macroevolutionary

For them, macroevolutionary studies focus on change that occurs at or above the level of species.

Revisiting an old hypothesis with genetic theories and a macroevolutionary approach.

Excellent further reading for the keen - includes many interesting chapters with macroevolutionary theme.

Interleaved with this catalogue of marvels is an introduction to macroevolutionary theory.

Is there a separate macroevolutionary process?

The well-studied spread of lizards, which have evolved into 150 species in the Caribbean islands, is a macroevolutionary event.

Evolutionary theory (including macroevolutionary change) remains the dominant scientific paradigm for explaining the origins of Earth's biodiversity.

The computer simulations Tierra and Avida attempt to model macroevolutionary dynamics.

Micro and macroevolutionary processes are needed to determine the effects of biological dispersal of seeds.

The measure is most useful in palaeontology, where macroevolutionary changes in the dimensions of fossils can be compared.

Emerging syntheses between palaeobiogeography and macroevolutionary theory.

"The fossil record documents two mutually exclusive macroevolutionary modes separated by the transitional Ediacaran period".

They argued that the "peppered moth story" showed only microevolution, rather than speciation or other changes at the larger macroevolutionary scale.

While selection is important, and requires understanding, it is just one of many factors explaining microevolutionary events and macroevolutionary patterns.

Scope is the degree to which natural selection can be extrapolated to explain biological diversity at the macroevolutionary level, including the evolution of higher taxonomic groups.

"I haven't any particular macroevolutionary ax to grind," he said, "but I suspect that many gradualistic patterns have been obscured by the descriptive process.

The book, on which he toiled for decades, lays out his vision for synthesizing Darwin's original ideas and his own major contributions to macroevolutionary theory.

"All macroevolutionary processes take place in populations and in the genotypes of individuals, and are thus simultaneously microevolutionary processes".

First, recall the claim, at the start of this article, that studying reinforcement reveals much about the role of microevolution in the macroevolutionary process of speciation.

In the second (macroevolutionary) version, the probability of extinction for groups (usually families) of organisms is hypothesized to be constant within the group and random among groups.

Dr. Gould also credited Dr. Mayr with sowing the seeds for the "flowering of modern macroevolutionary theory."

Many aspects of plant tolerance such as its geographic variation, its macroevolutionary implications and its coevolutionary effects on herbivores are still relatively unknown (Fornoni 2011).

Genomic phylostratigraphy is a statistical approach for reconstruction of macroevolutionary trends based on the principle of founder gene formation and punctuated emergence of protein families.

A similar trend emerges when rates of increase of maximum body mass per generation for different mammalian clades are compared (using rates averaged over macroevolutionary time scales).

The original idea of the Red Queen hypothesis (macroevolutionary) was given by Leigh Van Valen in order to explain the "Law of Extinction".