Characteristics of the vegetation community of the riparian zone of headwater streams Cormac Mc...
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![Page 1: Characteristics of the vegetation community of the riparian zone of headwater streams Cormac Mc Conigley Dr. Heather Lally Dr. Mary Kelly-Quinn.](https://reader035.fdocuments.in/reader035/viewer/2022070605/5a4d1ad67f8b9ab05997305c/html5/thumbnails/1.jpg)
Characteristics of the vegetation community of the riparian zone of headwater streams
Cormac Mc ConigleyDr. Heather Lally
Dr. Mary Kelly-Quinn
![Page 2: Characteristics of the vegetation community of the riparian zone of headwater streams Cormac Mc Conigley Dr. Heather Lally Dr. Mary Kelly-Quinn.](https://reader035.fdocuments.in/reader035/viewer/2022070605/5a4d1ad67f8b9ab05997305c/html5/thumbnails/2.jpg)
Headwaters First and second order
Under 3m wide
77% of total river network
Heterogeneous: rapid longitudinal change
Edge to discharge ratio
![Page 3: Characteristics of the vegetation community of the riparian zone of headwater streams Cormac Mc Conigley Dr. Heather Lally Dr. Mary Kelly-Quinn.](https://reader035.fdocuments.in/reader035/viewer/2022070605/5a4d1ad67f8b9ab05997305c/html5/thumbnails/3.jpg)
Riparian zones
Area along stream
Dimensions delineation
Vital for stream condition
Forms the edge
![Page 4: Characteristics of the vegetation community of the riparian zone of headwater streams Cormac Mc Conigley Dr. Heather Lally Dr. Mary Kelly-Quinn.](https://reader035.fdocuments.in/reader035/viewer/2022070605/5a4d1ad67f8b9ab05997305c/html5/thumbnails/4.jpg)
Functions of the riparian zone
Carbon
Filtration
Stabilisation
Temperature regulation
Intrinsic value
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Site attributesSite Soil type Coordinates County Width (m) Depth (m)
31 Peat F 850 193 Mayo 2.64 0.11
50 Peat V 959 830 Kerry 2.00 0.66
58 Peat C 033 239 Donegal 1.40 0.42
65 Peat M 112 345 Galway 2.00 0.83
21 Peat B 043 228 Donegal 2.50 0.80
23 Peat B 913 138 Donegal 0.38 0.15
2 Peaty podzol O 110 112 Wicklow 1.70 0.14
7 Peaty podzol O 120 084 Wicklow 2.43 0.34
10 Peaty podzol O 150 142 Wicklow 0.93 0.23
39 Peaty podzol L 719 563 Galway 0.83 0.31
70 Peaty podzol W 896 572 Cork 1.20 0.25
Table1. Attributes of 11 upland headwater sites
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S2 R
S2 L
S1 L
S3 R
S1 R
S3 L
100m
10m
Moorland
Moorland
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S2 R
S2 L
S1 L
S1 R
R1
R2
R3
Station
2m
10 m
Moorland
Moorland
![Page 8: Characteristics of the vegetation community of the riparian zone of headwater streams Cormac Mc Conigley Dr. Heather Lally Dr. Mary Kelly-Quinn.](https://reader035.fdocuments.in/reader035/viewer/2022070605/5a4d1ad67f8b9ab05997305c/html5/thumbnails/8.jpg)
Statistical analysis
Standardised
Cluster
PERMANOVA
UnivariateA B C D E F
020406080
100
Mean Organic matter content for each of the groups ± SD
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Cluster analysis of 179 relevés
A Ba b c d e f
![Page 10: Characteristics of the vegetation community of the riparian zone of headwater streams Cormac Mc Conigley Dr. Heather Lally Dr. Mary Kelly-Quinn.](https://reader035.fdocuments.in/reader035/viewer/2022070605/5a4d1ad67f8b9ab05997305c/html5/thumbnails/10.jpg)
nMDS from cluster analysis
48% cover
![Page 11: Characteristics of the vegetation community of the riparian zone of headwater streams Cormac Mc Conigley Dr. Heather Lally Dr. Mary Kelly-Quinn.](https://reader035.fdocuments.in/reader035/viewer/2022070605/5a4d1ad67f8b9ab05997305c/html5/thumbnails/11.jpg)
nMDS from cluster analysisa BryophytaSphagnum
b Potentilla erecta Juncus effusus
c Calluna vulgarisVaccinium myrtillus
d Pteridium aquilinumBryophyta
e AnthoxanthumodoratumMolinia caerulea
f Juncus effususBryophyta
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nMDS labelled by county
b Potentilla erecta Juncus effusus
e AnthoxanthumodoratumMolinia caerulea
a BryophytaSphagnum
c Calluna vulgarisVaccinium myrtillus
Wicklow
d Pteridium aquilinumBryophytaf Juncus effusus
Bryophyta
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A B C D E F0
4
8
12
Mean number of taxa within groups ± SD
Univariate
A B C D E F0
1
2
3
Shannon diversity of each of the groups ± SD
A B C D E F0
2
4
6
Mean soil pH of the groups ± SD
A B C D E F0
1
2
3
Species richness within the groups ± SD
(S-1)logN
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Mean organic content
A B C D E F0
20
40
60
80
100Mean organic matter content for each of the groups ± SD
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Summary
Wicklow
High organic matter
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Conclusions
Equal diversity across groups
Molinia caerulea most important for grouping
East/West divide
Organic content of soil
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Acknowledgements
Dr Mary Kelly-QuinnDr. Heather Lally
My funders: Department of Agriculture Food and Marine
Partners: Woodlands of Ireland& Coillte