Exploratory study on the optimisation of sampling effort in a non-vegetated lagoon within a Mediterranean wetland (Albufera Natural Park, Valencia, Spain)
| Autor: | Roberta Callicó Fortunato, Juan Rueda Sevilla, M. Eugenia Rodrigo Santamalia, Vicent Benedito Durà, Vicente Gomez, Mattia Sacco |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Mediterranean climate INGENIERIA DE LA CONSTRUCCION General Decision Sciences Wetland 010501 environmental sciences Mediterranean 010603 evolutionary biology 01 natural sciences 15.- Proteger restaurar y promover la utilización sostenible de los ecosistemas terrestres gestionar de manera sostenible los bosques combatir la desertificación y detener y revertir la degradación de la tierra y frenar la pérdida de diversidad biológica 14.- Conservar y utilizar de forma sostenible los océanos mares y recursos marinos para lograr el desarrollo sostenible Sampling effort PRODUCCION VEGETAL Ecology Evolution Behavior and Systematics Environmental quality 0105 earth and related environmental sciences geography geography.geographical_feature_category Ecology Macroinvertebrates IMN Rice fields Sampling (statistics) Fishery Ecological indicator ECOLOGIA Paddy field Species richness Sample collection |
| Zdroj: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| Popis: | The analysis of macroinvertebrate communities is essential in aquatic ecology studies. Nonetheless, sample collection, processing and species determination of macroinvertebrates are extremely time-consuming and require huge efforts. Moreover, despite the crucial need for refined sampling protocols, investigations on viable benchmark sampling efforts are still scarce. This study provides a preliminary analysis on the optimisation of the sampling effort required to study macroinvertebrate communities from rice fields. Twenty core sediment samples were collected from a non-vegetated Mediterranean lagoon (rice field) in Valencia (Spain), and their macroinvertebrate community assemblages were obtained. Characterisations of the minimum number of samples needed for both faunistic inventories and environmental quality assessments were carried out using diversity indexes (number of taxa, Shannon, Simpson, and Margalef indexes), ecological indicators (Nutritional Mode Index, IMN) and several species richness estimators (Chao 1, Chao 2, Jacknife 1, Jacknife 2, ACE, ICE, Bootstrap and EstimateS 9.1.0). Our results indicate that in surveys in which the taxa richness of the communities is the objective, 20 samples or even more could be needed. However, when the objective of the study is to assess the environmental quality by means of ecological indexes such as the IMN, three samples could be an acceptable benchmark. Our findings, despite being limited by our experiment conditions, can provide methodological guidelines for ecological assessments in Mediterranean rice fields and shallow non-vegetated lagoons. Further research involving multiple study areas and seasonal patterns will help meliorate the accuracy of this protocol and refine sampling efforts in wetlands. |
| Databáze: | OpenAIRE |
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