The benefits of CO2 are likely to vary among species of producers, potentially leading to
shifts in species dominance in a high CO2 world.
Local variations in the environment appear to be a much more accurate predictor of species shifts than
variations in the species life histories and other factors.
It is the most common natural cause of death
in the species as a whole, usually striking elderly dogs.
Almost 80 percent of the communities the team examined showed substantial changes
in species composition, averaging about 10 percent change per decade — significantly higher than the rate of change predicted by models.
Fifty - nine of the one hundred biological communities showed an increase
in species richness and 41 a decrease.
Such challenges are
increased in species with relatively small numbers or that have broadly distributed mating colonies.
As one person, one human to another, one species trying to talk to
others in our species, what really matters here?
By now you should be quite convinced that evolution has not optimized for longevity
in species like the common mouse.
We show that the same principles are true even
in species such as fruit flies that are not in tightly - knit groups.
A large, mature
female in some species can produce up to 10 times as many offspring as a fish that's able to reproduce, but half the size.
Each species, and each
individual in that species experiences the world through their unique sensory system and past conditioning.
Evolution is simply the observed changes
in species over time as they adapt and improve to survive.
The study used statistical tools to identify matches between
genes in both species, and the criteria were relatively strict because the goal was to identify clearly related genes.
Cities with more natural habitats support more bird and plant species and experience less
loss in species as the city grows.
The discovery represents the first solid evidence that an animal other than humans can discriminate between emotional
expressions in another species, the researchers say.
In times of population stressors (lack of food, ecological challenges, etc.) the rate of
males in a species born gay increases.
By choosing to invest in a specific project, companies can make a direct impact
in species conservation, education, or public health.
This enables plants to maintain their level of biomass at an approximately equal
level in species - poor as well as species - rich ecosystems.
They are now hoping to study these further to unravel whether they can be activated to trigger
regeneration in species like humans that currently can not do this.
By targeting only the largest, oldest
fish in a species, we're inadvertently manipulating fish genetics.
Design an environment that is physically complex and encourage your cat to
engage in species - typical behavior.
The external signs of pain that human beings show are very
similar in species most closely related to us — mammals and birds.
This was an experimental study in mice, which allows for conclusions to be made about cause and
effect in this species.
«There are people who are so
invested in this species that they don't like someone else coming in and telling them something different,» he says.