NDLI: Field boundaries as barriers to movement of hover flies (Diptera: Syrphidae) in cultivated land

Content Provider	Springer Nature Link
Author	Wratten, Steve D. Bowie, Mike H. Hickman, Janice M. Evans, Alison M. Sedcole, J. Richard Tylianakis, Jason M.
Copyright Year	2003
Abstract	Field boundaries play an important role as refuges, food sources and corridors for invertebrates and vertebrates, and increasing farmland fragmentation impacts on these functions. However, hedgerows and other structures can also impede dispersal by flying insects. The current work uses the pollen of Phacelia tanacetifolia in hover fly guts as a marker to assess hover fly movement in farm landscapes. In the United Kingdom and New Zealand, Phacelia pollen was found in the guts of Ephisyrphus balteatus and Metasyrphus corollae (United Kingdom) and Melanostoma fasciatum (New Zealand) at distances up to 200 m from the source, when there were no barriers between the flowers and the traps used to catch the flies. The rate of decline over distance in the proportion of flies containing pollen was similar for the two countries. The extent to which four replicated field boundary types impeded hover fly movement was tested using post-and-wire fences, lines of poplars (Populus spp.) with gaps, dense poplars and controls (no potential barriers). Phacelia was planted on one side of each boundary, and along the centre of the control plots. The relative presence of the pollen in flies on both sides of the barriers showed that both types of poplar boundary restricted the movement of the flies, but the fence had no effect. In a separate experiment, gravid females of M. fasciatum were captured at a greater height on a shade-cloth fence than were non-gravid females and males. The implications of this work include the functioning and persistence of metapopulations and the influence of field boundaries on population recovery of beneficial invertebrates following pesticide-induced mortality. If field boundaries contribute to a temporal asynchrony between pest and natural enemy populations, this needs to be considered along with the well-established roles of boundaries as refugia for, and sources of, beneficial arthropods.
Starting Page	605
Ending Page	611
Page Count	7
File Format	PDF
ISSN	00298549
Journal	Oecologia
Volume Number	134
Issue Number	4
e-ISSN	14321939
Language	English
Publisher	Springer-Verlag
Publisher Date	2003-01-25
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Field estimates of survival do not reflect ratings of mimetic similarity in wasp-mimicking hover flies

New Syrphidae (Diptera) of North-eastern North America

Data from: The relationship between morphological and behavioral mimicry in hover flies (Diptera: Syrphidae) (Dataset)

Hover flies are efficient pollinators of oilseed rape

New records of hover flies (Diptera, Syrphidae) from Ukraine. IV

Insights into natal origins of migratory Nearctic hover flies (Diptera: Syrphidae): New evidence from stable isotope (δ2H) assignment analyses (Dataset)

New Records of Hover flies (Diptera, Syrphidae) from Ukraine. V

Hover-flies of the genus Melanostoma closely related to Melanostoma dubium (Diptera, Syrphidae)

A key to hover flies of the genus Cheilosia Mg. (Diptera, Syrphidae) of Kazakhstan

Field boundaries as barriers to movement of hover flies (Diptera: Syrphidae) in cultivated land

Similar Documents

Field estimates of survival do not reflect ratings of mimetic similarity in wasp-mimicking hover flies

New Syrphidae (Diptera) of North-eastern North America

Data from: The relationship between morphological and behavioral mimicry in hover flies (Diptera: Syrphidae) (Dataset)

Hover flies are efficient pollinators of oilseed rape

New records of hover flies (Diptera, Syrphidae) from Ukraine. IV

Insights into natal origins of migratory Nearctic hover flies (Diptera: Syrphidae): New evidence from stable isotope (δ2H) assignment analyses (Dataset)

New Records of Hover flies (Diptera, Syrphidae) from Ukraine. V

Hover-flies of the genus Melanostoma closely related to Melanostoma dubium (Diptera, Syrphidae)

A key to hover flies of the genus Cheilosia Mg. (Diptera, Syrphidae) of Kazakhstan

Field boundaries as barriers to movement of hover flies (Diptera: Syrphidae) in cultivated land