Sentences with phrase «species over the millennia»

Accidental massive nuclear war and an unexpected asteroid strike — those are the two things that could wipe out the edifice of civilization that we've built up as a species over millennia.

Not exact matches

Researchers theorize that these plant species evolved over millennia to coexist with traditional agriculture.

We highlight episodes of climate change that have disrupted ecosystems and trophic interactions over time scales ranging from years to millennia by changing species» relative abundances and geographic ranges, causing extinctions, and creating transient and novel communities dominated by generalist species and interactions.

«Our species is defined by regular admixture of peoples and ideas over millennia,» said Jablonski.

Humans have driven thousands of species extinct over the millennia, ranging from moas — giant, flightless birds that lived in New Zealand — to most lemurs in Madagascar.

In the face of all these natural changes, whether over days or millennia, some species flourish while others diminish.

The enormous string of DNA that encodes a creature's machinery for survival is also a record of inheritance: it tells the story not just of the individual's parentage but also of the entire species over many millennia.

Land clearing laws have seen savannah — maintained by indigenous peoples over millennia --- give way to woody weeds, feral species and declining biodiversity over vast swathes of the Australian landscape.

No other species could have accomplished the task of putting some of the carbon back into the atmosphere that was taken out and locked in the Earth's crust by plants and animals over the millennia.

Langham led tours until he was 38, using the gigs to fund a 20 - year trek through undergrad, a Ph.D. in ecology and evolutionary biology at Cornell, and a post-doc in Australia, where he first delved into climate modeling, investigating how shifts over millennia affected seven lizard species.

Having evolved in a region with less climate variability over both the years and the millennia, tropical species may harbor a less diverse set of genes related to heat tolerance and similar traits.