Drivers of cultivated and wild plant pollination in urban agroecosystems

Pollination is a vital ecosystem service in urban agriculture. Yet the environmental drivers of both crop and wild plant pollination in urban agroecosystems are still not well understood. Pollination experiments involve the manipulation of pollen transfer between plants, for instance, to study the e...

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Main Authors: Hien Nguyen, Julia Marion Schmack, Monika Egerer
Format: Article
Language:English
Published: Elsevier 2023-11-01
Series:Basic and Applied Ecology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1439179123000518
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author Hien Nguyen
Julia Marion Schmack
Monika Egerer
author_facet Hien Nguyen
Julia Marion Schmack
Monika Egerer
author_sort Hien Nguyen
collection DOAJ
description Pollination is a vital ecosystem service in urban agriculture. Yet the environmental drivers of both crop and wild plant pollination in urban agroecosystems are still not well understood. Pollination experiments involve the manipulation of pollen transfer between plants, for instance, to study the effects of pollinators on fruit and seed production (pollination service). In this study, we conducted a pollination exclusion experiment using four experimental plants: two cultivated plant species, strawberry (Fragaria x ananassa) and chili pepper (Capsicum frutescens), and two wild plant species, buttercup (Ranunculus acris) and clover (Trifolium pratense). We placed experimental plants for over 20 days in 13 urban community gardens in Munich, Germany. We compared fruit and seed mass between “open” and “bagged” flowers and tested the effect of biotic factors (floral resources and pollinator diversity) and abiotic factors (urbanization, microclimate) on pollination service (fruit and seed mass) on the experimental plant species. For the two cultivated plants (F. ananassa and C. frutescens), we found that fruit and seed mass were both positively correlated with temperature and pollinator diversity. For the two wild plants (R. acris and T. pretense), we found that floral abundance was negatively related to R. acris seed mass but was positively related to T. pratense seed mass. In summary, we found that biotic and abiotic parameters affected the plant species studied here in different ways, suggesting that there may be synergies and trade-offs in what factors promote the overall pollination of urban plant communities. Our results suggest that gardeners can potentially increase the pollination services on certain garden plants by providing floral resources for pollinating insects.
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spelling doaj.art-d91ec1d484ce4c83ad8f9087979e75c62023-10-14T04:44:21ZengElsevierBasic and Applied Ecology1439-17912023-11-01728292Drivers of cultivated and wild plant pollination in urban agroecosystemsHien Nguyen0Julia Marion Schmack1Monika Egerer2Urban Productive Ecosystems, Department of Life Science Systems, TUM School of Life Sciences, Technical University of Munich, Hans Carl-von-Carlowitz-Platz 2, 85354 Freising, GermanyUrban Productive Ecosystems, Department of Life Science Systems, TUM School of Life Sciences, Technical University of Munich, Hans Carl-von-Carlowitz-Platz 2, 85354 Freising, GermanyCorresponding author.; Urban Productive Ecosystems, Department of Life Science Systems, TUM School of Life Sciences, Technical University of Munich, Hans Carl-von-Carlowitz-Platz 2, 85354 Freising, GermanyPollination is a vital ecosystem service in urban agriculture. Yet the environmental drivers of both crop and wild plant pollination in urban agroecosystems are still not well understood. Pollination experiments involve the manipulation of pollen transfer between plants, for instance, to study the effects of pollinators on fruit and seed production (pollination service). In this study, we conducted a pollination exclusion experiment using four experimental plants: two cultivated plant species, strawberry (Fragaria x ananassa) and chili pepper (Capsicum frutescens), and two wild plant species, buttercup (Ranunculus acris) and clover (Trifolium pratense). We placed experimental plants for over 20 days in 13 urban community gardens in Munich, Germany. We compared fruit and seed mass between “open” and “bagged” flowers and tested the effect of biotic factors (floral resources and pollinator diversity) and abiotic factors (urbanization, microclimate) on pollination service (fruit and seed mass) on the experimental plant species. For the two cultivated plants (F. ananassa and C. frutescens), we found that fruit and seed mass were both positively correlated with temperature and pollinator diversity. For the two wild plants (R. acris and T. pretense), we found that floral abundance was negatively related to R. acris seed mass but was positively related to T. pratense seed mass. In summary, we found that biotic and abiotic parameters affected the plant species studied here in different ways, suggesting that there may be synergies and trade-offs in what factors promote the overall pollination of urban plant communities. Our results suggest that gardeners can potentially increase the pollination services on certain garden plants by providing floral resources for pollinating insects.http://www.sciencedirect.com/science/article/pii/S1439179123000518Urban pollinatorsUrban agricultureEcosystem servicesUrbanization
spellingShingle Hien Nguyen
Julia Marion Schmack
Monika Egerer
Drivers of cultivated and wild plant pollination in urban agroecosystems
Basic and Applied Ecology
Urban pollinators
Urban agriculture
Ecosystem services
Urbanization
title Drivers of cultivated and wild plant pollination in urban agroecosystems
title_full Drivers of cultivated and wild plant pollination in urban agroecosystems
title_fullStr Drivers of cultivated and wild plant pollination in urban agroecosystems
title_full_unstemmed Drivers of cultivated and wild plant pollination in urban agroecosystems
title_short Drivers of cultivated and wild plant pollination in urban agroecosystems
title_sort drivers of cultivated and wild plant pollination in urban agroecosystems
topic Urban pollinators
Urban agriculture
Ecosystem services
Urbanization
url http://www.sciencedirect.com/science/article/pii/S1439179123000518
work_keys_str_mv AT hiennguyen driversofcultivatedandwildplantpollinationinurbanagroecosystems
AT juliamarionschmack driversofcultivatedandwildplantpollinationinurbanagroecosystems
AT monikaegerer driversofcultivatedandwildplantpollinationinurbanagroecosystems