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作者

Marta Dmitruk;Monika Strzałkowska-Abramek;Małgorzata Bożek;Bożena Denisow

来源

URBAN FORESTRY & URBAN GREENING,Vol.74,Issue1,Article 127651

语言

英文

关键字

作者单位

Departament of Botany and Plant Physiology, University of Life Sciences in Lublin, 20-950 Lublin, Poland;Departament of Botany and Plant Physiology, University of Life Sciences in Lublin, 20-950 Lublin, Poland;USDA Forest Service/Davey Institute, Davey Tree Expert Company, 5 Moon Library, SUNY-ESF, Syracuse, NY 13210, USA;US Geological Survey, Upper Midwest Water Science Center, 8505 Research Way, Middleton, WI 53562, USA;Department of Civil and Environmental Engineering, University of Wisconsin – Madison, Engineering Hall, 1415 Engineering Drive, Madison, WI 53716, USA;Wayne State University, College of Engineering, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA;US Geological Survey, Upper Midwest Water Science Center, 5840 Enterprise Drive, Lansing, MI 48911, USA;University of Wisconsin – Stevens Point, College of Natural Resources, Room 278 Trainer Natural Resources Building, Stevens Point, WI 54481, USA;Department of Environmental Resources Engineering, SUNY ESF, Syracuse, NY 13210, USA;USDA Forest Service, Forest Inventory and Analysis, 5 Moon Library, SUNY-ESF, Syracuse, NY 13210, USA;The Martin Centre for Architecture, Department of Architecture, University of Cambridge, Cambridge CB2 1PX, UK;Department of Mathematics, University of British Columbia, Canada;Institute of Forestry and Conservation, University of Toronto, 33 Willcocks St., Toronto M5S 3B3, Canada;Heinrich Heine University Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany;Newcastle University, School of Architecture, Planning and Landscape, Newcastle upon Tyne, United Kingdom;The University of Bari Aldo Moro, Bari, Italy;University of Missouri-Saint Louis, 223 Research Bldg, Saint Louis, MO 63131, USA;Missouri Department of Conservation, 2360 Highway D, St. Charles, MO 63304, USA

摘要

Urban green areas can play a crucial role in establishing spaces that are valuable for pollinators. However, to help ‘pollinator-friendly’ management of urban areas, complete information on the quantity and quality of available floral reward is needed. In this paper, the nectar and pollen of six Cotoneaster species (Rosaceae) were investigated in a two-year experiment established in Lublin city, SE Poland. In temperate climate, Cotoneaster species can ensure nectar and pollen in the full spring period (May/early June) or in early summer (June). A single species can support pollinators on average for 22.9 days. Flowers of Cotoneaster species produce high quantities of nectar (2.27–9.48 mg per flower) and low amounts of pollen (0.11–0.33 mg per flower). On average, the total sugar yield in Cotoneaster species was 11.5 g/m2 (2.3–22.2 g/m2), whereas the total pollen yield was 1.3 g/m2 (0.8–2.8 g/m2). Due to the high potential for total sugar yield, C. macrophyllus, C. lucidus, and C. horizontalis should be recommended to optimize the management of food resources in urban areas. Honeybee was the main insect visitor (70.1 % of the total number of visitors); therefore, Cotoneaster species can be considered valuable for urban beekeepers. However, conservation schemes for bumblebees (21.3 % of the total number of visitors) might also benefit from arrangements with these shrubs. Nevertheless, considering Cotoneaster species in conservation protocols, good-yielding pollen plants should be introduced to compensate for insufficient nutrient intake from pollen in spring.