Navigation Links
Some butterflies travel farther, reproduce faster

siologist and chemist. The study built on the work of Hanski who has recorded changes in the butterfly population on the islands for years.

It's in the genes

The fritillary live in distinct patches -- rocky outcroppings containing plants that serve as food and provide a hospitable home for the butterfly larvae to spend the winter. There are about 4,000 such patches on the Ã…lands, with about 500 patches occupied in a given season, Hanski has found. Some of the patches are farther apart than most individual butterflies can migrate, Fescemyer said.

Each year, new populations begin in some patches while others go extinct because of parasites, disease and the disappearance of plants that serve as food and shelter. Populations established on an isolated patch may require a good flier to reach a new patch to start a new population.

Flight capability varies quite a lot among females, who carry the eggs and establish new populations. For those reasons, natural selection on flight and reproductive capability acts primarily on the females.

Travelers reproduce more quickly

This study examined whether there is a difference in physiology between the females in the newly established populations and females in the older populations. The researchers found out there are.

The study looked at seven patches which had not been colonized the year before and six old populations, Fescemyer said. Hanski's group collected larvae from the seven new patches and reared them on host plants in the laboratory, where they moved to the pupae stage.

Fescemyer recorded when the pupa emerged to become butterflies and periodically collected individual butterflies to determine the number of mature eggs they carried.

"The females from the new patches develop very quickly," Fescemyer said. They developed mature eggs sooner (three days after emerging from the pupa) which could enable them to mate and lay eggs soone
'"/>

Source:American Physiological Society


Page: 1 2 3

Related biology news :

1. How monarch butterflies are wired for navigation
2. Expanding forests darken the outlook for butterflies, study shows
3. Female butterflies go for sparkle -- not size -- when choosing to mate
4. Where have all the butterflies gone?
5. Male-killing bacteria makes female butterflies more promiscuous
6. Experiments provide proof of how traveling in groups protects insects
7. Experiments provide proof of how traveling in groups protects insects
8. Norovirus found to cause travelers diarrhea
9. Researchers develop new method for studying mental time travel
10. Drug resistance may travel same path as quorum sensing
11. Air travel and pandemic flu
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Some butterflies travel farther reproduce faster

(Date:7/11/2014)... Research awarded Michael F. Holick, PhD, MD, of Boston ... V. Avioli Award. Holick, a professor of medicine, physiology ... the understanding of vitamin D and its role in ... of the American Society for Bone and Mineral Research ... research. It is named for ASBMR,s first president and ...
(Date:7/11/2014)... USC Stem Cell scientists have set a "mouse TRAP" ... described by a recent study published in the ... line uses a technique called TRAP to extract cellular ... , Invented by scientists at the Rockefeller Institute for ... tag to the protein-making machinery, or ribosomes, of the ...
(Date:7/11/2014)... Shenzhen, China Researchers from Salk Institute for Biological ... time evaluated the safety and reliability of the ... a new method, TALEN-HDAdV, which could significantly increased ... (hiPSC). This study published online in Cell ... for stem cell-based gene therapy. , The combination ...
Breaking Biology News(10 mins):BUSM's Michael F. Holick receives American Society for Bone and Mineral Research award 2A new genome editing method brings the possibility of gene therapies closer to reality 2
... JUPITER, FL January 25, 2011 Embargoed by ... Scientists from the Florida campus of The Scripps Research ... an individual,s vulnerability to the addictive properties of nicotine. The ... study appeared January 30, 2011, in an advance, online issue ...
... of antibiotics that followed it, streptococcus bacteria have remained ... reason: the superb evolutionary skills of this pathogen to ... published this week in Science , scientists from ... genome sequencing to identify the precise steps in the ...
... of the journal Science , UC Davis expert ... also true, and explores what that might mean to ... vice-versa. A classic example of ecology influencing evolution ... In this species, larger beaks dominated the population after ...
Cached Biology News:Scripps Research scientists reveal key mechanism governing nicotine addiction 2Scripps Research scientists reveal key mechanism governing nicotine addiction 3New research traces evolutionary path of multidrug-resistant strep bacteria 2New research traces evolutionary path of multidrug-resistant strep bacteria 3
(Date:7/10/2014)... June 17, 2014 Using microscopic polymer light ... gases, researchers at MIT,s Quantum Photonics Laboratory have ... in the parts-per-billion range. Optical sensors are ideal ... high signal-to-noise ratio, compact, lightweight nature, and immunity ... sensors had been developed before, the MIT team ...
(Date:7/10/2014)... disorders has been extremely challenging because there are many ... to cause disease. Now investigators reporting in the July ... Stem Cell describe a strategy that may help ... risk factors or environmental exposures to affect the development ... variant that may predispose individuals to schizophrenia. , ...
(Date:7/10/2014)... The lithium-ion batteries that power our laptops and electric ... a single charge with the help of a sponge-like ... to replace the graphite traditionally used in one of ... times the energy storage capacity of graphite. A paper ... was published today in Nature Communications . , ...
(Date:7/10/2014)... have shelled out for crude 3-D glasses, polarized ... experience. These basic devices, used to trick the ... soon be rendered obsolete with the introduction of ... researchers. , TAU doctoral students Yuval Yifat, Michal ... holography based on nanoantennas that could be used ...
Breaking Biology Technology:Swell new sensors 2New strategy could uncover genes at the root of psychiatric illnesses 2Silicon sponge improves lithium-ion battery performance 2Silicon sponge improves lithium-ion battery performance 3Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3
... 0 clinical testing has been gaining acceptance and ... development process in the years to come. The ... and technology dependence is also expected to result ... in this sector.(Logo: http://www.newscom.com/cgi-bin/prnh/20081117/FSLOGO )"There is every ...
... Health Care Business Conference, an MBA-student organized event, will be held ... distinguished speakers and panelists from Healthcare Services, Investment, Pharma, Biotech, and ... ... 10, 2009 -- The 2009 Wharton Health Care Business Conference ...
... Feb. 10 DSM Biologics and Crucell N.V. (Euronext, ... today that they have entered into an agreement with ... Vendor Network. Under the terms of the agreement, Bioceros ... licensees of the PER.C6(R) cell line located in the ...
Cached Biology Technology:Frost & Sullivan Sees Microdosing as Compelling Advantage for Big Pharma 2Frost & Sullivan Sees Microdosing as Compelling Advantage for Big Pharma 314th Annual Wharton Health Care Business Conference to Feature CEOs from WebMD, McKesson, Humana and Given Imaging 2DSM and Crucell Sign Agreement with Bioceros to Serve as Pre-Approved Cell Line Generation Partner of PER.C6(R) Cell Line Proteins 2DSM and Crucell Sign Agreement with Bioceros to Serve as Pre-Approved Cell Line Generation Partner of PER.C6(R) Cell Line Proteins 3DSM and Crucell Sign Agreement with Bioceros to Serve as Pre-Approved Cell Line Generation Partner of PER.C6(R) Cell Line Proteins 4DSM and Crucell Sign Agreement with Bioceros to Serve as Pre-Approved Cell Line Generation Partner of PER.C6(R) Cell Line Proteins 5
...
Histone H2A Polyclonal Antibody 100 ug affinity purified rabbit polyclonal antibody. Detects ~14 kDa Histone H2A. It does not cross-react with other Histones. Reacts with human/mouse/rat. Performs w...
Contains L-glutamine...
... PhosphatidylEthanolamine-Binding Protein (PEBP) does not share ... inhibitors. PEBP is expressed in ... ovary, muscle, and stomach. One ... is exerting inhibitory activity against several ...
Biology Products: