{"title":"Preferencia de microhábitat y gremios tróficos de macroinvertebrados acuáticos en ríos altoandinos, Ayacucho, Perú","authors":"Manuel A. Silva Poma, A. A. Huamantinco Araujo","doi":"10.23818/limn.41.01","DOIUrl":null,"url":null,"abstract":"Microhabitat preference and trophic guilds of aquatic macroinvertebrates in high Andean rivers, Ayacucho, Peru Studies of aquatic macroinvertebrates in high-altitude rivers in the Andes are scarce, and little is known about the trophic role that these organisms play in these ecosystems. In the present work, the microhabitat preference of the aquatic macroinvertebrate community was studied and its trophic guilds was described through the analysis of stomach contents in two high Andean rivers of Peru. Significant differences (p < 0.05) were found between abundance, richness, Pielou equity index and effective number of species between the microhabitats studied in both rivers. The highest values of wealth in both rivers were found in the medium stone microhabitat, being the most abundant and diverse the members of the Diptera order. The lowest values of richness were found in the rock microhabitat. Four food items were identified: fine particulate organic matter (MOPF), microalgae (MA), animal remains (RA) and vegetable tissue (TV), of which MOPF was the predominant one in almost all the organisms analyzed, which shows that MOPF is the main food item consumed in both rivers. Spatially, it was the detritivores and herbivores that were in great proportion in almost all the microhabitats in both high Andean rivers.","PeriodicalId":49906,"journal":{"name":"Limnetica","volume":" ","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Limnetica","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.23818/limn.41.01","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"LIMNOLOGY","Score":null,"Total":0}
引用次数: 3
Abstract
Microhabitat preference and trophic guilds of aquatic macroinvertebrates in high Andean rivers, Ayacucho, Peru Studies of aquatic macroinvertebrates in high-altitude rivers in the Andes are scarce, and little is known about the trophic role that these organisms play in these ecosystems. In the present work, the microhabitat preference of the aquatic macroinvertebrate community was studied and its trophic guilds was described through the analysis of stomach contents in two high Andean rivers of Peru. Significant differences (p < 0.05) were found between abundance, richness, Pielou equity index and effective number of species between the microhabitats studied in both rivers. The highest values of wealth in both rivers were found in the medium stone microhabitat, being the most abundant and diverse the members of the Diptera order. The lowest values of richness were found in the rock microhabitat. Four food items were identified: fine particulate organic matter (MOPF), microalgae (MA), animal remains (RA) and vegetable tissue (TV), of which MOPF was the predominant one in almost all the organisms analyzed, which shows that MOPF is the main food item consumed in both rivers. Spatially, it was the detritivores and herbivores that were in great proportion in almost all the microhabitats in both high Andean rivers.
期刊介绍:
Limnetica publishes original research articles on the ecology of inland waters. The scope of Limnetica includes the ecology of rivers, lakes, reservoirs, coastal lagoons and wetlands, as well as biogeochemistry, paleolimnology, development of new methodologies, taxonomy, biogeography and any aspect of theoretical and applied continental aquatic ecology such as management and conservation, impact assessment, ecotoxicology and pollution. Limnetica will accept for its publication scientific articles presenting advances in knowledge or technological development, as well as as papers derived from new practical approaches on the topics covered by the journal.