6 Works

Data from: Increased reproductive investment associated with greater survival and longevity in Cassin’s auklets

Michael E. Johns, Pete Warzybok, Russell W. Bradley, Jaime Jahncke, Mark Lindberg & Greg A. Breed
Individuals increase lifetime reproductive output through a trade-off between investment in future survival and immediate reproductive success. This pattern may be obscured in certain higher quality individuals that possess greater reproductive potential. The Cassin’s auklet (Ptychoramphus aleuticus) is a long-lived species where some individuals exhibit greater reproductive ability through a behavior called double brooding. Here, we analyze 32 years of breeding histories from marked known-age auklets to test whether double brooding increases lifetime fitness despite...

Data from: Drought intensification drives turnover of structure and function in stream invertebrate communities

Thomas W.H. Aspin, Thomas J. Matthews, Kieran Khamis, Alexander M. Milner, Zining Wang, Matthew J. O'Callaghan, Mark E. Ledger & Thomas W. H. Aspin
Climatic extremes are becoming more frequent and intense across much of the globe, potentially transforming the biodiversity and functioning of affected ecosystems. In freshwaters, hydrological extremes such as drought can regulate beta diversity, acting as powerful environmental filters to dictate the complement of species and functional traits found at local and landscape scales. New methods that enable beta diversity and its functional equivalent to be partitioned into turnover (replacement of species/functions) and nestedness-resultant (gain/loss of...

Data from: Biogeographic and anthropogenic correlates of Aleutian Islands plant diversity: a machine-learning approach

Monte Garroutte, Falk Huettmann, Campbell O. Webb & Stefanie M. Ickert-Bond
This is the first comprehensive analysis of vascular plant diversity patterns in the Aleutian Islands to identify and quantify the impact of Aleutian Island distance dispersal barriers, geographical, ecological and anthropogenic factors. Data from public Open Access databases, printed floristic accounts, and from collections made by the primary author were used to develop an Aleutian floristic database. The most common plant distribution pattern was ‘an eastern origin community’, though it compared similarly to the ‘Western’...

Data from: Quantifying the dark data in museum fossil collections as palaeontology undergoes a second digital revolution

Charles R. Marshall, Seth Finnegan, Erica C. Clites, Patricia A. Holroyd, Nicole Bonuso, Crystal Cortez, Edward Davis, Gregory P. Dietl, Patrick S. Druckenmiller, Ron C. Eng, Christine Garcia, Kathryn Estes-Smargiassi, Austin Hendy, Kathy A. Hollis, Holly Little, Elizabeth A. Nesbitt, Peter Roopnarine, Leslie Skibinski, Jann Vendetti & Lisa D. White
Large-scale analysis of the fossil record requires aggregation of palaeontological data from individual fossil localities. Prior to computers these synoptic datasets were compiled by hand, a laborious undertaking that took years of effort and forced palaeontologists to make difficult choices about what types of data to tabulate. The advent of desktop computers ushered in palaeontology’s first digital revolution – online literature-based databases, such as the Paleobiology Database (PBDB). However, the published literature represents only a...

Data from: Migratory culture, population structure and stock identity in North Pacific beluga whales (Delphinapterus leucas)

Greg O'Corry-Crowe, Robert Suydam, Lori Quakenbush, Brooke Potgieter, Lois Harwood, Dennis Litovka, Tatiana Ferrer, John Citta, Vladimir Burkanov, Kathy Frost, Barbara Mahoney & Greg O’Corry-Crowe
The annual return of beluga whales, Delphinapterus leucas, to traditional seasonal locations across the Arctic may involve migratory culture, while the convergence of discrete summering aggregations on common wintering grounds may facilitate outbreeding. Natal philopatry and cultural inheritance, however, has been difficult to assess as earlier studies were of too short a duration, while genetic analyses of breeding patterns, especially across the beluga's Pacific range, have been hampered by inadequate sampling and sparse information on...

Data from: The evolutionary history of polycotylid plesiosaurians

Valentin Fischer, Roger B J Benson, Patrick S Druckenmiller, Hilary F Ketchum & Nathalie Bardet
Polycotylidae is a clade of plesiosaurians that appeared during the Early Cretaceous and became speciose and abundant early in the Late Cretaceous. However, this radiation is poorly understood. Thililua longicollis from the Middle Turonian of Morocco is an enigmatic taxon possessing an atypically long-neck and, as originally reported, a series of unusual cranial features that cause unstable phylogenetic relationships for polycotylids. We reinterpret the holotype specimen of Thililua longicollis and clarify its cranial anatomy. Thililua...

Registration Year

  • 2018

Resource Types

  • Dataset


  • University of Alaska System
  • University of Alaska Fairbanks
  • University of Liège
  • University of Washington
  • Natural History Museum of Los Angeles County
  • University of California, Berkeley
  • Smithsonian Institution
  • North Slope Borough
  • University of Oregon
  • California State University, Fullerton