M. B. Morrissey

The missing fraction problem as an episodes of selection problem

The paper reframes the missing fraction problem as an episodes of selection problem, showing how to estimate phenotypic selection or adjust response to selection when data are missing due to viability selection.

Phenotypic selection analysis and confounding environmental variables

The paper addresses environmental confounding in phenotypic selection analysis by introducing a path analysis framework to improve predictions of evolutionary response.

A synthesis of senescence predictions for indeterminate growth, and support from multiple tests in wild lake trout

The paper tests senescence predictions in wild lake trout, finding negligible senescence when maximum size is only slightly larger than maturation size, and potential negative senescence in populations with larger maximum sizes.

Multivariate distributions of behavioural, morphological, and ontogenetic traits in hybrids bring new insights into the divergence of sympatric Arctic charr morphs.

The paper examines phenotypic traits in hybrids of Arctic charr morphs to understand speciation processes, finding reduced phenotypic variance and altered trait correlations in hybrids.

Selection of lamb size and early pregnancy in Soay sheep (Ovies aries)

The paper examines the trade-off between survival and size-dependent reproduction in Soay sheep, showing that larger lambs are more likely to become pregnant but this has a viability cost, reducing positive selection for larger size.

Fixed effect variance and the estimation of the heritability: Issues and solutions

The paper addresses issues in heritability estimation using mixed effects models and proposes solutions that include fixed effects variance in heritability calculations.