Incorporating costs, thresholds and spatial extents for selecting stream bioindicators in an ecotone between two Brazilian biodiversity hotspots
Biomonitoring is critical for characterizing and monitoring status, spatial patterns, and long-term trends in the ecological condition of freshwater ecosystems. The selection of cost-effective bioindicators is a critical step in establishing such monitoring programs. Key indicator considerations are...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-08-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X2100426X |
| _version_ | 1828954940642426880 |
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| author | Francisco Valente-Neto Bruno Téllez Martínez Robert M. Hughes Anderson Ferreira Francisco Severo-Neto Franco Leandro de Souza Rodolfo Portela Souza Suzana Cunha Escarpinati Fabio de Oliveira Roque |
| author_facet | Francisco Valente-Neto Bruno Téllez Martínez Robert M. Hughes Anderson Ferreira Francisco Severo-Neto Franco Leandro de Souza Rodolfo Portela Souza Suzana Cunha Escarpinati Fabio de Oliveira Roque |
| author_sort | Francisco Valente-Neto |
| collection | DOAJ |
| description | Biomonitoring is critical for characterizing and monitoring status, spatial patterns, and long-term trends in the ecological condition of freshwater ecosystems. The selection of cost-effective bioindicators is a critical step in establishing such monitoring programs. Key indicator considerations are a reliable response to anthropogenic disturbances, a high benefit-cost-ratio and sensitivity at multiple spatial extents. We evaluated non-linear responses of Ephemeroptera, Plecoptera and Trichoptera (EPT) and fish to the effects of native vegetation loss within buffers of 100 m and 1000 m and assessed the sampling and processing costs involved for each assemblage. We sampled 37 neotropical stream sites in the Formoso River network, a karstic region of the Bodoquena Plateau, midwest Brazil, lying in the ecotone between the Cerrado and Atlantic Forest biological hotspots. We used TITAN (threshold indicator taxa analysis) to identify six indicator taxa, four EPT genera and two fish species. The four EPT genera had low negative thresholds to native vegetation loss, whereas the two fish species had positive thresholds. Thresholds were lower for the 100 m buffers than the 1000 m buffers for EPT. The most sensitive taxon (Macronema, Trichoptera) had a threshold of 0% native vegetation loss in the 100 m buffers and nearly 40% in the 1000 m buffers. For taxa richness, we found no non-linear response to the effects of native vegetation loss for buffer extent nor assemblage. The total cost for EPT biomonitoring was US$ 3,616; whereas for fish, the total was US$ 1,901. Although fish were less expensive than EPT, they did not respond negatively to native vegetation loss and their positive threshold started at 48%, a level of vegetation loss that was highly disruptive of EPT. Therefore, we do not recommend using fish to monitor the effects of native vegetation loss on headwater streams in the Bodoquena Plateau. Although EPT monitoring costs 52% more than fish assemblage monitoring, it detected earlier impacts of the effects of native vegetation loss on stream biota, especially in the 100 m buffer. Therefore, EPT are more cost-effective early warning indicators for monitoring the effects of native vegetation loss in Bodoquena Plateau headwaters. |
| first_indexed | 2024-12-14T07:40:34Z |
| format | Article |
| id | doaj.art-9377b9dfd6544b3bba09b8fba4f1b40d |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-12-14T07:40:34Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecological Indicators |
| spelling | doaj.art-9377b9dfd6544b3bba09b8fba4f1b40d2022-12-21T23:11:03ZengElsevierEcological Indicators1470-160X2021-08-01127107761Incorporating costs, thresholds and spatial extents for selecting stream bioindicators in an ecotone between two Brazilian biodiversity hotspotsFrancisco Valente-Neto0Bruno Téllez Martínez1Robert M. Hughes2Anderson Ferreira3Francisco Severo-Neto4Franco Leandro de Souza5Rodolfo Portela Souza6Suzana Cunha Escarpinati7Fabio de Oliveira Roque8Laboratório de Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Caixa Postal 549, Campo Grande, Mato Grosso do Sul CEP, 79070-900, Brazil; Corresponding author.Programa de Pós-graduação em Ecologia e Conservação, Universidade Federal de Mato Grosso do Sul, Caixa Postal 549, Campo Grande, Mato Grosso do Sul, CEP, 79070-900, BrazilAmnis Opes Institute, Corvallis, OR 97333, USA; Department of Fisheries & Wildlife, Corvallis, OR 97331, USAFaculdade de Ciências Biológicas e Ambientais, Universidade Federal da Grande Dourados, Dourados, Mato Grosso do Sul, Caixa Postal 364, CEP: 79, 804-970, BrazilInstituto de Biociências, Universidade Federal de Mato Grosso do Sul, Caixa Postal 549, Campo Grande, Mato Grosso do Sul, CEP, 79070-900, BrazilInstituto de Biociências, Universidade Federal de Mato Grosso do Sul, Caixa Postal 549, Campo Grande, Mato Grosso do Sul, CEP, 79070-900, BrazilNeotropical Foundation of Brazil, Bonito, Mato Grosso do Sul, CEP 79, 290-000, BrazilLaboratório de Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Caixa Postal 549, Campo Grande, Mato Grosso do Sul CEP, 79070-900, BrazilLaboratório de Ecologia, Instituto de Biociências, Universidade Federal de Mato Grosso do Sul, Caixa Postal 549, Campo Grande, Mato Grosso do Sul CEP, 79070-900, Brazil; Centre for Tropical Environmental and Sustainability Science (TESS), James Cook University, Cairns, QLD 4878, AustraliaBiomonitoring is critical for characterizing and monitoring status, spatial patterns, and long-term trends in the ecological condition of freshwater ecosystems. The selection of cost-effective bioindicators is a critical step in establishing such monitoring programs. Key indicator considerations are a reliable response to anthropogenic disturbances, a high benefit-cost-ratio and sensitivity at multiple spatial extents. We evaluated non-linear responses of Ephemeroptera, Plecoptera and Trichoptera (EPT) and fish to the effects of native vegetation loss within buffers of 100 m and 1000 m and assessed the sampling and processing costs involved for each assemblage. We sampled 37 neotropical stream sites in the Formoso River network, a karstic region of the Bodoquena Plateau, midwest Brazil, lying in the ecotone between the Cerrado and Atlantic Forest biological hotspots. We used TITAN (threshold indicator taxa analysis) to identify six indicator taxa, four EPT genera and two fish species. The four EPT genera had low negative thresholds to native vegetation loss, whereas the two fish species had positive thresholds. Thresholds were lower for the 100 m buffers than the 1000 m buffers for EPT. The most sensitive taxon (Macronema, Trichoptera) had a threshold of 0% native vegetation loss in the 100 m buffers and nearly 40% in the 1000 m buffers. For taxa richness, we found no non-linear response to the effects of native vegetation loss for buffer extent nor assemblage. The total cost for EPT biomonitoring was US$ 3,616; whereas for fish, the total was US$ 1,901. Although fish were less expensive than EPT, they did not respond negatively to native vegetation loss and their positive threshold started at 48%, a level of vegetation loss that was highly disruptive of EPT. Therefore, we do not recommend using fish to monitor the effects of native vegetation loss on headwater streams in the Bodoquena Plateau. Although EPT monitoring costs 52% more than fish assemblage monitoring, it detected earlier impacts of the effects of native vegetation loss on stream biota, especially in the 100 m buffer. Therefore, EPT are more cost-effective early warning indicators for monitoring the effects of native vegetation loss in Bodoquena Plateau headwaters.http://www.sciencedirect.com/science/article/pii/S1470160X2100426XAquatic insectsBiomonitoringCost-effectivenessFishTITAN |
| spellingShingle | Francisco Valente-Neto Bruno Téllez Martínez Robert M. Hughes Anderson Ferreira Francisco Severo-Neto Franco Leandro de Souza Rodolfo Portela Souza Suzana Cunha Escarpinati Fabio de Oliveira Roque Incorporating costs, thresholds and spatial extents for selecting stream bioindicators in an ecotone between two Brazilian biodiversity hotspots Ecological Indicators Aquatic insects Biomonitoring Cost-effectiveness Fish TITAN |
| title | Incorporating costs, thresholds and spatial extents for selecting stream bioindicators in an ecotone between two Brazilian biodiversity hotspots |
| title_full | Incorporating costs, thresholds and spatial extents for selecting stream bioindicators in an ecotone between two Brazilian biodiversity hotspots |
| title_fullStr | Incorporating costs, thresholds and spatial extents for selecting stream bioindicators in an ecotone between two Brazilian biodiversity hotspots |
| title_full_unstemmed | Incorporating costs, thresholds and spatial extents for selecting stream bioindicators in an ecotone between two Brazilian biodiversity hotspots |
| title_short | Incorporating costs, thresholds and spatial extents for selecting stream bioindicators in an ecotone between two Brazilian biodiversity hotspots |
| title_sort | incorporating costs thresholds and spatial extents for selecting stream bioindicators in an ecotone between two brazilian biodiversity hotspots |
| topic | Aquatic insects Biomonitoring Cost-effectiveness Fish TITAN |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X2100426X |
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