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On the Trails: Bumblebees

...such as color and shape, and respond to the level of food reward (nectar or pollen) offered by the flower: flowers...the flower in a certain way that gives access to the food reward and achieves deposition of pollen and transport of pollen...
'To put it bluntly ...'

...400-pound predator frequenting our parking lot every night for over two weeks, I would like to point out that the food reward was never removed, and with easy access to an assured source of food, the bear was only doing what came naturally...
Orchid variations

...smelling sweet, as if it offers nectar, but it has none. Visiting bees learn quickly that these flowers offer no food reward, so successful pollination depends on a supply of inexperienced bees. (Calypsos, and perhaps other orchids, should...
The difference between a 'habituated' bear and a 'food-conditioned' bear

...places people live, or camp, or travel because it hopes to get some food or garbage from them. The bear receives a food reward each time it approaches people or their space, and so it becomes conditioned to expect something from those garbage...
Moss sex, oh yes

...damp moss. The animals are attracted to the sperm- and egg-producing organs by some chemical signal or potential food reward, such as sugars, fatty acids, or mucilage (much as insects are attracted to nectar in flowers). Experiments have...
Officials monitor 3 bears

...and livestock inadequately protected with electric fence. "This case clearly shows how once a bear has received a food reward, they will continue to go house to house in search of a similar meal," Selinger said. The bears first appeared in...


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