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Jan
12
2010
Antisocial fish are more likely to invade new environments
Order viagra free samples, What makes an animal inclined to stake out new territory, leading biological invasions that can harm native wildlife. Buy cheap viagra free samples online, A study in Proceedings of the Royal Society B suggests that personality can play a role.
A team administered personality tests to mosquitofish (Gambusia affinis), a species currently ranked as one of the worst invaders in the world, viagra free samples pedido en línea. Ohio OH , Each fish was scored on its sociability, measured by how long it spent swimming close to a group of fellow fish in an aquarium, viagra free samples prices. Kjøpe viagra free samples, Researchers also scored traits such as boldness, or how quickly the fish emerged from a refuge to explore a new environment.
After assessing each fish’s personality, viagra free samples cheap, New Hampshire NH N.H. , the researchers placed groups of fish into one end of an artificial stream containing five connected pools. Individuals that had scored low on sociability swam farther, comprar en línea viagra free samples, Hawaii HI , often reaching the fourth or fifth pools. In contrast, most other fish remained in the first pool, the team found.
A mosquitofish’s personality therefore may influence whether it will lead an invasion, the researchers say. And having multiple personality types within a species could allow an invasion to spread faster, order viagra free samples. Social individuals might eventually follow the leaders to their new territory, buy viagra free samples online, South Dakota SD , increasing the population density and prompting the loners to strike out on their own again. – Roberta Kwok
Source: Cote, ordering viagra free samples from canada, Buy viagra free samples no rx, J. et al (2010), viagra free samples en ligne afin. αγοράζουν φτηνά viagra free samples, Personality traits and dispersal tendency in the invasive mosquitofish (Gambusia affinis) Proceedings of the Royal Society B DOI: 10.1098/rspb.2009.2128
Image © wbritten, iStockPhoto.com
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I can’t find the paper in the Journal web.
May you include a link to the paper, please?
(Even PDFs of Proceedings of the Royal are for free this year)
Hi Carlos,
I’ve added a link to the citation above; it wasn’t yet available on the journal’s website when I posted the article yesterday.
Best,
Roberta
Thanks a lot!
-C