Effects of oil palm plantations on habitat structure and fish assemblages in Amazon streams

Ferreira, Márcio Cunha; Begot, Tiago Octavio; Prudente, Bruno da Silveira; Juen, Leandro; Montag, Luciano Fogaça de Assis

doi:10.1007/s10641-018-0716-4

Cited by 36 publications

(22 citation statements)

References 66 publications

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“…Over the last few decades, the Amazon region has undergone changes in forest cover with impacts to both terrestrial and aquatic ecosystems (Juen et al, 2016;Laurance et al, 2014). In the eastern Amazon, there is some evidence that certain features of stream ecology appear to be maintained despite impacts from deforestation (Ferreira et al, 2018). In our study, most fish species were not strongly associated with landscape variables, initially suggesting some degree of resilience to land-use impacts at the catchment scale (Uieda & Pinto, 2011).…”

Section: Discussionmentioning

confidence: 52%

“…Presently, oil palm production is the main crop, but interest in sugarcane is increasing. Some of the sites sampled in this study were surveyed in previous studies (Benone et al, 2017;Ferreira, Begot, Prudente, Juen, & Montag, 2018;Juen et al, 2016;Prudente, Pompeu, & Montag, 2018;Prudente et al, 2017). Within our study region, conventional logging started in the 1970s, oil palm has been cultivated since the 1980s, and reducedimpact logging was established in 2000 under guidelines proposed by the mandatory forest management plan of the Brazilian Forest Code (Law 4.771/65;Brasil, 1965).…”

Section: Study Areamentioning

confidence: 99%

“…Within our study region, conventional logging started in the 1970s, oil palm has been cultivated since the 1980s, and reducedimpact logging was established in 2000 under guidelines proposed by the mandatory forest management plan of the Brazilian Forest Code (Law 4.771/65;Brasil, 1965). Some of the sites sampled in this study were surveyed in previous studies (Benone et al, 2017;Ferreira, Begot, Prudente, Juen, & Montag, 2018;Juen et al, 2016;Prudente, Pompeu, & Montag, 2018;Prudente et al, 2017). Related studies from the project Sustainable Amazon Network (Rede Amazônia Sustentável) by Leitão et al (2018), Gardner et al (2013) and Leal et al (2016Leal et al ( , 2017 are from the same basin, but different sampling sites.…”

Section: Study Areamentioning

confidence: 99%

“…The sampling unit for this study was a 150-m stretch of each stream, subdivided into 10 subsections of 15 m each. During each stream survey, total sampling effort was 18 min for each subsection, totalling 3 hr of effort per site (Ferreira et al, 2018;Prudente et al, 2017). Collected fishes were euthanised with lethal doses of the anaesthetic Eugenol, fixed in a 10% formalin solution and transferred to 70% ethanol after 48 hr.…”

Section: Fish Assemblage Structurementioning

confidence: 99%

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Land cover, riparian zones and instream habitat influence stream fish assemblages in the eastern Amazon

Montag

Winemiller

Keppeler

et al. 2018

Ecology of Freshwater Fish

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The Amazon rainforest has experienced rapid land-use changes over the last few decades, including extensive deforestation that can affect riparian habitats and streams. The aim of this study was to assess responses of stream fish assemblages to deforestation and land cover change in the eastern Amazon. We expected that percentage of forest in the catchment is correlated with local habitat complexity, which in turn determines fish assemblage composition and structure. We sampled 71 streams in areas with different land uses and tested for relationships between stream fish assemblages and local habitat and landscape variables while controlling for the effect of inter site distance. Fish assemblage composition and structure were correlated with forest coverage, but local habitat variables explained more of the variation in both assemblage composition and structure than landscape variables.Inter site distance contributed to variance explained by local habitat and landscape variables, and the percentage of variance explained by the unique contribution of local habitat was approximately equivalent to the shared variance explained by all three factors in the model. In these streams of the eastern Amazon, fish assemblages were most strongly influenced by features of instream and riparian habitats, yet indirect effects of deforestation on fish assemblage composition and structure were observed even though intact riparian zones were present at most sites. Long-term monitoring of the hydrographic basin, instream habitat and aquatic fauna is needed to test for potential legacy effects and time lags, as well as assess species responses to continuing deforestation and land-use changes in the Amazon. Aperfeiçoamento de Pessoal de Nível Superior (CAPES) for PROCAD/ CAPES funding (project no 88881.068425/2014-01), the graduate scholarship for TOB and senior internship scholarship for LFAM to conduct research at Texas A&M University (process 88881.119097/2016-1). The manuscript was improved during the review process by addressing the thoughtful comments from Philip Kaufmann and an anonymous reviewer.

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Section: Discussionmentioning

confidence: 52%

Section: Study Areamentioning

confidence: 99%

Section: Study Areamentioning

confidence: 99%

Section: Fish Assemblage Structurementioning

confidence: 99%

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Land cover, riparian zones and instream habitat influence stream fish assemblages in the eastern Amazon

Montag

Winemiller

Keppeler

et al. 2018

Ecology of Freshwater Fish

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“…Observed differences in environmental characteristics between oil palm and forested areas concur with the results of other studies (Cunha et al ., ; Luke et al ., 2017b; Ferreira et al ., ). Oil palm areas consist of habitat mosaics of monoculture at different development stages, open areas in the roads, and buffers of riparian vegetation; it is likely that these mosaics enable the occurrence of organisms with different physiological needs and dispersal abilities.…”

Section: Discussionmentioning

confidence: 97%

To what extent can oil palm plantations in the Amazon support assemblages of Odonata larvae?

Mendes

Benone

Juen

2019

Insect Conserv Diversity

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The aims of the study were to identify differences in alpha and beta diversity of Odonata larvae of the suborders Zygoptera and Anisoptera found between continuous forest sites (forest) and oil palm sites with forested buffers (oil palm), and to evaluate the extent of turnover and nestedness of communities within each habitat type. Twenty‐nine streams were sampled, 11 in forests and 18 in oil palm sites in the eastern Amazon. Alpha diversity of Zygoptera and Anisoptera was higher in streams at oil palm sites. Variation in species composition measured by beta diversity is primarily structured by turnover. Biotic heterogeneity of Zygoptera was higher in oil palm sites, while no difference was found in Anisoptera. Forested streams had more wood in the streambed, whereas oil palm sites had finer sediment, higher non‐agricultural human impact, water temperature, and road proximity index. Anisoptera turnover was positively correlated with water temperature and amount of wood in the streambed; Zygoptera turnover was positively correlated with non‐agricultural human impact. The patterns observed in Zygoptera can be attributed to the presence of forested buffers, which may have influenced the selection of foraging sites by adults and determined larval distribution. We conclude that oil palm plantations can change the environmental structure of streams and influence genus richness and turnover in Amazon streams. These results might help explain changes caused by oil palm plantations on Anisoptera and Zygoptera assemblages.

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Influence of environmental conditions and the fragmented landscape on the co-occurrence patterns of the ichthyofauna of a stream in southwestern Brazilian Amazon

de Oliveira,

Corrêa,

Ortega

et al. 2024

Aquat Sci

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Effects of oil palm plantations on habitat structure and fish assemblages in Amazon streams

Cited by 36 publications

References 66 publications

Land cover, riparian zones and instream habitat influence stream fish assemblages in the eastern Amazon

Land cover, riparian zones and instream habitat influence stream fish assemblages in the eastern Amazon

To what extent can oil palm plantations in the Amazon support assemblages of Odonata larvae?

Influence of environmental conditions and the fragmented landscape on the co-occurrence patterns of the ichthyofauna of a stream in southwestern Brazilian Amazon

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