Biodiversity and Conservation
A forest is more than its trees. It is a store of genes, species and habitats that took millions of years to form, and that people are losing fast. This chapter asks three questions. What is biodiversity, and where is it richest? Why are species being lost, and why does it matter? And what can we do to save what is left? Python fits the species-area line and counts the species that a lost habitat takes with it. It covers the unit of the Indian syllabus (NCERT, NEET) and the matching topics of A-Level, IB and AP Biology.
Part of Biology · High School (11–12) (chapter 31)
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Kinds and Patterns of Biodiversity
What biodiversity is and how it is counted. The three levels, the number of species on the Earth, the rise of diversity towards the tropics, and the species-area line, which Python fits to a table of model data.
The Loss of Biodiversity
How fast species are disappearing, and why. The mass extinctions, the four causes that ecologists call the evil quartet, and the reasons that biodiversity is worth keeping, from medicines to the right of every species to live.