7 Works

Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry

Marvin Choquet, Gauthier Burckard, Stig Skreslet, Galice Hoarau & Janne E. Søreide
In the North Atlantic and the Arctic Ocean, four species of the copepod genus Calanus dominate the zooplankton biomass. Because of their morphological resemblance, knowledge of their respective distribution range has long been biased by misidentification, until the recent use of molecular tools uncovered numerous areas of sympatry. As hybridization between Calanus finmarchicus and C. glacialis has been claimed in the East-Canadian Arctic based on microsatellites, we investigated further the potential for interbreeding in newly...

Fear the reaper: ungulate carcasses may generate an ephemeral landscape of fear for rodents

Shane Frank, Rakel Blaalid, Martin Mayer, Andreas Zedrosser & Sam Steyaert
Animal carcasses provide an ephemeral pulse of nutrients for scavengers that utilize them. Carcass sites can increase species interactions and/or ephemeral, localized landscapes of fear for prey within the vicinity. Few studies have applied the landscape of fear to carcasses. Here we use a mass die-off of reindeer caused by lightning in Norway to test whether rodents avoided larger scavengers (e.g. corvids and fox). We used the presence and abundance of faeces as a proxy...

Past and future decline of tropical pelagic biodiversity

Moriaki Yasuhara, Chih-Lin Wei, Michal Kucera, Mark Costello, Derek Tittensor, Wolfgang Kiessling, Timothy Bonebrake, Clay Tabor, Ran Feng, Andrés Baselga, Kerstin Kretschmer, Buntarou Kusumoto & Yasuhiro Kubota
A major research question concerning global pelagic biodiversity remains unanswered: when did the apparent tropical biodiversity depression (i.e., bimodality of latitudinal diversity gradient [LDG]) begin? The bimodal LDG may be a consequence of recent ocean warming or of deep-time evolutionary speciation and extinction processes. Using rich time-slice datasets of planktonic foraminifers, we show here that a unimodal (or only weakly bimodal) diversity gradient, with a plateau in the tropics, occurred during the last ice age...

Reconciling seascape genetics and fisheries science in three co-distributed flatfishes

Sara Vandamme, Joost Raeymaekers, Filip Volckaert, Gregory Maes, Karl Cottenie, Eveline Diopere & Federico Calboli
Uncertainty hampers innovative mixed-fisheries management by the scales at which connectivity dynamics are relevant to management objectives. The spatial scale of sustainable stock management is species-specific and depends on ecology, life history and population connectivity. One valuable approach to understand these spatial scales is to determine to what extent population genetic structure correlates with the oceanographic environment. Here we compare the level of genetic connectivity in three co-distributed and commercially exploited demersal flatfish species living...

Complexity within an oil palm monoculture: the effects of habitat variability and rainfall on adult dragonfly (Odonata) communities.

Sarah H. Luke, Andreas Dwi Advento, Rory A. Dow, Anak Agung Ketut Aryawan, Holly Barclay, Amy E. Eycott, Julie K. Hinsch, Candra Kurniawan, Mohammad Naim, Darren J. Mann, Pujianto Pujianto, Dedi Purnomo, T. Dzulfikar S. Rambe, Eleanor M. Slade, Soeprapto Soeprapto, Sudharto Ps, Suhardi Suhardi, Ribka Sionita Tarigan, Resti Wahyuningsih, Rudy Harto Widodo, Jean-Pierre Caliman, Jake L. Snaddon, William A. Foster & Edgar C. Turner
Recent expansion of oil palm agriculture has resulted in loss of forest habitat and forest-dependent species. However, large numbers of species – particularly insects – can persist within plantations. This study focuses on Odonata (dragonflies and damselflies): a charismatic indicator taxon, and a potentially valuable pest control agent. We surveyed adult Odonata populations biannually over three years within an industrial oil palm plantation in Sumatra, Indonesia. We assessed the effects of rainfall (including an El...

Genotypes of 6 InDel markers for species identification from the Calanus culture at the EMBRC-ERIC laboratory for low-level trophic interactions, NTNU SeaLab

Elise Skottene, Ann M. Tarrant, Dag Altin, Rolf Erik Olsen, Marvin Choquet & Kristina Ø. Kvile
Late developmental stages of marine copepods in the genus Calanus can spend extended periods in a dormant stage (diapause). During the growth season, copepods must accumulate sufficient lipid stores to survive diapause. Predation risk is often overlooked as a potential diapause-inducing cue. We tested experimentally if predation risk in combination with high or low food availability leads to differences in lipid metabolism, and potentially diapause initiation. Expression of lipid metabolism genes showed that food availability...

Stacking microscopy images of the pteropod Limacina bulimoides

Le Qin Choo, Thijs M. P. Bal, Erica Goetze & Katja T. C. A. Peijnenburg
Pteropods, a group of holoplanktonic gastropods, are regarded as bioindicators of the effects of ocean acidification on open ocean ecosystems, because their thin aragonitic shells are susceptible to dissolution. While there have been recent efforts to address their capacity for physiological acclimation, it is also important to gain predictive understanding of their ability to adapt to future ocean conditions. However, little is known about the levels of genetic variation and large scale population structuring of...

Registration Year

  • 2020

Resource Types

  • Dataset


  • Nord University
  • Naturalis Biodiversity Center
  • Ghent University
  • University of Erlangen-Nuremberg
  • Monash University Malaysia
  • University of Cambridge
  • Aarhus University
  • Dalhousie University
  • University of Guelph
  • University of Southampton