The American Naturalist is a monthly peer-reviewed scientific journal that was established in 1867. It is published by the University of Chicago Press on behalf of the American Society of Naturalists. The journal covers research in ecology, evolutionary biology, population, and integrative biology. As of 2009, the editor-in-chief is Mark McPeek. According to the Journal Citation Reports, the journal has a 2010 impact factor of 4.736, ranking it 17th out of 130 journals in the category "Ecology" and 10th out of 45 journals in the category "Evolutionary Biology".
Loss of large predators tips ecosystem balance, according to study
A new study has linked the size of predators atop a food chain with the ecological chain reaction triggered when they leave the head of the table.
After 60 million years apart, two fern genera form hybrid in the mountains of France
In an article published in the March 2015 issue of The American Naturalist, a team of researchers report on a fern from the French Pyrenees that is a recently formed intergeneric hybrid between parental lineag ...
Choosy fish females may boost biodiversity
A new study offers insight into a process that could lead one species to diverge into two, researchers report in the American Naturalist.
Hidden in plain sight: Amazonian bird chick mimics toxic caterpillar to avoid being eaten
In a study published in the January 2015 issue of The American Naturalist, Gustavo A. Londoño, Duván Garcia, and Manuel Sánchez Martínez report a novel nesting strategy observed in a tropical lowland bird t ...
Distant species produce love child after 60 million year breakup
A delicate woodland fern discovered in the mountains of France is the love child of two distantly-related groups of plants that haven't interbred in 60 million years, genetic analyses show.
Seeds out of season: New modeling framework elucidates the interaction between various life stages of a plant
Researchers have created a model that considers how different stages of a plant's life cycle interact with each other. Whereas previous studies have examined the seed, vegetative, and reproductive phases ...
Conservation and immunology of wild seabirds: Vaccinating two birds with one shot
A group of researchers from the University of Barcelona (Spain), the CNRS in Montpellier (France) and Princeton University (USA) report in The American Naturalist that the vaccination of females of a long ...
Far from powerless: Ant larvae cannibalize eggs, are influenced by relatedness and sex
To the casual observer, the colonies of social insects like bees and ants appear to be harmonious societies where individuals work together for the common good. But appearances can be deceiving.
Amazonian bird chicks mimic poisonous caterpillar to avoid detection
Factors that drive sexual traits
Many male animals have multiple displays and behaviours to attract females; and often the larger or greater the better.
Bite to the death: Sugarbag bees launch all-conquering raids
They may be tiny and stingless but there's nothing sweet and innocent about a species of native Sugarbag bee when it goes to war over a coveted honey-filled hive.
Lizards in the Caribbean: How geography influences animal evolution
A new and potentially more revealing way of studying how animal evolution is affected by the geography of climate has been designed by researchers at The University of Nottingham and Harvard University.
Nature collides with James Bond: Newly discovered ant species hides in plain sight
Researchers plan and plot every considerable aspect of their work, but sometimes it's something unexpected and seemingly insignificant that leads to the real discovery. That was the case for Scott Powell, ...
Lizards help us find out which came first: the baby or the egg?
Have you ever wondered why we give birth to live young rather than lay eggs? Scientists have pondered this for a long time and answers have come from an unlikely source: some of Australia's lizards and snakes!
Butterflies switch lifestyles using hormones
Many habitats on Earth change dramatically with the seasons, profoundly affecting food availability, predation pressure and reproductive opportunities for animals living in these seasonal habitats. To survive ...