I think that what ESA might be pointing out is that these human dominated landscapes are dependent on EF, for example to maintain soil quality, pollination, pest control etc..
I recommend Tscharntke et al. 2005. Landscape perspective on agricultural intensification and biodiversity - ecosystem service management. Ecology Letters 8:857-874 Cheers, Fabrice On Feb 27, 2007, at 12:49 PM, Wayne Tyson wrote: > At 07:52 AM 2/24/2007, David Inouye wrote: >> The Ecological Society has a variety of fact sheets about ecological >> issues, including ecosystem services: >> http://esa.org/teaching_learning/factsheets.php > > > ESA has done an excellent job with this, particularly laudable for > its brevity. However, I couldn't help but notice an agricultural > monoculture in one of the photographs. > > Perhaps I am out of step, but I have long drawn what I consider a > crucial distinction between agriculture and horticulture > ("domestication" of other life-forms), which require human > intervention for support, and ecosystems, which do not. > > Would it be useful to include such a distinction? Or is the > distinction invalid? > > WT ***************************************************** Fabrice De Clerck PhD Landscape Ecologist/Ecologo de Paisaje Dept. Agricultura y Agroforesteria CATIE 7170, Turrialba, Costa Rica Email: [EMAIL PROTECTED] Phone: (506) 558-2596 Fax: (506) 558-2046 Web: www.catie.ac.cr Adjunct Associate Tropical Agriculture Program The Earth Institute at Columbia University Email: [EMAIL PROTECTED] Skype: fadeclerck Web:www.earthinstitute.columbia.edu/mvp/ ******************************************************* "Everything not given is lost"