Sequential speciation and the diversity of parasitic insects

JEFFREY L Feder; ANDREW A Forbes

doi:10.1111/j.1365-2311.2009.01144.x

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Sequential speciation and the diversity of parasitic insects

Journal article

Open access

Peer reviewed

Sequential speciation and the diversity of parasitic insects

JEFFREY L Feder and ANDREW A Forbes

Ecological entomology, Vol.35(s1), pp.67-76

Accepted 11 October 2009

01/2010

DOI: 10.1111/j.1365-2311.2009.01144.x

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Abstract

A major issue in biology is what generates biodiversity. An important part of the answer may be biodiversity itself. As new species form they may often create new niches, providing an impetus for other organisms to adapt and speciate. This hypothesis of 'cascading' or 'sequential' speciation has been argued to be particularly relevant for host-plant-specific phytophagous insects and their associated parasites. Here, we discuss the empirical and theoretical bases for sequential speciation and its potential significance for understanding the genesis of new life forms. We examine the application of the concept that biodiversity begets biodiversity by palaeontologists, ecologists, and evolutionary biologists to explain current and past distributions of organisms. We look at factors that may promote and restrict sequential speciation and review evidence from phytophagous insects for the process in nature. In particular, we discuss a case study involving the apple maggot fly, Rhagoletis pomonella (Diptera: Tephritidae) and its wasp parasitoid Diachasma alloeum (Hymenoptera: Braconidae). We conclude by outlining a research agenda for testing for sequential speciation in the field. © 2010 The Royal Entomological Society.

Diachasma alloeum

insect diversity

niche creation

Rhagoletis pomonella

sympatric speciation

Details

Title: Subtitle: Sequential speciation and the diversity of parasitic insects
Creators: JEFFREY L Feder - Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, U.S.A
ANDREW A Forbes - Department of Entomology, University of California at Davis, Davis, California, USA
Resource Type: Journal article
Publication Details: Ecological entomology, Vol.35(s1), pp.67-76
Edition: Accepted 11 October 2009
DOI: 10.1111/j.1365-2311.2009.01144.x
ISSN: 0307-6946
eISSN: 1365-2311
Publisher: Blackwell Publishing Ltd
Number of pages: 10
Language: English
Date published: 01/2010
Academic Unit: Biology; University College Courses
Record Identifier: 9984217416002771

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