biological diversity
Word family
- biologynounB1
- biologicaladjectiveB2
- diversitynounB2
- diverseadjectiveB2
- biodiversitynounC1
Synonym discussion
Sense: noun/1
All three point to the range of living things in a place, but they differ in register and scope. 'Biological diversity' is the full, slightly formal term, common in science reports, law, and policy documents such as international treaties. 'Biodiversity' is simply its shortened form; it is now the everyday word you see in newspapers, school books, and casual talk, so most speakers reach for it first. 'Species richness' is the narrowest of the three: it counts only how many different species share a habitat, ignoring how evenly they are spread or how their genes vary. 'Variety of life' is the plainest phrase, handy when writing for general readers who may not know the technical words. For example, a UN report might title a chapter 'Protecting Biological Diversity', a magazine would say 'biodiversity', and a survey might note 'high species richness on the reef'.
Common collocations
Nouns
- biological diversity hotspot
Phrases
- loss of biological diversity
- conservation of biological diversity
- rich in biological diversity
Prepositions
- biological diversity of
- biological diversity in
Etymology
The phrase joins two older words. 'Biological' grows from Greek 'bios', meaning life, plus '-logy', the study of something, and reached English through the science of biology. 'Diversity' comes from Latin 'diversus', literally turned in different directions, and entered English from Old French in the late Middle Ages. Scientists combined them in the second half of the twentieth century to name the full spread of life on Earth; the snappier blend 'biodiversity' appeared in the 1980s and soon overtook the longer form in everyday use.