According to studies by Erle Ellis, an ecologist at the University of Maryland, Baltimore County, the vast majority of ecosystems on the planet now reflect the presence of people.

马里兰大学巴尔的摩分校的生态学家艾勒·艾丽斯(Erle Ellis)研究表明，现在地球上的大部分生态系统都反应了人类的活动。

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The trust wants to hear from volunteers willing to help county recorder Gareth Ellis.

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The force's new Conservative police and crime commissioner, Matthew Ellis, made the announcements at a meeting with the county's police and crime panel.

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Tracy Ellis teaches robotics and computer classes at Bluestone High School in Mecklenburg County, Virginia, one of the stops on President Obama's American Jobs Act Bus Tour this week.

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