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The importance of local habitat fragmentation versus landscape composition for biodiversity conservation and ecosystem services in agricultural landscapes - FRAGMENT

English title The importance of local habitat fragmentation versus landscape composition for biodiversity conservation and ecosystem services in agricultural landscapes - FRAGMENT
Applicant Herzog Felix Michael
Number 127632
Funding scheme Project funding (Div. I-III)
Research institution Agroscope Institut für Nachhaltigkeitswissenschaften
Institution of higher education Research Institutes Agroscope - AGS
Main discipline Ecology
Start/End 01.01.2010 - 31.12.2013
Approved amount 478'986.00
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All Disciplines (2)

Discipline
Ecology
Zoology

Keywords (8)

arthropods; cherry trees; habitat fragmentation; landscape ecology; pest control; pollination; Prunus avium; spatial ecology

Lay Summary (English)

Lead
Lay summary
The loss and fragmentation of semi-natural habitats are a major threat to biodiversity in agricultural landscapes, with potential negative consequences for the biological control of pest insects and pollination of crop plants. As habitat loss and fragmentation usually occur together, most existing studies have examined only their combined effect. While habitat loss usually has large, consistently negative effects on biodiversity, the effect of fragmentation per se is little known. Habitat isolation, expressed as the distance to neighbouring habitat patches, is one aspect of habitat fragmentation that is expected to reduce biodiversity. Habitat loss can be expressed as the change of landscape composition, i.e. the reduction of the share of a landscape covered by suitable habitat. The proposed study differentiates between the effect of habitat isolation and landscape composition on biodiversity, pollination and pest control. To this end we planted groups of young cherry trees as standardised habitat patches in 2008, which will be the study sites for 2010 - 2012.Thirty groups of seven trees were established along a gradient of landscape composition. The percentage of woody habitats ranges from 3.6 to 74.2% within 500 m radius around the sites. Independent of this gradient in landscape composition, the study sites have three levels of habitat isolation: Ten of the sites are located at the edge of dense and tall-growing forest to represent no isolation from native habitat. Another 10 sites are connected to small-sized woody habitats such as hedgerows or single trees. The remaining 10 sites are isolated from any woody habitat by at least 100 m distance. Diversity, density and parasitism of arthropods are recorded and analysed with respect to habitat isolation and landscape composition. In addition, experiments are conducted in the field to quantify the influence of predators and parasitoids on black cherry aphids. Further, we study flower visitation and pollination success of the cherry trees. The two ecosystem services aphid control and pollination are analysed with respect to habitat isolation and landscape composition. As the planted cherry trees will be followed over five years, we will be able to test the influence of habitat age on effects of habitat isolation and landscape composition.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

Employees

Publications

Publication
Disentangling multiple drivers of pollination in a landscape-scale experiment
Schüepp C. Herzog F. Entling M. (2014), Disentangling multiple drivers of pollination in a landscape-scale experiment, in Proceedings of the Royal Society B , 281, 20132667.
Habitat amount modulates the effect of patch isolation on host-parasitoid interactions.
Coudrain V., Schüepp C., Herzog F., Albrecht M., Entling M. (2014), Habitat amount modulates the effect of patch isolation on host-parasitoid interactions., in Frontiers in Environmental Science , 2(27), 1-8.
Habitat isolation affects plant-herbivore-enemy interactions on cherry trees
Schüepp C., Uzmann D., Herzog F., Entling M. (2014), Habitat isolation affects plant-herbivore-enemy interactions on cherry trees, in Biological Control , 71, 56-64.
Are land sparing and land sharing real alternatives for European agricultural landscapes?
Herzog F. Schüepp C. (2013), Are land sparing and land sharing real alternatives for European agricultural landscapes?, in Rethinking Agricultural Systems in the UK. Aspects of Applied Biology 121, 109 - 116, Warwick.
Effects of habitat fragmentation on abundance, larval food and parasitism of a spider-hunting wasp
Coudrain V. Herzog F. Entling M.H. (2013), Effects of habitat fragmentation on abundance, larval food and parasitism of a spider-hunting wasp, in PLOS One , 8, e59286.
Wild pollinators enhance fruit set of crops regardless of honey bee abundance
Garibaldi LA Steffan-Dewenter I Winfree R Aizen M A Bommarco R Cunningham S A Kremen C Carval (2013), Wild pollinators enhance fruit set of crops regardless of honey bee abundance, in Science , 339, 1608-1611.
Effects of habitat isolation and predation pressure on an arboreal food-web
Herrmann J.D. Kormann U. Schüepp C. Stocker Y. Herzog F. Entling M.H. (2012), Effects of habitat isolation and predation pressure on an arboreal food-web, in Community Ecology, 13, 82-87.
Contrasting effects of habitat fragmentation, population density, and prey availability on body condition of two orb-weaving spiders
Bucher R & Entling MH (2011), Contrasting effects of habitat fragmentation, population density, and prey availability on body condition of two orb-weaving spiders, in Bucher R & Entling MH , 65, 680-685.
Differential effects of habitat isolation and landscape composition on wasps, bees, and their enemies
Schuepp C. Herrmann J.D. Herzog F. Schmidt-Entling M.H. (2011), Differential effects of habitat isolation and landscape composition on wasps, bees, and their enemies, in Oecologia , 165, 111-117.
The landscape context of aphid-ant-predator interactions on cherry trees
Stutz S. Schmidt-Entling M.H. (2011), The landscape context of aphid-ant-predator interactions on cherry trees, in Biological Control , 57, 37-43.
Arthropod Colonisation of Trees in Fragmented Landscapes Depends on Species Traits
Bucher R. Herrmann J.D. Schüepp C. Herzog F. Schmidt-Entling M.H. (2010), Arthropod Colonisation of Trees in Fragmented Landscapes Depends on Species Traits, in Open Ecoloy Journal , 3, 111-117.
Effects of habitat amount and isolation on biodiversity in fragmented traditional orchards
Bailey D. Schmidt-Entling M.H. Eberhard P. Herrmann J.D. Hofer G. Kormann U. Herzog F. (2010), Effects of habitat amount and isolation on biodiversity in fragmented traditional orchards, in Journal of Applied Ecology , 47, 1003-1013.
Spiders associated with the meadow and tree canopies or orchards respond differently to habitat fragmentation
Herrmann J.D. Bailey D. Hofer G. Herzog F. Schmidt-Entling M.H. (2010), Spiders associated with the meadow and tree canopies or orchards respond differently to habitat fragmentation, in Landscape Ecology , 25, 1375-1384.
Structural versus functional habitat connectivity measures to explain bird diversity in fragmented orchards
Mühlner S. Kormann U. Schmidt-Entling M. H. Herzog F. Bailey D. (2010), Structural versus functional habitat connectivity measures to explain bird diversity in fragmented orchards, in Journal of Landscape Ecology , 3, 52-63.

Collaboration

Group / person Country
Types of collaboration
Universität Bern Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Research Infrastructure
- Exchange of personnel
Universität Landau Germany (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Exchange of personnel

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Rethinking agricultural systems in the UK Talk given at a conference Are land sparing and land sharing real alternatives for European agricultural landscapes? 19.12.2013 Oxford, Great Britain and Northern Ireland Herzog Felix Michael; Schüepp Christof;
Building Bridges in Ecology. 43rd Annual Meeting of the Ecological Society of Germany, Austria and Switzerland Talk given at a conference Land sharing or land sparing: Are these real alternatives for European agricultural landscapes? 02.09.2013 Potsdam, Germany Herzog Felix Michael; Schüepp Christof;
Colloque Abeilles sous haute surveillance, Neuchâtel Talk given at a conference Les pollinisateurs sauvages augmentent la grenaison des cultures indépendamment de l’abondance des abeilles domestiques 21.06.2013 Neuchâtel, Switzerland Schüepp Christof;
Annual Meeting of British Ecological Society Poster ) The role of woody elements in agricultural landscapes for pollination of wild cherry trees 18.12.2012 Birmingham, Great Britain and Northern Ireland Schüepp Christof; Herzog Felix Michael; Schmidt-Entling Martin;
Belize Biodiversity Monitoring Program - 3rd meeting Talk given at a conference Bees as indicator group? 01.11.2012 Belize, Belize Schmidt-Entling Martin; Schüepp Christof;
Multitrophic Interactions Workshop Talk given at a conference The diet of solitary bees and wasps in fragmented landscapes 01.03.2012 Göttingen, Germany Coudrain Valérie;
Entomology Congress 2011 Talk given at a conference The influence of landscape structure on the prey choice of a trap-nesting wasp 20.02.2011 Berlin, Germany, Germany Schmidt-Entling Martin; Schüepp Christof; Herzog Felix Michael;
41st Annual Conference of GFOE 2011 Talk given at a conference Role of woody elements in agricultural landscapes for pollination of young cherry trees 20.02.2011 Oldenburg, Germany, Germany Schmidt-Entling Martin; Herzog Felix Michael; Schüepp Christof;
26th European Congress of Arachnology Talk given at a conference Body condition of spiders in fragmented landscapes: food limitation vs. competition 20.02.2011 Sede Boqer Campus, Israel, Israel Schmidt-Entling Martin;
Schweizer Hymenopteren-Tagung Talk given at a conference Effekte von Habitatverlust und -isolierung auf Wespen, Bienen und deren natürliche Feinde 29.01.2011 Bern, Switzerland, Switzerland Schüepp Christof; Schmidt-Entling Martin; Herzog Felix Michael;
Entomology Congress Talk given at a conference European earwigs (Dermaptera: Forficulidae) increase abundances of the black cherry aphid (Aphidae: Myzus cerasi) on young cherry trees 01.01.2011 Berlin, Germany Schmidt-Entling Martin; Krause Sandra;


Communication with the public

Communication Title Media Place Year
Media relations: print media, online media Nützlinge nutzen Vernetzung: Versuch mit Kirschbäumen auf dreissig Betrieben Agroscope Medienmitteilung 13.11.2013 Rhaeto-Romanic Switzerland German-speaking Switzerland Western Switzerland Italian-speaking Switzerland 2013
Media relations: print media, online media Vernetzte Landschaften nützen Natur und Landwirtschaft Medienmitteilung Universität Koblenz Landau, 20.11.2013 International 2013
Media relations: print media, online media Viele Bestäuber reichen nicht NZZ 264, 13.11.2013 German-speaking Switzerland 2013
Media relations: print media, online media Associer vergers et lisières de forêts Horizons Western Switzerland 2010
Media relations: print media, online media Vernetzt den Artenverlust verhindern Horizonte German-speaking Switzerland 2010

Associated projects

Number Title Start Funding scheme
160253 Effects of spatio-temporal resource availability on pollinators and pest-natural enemies in fragmented agricultural landscapes (FRAGMENT III) 01.01.2016 Project funding (Div. I-III)
114058 The importance of local habitat fragmentation versus landscape composition for biodiversity conservation and ecosystem services in agricultural landscapes 01.12.2006 Project funding (Div. I-III)
114058 The importance of local habitat fragmentation versus landscape composition for biodiversity conservation and ecosystem services in agricultural landscapes 01.12.2006 Project funding (Div. I-III)

Abstract

The loss and fragmentation of semi-natural habitats are a major threat to biodiversity in agricultural landscapes, with potential negative consequences for the biological control of pest insects and pollination of crop plants. As habitat loss and fragmentation usually occur together, most existing studies have examined only their combined effect. While habitat loss usually has large, consistently negative effects on biodiversity, the effect of fragmentation per se is little known. Habitat isolation, expressed as the distance to neighbouring habitat patches, is one aspect of habitat fragmentation that is expected to reduce biodiversity. Habitat loss can be expressed as the change of landscape composition, i.e. the reduction of the share of a landscape covered by suitable habitat. The proposed study differentiates between the effect of habitat isolation and landscape composition on biodiversity, pollination and pest control. In the first field season of the FRAGMENT project in 2007, we studied biodiversity in existing late-successional apple orchards. The results suggested that variation in management and patch size have partly blurred effects of habitat isolation and landscape composition. Therefore, we planted groups of young cherry trees as standardised habitat patches in 2008, which will be the study sites for the proposed project phase. The trees and the surrounding ground vegetation are managed in a standardised manner until the end of 2012. Thirty groups of seven trees were established along a gradient of landscape composition. The percentage of woody habitats ranges from 3.6 to 74.2% within 500 m radius around the sites. Independent of this gradient in landscape composition, the study sites have three levels of habitat isolation: Ten of the sites are located at the edge of dense and tall-growing forest to represent no isolation from native habitat (Fig. 1a). Another 10 sites are connected to small-sized woody habitats such as hedgerows or single trees (Fig. 1b). The remaining 10 sites are isolated from any woody habitat by at least 100 m distance (Fig. 1c). Diversity, density and parasitism of arthropods will be recorded and analysed with respect to habitat isolation and landscape composition. In addition, experiments will be conducted in the field to quantify the influence of predators and parasitoids on black cherry aphids (Homoptera: Aphididae). Further, we will study flower visitation and pollination success of the cherry trees. The two ecosystem services aphid control and pollination will be analysed with respect to habitat isolation and landscape composition. As the planted cherry trees will be followed over five years, we will be able to test the influence of habitat age on effects of habitat isolation and landscape composition.
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