Chapter 19: Species Diversity in Communities Flashcards
Species supply filter from regional species pool toward local community
dispersal and immigration
Abiotic filter from regional species pool toward local community
environmental conditions
Biotic filter from regional species pool toward local community
species interactions
Significant contributor to invasive species dispersal
Ballast water
Factors affecting species dispersal like temperature and precipitation
Environmental conditions
Factors affecting species dispersal like competition and mutualism
Species interactions
Interactions between native and non-native species that prevent establishment of non-native species
Biotic resistance
Granivores (birds) eat enough seeds of medusa head grass to stop it from invading
Biotic resistance example
T/F Some species like the lucerne seed web moth caterpillars can slow but don’t completely stop the spreading of invasive species
True… I dropped a specific name of a moth obviously it’s true
Can alter the ability of invasive species to pass through the 3 filters into communities
Climate change
Difference in pathways and difference in environmental constraints for invasive species
Direct consequences of climate change
Transportation, colonization, establishment, spread
Invasion pathway
Differences in distributions, impacts, and management effectiveness (of invasive species in a community)
Indirect consequences
Natural selection drives competing species to use a limited resource in different ways
Resource partitioning
What effect does resource partitioning have on competition and species diversity
Reduces competition and increases species diversity