期刊: AMERICAN NATURALIST, 2022; 199 (2)
Cetaceans (whales, dolphins, and porpoises) have undergone a radical transformation from the typical terrestrial mammalian body plan to a streamlined ......
期刊: AMERICAN NATURALIST, 2022; 200 (6)
In animal-pollinated plants, the growth environment and pollination environment are two important agents of natural selection. However, their simultan......
期刊: AMERICAN NATURALIST, 2022; 199 (3)
With the twofold cost of sex, derived asexual organisms have an immediate reproductive advantage over their sexual sisters. Yet the twiggy phylogeneti......
期刊: AMERICAN NATURALIST, 2022; 199 (6)
Ecological interactions link species in networks. Loss of species from or introduction of new species into an existing network may have substantial ef......
期刊: AMERICAN NATURALIST, 2022; 200 (6)
When sons and daughters have different fitness costs and benefits, selection may favor deviations from an even offspring sex ratio. Most theories on s......
期刊: AMERICAN NATURALIST, 2022; 199 (3)
In many species, parental age at reproduction can influence offspring performance and life span, but the direction of these effects and the traits aff......
期刊: AMERICAN NATURALIST, 2022; 200 (2)
Determining how and how often asexual lineages emerge within sexual species is central to our understanding of sex-asex transitions and the long-term ......
期刊: AMERICAN NATURALIST, 2022; 200 (2)
Crook published a landmark study on the social organization of weavers (or weaverbirds, family Ploceidae) that contributed to the emergence of sociobi......
期刊: AMERICAN NATURALIST, 2022; 200 (6)
Maternal effects can give newborns a head start in life by adjusting natal phenotypes to natal environments, yet their strength and adaptiveness are o......
期刊: AMERICAN NATURALIST, 2022; 199 (2)
The idea of applying game theory to problems in biology was given a formal basis nearly 50 years ago. Since then, the theory has advanced, and there h......
期刊: AMERICAN NATURALIST, 2022; 199 (3)
Genital morphology reveals rapid diversification among species, and species-specific divergence in genital morphology may result in reproductive isola......
期刊: AMERICAN NATURALIST, 2022; 200 (2)
Resource competition theory predicts coexistence and exclusion patterns based on species' R*s, the minimum resource values required for a species to p......
期刊: AMERICAN NATURALIST, 2022; 199 (6)
Host plant specialization across herbivorous insects varies dramatically, but while the molecular mechanisms of host plant adaptations are increasingl......
期刊: AMERICAN NATURALIST, 2022; 200 (6)
The adaptive potential of nonheritable somatic mutations has received limited attention in traditional evolutionary theory because heritability is a f......
期刊: AMERICAN NATURALIST, 2022; 199 (6)
The process of adaptation toward novel environments is directly connected to the acquisition of higher fitness relative to others. Such increased fitn......