Along urbanization sprawl, exotic plants distort native bee (Hymenoptera: Apoidea) assemblages in high elevation Andes ecosystem

Henríquez-Piskulich, Patricia; Vera, Alejandro; Sandoval, Gino; Villagra, Cristian A.

doi:10.7287/peerj.preprints.27140v1

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…For pollinators, large-sized bee species decreased their abundance with the increment of exotic floral resources (Henríquez-Piskulich et al, 2018). The dominance of exotic flowers appeared to positively impact the generalist pollinator, A. mellifera, but negatively affected cavity and ground-nesting floral specialist bees (Threlfall et al, 2015), which can be more diverse in native gardens (Pardee & Philpott, 2014).…”

Section: Exotic Plant Speciesmentioning

confidence: 99%

Urbanisation drivers and underlying mechanisms of terrestrial insect diversity loss in cities

Fenoglio

Calviño

González

et al. 2021

Ecological Entomology

112

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1. Urbanisation is one of the main land-use changes behind global insect collapse. Despite that previous studies have described the negative effects of urbanisation on insect communities, so far there is no synthesis that considers multiple urban drivers, their combined effects, and the role of species traits altogether.2. Here we developed an integrative framework of the underlying mechanisms behind terrestrial insect species loss in cities by exploring five leading drivers: impervious surfaces, habitat fragmentation, urban heat island, pollution, and exotic plants. For each driver, we identified the main direct and indirect (mediated through species interactions or changes in resources) effects on insect populations and communities, emphasising the role of species traits as moderators of such effects.3. Body size, mobility, and oviposition/nesting requirements were the traits that frequently defined insect vulnerability to urban drivers. Urban heat island and pollution deserve further research from a community-level approach. Direct effects of drivers dominated the literature, while most indirect paths were mediated by changes in resources rather than species interactions.4. In conclusion, our review showed the challenges of recognising particular effects and mechanisms for each urban driver and their combined effects. By doing so, we intended to encourage researchers to address some of the gaps we noticed in order to fully understand how urbanisation is affecting insect communities. Finally, we outlined the main recent urban planning strategies and future challenges in order to successfully conserve urban insect biodiversity.

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Section: Exotic Plant Speciesmentioning

confidence: 99%

Urbanisation drivers and underlying mechanisms of terrestrial insect diversity loss in cities

Fenoglio

Calviño

González

et al. 2021

Ecological Entomology

112

View full text Add to dashboard Cite

show abstract

“…High elevation areas such as the Andes also face threats from human-induced land use change, including mining activities, and grazing, and are also likely to experience the impacts of climate change sooner than other areas (Hodkinson 2005, IPCC 2014). For instance, the presence of human-introduced exotic weeds altered the structure of wild bee assemblages in Farellones in the Chilean Andes, particularly affecting large and medium-sized bee species (Henríquez-Piskulich et al, 2018). In addition, climate change is anticipated to cause species to shift to higher elevations (Parmesan and Yohe 2003, Marshall et al, 2020), increase competition between species and increase the chance for temporal mismatches between wild bees and the plant resources they pollinate (Hegland et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Chilean bee diversity: Contrasting patterns of species and phylogenetic turnover along a large-scale ecological gradient

Marshall

Ascher

Villagra

et al. 2022

Preprint

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Chile's isolation and varied climates have driven the evolution of a unique biodiversity with a high degree of endemism. The Mediterranean-type biome of Central Chile is one of 35 global biodiversity hotspots and has been highlighted as one of Chile's most endangered areas. It is threatened by anthropogenic land use change impacting the integrity of local biomes and associated species. This area holds the most extensive collections of the country with high endemicity regarding native bee species. Characterising habitat requirements of bees is a pressing priority to safeguard them and the ecosystem services they provide.We investigated broad-scale patterns of bee diversity using newly accessible expert-validated datasets comprising digitized specimen records from both Chilean and US collections and novel, expertvalidated type specimen data for the bees of Chile. We used a generalised dissimilarity modelling (GDM) approach to explore both compositional and phylogenetic β-diversity patterns across latitudinal, altitudinal, climate and habitat gradients in well-sampled bee assemblages in Central Chile. Using the GDM measures of increasing compositional and environmental dissimilarity we categorised and compared the most important drivers of these patterns and used them to classify 'wild bee ecoregions' (WBE) representing unique assemblages.Turnover of bee assemblages was explained primarily by latitudinal variation (proxy for climate) along Chile. However, temperature variations, precipitation and the presence of bare soil also significantly explained the observed patterns. In comparison, we observed less turnover in phylogenetic biodiversity corresponding to spatial gradients. We were able to develop six de novo ecoregions (WBE) all with distinct taxa, endemic lineages, and representative species. The WBE represent distinct spatial classifications but have similarities to existing biogeographical classifications, ecosystems and bioclimatic zones.

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Along urbanization sprawl, exotic plants distort native bee (Hymenoptera: Apoidea) assemblages in high elevation Andes ecosystem

Cited by 2 publications

References 3 publications

Urbanisation drivers and underlying mechanisms of terrestrial insect diversity loss in cities

Urbanisation drivers and underlying mechanisms of terrestrial insect diversity loss in cities

Chilean bee diversity: Contrasting patterns of species and phylogenetic turnover along a large-scale ecological gradient

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