wild bee species was significantly increased, indicating a potential elevatedcompetition between wild bees and honeybees for floral resources. This study highlights the need for spatial planning to balance urban beekeeping and wild bee conservation, re...
The approach is illustrated by application to the problem of finding the number of species in a data set of Australasian tetragonula bees. Requirements here include two new statistics formalising the largest within-cluster gap and cluster separation. Due to the typical nature of expert knowledge, ...
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A bumblebee lands on the flowers of a white sloe bush.Soeren Stache/picture alliance via Getty Images As trees and flowers blossom in spring, bees emerge from their winter nests and burrows. For many species it'stime to mate, and some will start new solitary nests or colonies. ...
It’s lovely to think it’s easy for your pets, and livestock, to learn to coexist with your bees. And, it’s true, nature usually has a way of sorting out the impending drama between species. But, the most significant problems arise when pets cannot escape a bee attack. ...
Here he reaches back into deep time to explain why Eurasia ended up with so many more domesticable species compared to the Americas, and why the orientation of the continents made the spread of agriculture easy in Eurasia (which is oriented East-West), but hard in the Americas (which is ...
故答案为Inrecenttimes,beepopulationshavebeendecliningduetopesticides,parasites,diseaseandhabitatloss.(3)推理判断题。根据最后一段GillPerkinssays,"Theyarebeginningtorealisehowtheirmentalhealthandwellbeingissupportedbynature—particularlybybumblebees,whicharesoiconicandbeautifulandbuzzy."(吉尔•帕金斯说:"他们开始...
In reality, it's anything but nuts. Loons are water birds, diving for their meals in spacious lakes and using the water as a runway to take flight. There are five loon species in the world, with the common loon the most widespread in North America [source: Upper Midwest Environmental ...
With so many pollinating species facing an ecological tipping point, those non-profits and the others listed here need your donations to educate the public. Among the teaching programs offered by Pollinator Partnership: theBee Smart School Garden Kit, an online planting guide calledBee Friendl...
Looking beyond the honeybee, there are thousands of fascinating native bees to explore and protect.Most of these native bees live in nests in the groundor in leaves and sticks, rather than in hives. Over 3,600 different bee species exist across the US, and they each have unique, critical ...