He supposed that lineages of species persisted indefinitely, changing from one form into another, without branch or extinction.
Despite this, many historically rare plant species with small, patchily distributed populations and geographically restricted ranges have persisted in changing environments over very long time frames, and may not exhibit the classic effects of small population theory.
And yet, cities persist at changing them.
The problem of temporary intrinsics focuses on the possibility of persisting things changing their properties, or, at least, changing their intrinsic properties.
Fun with Living Fossils: Examine "living fossils" of plants and animals that persist despite changing little in appearance from forms that appeared hundreds of millions of years ago in the fossil record.
Phylogeographic patterns in southern Australia indicate that major biotic responses to climatic change involve persistence and resilience rather than large-scale migration, indicating the importance of dynamic evolutionary processes and a mosaic of habitats in heterogeneous landscapes for species to persist though changing environmental conditions.
Importantly, our observations persist when changing the definition of CVD to 1) exclude cases defined solely on the basis of angina; 2) exclude cases defined solely on the basis of angina, or coronary revascularization (Data not shown).
Conservation biologists have largely focussed on the latter, even though adaptive genetic diversity is needed for organisms to evolve and persist in changing environments.
Any deviation in the mean compensatory ability of hybrids relative to their wild progenitors, or any notable costs to compensation in terms of body morphology, could affect the ability of hybrids to persist in changing environments.
These risks and vulnerabilities are further exacerbated by several emerging trends such as persisting inequality, climate change, changing population dynamics, and rising economic volatility.
