Menne: Unterschied zwischen den Versionen
(Charakterisierung und links der Menne (Altenau)) |
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[[Datei:Aquatic states.png|1000px|Aquatic states and hypotheses]] | [[Datei:Aquatic states.png|1000px|Aquatic states and hypotheses]] | ||
Hypotheses regarding ecology and biogeography of diatoms in temporary streams in each aquatic state. | |||
== The Lippe - Alme System == | == The Lippe - Alme System == | ||
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Permanent spring and springbrook = 150 m | Permanent spring and springbrook = 150 m | ||
Elevation = | Elevation = 195 - 245 m | ||
Stream slope = 1.7-2.0 % | Stream slope = 1.7-2.0 % | ||
| Zeile 32: | Zeile 35: | ||
== Sampling sites == | == Sampling sites == | ||
[[Datei:Menne locs.png|gerahmt|zentriert|Modifiziert von Meyer et al 2003, Probenahmeorte an der Menne]] | [[Datei:Menne locs.png|gerahmt|zentriert|Modifiziert von Meyer et al 2003, Probenahmeorte an der Menne]] | ||
{| class="wikitable" | |||
|- | |||
! Sampling site !! Lat !! Long !! Elevation [m] | |||
|- | |||
| M1 || 51.589308 N || 8.755923 E || 245 | |||
|- | |||
| M2 || 51.589975 N || 8.754721 E || 244 | |||
|- | |||
| M3 || 51.590694 N || 8.754786 E || 231 | |||
|- | |||
| M4 || 51.597248 N || 8.760392 E || 208 | |||
|- | |||
| M5 || 51.602579 N || 8.762742 E || 195 | |||
|} | |||
Perennial springbrook: M1, M3 | Perennial springbrook: M1, M3 | ||
Perennial spring: M2 | Perennial spring: M2 | ||
Version vom 14. Mai 2020, 09:02 Uhr
Hypotheses regarding ecology and biogeography of diatoms in temporary streams in each aquatic state.
The Lippe - Alme System
The Menne is a tributary of the Altenau, which is a tributary to the Alme, the Lippe tributary which flows into the Rhine.
The Menne was studied by Meyer et al. in 2003, looking into the effect of karstic drought on macroinvertebrates. The aim of our study is to characterize the diatom communities in ephemeral and inundated locations along this stream.
Characterization of the Menne from Meyer 2003 <ref>MEYER, A., E.I. MEYER & C. MEYER 2003. Lotic communities of two small temporary karstic stream systems (East Westphalia, Germany) along a longitudinal gradient of hydrological intermittency. Limnologica 33 (4): 271–279. </ref>
Catchment area = 7.5 km2
Length = 7 km
Widths = 0.5 - 2 m
Permanent spring and springbrook = 150 m
Elevation = 195 - 245 m
Stream slope = 1.7-2.0 %
Conductivity = 500 - 630 μS/cm
pH = 7.0 - 7.4
water hardness = 15.7 - 16.2 ºdH
Substrate: limestone rocks, coarse gravel and cobbles
Debris: high before next flood event
Sampling sites
| Sampling site | Lat | Long | Elevation [m] |
|---|---|---|---|
| M1 | 51.589308 N | 8.755923 E | 245 |
| M2 | 51.589975 N | 8.754721 E | 244 |
| M3 | 51.590694 N | 8.754786 E | 231 |
| M4 | 51.597248 N | 8.760392 E | 208 |
| M5 | 51.602579 N | 8.762742 E | 195 |
Perennial springbrook: M1, M3 Perennial spring: M2
Temporary stream section: M4, M5