Table 5. Top ten research categories under-represented in the CS compared to UE literature for birds and butterflies, ranked by the difference between z-scores for UE and CS respectively.

	Birds		Butterflies
Rank	Category	ZUE−ZCS	Category	ZUE−ZCS
1	Environment: micro	3.39	Environment: meso	4.21
2	Environment: meso	2.41	Habitat fragmentation: effects	1.23
3	Environment: seasonality	1.10	Environment: seasonality	0.73
4	Breeding: macro	1.04	Analysis: adaptive guilds	0.70
5	Behaviour: foraging	0.96	Environment: micro	0.63
6	Behaviour: diet	0.64	Autecology: urbanisation	0.48
7	Human impacts: physical disturbance	0.52	Behaviour: foraging	0.48
8	Behaviour: flight initiation distance	0.44	Human impacts: physical disturbance	0.48
9	Habitat fragmentation: effects	0.42	Movement: foraging	0.48
10	Behaviour: competition	0.39	Multi-taxa: surrogates	0.48