Most (but not all) physical books on biodiversity are located in the Science Library. Use the Library's search box to find specific call letters (for the location of the book in the stacks). You can also find eBooks using the search box.
For general browsing, try this call letter range:QH 541
This five-volume online reference work provides a global synthesis of biomes. Chapters follow a thematic order that spans biodiversity importance, principal anthropogenic stressors and trends, changing climatic conditions, and conservation strategies for maintaining biomes in an increasingly human-dominated world.