In ethology, territory is the sociographical area that an animal of a particular
species ... In birds, golden eagles (Aquila chrysaetos) have territories of 9,000
hectares, least flycatchers' .....
territorial behavior may affect a population do not appear to have been as ...
Operationally, territories are best defined in terms of areas “defended” over a ....
The prediction that dense breeding populations of a territorial species should ....
sequence of this, but offer less good chances of success (or, of course, if many
A 'territory' can be defined as any defended area & most birds are territorial (in
the sense ... Birds should only defend territories if the benefits of defense
outweigh the costs. .... Several studies with a variety of species have revealed
that males (and ... So, when densities are high in the good (or rich) habitats, a
Territorial boundaries may be marked by sounds such as bird song, or scents ... If
such advertisement does not discourage intruders, chases and fighting follow. ...
The male cougar has a large territory that may overlap the territories of several ...
Territorial species tend to be distributed over the landscape in a more regular .....
The Warfare between Different Species and its Relation to the Territory .... There
may be some immature birds which, though they have not reached the necessary
.... Since the male isolates itself, it follows, if the union of the sexes is to be ...
utilise their powers of producing sound only under certain well-defined conditions
These birds occupy well-defined territories. ... are actually improving their
chances of eventually raising larger families than they would have if they started
right at it. ... Conversely, those species that employ helpers tend to be
well designed, it can be a research tool in its own right providing that suitable .... If
the general distribution of the species has been mapped by an atlas project.
Introduction | 21 ..... A definition of truly random sampling is that each ..... It is an
inefficient method for recording non-territorial species, semi-colonial species, ...
In general, Florida scrub-jays have well-defined territories defended ... survey
protocol must include a systematic search for individual birds while periodically
using a ... If access to the surrounding areas of the subject lot is limited, establish
playback ... scrub-jays are indicators of the level of use of a property by the
Bird Species at BirdChannel.com ... song in a large shared-cage than a smaller
one, but not as much song if each canary has his own well-defined territory.
An estimated 90 percent of all bird species are monogamous. Monogamy is
defined as one male mating with one female and forming a "pair ... Presumably
monogamy evolved in situations where young have a much better chance of
surviving if ... a territory containing a nest cavity), but experimental removal of
males has ...