Home About Browse Search
Svenska


How far away is the next basket of eggs? Spatial memory and perceived cues shape aggregation patterns in a leaf beetle

Stephan, Jörg and Stenberg, Johan A. and Björkman, Christer (2015). How far away is the next basket of eggs? Spatial memory and perceived cues shape aggregation patterns in a leaf beetle. Ecology. 96:4, 908-914
[Journal article]

[img]
Preview
PDF
182kB

Official URL: http://dx.doi.org/10.1890/14-1143.1.sm

Abstract

Gregarious organisms need to handle the trade-off between increasing food competition and the positive effects of group living, and this is particularly important for ovipositing females. We hypothesized that insect females consider how many conspecifics previously visited a host plant. In a no-choice assay, we show that the gregarious blue willow leaf beetle (Phratora vulgatissima) laid the most eggs and the largest clutches on plants where a sequence of few individual females was released, compared to plants where one or many different females were repeatedly released. Therefore, this species is more sensitive to the indirectly perceived number of conspecifics than the directly perceived number of eggs on a plant. We further hypothesized that females adjust their own intra-plant egg clutch distribution to that of conspecifics and discovered a new behavioral component, i.e., the modulation of distances between clutches. Females adjusted these distances in ways indicating the use of spatial memory, because the largest distance increases were observed on plants with their own clutches, compared to plants with clutches from conspecifics. However, adjustment of aggregation level and distance between clutches occurred only on a suitable, and not on an unsuitable, Salix genotype. We conclude that both behaviors should reduce competition between sibling and non-sibling larvae.

Authors/Creators:Stephan, Jörg and Stenberg, Johan A. and Björkman, Christer
Title:How far away is the next basket of eggs? Spatial memory and perceived cues shape aggregation patterns in a leaf beetle
Series/Journal:Ecology (0012-9658)
Year of publishing :2015
Volume:96
Number:4
Page range:908-914
Number of Pages:7
Publisher:Ecological Society of America
ISSN:0012-9658
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Agris subject categories.:X Agricola extesions > X30 Life sciences
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Agrovoc terms:chrysomelidae, salix, coleoptera, animal behavior
Keywords:blue willow leaf beetle, clutch size, cognitive map, coleoptera, density, distance, egg pooling, kin recognition, learning, relatedness, salix, phratora vulgatissima
URN:NBN:urn:nbn:se:slu:epsilon-e-2697
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2697
Additional ID:
Type of IDID
Web of Science (WoS)000353038200003
ID Code:12345
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
S - Faculty of Forest Sciences
Department:(LTJ, LTV) > Department of Plant Protection Biology
(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:15 Jun 2015 08:49
Metadata Last Modified:15 Jun 2015 08:49

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits