cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.26008/1912/bco-dmo.4055.1
title: Urea concentrations from multiple HOE-DYLAN cruises from July to September 2012 (C-MORE project)

description: Seawater samples were collected from Niskin bottles with acid-washed syringes to avoid ammonium contamination from air and ship fumes. Samples were kept frozen (-20 ºC) until analysis. Urea was measured at the nanomolar level with the diacetyl monoxime automated method (Aminot and Kérouel, 1982), using a flow-injection system coupled to a 2m Liquid Waveguide Capillary Cell to read the color. Low nutrient seawater exposed to daylight for twoo weeks was used for working standards preparation, blanks and carrier. The absorbance-concentration relationship was linear up to at least 800 nM Urea, with a method detection limit of 4.4 nM, and an error of 4.7% at 100nM.
DOI: 10.26008/1912/bco-dmo.737176.3
title: Lake Michigan water chemistry data, including dissolved and particulate phosphorus, chlorophyll a, carbon dioxide, total dissolved inorganic carbon, and dissolved organic carbon from 2017 to 2020

description: This dataset provides Lake Michigan water chemistry data collected over several cruises conducted from 2017 to 2020.

Water chemistry and conductivity-temperature-depth (CTD) profiles were measured at several stations in Lake Michigan, ranging in depth from 10 to 55 m, in a region northeast of Milwaukee Harbor.  Measurements included soluble reactive phosphorus, total dissolved phosphorus, particulate phosphorus, chlorophyll a,  the concentrations and stable isotope ratios of particulate carbon and particulate nitrogen, dissolved carbon dioxide, dissolved total inorganic carbon, and dissolved organic carbon. In addition, continuous lake surface and atmospheric CO2 data were collected in 2019 and 2021 on a Lake Michigan transect between Milwaukee, WI and Muskegon MI. The CO2 and CTD data are provided in separate datasets. 

Measurements were made with a CO2 monitoring system mounted on a high-speed ferry that crosses the lake 4 to 6 times daily between May and October.  The monitoring system consists of a &quot;wet&quot; box which includes a peristaltic pump that draws water from the ship's sea chest and an equilibrator in which dissolved gases are equilibrated with a recirculating air flow. The air is pumped through a desiccant to remove moisture, after which it flows to a &quot;dry&quot; box where it passes through an infrared gas analyzer.  A similar system, without the peristaltic pump or equilibrator, is mounted near the bow of the ship to record atmospheric CO2 concentration.  

These chemical measurements have several applications, including: 1) Constructing an annual carbon and nutrient budget for the water column, which is used along with direct measurements of quagga mussel nutrient recycling to assess the role of invasive quagga mussels in the lake's carbon and nutrient cycles;  2) When combined with separate measurements of the vertical structure of water density and currents, to quantify vertical fluxes of dissolved nutrients and inorganic carbon, to determine how carbon and nutrient recycling by profundal quagga mussels may affect plankton production in the euphotic zone;  3) The calibration and validation of physical / biogeochemical models used to better understand how invasive quagga mussel have altered energy flow and nutrient dynamics in the Great Lakes, and guide management decisions with regard to nutrients and fish stocking.
DOI: 10.26008/1912/bco-dmo.737534.3
title: Depth profiles of temperature, conductivity, dissolved oxygen, pH, chlorophyll fluorescence, etc., collected with a SeaBird SBE 25plus CTD in Lake Michigan during 2017, 2018, and 2019

description: This dataset provides conductivity-temperature-depth (CTD) data from Lake Michigan collected over several cruises conducted during 2017, 2018, and 2019. Data were obtained using a SeaBird SBE 25plus CTD.

Water chemistry and CTD profiles were measured at several stations in Lake Michigan, ranging in depth from 10 to 55 m, in a region northeast of Milwaukee Harbor. Measurements included soluble reactive phosphorus, total dissolved phosphorus, particulate phosphorus, chlorophyll a,  the concentrations and stable isotope ratios of particulate carbon and particulate nitrogen, dissolved carbon dioxide, dissolved total inorganic carbon, and dissolved organic carbon. In addition, continuous lake surface and atmospheric CO2 data collected in 2019 and 2021 on a Lake Michigan transect between Milwaukee, WI and Muskegon MI. The chemistry and CO2 data are provided in separate datasets.

These data have several applications, including: 1) Constructing an annual carbon and nutrient budget for the water column, which is used along with direct measurements of quagga mussel nutrient recycling to assess the role of invasive quagga mussels in the lake's carbon and nutrient cycles;  2) When combined with separate measurements of the vertical structure of water density and currents, to quantify vertical fluxes of dissolved nutrients and inorganic carbon, to determine how carbon and nutrient recycling by profundal quagga mussels may affect plankton production in the euphotic zone;  3) The calibration and validation of physical / biogeochemical models used to better understand how invasive quagga mussel have altered energy flow and nutrient dynamics in the Great Lakes, and guide management decisions with regard to nutrients and fish stocking.
DOI: 10.26008/1912/bco-dmo.737667.3
title: Continuous CO2 data from a Lake Michigan transect between Milwaukee, Wisconsin and Muskegon, Michigan collected during 2017, 2018, 2019, and 2021

description: This dataset provides CO2 data collected during 2017, 2018, 2019, and 2021 from a Lake Michigan transect between Milwaukee, Wisconsin and Muskegon, Michigan.

Water chemistry and conductivity-temperature-depth (CTD) profiles were measured at several stations in Lake Michigan, ranging in depth from 10 to 55 m, in a region northeast of Milwaukee Harbor. Measurements included soluble reactive phosphorus, total dissolved phosphorus, particulate phosphorus, chlorophyll a, the concentrations and stable isotope ratios of particulate carbon and particulate nitrogen, dissolved carbon dioxide, dissolved total inorganic carbon, and dissolved organic carbon. In addition, continuous lake surface and atmospheric CO2 data were collected in 2019 and 2021 on a Lake Michigan transect between Milwaukee, WI and Muskegon MI. The water chemistry and CTD data are provided in separate datasets.  

Measurements were made with a CO2 monitoring system mounted on a high-speed ferry that crosses the lake 4 to 6 times daily between May and October. The monitoring system consists of a &quot;wet&quot; box which includes a peristaltic pump that draws water from the ship's sea chest and an equilibrator in which dissolved gases are equilibrated with a recirculating air flow. The air is pumped through a desiccant to remove moisture, after which it flows to a &quot;dry&quot; box where it passes through an infrared gas analyzer. A similar system, without the peristaltic pump or equilibrator, is mounted near the bow of the ship to record atmospheric CO2 concentration. 

These chemical measurements have several applications, including: 1) Constructing an annual carbon and nutrient budget for the water column, which is used along with direct measurements of quagga mussel nutrient recycling to assess the role of invasive quagga mussels in the lake's carbon and nutrient cycles;  2) When combined with separate measurements of the vertical structure of water density and currents, to quantify vertical fluxes of dissolved nutrients and inorganic carbon, to determine how carbon and nutrient recycling by profundal quagga mussels may affect plankton production in the euphotic zone;  3) The calibration and validation of physical / biogeochemical models used to better understand how invasive quagga mussel have altered energy flow and nutrient dynamics in the Great Lakes, and guide management decisions with regard to nutrients and fish stocking.
DOI: 10.26008/1912/bco-dmo.871678.1
title: Mass-to-charge ratio +1 values in microbial cultures (Synechococcus WH8102) detected by proton transfer reaction time-of-flight mass spectrometer in 2021 and 2022

description: Mass-to-charge ratio (m/z) +1 values in microbial cultures (Synechococcus WH8102) were detected by proton transfer reaction time-of-flight mass spectrometer following methods in Moore et al. (2020). doi:10.1111/1462-2920.14861
DOI: 10.26008/1912/bco-dmo.871602.1
title: Mass-to-charge ratio +1 values in microbial cultures (Phaeodactylum tricornutum and cocultures) detected by proton transfer reaction time-of-flight mass spectrometer in 2021 and 2022

description: Mass-to-charge ratio (m/z) +1 values in microbial cultures (Phaeodactylum tricornutum and cocultures) were detected by proton transfer reaction time-of-flight mass spectrometer following methods in Moore et al. (2020). doi:10.1111/1462-2920.14861
DOI: 10.26008/1912/bco-dmo.915289.1
title: SOS-Argo floats: atmospheric pO2 data acquired in different ocean basins between May 2012 and July 2023

description: This dataset contains data from Argo floats deployed by the Emerson group at the University of Washington between May 2012 and July 2023.  

The name SOS-Argo stands for “Special Oxygen Sensor Argo” Floats.  These floats have standard Argo sensors for hydrostatic pressure, temperature, and salinity in addition to an Aanderaa oxygen sensor  (optode) installed on a 61 cm stalk above the end cap of the float.  The tall stalk allows the float to make atmospheric pO2 measurements uncontaminated by surface waters while the float is at the surface during data transfer to shore. The atmospheric pO2 data are used for in situ calibration of the O2 sensor against atmospheric pO2.
DOI: 10.26008/1912/bco-dmo.918852.1
title: Diatom (Thalassiosira pseudonana) gene information from experiments designed to study single-cell transcriptional profiling of nutrient acquisition heterogeneity in diatoms conducted in December of 2022

description: This dataset includes gene information for diatom Thalassiosira pseudonana grown during an experiment conducted as part of a study of &quot;Single-Cell transcriptional profiling of nutrient acquisition heterogeneity in diatoms.&quot;  See &quot;Related Datasets&quot; section for T. pseudonana physiological data and cell information collected as part of the same study and experiments.


Study description: 

Diatoms (Bacillariophyceae) are unicellular photosynthetic algae, accounting for about 40% of total marine primary production (equivalent to terrestrial rainforests) and critical ecological players in the contemporary ocean. Diatoms can form enormous blooms in the ocean that can be seen from space and are the base of food webs in coastal and upwelling systems, support essential fisheries, and are central to the biogeochemical cycling of important nutrients such as carbon and silicon. Over geological time, diatoms have influenced the world's climate by changing the carbon flux into the oceans. 

Diatoms have traditionally been studied on a population level. Growth is often measured by the total increase in biomass, and gene expression is analyzed by isolating mRNA from thousands or millions of cells. These methods generate a valuable analysis on the population’s average functioning; however, they fail to show how each individual diatom cell contributes to the population phenotype. Bulk transcriptomes confound different stages and variability of cell states in heterogeneous populations. By contrast, single-cell transcriptomics measures gene expression in thousands of individual diatoms providing a quantitative and ultrahigh-resolution picture of transient cell states in population fractions enabling the reconstruction of the various phenotypic trajectories. Thus, the single-cell physiological and molecular parameters analysis allows an unsupervised assessment of cell heterogeneity within a population—a new dimension in diatoms and phytoplankton in general. 

In this dataset, we examine the model diatom Thalassiosira pseudonana clonal cells grown in different nitrogen conditions, at the single cell level when grown in a light: dark cycle (12:12 h). Nitrogen is the major limiting nutrient for primary production and growth in the ocean’s surface, specifically for diatoms and the food webs they support. We investigate nutrient limitation, starvation and recovery. We used droplet-based, single-cell transcriptomics to analyze ten samples in two stages.  In the first stage (&quot;starvation&quot;), six samples were collected over four days of culture as nutrient levels decreased.  In the second stage (&quot;recovery&quot;), four samples were collected over twelve hours after nutrients were replenished.
DOI: 10.3535/crt-gyv-za5
title: †Neopopanoceras scrobiculatum (Gemmellaro, 1887)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/n55-3pz-454
title: Tanea lineata (Röding, 1798)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gcp-sfq-1sc
title: Ostrea Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/h5d-s01-6gw
title: Cladiscites

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/r6g-6fm-vfq
title: †Orthoceras Bruguière, 1789

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/s3v-b9d-5h8
title: Anthozoa

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/xbz-fqj-s85
title: Xenodiscus

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/z3s-ezp-5y5
title: Arcestes

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.p4v5j8
title: Occurrence Download

description: A dataset containing 6 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Anadara natalensis",
 "Country is Türkiye",
 "HasCoordinate is true"
 ]
}

 The dataset includes 6 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0019130-250811113504898/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.3535/93r-xg6-2vg
title: Bryozoa

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ktq-p6f-88n
title: Cephalopoda Cuvier, 1795

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bc6-9wp-pjt
title: †Chlorodiella jugnhuhni (Martin, 1880)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/bmv-79q-c6q
title: †Montipora dubiosa Gerth, 1921

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.15468/dl.xvz4tj
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Anadara natalensis",
 "Country is Lebanon",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0019129-250811113504898/datasets/export for details.
DOI: 10.3535/547-bp8-nfb
title: Monophyllites

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gnw-113-8eq
title: †Tectonatica miopusilla (Kautsky, 1925)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/r3m-la6-0yz
title: Nuculana Link, 1807

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/3rn-4hy-qaz
title: Cephalopoda Cuvier, 1795

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/t3q-2tg-mzv
title: Crinoidea Miller, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/4nj-tx6-b93
title: Cephalopoda Cuvier, 1795

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/a68-det-mhd
title: Chromista

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rd7-309-0zg
title: Rhynchonellata Williams, Carlson, Brunton, Holmer & Popov, 1996

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/svv-8s5-44e
title: Latona cuneata (Linnaeus, 1758)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/5e1-h4t-by4
title: Cephalopoda Cuvier, 1795

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/1ee-0bs-sy4
title: Cephalopoda Cuvier, 1795

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/dav-e1f-h53
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/cln-pn5-abr
title: Anatomites

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/q94-1pd-enk
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/1fn-s1p-bwp
title: Anthozoa

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/6aj-x76-x7j
title: Lamna

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/npb-hre-8w1
title: Crinoidea Miller, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/has-v2x-yy5
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/shr-4ln-8sd
title: Crinoidea Miller, 1821

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/g4m-y4r-ja2
title: †Medlicottiidae

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/nkx-c10-6v7
title: Ostrea Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/8b1-68m-s5j
title: †Pleuroceras spinatum (Bruguière, 1789)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/lbb-9ya-ncg
title: †Latirulus njalindungensis (K. Martin, 1921)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.5281/zenodo.16887325
title: DATASET for manuscript "A systems-level multi-omics network approach identifies genetic modifiers in TANGO2 deficiency disorder"

description: This dataset contains unannotated whole-exome sequencing (VCF) and RNA-Seq (FASTQ, paired-end) data from two siblings with TANGO2 deficiency disorder. TO1 = Subject 1, TO2 = Subject 2. P indicates cell culture passages.

Whole-exome sequencing (VCF)





SNPs:





TANGO2_TO-1.snp.vcf.gz




TANGO2_TO-2.snp.vcf.gz






Indels:





TANGO2_TO-1.indel.vcf.gz




TANGO2_TO-2.indel.vcf.gz





RNA-Seq (FASTQ)Subject 1 (TO1)





Replicate 1 (P6): TO1_20ott21_1.fq.gz, TO1_20ott21_2.fq.gz




Replicate 2 (P7): TO1_22ott21_1.fq.gz, TO1_22ott21_2.fq.gz




Replicate 3 (P8): TO1_02nov21_1.fq.gz, TO1_02nov21_2.fq.gz



Subject 2 (TO2)





Replicate 1 (P6): TO2_20ott21_1.fq.gz, TO2_20ott21_2.fq.gz




Replicate 2 (P7): TO2_21ott21_1.fq.gz, TO2_21ott21_2.fq.gz




Replicate 3 (P8): TO2_02nov21_1.fq.gz, TO2_02nov21_2.fq.gz
DOI: 10.5281/zenodo.16887326
title: DATASET for manuscript "A systems-level multi-omics network approach identifies genetic modifiers in TANGO2 deficiency disorder"

description: This dataset contains unannotated whole-exome sequencing (VCF) and RNA-Seq (FASTQ, paired-end) data from two siblings with TANGO2 deficiency disorder. TO1 = Subject 1, TO2 = Subject 2. P indicates cell culture passages.

Whole-exome sequencing (VCF)





SNPs:





TANGO2_TO-1.snp.vcf.gz




TANGO2_TO-2.snp.vcf.gz






Indels:





TANGO2_TO-1.indel.vcf.gz




TANGO2_TO-2.indel.vcf.gz





RNA-Seq (FASTQ)Subject 1 (TO1)





Replicate 1 (P6): TO1_20ott21_1.fq.gz, TO1_20ott21_2.fq.gz




Replicate 2 (P7): TO1_22ott21_1.fq.gz, TO1_22ott21_2.fq.gz




Replicate 3 (P8): TO1_02nov21_1.fq.gz, TO1_02nov21_2.fq.gz



Subject 2 (TO2)





Replicate 1 (P6): TO2_20ott21_1.fq.gz, TO2_20ott21_2.fq.gz




Replicate 2 (P7): TO2_21ott21_1.fq.gz, TO2_21ott21_2.fq.gz




Replicate 3 (P8): TO2_02nov21_1.fq.gz, TO2_02nov21_2.fq.gz
DOI: 10.3535/9he-gar-et8
title: Graptolithina Bronn, 1849

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/b1r-9ms-r5q
title: Modiolus Lamarck, 1799

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/rta-wx8-dk4
title: †Dictyoclostus Muir-Wood, 1930

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.34740/kaggle/dsv/12797084
title: Enhanced Bird Dataset for Rice Field Protection
DOI: 10.3535/bk5-2j0-mqt
title: Anatomites

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/13d-d6n-aj5
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/gjt-33q-3jz
title: Tropites

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/mmv-cwx-kbd
title: Animalia

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/zmz-rpl-hwr
title: Prodactylioceras

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/lkd-t2q-n5y
title: Bivalvia Linnaeus, 1758

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/ky3-04s-0a8
title: Gastropoda Cuvier, 1795

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/l78-dkr-41c
title: †Imbricaria interlirata teschi (Koperberg, 1931)

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/4yb-a2f-m4t
title: †Anasibirites multiformis Welter, 1922

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.3535/yls-ks3-z93
title: †Acanthocladia King, 1849

description: Digital Specimen for the physical specimen hosted at Naturalis Biodiversity Center.
DOI: 10.48580/d7z3.v84
title: A new species of Toumeyella Cockerell (Hemiptera: Coccidae) on Myrtillocactus geometrizans (Cactaceae) from Mexico with a checklist of known species of Toumeyella in the world
DOI: 10.48580/d7zf.v78
title: Description of the Male of Eurypogon jaechi Kundrata, Bocakova, and Bocak (Coleoptera: Artematopodidae)
DOI: 10.48580/d7zm.v75
title: Taxonomic notes on Cyperaceae of Nepal: new records of a genus, six species and other noteworthy species
DOI: 10.48580/d7yl.v83
title: New genus and species of Trachyderini (Coleoptera, Cerambycidae, Cerambycinae) from Peru
DOI: 10.48580/d7yw.v74
title: A new parasitoid (Hymenoptera: Braconidae: Aphidiinae) of the invasive bamboo aphids Takecallis spp. (Hemiptera: Aphididae) from Western Europe
DOI: 10.48580/d7yc.v67
title: Physical evidence of predatory behavior in Tyrannosaurus rex
DOI: 10.48580/d7yp.v81
title: A New Species of Camptocerus Dejean, 1821 (Coleoptera: Curculionidae: Scolytinae: Scolytini) from Ecuador
DOI: 10.48580/d7xy.v31
title: Earthworm species occurrence in agroecosystems in the Midlands, KwaZulu-Natal, South Africa