Interspecific Interactions

Question 1

Commensalism

Answer 1

Symbiotic relationship where one organism benefits while the other is either helped or harmed.

Question 2

Example for commensalism

Answer 2

Dung beetle (Geotrupes stercorarius)

Question 3

Example for mutualism

Answer 3

White clover (Trifoium repens) fixes nitrogen through rhizobium bacteria.

Question 4

Bumblee

Answer 4

Bombus lucorum

Question 5

Heather

Answer 5

Calluna vulgaris

Question 6

Biodiversity Ecosystem Function BEF

Answer 6

Describes how biological biodiversity influences the productivity of the area.

Question 7

Competitive Exclusion Principle

Answer 7

Gause (1930) stated that for two species competing for identical resources, they cannot coexist indefinitely in the same ecological niche.

Question 8

Types of CEP

Answer 8

Resource partitioning and character displacement.

Question 9

Example for resource partitioning

Answer 9

Irish hares and European rabbit competed for same food resources, hares adapted to survive on less nutrient dense vegetation and forage or non-vegetative foods.

Question 10

Example for character displacement

Answer 10

Brown trout and arctic char compete for grubs and larvae in Irish lakes, so trout now inhabit shallow water and char inhabit deeper sections.

Question 11

Brown trout and arctic char

Answer 11

Salmo trutta and Salvelinus alpinus