English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Further trade-offs in Daphnia vertical migration strategies

Duncan, A., Guisande, C., & Lampert, W. (1993). Further trade-offs in Daphnia vertical migration strategies.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-E410-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-E411-8
Genre: Conference Paper

Files

show Files
hide Files
:
duncan_1993.pdf (Any fulltext), 398KB
 
File Permalink:
-
Name:
duncan_1993.pdf
Description:
-
Visibility:
Restricted (Max Planck Institute for Evolutionary Biology, MPLM; )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Duncan, A.1, Author              
Guisande, C.1, Author              
Lampert, W.1, Author              
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

Content

show
hide
Free keywords: -
 Abstract: During a vertical migration study of the Daphnia hyalina x galeata population in Schoehsee (Ploen), the elevation of length-carbon weight regressions and fecundity levels were used as measures of nutritive state in order to distinguish between migration and non-migration strategies and their trade-offs. About three-quarters of the population migrated down to a refuge at the top of the hypolimnion (15 m) during the day but spread themselves within the epilimnion (0-7 m) and metalimnion (9-13 m) at night. The trade-off for the migration strategy was reduced mortality but a poorer nutritive state. With the probability of low visual predation in the dark day-refuge, large numbers of larger-sized migrating individuals survived to exploit the food-rich surface layers at night but unfavorable food conditions during the long daytime hours resulted in lower carbon weights per unit length and reduced fecundities. Only 7% of the population adopted a non-migration strategy by staying at the surface (0-7 m) to exploit the richer food conditions, thus becoming heavier in carbon weight and more fecund. The negative side of the trade-off was an enhanced predation risk as shown by sparse populations of small individuals, primiparous females and very few large individuals.

Details

show
hide
Language(s): eng - English
 Dates: 1993-04
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 262975
Other: 1382/S 36377
 Degree: -

Event

show
hide
Title: Diel vertical migration of zooplankton
Place of Event: Lelystad, The Netherlands
Start-/End Date: 1991-11-03 - 1991-11-08

Legal Case

show

Project information

show

Source 1

show
hide
Title: Diel vertical migration of zooplankton
Source Genre: Issue
 Creator(s):
Ringelberg, Joop, Editor
Affiliations:
-
Publ. Info: -
Pages: IX, 222 S. Volume / Issue: - Sequence Number: - Start / End Page: 99 - 108 Identifier: ISBN: 3-510-47040-0

Source 2

show
hide
Title: Ergebnisse der Limnologie/Advances in Limnology
  Alternative Title : Arch. Hydrobiol. Beih. Ergebn. Limnol.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: IX, 222 S. Volume / Issue: Beiheft 39 Sequence Number: - Start / End Page: - Identifier: ISSN: 0071-1128