Results 11 to 20 of about 316,128 (141)

Environmental coupling of selection and heritability limits evolution. [PDF]

open access: yesPLoS Biology, 2006
There has recently been great interest in applying theoretical quantitative genetic models to empirical studies of evolution in wild populations. However, while classical models assume environmental constancy, most natural populations exist in variable ...
A J Wilson   +6 more
doaj   +3 more sources

Meta-analysis Shows That Rapid Phenotypic Change in Angiosperms in Response to Environmental Change Is Followed by Stasis [PDF]

open access: yesThe American Naturalist, 2019
The amount and rate of phenotypic change at ecological timescales varies widely, but there has not been a comprehensive quantitative synthesis of the patterns and causes of such variation for plants. Present knowledge is based predominantly on animals, whose differences with plants in the origin of germ cells and the level of modularity (among others ...
Gorne, Lucas Damián   +1 more
openaire   +5 more sources

Evolution of microgastropods (Ellobioidea, Carychiidae): integrating taxonomic, phylogenetic and evolutionary hypotheses [PDF]

open access: yesBMC Evolutionary Biology, 2013
Background Current biodiversity patterns are considered largely the result of past climatic and tectonic changes. In an integrative approach, we combine taxonomic and phylogenetic hypotheses to analyze temporal and geographic diversification of epigean ...
Weigand Alexander M   +5 more
doaj   +2 more sources

Chapter Damasias and Thales: stasis and sophia at the term of Solon’s apodemia [PDF]

open access: yes, 2022
This paper addresses an obscure aspect surrounding Solon’s activity, which occurred after his political and legislative activity and before his opposition to Pisistratus’ moves towards tyranny.
Leão, Delfim
core   +1 more source

Patterns and implications of stasis in trilobites [PDF]

open access: yes, 1995
Stasis may be operationally defined as the occurrence of little or no evolutionary change during an interval of geological time, and is an important consequence of punctuated equilibria.
McCormick, Timothy
core   +7 more sources

Morphometric variation of extant platyrrhine molars: taxonomic implications for fossil platyrrhines [PDF]

open access: yesPeerJ, 2016
The phylogenetic position of many fossil platyrrhines with respect to extant ones is not yet clear. Two main hypotheses have been proposed: the layered or successive radiations hypothesis suggests that Patagonian fossils are Middle Miocene stem ...
Mónica Nova Delgado   +2 more
doaj   +2 more sources

A new explanation for unexpected evolution in body size. [PDF]

open access: yesPLoS Biology, 2017
Bigger is apparently frequently fitter, and body size is typically heritable, so why don't animals in wild populations evolve towards larger sizes? Different explanations have been proposed for this apparent "paradox of stasis." A new study of snow voles
Loeske E B Kruuk
doaj   +1 more source

Zebrafish as model system for the biological characterization of CK1 inhibitors

open access: yesFrontiers in Pharmacology, 2023
Introduction: The CK1 family is involved in a variety of physiological processes by regulating different signaling pathways, including the Wnt/β-catenin, the Hedgehog and the p53 signaling pathways. Mutations or dysregulation of kinases in general and of
Laura Meier   +9 more
doaj   +1 more source

Stasis. An Academic Blog on Ancient Civil War

open access: yes, 2023
Welcome to Stasis – Avenues to Ancient Civil War, an academic blog on polarization, internal conflict, and reconciliation in antiquity. Internal conflict has shaped the course of civilizations, and studying this multifaceted phenomenon offers ...
Johannes Wienand
core   +1 more source

Bacterial toxin-antitoxin systems: Novel insights on toxin activation across populations and experimental shortcomings

open access: yesCurrent Research in Microbial Sciences, 2023
The alarming rise in hard-to-treat bacterial infections is of great concern to human health. Thus, the identification of molecular mechanisms that enable the survival and growth of pathogens is of utmost urgency for the development of more efficient ...
Luis R. Pizzolato-Cezar   +2 more
doaj   +1 more source

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