2019
DOI: 10.1101/542969
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Marked compositional changes in harvestmen assemblages in Amazonian forest islands induced by a mega dam

Abstract: 1. Mega hydroelectric dams have become one of the main drivers of habitat loss in tropical forests, converting large tracts of pristine forests into isolated forest islands.Understanding how biodiversity cope with landscape modification in these archipelagic landscapes is of paramount importance to assess the environmental consequences of dam infrastructure and propose mitigation actions for biodiversity conservation. In this context, harvestmen (Opiliones, Arachnida) comprise an excellent indicator taxon of h… Show more

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Cited by 4 publications
(4 citation statements)
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“…2018; Tourinho et al. 2020). Our new findings consistently showed that population sizes and biomass density were generally low on most islands even for those species that had somehow avoided extirpation so far.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…2018; Tourinho et al. 2020). Our new findings consistently showed that population sizes and biomass density were generally low on most islands even for those species that had somehow avoided extirpation so far.…”
Section: Discussionmentioning
confidence: 99%
“…Terrestrial vertebrates and invertebrates have been extirpated at massive rates on Amazonian forest islands formed in the aftermath of dam construction (Benchimol & Peres 2015 a , 2015 b ; Tourinho et al. 2020). In particular, most arboreal and terrestrial species have been extirpated from large numbers of small islands that are human‐made archipelagos (Benchimol & Peres 2015 b ), yet the status of extant insular populations remains poorly investigated.…”
Section: Introductionmentioning
confidence: 99%
“…The partial regression coefficients (hereafter b) of an MRM model provided a measure of the rate of change in the partition of the ant community similarity in the variables of interest. For this reason, it was used in ecological studies with different approaches (Walter et al ., 2017; Busse et al ., 2018; Tourinho et al ., 2020).…”
Section: Methodsmentioning
confidence: 99%
“…Effects of habitat insularization on arthropod fauna were accessed to investigate how dung beetle assemblages respond to 30 years of post-isolation history in Amazon forest islands within the Balbina hydroelectric reservoir [37]. This study concluded that 34 dung beetle species and 15 genera were sampled and one third of all islands had been entirely defaunated of dung beetles in terms of overall occupancy [37,38].…”
Section: Case Study 2: Impacts Of Large Hydroelectric Power Plantsmentioning
confidence: 99%