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Robert J. M. Crawford

Robert J. M. Crawford

D-Index & Metrics

Ecology and Evolution

D-Index
49
Citations
9120
World Ranking
4038
National Ranking
39

Overview

Robert J. M. Crawford is affiliated with the University of Cape Town in South Africa. Their primary field of study is Environmental Science with a focus on related subfields including Ecology, Global and Planetary Change, Nature and Landscape Conservation, Ecological Modeling, and Oceanography.

Their research topics primarily cover areas such as Avian ecology and behavior, Marine and fisheries research, Wildlife Ecology and Conservation, Isotope Analysis in Ecology, Marine animal studies overview, Fish Ecology and Management Studies, and Species Distribution and Climate Change.

Frequent coauthors of Robert J. M. Crawford include Azwianewi B. Makhado, Peter G. Ryan, Richard B. Sherley, Marthán N Bester, and Pierre Pistorius.

They have published in several respected venues, most notably Ostrich, Diversity and Distributions, Nature, Science, and Scientific Data. Ostrich features as the most frequent publication venue with three papers.

Recent papers include the following:

  • Tracking of marine predators to protect Southern Ocean ecosystems, 2020, Nature
  • Hemispheric asymmetry in ocean change and the productivity of ecosystem sentinels, 2021, Science
  • The retrospective analysis of Antarctic tracking data project, 2020, Scientific Data
  • The conservation status and population decline of the African penguin deconstructed in space and time, 2020, Ecology and Evolution
  • Habitat model forecasts suggest potential redistribution of marine predators in the southern Indian Ocean, 2021, Diversity and Distributions

Best Publications

  • Global Seabird Response to Forage Fish Depletion-One-Third for the Birds

    Philippe M. Cury;Ian L. Boyd;Sylvain Bonhommeau;Tycho Anker-Nilssen

  • Worldwide large-scale fluctuations of sardine and anchovy populations

    R. A. Schwartzlose;J. Alheit;A. Bakun;T. R. Baumgartner

  • World-wide fluctuations of sardine and anchovy stocks: the regime problem

    D. Lluch-Belda;R. J. M. Crawford;T. Kawasaki;A. D. MacCall

  • Sardine and anchovy regime fluctuations of abundance in four regions of the world oceans: a workshop report

    D. Lluch-Belda;R. A. Schwartzlose;R. A. Schwartzlose;R. Serra;R. Parrish

  • A junk-food hypothesis for gannets feeding on fishery waste

    David Grémillet;David Grémillet;Lorien Pichegru;Lorien Pichegru;Grégoire Kuntz;Anthony G Woakes

  • Tracking of marine predators to protect Southern Ocean ecosystems

    Mark A. Hindell;Ryan R. Reisinger;Ryan R. Reisinger;Yan Ropert-Coudert;Luis A. Hückstädt

  • Pollution, habitat loss, fishing, and climate change as critical threats to penguins.

    Phil N. Trathan;Pablo García-Borboroglu;Dee Boersma;Charles-André Bost

  • Phenological Changes in the Southern Hemisphere

    Lynda E. Chambers;Res Altwegg;Christophe Barbraud;Phoebe Barnard

  • Responses by four seabird species to a fluctuating availability of Cape Anchovy Engraulis capensis off South Africa

    Robert J. M. Crawford;Bruce M. Dyer

  • The influence of food availability on breeding success of African penguins Spheniscus demersus at Robben Island, South Africa

    Robert J.M. Crawford;Peter J. Barham;Les G. Underhill;Lynne J. Shannon

  • The Benguela ecosystem. IV: The major fish and invertebrate resources

    R. J. M. Crawford;L. V. Shannon;D. E. Pollock

  • Ecosystem change in the southern Benguela and the underlying processes

    Laura K. Blamey;Lynne J. Shannon;John J. Bolton;Robert J.M. Crawford

  • Pelagic fish and seabird interrelationships off the coasts of South West and South Africa

    Robert J.M. Crawford;Peter A. Shelton

  • Trends in numbers of Cape gannets (Morus capensis), 1956/1957-2005/2006, with a consideration of the influence of food and other factors

    Unknown

  • Distribution, population size and conservation of the jackass penguin Spheniscus demersus

    P. A. Shelton;R. J. M. Crawford;J. Cooper;R. K. Brooke

  • Mortality and survival of African Penguins Spheniscus demersusinvolved in the Apollo Seaoil spill: an evaluation of rehabilitation efforts

    Leslie G. Underhill;Peter A. Bartlett;Lukas Baumann;Robert J.M. Crawford

  • Habitat modelling of tracking data from multiple marine predators identifies important areas in the Southern Indian Ocean

    Ryan Rudolf Reisinger;Ryan Rudolf Reisinger;Ben Raymond;Ben Raymond;Ben Raymond;Mark A. Hindell;Mark A. Hindell;Marthan Nieuwoudt Bester

  • Using behavioural and state variables to identify proximate causes of population change in a seabird

    Sue Lewis;David Gremillet;Francis H.J. Daunt;Peter G. Ryan

  • Influence of local and regional prey availability on breeding performance of African penguins Spheniscus demersus

    Richard B. Sherley;Les G. Underhill;Barbara J. Barham;Peter J. Barham

  • Responses of african penguins to regime changes of sardine and anchovy in the Benguela system

    R. J. M. Crawford

  • Food, fishing and seabirds in the Benguela upwelling system

    Robert J. M. Crawford

Frequent Co-Authors

Peter G. Ryan
Peter G. Ryan University of Cape Town
David Grémillet
David Grémillet Centre national de la recherche scientifique, CNRS
Ben Raymond
Ben Raymond Australian Antarctic Division
Lynne J. Shannon
Lynne J. Shannon University of Cape Town
Res Altwegg
Res Altwegg University of Cape Town
Pierre A. Pistorius
Pierre A. Pistorius Nelson Mandela University
Marthán N Bester
Marthán N Bester University of Pretoria
Norman Ratcliffe
Norman Ratcliffe British Antarctic Survey
Alexander L. Bond
Alexander L. Bond Natural History Museum
Peter J. Barham
Peter J. Barham University of Bristol

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