The effects of urbanization on pollinators and pollination: A meta‐analysis

Ecology Letters, Journal Year: 2023, Volume and Issue: 26(9), P. 1629 - 1642

Published: June 22, 2023

Urbanization is increasing worldwide, with major impacts on biodiversity, species interactions and ecosystem functioning. Pollination an function vital for terrestrial ecosystems food security; however, the processes underlying patterns of pollinator diversity services they provide in cities have seldom been quantified. Here, we perform a comprehensive meta-analysis 133 studies examining effects urbanization pollinators pollination. Our results confirm widespread negative richness abundance, Lepidoptera being most affected group. Furthermore, responses were found to be trait-specific, below-ground nesting solitary Hymenoptera, spring flyers more severely by urbanization. Meanwhile, promote non-native pollinators, which may exacerbate conservation risks native species. Surprisingly, despite diversity, pollination service measured as seed set enhanced non-tropical likely due abundant generalists managed therein. We emphasize that local flowering plants could mitigate diversity. Overall, demonstrate varying magnitudes multiple moderators urban help guide actions biodiversity sustainable future.

Language: Английский

---

Exploring Ionic Liquid-based Liquid-Liquid Extraction as Benign Alternative for Sustainable Wastewater Treatment

Sustainability & Circularity NOW, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

The uncontrolled release of industrial effluents containing micropollutants (MPs), dyes, and heavy metal ions contaminates natural water bodies posing threats to health the environment. Conventional treatment methods often struggle with challenges such as prolonged processing time, low specificity, risk producing secondary pollutants. Liquid-liquid extraction (LLE) technique utilizing ionic liquids (ILs) has emerged a viable alternative for elimination contaminants from wastewater. ILs, characterized by minimal volatility tunable physicochemical properties, facilitate precise effluent. IL-LLE streamlines experimental setup, lowers energy consumption, promotes recyclability reuse, enhances mechanistic understanding, hence provides sustainable effluent treatment. This review comprehensive analysis approaches wastewater treatment, commencing an overview historical evolution tracing their progression initial research contemporary advanced applications. article primarily examines practical applications IL-LLE, demonstrating how these are employed efficiently remove diverse both simulated actual samples. As whole, consolidates versatility efficiency IL-based LLE in addressing various

Language: Английский

---

The degree of urbanisation reduces wild bee and butterfly diversity and alters the patterns of flower-visitation in urban dry grasslands

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: Feb. 15, 2023

Abstract Insect-provided pollination services are increasingly threatened due to alarming declines in insect pollinator populations. One of the main threats pollinators and consequently is urbanisation. Here, we investigate effects local habitat quality (patch size, flowering plant richness, bare soil cover, vegetation structure), degree urbanisation (impervious surfaces) 3D connectivity on bee, hoverfly butterfly flower visitors plant-flower visitor networks flower-rich urban dry grasslands. Overall, influenced communities. Although abundance increased with urbanisation, bee species richness decreased increasing impervious surfaces. Flowering ground nesting resource availability were positively related structure boosted visitation rates. In terms plant–pollinator interactions, visited a lower proportion available plants more urbanised areas network modularity specialisation patch size. Our findings show that grasslands valuable habitats for species-rich communities further highlight importance minimizing intensity potential management practices support biodiversity cities.

Language: Английский

---

Diverse urban pollinators and where to find them

Biological Conservation, Journal Year: 2023, Volume and Issue: 281, P. 110036 - 110036

Published: April 3, 2023

Language: Английский

---

Identifying urban rewilding opportunity spaces in a metropolis: Chongqing as an example

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111778 - 111778

Published: March 1, 2024

The worldwide urbanization has resulted in a massive loss of natural habitats, which is threatening biodiversity and socio-ecological sustainability. Urban rewilding strategy aiming to restore the complexity, autonomy self-sustainability urban ecosystems by interlinking ecological processes while minimizing or gradually reducing human disturbances. benefits are widely acknowledged; however, there remains knowledge gap concerning identification suitable locations for methodologies assessing potential areas. In this study, we proposed an approach that can be used accurately identify opportunity spaces (UROS, existing wildness areas offering conditions conducive establishment new wildness), integrating data on spatial heterogeneity, disturbance. UROS Chongqing, China was evaluated mapped at city-wide scale, with subsequent validation results through assessment species richness spontaneous herbaceous communities, serve as pioneer processes. revealed positive correlation between high-scoring increased herbs, thus confirming feasibility method. Eleven primary types were identified, majority displaying scattered linear distributions. Most very characterized expansive woodland expanses situated outskirts high-density built-up substantial water bodies within Notably, nearly half encompass 900 m2 less, underscoring importance initiatives targeting not only preservation extensive robust connectivity but also revitalization fragmented limited central regions. methodology applicable offer insights guidance execution conservation efforts, contributing sustainable regional development context rapid urbanization.

Language: Английский

---

Plant distribution, ecological traits and diversity patterns of vegetation in subtropical managed forests as guidelines for forest management policy

Frontiers in Forests and Global Change, Journal Year: 2024, Volume and Issue: 7

Published: June 28, 2024

Forest vegetation is an important component of forest ecosystems, contributing to terrestrial plant diversity while also providing a variety ecological services. In managed landscapes, plantations emerge as dominant kinds after stand-replacing disturbances. However, the dynamics cover, diversity, and composition in plantation forests remains poorly understood subtropical region. Our study recorded rich floral with 173 angiosperm species, characterized by varying life forms distinct flowering phenology. The uneven distribution species across families demonstrated complexity ecosystem, Poaceae being dominant. Diversity patterns among different types varied, Dalbergia sissoo Populus nigra exhibiting higher richness diversity. Conversely, Eucalyptus camaldulensis Morus alba displayed lower emphasizing influence type on biodiversity. Non-metric multidimensional scaling (nMDS) PERMANOVA analyses revealed significant dissimilarity composition. Indicator analysis identified unique compositions within each type, importance conserving specific protect indicator maintained distinctiveness. Canonical Correspondence Analysis (CCA) that road accessibility, stem cutting, fire significantly influenced patterns. present research underscored considering management for biodiversity conservation highlighted environmental variables’ formation communities. These results provided major implications sustainable efforts tropical regions.

Language: Английский

---

Application of functional feeding groups of macroinvertebrates in highly urbanized streams

AQUA - Water Infrastructure Ecosystems and Society, Journal Year: 2024, Volume and Issue: 73(2), P. 338 - 354

Published: Feb. 1, 2024

Abstract Urbanization is an inevitable process accompanying economic development. However, the rapid urbanization posing a threat to aquatic communities and causing disruptions river ecosystems. In highly urbanized ecosystems, mechanisms of human activities on functional feeding groups (FFGs) macroinvertebrates remain unclear, hindering restoration This study focuses urban stream called Yangmei River in Guangzhou investigates environmental factors August November 2022 February May 2023. Variance analysis, principal component hierarchical cluster analysis were employed research temporal spatial characteristics FFGs. Redundancy was used explore influencing Finally, ecosystem attributes calculated based FFG data ratios. The results indicate that gathering-collectors dominate River, leading transition toward heterotrophic system. Simultaneously, damaged material transportation function, weakened riparian poor habitat stability all reveal fact partial degradation River. provides valuable insights into overall functionality contributes theoretical support for application methods ecological assessment rivers.

Language: Английский

---

Has Secondary Science Program Become an Elite Urban Education Product in the Former Colonized Nation?

Education and Urban Society, Journal Year: 2024, Volume and Issue: 56(8), P. 1002 - 1024

Published: March 15, 2024

A distinct education has become a heretical right for urban elites despite educational equality is an official agenda. This not only widened the gaps between and rural counterparts but also developed discriminations amongst different classes of student within schools. To validate this tenet, facilities offered by various schools were compared. Yet, whether particular secondary program exclusive essentially to deprive others; widely explored—an investigation study. Educational background some selective socioeconomic status (SES) 925,617 students; completed their school certificate from 3,315 collected make comparison through descriptive analysis data. Findings note that science popular elites. Subsequently, they perform well in public examination. Furthermore, discussions suggest being international demands both formal informal higher budgets. Hence, greater success provision helps them succeed successively procuring thereby job-market. Thus, policy intervention required ensure effective implementation equity concept.

Language: Английский

---

Substantial urbanization‐driven declines of larval and adult moths in a subtropical environment

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(3)

Published: March 1, 2024

Abstract Recent work has shown the decline of insect abundance, diversity and biomass, with potential implications for ecosystem services. These declines are especially pronounced in regions high human activity, urbanization is emerging as a significant contributing factor. However, scale these traits that determine variation species‐specific responses remain less well understood, subtropical tropical regions, where urban footprints rapidly expanding. Here, we surveyed moths across an entire year protected forested sites gradient to test how caterpillar adult life stages (Lepidoptera) impacted by urbanization. Specifically, assess development affects total biomass caterpillars, abundance quantify richness phylogenetic macro‐moths development. Additionally, explore life‐history condition species' At community level, find decreases moth abundance. We also sharp response phylogeny, leading decrease species more sites. Finally, our study found smaller than larger environments, perhaps highlighting tradeoffs metabolic costs heat favoring over relative benefits dispersal moths. In summary, research underscores far‐reaching consequences on provides compelling evidence forests alone may not be sufficient safeguard biodiversity cities.

Language: Английский

---

Urbanization Impacts Top Predators and Alters Biotic Interactions in Predator–Prey–Mutualistic Communities of Urban Dry Grasslands

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 1, 2025

Urbanization as a major driver of global change modifies biodiversity patterns and the abundance interactions among species or functional groups. For example, urbanization can negatively impact both predator-prey mutualistic relationships. However, empirical studies on how biotic, particularly multitrophic, are still limited. In this study, we applied framework focused predator-prey-mutualistic relationship involving communities insect-pollinated vascular plants, pollinators (bees hoverflies), predatory spiders, sand lizards top predators to test (i) effect richness at different trophic levels (ii) regulation biotic using correlations between abundances proxy. By assessing 56 dry grassland patches in Berlin, Germany, found that higher (sand lizard well spider abundance) were significantly impacted by whereas affected lesser degree (only abundance, but not richness). contrast, plants urbanization. Path analyses revealed significant relationships low-urbanized areas. these areas, observed bottom-up-regulated (plants-pollinators, pollinators-predatory spiders), top-down-regulated lizards-pollinators, spiders-pollinators). no highly urbanized sites. Our results suggest bottom-up is stronger than top-down To our knowledge, first study examine effects determine whether regulated processes. These findings enhance understanding multitrophic urban environments their associated ecosystem services, such pollination, thereby supporting efforts conservation.

Language: Английский

---