Environmental and aquatic macroinvertebrates metrics respond to the Eucalyptus afforestation gradient in subtropical lowland streams

Barrios, Margenny; Tesitore, Giancarlo; Burwood, Maite; Suárez, Bárbara; Meerhoff, Mariana; Alonso, Julia R.; Ríos-Touma, Blanca; Mello, Franco Teixeira de

doi:10.1007/s10750-023-05248-w

Cited by 3 publications

(2 citation statements)

References 119 publications

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“…Watercourses with high oxygen levels and good water quality are often home to Leptophlebiidae (Domínguez & Fernández, 2009;Springer, 2010). However, in waters with an abundance of nutrients, taxa such the Hydropsychidae, Baetidae, and Caenidae may have a wider tolerance range or stronger resilience (Chang et al, 2014;Masese & Raburu, 2017;Barrios et al, 2024). Several authors have suggested that family-level resolution could distinguish between unimpaired, moderately impaired, and severely impaired systems (Hewlett, Acta Limnologica Brasiliensia, 2024, vol.…”

Section: Discussionmentioning

confidence: 99%

“…Uruguayan pristine ecosystems are practically nonexistent after European colonization (Torremorell et al, 2021), and lowland streams associated with extensive livestock production. Represent the least impacted streams and generally have better water quality conditions in our country (Arocena, 1996;Benejam et al, 2016;Barrios et al 2024). For this reason, many of these streams can currently be considered reference streams in lowgradient areas in Uruguay (Barrios et al, 2024), and in this region, the small streams representative of the lowlands generally do not have riparian forests (Mary-Lauyé et al, 2023).…”

Section: Study Areamentioning

confidence: 99%

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Assessing the taxonomic sufficiency of macroinvertebrate communities and their potential to distinguish the impacts of land use on lowland streams in Uruguay

Suárez,

Barrios,

Mello

2024

Acta Limnol. Bras.

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Aim Macroinvertebrates are extensively employed as bioindicators for evaluating how stream ecosystems respond to alterations in physical and chemical habitats caused by human activity. Although family-taxonomic level is usually used to identify macroinvertebrates in biomonitoring programs, coarser taxonomic resolution may provide similar information. We aim to evaluate taxonomic sufficiency by comparing macroinvertebrate communities at the order and family levels to differentiate the effects of different land uses. Methods We conducted colonization experiments using artificial substrates in streams representing three land use types: urban (U, n=3), intensive agriculture - dairy production (AD, n=4), and extensive cattle ranching (CR, n=4). Results We obtained similar results using both taxonomic levels, which effectively distinguished the impacts of different land uses. In the sites examined, the majority of indicator groups exhibited only one family per order, with the exception of Ephemeroptera (Leptophlebiidae, Baetidae, and Caenidae). Notably, Baetidae and Caenidae were more prevalent in streams associated with extensive cattle ranching (CR). Conclusions Although this study provides a clear precedent, further investigation of these systems and other land uses (e.g., afforestation) is needed to validate this pattern. Coarser taxonomic assessment holds potential as a cost-effective method for stream monitoring and assessment in Uruguay.

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Section: Discussionmentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Assessing the taxonomic sufficiency of macroinvertebrate communities and their potential to distinguish the impacts of land use on lowland streams in Uruguay

Suárez,

Barrios,

Mello

2024

Acta Limnol. Bras.

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Taxonomic and functional diversity of oligochaetes in Neotropical springs: the influence of eucalyptus monocultures

Guimarães,

do Amaral,

da Gama Alves

2024

Hydrobiologia

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Influence of eucalyptus plantations on benthic macroinvertebrate assemblages in neotropical springs

Peixoto,

Guimarães,

Alves

2024

Acta Limnol. Bras.

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Aim The high sensitivity of springs to anthropic impacts is largely due to the high existing aquatic-terrestrial connectivity. The degradation of these ecosystems can be caused by land use, such as eucalyptus monoculture. The aim of this study was to test the influence of Eucalyptus urograndis plantations on the richness and diversity of the benthic macroinvertebrate community and on the environmental variables measured in springs in the Atlantic Forest domains. Methods Ten springs (5 in native forest areas and 5 in eucalyptus area) were sampled in the dry period of 2017. The organisms were screened and identified at the family level. For each spring, dissolved oxygen, temperature, pH, turbidity, electrical conductivity, total dissolved solids, total nitrogen, nitrite, nitrate, ammonia, total phosphorus, vegetation cover, granulometric characterization and organic matter were also measured. Results: The t-test showed that some environmental variables differed, with the eucalyptus areas having higher values of total dissolved solids and electrical conductivity, and lower values of coarse sand. In the present study, the richness and diversity of the benthic fauna of springs were significantly lower in eucalyptus sites than in native sites. Nonetheless, the composition of the communities did not differ. The Indicator Species Analysis (IndVal) associated Acari, Hydropsychidae, Leptoceridae, Nematoda, Psychodidae, and Tipulidae with areas of native forest. Conclusions Our results show that Brazilian springs are affected by eucalyptus monocultures reducing the richness and diversity of benthic macroinvertebrates and also changing water environmental properties. Thus, we verified that previous studies elsewhere in the world also apply to neotropical areas where eucalyptus is not native.

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Environmental and aquatic macroinvertebrates metrics respond to the Eucalyptus afforestation gradient in subtropical lowland streams

Cited by 3 publications

References 119 publications

Assessing the taxonomic sufficiency of macroinvertebrate communities and their potential to distinguish the impacts of land use on lowland streams in Uruguay

Assessing the taxonomic sufficiency of macroinvertebrate communities and their potential to distinguish the impacts of land use on lowland streams in Uruguay

Taxonomic and functional diversity of oligochaetes in Neotropical springs: the influence of eucalyptus monocultures

Influence of eucalyptus plantations on benthic macroinvertebrate assemblages in neotropical springs

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