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Bücker, Amelie; Sondermann, Martin; Frede, Hans-Georg; Breuer, Lutz (2010): Macroinvertebrate abundance in montane tropical streams of varying land-use, Ecuador. PANGAEA, https://doi.org/10.1594/PANGAEA.777749, Supplement to: Bücker, A et al. (2010): The influence of land-use on macroinvertebrate communities in montane tropical streams - a case study from Ecuador. Fundamental and Applied Limnology, 177(4), 267-282, https://doi.org/10.1127/1863-9135/2010/0177-0267

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Abstract:
Despite the importance of tropical montane cloud forest streams, studies investigating aquatic communities in these regions are rare and knowledge on the driving factors of community structure is missing. The objectives of this study therefore were to understand how land-use influences habitat structure and macroinvertebrate communities in cloud forest streams of southern Ecuador. We evaluated these relationships in headwater streams with variable land cover, using multivariate statistics to identify relationships between key habitat variables and assemblage structure, and to resolve differences in composition among sites. Results show that shading intensity, substrate type and pH were the environmental parameters most closely related to variation in community composition observed among sites. In addition, macroinvertebrate density and partly diversity was lower in forested sites, possibly because the pH in forested streams lowered to almost 5 during spates. Standard bioindicator metrics were unable to detect the changes in assemblage structure between disturbed and forested streams. In general, our results indicate that tropical montane headwater streams are complex and heterogeneous ecosystems with low invertebrate densities. We also found that some amount of disturbance, i.e. patchy deforestation, can lead at least initially to an increase in macroinvertebrate taxa richness of these streams.
Keyword(s):
Human Dimensions; Lakes & Rivers; Land Surface
Coverage:
Median Latitude: -3.972393 * Median Longitude: -79.072945 * South-bound Latitude: -3.975710 * West-bound Longitude: -79.080100 * North-bound Latitude: -3.969400 * East-bound Longitude: -79.063660
Date/Time Start: 2008-11-07T12:00:00 * Date/Time End: 2009-03-10T17:55:00
Minimum DEPTH, water: 0.04 m * Maximum DEPTH, water: 0.50 m
Event(s):
Rio_SanFrancisco * Latitude: -3.971400 * Longitude: -79.078700 * Elevation: 1820.0 m * Location: Ecuador * Device: Sampling river (RIVER) * Comment: DFG FOR816
Comment:
This work was funded by the Deutsche Forschungsgemeinschaft DFG in the frame of the project FOR816 "Biodiversity and Sustainable Management of a Megadiverse Mountain Ecosystem in South Ecuador".
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1RiverRiverBücker, Amelie
2LATITUDELatitudeGeocode
3LONGITUDELongitudeGeocode
4Elevation 2Elev2m a.s.l.Bücker, Amelie
5DATE/TIMEDate/TimeGeocode
6Land useLand useBücker, Amelie
7Sample code/labelSample labelBücker, Ameliethe first two digits denote the Station ID, a-d denotes the transect and 1,2 denotes the campaign no.
8WidthwmBücker, Amelieof stream
9DEPTH, waterDepth watermGeocode
10Flow velocity, waterVel waterm/sBücker, AmelieFlow meter
11ShadingShade%Bücker, AmelieVisual observation
12SandSand%Bücker, AmelieVisual observation
13Stones, coverStones cov%Bücker, AmelieVisual observationbig stones
14Stones, coverStones cov%Bücker, AmelieVisual observationsmall stones
15Gravel, coverGravel cov%Bücker, AmelieVisual observation
16Alkalinity, totalATmg/lBücker, AmelieTitrationin mg/l CaCO3
17OxygenO2µmol/lBücker, AmelieOxygen meter Oxi320 with a CellOx325 sensor (WTW, Weilheim)
18Temperature, waterTemp°CBücker, AmelieConductivity and pH meter, pH/Cond 340i (WTW, Weilheim)
19pHpHBücker, AmelieConductivity and pH meter, pH/Cond 340i (WTW, Weilheim)
20ConductivityCondmS/cmBücker, AmelieConductivity and pH meter, pH/Cond 340i (WTW, Weilheim)
21Organic matterOMmg/m2Bücker, AmelieWeighteddry OM
22Individuals per areaInd a#/m2Bücker, AmelieCounting >500 µm fractiontotal
23Taxa per areaTaxa a#/m2Bücker, AmelieCounting >500 µm fraction
24ElmidaeElmidae#/m2Bücker, AmelieCounting >500 µm fraction
25Dineutus spp.Dineutus spp.#/m2Bücker, AmelieCounting >500 µm fraction
26Anchytarsus spp.Anchytarsus spp.#/m2Bücker, AmelieCounting >500 µm fraction
27Psephenops spp.Psephenops spp.#/m2Bücker, AmelieCounting >500 µm fraction
28ChironomidaeChironomidae#/m2Bücker, AmelieCounting >500 µm fraction
29Diptera indeterminataDiptera indet#/m2Bücker, AmelieCounting >500 µm fraction
30Hexatoma spp.Hexatoma spp.#/m2Bücker, AmelieCounting >500 µm fraction
31SimuliidaeSimuliidae#/m2Bücker, AmelieCounting >500 µm fraction
32TipulidaeTipulidae#/m2Bücker, AmelieCounting >500 µm fraction
33Andesiops spp.Andesiops spp.#/m2Bücker, AmelieCounting >500 µm fraction
34Baetodes spp.Baetodes spp.#/m2Bücker, AmelieCounting >500 µm fraction
35Haplohyphes spp.Haplohyphes spp.#/m2Bücker, AmelieCounting >500 µm fraction
36Leptohyphes spp.Leptohyphes spp.#/m2Bücker, AmelieCounting >500 µm fraction
37Farrodes spp.Farrodes spp.#/m2Bücker, AmelieCounting >500 µm fraction
38Thraulodes spp.Thraulodes spp.#/m2Bücker, AmelieCounting >500 µm fraction
39Corydalus spp.Corydalus spp.#/m2Bücker, AmelieCounting >500 µm fraction
40Sialis spp.Sialis spp.#/m2Bücker, AmelieCounting >500 µm fraction
41Hetaerina spp.Hetaerina spp.#/m2Bücker, AmelieCounting >500 µm fraction
42Argia spp.Argia spp.#/m2Bücker, AmelieCounting >500 µm fraction
43Polythore spp.Polythore spp.#/m2Bücker, AmelieCounting >500 µm fraction
44Anacroneuria spp.Anacroneuria spp.#/m2Bücker, AmelieCounting >500 µm fraction
45Phylloicus spp.Phylloicus spp.#/m2Bücker, AmelieCounting >500 µm fraction
46Mortoniella spp.Mortoniella spp.#/m2Bücker, AmelieCounting >500 µm fraction
47Helicopsyche spp.Helicopsyche spp.#/m2Bücker, AmelieCounting >500 µm fraction
48Atopsyche spp.Atopsyche spp.#/m2Bücker, AmelieCounting >500 µm fraction
49Leptonema spp.Leptonema spp.#/m2Bücker, AmelieCounting >500 µm fraction
50Macrostemum spp.Macrostemum spp.#/m2Bücker, AmelieCounting >500 µm fraction
51Smicridea spp.Smicridea spp.#/m2Bücker, AmelieCounting >500 µm fraction
52Atanatolica spp.Atanatolica spp.#/m2Bücker, AmelieCounting >500 µm fraction
53Grumichella spp.Grumichella spp.#/m2Bücker, AmelieCounting >500 µm fraction
54Nectopsyche spp.Nectopsyche spp.#/m2Bücker, AmelieCounting >500 µm fraction
55Triplectes spp.Triplectes spp.#/m2Bücker, AmelieCounting >500 µm fraction
56Chimarra spp.Chimarra spp.#/m2Bücker, AmelieCounting >500 µm fraction
57Marilia spp.Marilia spp.#/m2Bücker, AmelieCounting >500 µm fraction
58Cernotina spp.Cernotina spp.#/m2Bücker, AmelieCounting >500 µm fraction
59PlanariidaePlanariidae#/m2Bücker, AmelieCounting >500 µm fraction
60Limnocoris spp.Limnocoris spp.#/m2Bücker, AmelieCounting >500 µm fraction
61PyralidaePyralidae#/m2Bücker, AmelieCounting >500 µm fraction
Size:
2715 data points

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