Sentences with phrase «with ancient pollen»

Not everything from St. Paul Island is muddy: The team collected vegetation to compare it with ancient pollen and other clues to the environment stored in the sediment cores to learn how the island has changed over time

Not exact matches

Using ancient DNA, along with the remains of pollen, plants, and animals collected from lake sediments, a new study has an answer: about 12,600 years ago.

With the help of a graduate student, Williams will look for a kind of mammoth proxy: sporormiella, a fungus that lives in the dung of large herbivores, and grains of ancient pollen that can reveal what kind of vegetation once grew around the lake.

Bees began specializing as pollen and nectar feeders and living in social groups about 60 million years ago — their ancient biology was then suddenly expected to keep pace with a barrage of changes that humans had exposed them to over just 200 years.

The fossil find, an ancient relative of today's bleeding hearts, poses a new puzzle in the study of plant evolution: did Earth's dominant group of flowering plants evolve along with its distinctive pollen?

Ancient pollen samples suggest that the landscape was a bit like today's Chilean Andes: grassy tundra dotted with small trees.

Ancient pollen samples suggest that the landscape was a bit like today's Chilean Andes: grassy tundra dotted with small trees.This vegetated period peaked during the middle Miocene, when atmospheric carbon dioxide levels were around 400 to 600 parts per million.