"Human geography and ecological sociology: the unfolding of human ecology, 1890 to 1930 — and beyond"
Proceedings of the Royal Society B
"Evolution, population thinking, and essentialism"
تعريف علم البيئة النباتية
Berlin, Germany : Georg Reimer.
سلوك الحيوان
"Energy flow in ecosystems: A historical review"
مدونة عبدالعزيز القثامي
" By "ecology" we understand the comprehensive science of the relationships of the organism to its surrounding environment, where we can include, in the broader sense, all "conditions of existence"