Habitat management on multiple spatial scales can enhance bee pollination and crop yield in tropical homegardens

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Habitat management on multiple spatial scales can enhance bee pollination and crop yield in tropical homegardens. / Motzke, Iris; Klein, Alexandra Maria; Saleh, Shahabuddin et al.
In: Agriculture, Ecosystems and Environment, Vol. 223, 01.05.2016, p. 144-151.

Research output: Journal contributionsJournal articlesResearchpeer-review

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@article{2169469a4a7646248b0aaed8050142b6,
title = "Habitat management on multiple spatial scales can enhance bee pollination and crop yield in tropical homegardens",
abstract = "Pollinator populations respond to environmental changes operating on different spatial scales, but the contribution of scale-dependent habitat management to crop pollination and yield-gap reduction is little understood. Here, we analyze how bee abundance and their effects on cucumber production in tropical homegardens is driven by factors measured on three spatial scales; the (1) homegarden scale (flower cover of the focal homegarden); the (2) adjacent-habitat scale (amount of homegarden habitat within a 200 m radius around the focal homegarden); and the (3) landscape scale (distance of the focal homegarden to the nearest forest from 0 to 2200 m). We also evaluate bee responses according to functional traits such as body size. We found that bees were affected by factors on multiple spatial scales. On the homegarden scale, the percentage flower cover best predicted pollinator attraction, if, on the adjacent-habitat scale the percentage of surrounding homegardens was at least 20%. On the landscape scale, bee abundance, mainly of small species, increased when homegardens were closer to the forest.Increasing abundance of flower-visiting bees increased cucumber yield, with solitary bees being the most abundant flower visitors. We predicted that a 50% loss in bee abundance would translate into a 47% yield and associated income decline. Homegardens with a flower cover of 50%, being surrounded by a homegarden area of 50% and being established 1500 m).Our work suggests that farmers need to be aware of management practices not only at the local and landscape scale but also on the adjacent-habitat scale. Only then farmers can increase wild bee populations to reduce crop yield gaps through pollination services.",
keywords = "Body size, Cucumis sativus, Flower cover, Food security, Indonesia, Net income, Pollinators, Ecosystems Research",
author = "Iris Motzke and Klein, {Alexandra Maria} and Shahabuddin Saleh and Teja Tscharntke and Wanger, {Thomas Cherico}",
year = "2016",
month = may,
day = "1",
doi = "10.1016/j.agee.2016.03.001",
language = "English",
volume = "223",
pages = "144--151",
journal = "Agriculture, Ecosystems and Environment",
issn = "0167-8809",
publisher = "Elsevier B.V.",

}

RIS

TY - JOUR

T1 - Habitat management on multiple spatial scales can enhance bee pollination and crop yield in tropical homegardens

AU - Motzke, Iris

AU - Klein, Alexandra Maria

AU - Saleh, Shahabuddin

AU - Tscharntke, Teja

AU - Wanger, Thomas Cherico

PY - 2016/5/1

Y1 - 2016/5/1

N2 - Pollinator populations respond to environmental changes operating on different spatial scales, but the contribution of scale-dependent habitat management to crop pollination and yield-gap reduction is little understood. Here, we analyze how bee abundance and their effects on cucumber production in tropical homegardens is driven by factors measured on three spatial scales; the (1) homegarden scale (flower cover of the focal homegarden); the (2) adjacent-habitat scale (amount of homegarden habitat within a 200 m radius around the focal homegarden); and the (3) landscape scale (distance of the focal homegarden to the nearest forest from 0 to 2200 m). We also evaluate bee responses according to functional traits such as body size. We found that bees were affected by factors on multiple spatial scales. On the homegarden scale, the percentage flower cover best predicted pollinator attraction, if, on the adjacent-habitat scale the percentage of surrounding homegardens was at least 20%. On the landscape scale, bee abundance, mainly of small species, increased when homegardens were closer to the forest.Increasing abundance of flower-visiting bees increased cucumber yield, with solitary bees being the most abundant flower visitors. We predicted that a 50% loss in bee abundance would translate into a 47% yield and associated income decline. Homegardens with a flower cover of 50%, being surrounded by a homegarden area of 50% and being established 1500 m).Our work suggests that farmers need to be aware of management practices not only at the local and landscape scale but also on the adjacent-habitat scale. Only then farmers can increase wild bee populations to reduce crop yield gaps through pollination services.

AB - Pollinator populations respond to environmental changes operating on different spatial scales, but the contribution of scale-dependent habitat management to crop pollination and yield-gap reduction is little understood. Here, we analyze how bee abundance and their effects on cucumber production in tropical homegardens is driven by factors measured on three spatial scales; the (1) homegarden scale (flower cover of the focal homegarden); the (2) adjacent-habitat scale (amount of homegarden habitat within a 200 m radius around the focal homegarden); and the (3) landscape scale (distance of the focal homegarden to the nearest forest from 0 to 2200 m). We also evaluate bee responses according to functional traits such as body size. We found that bees were affected by factors on multiple spatial scales. On the homegarden scale, the percentage flower cover best predicted pollinator attraction, if, on the adjacent-habitat scale the percentage of surrounding homegardens was at least 20%. On the landscape scale, bee abundance, mainly of small species, increased when homegardens were closer to the forest.Increasing abundance of flower-visiting bees increased cucumber yield, with solitary bees being the most abundant flower visitors. We predicted that a 50% loss in bee abundance would translate into a 47% yield and associated income decline. Homegardens with a flower cover of 50%, being surrounded by a homegarden area of 50% and being established 1500 m).Our work suggests that farmers need to be aware of management practices not only at the local and landscape scale but also on the adjacent-habitat scale. Only then farmers can increase wild bee populations to reduce crop yield gaps through pollination services.

KW - Body size

KW - Cucumis sativus

KW - Flower cover

KW - Food security

KW - Indonesia

KW - Net income

KW - Pollinators

KW - Ecosystems Research

UR - http://www.scopus.com/inward/record.url?scp=84960145166&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/2af02f7a-c5af-3992-bf6f-a45ed0992dd8/

U2 - 10.1016/j.agee.2016.03.001

DO - 10.1016/j.agee.2016.03.001

M3 - Journal articles

AN - SCOPUS:84960145166

VL - 223

SP - 144

EP - 151

JO - Agriculture, Ecosystems and Environment

JF - Agriculture, Ecosystems and Environment

SN - 0167-8809

ER -

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