Individually mark–mass release–resight study elucidates effects of patch characteristics and distance on host patch location by an insect herbivore

Zeynep Sezen, Derek M. Johnson, Katriona Shea

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

1. How organisms locate their hosts is of fundamental importance in a variety of basic and applied ecological fields, including population dynamics, invasive species management and biological control. However, tracking movement of small organisms, such as insects, poses significant logistical challenges. 2. Mass-release and individual–mark–recapture techniques were combined in an individually mark–mass release–resight (IMMRR) approach to track the movement of over 2000 adult insects in an economically important plant–herbivore system. Despite its widespread use for the biological control of the invasive thistle Carduus nutans, the host-finding behaviour of the thistle head weevil Rhinocyllus conicus has not previously been studied. Insects were released at different distances from a mosaic of artificially created host patches with different areas and number of plants to assess the ecological determinants of patch finding. 3. The study was able to characterize the within-season dispersal abilities and between-patch movement patterns of R. conicus. Weevils found host plant patches over 900 m away. Large patches, with tall plants, situated close to the nearest release point had the highest first R. conicus resights. Patch area and plant density had no effect on the number of weevils resighted per plant; however, R. conicus individuals were more likely to disperse out of small patches and into large patches. 4. By understanding how R. conicus locates host patches of C. nutans, management activities for the control of this invasive thistle can be better informed. A deeper mechanistic understanding of host location will also improve prediction of coupled plant–herbivore spatial dynamics in general.

Original languageEnglish (US)
Pages (from-to)273-282
Number of pages10
JournalEcological Entomology
Volume42
Issue number3
DOIs
StatePublished - Jun 1 2017

Fingerprint

Rhinocyllus conicus
herbivore
herbivores
insect
host location
insects
Carduus nutans
Curculionidae
biological control
host seeking
invasive species
host plant
imagos
organisms
population dynamics
plant density
host plants
effect
prediction

All Science Journal Classification (ASJC) codes

  • Ecology
  • Insect Science

Cite this

@article{f62eaefe22c5465fa7e3256827b7eada,
title = "Individually mark–mass release–resight study elucidates effects of patch characteristics and distance on host patch location by an insect herbivore",
abstract = "1. How organisms locate their hosts is of fundamental importance in a variety of basic and applied ecological fields, including population dynamics, invasive species management and biological control. However, tracking movement of small organisms, such as insects, poses significant logistical challenges. 2. Mass-release and individual–mark–recapture techniques were combined in an individually mark–mass release–resight (IMMRR) approach to track the movement of over 2000 adult insects in an economically important plant–herbivore system. Despite its widespread use for the biological control of the invasive thistle Carduus nutans, the host-finding behaviour of the thistle head weevil Rhinocyllus conicus has not previously been studied. Insects were released at different distances from a mosaic of artificially created host patches with different areas and number of plants to assess the ecological determinants of patch finding. 3. The study was able to characterize the within-season dispersal abilities and between-patch movement patterns of R. conicus. Weevils found host plant patches over 900 m away. Large patches, with tall plants, situated close to the nearest release point had the highest first R. conicus resights. Patch area and plant density had no effect on the number of weevils resighted per plant; however, R. conicus individuals were more likely to disperse out of small patches and into large patches. 4. By understanding how R. conicus locates host patches of C. nutans, management activities for the control of this invasive thistle can be better informed. A deeper mechanistic understanding of host location will also improve prediction of coupled plant–herbivore spatial dynamics in general.",
author = "Zeynep Sezen and Johnson, {Derek M.} and Katriona Shea",
year = "2017",
month = "6",
day = "1",
doi = "10.1111/een.12383",
language = "English (US)",
volume = "42",
pages = "273--282",
journal = "Ecological Entomology",
issn = "0307-6946",
publisher = "Wiley-Blackwell",
number = "3",

}

Individually mark–mass release–resight study elucidates effects of patch characteristics and distance on host patch location by an insect herbivore. / Sezen, Zeynep; Johnson, Derek M.; Shea, Katriona.

In: Ecological Entomology, Vol. 42, No. 3, 01.06.2017, p. 273-282.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Individually mark–mass release–resight study elucidates effects of patch characteristics and distance on host patch location by an insect herbivore

AU - Sezen, Zeynep

AU - Johnson, Derek M.

AU - Shea, Katriona

PY - 2017/6/1

Y1 - 2017/6/1

N2 - 1. How organisms locate their hosts is of fundamental importance in a variety of basic and applied ecological fields, including population dynamics, invasive species management and biological control. However, tracking movement of small organisms, such as insects, poses significant logistical challenges. 2. Mass-release and individual–mark–recapture techniques were combined in an individually mark–mass release–resight (IMMRR) approach to track the movement of over 2000 adult insects in an economically important plant–herbivore system. Despite its widespread use for the biological control of the invasive thistle Carduus nutans, the host-finding behaviour of the thistle head weevil Rhinocyllus conicus has not previously been studied. Insects were released at different distances from a mosaic of artificially created host patches with different areas and number of plants to assess the ecological determinants of patch finding. 3. The study was able to characterize the within-season dispersal abilities and between-patch movement patterns of R. conicus. Weevils found host plant patches over 900 m away. Large patches, with tall plants, situated close to the nearest release point had the highest first R. conicus resights. Patch area and plant density had no effect on the number of weevils resighted per plant; however, R. conicus individuals were more likely to disperse out of small patches and into large patches. 4. By understanding how R. conicus locates host patches of C. nutans, management activities for the control of this invasive thistle can be better informed. A deeper mechanistic understanding of host location will also improve prediction of coupled plant–herbivore spatial dynamics in general.

AB - 1. How organisms locate their hosts is of fundamental importance in a variety of basic and applied ecological fields, including population dynamics, invasive species management and biological control. However, tracking movement of small organisms, such as insects, poses significant logistical challenges. 2. Mass-release and individual–mark–recapture techniques were combined in an individually mark–mass release–resight (IMMRR) approach to track the movement of over 2000 adult insects in an economically important plant–herbivore system. Despite its widespread use for the biological control of the invasive thistle Carduus nutans, the host-finding behaviour of the thistle head weevil Rhinocyllus conicus has not previously been studied. Insects were released at different distances from a mosaic of artificially created host patches with different areas and number of plants to assess the ecological determinants of patch finding. 3. The study was able to characterize the within-season dispersal abilities and between-patch movement patterns of R. conicus. Weevils found host plant patches over 900 m away. Large patches, with tall plants, situated close to the nearest release point had the highest first R. conicus resights. Patch area and plant density had no effect on the number of weevils resighted per plant; however, R. conicus individuals were more likely to disperse out of small patches and into large patches. 4. By understanding how R. conicus locates host patches of C. nutans, management activities for the control of this invasive thistle can be better informed. A deeper mechanistic understanding of host location will also improve prediction of coupled plant–herbivore spatial dynamics in general.

UR - http://www.scopus.com/inward/record.url?scp=85018923730&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85018923730&partnerID=8YFLogxK

U2 - 10.1111/een.12383

DO - 10.1111/een.12383

M3 - Article

AN - SCOPUS:85018923730

VL - 42

SP - 273

EP - 282

JO - Ecological Entomology

JF - Ecological Entomology

SN - 0307-6946

IS - 3

ER -