Uploaded August 2023 | Updated September 2026, 9 hours ago

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You can find all my A Level Biology videos fully indexed at freesciencelessons.co.uk/a-level-revision-videos/a-level-biology

In this video, we look at methods of maintaining biodiversity. These include in situ methods such as wildlife reserves and marine conservation areas as well as ex situ methods such as captive breeding programs in zoos, botanical gardens and seed banks. We also look at local and international agreements on biodiversity.

Image credits:

Eastern Chimpanzee
commons.wikimedia.org/wiki/File:Gombe_Stream_NP_Mutter_und_Kind.jpg
Ikiwaner, GFDL 1.2 gnu.org/licenses/old-licenses/fdl-1.2.html, via Wikimedia Commons

Bee
commons.wikimedia.org/wiki/File:Bee_Collecting_Pollen_2004-08-14.jpg
Jon Sullivan, Public domain, via Wikimedia Commons

Blue poison dart frog
commons.wikimedia.org/wiki/File:Dendrobates_azureus_(Dendrobates_tinctorius)_Edit.jpg
Michael Gäbler, CC BY 3.0 creativecommons.org/licenses/by/3.0, via Wikimedia Commons

Sunrise Ridge
commons.wikimedia.org/wiki/File:Sunrise_Ridge_(142983279).jpeg
Jason Knauer, CC BY 3.0 creativecommons.org/licenses/by/3.0, via Wikimedia Commons

Wildlife reserve
commons.wikimedia.org/wiki/File:Waterfall_in_Tabin_Wildlife_Reserve_(14839827559).jpg
Mike Prince from Bangalore, India, CC BY 2.0 creativecommons.org/licenses/by/2.0, via Wikimedia Commons

Borneo elephant
commons.wikimedia.org/wiki/File:Pygmy_Elephants_(Elephas_maximus_borneensis)_mother_and_baby_(8074148819).jpg
Bernard DUPONT from FRANCE, CC BY-SA 2.0 creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons

Banteng
commons.wikimedia.org/wiki/File:Banteng_Alas_Purwo_(face_cropped).jpg
Buyung Sukananda, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Woodland
commons.wikimedia.org/wiki/File:Pant-du_woodland,_N_Wales,_UK,_2021._(51210412231).jpg
Phlips photos, PDM-owner, via Wikimedia Commons

Moorland
commons.wikimedia.org/wiki/File:Heather_moorland_on_Urra_Moor_-_geograph.org.uk_-_4163610.jpg
Heather moorland on Urra Moor by Bill Boaden, CC BY-SA 2.0 creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons

Hawksbill Sea Turtle
commons.wikimedia.org/wiki/File:Eretmochelys-imbricata-K%C3%A9lonia-2.JPG
I, Thierry Caro, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0/, via Wikimedia Commons

Orangutan in zoo
commons.wikimedia.org/wiki/File:Sumatran_Orangutan_(Pongo_abelii)_at_Perth_Zoo,_February_2023_14.jpg
Calistemon, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Orangutan in wild
commons.wikimedia.org/wiki/File:Oranutan_2.jpg
Crystal Reidemann, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Endangered plant
commons.wikimedia.org/wiki/File:Wollemia_nobilis_(Kew_Gardens).JPG
Architeuthis Dux, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Wheat
commons.wikimedia.org/wiki/File:Vehn%C3%A4pelto_6.jpg
kallerna, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Wild grass
commons.wikimedia.org/wiki/File:Briza_media_-_keskmine_v%C3%A4rihein.jpg
Ivar Leidus, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Meadow
commons.wikimedia.org/wiki/File:Pentwyn_Farm_Meadow,_Penallt.jpg
Keith Moseley, CC BY-SA 2.0 creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons

African grey parrot
commons.wikimedia.org/wiki/File:Psittacus_erithacus_-upper_body-8c.jpg
L.Miguel Bugallo Sánchez (commons.wikimedia.org/wiki/User:Lmbuga), CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0/, via Wikimedia Commons

Manatees
commons.wikimedia.org/wiki/File:Mother_manatee_and_calf.jpg
Sam Farkas (NOAA Photo Library), CC BY 2.0 creativecommons.org/licenses/by/2.0, via Wikimedia Commons