Predator-Prey Cycles
Keystone Species
Ecological Research
Scientific Discoveries
100

What animal regulates sea urchins, in turn protecting kelp forests? 

What is the sea otter

100

Bob Paine coined this term for species that disproportionately affect ecosystems?

What is a keystone species

100

Which scientist studied competition between barnacles in the intertidal zone?

Who is Joseph Connell

100

This scientist worked with wild dogs to restore the ecosystem in East Africa

Paola Bouley

200

In the Serengeti, what large herbivore controls grassland ecosystems?

What is the wildebeest

200

What keystone species did Jim Estes discover

What is a sea otter

200

Who demonstrated that predators regulate prey populations in tropical forests

Who is John Terborgh

200
Who showed how predators like starfish prevent the monopolization of resources?

Who is Robert Paine

300

These predators regulate hare populations in Canadian food webs?

What is the lynx

300

What is the keystone species in the Serengeti's population?

What is a wildebeest

300

These two factors were studied by Krebs in the snowshoe hare cycle

What are food and predation

300

What are three tropical-level interactions in the "Impact of Food..." paper

What are plants (grass), herbivores (hares), and predators (mammals, avians, and reptiles)

400

What is the relationship between Lynx and Snowshoe hares?

What is asymmetrical relationship

400

What is the term where one species affects another by  interfering?

What is interspecific competition  

400

What are the three causes of reproduction collapse for all experimental groups?

What are food limitations, changing habits to low-nutrition areas, psychological hindrances

400
What research explored how competition for space among barnacle species in intertidal zones leads to niche differentiation which influences survival and distribution

What is the study of barnacle competition and spatial ecology