"Ecosystem" is an intuitively appealing concept to most ecologists, but, in spite of its widespread use, the term remains diffuse and ambiguous. The authors of

A New Ecology: Systems Perspective, Second Edition, gives an overview of the commonalities of all ecosystems from a variety of properties, including physical op

Ever since the acorn woodpecker was observed and described by Spanish explorers, its behavior--particularly the unique habit of caching acorns in specialized st

A common tendency in the field of population ecology has been to overlook individual differences by treating populations as homogeneous units; conversely, in be