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native species
They are generalist predators and thus may affect native species through predation.
      
While some facilities maintain both exotic and native species, most (68%) house native species only.
      
The arid climate of the islands may hinder the establishment of invasive species, which are often not able to survive in the bush and thus reduces their impact on native species.
      
The first group comprises 35 native species, of which seven are currently extinct or vanished.
      
rusticus compared to native species, resulting in increased probability of shifts in crayfish community composition.
      
The use of the six native species should pose no ecological risk but the use of non-native species needs caution.
      
TheVmax/Km of both modified LAX and HAX decreased relative to the native species.
      
An apparent correlate of this biological invasion has been a sudden decline in the population numbers of Cochliomyia macellaria, a native species of the Americas.
      
The rates of larvae killed as a result of the predation, as well as its implications to population dynamics of introduced and native species are discussed.
      
The insect is a native species, historically a minor pest of oaks, found throughout the eastern United States.
      
When microbial communities are used, identification and enumeration are often impossible because the majority of species are identifiable only when cultured and most native species cannot be cultured.
      
Analysis of the model solutions shows that invasion of an alien species is successful only in the absence of competition between the juvenile invaders and the native species.
      
The native species of China hold great potential, and deserve more research attention, for meeting these needs.
      
Springer, Heidelberg, 2006) have recently used the AWS criterion in a M/G/1 queuing model to show that there is no necessary tension between economic cost minimization and inspection stringency in non-native species management.
      
The approach described here may be applied to other native species to produce highly specific and sensitive rapid tests.
      
In the last decades Costa Rica has undertaken considerable efforts to study the silvicultural characteristics of the native species of the family Podocarpaceae, in particular Podocarpus oleifolius var.
      
macrostachyus (Parl.) Buchholz and Gray, in order to evaluate its suitability for cultivation in mixed plantations with preference for native species.
      
Invasive species impacts on native species and communities have been widely recognised for decades and may involve important economical losses.
      
We identified different distributions of marine nonindigenous species (NIS) and native species on some artificial structures versus natural reefs and using experimental manipulations, revealed some possible causal mechanisms.
      
Conversely, on reefs and seawalls, numbers of native species were up to three times greater than numbers of NIS.
      
 

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