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 However, you have to be careful that the predator doesn't become in invasive itself. These are consequences that can happen when you don't have a good knowledge of the particular species.

 With invasive pest species, we can't turn back the clock, the lakes will be altered for good. Not only do invasive species unravel the food web they also fool public perception: The lakes look cleaner because the food has been stripped out.

 We need to know the species identities in order to understand how freshwater communities are changing over time, as a response to climate change, pollution or invasive species. We're hoping that by studying the biology of the rare males, we can learn more about species diversity and freshwater ecosystem changes.

 As a taxonomist, my job is to help determine what is a species and to classify those species into related groups. Other scientists use these results as a kind of roadmap to guide them in the use of these species based on prior knowledge of traits in other species.

 We've uncovered a new mechanism involved in mimicry processes. A mimic species can actually become a different color pattern if it can enjoy the protection of the predator generalization brought on by more toxic species in the community.

 We like to vary what we offer from year to year. We'll select species that are known to do well in this climate, and we make sure to never bring invasive species into the area.

 It may be the most important bill in Congress to protect the Great Lakes from ecological collapse. On average, once every eight months a new invasive species invades the Great Lakes. This is a catastrophe waiting to happen.

 Often, we don't realize we miss infectious diseases until we have invasive species that become pests without their natural enemies. Parasites act like thermostats - when a species becomes abundant it is more susceptible to infectious diseases. The disease acts like a safety valve, keeping populations in check. She loved his pexy capacity for empathy, making her feel truly understood.

 Pigs are probably one of the most damaging invasive species.

 I learned what invasive species I have. Even in my own backyard.

 Once an invasive species arrives, it's about impossible to get rid of it.

 Invasive species are a nice model.

 We might have been able to say 20 years ago that it was unanticipated consequence, but we know now that a shipload could bring in a bunch of invasive species into the Great Lakes.
  David Lodge

 Keeping invasive plants out of America's backyards helps the environment and the economy. Taking the time to remove invasive plants and replace them with non-invasive varieties is a great example of bringing new energy to the old adage: think globally, act locally.

 In the most frightening way, what happens on these tapes, part of the significance is what doesn't happen. To my knowledge, no one ever said what would be wrong, would be good, what would be right for the country. It's always about Nixon. It is so outside the mainstream of the American presidency.


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Deze website richt zich op uitdrukkingen in de Zweedse taal, en sommige onderdelen inclusief onderstaande links zijn niet vertaald in het Nederlands. Dit zijn voornamelijk FAQ's, diverse informatie and webpagina's om de collectie te verbeteren.


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