Nom du corpus

Corpus Systématique Animale

Titre du document

Role of parthenogenetic natality and emergence from diapausing eggs in the dynamics of some rotifer populations

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • zooplankton
  • birth rate
  • diapausing eggs
  • population dynamics
  • rotifers
Nom du fichier dans la ressource
Arthropodes_v2b_00030
Auteur(s)
  • Elena A. Mnatsakanova 1
  • Leonard V. Polishchuk 2
Affiliation(s)
  • 1) Department of Hydrology, Geographical Faculty, 119899, Moscow, Russia
  • 2) Department of Vertebrate Zoology and General Ecology, Biological Faculty, M. V. Lomonosov Moscow University, 119899, Moscow, Russia
Résumé

There are few quantitative data on the role of emergence from diapausing eggs in population dynamics of natural populations of zooplankton species; to our knowledge, all these concern copepods and ‘cladocerans’. We present here direct estimates of emergence from bottom resting eggs for another important category of freshwater zooplankton, namely rotifers. Three populations of rotifers of the genus Brachionus were studied in a lake. During the study period 10 population increases, each corresponding to an individual sampling interval, were detected. For each interval, emergence from immediately hatching, parthenogenetic eggs calculated on the basis of the Edmondson-Paloheimo model and emergence from diapausing bottom eggs determined in short-term experiments were estimated and compared to each other. We found that three of the population increases observed are entirely explained by parthenogenetic natality. In contrast, emergence from diapausing eggs can, on its own, account for none of population increases. For two population increases, however, it accounts for that part of population growth which remains unexplained by the parthenogenetic natality. For rotifer populations studied, emergence from diapausing eg eggs is generally less important than parthenogenetic births, when both are regarded as an immediate cause of population growth. This is in sharp contrast to the data available for some crustaceans (De Stasio, 1990) where the role of emergence from diapausing eggs in population dynamics has been clearly shown.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
Identifiant ISTEX
A34675D0E5CD294EBC9D0BA8EB5BC0F0F046A44B
Revue

Hydrobiologia

Année de publication
1996
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
9.415
Sous-corpus
  • Arthropodes
Type de publication
Journal
ark:/67375/1BB-5GJPWTJH-Q
Powered by Lodex 9.3.8