Effects of reduced-impact logging on medium and large-bodied forest vertebrates in eastern Amazonia

Laufer, Juliana; Michalski, Fernanda; Peres, Carlos A.

doi:10.1590/1676-06032015013114

Cited by 9 publications

(2 citation statements)

References 69 publications

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“…In the Amazon, microclimatic conditions are known to recover relatively fast from selective logging 53 . Short-term effects of selective logging on Amazonian forest mammals have rarely been detected 54 – 56 , even in hit-and-run illegal logging within protected areas 57 . Nevertheless, while total species richness was higher in logged forest compared to adjacent unlogged forest, the number primary forest species was higher in the latter, suggesting that some forest specialists tend to decline whereas generalists and open-habitat species tend to increase.…”

Section: Discussionmentioning

confidence: 99%

Assessing assemblage-wide mammal responses to different types of habitat modification in Amazonian forests

Almeida-Maués

Bueno

Palmeirim

et al. 2022

Sci Rep

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Tropical forests are being heavily modified by varying intensities of land use ranging from structural degradation to complete conversion. While ecological responses of vertebrate assemblages to habitat modification are variable, such understanding is critical to appropriate conservation planning of anthropogenic landscapes. We assessed the responses of medium/large-bodied mammal assemblages to the ecological impacts of reduced impact logging, secondary regrowth, and eucalyptus and oil palm plantations in Eastern Brazilian Amazonia. We used within-landscape paired baseline-treatment comparisons to examine the impact of different types of habitat modification in relation to adjacent primary forest. We examined assemblage-wide metrics including the total number of species, number of primary forest species retained in modified habitats, abundance, species composition, and community integrity. We ranked all types of habitat modification along a gradient of assemblage-wide impact intensity, with oil palm and eucalyptus plantations exerting the greatest impact, followed by secondary regrowth, and selectively logging. Selectively-logged and secondary forests did not experience discernible biodiversity loss, except for the total number of primary forest species retained. Secondary forests further experienced pronounced species turnover, with loss of community integrity. Considering the biodiversity retention capacity of anthropogenic habitats, this study reinforces the landscape-scale importance of setting aside large preserved areas.

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Section: Discussionmentioning

confidence: 99%

Assessing assemblage-wide mammal responses to different types of habitat modification in Amazonian forests

Almeida-Maués

Bueno

Palmeirim

et al. 2022

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the Amazon, microclimatic conditions are known to recover relatively fast from selective logging (Mollinari et al 2019). Short-term effects of selective logging on Amazonian forest mammals have rarely been detected (Azevedo-Ramos et al 2006, Bicknell and Peres 2010, Laufer et al 2015), even in hit-and-run illegal logging within protected areas (Carvalho Jr. et al 2020). Nevertheless, while total species richness was higher in logged forest compared to adjacent unlogged forest, the number primary forest species was higher in the latter, suggesting that some forest specialists tend to decline whereas generalists and open-habitat species tend to increase.…”

Section: Discussionmentioning

confidence: 99%

Assessing Assemblage-wide Mammal Responses to Different Types of Habitat Modification in Amazonian Forests

Almeida-Maués

Bueno

Palmeirim

et al. 2021

Preprint

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The structure of tropical forest is heavily modified by varying intensities of land use ranging from structural degradation to complete conversion. While ecological responses of vertebrate assemblages to habitat modification are variable, such understanding is critical to appropriate conservation planning of anthropogenic landscapes. We assessed the responses of mammal assemblages to the ecological impacts of reduced impact logging, secondary regrowth, and eucalyptus and oil palm plantations in Eastern Brazilian Amazonia. We used within-landscape paired baseline-treatment comparisons to examine the impact of different types of habitat modification in relation to adjacent primary forest. We examined assemblage-wide metrics including the total number of species, number of primary forest species retained in modified habitats, abundance, species composition, and community integrity. We ranked all types of habitat modification along a gradient of assemblage-wide impact intensity, with oil palm and eucalyptus plantations exerting the greatest impact, followed by secondary regrowth, and selectively logging. Selectively-logged and secondary forests did not experience discernible biodiversity loss, except for the total number of primary forest species retained. Secondary forests further experienced pronounced species turnover, with loss of community integrity. Considering the biodiversity retention capacity of anthropogenic habitats, this study reinforces the landscape-scale importance of setting aside large preserved areas.

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Does selective logging stress tropical forest invertebrates? Using fat stores to examine sublethal responses in dung beetles

França

Barlow

Araújo

et al. 2016

Ecology and Evolution

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The increased global demand for tropical timber has driven vast expanses of tropical forests to be selectively logged worldwide. While logging impacts on wildlife are predicted to change species distribution and abundance, the underlying physiological responses are poorly understood. Although there is a growing consensus that selective logging impacts on natural populations start with individual stress‐induced sublethal responses, this literature is dominated by investigations conducted with vertebrates from temperate zones. Moreover, the sublethal effects of human‐induced forest disturbance on tropical invertebrates have never been examined. To help address this knowledge gap, we examined the body fat content and relative abundance of three dung beetle species (Coleoptera: Scarabaeinae) with minimum abundance of 40 individuals within each examined treatment level. These were sampled across 34 plots in a before‐after control‐impact design (BACI) in a timber concession area of the Brazilian Amazon. For the first time, we present evidence of logging‐induced physiological stress responses in tropical invertebrates. Selective logging increased the individual levels of fat storage and reduced the relative abundance of two dung beetle species. Given this qualitative similarity, we support the measurement of body fat content as reliable biomarker to assess stress‐induced sublethal effects on dung beetles. Understanding how environmental modification impacts the wildlife has never been more important. Our novel approach provides new insights into the mechanisms through which forest disturbances impose population‐level impacts on tropical invertebrates.

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Effects of reduced-impact logging on medium and large-bodied forest vertebrates in eastern Amazonia

Cited by 9 publications

References 69 publications

Assessing assemblage-wide mammal responses to different types of habitat modification in Amazonian forests

Assessing assemblage-wide mammal responses to different types of habitat modification in Amazonian forests

Assessing Assemblage-wide Mammal Responses to Different Types of Habitat Modification in Amazonian Forests

Does selective logging stress tropical forest invertebrates? Using fat stores to examine sublethal responses in dung beetles

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