A.4.2 Conservation of biodiversity - IB Biology SL NEW SYLLABUS First assessment 2025

IB Biology new syllabus (First assessment 2025)
Standard level (SL)
Theme A: Unity and Diversity
A.4: Ecosystems
A.4.2: Conservation of biodiversity

00:00 Intro
00:12 Biodiversity as the variety of life in all its forms, levels and combinations
01:55 Comparisons between current number of species on Earth and past levels of biodiversity
05:01 Causes of anthropogenic species extinction
06:24 Extinction of the North Island giant moas (Dinornis novaezealandiae)
07:15 Extinction of the Caribbean monk seals (Neomonachus tropicalis)
07:56 Causes of ecosystem loss: the dipterocarp forest
10:13 Evidence for a biodiversity crisis
12:20 Causes of the current biodiversity crisis
13:33 Need for several approaches to conservation of biodiversity
15:25 Selection of evolutionarily distinct and globally endangered species for conservation prioritization in the EDGE of Existence programme