4 Works

Data from: Does egg carotenoid improve larval quality in Arctic charr (Salvelinus alpinus)?

Torvald B. Egeland, Jarle Tryti Nordeide & Einar Skarstad Egeland
Females in mutually ornamented species are often less conspicuously ornamented than their male conspecifics. It has been hypothesized that offspring quality may decrease if females invest more resources into ornaments at the expense of resources in eggs. An experiment was carried out to test whether natural variation in carotenoid in the eggs from a wild population of Arctic charr (Salvelinus alpinus) was associated with survival and growth of their offspring until hatching. Wild Arctic charr...

Data to: Carotenoids-based reddish pelvic spines in non-reproducing female and male sticklebacks (Gasterosteus aculeatus) – signalling social dominance?

Karl Kristian Kroken, Axel Aas Sæthre, Ove Nicolaisen, Torvald Blikra Egeland & Jarle Tryti Nordeide
Conspicuous ornaments are often considered a result of evolution by sexual selection. According to the social selection hypothesis, such conspicuous traits may also evolve as badges of status associated with increased boldness or aggression towards conspecifics in conflicts about ecological resources. This study tested predictions from the social selection hypothesis to explain evolution of conspicuous red colour of the pelvic spines of the three-spine stickleback (Gasterosteus aculeatus). Wild non-reproducing sticklebacks were presented to pairs of...

Dataset to study the population genomics of introduced Nile tilapia (Oreochromis niloticus (Linnaeus, 1758)) in the Democratic Republic of the Congo: repeated introductions since colonial times with multiple sources

Mare Geraerts, Carl Vangestel, Tom Artois, Jorge Manuel De Oliveira Fernandes, Michiel W. P. Jorissen, Auguste Chocha Manda, Célestin Danadu Mizani, Karen Smeets, Jos Snoeks, Gontran Sonet, Yang Tingbao, Maarten Van Steenberge, Emmanuel Vreven, Soleil Lunkayilakio Wamuini, Maarten P. M. Vanhove & Tine Huyse
During colonial times, Nile tilapia Oreochromis niloticus (Linnaeus, 1758) was introduced in non-native parts of the Congo Basin (Democratic Republic of the Congo, DRC) for the first time. Currently, it is the most farmed cichlid in the DRC, and is present throughout the Congo Basin. Although Nile tilapia has been reported as an invasive species, documentation of historical introductions into this basin and its consequences are scant. Here, we study the genetic consequences of these...

The biogeography of community assembly: latitude and predation drive variation in community trait distribution in a guild of epifaunal crustaceans

Collin Gross, Collin Gross, J Duffy, Kevin Hovel, Melissa Kardish, Pamela Reynolds, Christoffer Boström, Katharyn Boyer, Mathiew Cusson, Johan Eklöf, Aschwin Engelen, Klemens Eriksson, Joel Fodrie, John Griffin, Clara Hereu, Masakazu Hori, A Randall Hughes, Mikhail Ivanov, Pablo Jorgensen, Claudia Kruschel, Kun-Seop Lee, Jonathan Lefcheck, Karen McGlathery, Per-Olav Moksnes, Masahiro Nakaoka … & Jay Stachowicz
While considerable evidence exists of biogeographic patterns in the intensity of species interactions, the influence of these patterns on variation in community structure is less clear. Using a model selection approach on measures of trait dispersion in crustaceans associated with eelgrass (Zostera marina) spanning 30º of latitude in two oceans, we found that dispersion strongly increased with increasing predation and decreasing latitude. Ocean and epiphyte load appeared as secondary predictors; Pacific communities were more overdispersed...

Registration Year

  • 2022

Resource Types

  • Dataset


  • Nord University
  • Royal Museum for Central Africa
  • College of Charleston
  • University of Liège
  • University of Washington
  • University of Zadar
  • Université du Québec à Chicoutimi
  • University of Groningen
  • University of North Carolina
  • University of Virginia