2 Works

Human-induced habitat fragmentation effects on connectivity, diversity and population persistence of an endemic fish, Percilia irwini, in the Biobío river basin (Chile)

Francisca Valenzuela-Aguayo, Gregory McCracken, Aliro Manosalva, Evelyn Habit & Daniel Ruzzante
An understanding of how genetic variability is distributed in space is fundamental for the conservation and maintenance of diversity in spatially fragmented and vulnerable populations. While fragmentation can occur from natural barriers it can also be exacerbated by anthropogenic activities such as hydroelectric power plant development. Whatever the source, fragmentation can have significant ecological effects, including the disruptions of migratory processes and gene flow among populations. In Chile, the Biobío river basin exhibits a high...

Data from: Invasive species and postglacial colonization: their effects on the genetic diversity of a Patagonian fish

Iván Vera-Escalona, Evelyn Habit & Daniel E. Ruzzante
The present distribution of Patagonian species is the result of a complex history involving Quaternary refugial populations, Holocene range expansions, and demographic changes occurring during the Anthropocene. Invasive salmonids were introduced in Patagonia during the last century, occupying most rivers and lakes, preying on, and competing with native species, including the fish Galaxias platei. Here we used G. platei as a case study to understand how long-term (i.e. population differentiation during the Holocene) and short-term...

Registration Year

  • 2019

Resource Types

  • Dataset


  • Dalhousie University
  • University of Concepción