Natural history museum collection and citizen science data show advancing phenology of Danish hoverflies (Insecta: Diptera, Syrphidae) with increasing annual temperature.

We explore the phenological response by Danish hoverflies (Syrphidae) to continually rising annual temperatures by analysing >50.000 natural history collection and citizen science records for 37 species collected between 1900 and 2018, a period during which the annual average temperature in Denmark rose significantly (p < 0.01). We perform a simple linear regression analysis of the 10th percentile observation date for each species against year of observation.

Fourteen of the species showed a statistically significant (p < 0.05) negative correlation between 10th percentile date and year of observation, indicating earlier emergence as a likely response to climatic warming. Eighteen species showed a non-significant (p ≥ 0.05) negative correlation between 10th percentile date and year of observation, while four species showed a non-significant (p ≥ 0.05) positive correlation, and one showed neither a positive nor a negative correlation.

We explore the possible impact of the length of the data series on the regression analysis by dividing the species into four groups depending on how far back in time we have data: ultra-short series (with data from 2003-2018); short series (data from 1998-2018); medium series (data from 1980-2018); long series (data from 2018 to before 1980). The length of the series seems to have an effect on the results as 60% of the long series species (nine out of 15) showed a statistically significant negative correlation, while for the shorter series species less than 35% showed a statistically significant negative correlation.

mPEG-BSA (Molecular Weight: 20,000-linear)
PEG-BSA-20K 100 ug
EUR 286

mPEG-BSA (Molecular Weight: 40,000-linear)
PEG-BSA-40K 100 ug
EUR 286

Molecular Weight Marker
abx098957-15ul 15 ul
EUR 105

Chitosan, low molecular weight
GC9009-100G 100 g
EUR 118

Chitosan, low molecular weight
GC9009-50G 50 g
EUR 76

Poly(ethylene glycol) methyl ether (mPEG) Molecular Weight: 20000
PEG-20K 100 mg
EUR 225

Cytokeratin, High Molecular Weight; Clone 34bE12
A00071 6 ml
EUR 210

Cytokeratin, High Molecular Weight; Clone 34bE12
A00071.0025 25 ml
EUR 613

High Molecular Weight Kininogen (HMWK) Antibody
20-abx103271
  • EUR 411.00
  • EUR 133.00
  • EUR 1149.00
  • EUR 565.00
  • EUR 314.00
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

High Molecular Weight Kininogen (HMWK) Antibody
20-abx103272
  • EUR 411.00
  • EUR 133.00
  • EUR 1149.00
  • EUR 565.00
  • EUR 314.00
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

High Molecular Weight Kininogen (HMWK) Antibody
20-abx103273
  • EUR 439.00
  • EUR 133.00
  • EUR 1247.00
  • EUR 592.00
  • EUR 328.00
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

High Molecular Weight Kininogen (HMWK) Antibody
20-abx131685
  • EUR 425.00
  • EUR 133.00
  • EUR 1177.00
  • EUR 578.00
  • EUR 328.00
  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Cytokeratin, High Molecular Weight; Clone 34bE12
A20071 2 ml
EUR 120

Recombinant High Molecular Weight Kininogen (HMWK)
4-RPB805Hu01
  • EUR 494.24
  • EUR 235.00
  • EUR 1578.40
  • EUR 592.80
  • EUR 1085.60
  • EUR 394.00
  • EUR 3796.00
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Human High Molecular Weight Kininogen expressed in: E.coli

Recombinant High Molecular Weight Kininogen (HMWK)
4-RPB805Hu02
  • EUR 494.24
  • EUR 235.00
  • EUR 1578.40
  • EUR 592.80
  • EUR 1085.60
  • EUR 394.00
  • EUR 3796.00
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Human High Molecular Weight Kininogen expressed in: E.coli

Recombinant High Molecular Weight Kininogen (HMWK)
4-RPB805Mu01
  • EUR 510.37
  • EUR 239.00
  • EUR 1638.88
  • EUR 612.96
  • EUR 1125.92
  • EUR 404.00
  • EUR 3947.20
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Mouse High Molecular Weight Kininogen expressed in: E.coli

Recombinant High Molecular Weight Kininogen (HMWK)
4-RPB805Ra01
  • EUR 535.46
  • EUR 246.00
  • EUR 1732.96
  • EUR 644.32
  • EUR 1188.64
  • EUR 421.00
  • EUR 4182.40
  • 100 ug
  • 10ug
  • 1 mg
  • 200 ug
  • 500 ug
  • 50ug
  • 5 mg
Description: Recombinant Rat High Molecular Weight Kininogen expressed in: E.coli

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abx005570-50ul 50 ul
EUR 272

alpha Tubulin (alpha Tubulin) Antibody
20-abx005573
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  • 200 ul
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alpha Tubulin (alpha Tubulin) Antibody
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EUR 321

alpha Tubulin (alpha tubulin) Antibody
20-abx133573
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  • 200 ul
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alpha Tubulin (alpha tubulin) Antibody
20-abx134672
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  • 200 ul
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alpha Tubulin (alpha tubulin) Antibody
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  • 200 ul
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alpha Tubulin (alpha Tubulin) Antibody
abx448544-100ug 100 ug
EUR 523

alpha Tubulin (alpha Tubulin) Antibody
abx230332-100ug 100 ug
EUR 509

alpha Tubulin (alpha Tubulin) Antibody
abx230333-100ug 100 ug
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20-abx168771
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  • EUR 2207.00
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  • 100 ug
  • 10 ug
  • 1 mg
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  • 50 ug

Human High Molecular Weight Kininogen (HMWK) Protein
20-abx067108
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  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Human High Molecular Weight Kininogen (HMWK) Protein
20-abx067109
  • EUR 690.00
  • EUR 286.00
  • EUR 2124.00
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  • 100 ug
  • 10 ug
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  • 50 ug

Rat High Molecular Weight Kininogen (HMWK) Protein
20-abx067110
  • EUR 746.00
  • EUR 300.00
  • EUR 2332.00
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  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Human cytokeratin Low Molecular Weight ELISA Kit
ELA-E1062h 96 Tests
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ELI-19711p 96 Tests
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High Molecular Weight Kininogen (HMWK) Antibody (FITC)
20-abx271290
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  • 100 ug
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High Molecular Weight Kininogen (HMWK) Antibody (Biotin)
20-abx271556
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Low Molecular Weight Kininogen (LMWK) Antibody (Biotin)
20-abx272443
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  • 100 ug
  • 10 ug
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High Molecular Weight Kininogen (HMWK) Antibody (Biotin)
20-abx272543
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  • EUR 244.00
  • EUR 1261.00
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  • 100 ug
  • 10 ug
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Low Molecular Weight Kininogen (LMWK) Antibody (Biotin)
20-abx272874
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  • 100 ug
  • 10 ug
  • 1 mg
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  • 50 ug

High Molecular Weight Kininogen (HMWK) Antibody Pair
20-abx370784
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  • EUR 1080.00
  • 10 × 96 tests
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Low Molecular Weight Kininogen (LMWK) Antibody (FITC)
20-abx273947
  • EUR 495.00
  • EUR 258.00
  • EUR 1455.00
  • EUR 676.00
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  • 100 ug
  • 10 ug
  • 1 mg
  • 200 ug
  • 50 ug

Chitosan (5 cps), ultra low molecular weight
GP1318-100G 100 g
EUR 78

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Chitosan (10 cps), very low molecular weight
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Chitosan (10 cps), very low molecular weight
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Chitosan (10 cps), very low molecular weight
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Chitosan (10 cps), very low molecular weight
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Chitosan (100 - 300 cps), low molecular weight
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Chitosan (30 - 100 cps), low molecular weight
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Chitosan (300 - 1000 cps), medium molecular weight
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Chitosan (300 - 1000 cps), medium molecular weight
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Chitosan (300 - 1000 cps), medium molecular weight
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Chitosan (300 - 1000 cps), medium molecular weight
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EUR 134

Human Low molecular weight heparin ELISA kit
E01L0246-192T 192 tests
EUR 1270
Description: A competitive ELISA for quantitative measurement of Human Low molecular weight heparin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Human Low molecular weight heparin ELISA kit
E01L0246-48 1 plate of 48 wells
EUR 520
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Human Low molecular weight heparin ELISA kit
E01L0246-96 1 plate of 96 wells
EUR 685
Description: A competitive ELISA for quantitative measurement of Human Low molecular weight heparin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Human High molecular weight Adiponectin ELISA kit
E01A0530-192T 192 tests
EUR 1270
Description: A competitive ELISA for quantitative measurement of Human High molecular weight Adiponectin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Human High molecular weight Adiponectin ELISA kit
E01A0530-48 1 plate of 48 wells
EUR 520
Description: A competitive ELISA for quantitative measurement of Human High molecular weight Adiponectin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Human High molecular weight Adiponectin ELISA kit
E01A0530-96 1 plate of 96 wells
EUR 685
Description: A competitive ELISA for quantitative measurement of Human High molecular weight Adiponectin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Rat High molecular weight Adiponectin ELISA kit
E02A0530-192T 192 tests
EUR 1270
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Rat High molecular weight Adiponectin ELISA kit
E02A0530-48 1 plate of 48 wells
EUR 520
Description: A competitive ELISA for quantitative measurement of Rat High molecular weight Adiponectin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Rat High molecular weight Adiponectin ELISA kit
E02A0530-96 1 plate of 96 wells
EUR 685
Description: A competitive ELISA for quantitative measurement of Rat High molecular weight Adiponectin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Mouse Low molecular weight heparin ELISA kit
E03L0246-192T 192 tests
EUR 1270
Description: A competitive ELISA for quantitative measurement of Mouse Low molecular weight heparin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Mouse Low molecular weight heparin ELISA kit
E03L0246-48 1 plate of 48 wells
EUR 520
Description: A competitive ELISA for quantitative measurement of Mouse Low molecular weight heparin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Mouse Low molecular weight heparin ELISA kit
E03L0246-96 1 plate of 96 wells
EUR 685
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Rabbit High molecular weight Adiponectin ELISA kit
E04A0530-192T 192 tests
EUR 1270
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Rabbit High molecular weight Adiponectin ELISA kit
E04A0530-48 1 plate of 48 wells
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Rabbit High molecular weight Adiponectin ELISA kit
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Mouse High molecular weight Adiponectin ELISA kit
E03A0530-192T 192 tests
EUR 1270
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Mouse High molecular weight Adiponectin ELISA kit
E03A0530-48 1 plate of 48 wells
EUR 520
Description: A competitive ELISA for quantitative measurement of Mouse High molecular weight Adiponectin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Mouse High molecular weight Adiponectin ELISA kit
E03A0530-96 1 plate of 96 wells
EUR 685
Description: A competitive ELISA for quantitative measurement of Mouse High molecular weight Adiponectin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Rat Low molecular weight heparin ELISA kit
E02L0246-192T 192 tests
EUR 1270
Description: A competitive ELISA for quantitative measurement of Rat Low molecular weight heparin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Rat Low molecular weight heparin ELISA kit
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Rat Low molecular weight heparin ELISA kit
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Rabbit Low molecular weight heparin ELISA kit
E04L0246-192T 192 tests
EUR 1270
Description: A competitive ELISA for quantitative measurement of Rabbit Low molecular weight heparin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Rabbit Low molecular weight heparin ELISA kit
E04L0246-48 1 plate of 48 wells
EUR 520
Description: A competitive ELISA for quantitative measurement of Rabbit Low molecular weight heparin in samples from blood, plasma, serum, cell culture supernatant and other biological fluids. This is a high quality ELISA kit developped for optimal performance with samples from the particular species.

Rabbit Low molecular weight heparin ELISA kit
E04L0246-96 1 plate of 96 wells
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Goat Low molecular weight heparin ELISA kit
E06L0246-192T 192 tests
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Goat Low molecular weight heparin ELISA kit
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When we reduced the long series in length to short series, the proportion of statistically significant negative correlations fell to 33%, confirming this assumption. We conclude that northern temperate hoverflies generally react to the ongoing climatic warming by emerging earlier.

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