Wright et al., 2009 (helping effort increases with relatedness in bell miners, but unrelated helpers still provide substantial care)

Question 1

Study examines nest … …, … sizes and … types delivered by breeding pairs and their helpers in the cooperatively breeding bell miner (bird).

Answer 1

visit rates, load, prey

Question 2

In this species males remain in their … colony while young females typically …, and helpers of both sexes often assist at multiple nests concurrently

Answer 2

natal, disperse

Question 3

Positive relationship between … … and … … per nest within colonies

Answer 3

genetic relatedness, helping effort

Question 4

No … diferences were detectable in any aspect of helping

Answer 4

sex

Question 5

Even …-… provided substantial aid

Answer 5

non-relatives