Oil palm crops effects on environmental integrity of Amazonian streams and Heteropteran (Hemiptera) species diversity

Cunha, Erlane José; Montag, Luciano Fogaça de Assis; Juen, Leandro

doi:10.1016/j.ecolind.2014.12.024

Cited by 90 publications

(60 citation statements)

References 47 publications

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“…Studies in streams of oil palm areas without riparian forests showed loss of macroinvertebrate diversity (Luke et al ., 2017b). However, in studies on streams with riparian vegetation in oil palm plantation areas, a similar macroinvertebrate diversity was observed between oil palm and forested areas, which indicates the importance of the presence and maintenance of riparian vegetation as a buffer zone for the effects caused by plantations (Cunha et al ., ; Juen et al ., ; Carvalho et al ., ).…”

Section: Discussionmentioning

confidence: 99%

“…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: 99%

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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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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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 same 15 m channel sections (between the cross‐sections) established to measure physical habitat were used to sample the aquatic assemblages (Figure ). Two additional methods were used to sample Heteroptera specimens—first an aquatic entomological net (known as rapiché ; 18 cm diameter and mesh opening of 250 µm) sampling two substrate portions to collect the benthic organisms and second an active sampling in the water surface using a hand sieve (18 cm diameter and mesh opening of 1 mm) to sample the semi‐aquatic organisms (see Cunha et al ., for further details). The scanning with fixed areas method, successfully employed in other studies concerning this group, was used to sample adult Odonata specimens (Carvalho et al ., ; Oliveira‐Júnior et al ., ).…”

Section: Methodsmentioning

confidence: 99%

“…In our study, we used the same field data collection effort accomplished by Cunha et al . (). Our objective was to evaluate the impact of oil palm plantations on the structure and integrity of the physical habitat of streams of eastern Amazonia, trying to identify specific elements for the systematic monitoring and evaluation of these bodies of water, as well as providing a database to support projects of environmental restoration.…”

Section: Introductionmentioning

confidence: 97%

“…In addition, we will use physical parameters to assess their effects on the Heteroptera, Odonata and Fish assemblages. These organisms were selected for being very sensitive to environmental changes (Bojsen and Barriga, ; Dias‐Silva et al ., ; Carvalho et al ., ; Cunha et al ., ; Giam et al ., ; Oliveira‐Júnior et al ., ; Monteiro‐Júnior et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Effects of Oil Palm Plantations on the Habitat Structure and Biota of Streams in Eastern Amazon

et al. 2016

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Oil palm plantations have expanded around the world, increasing concern about its pressure on deforestation rates and the homogenization of the landscape. In this context, the present study aimed to evaluate the impact of oil palm plantations on the physical characteristics of streams in Amazonia and their effects on Heteroptera, Odonata and Fish assemblages. A total of 23 streams were sampled, eight within fragments of primary forest, while 15 were in oil palm plantations. Data were collected on characteristics of the channel morphology, substrate, hydraulics, instream cover for aquatic organisms, riparian vegetation, human impacts and woody debris. Instream cover and proximity of human impacts were the variables that had the greatest effects on the physical structure of the streams, showing variation between streams of forest in pristine areas and oil palm plantations. Of the analyzed parameters, substrate, instream cover and woody debris influence the richness of Heteroptera, Odonata and Fish. The impact of oil palm plantations on local streams depended on the size of the plantations, and they cannot be considered an adequate substitute for lost habitats in efforts to preserve the physical habitat of Amazonian streams. Any type of conversion of the natural forest can have direct or indirect impacts on the dynamics and structure of these environments, with potentially negative consequences for their biodiversity. The maintenance of an adequate buffer zone of native riparian vegetation adjacent to the streams that flow through the plantations recommended, because this appears to be the principal factor determining the physical conditions of these streams.

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The Threat of Industrial Oil Palm Expansion to Primates and Their Habitats

Linder

Palkovitz

2016

Ethnoprimatology

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Oil palm crops effects on environmental integrity of Amazonian streams and Heteropteran (Hemiptera) species diversity

Cited by 90 publications

References 47 publications

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

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

Effects of Oil Palm Plantations on the Habitat Structure and Biota of Streams in Eastern Amazon

The Threat of Industrial Oil Palm Expansion to Primates and Their Habitats

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