Ekologian perusteita

Ra­vin­to­verk­ko; By La­dyof­Hats, via Wi­ki­me­dia Com­mon; CC0 1.0 Uni­ver­sal Pub­lic Do­main De­di­ca­ti­ons

Nettilähteitä suomeksi

• | YLE | :: Kou­lu­port­ti :: Eko­lo­ke­ro
• Ra­vin­to­ket­ju (Hot­Po­ta­to­es-teh­tä­viä)
• Ra­vin­to­ket­jut ja tro­fi­a­ta­sot
• Poh­joi­sen luon­to: Ter­ve­tu­loa eko­lo­gi­an pa­riin!

Englanniksi

• Ge­ne­ral&Hu­man Bi­o­lo­gy:Eco­lo­gy
• Ge­ne­ral&Hu­man Bi­o­lo­gy:Eco­lo­gy; Na­tu­ral His­to­ry
• Ge­ne­ral & Hu­man Bi­o­lo­gy: Eco­lo­gy; Com­mu­ni­ties
• Ge­ne­ral & Hu­man Bi­o­lo­gy: Eco­lo­gy; Eco­sys­tems
• Ge­ne­ral & Hu­man Bi­o­lo­gy: Eco­lo­gy; Bi­osp­he­re
• Ge­ne­ral & Hu­man Bi­o­lo­gy: Eco­lo­gy; Hu­man Im­pact
• hig­he­red.mcgraw-hill.com: Dy­na­mics of Eco­sys­tems
• Eco­lo­gy.com – An Eco­lo­gi­cal Sour­ce of In­for­ma­ti­on
• World Re­sour­ces Ins­ti­tu­te
• Inst­ruc­ti­o­nal Mul­ti­me­dia, Uni­ver­si­ty of Al­ber­ta
• Scien­ce­Dai­ly (Dec. 9, 2008); Mo­ve­ment Eco­lo­gy
• Uni­ted Na­ti­ons En­vi­ron­ment Prog­ram­me (UNEP) – Home page 
• Scien­ce­Dai­ly (Apr. 13, 2010); Move over pre­da­tors: Plants can cont­rol the food chain too — from the bot­tom

OpenStax; Biology

• 44.1 The Scope of Ecology
  • Figure 1. Ecologists study within several biological levels of organization