Listeria is a food-borne bacterial pathogen has on its surface a protein ActA, which mimics an NPF that efficiently activates the Arp2/3 complex.

TLS Online TPP Program

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#Unit 10. Ecological Principles

Introduced species A species that is introduced to a region of the world where it has not historically existed. Also known as Exotic species or Non-native species

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#Id: 9106

#Unit 10. Ecological Principles

Invasive species An introduced species that spreads rapidly and has negative effects on other species, human recreation, or human economies. 

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#Id: 9107

#Unit 10. Ecological Principles

Two levels of predators often exist in ecological communities:

Mesopredators Relatively small carnivores that consume herbivores. 

Top predators Predators that typically consume both herbivores and mesopredators. 

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#Id: 9108

#Unit 10. Ecological Principles

Antipredator Adaptations

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#Id: 9109

#Unit 10. Ecological Principles

Prey defenses used against predators

TLS Online TPP Program

#Id: 9110

#Unit 10. Ecological Principles

Predator-Prey Interactions

Models of predation need to consider predator effect on prey populations, and prey effects on predator population.

Also need to consider the time spent searching, subduing and consuming prey