Sentence examples for extinction over time from inspiring English sources

"These measures show which species are threatened with extinction and show that more and more species are becoming at risk of extinction over time," Dr Regan told BBC Earth.

Questions include: "Which group has the highest rates of extinction over time?"; "Which group is the most stable (least volatile)?"; and "Based on the above readings, which group do you expect to have survived the longest?

Discrete, one-time sampling may not only fail to record some seasonally occurring forms, but also give little information about changes in the species composition, including local extinction, over time as a consequence of natural events or human interference.

Less obvious is the minimum mutation rate that will cause extinction over time and what deleterious fitness effects are needed for extinction.

For example, sampling the fossil record for marine vertebrate and invertebrate taxa from the Phanerozoic every ten thousand years over twenty million years revealed a series of irregular and unpredictable extinction pulses over time resembling "a forest of small events punctuated by a smaller number of high spikes".

There was no evidence that the animal responded according to the ratio of time accumulated during the CS in extinction over the time in the CS expected before the reinforcer.

While many phylogenies are characterized by a decreasing rate of diversification (logistic growth or impact of extinctions [ 62]), a γ = 3.22 suggests a diversification rate that is highly increasing over time.

"People change over time.

Paleontologists distinguish between background extinction, the steady rate at which species disappear through geologic time, and mass extinctions, the episodic events in which large numbers of species become extinct over time spans short enough to appear almost instantaneous on the geologic scale.

As the isolates were taken over a limited timeframe, not surprisingly there was no discernable pattern in regards to the introduction or extinction of strains over time in the area.

The number of surviving species in a lineage reflects the rate of speciation less extinctions that occur over time, i.e. more ancient speciation events are likely to leave fewer surviving species in the lineage than the more recent ones.