How does speciation contribute to species diversity? What is the role of extinction in shaping species diversity?

“Species diversity is defined as the number of different species present in an ecosystem and relative abundance of each of those species.” Diversity is greatest ... Jan 11, 2021 ... Reports of declines in biomass of flying insects have alarmed the world in recent years. However, how biomass declines reflect biodiversity ... Feb 21, 2018 ... The idea that species diversity decreases as you move into higher elevations — after a potential peak at middle elevations — is one of the most ... Nov 1, 1974 ... Species Distribution Models: Ecological Explanation and Prediction Across Space and Time Jane Elith, and John R. Leathwick Vol. 40 (2009), pp. 677–697 Why do different oceanic archipelagos harbour contrasting levels of species diversity? The macaronesian endemic genus Pericallis (Asteraceae) provides ... Longleaf pine forests cover a variety of different habitat types (mountains, rolling hills, sandhills, and flatwoods). Tree-volume and forest age increase bat species diversity in boreal urban landscape ... species richness of bats across this region. We used Hierarchical ... Biodiversity assessment for tree species was conducted in three forest fragments ofthe Taita Hills, southeastern Kenya to compare species diversity between ... Jun 11, 2007 ... Theoretical analyses and experimental studies of synthesized assemblages indicate that under particular circumstances species diversity can ... Eric Pianka's 1966 article “Latitudinal Gradients in Species Diversity: A Review of Concepts” is emblematic of the creative energy at work during this era.