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Plant compensatory growth: a conquering strategy in plant-herbivore interactions ?

Järemo, Johannes LU and Palmqvist, Eva LU (2001) In Evolutionary Ecology 15(2). p.91-102
Abstract
We present a theoretical analysis that considers the phenotypic trait of compensatory growth ability in a context of population dynamics. Our model depicts a system of three interactors: herbivores and two different plant types referred to as ordinary and compensating. The compensating plant type has the ability to increase its intrinsic rate of biomass increase as a response to damage. This compensatory growth ability is maintained at the expense of a reduced growth rate in the absence of damage, where the ordinary plant type has the higher growth rate. Analysis of this system suggests that, even though a compensatory capacity of this kind will not imply an increase in equilibrium plant density, it will give a competitive advantage in... (More)
We present a theoretical analysis that considers the phenotypic trait of compensatory growth ability in a context of population dynamics. Our model depicts a system of three interactors: herbivores and two different plant types referred to as ordinary and compensating. The compensating plant type has the ability to increase its intrinsic rate of biomass increase as a response to damage. This compensatory growth ability is maintained at the expense of a reduced growth rate in the absence of damage, where the ordinary plant type has the higher growth rate. Analysis of this system suggests that, even though a compensatory capacity of this kind will not imply an increase in equilibrium plant density, it will give a competitive advantage in relation to other plants, in the presence of a sufficiently efficient herbivore. Invasion of compensating plants into a population of non-compensating plants is facilitated by a high compensatory growth ability and a high intrinsic rate of plant biomass increase. Conversely, an ordinary plant can invade and outcompete a compensating plant when the herbivore is characterised by a relatively low attack rate, and/or when plant intrinsic growth rate is decreased. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Evolutionary Ecology
volume
15
issue
2
pages
91 - 102
publisher
Springer
external identifiers
  • scopus:0035712320
ISSN
1573-8477
DOI
10.1023/A:1013899006473
language
English
LU publication?
yes
id
ebd431e1-de7d-4259-86a0-fd20d52b50d7 (old id 147496)
date added to LUP
2007-07-03 12:57:04
date last changed
2018-04-08 03:43:56
@article{ebd431e1-de7d-4259-86a0-fd20d52b50d7,
  abstract     = {We present a theoretical analysis that considers the phenotypic trait of compensatory growth ability in a context of population dynamics. Our model depicts a system of three interactors: herbivores and two different plant types referred to as ordinary and compensating. The compensating plant type has the ability to increase its intrinsic rate of biomass increase as a response to damage. This compensatory growth ability is maintained at the expense of a reduced growth rate in the absence of damage, where the ordinary plant type has the higher growth rate. Analysis of this system suggests that, even though a compensatory capacity of this kind will not imply an increase in equilibrium plant density, it will give a competitive advantage in relation to other plants, in the presence of a sufficiently efficient herbivore. Invasion of compensating plants into a population of non-compensating plants is facilitated by a high compensatory growth ability and a high intrinsic rate of plant biomass increase. Conversely, an ordinary plant can invade and outcompete a compensating plant when the herbivore is characterised by a relatively low attack rate, and/or when plant intrinsic growth rate is decreased.},
  author       = {Järemo, Johannes and Palmqvist, Eva},
  issn         = {1573-8477},
  language     = {eng},
  number       = {2},
  pages        = {91--102},
  publisher    = {Springer},
  series       = {Evolutionary Ecology},
  title        = {Plant compensatory growth: a conquering strategy in plant-herbivore interactions ?},
  url          = {http://dx.doi.org/10.1023/A:1013899006473},
  volume       = {15},
  year         = {2001},
}