Biodiversity Exploratories Information System


CC-BY-NC Dataset Public since: 2019-08-20 DOI since: 2020-02-27 Prototype Arthropod data from 150 grassland plots, 2008-2017, and 140 forest plots, 2008-2016, used in "Arthropod decline in grasslands and forests is associated with drivers at landscape level", Nature

DOI: https://doi.org/10.25829/bexis.25786-1.3.11
Citation: Seibold, Sebastian; Martin Goßner; Nadja Simons; Nico Blüthgen; Jörg Müller; Didem Ambarli; Christian Ammer; Juergen Bauhus; Markus Fischer; Cornelia Fürstenau; Jan C. Habel; Karl Eduard Linsenmair; Thomas Nauss; Andreas Ostrowski; Caterina Penone; Daniel Prati; Peter Schall; Ernst-Detlef Schulze; Juliane Vogt; Stephan Wöllauer; Wolfgang Weisser (2020): Arthropod data from 150 grassland plots, 2008-2017, and 140 forest plots, 2008-2016, used in "Arthropod decline in grasslands and forests is associated with drivers at landscape level", Nature. v1.3.11. Biodiversity Exploratories Information System. Dataset. https://doi.org/10.25829/bexis.25786-1.3.11




general

id 25786
versionID 1.3.11
title Arthropod data from 150 grassland plots, 2008-2017, and 140 forest plots, 2008-2016, used in "Arthropod decline in grasslands and forests is associated with drivers at landscape level", Nature
owners
owner1 Sebastian Seibold
owner2 Martin Goßner
owner3 Nadja Simons
owner4 Nico Blüthgen
owner5 Jörg Müller
owner6 Didem Ambarli
owner7 Christian Ammer
owner8 Juergen Bauhus
owner9 Markus Fischer
owner10 Cornelia Fürstenau
owner11 Jan C. Habel
owner12 Karl Eduard Linsenmair
owner13 Thomas Nauss
owner14 Andreas Ostrowski
owner15 Caterina Penone
owner16 Daniel Prati
owner17 Peter Schall
owner18 Ernst-Detlef Schulze
owner19 Juliane Vogt
owner20 Stephan Wöllauer
owner21 Wolfgang Weisser
projectName Arthropods (core)
datasetManager
datasetManagerName Wolfgang Weisser
institute Technical University of Munich
email wolfgang.weisser@tum.de

researchObjects

approxNumberOfPlots
noOfGP 290
noOfEP 290
noOfMIP 149
noOfVIP 57
habitats
grassland yes
forest yes
experimentalManipulation no
relativePositionToGround
aboveGround yes
belowGround no
repeatedMeasurement
timeBasedRepetition
numberOfRepetitions 10
plotBasedRepetition
numberOfSubPlots 1
taxa
taxon1 Animals - Invertebrates
processesAndServices
processOrService1 None
environmentalDescriptors
environmentalDescriptor1 Land Use
environmentalDescriptor2 Climate
bioticDataTypes
bioticDataType1 Total Abundances
bioticDataType2 Aggregated Diversity
bioticDataType3 Morphological

methodology

introduction To disentangle local and landscape-level effects of land use on the temporal trends of arthropod communities in grasslands and forests, arthropod data were collected annually during the growing period from 2008 to 2017 by standardized sampling at 150 grassland plots and from 2008 to 2016 at 30 forest plots. An additional 118 forest plots were sampled in 2008, 2011 and 2014 to test the overall trend across a larger number of plots. Both grassland and forest plots cover gradients in local land-use intensity. Land-use intensity was quantified in the form of compound indices based on grazing, mowing and fertilization intensity in grasslands (LUI), and on recent biomass removal, the proportion of non-native tree species and deadwood origin in forests (ForMI). To analyze landscape-level effects, we quantified the cover of arable fields and grassland within 1500m radius around each sampling plot (based on ATKIS DLM). We modelled temporal trends in biomass, abundance and species number of arthropods and of different dispersal and trophic guilds separately for grasslands and forests, and tested for effects of local and landscape-scale land-use intensity on these trends, accounting for weather conditions and different spatial scales.
measurements
theory The sample unit is the arthropod community of a grassland or forest plot within a given year. It is characterized by measures of biomass, abundance and species number. A sample unit is considered to represent arthropod populations at our study sites which measured 50m x 50m in grasslands and 100m x 100m in forests. Data from different months and traps per plot were pooled per plot and year.
type Grassland: arthropod density along a 150m transect
Forest: activity density of arthropods per plot
equipment
instruments Grassland: sweep net
Forest: flight interception trap
calibration -
procedures Grassland: All arthropods of the herb layer were sampled twice per year in June and August to represent different phenological windows within the peak season of adult arthropod activity. Based on monthly samplings at the beginning of the study, we identified these two months to represent the best trade-off between reducing sampling effort and covering most species. Arthropods were sampled by sweep netting along a 150-m long transect comprising three of the virtual borders of a site by conducting 60 double sweeps per site. Sweep netting was only conducted on days without rain, low wind speed and after morning dew had dried.
Forest: Flying insects were sampled using two flight-interception traps per site located close to two randomly selected corners of each site. Traps consisted of two crossed transparent plastic shields (40 cm x 60 cm) with funnels opening into sampling jars below and above that were filled with 3% CuSO4 solution and a drop of detergent. Traps were operated from March to October and emptied monthly.

All samples were sorted to order level in the lab and all groups for which taxonomists were available were identified to species level: grasslands – Araneae, Coleoptera, Hemiptera (Heteroptera and Auchenorrhyncha), Orthoptera; forests – Coleoptera, Hemiptera (Heteroptera).

description

acronyms
acronymPair1
acronym1
meaning1
keywords
keyword1 insect decline
keyword2 arthropod
keyword3 time series

time

when
format yyyy
startDate 2008
endDate 2017
dateEntry 2019-08-14
dateLastModified 2020-02-26

data

fileType structuredData
manipulations
errors
qualityLevel validated
dataStatus complete
dataStructure
dataFormat
missingValues
NA
matrix
columnName
rowName
contentType
matrixUnit
variables
name typeOfVariable units description block
1 Habitat_type string forest or grassland 0
2 Sampling_regime string specifies if data belongs to the annual times series or to the time series with three year intervals (forest) 0
3 PlotIDYear string specifies the plot name and year of collection 0
4 Exploratory string specifies Region: Alb, Hainich, Schorfheide 0
5 PlotID string number of plot 0
6 CollectionYear integerNumber year of sampling 0
7 biomass realNumber mg biomass of all identified arthropods 0
8 abundance_unidentified_identified integerNumber abundance of all arthropods including those which could not be identified to species level 0
9 abundance_identified integerNumber abundance of all arthropod identified to species level 0
10 species integerNumber total number of arthropod species 0
11 abundance_carnivore integerNumber abundance of carnivore arthropods 0
12 species_carnivore integerNumber number of carnivore arthropod species 0
13 biomass_carnivore realNumber mg biomass of carnivore arthropods 0
14 abundance_herbivore integerNumber abundance of herbivore arthropods 0
15 species_herbivore integerNumber number of herbivore arthropod species 0
16 biomass_herbivore realNumber mg biomass of herbivore arthropod species 0
17 abundance_detritomycetophage integerNumber abundance of detriomycetophore arthropods 0
18 species_detritomycetophage integerNumber species number of detriomycetophore arthropods 0
19 biomass_detritomycetophage realNumber mg biomass of of detriomycetophore arthropods 0
20 abundance_omnivore integerNumber abundance of omnivore arthropods 0
21 species_omnivore integerNumber species number of omnivore arthropods 0
22 biomass_omnivore realNumber mg biomass of omnivore arthropods 0
23 abundance_weak_disperser integerNumber abundance of weak disperser 0
24 species_weak_disperser integerNumber species number of weak disperser 0
25 biomass_weak_disperser realNumber mg biomass of weak disperser 0
26 abundance_strong_disperser integerNumber abundance of strong disperser 0
27 species_strong_disperser integerNumber species number of strong disperser 0
28 biomass_strong_disperser realNumber mg biomass of strong disperser 0
29 landuse_intensity realNumber landuse intensity: LUI in grasslands and ForMI in forests 0
30 mean_winter_temperature realNumber °C mean temperature for winter months (Nov-Feb) as derived from plot weather stations with gap filling from neighbouring stations and DWD stations 0
31 precipitation_sum_growing_preriod realNumber mm precipitation sum for months of the growing season (Mar-Oct) derived from the RADOLAN product of the German Weather Service 0
32 grassland_cover_250 realNumber % percentage cover of grassland and semi-natural vegetation within 250m surrounding a plot based on ATKIS DLM 2010 0
33 grassland_cover_500 realNumber % percentage cover of grassland and semi-natural vegetation within 500m surrounding a plot based on ATKIS DLM 2010 0
34 grassland_cover_1000 realNumber % percentage cover of grassland and semi-natural vegetation within 1000m surrounding a plot based on ATKIS DLM 2010 0
35 grassland_cover_1500 realNumber % percentage cover of grassland and semi-natural vegetation within 1500m surrounding a plot based on ATKIS DLM 2010 0
36 arable_cover_1000 realNumber % percentage cover of arable crops within 1000m surrounding a plot based on ATKIS DLM 2010 0
37 arable_cover_1500 realNumber % percentage cover of arable crops within 1500m surrounding a plot based on ATKIS DLM 2010 0
38 arable_cover_250 realNumber % percentage cover of arable crops within 250m surrounding a plot based on ATKIS DLM 2010 0
39 arable_cover_500 realNumber % percentage cover of arable crops within 500m surrounding a plot based on ATKIS DLM 2010 0

references

database
papers
paper1 Seibold et al. Arthropod decline in grasslands and forests is associated with drivers at landscape level (2019) Nature, 574, 671-674. https://doi.org/10.1038/s41586-019-1684-3
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citation Seibold, Sebastian; Martin Goßner; Nadja Simons; Nico Blüthgen; Jörg Müller; Didem Ambarli; Christian Ammer; Juergen Bauhus; Markus Fischer; Cornelia Fürstenau; Jan C. Habel; Karl Eduard Linsenmair; Thomas Nauss; Andreas Ostrowski; Caterina Penone; Daniel Prati; Peter Schall; Ernst-Detlef Schulze; Juliane Vogt; Stephan Wöllauer; Wolfgang Weisser (2020): Arthropod data from 150 grassland plots, 2008-2017, and 140 forest plots, 2008-2016, used in "Arthropod decline in grasslands and forests is associated with drivers at landscape level", Nature. v1.3.11. Biodiversity Exploratories Information System. Dataset. https://doi.org/10.25829/bexis.25786-1.3.11

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