macroevolution

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macroevolution

(măk′rō-ĕv′ə-lo͞o′shən, -ē′və-)
n.
Large-scale evolution occurring over a very long period time that results in the formation of new species and higher-level taxonomic groups.

mac′ro·ev′o·lu′tion·ar′y (-shə-nĕr′ē) adj.

macroevolution

A term of art for large-scale evolution of ecologically separated gene pools, which occurs at or above the level of speciation, resulting in relatively large and complex changes such as anagenesis and cladogenesis stasigenesis.

macroevolution

the collective processes by which new species arise and others become extinct.
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Species represent the basic units in theories and mechanisms of macroevolutionary change.
It opens with an essay that examines the use of birth-death models in addressing a range of questions regarding macroevolutionary patterns.
In Evolutionary Paleoecology: The Ecological Context of Macroevolutionary Change.
The research will make four relevant contributions: (1) building a unique dataset for swallowtail butterflies that includes genomic, morphological, ecological, geographic and paleontological data to further investigate processes at each evolutionary scale; (2) using genomic data and phylogeographic analyses to test speciation theories by investigating the determinants of species formation within selected species-groups; (3) using the ecomorphological dataset and time-calibrated phylogenies to understand macroevolutionary determinants of large-scale patterns of biodiversity, and (4) using all the data to explore the link between micro and macroevolution in a novel framework.
Macroevolutionary interplay between planktic larvae and benthic predators.
This huge difference is clearly attributable to an interaction of macroevolutionary and broad-scale biogeographic processes.