#Question id: 11171
#Section 1: Ecology
Starlings often decorate their nests with sprigs of carrot leaves because
#Question id: 11244
#Section 4: Behavioural Ecology
An individual plant that is a monoecious hermaphrodite has
#Question id: 9220
#Section 2: Evolution
Which of the following factors could cause the largest increase in the effective population size of a species?
#Question id: 9197
#Section 2: Evolution
What is the biological significance of genetic diversity between populations?
#Question id: 10652
#Section 2: Evolution
Which factors (limited space or overcrowding; limited food; Predators; parasite and diseased) tend to act in a density-dependent manner; Tony Sinclair (1989) many studies of density dependence in 51 populations of insects, 82 populations of large mammals, and 36 populations of small mammals and birds. Which of the following observation is most likely true?
a) Insects showed a wide variety of causes of density dependence and no one density-dependent factor was of overriding importance
b) The lesser the amount of available food, the greater the mortality of large mammals
c) Space and social interactions were more important for smaller mammals and birds, because they are more territorial