Temperature (latitude) and nutrient (seabird guano) effects on limno-terrestrial Tardigrada (Testechiniscus spitsbergensis and Pilatobius recamieri) body size

Figures & data

Table 1. Significance (p) values of Hochberg’s GT2 post-hoc test for differences in Testechiniscus spitsbergensis body length between different localities. In Pilatobius recamieri all differences between localities were statistically not significant.

		NI	Tat	Sco	Tro	SvB	SvH
Locality	Latitude (°N)	45	49	57	69	74	77
Tat	49	0.001
Sco	57	n/s	0.006
Tro	69	< 0.001	n/s	< 0.001
SvB	74	n/s	n/s	n/s	n/s
SvH	77	n/s	0.014	n/s	0.001	n/s
SvN	80	n/s	n/s	n/s	n/s	n/s	n/s

Figure 1. Map with sampling locations for (a) Testechiniscus spitsbergensis and (b) Pilatobius recamieri.

Figure 2. Tardigrada: (a) Testechiniscus spitsbergensis (under PCM); (b) Pilatobius recamieri (under DIC). The main white axis indicates body length used in measurements. The scale bars are in μm.

Figure 3. Mean values (± 0.95 CI) of Testechiniscus spitsbergensis body length in seven analysed localities. Numbers above the bars indicate sample size.

Figure 4. Mean (± 0.95 CI) body length of Pilatobius recamieri in three localities on Svalbard. Sample size indicated above the bars.