Effect of food and density on development of typical and cannibalistic salamander larvae in Ambystoma tigrinum nebulosum

James Collins, James E. Cheek

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Two subspecies of the tiger salamander, Ambystoma tigrinum, have a distinctive polymorphic life history that can include four adult morphs as well as typical and cannibalistic larval morphs. We evaluated the effect of environment on development of larval morphology in two laboratory experiments. In Experiment I, 180 larvae were raised in individual 3-liter containers and fed one of three food levels. Larvae in Experiment II received one of two levels of food, and were raised at three densities: one larva per 3 liters of water (50 containers), three larvae per 22 liters of water (18 containers), or seven larvae per 22 liters of water (18 containers). Cannibalistic morphs developed only in nine containers at the highest density, and their occurrence was independent of the two food levels. Our results suggest the typical and cannibalistic larvae which occur in some populations of Ambystoma tigrinum nebulosum is an environmentally induced developmental polymorphism that results from some individuals responding to the environment differently than others. This difference in response may or may not be associated with genetic differences between these morphs. Based on our results we cannot discriminate between two models that differ in their assumptions about the genetic background of individual larvae.

Original languageEnglish (US)
Pages (from-to)77-84
Number of pages8
JournalIntegrative and Comparative Biology
Volume23
Issue number1
DOIs
StatePublished - 1983

Fingerprint

Ambystoma
Ambystoma tigrinum
larvae
Urodela
Container
salamanders and newts
food
Containers
Larva
containers
Food
water
morphs
Water
experiment
laboratory experiment
Experiment
Experiments
Polymorphism
polymorphism

ASJC Scopus subject areas

  • Molecular Biology
  • Statistics and Probability
  • Computational Mathematics
  • Condensed Matter Physics
  • Social Sciences(all)
  • Plant Science
  • Animal Science and Zoology

Cite this

@article{da893a6c503544b8a8f2bb9a7f12d91b,
title = "Effect of food and density on development of typical and cannibalistic salamander larvae in Ambystoma tigrinum nebulosum",
abstract = "Two subspecies of the tiger salamander, Ambystoma tigrinum, have a distinctive polymorphic life history that can include four adult morphs as well as typical and cannibalistic larval morphs. We evaluated the effect of environment on development of larval morphology in two laboratory experiments. In Experiment I, 180 larvae were raised in individual 3-liter containers and fed one of three food levels. Larvae in Experiment II received one of two levels of food, and were raised at three densities: one larva per 3 liters of water (50 containers), three larvae per 22 liters of water (18 containers), or seven larvae per 22 liters of water (18 containers). Cannibalistic morphs developed only in nine containers at the highest density, and their occurrence was independent of the two food levels. Our results suggest the typical and cannibalistic larvae which occur in some populations of Ambystoma tigrinum nebulosum is an environmentally induced developmental polymorphism that results from some individuals responding to the environment differently than others. This difference in response may or may not be associated with genetic differences between these morphs. Based on our results we cannot discriminate between two models that differ in their assumptions about the genetic background of individual larvae.",
author = "James Collins and Cheek, {James E.}",
year = "1983",
doi = "10.1093/icb/23.1.77",
language = "English (US)",
volume = "23",
pages = "77--84",
journal = "Integrative and Comparative Biology",
issn = "1540-7063",
publisher = "Oxford University Press",
number = "1",

}

TY - JOUR

T1 - Effect of food and density on development of typical and cannibalistic salamander larvae in Ambystoma tigrinum nebulosum

AU - Collins, James

AU - Cheek, James E.

PY - 1983

Y1 - 1983

N2 - Two subspecies of the tiger salamander, Ambystoma tigrinum, have a distinctive polymorphic life history that can include four adult morphs as well as typical and cannibalistic larval morphs. We evaluated the effect of environment on development of larval morphology in two laboratory experiments. In Experiment I, 180 larvae were raised in individual 3-liter containers and fed one of three food levels. Larvae in Experiment II received one of two levels of food, and were raised at three densities: one larva per 3 liters of water (50 containers), three larvae per 22 liters of water (18 containers), or seven larvae per 22 liters of water (18 containers). Cannibalistic morphs developed only in nine containers at the highest density, and their occurrence was independent of the two food levels. Our results suggest the typical and cannibalistic larvae which occur in some populations of Ambystoma tigrinum nebulosum is an environmentally induced developmental polymorphism that results from some individuals responding to the environment differently than others. This difference in response may or may not be associated with genetic differences between these morphs. Based on our results we cannot discriminate between two models that differ in their assumptions about the genetic background of individual larvae.

AB - Two subspecies of the tiger salamander, Ambystoma tigrinum, have a distinctive polymorphic life history that can include four adult morphs as well as typical and cannibalistic larval morphs. We evaluated the effect of environment on development of larval morphology in two laboratory experiments. In Experiment I, 180 larvae were raised in individual 3-liter containers and fed one of three food levels. Larvae in Experiment II received one of two levels of food, and were raised at three densities: one larva per 3 liters of water (50 containers), three larvae per 22 liters of water (18 containers), or seven larvae per 22 liters of water (18 containers). Cannibalistic morphs developed only in nine containers at the highest density, and their occurrence was independent of the two food levels. Our results suggest the typical and cannibalistic larvae which occur in some populations of Ambystoma tigrinum nebulosum is an environmentally induced developmental polymorphism that results from some individuals responding to the environment differently than others. This difference in response may or may not be associated with genetic differences between these morphs. Based on our results we cannot discriminate between two models that differ in their assumptions about the genetic background of individual larvae.

UR - http://www.scopus.com/inward/record.url?scp=77958398128&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77958398128&partnerID=8YFLogxK

U2 - 10.1093/icb/23.1.77

DO - 10.1093/icb/23.1.77

M3 - Article

VL - 23

SP - 77

EP - 84

JO - Integrative and Comparative Biology

JF - Integrative and Comparative Biology

SN - 1540-7063

IS - 1

ER -