News tagged with nectar
Got nectar? To hawkmoths, humidity is a cue
(Phys.org) -- Humidity emanating from a flower's nectar stores tells a moth if the flower is worth a visit, research led by a UA entomologist has discovered.
May 30, 2012 |
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Commonly used pesticide turns honey bees into 'picky eaters'
Biologists at UC San Diego have discovered that a small dose of a commonly used crop pesticide turns honey bees into "picky eaters" and affects their ability to recruit their nestmates to otherwise good sources of food.
May 24, 2012 |
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Herbivory discovered in a spider
(PhysOrg.com) -- There are approximately 40,000 species of spiders in the world, all of which have been thought to be strict predators that feed on insects or other animals. Now, scientists have found that ...
Oct 12, 2009 |
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Drunk Bats Manage To Pass Sobriety Tests
(PhysOrg.com) -- New World Leaf-nosed bats (Chiroptera Phyllostomidae) are thriving in the tropical forests of Central and South America, even though their diets consist of more fruits and nectars than their ...
Feb 18, 2010 |
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Hummingbirds take no notice of flower color
Hummingbirds pay no attention to what colour a flower is when figuring out whether to raid it for nectar, the latest research suggests.
Mar 16, 2012 |
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Rainforest plant developed sonar dish to attract pollinating bats
The researchers discovered that a rainforest vine, pollinated by bats, has evolved dish-shaped leaves with such conspicuous echoes that nectar-feeding bats can find its flowers twice as fast by echolocation. The study is ...
Jul 28, 2011 |
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Bees, and similar nectar feeders, get sweeter juice with dipping tongues
A field of flowers may seem innocuous -- but for the birds and bees that depend on it for sustenance, that floral landscape can be a battlefield mined with predators and competitors. The more efficient a pollinator is in ...
Oct 12, 2011 |
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Wiggling and waggling: Study sheds light on amazing bee brain
(PhysOrg.com) -- Their brains are tiny - about the size of sesame seeds - and yet the behaviour of the humble honey bee is so advanced it has scientists scratching their heads in disbelief.
Dec 21, 2009 |
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How the hummingbird's tongue really works (w/ video)
(PhysOrg.com) -- Ornithologists first put forth the theory that hummingbirds took in nectar using capillary action (where liquid rises against gravity in a narrow tube) in 1833 and since then no one has questioned ...
May 03, 2011 |
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Bird pollinated plant mixes it up when it comes to sex
Across the western Cape of South Africa can be found small plants in the Iris family called Babiana. Flitting between them are sunbirds, small colourful birds like the African version of hummingbirds, that d ...
Sep 06, 2011 |
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Making a bee-line for the best rewards
Bumblebees use complex problem solving skills to minimise the energy they use when flying to collect food, according to new research from Queen Mary, University of London.
Aug 17, 2011 |
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How bumblebees tackle the traveling salesman problem
It is a mathematical puzzle which has vexed academics and travelling salesmen alike, but new research from Queen Mary, University of London's School of Biological and Chemical Sciences, reveals how bumblebees ...
Jun 29, 2011 |
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Honeybees not fooled by cheating flowers
(PhysOrg.com) -- Flowers that want to cheat pollinators by not paying them for their services shouldn’t try to lure them in using floral scents, scientists at Newcastle University have shown.
Apr 15, 2009 |
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Getting a grip: 'Velcro'-like structure helps bees stick to flowers (w/Videos)
When bees collect nectar, how do they hold onto the flower? Cambridge University scientists have shown that it is down to small cone-shaped cells on the petals that act like 'velcro' on the bees' feet.
May 14, 2009 |
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Team shows how the honey bee tolerates some synthetic pesticides
A new study reveals how enzymes in the honey bee gut detoxify pesticides commonly used to kill mites in the honey bee hive. This is the first study to tease out the precise molecular mechanisms that allow ...
Jul 20, 2011 |
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Nectar
Nectar is a sugar-rich liquid produced by plants. It is produced in glands called nectaries, either within the flowers, in which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists, which in turn provide anti-herbivore protection. Common nectar-consuming pollinators include bees, butterflies and moths, hummingbirds and bats.
Nectar is an ecologically important item, the sugar source for honey. It is also useful in agriculture and horticulture because the adult stages of some predatory insects feed on nectar.[examples needed]
Nectar secretion increases as the flower is visited by pollinators. After pollination, the nectar is frequently reabsorbed into the plant.
For more information about Nectar, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
