Phenotypically plastic responses to predation risk are temperature dependent

Thomas M. Luhring, Janna M. Vavra, Clayton E. Cressler, John P. DeLong

Research output: Contribution to journalArticle

Abstract

Predicting how organisms respond to climate change requires that we understand the temperature dependence of fitness in relevant ecological contexts (e.g., with or without predation risk). Predation risk often induces changes to life history traits that are themselves temperature dependent. We explore how perceived predation risk and temperature interact to determine fitness (indicated by the intrinsic rate of increase, r) through changes to its underlying components (net reproductive rate, generation time, and survival) in Daphnia magna. We exposed Daphnia to predation cues from dragonfly naiads early, late, or throughout their ontogeny. Predation risk increased r differentially across temperatures and depending on the timing of exposure to predation cues. The timing of predation risk likewise altered the temperature-dependent response of T and R0. Daphnia at hotter temperatures responded to predation risk by increasing r through a combination of increased R0 and decreased T that together countered an increase in mortality rate. However, only D. magna that experienced predation cues early in ontogeny showed elevated r at colder temperatures. These results highlight the fact that phenotypically plastic responses of life history traits to predation risk can be strongly temperature dependent.

Original languageEnglish (US)
Pages (from-to)709-719
Number of pages11
JournalOecologia
Volume191
Issue number3
DOIs
StatePublished - Nov 1 2019

Fingerprint

predation risk
plastics
plastic
predation
temperature
ontogeny
life history trait
Daphnia magna
Daphnia
fitness
dragonfly
life history
generation time
Anisoptera (Odonata)
mortality
climate change
organisms

Keywords

  • Climate change
  • Fecundity
  • Life history
  • Mortality
  • Reproduction
  • Survivorship

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

Phenotypically plastic responses to predation risk are temperature dependent. / Luhring, Thomas M.; Vavra, Janna M.; Cressler, Clayton E.; DeLong, John P.

In: Oecologia, Vol. 191, No. 3, 01.11.2019, p. 709-719.

Research output: Contribution to journalArticle

Luhring, Thomas M. ; Vavra, Janna M. ; Cressler, Clayton E. ; DeLong, John P. / Phenotypically plastic responses to predation risk are temperature dependent. In: Oecologia. 2019 ; Vol. 191, No. 3. pp. 709-719.
@article{0fc4f6b82905495e98473f601708779b,
title = "Phenotypically plastic responses to predation risk are temperature dependent",
abstract = "Predicting how organisms respond to climate change requires that we understand the temperature dependence of fitness in relevant ecological contexts (e.g., with or without predation risk). Predation risk often induces changes to life history traits that are themselves temperature dependent. We explore how perceived predation risk and temperature interact to determine fitness (indicated by the intrinsic rate of increase, r) through changes to its underlying components (net reproductive rate, generation time, and survival) in Daphnia magna. We exposed Daphnia to predation cues from dragonfly naiads early, late, or throughout their ontogeny. Predation risk increased r differentially across temperatures and depending on the timing of exposure to predation cues. The timing of predation risk likewise altered the temperature-dependent response of T and R0. Daphnia at hotter temperatures responded to predation risk by increasing r through a combination of increased R0 and decreased T that together countered an increase in mortality rate. However, only D. magna that experienced predation cues early in ontogeny showed elevated r at colder temperatures. These results highlight the fact that phenotypically plastic responses of life history traits to predation risk can be strongly temperature dependent.",
keywords = "Climate change, Fecundity, Life history, Mortality, Reproduction, Survivorship",
author = "Luhring, {Thomas M.} and Vavra, {Janna M.} and Cressler, {Clayton E.} and DeLong, {John P.}",
year = "2019",
month = "11",
day = "1",
doi = "10.1007/s00442-019-04523-9",
language = "English (US)",
volume = "191",
pages = "709--719",
journal = "Oecologia",
issn = "0029-8519",
publisher = "Springer Verlag",
number = "3",

}

TY - JOUR

T1 - Phenotypically plastic responses to predation risk are temperature dependent

AU - Luhring, Thomas M.

AU - Vavra, Janna M.

AU - Cressler, Clayton E.

AU - DeLong, John P.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - Predicting how organisms respond to climate change requires that we understand the temperature dependence of fitness in relevant ecological contexts (e.g., with or without predation risk). Predation risk often induces changes to life history traits that are themselves temperature dependent. We explore how perceived predation risk and temperature interact to determine fitness (indicated by the intrinsic rate of increase, r) through changes to its underlying components (net reproductive rate, generation time, and survival) in Daphnia magna. We exposed Daphnia to predation cues from dragonfly naiads early, late, or throughout their ontogeny. Predation risk increased r differentially across temperatures and depending on the timing of exposure to predation cues. The timing of predation risk likewise altered the temperature-dependent response of T and R0. Daphnia at hotter temperatures responded to predation risk by increasing r through a combination of increased R0 and decreased T that together countered an increase in mortality rate. However, only D. magna that experienced predation cues early in ontogeny showed elevated r at colder temperatures. These results highlight the fact that phenotypically plastic responses of life history traits to predation risk can be strongly temperature dependent.

AB - Predicting how organisms respond to climate change requires that we understand the temperature dependence of fitness in relevant ecological contexts (e.g., with or without predation risk). Predation risk often induces changes to life history traits that are themselves temperature dependent. We explore how perceived predation risk and temperature interact to determine fitness (indicated by the intrinsic rate of increase, r) through changes to its underlying components (net reproductive rate, generation time, and survival) in Daphnia magna. We exposed Daphnia to predation cues from dragonfly naiads early, late, or throughout their ontogeny. Predation risk increased r differentially across temperatures and depending on the timing of exposure to predation cues. The timing of predation risk likewise altered the temperature-dependent response of T and R0. Daphnia at hotter temperatures responded to predation risk by increasing r through a combination of increased R0 and decreased T that together countered an increase in mortality rate. However, only D. magna that experienced predation cues early in ontogeny showed elevated r at colder temperatures. These results highlight the fact that phenotypically plastic responses of life history traits to predation risk can be strongly temperature dependent.

KW - Climate change

KW - Fecundity

KW - Life history

KW - Mortality

KW - Reproduction

KW - Survivorship

UR - http://www.scopus.com/inward/record.url?scp=85074287771&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85074287771&partnerID=8YFLogxK

U2 - 10.1007/s00442-019-04523-9

DO - 10.1007/s00442-019-04523-9

M3 - Article

C2 - 31598776

AN - SCOPUS:85074287771

VL - 191

SP - 709

EP - 719

JO - Oecologia

JF - Oecologia

SN - 0029-8519

IS - 3

ER -