Tag: "butterflies" at biology news
Poison dart frog mimics gain when birds learn to stay away
... naturalist Henry Bates first described mimicry in butterflies
over 100 years ago. His theory, known as Batesian mimicry, describes how edible species can gain protection from predators by looking like toxic species....
Butterflies lose body fat during metamorphosis
...oup of scientists from Oregon have discovered that butterflies
experience a great loss in body fat during metamor...penditure, Connor and his colleagues surmised that butterflies
experience a great loss in body fat during metamorphosis. Using the Blue Morpho butterfly from the ...
Environmental effects on genetic adaptation and population dynamics
...; The f and d alleles are most common--previously, butterflies
with either ff or fd genotype were seen to have a ...tegy for exploiting a small patch, from which many butterflies
risk drifting away rather quickly in their life. Females with d alleles mature later but also die la...
New discovery: Molecular variation in one gene affects the growth of natural populations
...ous studies on the Glanville fritillary and Colias butterflies
that the individuals' Pgi genotype affects their flight metabolic rate and reproductive performance. The present result proves that these differences between individuals also have repercussions at the population level. The role of Pgi is emphasised ...
Where have all the butterflies gone?
...6 is shaping up as the worst year for California's butterflies
in almost four decades, according to Art Shapiro, ...nd from last spring, when millions of painted lady butterflies
migrated through the Central Valley. But other species have seen steep declines in recent years and ...
Butterfly speciation event recreated
In a matter of months, butterflies
sporting the yellow and red wing color pattern of ...early signal to birds and other predators that the butterflies
are toxic. The wing pattern signalling system is so finely tuned that butterflies
with even slight d...
Butterfly farming to help save rain forest
...North Rupununi District is a rich source of exotic butterflies
that are sought after by many western butterfly farms and other institutions that exhibit collections of live butterflies. Each individual butterfly pupa that they can ship to one of these customers can be worth between 2 and 5 UK pounds. The creatio...
Liquid Jungle Lab environs -- home to five new species
...ng C.), birds (Belkys Jiménez and Karla Aparicio), butterflies
(Annette Aiello, Vicente Rodríguez Gracia, Vitor Osmar Becker and Olga of Greece), spiders and scorpions (Diomedes Quintero Arias), reptiles and amphibians (Victor Martínez Cortes and Abdiel Rodríguez) and mammals (Rafael Samudio and Jorge Pino). ...
ACS Weekly PressPac -- June 26, 2006
...t cellulose may mean paper airplanes that fly like butterflies
Ground-level ozone pollution impacts laboratory...t cellulose may mean paper airplanes that fly like butterflies
Macromolecules Old-fashioned paper airplanes may be just plane fun for kids, but the next genera...
BGSU biologist trying to crack microscopic code
...that "keeps the dogs out of the roses but lets the butterflies
through." A short distance separates the outer membrane and the rest of the organism. How the bacteria maintain their barrier when it's physically removed from the rest of the cell, and thus separated from its energy source, is where his interest l...
Have traits, will travel: Some butterflies travel farther, reproduce faster
...ical differences among female Glanville fritillary butterflies
that allows some to move away from their birth place and establish new colonies. These venturesome butterflies
are stronger fliers and reproduce more quickly compared to their less mobile female relatives. The ...
Insect population growth likely accelerated by warmer climate
... student. "Enhanced population growth rates for butterflies
might be a good thing, but enhanced growth rates for mosquito populations is much more dubious," said Frazier, who is lead author of the new research, published in the October edition of the journal The American Naturalist. Co-authors are Raymond ...
Food for flight
...opterists' Society. Every fall, masses of monarch butterflies
migrate across eastern North America to remote sit... quality and abundance of the flowering plants the butterflies
rely on for nectar. "The area was dominated by fire-maintained shortleaf pine forests until the ea...
Nevada scientist part of team that discovers hybrid speciation in butterflies in Sierra
...explained that it has been known that two types of butterflies
Lycaeides melissa and Lycaeides idas live in the...inct species. "Its interesting, because the alpine butterflies
have wings that look like the butterflies
from the eastern Sierra," Forister said. "But their mitoch...
Male-killing bacteria makes female butterflies more promiscuous
... smaller sperm packages. Unfortunately, the female butterflies
instinctively know that the packages are smaller a...tudy, said: "It's amazing that the numbers of male butterflies
can get so low and yet the population is still sustainable and stable. You don't need many male butt...
Some caterpillers just don't want to grow up
... international project on the ecology of Maculinea butterflies
has now brought together the CEH team with theoreticians from the universities of Wrzburg and Montpellier to investigate this problem. Together they have compiled various potential adaptive explanations for the evolution of such strategies into a gen...
Fruit fly gene research may shed light on human disease processes
...rickson, "fruit flies share the same life cycle as butterflies
they're just not as pretty."...
Why are there so many more species of insects? Because insects have been here longer
...rown show that many insect groups like beetles and butterflies
have fantastic numbers of species because these groups are so old. In contrast, less diverse groups, like mammals and birds, are evolutionarily younger. This is a surprisingly simple answer to a fundamental biological puzzle. They accumulated data fr...
Moths mimic sounds to survive
... protected. This is similar to the way birds avoid butterflies
that look like the bad-tasting Monarch. The two species of bats used were big brown bats and red bats. Barber raised the bats in the lab so behavior learned in the wild would not influence the results of the experiment. Barber said anecdotal o...
Greenland's ancient forests shed light on stability of ice sheet
... invertebrates related to beetles, flies, spiders, butterflies
and moths. The researchers believe that the samples date back to between 450,000 and 800,000 years ago. "We have shown for the first time that southern Greenland, which is currently hidden under more than 2km of ice, was once very different to the...
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