Sentences with phrase «freshwater snails»

Timeframes are identified through radiocarbon dating of freshwater snail shells and other organic soil matter.

«The warming surface waters cause large parts of the lake's floor to lose oxygen, killing off bottom - dwelling animals such as freshwater snails,» Cohen said.

This project has reintroduced prawns near several villages to evaluate their efficacy in controlling freshwater snails.

This became obvious when the researchers noticed that the mounds were littered with the shells of dead freshwater snails.

A team of biologists led by the University of Iowa further scrutinized the hypothesis by testing whether female New Zealand freshwater snails that reproduce sexually would be more resilient to outside perils than females that produce offspring by themselves.

One kiddie pool aquarium + one very dedicated scientist + a couple decades of work = one freshwater snail species that otherwise would probably be extinct.

The diversity of flowering plants plummets, and entire populations of freshwater snails and clams vanish.

In a study involving multiple generations of a freshwater snail in New Zealand, researchers at the University of Iowa found that polyploidy appears to be neither an asset nor a drawback for females bearing offspring without the help of a male.

The fishhooks, all carved from shells, were found in Sakitari Cave, which was occupied seasonally by fishermen taking advantage of the downstream migrations of crabs and freshwater snails.

The worm spends part of its life in freshwater snails, which release larvae that can penetrate the skin of someone swimming, bathing, or washing clothes.

Capsaspora was originally discovered living inside a freshwater snail and has been used by Ruiz - Trillo's group to learn more about animal evolution.

The method was used to measure the breakdown of amino acids within shells of a freshwater snail found at the site (Nature, vol 438, p 1008).

Neiman and others in her field have been studying the freshwater snails for years, in large part because some females can bear offspring without males.

Schistosomiasis is transmitted via flatworms shed by the freshwater snails that serve as the parasite's non-human host.

Scientists have characterized the genome of a freshwater snail that is instrumental in transmitting a parasitic worm to humans.

In the paper, the authors stressed that understanding the genetic makeup of these molluscs is important because many «freshwater snails are intermediate hosts for flatworm parasites and transmit infectious diseases» to humans and other animals.

Jannifer Black is a 47 yo mama to 2 divine daughters, 3 bunnies, 3 freshwater snails and 1 husband!

Those eggs may find their way into a freshwater snail, Oxytrema silicula, found only in coastal streams and rivers.

Freshwater snails and water fleas, important to the aquatic food chain, are also at risk.

For the last several decades, the scientist from North Carolina has dedicated himself to saving the freshwater snails from extinction, and he's done so virtually single - handedly with the help of a kiddie - pool aquarium.