Macroinvertebrate distribution in Ecuadorian hill streams: the effects of altitude and land use

Monaghan, Kieran A.; Peck, Mika; Brewin, P.A.; Masiero, Marcia; Zárate, Edwin; Turcotte, P.; Ormerod, Stephen James

doi:10.1127/archiv-hydrobiol/149/2000/421

Cited by 35 publications

(19 citation statements)

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“…; Table 1) may account for the differences in invertebrate diversity and density compared with sites in the other geologies. Jacobsen et al (1997) and Monaghan et al (2000) found that altitude influenced invertebrate community structure and taxa richness, but the differences in site elevations in our study were much smaller than those in their studies (100Á4000 m and 780Á3940 m). In addition, in Rocky Creek, a hard sedimentary stream that was also sampled above 600 m a.s.l., species diversity and density were similar to that of other streams in its geology group.…”

Section: Discussioncontrasting

confidence: 53%

Influences of geology and land use on macroinvertebrate communities across the Motueka River catchment, New Zealand

Shearer

Young

2011

New Zealand Journal of Marine and Freshwater Research

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The influences of geology and land use on macroinvertebrate communities were investigated in the Motueka River catchment, New Zealand. Comparisons of functional feeding groups, multivariate community composition and biotic indices (MCI, QMCI, %EPT) were made between native forest stream reaches that differed in subcatchment geology (ultramafic, hard sedimentary, granite, gravel, karst) and between stream reaches surrounded by different land uses (native forest, exotic forest and pasture) within two of these geologies (granite, gravel). Differences in invertebrate community density and taxon richness were greater across the three land uses in the same geology than among the five geologies. Macroinvertebrate communities in streams flowing through native forest had greater numbers of shredders, and higher MCI scores than pastoral streams. Exotic forest macroinvertebrate communities were similar to the native forest communities in granite geology, but distinct from both native and pastoral communities in sites with underlying gravel geology. The results demonstrate that there is potential for underlying geology to influence the magnitude of land use impacts on invertebrate communities. The geologies within a catchment should be accounted for when considering the consequences of land development on river and stream communities.

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Section: Discussioncontrasting

confidence: 53%

Influences of geology and land use on macroinvertebrate communities across the Motueka River catchment, New Zealand

Shearer

Young

2011

New Zealand Journal of Marine and Freshwater Research

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“…Sin embargo, este patrón está lejos de ser una regla en los cauces hídricos de altura. Maldonado & Goitia (2003) en Cochabamba (Bolivia) y Monaghan et al (2000) en los Andes de Ecuador concluyeron que la geografía regional explica mejor las variaciones químicas del agua de los ríos que la altitud o las alteraciones humanas sobre las cuencas.…”

Section: Discusionunclassified

Patrones espaciales en comunidades de macroinvertebrados acuáticos de la Puna Argentina

Nieto

2016

RBT

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Spatial patterns in communities of aquatic macroinvertebrates of Argentinean Puna. The macroinvertebrates are a vital component of freshwater ecosystems as they contribute to the process of organic matter while serving as food for other organisms such as fish and amphibians. Unfortunately, the knowledge of the aquatic diversity is poor in the high Andean systems (between 3 200 and 5 200 m.a.s.l. and rainfall below 300 mm per year), especially in the Argentinean peatbogs, a fact which has made difficult the interpretation of spatial patterns on a regional scale. The present study aimed to describe the composition of aquatic macroinvertebrates in seven peatbogs in the Argentinean Puna, and to analyze for the first time their spatial patterns. For this, we studied the relationship of these organisms with the environment, and obtained information about the surrounding vegetation and water physico-chemical characteristics. A total of 3 131 specimens of aquatic macroinvertebrates were collected, representing 25 taxa belonging to 22 families and 24 genera. In addition, 62 species of vascular plants were recorded, belonging to 20 families. The most abundant life form were the tufted grasses, followed by cushions. By using an NMDS (Non-Metrical Multidimensional Scaling) statistical analysis, the sampling sites were ordered in each peatbog as follows. The peatbogs located furthest West and South with higher water temperature were grouped on axis 1, whereas those with higher conductivity, whole water dissolved solids and salt concentration were grouped on axis 2. The water temperature was higher than air temperature at all times, and we found no association between temperature and altitude. The altitude had no correlation with the abundance of macroinvertebrates or with plant richness. Life forms such as scattered graminoids, trailing and prostrate herbs (in many cases they get into the channel) and aquatic plants were more abundant in peatbogs 4, 5 and 7 and they had a correlation with some macroinvertebrates belonging to functional trophic groups such as filter-collectors, collectors and scrapers. Finally, conductivity, whole dissolved solids and salt concentration had their highest value in peatbog 6, where Bivalvia (filter-collector) and Hyalella (collector) were also found. The results obtained attest that these macroinvertebrates displayed diversity and composition spatial patterns, the most important feature being their relationship with the surrounding vegetation, and to a lesser extent, with the physical and chemical traits of water in seven fertile lowlands in the Argentinean Puna. Rev. Biol. Trop. 64 (2): 747-762. Epub 2016 June 01.

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“…In South America, the use of benthic indicator organisms in urban streams has received recent attention (Arocena 1998;Monaghan et al 2000;Figueroa et al 2003;Silveira et al 2005) and in Argentina, benthic communities have been surveyed to assess anthropogenic effects on rivers (Gualdoni et al 1994;Domínguez and Fernández 1998;Giorgi and Malacalza 2002;Jergentz et al 2004;Pavé and Marchesse 2005;Vallania and Corigliano 2007).…”

mentioning

confidence: 98%

Assessing Urban Impacts on Water Quality, Benthic Communities and Fish in Streams of the Andes Mountains, Patagonia (Argentina)

Miserendino

Brand

Prinzio

2008

Water Air Soil Pollut

101

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Communities of aquatic macroinvertebrates, fish density and biomass, and environmental variables were investigated in three Patagonian mountain rivers affected by urbanization. The rivers Las Minas, Esquel and Carbón that flow through the towns of Cholila, Esquel and Corcovado, respectively (northwest Chubut, Argentina) were selected to assess the degree of impairment. A reference site and an urban site were established on each river. Water quality variables including conductivity, major nutrients, total suspended solids (TSS) and dissolved oxygen, habitat conditions and quality of riparian ecosystems were investigated in autumn, winter, spring and summer [2005][2006]. Macroinvertebrates were sampled concurrently in three riffles and three pools at each site. Invertebrate species richness, EPT richness, the Shannon-Weaver diversity index, % EPT density, and the BMPS index were lower at urban sites, whereas % collectors increased. The most impaired site was below Esquel, the largest town. Senzilloides panguipulli (Plecoptera), Polypedilum and Rheotanytarsus species (Diptera: Chironomidae), Nais communis (Oligochaeta) and Meridialaris chiloeensis (Ephemeroptera) dominated assemblages at reference and moderately impaired sites in summer, whereas the strongly polluted reach below Esquel had low flow in summer and a community dominated by Limnodrilus spp. (Oligochaeta), Helobdella spp. (Hirudinea), and two Hyallela species (Amphipoda). Canonical correspondence analysis indicated that ammonia, conductivity and TSS were important variables structuring invertebrate assemblages. In contrast, fish density and biomass varied in a nonsystematic manner among sites. Overall, urbanization resulted in varying degrees of habitat degradation, sedimentation and nutrient enrichment that were reflected by the macroinvertebrate assemblages, which can be used effectively to monitor the effects of urban communities on Patagonian mountain streams.

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Macroinvertebrate distribution in Ecuadorian hill streams: the effects of altitude and land use

Cited by 35 publications

References 0 publications

Influences of geology and land use on macroinvertebrate communities across the Motueka River catchment, New Zealand

Influences of geology and land use on macroinvertebrate communities across the Motueka River catchment, New Zealand

Patrones espaciales en comunidades de macroinvertebrados acuáticos de la Puna Argentina

Assessing Urban Impacts on Water Quality, Benthic Communities and Fish in Streams of the Andes Mountains, Patagonia (Argentina)

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