Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Steinwandter, Michael; Jäger, Stefanie; Schlick-Steiner, Birgit C; Steiner, Florian M; Seeber, Julia (2019): Raw data from: Low-quality dwarf-shrub litter negatively affects the fitness of Alpine earthworms (Lumbricus rubellus Hoffmeister, 1843; Oligochaeta: Lumbricidae). PANGAEA, https://doi.org/10.1594/PANGAEA.900926, Supplement to: Steinwandter, M et al. (2019): Low-quality dwarf-shrub litter negatively affects the fitness of Alpine earthworms (Lumbricus rubellus Hoffmeister, 1843; Oligochaeta: Lumbricidae). Applied Soil Ecology, 139, 79-84, https://doi.org/10.1016/j.apsoil.2019.03.013

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Alpine pastureland is increasingly abandoned, leading to shrub encroachment and to the accumulation of low-quality litter. Alpine key decomposers such as earthworms were found to feed on both low- and high-quality litter, but little is known how this might affect their life history traits. To fill this gap of knowledge, we conducted a laboratory experiment with the widespread earthworm species Lumbricus rubellus Hoffmeister, 1843. Hatchlings were provided with either of three aged litter types: grass and forb leaf litter as high-quality food sources and dwarf shrub leaves as low-quality food source. A control group was fed with aged cow dung. Biomass, days until (pre-)maturity, mortality, and reproduction rate were measured regularly to assess the impacts of food quality on earthworm development. We found pronounced impacts of food source quality on the fitness of L. rubellus. The low-quality litter led to significantly delayed development of up to 53 days, the lowest mean biomass (720 mg after 32 weeks) as well as a 50% drop of produced cocoons compared with the high-quality litter. However, the F2 generation showed the highest hatchling success in the shrub treatment. We conclude that the increased consumption of low-quality dwarf shrub litter led to negative effects on the development and reproduction of L. rubellus. Overall, this might be the main reason for declining earthworm densities in abandoned Alpine pasture soils, even though the biomass of the second generation was not significantly affected possibly due to a phenotypic variability in reproduction strategy. However, the decrease of such important decomposers and ecosystem engineers can have far reaching consequences for ecosystem processes such as litter accumulation and bioturbation and thus for the stability of Alpine soil ecosystems.
Keyword(s):
Cocoon production; Life history traits; Maturity; Survival rate
Coverage:
Latitude: 47.126000 * Longitude: 11.290900
Minimum Elevation: 2000.0 m * Maximum Elevation: 2000.0 m
Event(s):
Kaserstattalm * Latitude: 47.126000 * Longitude: 11.290900 * Elevation: 2000.0 m * Location: Tyrolian Alps, Austria * Method/Device: Multiple investigations (MULT) * Comment: Alpine Long-Term Ecological Research (LTER) area "Kaserstattalm" (Central Alps, Tyrol, Austria; site code LTER_EU_AT_015)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample IDSample IDSteinwandter, Michael
2DescriptionDescriptionSteinwandter, MichaelGeneration
3TreatmentTreatSteinwandter, MichaelCONTROL (aged cow dung), SHRUB_Vv (Vaccinium vitis-idaea), GRASS_Dg (Dactlyis glomerata), FORB_Gs (Geranium sylvaticum)
4TraitTraitSteinwandter, MichaelLife-history trait
5UnitUnitSteinwandter, Michael
6Experiment weekExp weekSteinwandter, MichaelWeek 0
7Experiment weekExp weekSteinwandter, MichaelWeek 1
8Experiment weekExp weekSteinwandter, MichaelWeek 2
9Experiment weekExp weekSteinwandter, MichaelWeek 3
10Experiment weekExp weekSteinwandter, MichaelWeek 4
11Experiment weekExp weekSteinwandter, MichaelWeek 6
12Experiment weekExp weekSteinwandter, MichaelWeek 8
13Experiment weekExp weekSteinwandter, MichaelWeek 10
14Experiment weekExp weekSteinwandter, MichaelWeek 12
15Experiment weekExp weekSteinwandter, MichaelWeek 14
16Experiment weekExp weekSteinwandter, MichaelWeek 16
17Experiment weekExp weekSteinwandter, MichaelWeek 18
18Experiment weekExp weekSteinwandter, MichaelWeek 20
19Experiment weekExp weekSteinwandter, MichaelWeek 22
20Experiment weekExp weekSteinwandter, MichaelWeek 24
21Experiment weekExp weekSteinwandter, MichaelWeek 26
22Experiment weekExp weekSteinwandter, MichaelWeek 28
23Experiment weekExp weekSteinwandter, MichaelWeek 30
24Experiment weekExp weekSteinwandter, MichaelWeek 32
25Experiment weekExp weekSteinwandter, MichaelWeek 34
26Experiment weekExp weekSteinwandter, MichaelWeek 36
27Experiment weekExp weekSteinwandter, MichaelWeek 38
28Experiment weekExp weekSteinwandter, MichaelWeek 40
29Experiment weekExp weekSteinwandter, MichaelWeek 42
30Experiment weekExp weekSteinwandter, MichaelWeek 44
Size:
3192 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML (shows only first 2000 rows)