Now showing items 1-10 of 30
The genetical theory of multi-level selection
(2015-02) - Journal article,
The theory of multi-level selection (MLS) is beset with conceptual difficulties. Whilst it is widely agreed that covariance between group trait and group fitness may arise in the natural world and drive a response to “group ...
Ecology drives intragenomic conflict over menopause
(2014-02) - Journal item,
Menopause is the transition from reproductive to non-reproductive life well before natural death. Rather than involving a smooth, rapid change, it is normally preceded by a long period of erratic hormonal fluctuation that ...
The meaning of death : evolution and ecology of apoptosis in protozoan parasites
(2011-12) - Journal item,
The discovery that an apoptosis-like, programmed cell death (PCD) occurs in a broad range of protozoan parasites offers novel therapeutic tools to treat some of the most serious infectious diseases of humans, companion ...
Evolution of Helping and Harming in Viscous Populations When Group Size Varies
(2013) - Journal article,
Recent years have seen huge interest in understanding how demographic factors mediate the evolution of social behavior in viscous populations. Here we study the impact of variation in group size on the evolution of helping ...
Is bacterial persistence a social trait?
(2007-08) - Journal article,
The ability of bacteria to evolve resistance to antibiotics has been much reported in recent years. It is less well-known that within populations of bacteria there are cells which are resistant due to a non-inherited ...
Resource supply and the evolution of public-goods cooperation in bacteria
(2008-05-14) - Journal article,
Background: Explaining public-goods cooperation is a challenge for evolutionary biology. However, cooperation is expected to more readily evolve if it imposes a smaller cost. Such costs of cooperation are expected to decline ...
Haplodiploidy and the evolution of eusociality : split sex ratios
(2012-02) - Journal article,
It is generally accepted that from a theoretical perspective, haplodiploidy should facilitate the evolution of eusociality. However, the "haplodiploidy hypothesis" rests on theoretical arguments that were made before recent ...
The evolution of hermaphroditism by an infectious male-derived cell lineage : an inclusive-fitness analysis
(2011-08) - Journal article,
There has been much recent interest in the role for genetic conflicts to drive the evolution of genetic systems. Here we consider the evolution of hermaphroditism in the scale insect tribe Iceryini and the suggestion that ...
Haplodiploidy and the evolution of eusociality : split sex ratios (vol 179, pg 240, 2012)
(2012-04) - Journal article,
Dynamics of sex ratio and female unmatedness under haplodiploidy
(2014-05) - Journal article,
Haplodiploid sex determination allows unmated females to produce sons. Consequently, a scarcity of males may lead to a significant proportion of females remaining unmated, which may in turn give rise to a surfeit of males ...