Explain how poaching can contribute to the over utilisation of a species

Poaching of protected old growth forest trees in British Columbia, Canada can result in the decimation of these ancient giants and destroy the  biodiversity that they represent because many other plants depend on them like undergrowth species. 

Essential for a scientist to do for credibility

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

Give me the statements