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12 results for “rainforest conversion”
Figure 5 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 5. Stable isotope values of pseudoscorpion species in different land-use systems; means with standard deviation. Dashed horizontal lines represent estimated trophic level boundaries; trophic level 1 (plant material) not shown. Decomposers feeding on detritus (trophic level 2) were assumed to be enriched in 15N by 1.7 ‰ compared to leaf litter, each following trophic level was assumed to span 3.4 ‰ (Post 2002; Potapov et al. 2019a). For abbreviations see Table 1.
Figure 3 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 3. Bootstrap species accumulation curve based on the number of adult individuals in the studied land-use systems.
Figure 4 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 4. Venn diagram of the species composition in the three land-use systems studied (rainforest, rubber, oil palm) in the Bukit Duabelas (left) and Harapan landscape (right). Landscape-specific species are underlined in red. The riparian-specific species in Harapan is underlined in cyan. For abbreviations see Table 1.
Figure 2 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 2. Density of pseudoscorpions in litter and soil of the three land-use systems studied (rainforest, rubber, oil palm) in the Bukit Duabelas and Harapan landscape. Each data point represents one sampling plot (three pooled subplot samples). Only non-riparian sites are shown.
Figure 1 in Impact of rainforest conversion into monoculture plantation systems on pseudoscorpion density, diversity and trophic niches
Figure 1. Four species of pseudoscorpions found at the study sites. From left to right: Atemnidae sp.1, Lagynochthonius sp.1, Atemnidae sp.2, Hya minuta.
Data from: Rainforest conversion to plantations fundamentally alters energy fluxes and functions in canopy arthropod food webs
<p><span>Tropical rainforests around the world are rapidly being converted into cash-crop agricultural systems. The associated massive losses of plant and animal species lead to changes in arthropod food webs and the energy fluxes therein. These changes are poorly understood, in particular in the extremely biodiverse canopies of tropical ecosystems. Using canopy fogging followed by stable isotope and energy flux analyses, we show that land-use conversion from rainforest to rubber and oil palm plantations not only causes a drastic reduction in energy fluxes of up to 75% but also shifts fluxes among trophic groups. While rainforests featured high levels of both herbivory and algae-microbiology, and a balanced ratio of herbivory to predation, relative fluxes were shifted towards predation in rubber and towards herbivory in oil palm plantations, indicating profound shifts in ecosystem functioning. Our results highlight that the ongoing loss of animal biodiversity and biomass in tropical canopies degrades animal-driven functions and restructures canopy food webs.</span></p>
Data from: Rainforest conversion to plantations fundamentally alters energy fluxes and functions in canopy arthropod food webs
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Logging of rainforest and conversion to oil palm reduces bioturbator diversity but not levels of bioturbation.
<p>This dataset contains data about bioturbation performed by different soil animals in three types of differently degraded habitats in Sabah, Borneo. This include not only levels of bioturbation, but also data about the numbers, growth and turnover of termite mounds plus litter depth for each sampling point. </p>
Data from: Tropical rainforest conversion and land-use intensification reduce understory plant phylogenetic diversity
1. Conversion of rainforest into agricultural land affects multiple facets of tropical plant diversity. While the effects of tropical land use change and intensification on species diversity are comparatively well studied, the effects on phylogenetic diversity and structure of plant communities are largely unknown. Furthermore, it is not clear how the loss of native species and addition of alien species collectively affect phylogenetic diversity and structure. 2. We investigated the phylogenetic diversity and structure of understorey plants; a diverse and ecologically important, yet poorly studied group. We studied four prominent land use systems (tropical lowland rainforest, jungle rubber agroforest, rubber plantations and oil palm plantations) in the lowlands of Sumatra (Indonesia), a region experiencing dramatic land use changes. 3. Across the four systems, we investigated differences in four metrics of phylogenetic community structure (phylogenetic diversity, mean pairwise distance, mean nearest taxon distance and their abundance-weighted variants). Our analyses were based on a comprehensive vegetation survey consisting of 32 plots, 1,197 species of vascular plants, and 146,599 plant individuals. 4. Our results showed that forest conversion into agricultural systems leads to a pronounced loss of phylogenetic diversity. Furthermore, the standard effect size of mean pairwise distance indicated a gradual change from clustered to overdispersed phylogenetic community structure with increasing land use intensity from forest over jungle rubber to the monoculture plantations. In most land use systems, the presence or absence of alien plant species did not affect phylogenetic structure. Only in oil palm plantations, removing alien species from the data led to a more overdispersed structure. In conclusion, conserving the phylogenetic diversity and structure requires efficient protection of the last remaining rainforests. 5. Synthesis and applications. Forest conversion into agricultural areas negatively affects phylogenetic understorey plant diversity and leads to a shift from clustered to overdispersed phylogenetic community structure. These trends are partly driven by alien species particularly in oil palm plantations. Protecting the remaining rainforests, and considering multi-species agroforestry systems in favour of intensive monoculture plantations are thus imperative to conserve phylogenetic plant diversity and community structure.
Data from: Tropical rainforest conversion and land-use intensification reduce understory plant phylogenetic diversity
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Data from: Bird responses to lowland rainforest conversion in Sumatran smallholder landscapes, Indonesia
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Data from: Conversion of rainforest to oil palm and rubber plantations alters energy channels in soil food webs
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