Results 101 to 110 of about 12,882 (250)

Macroevolution and the Fossil Record [PDF]

open access: yesEvolution, 1982
The past few years have been marked by enlivened controversy about the tempo of evolution, the legitimacy of the concept of macroevolution, and the history of these and related questions. At the core of the debate is what has become known as punctuational evolution.
openaire   +2 more sources

Mass Extinctions vs. Uniformitarianism in Biological Evolution

open access: yes, 1995
It is usually believed that Darwin's theory leads to a smooth gradual evolution, so that mass extinctions must be caused by external shocks. However, it has recently been argued that mass extinctions arise from the intrinsic dynamics of Darwinian ...
Bak, Per, Paczuski, Maya
core   +3 more sources

Simpson's tachytely or bradytely? The importance of quantifying rate uncertainty

open access: yesMethods in Ecology and Evolution
The spectacular variation in species forms and richness across space and time can be explored using sophisticated and powerful tools recently developed by evolutionary modellers. In this contribution, we ask if the classic ‘Simpsonian’ view of tachytelic
Rosana Zenil‐Ferguson, Lee Hsiang Liow
doaj   +1 more source

A simple model to study phylogeographies and speciation patterns in space

open access: yes, 2012
In this working paper, we present a simple theoretical framework based on network theory to study how speciation, the process by which new species appear, shapes spatial patterns of diversity.
Desjardins-Proulx, Philippe   +3 more
core   +2 more sources

The potential to infer the historical pattern of cultural macroevolution [PDF]

open access: bronze, 2021
Dieter Lukas   +2 more
openalex   +1 more source

Skull sinuses precluded extinct crocodile relatives from cetacean-style deep diving as they transitioned from land to sea

open access: yesRoyal Society Open Science
During major evolutionary transitions, groups develop radically new body plans and radiate into new habitats. A classic example is cetaceans which evolved from terrestrial ancestors to become pelagic swimmers.
Mark T. Young   +12 more
doaj   +1 more source

Biological Individuals [PDF]

open access: yes, 2019
The impressive variation amongst biological individuals generates many complexities in addressing the simple-sounding question what is a biological individual?
Barker, Matthew J., Wilson, Robert A.
core  

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