4 Works

Data from: Rapid scavenging of jellyfish carcasses reveals the importance of gelatinous material to deep-sea food webs

Andrew K. Sweetman, Craig R. Smith, Trine Dale & Daniel O. B. Jones
Jellyfish blooms are common in many oceans, and anthropogenic changes appear to have increased their magnitude in some regions. Although mass falls of jellyfish carcasses have been observed recently at the deep seafloor, the dense necrophage aggregations and rapid consumption rates typical for vertebrate carrion have not been documented. This has led to a paradigm of limited energy transfer to higher trophic levels at jelly falls relative to vertebrate organic falls. We show from baited...

Data from: Defoliation by pastoralists affects savanna tree seedling dynamics by limiting the facilitative role of canopy cover

Jennifer L. Bufford & Orou G. Gaoue
Recurrent tree defoliation by pastoralists, akin to herbivory, can negatively affect plant reproduction and population dynamics. However, our understanding of the indirect role of defoliation in seedling recruitment and tree–grass dynamics in tropical savanna is limited. In West African savanna, Fulani pastoralists frequently defoliate several fodder tree species to feed livestock in the dry season. We investigated the direct and indirect effects of recurrent defoliation of African mahogany (Khaya senegalensis) by Fulani people on seedling...

Data from: Seasonal dynamics of megafauna on the deep West Antarctic Peninsula shelf in response to variable phytodetrital influx

Paulo Y. G. Sumida, Craig R. Smith, Angelo F. Bernardino, Paulo S. Polito & Danilo R. Vieira
The deep West Antarctic Peninsula (WAP) shelf is characterized by intense deposition of phytodetritus during spring/summer months, while very little food material reaches the seafloor during winter. The response of the shelf benthic megafauna to this highly variable food supply is still poorly understood. In order to characterize the deposition of phytodetritus and the megabenthic community response, we deployed a seafloor time-lapse camera at approximately 590 m depth on the mid WAP shelf west of...

Data from: Large-scale introduction of the Indo-Pacific damselfish Abudefduf viagiensis into Hawai‘i promotes genetic swamping of the endemic congener A. abdominalis

Richard R. Coleman, Michelle R. Gaither, Kimokeo Bethany, Stanton Frank, Brian W. Bowen, Robert J. Toonen & Bethany Kimokeo
Hybridization in the ocean was once considered rare, a process prohibited by the rapid evolution of intrinsic reproductive barriers in a high-dispersal medium. However, recent genetic surveys have prompted a reappraisal of marine hybridization as an important demographic and evolutionary process. The Hawaiian Archipelago offers an unusual case history in this arena, due to the recent arrival of the widely distributed Indo-Pacific Sergeant (Abudefduf vaigiensis), which is hybridizing with the endemic congener, A. abdominals. Surveys...

Registration Year

  • 2014
    4

Resource Types

  • Dataset
    4

Affiliations

  • University of Hawaii at Manoa
    4
  • University of Southampton
    1
  • Durham University
    1
  • California Academy of Sciences
    1
  • University of Sao Paulo
    1
  • Norwegian Institute for Water Research
    1
  • Leeward Community College
    1
  • International Research Institute of Stavanger
    1
  • Universidade Federal do Espírito Santo
    1