Tag: biology and ecology


Holberton: Birds of a feather don’t always migrate together

The half-ounce songbirds that fly 1,800 miles nonstop over the Atlantic Ocean to winter in South America haven’t had a lot to chirp about lately. The number of Blackpoll warblers (Setophaga striata) documented on the move through migration monitoring sites in the Gulf of Maine region has declined dramatically at some locations over the last […]

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UMaine graduate student finds after last mass extinction, tiny fish ruled the sea

Andrew Galimberti, an entomology graduate student at the University of Maine, was part of a research team that discovered that bigger isn’t necessarily better for a fish during an extinction event. Researchers from the University of Pennsylvania and UMaine found that for at least 40 million years following the last massive extinction, small, fast-reproducing fish […]

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mosquito fish

Female invaders are ecologically stronger than males

Males and females of many species are often visibly different from one another. Scientists call these differences ‘sexual dimorphism’ and it has been studied extensively by evolutionary biologists all of the way back to Charles Darwin. But what is not yet clearly understood is how these differences impact an entire ecosystem.

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