Results 51 to 60 of about 2,429,852 (338)

A phylogenetic comparative analysis on the evolution of sequential hermaphroditism in seabreams (Teleostei : Sparidae) [PDF]

open access: yes, 2020
The Sparids are an ideal group of fish in which to study the evolution of sexual systems since they exhibit a great sexual diversity, from gonochorism (separate sexes) to protandrous (male-first) and protogynous (female-first) sequential ...
Benvenuto, C   +3 more
core   +2 more sources

Effect of inbreeding and heritability of sperm competition success in the bulb mite Rhizoglyphus robini [PDF]

open access: yes, 2005
Sperm competition is a potent evolutionary force shaping the reproductive biology of most animal species. Here, we estimated the heritability of sperm competition success in the promiscuous bulb mite Rhizoglyphus robini.
Keller, L., Konior, M., Radwan, J.
core   +1 more source

Enhanced heat tolerance of viral-infected aphids leads to niche expansion and reduced interspecific competition

open access: yesNature Communications, 2020
Vector-borne pathogens are known to alter the phenotypes of their primary hosts and vectors, with implications for disease transmission as well as ecology.
Mitzy F. Porras   +10 more
semanticscholar   +1 more source

Kin selection in interactions between gametes: Gamete competition, gamete limitation, and sex allocation

open access: yesFrontiers in Ecology and Evolution, 2023
Kin selection on one hand, and gamete interactions in post-ejaculatory sexual selection on the other are two major research themes that have risen to prominence over the past half century and have simultaneously developed into central fields of research ...
Lauri Myllymaa, Jussi Lehtonen
doaj   +1 more source

Apparent competition drives community-wide parasitism rates and changes in host abundance across ecosystem boundaries [PDF]

open access: yes, 2016
Species have strong indirect effects on others, and predicting these effects is a central challenge in ecology. Prey species sharing an enemy (predator or parasitoid) can be linked by apparent competition, but it is unknown whether this process is strong
Didham, RK   +5 more
core   +3 more sources

Translating advances in microbial bioproduction to sustainable biotechnology

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Advances in synthetic biology have radically changed our ability to rewire microorganisms and significantly improved the scalable production of a vast array of drop-in biopolymers and biofuels.
David N. Carruthers   +3 more
doaj   +1 more source

Multifactorial Competition and Resistance in a Two-Species Bacterial System. [PDF]

open access: yesPLoS Genetics, 2015
Microorganisms exist almost exclusively in interactive multispecies communities, but genetic determinants of the fitness of interacting bacteria, and accessible adaptive pathways, remain uncharacterized.
Anupama Khare, Saeed Tavazoie
doaj   +1 more source

The Trophic Niche of Two Sympatric Species of Salamanders (Plethodontidae and Salamandridae) from Italy

open access: yesAnimals, 2022
The trophic niche of a species is one of the fundamental traits of species biology. The ideal trophic niche of a species is realized in the absence of interspecific competition, targeting the most profitable and easy-to-handle food resources.
Enrico Lunghi   +4 more
doaj   +1 more source

The coevolution of toxin and antitoxin genes drives the dynamics of bacterial addiction complexes and intragenomic conflict [PDF]

open access: yes, 2012
Bacterial genomes commonly contain ‘addiction’ gene complexes that code for both a toxin and a corresponding antitoxin. As long as both genes are expressed, cells carrying the complex can remain healthy.
Brown, Sam P.   +3 more
core   +1 more source

Host–symbiont specificity determined by microbe–microbe competition in an insect gut

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance How are specific host-symbiont mutualisms stabilized without vertical transmission? This is one of the fundamental questions in evolutionary biology.
H. Itoh   +7 more
semanticscholar   +1 more source

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