Figure 1.
(a) Average daily carbon mineralization as affected by resource manipulation (control, reduced litter quality, glucose addition) and temperature (10, 15, 20°C), and (b) cumulative carbon mineralization during 34 weeks of incubation in the respective treatments. “ctr” = control (solid line), “−” = reduced litter quality (broken line), “+” = glucose addition (dashed line).
Figure 2.
Changes in the abundance of (a) adult oribatid mites (pooled for temperature and resource treatments, see text for details), and (b) juvenile oribatid mites at 10, 15 and 20°C (pooled for resource treatments).
Figure 3.
Abundance of oribatid mite subgroups.
Changes in density of ten oribatid mite subgroups (sorted by abundances; see Materials and Methods) as affected by resource manipulation (control, reduced litter quality, glucose addition) and temperature (10, 15, 20°C). Data for Circumdehiscentiae and Phthiracaridae were pooled for temperature and resource treatments (see text for details). Note different scales. “ctr” = control, “−” = reduced litter quality, “+” = glucose addition.
Table 1.
F- and P-values on the effect of time (2, 10, 20 and 44 weeks), temperature (temp; 10, 15, 20°C) and treatment (tr; control, reduced litter quality and glucose addition) of the density of ten pooled oribatid mite groups analyzed by repeated measures analysis of variance.
Figure 4.
Response of oribatid mite species.
Detrended correspondence analysis of oribatid mite species and subgroups (given in different colours; see small graph in figure) with sampling time included as supplementary variable not affecting the ordination (time 1 = 2 weeks, time 2 = 10 weeks, time 3 = 20 weeks, time 4 = 44 weeks). Bold names indicate sexual reproduction. Ache cole = Achipteria coleoptrata, Bank lanc = Banksinoma lanceata, Bern sigm = Berniella sigma, Brac berl = Brachychthonius berlesei, Brachych = Brachychthoniidae, Cara femo = Carabodes femoralis, Cara orna = Carabodes ornatus, Cult bicu = Cultroribula bicultrata, Diss orna = Disshorina ornata, Enio minu = Eniochthonius minutissimus, Galu lanc = Galumna lanceata, Lioc spec = Liochthonius sp., Mala grac = Malaconothrus gracilis, Medi subp = Medioppia subpectinata, Medi minu = Microppia minus, Minu semi = Minunthozetes semirufus, Nanh coro = Nanhermannia coronata, Nanh nana = Nanhermannia nana, Noth silv = Nothrus silvestris, Ophi tect = Ophidiotrichus tectus, Oppi nova = Oppiella nova, Orib tibi = Oribatula tibialis, Phthirac = Phthiracaridae, Rhys dupli = Rhysotritia duplicata, Sell hone = Sellnickochthonius honestus, Suct spec = Suctobelbella sp., Suct subc = Suctobelbella subcornigera, Suct subt = Suctobelbella subtrigona, Tect mino = Tectocepheus minor.
Figure 5.
Changes with time in the average number of eggs per female (including females without eggs) in control, reduced litter quality and glucose addition treatments at 10, 15 and 20°C in (a) parthenogenetic and (b) sexual oribatid mites.