uid=HFR,o=lter,dc=ecoinformatics,dc=org
all
public
read
doi:10.6073/pasta/69ae41b988b0dc87bfd6f77e800b6c22
Red Wood-Ant Nests and Fault-Related Methane Micro-Seepage 2016
Gabriele
Berberich
https://orcid.org/0000-0003-2656-7622
Aaron
Ellison
https://orcid.org/0000-0003-4151-6081
Christian
Wöhler
Martin
Berberich
Researcher
Arne
Grumpe
Researcher
Adrian
Becker
Researcher
2023
English
We measured methane (CH4) and stable carbon isotope of methane (ẟ13C-CH4) concentrations in ambient air and within a red wood-ant (RWA; Formica polyctena) nest in the Neuwied Basin (Germany) using high-resolution in-situ sampling to detect microbial, thermogenic, and abiotic fault-related micro-seepage of CH4. Methane degassing from RWA nests was not synchronized with earth tides, nor was it influenced by micro-earthquake degassing or concomitantly measured RWA activity. Two ẟ13C-CH4 signatures were identified in nest gas: −69‰ and −37‰. The lower peak was attributed to microbial decomposition of organic matter within the RWA nest, in line with previous observations that RWA nests are hot-spots of microbial CH4. The higher peak has not been reported in previous studies. We attribute this peak to fault-related CH4 emissions moving via fault networks into the RWA nest, which could originate either from thermogenic or abiotic CH4 formation. Sources of these micro-seepages could be Devonian schists, iron-bearing “Klerf Schichten,” or overlapping micro-seepage of magmatic CH4 from the Eifel plume. Given the abundance of RWA nests on the landscape, their role as sources of microbial CH4 and biological indicators for abiotically-derived CH4 should be included in estimation of methane emissions that are contributing to climatic change.
ants
biogeochemistry
gas flux
isotopes
methane
LTER controlled vocabulary
primary production
populations
LTER core area
Harvard Forest
HFR
LTER
USA
HFR default
This dataset is released to the public under Creative Commons CC0 1.0 (No Rights Reserved). Please keep the dataset creators informed of any plans to use the dataset. Consultation with the original investigators is strongly encouraged. Publications and data products that make use of the dataset should include proper acknowledgement.
Creative Commons Zero v1.0 Universal
https://spdx.org/licenses/CC0-1.0.html
CC0-1.0
https://harvardforest.fas.harvard.edu/exist/apps/datasets/showData.html?id=hf305
Western Germany. Coordinates based on WGS84 datum.
+7.43955
+7.43955
+50.33976
+50.33976
318
318
meter
2016
2016
genus
Formica
species
rufa
red wood ant
species
polyctena
red wood ant
complete
Information Manager
Harvard Forest
324 North Main Street
Petersham
MA
01366
USA
(978) 724-3302
hf-im@lists.fas.harvard.edu
Harvard Forest
324 North Main Street
Petersham
MA
01366
USA
(978) 724-3302
(978) 724-3595
https://harvardforest.fas.harvard.edu
For details of methods, please see: Berberich, G.M., Ellison, A.M., Berberich, M.B., Grumpe, A., Becker, A., Wöhler, C. 2018. Can a Red Wood-Ant Nest Be Associated with Fault-Related CH4 Micro-Seepage? A Case Study from Continuous Short-Term In-Situ Sampling. Animals 2018, 8, 46; doi:10.3390/ani8040046.
Harvard Forest Long-Term Ecological Research
Harvard Forest
324 North Main Street
Petersham
MA
01366
USA
(978) 724-3302
(978) 724-3595
https://harvardforest.fas.harvard.edu
https://ror.org/059cpzx98
pointOfContact
The Harvard Forest Long-Term Ecological Research (LTER) program examines ecological dynamics in the New England region resulting from natural disturbances, environmental change, and human impacts.
National Science Foundation LTER grants: DEB-8811764, DEB-9411975, DEB-0080592, DEB-0620443, DEB-1237491, DEB-1832210.
hf305-01-ant-med-filt.csv
RWA activity
hf305-01-ant-med-filt.csv
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https://harvardforest.fas.harvard.edu/data/p30/hf305/hf305-01-ant-med-filt.csv
datetime
date and time
YYYY-MM-DDThh:mm:ss
1 second
NA
missing value
datetime.matlab
date and time in Matlab format
number
0.0001
real
NA
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med.filt
median filtered RWA activity data, relative values calculated from results
of image processing, data frame every 5 mins; there is some data loss for 4.8.
(NA)
number
0.000000001
real
NA
missing value
2304
hf305-02-ch4-atm15.csv
CH4 in atmosphere, 15 minute measurement
hf305-02-ch4-atm15.csv
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705714b1d49fa074908e704045f257b8
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https://harvardforest.fas.harvard.edu/data/p30/hf305/hf305-02-ch4-atm15.csv
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date and time
YYYY-MM-DDThh:mm:ss
1 second
NA
missing value
ch4
CH4 concentration in atmosphere
dimensionless
0.001
real
NA
missing value
ich4.raw
delta 13C of CH4 in atmosphere near of nest original raw data during
measurement period of 15 min generated by Picarro
dimensionless
0.001
real
NA
missing value
std.ch4
standard deviation for CH4
dimensionless
0.001
real
NA
missing value
std.ich4
standard deviation for delta 13C of CH4
dimensionless
0.001
real
NA
missing value
27
hf305-03-ch4-atm4.csv
CH4 in atmosphere, 4 hour measurement
hf305-03-ch4-atm4.csv
518223
afe183d584f0bd5a0fea282230efca34
1
\r\n
column
,
https://harvardforest.fas.harvard.edu/data/p30/hf305/hf305-03-ch4-atm4.csv
datetime
date and time
YYYY-MM-DDThh:mm:ss
1 second
NA
missing value
ch4
CH4 concentration in atmosphere
dimensionless
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real
NA
missing value
hp.delta.ich4.raw
delta 13C of CH4 in ant nest original raw data generated by Picarro
system
dimensionless
0.001
real
NA
missing value
hp.delta.ich4.5min
delta 13C of CH4 in ant nest automatically averaged to 5 min data by
Picarro system
dimensionless
0.001
real
NA
missing value
12157
hf305-04-ch4-nest.csv
CH4 concentration in nest
hf305-04-ch4-nest.csv
20433899
adbd7349fd422ed218f41e02cef93628
1
\r\n
column
,
https://harvardforest.fas.harvard.edu/data/p30/hf305/hf305-04-ch4-nest.csv
datetime
date and time
YYYY-MM-DDThh:mm:ss
1 second
NA
missing value
ch4
CH4 concentration in ant nest
dimensionless
0.001
real
NA
missing value
hp.delta.ich4.5min
delta 13C of CH4 in ant nest automatically averaged to 5 min data by
Picarro system
dimensionless
0.001
real
NA
missing value
hp.delta.ich4.raw
delta 13C of CH4 in ant nest original raw data generated by Picarro
system
dimensionless
0.001
real
NA
missing value
478984
hf305-05-earthquakes.csv
earthquakes
hf305-05-earthquakes.csv
501
ff6c9fbd53e99fcfcfc0ac8fcbd799e8
1
\r\n
column
,
https://harvardforest.fas.harvard.edu/data/p30/hf305/hf305-05-earthquakes.csv
datetime
date and time
YYYY-MM-DDThh:mm:ss
1 second
NA
missing value
datetime.matlab
date and time in Matlab format (UTC)
number
0.0001
real
NA
missing value
location
earthquake location
earthquake location
NA
missing value
ml
magnitude
number
0.1
real
NA
missing value
depth
depth
kilometer
0.1
real
NA
missing value
x
x-coordinate in GK
dimensionless
1
natural
NA
missing value
y
y coordinate in GK
dimensionless
1
natural
NA
missing value
6
hf305-06-earthtides.csv
earthtides
hf305-06-earthtides.csv
780689
15259a2412f55d6ce9e5f57255ea33d9
1
\r\n
column
,
https://harvardforest.fas.harvard.edu/data/p30/hf305/hf305-06-earthtides.csv
datetime
date and time
YYYY-MM-DDThh:mm:ss
1 second
NA
missing value
second
interval data
second
1
whole
NA
missing value
datetime.matlab
date and time in Matlab format
number
0.0001
real
NA
missing value
north
north component
meter
0.000001
real
NA
missing value
east
east component
meter
0.000001
real
NA
missing value
up
up component
meter
0.000001
real
NA
missing value
11519
hf305-07-local-weather.csv
local weather
hf305-07-local-weather.csv
158634
2a31a4c6401fb3931d38e455d450b714
1
\r\n
column
,
https://harvardforest.fas.harvard.edu/data/p30/hf305/hf305-07-local-weather.csv
datetime
date and time
YYYY-MM-DDThh:mm:ss
1 second
NA
missing value
datetime.matlab
date and time in Matlab format
number
0.0001
real
NA
missing value
abspress.hpa
absolute pressure
hectopascal
0.1
real
NA
missing value
outtemp.c
outdoor temperature
celsius
0.1
real
NA
missing value
dewpoint.c
dew point
celsius
0.1
real
NA
missing value
outdoorhumidity
outdoor humidity (%)
dimensionless
1
natural
NA
missing value
hourrainfall.mm
hourly rainfall
millimeter
0.1
real
NA
missing value
gust.kmh
wind gust
kilometersPerHour
0.1
real
NA
missing value
windchill.c
wind chill
celsius
0.1
real
NA
missing value
winddirection
wind direction
wind direction
NA
missing value
windspeed.kmh
wind speed
kilometersPerHour
0.1
real
NA
missing value
interval.min
measurement interval (minute)
number
1
natural
NA
missing value
2304
international
short-term measurement