0000000000120685
AUTHOR
T. Ketola
Testing theories of sexual selection in decorated crickets (Gryllodes sigillatus)
Question: Do females choose males according to their level of acoustic sexual activity, fluctuating asymmetry, size, condition or do they select for genetic compatibility according to relatedness? What are the relative strengths of selection on these traits and what might be the benefit of the choice – large nuptial gifts, heritable attractiveness or quality? Organism: Laboratory colony of decorated crickets (Gryllodes sigillatus). Methods: Behavioural trial of female preference on male traits, multivariate logistic regression of male traits on female preference, and heritability estimation of the traits with an animal model. Results: Female attraction strongly discriminated in favour of ce…
MOESM1 of Propagule pressure increase and phylogenetic diversity decrease community’s susceptibility to invasion
Additional file 1: Figure S1. Phylogeny of the study species, based on 16S rRNA. The tree includes the sequences FJ971882 (E. aerogenes), GQ856082 (L. adecarboxylata), NR_041980 (S. marcescens ssp. marcescens), NR_024570 (E. coli), AF094736 (P. putida), and AB680102 (P. chlororaphis). The sequence accession numbers were obtained from the NCBI nucleotide sequences database. Metrics for mean phylogenetic distances and variance of distances were calculated based on standardized distances between species. Results from data analysis of full data containing all communities. Figure S2. Effects of propagule pressure (A), phylogenetic diversity (B) and phylogenetic distance (C) on invasion success a…
Data from: Constant, cycling, hot and cold thermal environments: strong effects on mean viability but not on genetic estimates
It has frequently been suggested that trait heritabilities are environmentally sensitive, and there are genetic trade-offs between tolerating different environments such as hot and cold or constant and fluctuating temperatures. Future climate predictions suggest an increase in both temperatures and their fluctuations. How species will respond to these changes is uncertain, particularly as there is a lack of studies which compare genetic performances in constant vs. fluctuating environments. In this study, we used a nested full-sib/half-sib breeding design to examine how the genetic variances and heritabilities of egg-to-adult viability differ at high and low temperatures with and without da…