Tag Archive | "invasive species"

Invasive pythons in Florida now stealing bird eggs straight from the nest

Invasive pythons in Florida now stealing bird eggs straight from the nest

The snakes are not only eating the area’s birds, but also the birds’ eggs straight from the nest. [...more]

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Video: Meet our Scientist–Mark Torchin tracks invasive marine species and their parasites in Panama

Video: Meet our Scientist–Mark Torchin tracks invasive marine species and their parasites in Panama

Mark Torchin, a marine ecologist at the Smithsonian Tropical Research Institute (STRI) in Panama, talks about how he studies the parasites of invasive marine animals such as snails. Much of his research focuses on biological invasions and the dynamics between the host, the parasites and the surrounding ecosystem. [...more]

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Cold spells spell trouble for warm-weather invasives

Cold spells spell trouble for warm-weather invasives

In a laboratory at the Smithsonian Environmental Research Center in Edgewater, Md., scientist João Canning Clode and colleagues tested the cold-water tolerances of a number of invasive green porcelain crabs. [...more]

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New genetic evidence confirms coyote migration route to Virginia and hybridization with wolves

New genetic evidence confirms coyote migration route to Virginia and hybridization with wolves

In a new study researchers from the Smithsonian Conservation Biology Institute’s Center for Conservation and Evolutionary Genetics used DNA from coyote scat (feces) to trace the route that led some of the animals to colonize in Northern Virginia. [...more]

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Location matters: For invasive aquatic species, it’s better to start upstream

Location matters: For invasive aquatic species, it’s better to start upstream

These green crabs have been doing a number on native shellfish. They eat a lot of clams. And they're a very cosmopolitan species—they've now spread all over, to places as far afield as the West Coast of the U.S. and South Africa. [...more]

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Hitchhiking snails fly from ocean to ocean

Hitchhiking snails fly from ocean to ocean

Just as people use airplanes to fly overseas, marine snails may use birds to fly over land,” said Mark Torchin, staff scientist at the Smithsonian. [...more]

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Alaska’s cold waters no barrier to invasive marine species, scientists say

Alaska’s cold waters no barrier to invasive marine species, scientists say

Alaska’s pristine coastline is ripe for an influx of invasive marine species such as the European green crab and the rough periwinkle (an Atlantic sea snail) warns a new study by a team of scientists from the Smithsonian Environmental Research Center. [...more]

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Smithsonian team finds northern snakehead fish in Maryland’s Rhode River

Smithsonian team finds northern snakehead fish in Maryland’s Rhode River

This is the first report of this invasive species in this area, and may indicate a recent range expansion of the snakehead population. [...more]

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Scientists from the Smithsonian Migratory Bird Center have found that fledgling catbirds living in the suburbs are extremely vulnerable. Almost 80 percent are killed by predators before they reach adulthood. Nearly half of the deaths are connected to domestic cats. The team studied catbird nests in 3 suburban neighborhoods in Maryland: Spring Park, Opal Daniels Park, and Bethesda. Learn more about this 2011 study by clicking here. (Catbird photo by Gerhard Hofmann)

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