Tag: "hummingbirds" at biology news
World's oldest modern hummingbirds described in Science
...ay Germany more than 30 million year ago. Although hummingbirds
are currently restricted to the Americas, their lo...museum in Frankfurt, Germany. The extinct European hummingbirds
were endowed with long, nectar-sucking beaks and wings designed for feeding while hovering, Mayr exp...
Major mutations, not many small changes, might lead way to new species
...rom pink beloved by bees but virtually ignored by hummingbirds
to a hummer-attractive yellow-orange. Researcher...eyflowers that are attractive to and pollinated by hummingbirds
and separate species of monkeyflowers that are pollinated by bees. The color change is the result, ...
Research sheds new light on evolution
...ic way to see if it would attract new pollinators hummingbirds
instead of bees or vice versa. By moving a small p...ee-pollinated M. lewisii were regularly visited by hummingbirds
but shunned by bees. "Also, the pink flowers of the previously hummingbird-pollinated M. cardinalis ...
Birds and humans have similar 'shopping' habits
...y of Lethbridge, Canada, repeated an experiment on hummingbirds
originally carried out by marketing experts on hum...tained in the flower. Under normal circumstances, hummingbirds
prefer flowers containing sweeter or larger volumes of nectar, as this provides them with more energ...
Invariant properties in coevolutionary networks of plant-animal interactions
...erse tropical rainforest. Many insects, bats, and hummingbirds
pollinate flowers and frugivorous vertebrates- like toucans or monkeys- disperse plant seeds; the plants in turn provide key resources for the animals in a complex web of mutually beneficial interactions. The bulk of species have few interactions but...
UC Davis science, engineering and technology newstips -- March
...du . HUMMINGBIRDS AVOID NECTAR-ROBBED FLOWERS When hummingbirds
forage for nectar in the mountains of Colorado, th...ity of California, Davis. Broad-tailed and rufous hummingbirds
feed on nectar from the long red flowers of scarlet gilia (Ipomopsis aggregata). The birds play an i...
Hummingbird studies raise questions about birdsong evolution
... three orders of birds thesongbirds, parrots and hummingbirds
have the ability to learn songs from their adult...lutionary distance, the new researchindicates that hummingbirds
use the same seven structures in the brain that parrots and songbirdsuse when they are singing their...
When is a pollinator not a pollinator? Tales from an insect crime scene...
...bees, and their larceny will prevent the sprightly hummingbirds
frompollinating the gilia. Rebecca E. Irwin and Al...s none left forother winged creatures, such as the hummingbirds
which migrate through theregion. This larceny also fails to pollinate the plant, a process that wou...
Does Mountain Living Slow Rate Of Molecular Evolution?
A study of hummingbirds
living high in the Andes ...d the DNA of hummingbirds
living at a variety of elevations, from sea level to the equat...