Reduced fitness of secondary females in a polygynous species: a 32-yr study of Savannah sparrows
SD Mueller, NT Wheelwright, DJ Mennill… - Behavioral …, 2025 - academic.oup.com
The evolution of mating systems reflects a balance of the often-conflicting interests of males
and females. Polygyny, a mating system in which males have multiple mates, presents a …
and females. Polygyny, a mating system in which males have multiple mates, presents a …
Fluctuating selection driven by global and local climatic conditions leads to stasis in breeding time in a migratory bird
The origin of natural selection is linked to environmental heterogeneity, which influences
variation in relative fitness among phenotypes. However, individuals in wild populations are …
variation in relative fitness among phenotypes. However, individuals in wild populations are …
Sex-specific fitness consequences of mate change in Scopoli's shearwater, Calonectris diomedea
Highlights•We investigated the fitness consequences of mate change.•Widowing was the
most common cause of mate change.•Females that changed mates increased survival and …
most common cause of mate change.•Females that changed mates increased survival and …
Females Are More Aggressive Than Males towards Same- and Opposite-Sex Intruders in the Blue Tit (Cyanistes caeruleus)
Simple Summary Animals use aggressive behaviour to gain access to resources such as
food and mates, and protect their offspring. Individuals vary in the way they express …
food and mates, and protect their offspring. Individuals vary in the way they express …
Poor reproductive success of polygynously mated female birds with obligatory bi-parental care: a result of deceptive behaviour of males?
I Kujala, H Pöysä, E Korpimäki - Behavioral Ecology and Sociobiology, 2022 - Springer
Social polygyny usually benefits males by increasing the number of offspring, whereas it is
detrimental for females as they must share the resources provided by their mate. An …
detrimental for females as they must share the resources provided by their mate. An …
Phenotypic selection on an ornamental trait is not modulated by breeding density in a pied flycatcher population
Most studies of phenotypic selection in the wild have focussed on morphological and life‐
history traits and looked at abiotic (climatic) variation as the main driver of selection …
history traits and looked at abiotic (climatic) variation as the main driver of selection …
Parasites during early life mediate the strength of phenotypic selection on sexual traits.
Sexually selected phenotypes are key to understanding population and eco-evolutionary
dynamics since the expression of these traits is tightly linked to reproduction and population …
dynamics since the expression of these traits is tightly linked to reproduction and population …
Long‐term annual and spatial variation of polygyny in the white‐throated dipper (Cinclus cinclus)
Mating strategies are key components in the fitness of organisms, and notably in birds the
occurrence of monogamy versus polygyny has attracted wide interest. We address this by a …
occurrence of monogamy versus polygyny has attracted wide interest. We address this by a …