Cross-taxon congruence in insect responses to fragmentation of Brazilian Atlantic forest

Filgueiras, Bruno K. C.; Melo, Douglas Henrique Alves; Andersen, Alan N.; Tabarelli, Marcelo; Leal, Inara R.

doi:10.1016/j.ecolind.2018.11.036

Cited by 24 publications

(20 citation statements)

References 54 publications

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“…Researchers would usually conclude that differential responses to underlying drivers between groups in within‐group analyses would preclude the use of particular species, or species groups, as indicator taxa for biotic responses in general (e.g. Filgueiras et al., 2019). Indeed, multi‐taxon patterns could be influenced by particularly strong responses of some taxa to tree composition, and this could mean that within‐taxon drivers are masked within multi‐taxa analyses.…”

Section: Discussionmentioning

confidence: 99%

“…depends on the changes invoked, but co-ordinated change implies that as one group of species will respond, others, on different trophic levels, will also respond. Filgueiras et al, 2019). Indeed, multi-taxon patterns could be influenced by particularly strong responses of some taxa to tree composition, and this could mean that within-taxon drivers are masked within multi-taxa analyses.…”

Section: Going Beyond Biodiversity Metrics: Acrosstrophic Level Community Composition Responsesmentioning

confidence: 99%

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Overstorey composition shapes across‐trophic level community relationships in deciduous forest regardless of fragmentation context

et al. 2021

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Communities across trophic levels, and the functional roles they play, are vital for the sustained provision of ecosystem services. In forest systems, diversification of overstorey composition has been shown to be a key driver of biodiversity, but its influence on across‐trophic level relationships remains scarcely known. Species across trophic levels in varied overstorey compositions are also differentially susceptible to fragmentation context. We hypothesise that fragmentation will disrupt community relationships associated with particular overstorey compositions. We test this hypothesis using a tree diversity research platform across 53 deciduous woodland plots in central Belgium. We estimate species’ abundances within nine, generally taxonomic, community groups across trophic levels: understorey vegetation; leaf miners and gall formers; woodlice, millipedes; carabid beetles, harvestmen, spiders, birds, bats. We use multiple co‐inertia analyses to examine how taxonomic and trophic role community matrices covary across gradients of overstorey composition, via three different tree species diversification pathways, and fragmentation. For all trophic role groups, across all plots, there was at least one significant pairwise comparison. Apart from comparisons involving bats, there was at least one significant pairwise correlation between taxonomic groups too. These results indicate correlated community matrices across trophic levels. Overstorey composition related to community tightness, that is, the level of co‐ordinated change among taxonomic and/or trophic role groups as revealed by multiple co‐inertia analyses. Notably, diversifying woodlands of beech Fagus sylvatica or red oak Quercus rubra with pedunculate oak Quercus robur correlated with increased taxonomic community tightness. Diversifying pedunculate oak forest stands with other overstorey species related to unchanged community tightness. Evidence was lacking for fragmentation affecting community tightness, singly or by interacting with overstorey composition. Synthesis. Overall, changing tree species composition and fragmentation level affected across‐trophic level community relationships differently. Yet, we demonstrated a clear signal that diversifying monoculture stands with particular species correlated with greater community tightness, and co‐ordinated change among sets of community groups, across trophic levels and regardless of fragmentation context. We postulate that having tighter community relationships suggests that measures to improve biodiversity at one trophic level (i.e. trees) could affect other groups, and their associated roles, in a co‐ordinated manner.

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Section: Discussionmentioning

confidence: 99%

Section: Going Beyond Biodiversity Metrics: Acrosstrophic Level Community Composition Responsesmentioning

confidence: 99%

Overstorey composition shapes across‐trophic level community relationships in deciduous forest regardless of fragmentation context

et al. 2021

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“…群落的影响成为生态学和保护生物学的核心问题之一 (Ewers & Didham, 2006;Laurance, 2008;Wilson et al, 2016)。其中生境片断化对生物多样性格局的影响 (Horvath et al, 2019;Liu et al, 2019;Loke et al, 2019;Uroy et al, 2019), 以及物种α和β多样性对生境片断化的响应及其机制 (Filgueiras et al, 2019;Gavish et al, 2019;Hu et al, 2019;Souza et al, 2019) 越来越受到人们的关注。 α多样性是局域内的物种数量 (Whittaker, 1960), 即物种丰富度。片断化生境中的α多样性即是各生 (Lennon et al, 2001); 而β多样性则可以衡量不同群落间物种组成的变化 (Whittaker, 1960)。因此, 越来越多的研究开始关注物种β多样性格局及其影响因素 (Veech & Crist, 2007;Dobrovolski et al, 2012;Si et al, 2015;Wu et al, 2017)。 β多样性由两个潜在的生态学过程产生, 即物种替换和物种丧失 (Baselga, 2012;Carvalho et al, 2012Carvalho et al, , 2013Carvalho & Cardoso, 2014)。物种替换是由于环境或历史因素使得地点间一些物种被另外一些物种替换的过程 (Gaston, 2000;Qian et al, 2005; Baselga, 2010, 2012)。物种丧失是由于选择性灭绝、迁入或扩散限制等机制使得地点间物种丰富度出现差异 (Novotny & Weiblen, 2005;Urban et al, 2006;Ulrich et al, 2009;Carvalho et al, 2012)。当物种丰富度的差异表现为小群落的物种组成是大群落的子集时, 嵌套格局就出现了 (Patterson & Atmar, 1986; Atmar & Patterson, 1993) Fig. 3 The multiple-site Sørensen dissimilarity (β sor ) and its components of turnover (β sim ) and nestedness-resultant (β sne ) of total ants, predator ants and omnivore ants on the study islands in the Thousand Island Lake.…”

Section: 研究报告unclassified

Spatial patterns and influencing factors of ground ant species diversity on the land-bridge islands in the Thousand Island Lake, China

Zhou¹,

Zhao²,

Zeng³

et al. 2019

Biodiversity Science

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To explore spatial patterns and environmental factors affecting ground ant species diversity in the Thousand Island Lake, China, we surveyed ground ants using pitfall traps, leaf litter extraction and hand collecting on 33 islands from May to August in 2017 and 2018. We divided all ground ants into predator or omnivore ants and then used the regression models to analyze relationships between ant species diversity and island attributes. Island area had positive effects on species richness of total ants, predator ants and omnivore ants; but isolation had no significant effects. The β diversity of ants was dominated by spatial turnover component. Difference in island area had positive effects on the nestedness-resultant component of total ants, predator ants and omnivore ants communities. Difference in isolation had significant positive effects on the total β diversity of omnivore ants. Island area was the main factor affecting spatial patterns of ant species richness. In addition, island area affected the β diversity of ants via changing nestedness-resultant component, which indicates a selective extinction process in ant community assembly. Different responses of predator ants and omnivore ants to island attributes may be due to variation of dispersal ability.

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“…Fragmentation of natural habitats can promote a reduction in species diversity through the extinction of specialist species (Pardini et al, 2010;Bregman et al, 2014;Matthews et al, 2014). Atlantic Forest fragmentation and its effects on biodiversity have been intensively studied in the last years, mainly in the northeast (e.g., Lôbo et al, 2011;Leal et al, 2012;Santo-Silva et al, 2016;Filgueiras et al, 2019) and the southeast of Brazil (e.g., Umetsu & Pardini, 2007;Vieira et al, 2009;Almeida-Gomes & Rocha, 2014;Almeida-Gomes et al, 2019). The southern Atlantic Forest, at the border with the Pampa biome, remains the least studied region of this biome regarding fragmentation studies.…”

Section: Introductionmentioning

confidence: 99%

Small mammals and microhabitat selection in forest fragments in the transition zone between Atlantic Forest and Pampa biome

Skupien

Rodrigues²,

Sausen

et al. 2022

Pap. Avulsos Zool.

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Natural resources are depleted in fragmented landscapes that have their vegetation also altered. As a result, the microhabitat diversity and the composition and distribution of local species are affected. In this study, we evaluated the small mammals' community diversity, composition and microhabitat selection in two Atlantic Forest fragments, in an ecotone area with the Pampa biome, southern Brazil. We recorded five rodents (Akodon montensis, Oligoryzomys nigripes, Sooretamys angouya, Juliomys pictipes and the exotic Rattus rattus) and one marsupial (Didelphis albiventris). Both fragments were dominated by the generalist rodent A. montensis. Akodon montensis and O. nigripes showed similar habitat preferences: ground covered by rocks and higher values of vegetation obstruction. Sooretamys angouya preferred places with higher abundance of trees. Fruit availability was important for A. montensis and D. albiventris, highlighting the importance of this food resource for local wildlife, and the potential role of these species as seed predators and dispersers. Small species richness, the presence of an exotic species and high dominance level suggest that the study area is highly degraded.

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Cross-taxon congruence in insect responses to fragmentation of Brazilian Atlantic forest

Cited by 24 publications

References 54 publications

Overstorey composition shapes across‐trophic level community relationships in deciduous forest regardless of fragmentation context

Overstorey composition shapes across‐trophic level community relationships in deciduous forest regardless of fragmentation context

Spatial patterns and influencing factors of ground ant species diversity on the land-bridge islands in the Thousand Island Lake, China

Small mammals and microhabitat selection in forest fragments in the transition zone between Atlantic Forest and Pampa biome

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