Farbgrafik mit englischer Beschriftung
gemeinfrei
http://de.wikipedia.org/wiki/Gemeinfreiheit?uselang=de
Farbfoto
CC BY-Don Graham SA 2.0
http://creativecommons.org/licenses/by-sa/2.0/deed.de
Farbfoto
(CC BY Ingrid Taylar 2.0)
http://creativecommons.org/licenses/by/2.0/deed.de
Farbfoto: Männliche Stockente
CC BY-Fizykaa SA 3.0)
http://creativecommons.org/licenses/by-sa/3.0/deed.en
Farbfoto
CC BY-Sten SA 3.0
http://creativecommons.org/licenses/by-sa/3.0/deed.de
Two habitats meet in this picture: one under the water and on on the bough. This picture shows an ecotone. Salten Langsø, Jutland
Farbfoto
CC BY Highways Agency 2.0
http://creativecommons.org/licenses/by/2.0/deed.de
Photos from this set are stock images related to Wildlife Protection and Environmental Workers. Photos have been taken nationwide in September and October 2006 as part of the summer 2006 stock project.
Farbfotoserie
(CC BY-baerchen57 NC-SA 2.0
http://creativecommons.org/licenses/by-nc-sa/2.0/deed.de
Farbgrafik
public domain
http://en.wikipedia.org/wiki/Public_domain