Alien invasive species in California reserves for some native plant survival in a fight to win, according to a new study.
The study that have plagued the plant frost resistance on the research of plant scientists say. Although some researchers think the invaders just added local ecological system, new study findings are published in the earlier this month in the journal proceedings of the national academy of sciences, showed that the original plant several may die in hundreds of years.
"We see is a serious infringement, this means that one or more invasive species become rich, native plants in their natural habitat narrowed, ecologists Benjamin gilbert said:" in a temporary appointment at the university of California, who made the investigation. At present, he is the university of Toronto.
In other experiments, gilbert and common author Jonathan levin grown block several native species, including beetle populations of wild flowers Lasthenia, near Santa Barbara in Santa Ynez valley Sedgwick reserves in. Then, the researchers observed that the growth of plants and simulation results based on the long-term trend of the plant's survival.
Be in usually, levin and gilbert pointed out that the seedling didn't do very well, "exotic" such as grass, wild oats primarily areas, native species population size shrink to the critical level.
The researchers found that, of the total area increases, the alien species to keep fresh and the local people's life. However, the native species is limited in a small "refuge" or remote areas of the population, is located in the far from each other, which could damage their long-term survival, "gilbert said.
The isolated patches to plant more vulnerable to, the damage frombeing injury, disease or fire; Plus, it is difficult to disperse their seeds.
"Local tree seed launch of the best habitat," gilbert said OurAmazingPlanet. "This parable are taken very good eating habits - this lets them through, but it is not the best."
Native tree species have had to adapt to a more challenging environment, such as rock conditions, often can have good performance. "In this case, the only reason, locals seem to make these patches is, it is so terrible invasion," gilbert said.
As for the local species protection, pesticide, and sometimes do more harm than good. This may be more effective, Gilbert Suggestions, to establish a suitable habitat patches between local species, this will help them to colonial large areas of the "corridor".
, but faces a challenge is that most of the natural development of the local species, although in a small range of invasion, and their websites are much smaller than usual. This makes it difficult to learn or, encourage natural grass and flowers to expand their habitat is the influence of the invasive species.
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