Trait contributions to fish community assembly emerge from trophic interactions in an individual-based model

Henrique C. Giacomini, Donald L. DeAngelis, Joel C. Trexler, Miguel Petrere

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Community ecology seeks to understand and predict the characteristics of communities that can develop under different environmental conditions, but most theory has been built on analytical models that are limited in the diversity of species traits that can be considered simultaneously. We address that limitation with an individual-based model to simulate assembly of fish communities characterized by life history and trophic interactions with multiple physiological tradeoffs as constraints on species performance. Simulation experiments were carried out to evaluate the distribution of 6 life history and 4 feeding traits along gradients of resource productivity and prey accessibility. These experiments revealed that traits differ greatly in importance for species sorting along the gradients. Body growth rate emerged as a key factor distinguishing community types and defining patterns of community stability and coexistence, followed by egg size and maximum body size. Dominance by fast-growing, relatively large, and fecund species occurred more frequently in cases where functional responses were saturated (i.e. high productivity and/or prey accessibility). Such dominance was associated with large biomass fluctuations and priority effects, which prevented richness from increasing with productivity and may have limited selection on secondary traits, such as spawning strategies and relative size at maturation. Our results illustrate that the distribution of species traits and the consequences for community dynamics are intimately linked and strictly dependent on how the benefits and costs of these traits are balanced across different conditions.

Original languageEnglish
Pages (from-to)32-43
Number of pages12
JournalEcological Modelling
Volume251
DOIs
StatePublished - Feb 4 2013

Fingerprint

individual-based model
trophic interaction
fish
productivity
accessibility
life history
community ecology
functional response
egg size
community dynamics
sorting
coexistence
maturation
body size
spawning
experiment
environmental conditions
biomass
resource
cost

Keywords

  • Community dynamics
  • Environmental gradients
  • Fish diversity
  • Life history
  • Priority effects
  • Tradeoffs

ASJC Scopus subject areas

  • Ecological Modeling

Cite this

Trait contributions to fish community assembly emerge from trophic interactions in an individual-based model. / Giacomini, Henrique C.; DeAngelis, Donald L.; Trexler, Joel C.; Petrere, Miguel.

In: Ecological Modelling, Vol. 251, 04.02.2013, p. 32-43.

Research output: Contribution to journalArticle

Giacomini, Henrique C. ; DeAngelis, Donald L. ; Trexler, Joel C. ; Petrere, Miguel. / Trait contributions to fish community assembly emerge from trophic interactions in an individual-based model. In: Ecological Modelling. 2013 ; Vol. 251. pp. 32-43.
@article{3de057c74016463e93ac64d0e4877deb,
title = "Trait contributions to fish community assembly emerge from trophic interactions in an individual-based model",
abstract = "Community ecology seeks to understand and predict the characteristics of communities that can develop under different environmental conditions, but most theory has been built on analytical models that are limited in the diversity of species traits that can be considered simultaneously. We address that limitation with an individual-based model to simulate assembly of fish communities characterized by life history and trophic interactions with multiple physiological tradeoffs as constraints on species performance. Simulation experiments were carried out to evaluate the distribution of 6 life history and 4 feeding traits along gradients of resource productivity and prey accessibility. These experiments revealed that traits differ greatly in importance for species sorting along the gradients. Body growth rate emerged as a key factor distinguishing community types and defining patterns of community stability and coexistence, followed by egg size and maximum body size. Dominance by fast-growing, relatively large, and fecund species occurred more frequently in cases where functional responses were saturated (i.e. high productivity and/or prey accessibility). Such dominance was associated with large biomass fluctuations and priority effects, which prevented richness from increasing with productivity and may have limited selection on secondary traits, such as spawning strategies and relative size at maturation. Our results illustrate that the distribution of species traits and the consequences for community dynamics are intimately linked and strictly dependent on how the benefits and costs of these traits are balanced across different conditions.",
keywords = "Community dynamics, Environmental gradients, Fish diversity, Life history, Priority effects, Tradeoffs",
author = "Giacomini, {Henrique C.} and DeAngelis, {Donald L.} and Trexler, {Joel C.} and Miguel Petrere",
year = "2013",
month = "2",
day = "4",
doi = "10.1016/j.ecolmodel.2012.12.003",
language = "English",
volume = "251",
pages = "32--43",
journal = "Ecological Modelling",
issn = "0304-3800",
publisher = "Elsevier",

}

TY - JOUR

T1 - Trait contributions to fish community assembly emerge from trophic interactions in an individual-based model

AU - Giacomini, Henrique C.

AU - DeAngelis, Donald L.

AU - Trexler, Joel C.

AU - Petrere, Miguel

PY - 2013/2/4

Y1 - 2013/2/4

N2 - Community ecology seeks to understand and predict the characteristics of communities that can develop under different environmental conditions, but most theory has been built on analytical models that are limited in the diversity of species traits that can be considered simultaneously. We address that limitation with an individual-based model to simulate assembly of fish communities characterized by life history and trophic interactions with multiple physiological tradeoffs as constraints on species performance. Simulation experiments were carried out to evaluate the distribution of 6 life history and 4 feeding traits along gradients of resource productivity and prey accessibility. These experiments revealed that traits differ greatly in importance for species sorting along the gradients. Body growth rate emerged as a key factor distinguishing community types and defining patterns of community stability and coexistence, followed by egg size and maximum body size. Dominance by fast-growing, relatively large, and fecund species occurred more frequently in cases where functional responses were saturated (i.e. high productivity and/or prey accessibility). Such dominance was associated with large biomass fluctuations and priority effects, which prevented richness from increasing with productivity and may have limited selection on secondary traits, such as spawning strategies and relative size at maturation. Our results illustrate that the distribution of species traits and the consequences for community dynamics are intimately linked and strictly dependent on how the benefits and costs of these traits are balanced across different conditions.

AB - Community ecology seeks to understand and predict the characteristics of communities that can develop under different environmental conditions, but most theory has been built on analytical models that are limited in the diversity of species traits that can be considered simultaneously. We address that limitation with an individual-based model to simulate assembly of fish communities characterized by life history and trophic interactions with multiple physiological tradeoffs as constraints on species performance. Simulation experiments were carried out to evaluate the distribution of 6 life history and 4 feeding traits along gradients of resource productivity and prey accessibility. These experiments revealed that traits differ greatly in importance for species sorting along the gradients. Body growth rate emerged as a key factor distinguishing community types and defining patterns of community stability and coexistence, followed by egg size and maximum body size. Dominance by fast-growing, relatively large, and fecund species occurred more frequently in cases where functional responses were saturated (i.e. high productivity and/or prey accessibility). Such dominance was associated with large biomass fluctuations and priority effects, which prevented richness from increasing with productivity and may have limited selection on secondary traits, such as spawning strategies and relative size at maturation. Our results illustrate that the distribution of species traits and the consequences for community dynamics are intimately linked and strictly dependent on how the benefits and costs of these traits are balanced across different conditions.

KW - Community dynamics

KW - Environmental gradients

KW - Fish diversity

KW - Life history

KW - Priority effects

KW - Tradeoffs

UR - http://www.scopus.com/inward/record.url?scp=84872234146&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872234146&partnerID=8YFLogxK

U2 - 10.1016/j.ecolmodel.2012.12.003

DO - 10.1016/j.ecolmodel.2012.12.003

M3 - Article

AN - SCOPUS:84872234146

VL - 251

SP - 32

EP - 43

JO - Ecological Modelling

JF - Ecological Modelling

SN - 0304-3800

ER -