Results 61 to 70 of about 5,976,385 (321)

Incongruence between gene trees and species trees and phylogenetic signal variation in plastid genes.

open access: yesMolecular Phylogenetics and Evolution, 2019
The current classification of angiosperms is based primarily on concatenated plastid markers and maximum likelihood (ML) inference. This approach has been justified by the assumption that plastid DNA (ptDNA) is inherited as a single locus and that its ...
Deise J P Gonçalves   +4 more
semanticscholar   +1 more source

Floristic response to urbanization: Filtering of the bioregional flora in Indianapolis, Indiana, USA [PDF]

open access: yes, 2017
PREMISE OF THE STUDY: Globally, urban plant populations are becoming increasingly important, as these plants play a vital role in ameliorating effects of ecosystem disturbance and climate change.
Aronson, Myla F.J.   +2 more
core   +3 more sources

Little ecological divergence associated with speciation in two African rain forest tree genera [PDF]

open access: yes, 2011
Background: The tropical rain forests (TRF) of Africa are the second largest block of this biome after the Amazon and exhibit high levels of plant endemism and diversity.
Chatrou, Lars   +3 more
core   +4 more sources

Phylogenetic diversity of stress signalling pathways in fungi [PDF]

open access: yesBMC Evolutionary Biology, 2009
Abstract Background Microbes must sense environmental stresses, transduce these signals and mount protective responses to survive in hostile environments. In this study we have tested the hypothesis that fungal stress signalling pathways have evolved rapidly in a niche-specific fashion that is independent of phylogeny.
Nikolaou, Elissavet   +5 more
openaire   +4 more sources

Form-function relationships in dragonfly mandibles under an evolutionary perspective [PDF]

open access: yes, 2017
© 2017 The Author(s). Functional requirements may constrain phenotypic diversification or foster it. For insect mouthparts, the quantification of the relationship between shape and function in an evolutionary framework remained largely unexplored.
Blanke, Alexander   +4 more
core   +2 more sources

Phylogenetic signal in predator–prey body-size relationships [PDF]

open access: yesEcology, 2011
Body mass is a fundamental characteristic that affects metabolism, life history, and population abundance and frequently sets bounds on who eats whom in food webs. Based on a collection of topological food webs, Ulrich Brose and colleagues presented a general relationship between the body mass of predators and their prey and analyzed how mean predator ...
Naisbit, Russell E.   +3 more
openaire   +3 more sources

Genome-wide signatures of convergent evolution in echolocating mammals [PDF]

open access: yes, 2013
Evolution is typically thought to proceed through divergence of genes, proteins, and ultimately phenotypes(1-3). However, similar traits might also evolve convergently in unrelated taxa due to similar selection pressures(4,5).
A Schneider   +64 more
core   +1 more source

Measuring avian specialization

open access: yesEcology and Evolution, 2019
Measuring the extent to which a species is specialized is a major challenge in ecology, with important repercussions for fundamental research as well as for applied ecology and conservation.
Federico Morelli   +3 more
doaj   +1 more source

phylosignal: an R package to measure, test, and explore the phylogenetic signal

open access: yesEcology and Evolution, 2016
Phylogenetic signal is the tendency for closely related species to display similar trait values as a consequence of their phylogenetic proximity. Ecologists and evolutionary biologists are becoming increasingly interested in studying the phylogenetic ...
F. Keck, F. Rimet, A. Bouchez, A. Franc
semanticscholar   +1 more source

Genetic structure and evolution of the Leishmania genus in Africa and Eurasia: what does MLSA tell us [PDF]

open access: yes, 2013
Leishmaniasis is a complex parasitic disease from a taxonomic, clinical and epidemiological point of view. The role of genetic exchanges has been questioned for over twenty years and their recent experimental demonstration along with the identification ...
Berry, Vincent   +7 more
core   +4 more sources

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