Results 131 to 140 of about 24,512 (285)

Male size does not correlate with fertilization success in two bufonid toads that show size-assortative mating

open access: yesCurrent Zoology, 2013
We examined sexual size dimorphism (SSD), mating pattern, fertilization efficiency and female reproductive traits in two bufonid toads (Bufo gargarizans and Duttaphrynus melanostictus) to test the idea that importance of male body size for egg ...
Xiao-Li FAN, Zhi-Hua LIN, Xiang JI
doaj  

Editorial on the Special Issue “Changes in Educational Homogamy and Its Consequences”

open access: yesComparative Population Studies
Recent decades have seen major changes in the educational profiles of the populations of Western industrialised countries, notably a sharp rise in educational attainment and a reversal of the gender gap in education.
Pia Blossfeld   +2 more
doaj   +1 more source

Antagonistic Effects of Assortative Mating on the Evolution of Phenotypic Plasticity along Environmental Gradients. [PDF]

open access: yesAm Nat, 2023
Soularue JP   +7 more
europepmc   +1 more source

Assortative Mating and Divorce: Evidence from Austrian Register Data [PDF]

open access: yes
This paper documents that changes in assortative mating patterns over the last four decades along the dimensions of age, ethnicity, religion and education are not responsible for the increasing marital instability in Austria.
Martin Halla   +2 more
core  

Synthesizing beaver coexistence messaging with the capability, opportunity, and motivation behavior model

open access: yesConservation Biology, EarlyView.
Abstract In the western United States, conservation practitioners are increasingly working with private landowners to restore habitat for North American beavers (Castor canadensis) and to use nonlethal mitigation techniques when beavers damage crops and infrastructure.
Brian D. Erickson, Megan S. Jones
wiley   +1 more source

The Heterogeneous Impact of Children on Maternal Employment: Evidence From East and West Germany

open access: yesEconomics of Transition and Institutional Change, EarlyView.
ABSTRACT This study investigates the causal effect of fertility on female labour market outcomes in East and West Germany. We use twin births as an exogenous variation for family size. Our results suggest a negative relationship between the number of children and maternal labour market outcomes.
Johannes Köckeis, Sven Stöwhase
wiley   +1 more source

Mechanisms of species divergence through visual adaptation and sexual selection:Perspectives from a cichlid model system

open access: yesCurrent Zoology, 2010
The theory of ecological speciation suggests that assortative mating evolves most easily when mating preferences are directly linked to ecological traits that are subject to divergent selection.
Martine E. MAAN, Ole SEEHAUSEN
doaj  

When Similar Individuals Don't Attract: Absence of Assortative Mating by Coloration in a Damselfly With Honest Signaling

open access: yesEthology, EarlyView.
In Acanthagrion lancea damselflies, both sexes display blue ornamentation, but do they choose mates based on it? We tested whether mutual mate choice and time constraints influence ornament evolution. Blue coloration correlated with individual quality, but individuals did not choose mates based on color, and this was unaffected by time constraints over
Maria C. A. Melillo   +3 more
wiley   +1 more source

Reproductive consequences of mate retention and divorce in a short‐lived migratory passerine

open access: yesIbis, EarlyView.
In socially monogamous birds, pair‐bond duration varies across species, from single‐breeding associations to long‐lasting, multi‐year bonds. Studies of pair retention and divorce have focused on long‐lived and sedentary species rather than short‐lived and migratory species.
Daniel R. Rodríguez‐Solís   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy