@article{fdi:010037675,
  title = {{L}ife history strategies affect climate based spatial synchrony in population dynamics of {W}est {A}frican freshwater fishes},
  author = {{T}edesco, {P}. and {H}ugueny, {B}ernard},
  editor = {},
  language = {{ENG}},
  abstract = {{S}patial synchrony in species abundance is a general phenomenon that has been found in populations representing virtually all major taxa. {D}ispersal among populations and synchronous stochastic effects (the so called "{M}oran effect") are the mechanisms most likely to explain such synchrony patterns. {V}ery few studies have related the degree of spatial synchrony to the biological characteristics of species. {H}ere we present a case where specific predictions can be made to relate river fish species characteristics and synchrony determined exclusively by a {M}oran effect through the expected sensitivity of species to the regional component of environmental stochasticity. {B}y analyzing 23-year time series of abundance estimates in two isolated localities we show that species associated with synchronized reproduction during the wet season, high fecundity, small egg size and high gonado-somatic index (the so called "periodic" strategy) have a higher degree of spatial synchrony in population dynamics than species associated with the opposite traits (the so called "equilibrium" strategy). {T}his is supported by significant relationships ({P} values < 0.01) between species traits and the levels of synchrony after removing taxonomical relatedness. {S}patial synchrony computed from summed annual total catches by groups of species, separated into strategy types also showed a significantly higher degree of synchrony for the periodic (r=0.83) than the equilibrium (r=0.46) group. {R}egional hydrological variability is likely to be partly responsible for the observed synchrony pattern and a regional discharge index showed better relationships with the periodic group, supporting the expected differential effect of regional environmental correlation on population dynamics.},
  keywords = {},
  booktitle = {},
  journal = {{O}ikos},
  volume = {115},
  numero = {1},
  pages = {117--127},
  ISSN = {0030-1299},
  year = {2006},
  DOI = {10.1111/j.2006.0030-1299.14847.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010037675},
}