86 Works

The influence of large woody debris (LWD) on in situ riverbed nitrogen transformations in the Hammer Stream (Hampshire, UK)

M. Trimmer
This dataset contains results from in situ field measurements of riverbed nitrogen transformations in the Hammer Stream, a sandy tributary of the River Rother in West Sussex, UK. Measurements were performed in November 2014 and February, April and July 2015. The data include baseline concentrations of nutrients (NO2, NO3, NH3, PO4), chloride, oxygen, pH, temperature, Fe(II), organic carbon, 15N-N2 and methane (CH4) and nitrous oxide (N2O) sampled from porewater prior to injection of 15N-nitrate.

Methane ebullition from two lowland floodplain fens

C. M. Heppell, K.M. Stanley & L.R. Belyea
This dataset includes measurements of methane fluxes from two lowland floodplain fen sites in East Anglia, UK under conservation management (Sutton and Strumpshaw Fens). The data were collected on seven monthly to bimonthly visits during 2013 and comprise methane ebullition fluxes measured using inverted funnels, and methane fluxes measured using static chambers. The tall, static chambers captured methane transported by diffusion, plant-mediated transport and steady ebullition, whereas the inverted funnels captured methane transported by steady...

Metabarcoding data from the guano of insectivorous bats in Sabah, Malaysia

D. Hemprich-Bennett, V. Kemp, J. Blackman, H. Bernard, S. Rossiter & E. Clare
This dataset includes capture data for insectivorous bats captured with harp traps in Sabah, Malaysia, and dietary metabarcoding data. The dietary data was generated through obtaining bat faeces, extracting the DNA, amplifying it using ZBJ-ArtF1c ZBJ-ArtR2c primers, and then sequencing it on an illumina miseq. Code to aid interpreting the data can be found at https://doi.org/10.17636/01044623 This data was collected as part of the NERC-funded LOMBOK HMTF project, also using a small grant from Bat...

Elemental cycling in recently deglaciated landscapes, Glacier Bay National Park, Alaska

E.T. Malone, B.W. Abbott, M.J. Klaar, C. Kidd, M. Sébilo, A. Milner & G. Pinay
This data set includes soil chemical, physical and microbial properties collected across a two-century glacial chronosequence across six streams in Glacier Bay, Southeast Alaska, U.S.A. We measured soil potential nitrification, denitrification, as well as stable isotopes (delta-15N and delta-13C) of leaves and soil to establish how physical and biological changes associated with ecosystem development interact to determine rates of carbon (C) and nitrogen (N) turnover. Secondly, how these interactions were reflected in the isotopic signature...

Nitrogen transformations in riverine sediments, Hampshire Avon, United Kingdom

K. Lansdown, C. M. Heppell & M. Trimmer
The dataset contains denitrification, anaerobic ammonium oxidation (anammox) and nitrification activity of riverine sediments in the Hampshire Avon catchment (UK). Six rivers within sub-catchments of contrasting geology (clay, sand, chalk) were investigated. Data were obtained via direct, field-based measurements in seasonal campaigns conducted between spring 2013 and winter 2014. Also included are chemical parameters determined in porewaters prior to in situ rate measurements.

Riverine nitrogen gas production by anaerobic ammonium oxidation across contrasting geologies

K. Lansdown, C. M. Heppell & M. Trimmer
This dataset contains anaerobic ammonium oxidation (anammox) and denitrification activity of riverine sediments in the Hampshire Avon catchment (UK). Nine rivers within sub-catchments of contrasting geology (clay, sand, chalk) were investigated. Data were obtained via laboratory incubations (potential data) and direct, field-based measurements (in situ data) in summer 2013. Also included are chemical parameters determined in porewaters prior to in situ rate measurements.

Mammal occurrence identified from metabarcoding of two leech species from Sabah, Malaysia

R. Drinkwater, I.D. Schnell, K. Bohmann, H. Bernard, G. Veron, E. Clare, T.P. Gilbert & S.J. Rossiter
This dataset contains the results from a metabarcoding study of terrestrial leech blood meals to detect differences in the diets of two leech species, Haemadipsa picta and Haemadipsa sumatrana. Mammal taxa were identified using metabarcoding of 16s rRNA and comparisons of operational taxonomic units (OTUs) to a curated reference database from NCBI (National Center for Biotechnology Information) GenBank. All leeches were collected from the Stability of Altered Forest Ecosystems project (SAFE; www.SAFEproject.net) as part of...

Hampshire Avon: Dissolved oxygen data collected at one minute intervals from five river reaches

C.M. Heppell & S.J. Parker
This dataset contains instream dissolved oxygen data collected continuously at one minute intervals for five sites in the Hampshire Avon catchment in the United Kingdom. Data were collected between August 2014 and August 2015 using miniDOT loggers.

Hampshire Avon: Vertical head gradient, saturated hydraulic conductivity and pore water chemistry data from six river reaches

C. M. Heppell & A. Binley
This dataset contains measurements of hydraulic head and saturated hydraulic conductivity together with porewater chemistry from banks and riverbed sediments in six river reaches of contrasting geology (clay, sand, chalk) in the Hampshire Avon. Falling and rising (slug) test data were used for computation of saturated hydraulic conductivity. Hydraulic head measurements were obtained from pressure transducers installed in piezometers between Summer 2013 and Summer 2015. Samples for porewater chemical analysis were collected from porewater sampling...

Riparian vegetation structure data for 15 Wessex chalkstream sites, England, UK

J. Redhead & J. Murphy
A measure of the extent and complexity of riprian vegetation upstream of chalkstream sites derived from Light Detection and Ranging (LiDAR) data for 15 discrete chalkstreams distributed along a white chalk geology extending from Dorset in the south west, through Wiltshire, to Hampshire in the north east. For each site there is an estimate of the minimum, maximum, mean and standard deviation height of vegetation along the banks for a range of distances upstream from...

Riparian vegetation structure data for three intensively studied Wessex chalkstream sites, England, UK

J. Redhead & J. Murphy
A measure of the extent and complexity of riprian vegetation upstream of chalkstream sites derived from Light Detection and Ranging (LiDAR) data for three chalkstream sites within the Wessex chalk area (River Till, River Wylye and Nine Mile River). For each site there is an estimate of the minimum, maximum, mean and standard deviation height of vegetation along the banks for a range of distances upstream from the sampling location. Information on the extent and...

Fish biomass and density data for 3 intensively studied Wessex chalkstream sites, England, UK

J.I. Jones, A. Arnold, J. Pretty, C. Duerdoth, J. Murphy, A. Hawczak, L. Scott, R. Lauridsen & W. Beaumont
Density and biomass of fish taxa from three chalkstreams in the Wessex chalk area: Nine Mile River, River Till and River Wylye. Data were collected on five occasions, between October 2012 and October 2013. The density of fish taxa at each of the three streams was estimated using benthic fish sampling and multi-pass electrofishing. The mean biomass of individuals of each taxon at each site on each occasion was then applied to the density estimates...

Abundance, biomass and elemental composition (CNP) of consumers in the Hampshire Avon [Macronutrient Cycling]

J. I. Jones, A. Arnold, C.P. Duerdoth, A Hawczak, J.F. Murphy, O. Pacioglu, J.L. Pretty, I. A. Sanders, W.R.C. Beaumont, R.B. Lauridsen & L. Scott
The dataset contains measurements of the annual average abundance, biomass and elemental composition (C, N, P) of consumers (fish and invertebrates) in six rivers within sub-catchments of the Hampshire Avon of contrasting geology (clay, sand, chalk).

Temporal variation in temperature and light availability in the Hampshire Avon, United Kingdom [Macronutrient Cycling]

J.F. Murphy, A. Arnold, C.P. Duerdoth, A. Hawczak, O. Pacioglu, J.L Pretty & J. I. Jones
The dataset contains measurements of temperature (°C) and light availability (Lux) in rivers in the Hampshire Avon catchment (UK). Six rivers within sub-catchments of contrasting geology (clay, sand, chalk) were investigated. The stream sites monitored were chosen to reflect a gradient of base flow index. Data were obtained via direct, field-based measurements every 15 minutes from February 2013 to (max) December 2014 with sensors tethered to the bed of the river at each site.

Benthic organic matter biomass data for three intensively studied Wessex chalkstream sites, England, UK

C. Duerdoth, A. Arnold, J. Pretty, J. Murphy, A. Hawczak & J.I. Jones
Ash-free dry mass (AFDM) of three distinct size fractions of organic matter (>1cm, >1mm and > 0.025mm) collected in quantitative samples of the benthic substrate determined from up to 10 replicate samples at three chalkstream sites in the Wessex chalk area (Nine Mile River, River Till and River Wylye) on each sampling occasion. Data were collected on seven occasions on the Wylye and Nine Mile River and on five occasions on the Till, between October...

Benthic biofilm chlorophyll a content and biomass data for 3 intensively studied Wessex chalkstream sites, England, UK

J. Pretty, O. Pacioglu, C Duerdoth, A. Arnold, J. Murphy, A. Hawczak & J.I. Jones
Chlorophyll-a content and ash-free dry mass of quantitative samples of the biofilm on benthic substrate from three chalkstream sites in the Wessex chalk area (Nine Mile River, River Till and River Wylye). Chlorophyll a content and biomass were determined from up to 10 replicate samples at each site on each sampling occasion. The data are presented as means with standard deviation. Data were collected on seven occasions on the Wylye and Nine Mile River and...

Cover of Land Cover Map 2007 broad habitat classes in the upstream catchment of the 20 Wessex chalkstream sites, England, UK

J. Murphy & T. Oliver
The data consists of a matrix of 12 land cover classes by 20 stream sites with the area of each land cover class given in km2. The areal coverage (km2) of each of 12 land cover classes was recorded for each of 20 chalkstream catchments in southern England. The 20 discrete chalkstream catchments are distributed along the white chalk geology extending from Dorset in the south west, through Wiltshire, to Hampshire in the north east,...

Hampshire Avon: Daily discharge, stage and water chemistry data from four tributaries (Sem, Nadder, West Avon, Ebble)

C. M. Heppell & A. Binley
This dataset contains discharge and surface water chemistry for the six river reaches of contrasting geology (clay, sand, chalk) in the Hampshire Avon. Manual measurements of discharge by the velocity-area method enabled construction of a stage-discharge relationship for each site. Stream stage was measured using pressure transducers from Summer 2013 to Summer 2015. River water samples were collected at 48-hr intervals from Summer 2013 to Summer 2014 and samples were analysed for selected solutes and...

Soil biochemical measurements from salt marshes of different ages on the Essex coast, UK (2011)

A. Burden, A. Garbutt, S. Hughes, S. Oakley & J.A. Tempest
The dataset comprises biochemical measurements of salt marsh soil, and samples from fields on former salt marsh, taken using a soil corer. Sampling was conducted at three restored salt marshes and six accidentally breached sites on the Essex coast, UK, providing a chronosequence from 16 to 114 years since restoration of tidal flow. Natural salt marsh at all sites were also sampled, along with adjacent fields on former salt marsh (where access permitted). All salt...

Data from: Mate choice in sticklebacks reveals that immunogenes can drive ecological speciation

Demetra Andreou, Christophe Eizaguirre, Thomas Boehm & Manfred Milinski
Adaptation to ecologically contrasting niches can lead to the formation of new species. Theoretically, this process of ecological speciation can be driven by pleiotropic “magic traits” that genetically link natural and sexual selection. To qualify as a true magic trait, the pleiotropic function of a gene must be reflected in biologically relevant mechanisms underlying both local adaptation and mate choice. The immune genes of the major histocompatibility complex (MHC) contribute to parasite resistance and also...

Data from: Unidirectional diploid–tetraploid introgression among British birch trees with shifting ranges shown by restriction site-associated markers

Jasmin Zohren, Nian Wang, Igor Kardailsky, James S. Borrell, Anika Joecker, Richard A. Nichols & Richard J. A. Buggs
Hybridization may lead to introgression of genes among species. Introgression may be bidirectional or unidirectional, depending on factors such as the demography of the hybridizing species, or the nature of reproductive barriers between them. Previous microsatellite studies suggested bidirectional introgression between diploid Betula nana (dwarf birch) and tetraploid B. pubescens (downy birch) and also between B. pubescens and diploid B. pendula (silver birch) in Britain. Here, we analyse introgression among these species using 51 237...

Data from: Evidence for a pervasive ‘idling-mode’ activity template in flying and pedestrian insects

Andrew M. Reynolds, Hayley B. C. Jones, Jane K. Hill, Aislinn J. Pearson, Kenneth Wilson, Stephan Wolf, Ka S. Lim, Donald R. Reynolds, Jason W. Chapman, J. K. Hill, S. Wolf, K. Wilson, J. W. Chapman, H. B. C. Jones, K. S. Lim, A. J. Pearson, A. M. Reynolds & D. R. Reynolds
Understanding the complex movement patterns of animals in natural environments is a key objective of ‘movement ecology’. Complexity results from behavioural responses to external stimuli but can also arise spontaneously in their absence. Drawing on theoretical arguments about decision-making circuitry, we predict that the spontaneous patterns will be scale-free and universal, being independent of taxon and mode of locomotion. To test this hypothesis, we examined the activity patterns of the European honeybee, and multiple species...

Data from: Comparative rangewide phylogeography of four endemic Taiwanese bat species

Stephen J. Rossiter, Hao-Chih Kuo, Shiang-Fan Chen, Yin-Ping Fang & Jon Flanders
Phylogeographic reconstructions of co-distributed taxa can help reveal the interplay between abiotic factors, such as altitude and climate, and species-specific attributes, in shaping patterns of population genetic structure. Recent studies also demonstrate the value of both range-wide sampling and species distribution modeling (SDM) in comparative phylogeography. Here we combine these approaches to study the population histories of four phylogenetically-related forest-dependent bat species. All are endemic to the mountainous island of Taiwan but show differences in...

Data from: Diet of the insectivorous bat Pipistrellus nathusii during autumn migration and summer residence

Frauke Krüger, Elizabeth L. Clare, William O. C. Symondson, Oskars Keišs & Gunārs Pētersons
Migration is widespread among vertebrates. Yet bat migration has received little attention and only in the recent decades knowledge of it has been gained. Migration can cause significant changes in behaviour and physiology, due to increasing energy demands and aerodynamic constraints. Dietary shifts, for examples, have been shown to occur in birds before onset of migration. For bats it is not known if a change in diet occurs during migration, although especially breeding season related...

Data from: An integrative approach to detect subtle trophic niche differentiation in the sympatric trawling bat species Myotis dasycneme and Myotis daubentonii

Frauke Krüger, Elizabeth L. Clare, Stefan Greif, Bjoern M. Siemers, William O. C. Symondson & Robert S. Sommer
Bats are well known for species richness and ecological diversity thus they provide a good opportunity to study relationships and interaction between species. To assess interactions we consider distinct traits which are likely to be triggered by niche shape and evolutionary processes. We present data on the trophic niche differentiation between two sympatric European trawling bat species, Myotis dasycneme and M. daubentonii, incorporating a wide spectrum of methodological approaches. We measure morphological traits involved in...

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