The spread of Barred Owls, a closely related, competing species
that has moved into Spotted Owls' range from the east, according to the study published in the journal of The Condor: Ornithological Applications.
In some cases, the original dominant forest type of an area has disappeared due to competing species
By establishing before potential competitors, a species may have access to increased light or higher soil resources before levels are depressed by the active growth of competing species
(McKinley and Blair, 2008).
The TRP is represented by the sum of the relative yields of the crop and the competitor in the respective proportions of plants: TRP = RPa + RPb, where RPa refers to the relative yield for the crop and RPb refers to the relative yield of the competing species
. When the TRP equals 1 (one), it indicates that the competition of resources between species was equivalent; when greater than 1 (one), competition was avoided and; when the value is minor than 1 (one), the species are antagonistic and there is mutual loss.
Kar and Chaudhuri  studied the problem of harvesting two competing species
in the presence of a predator species which feeds on both the competing species
; a combined harvesting effort is devoted to the exploitation of the first two (prey) species while the third (predator) species is not harvested.
In addition, measures must be taken to limit use of the boxes by competing species
as well as intrusion by predators.
where [x.sub.1](t) and [x.sub.2](t) denote the densities of competing species
at time t and [x.sub.3](t) denotes the density of cooperating species at time t.
The recreated 'wild experiment' of the OVP becomes simultaneously a serious archeological re-creation, a monstrosity of science, an animal rights violation, and a scene of competing species
conservation--depending on who you ask (p.
The author models the combined effects of intra-specific competition and facilitation between the individuals of a single species, and develops a paradigmatic competing species
model with a protected zone for one of the species to illustrate how large solutions and metasolutions play a pivotal role in describing the dynamics of spatially heterogeneous systems.
The effect of this lethal partnership was to cause what biologists call a "crash," which led to the extinctions of the competing species