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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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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Flying jewels spell death for baby spiders
Spider flies are a rarely collected group of insects. Adults are considered important pollinators of flowers, while larvae live as internal parasitoids of juvenile spiders. Eight genera are recorded in Aust ...
Mar 02, 2012 |
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Study of flower petals shows evolution at the cellular level
A new study of flower petals shows evolution in action, and contradicts more that 60 years of scientific thought.
Nov 17, 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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Barnard professor explores the rich, sweet history of milk
Throughout history, milk has been a symbol of motherhood and fertility, but also prosperity, health and strength. In Hindu mythology a churning ocean of milk releases the nectar of immortality. Statues of the Egyptian ...
Other Sciences / Social Sciences
Sep 23, 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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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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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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How flowers use a touch of bling to woo the bees
(PhysOrg.com) -- Beetles use it, birds use it. Plants use it too. Iridescence is the shimmery colour effect that makes things eye-catching.
Jul 04, 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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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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Toxin-laden nectar poses problems for honeybees
(PhysOrg.com) -- Honeybees can learn to avoid nectar containing natural plant toxins but will eat it when there is no alternative, scientists at Newcastle University have found.
Dec 21, 2010 |
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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.
