12 research outputs found
R code for analysis
This R file contains the examples necessary to reproduce our analyses using the accompanying data set. This code has been written by Jamie Winternitz, who can be contacted at jcwinternitz-at-gmail-dot-com. The file consists of the nine following sections: # 1. Loading and visualizing data # 2. DIC-based model selection for random effects # 3. Heterogeneity estimation # 4. Univariate estimates of moderators and contrasts # 5. Forest plots # 6. Tests for publication bias # 7. Testing if negative MHC effect sizes (indicating similarity) differ from zero # 8. Bivariate models for MHC~Neutral marker correlations # 9. Power analysis for random-effects meta-analysis # 10. Plotting the phylogenetic signal of MHC-associated mate choic
Repeated measures ANOVAs and within subjects effects (parasite abundance/prevalence in the first and the second year) with laying date, clutch size, brood size, body condition and population density of hosts in two separate study years as within subjects factors and interactions between the repeated measure and latitude, temperature change, variation in parasitism (i.e. change in abundance and prevalence of parasites) and identity of parasite group as between subjects factors. P-values smaller than 0.05 are shown in bold.
<p>Interactions are indicated by *.</p
Change in parasite abundance and parasite prevalence over time for different categories of parasites.
<p>(A) Change in parasite abundance and (B) change in parasite prevalence between study years for different parasite taxa. Box plots show means, standard errors and 95% confidence intervals. The right Y-axis in (A) is the number of non-dipteran parasites.</p
Host clutch size and body condition in relation to change in temperature.
<p>(A) Change in clutch size in relation to change in temperature. (B) Change in body condition in relation to change in temperature. The size of symbols is proportional to log-transformed sample sizes, while the lines are linear regression lines.</p
Geographical distribution of the 26 sites for the study of temporal change in abundance and prevalence of parasites of birds and their consequences.
<p>Geographical distribution of the 26 sites for the study of temporal change in abundance and prevalence of parasites of birds and their consequences.</p
Temporal change in laying date of hosts, body condition of hosts, population size of hosts, brood size of hosts and clutch size of hosts between the first study year and 2010.
<p>Box plots show means, standard errors and 95% confidence intervals.</p
Repeated measures ANOVAs with parasite abundance and prevalence in two separate study years as within subjects factors and locality identity, parasite identity, latitude, interval in years and temperature change (°C/year) as between subjects factors.
<p>Each effect was estimated in separates models. P-values smaller than 0.05 are shown in bold.</p