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Population status of four endemic land bird species after an unsuccessful rodent eradication on Henderson Island
- ALEXANDER L. BOND, M. DE L. BROOKE, RICHARD J. CUTHBERT, JENNIFER L. LAVERS, GREGORY T.W. MCCLELLAND, THOMAS CHURCHYARD, ANGUS DONALDSON, NEIL DUFFIELD, ALICE FORREST, GAVIN HARRISON, LORNA MACKINNON, TARA PROUD, ANDREW SKINNER, NICK TORR, JULIET A. VICKERY, STEFFEN OPPEL
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- Journal:
- Bird Conservation International / Volume 29 / Issue 1 / March 2019
- Published online by Cambridge University Press:
- 10 April 2018, pp. 124-135
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Invasive rodents detrimentally affect native bird species on many islands worldwide, and rodent eradication is a useful tool to safeguard endemic and threatened species. However, especially on tropical islands, rodent eradications can fail for various reasons, and it is unclear whether the temporary reduction of a rodent population during an unsuccessful eradication operation has beneficial effects on native birds. Here we examine the response of four endemic land bird species on subtropical Henderson Island in the Pitcairn Island Group, South Pacific Ocean, following an unsuccessful rodent eradication in 2011. We conducted point counts at 25 sampling locations in 14 survey periods between 2011 and 2015, and modelled the abundance trends of all species using binomial mixture models accounting for observer and environmental variation in detection probability. Henderson Reed Warbler Acrocephalus taiti more than doubled in abundance (2015 population estimate: 7,194-28,776), and Henderson Fruit Dove Ptilinopus insularis increased slightly between 2011 and 2015 (2015 population estimate: 4,476–10,072), while we detected no change in abundance of the Henderson Lorikeet Vini stepheni (2015 population estimate: 554–3014). Henderson Crake Zapornia atra increased to pre-eradication levels following anticipated mortality during the operation (2015 population estimate: 4,960–20,783). A temporary reduction of rat predation pressure and rat competition for fruit may have benefitted the reed warbler and the fruit dove, respectively. However, a long drought may have naturally suppressed bird populations prior to the rat eradication operation in 2011, potentially confounding the effects of temporary rat reduction and natural recovery. We therefore cannot unequivocally ascribe the population recovery to the temporary reduction of the rat population. We encourage robust monitoring of island biodiversity both before and after any management operation to better understand responses of endemic species to failed or successful operations.
The science of EChO
- Giovanna Tinetti, James Y-K. Cho, Caitlin A. Griffith, Olivier Grasset, Lee Grenfell, Tristan Guillot, Tommi T. Koskinen, Julianne I. Moses, David Pinfield, Jonathan Tennyson, Marcell Tessenyi, Robin Wordsworth, Alan Aylward, Roy van Boekel, Angioletta Coradini, Therese Encrenaz, Ignas Snellen, Maria R. Zapatero-Osorio, Jeroen Bouwman, Vincent Coudé du Foresto, Mercedes Lopez-Morales, Ingo Mueller-Wodarg, Enric Pallé, Franck Selsis, Alessandro Sozzetti, Jean-Philippe Beaulieu, Thomas Henning, Michael Meyer, Giuseppina Micela, Ignasi Ribas, Daphne Stam, Mark Swain, Oliver Krause, Marc Ollivier, Emanuele Pace, Bruce Swinyard, Peter A.R. Ade, Nick Achilleos, Alberto Adriani, Craig B. Agnor, Cristina Afonso, Carlos Allende Prieto, Gaspar Bakos, Robert J. Barber, Michael Barlow, Peter Bernath, Bruno Bézard, Pascal Bordé, Linda R. Brown, Arnaud Cassan, Céline Cavarroc, Angela Ciaravella, Charles Cockell, Athéna Coustenis, Camilla Danielski, Leen Decin, Remco De Kok, Olivier Demangeon, Pieter Deroo, Peter Doel, Pierre Drossart, Leigh N. Fletcher, Matteo Focardi, Francois Forget, Steve Fossey, Pascal Fouqué, James Frith, Marina Galand, Patrick Gaulme, Jonay I. González Hernández, Davide Grassi, Matt J. Griffin, Ulrich Grözinger, Manuel Guedel, Pactrick Guio, Olivier Hainaut, Robert Hargreaves, Peter H. Hauschildt, Kevin Heng, David Heyrovsky, Ricardo Hueso, Pat Irwin, Lisa Kaltenegger, Patrick Kervella, David Kipping, Geza Kovacs, Antonino La Barbera, Helmut Lammer, Emmanuel Lellouch, Giuseppe Leto, Mercedes Lopez Morales, Miguel A. Lopez Valverde, Manuel Lopez-Puertas, Christophe Lovi, Antonio Maggio, Jean-Pierre Maillard, Jesus Maldonado Prado, Jean-Baptiste Marquette, Francisco J. Martin-Torres, Pierre Maxted, Steve Miller, Sergio Molinari, David Montes, Amaya Moro-Martin, Olivier Mousis, Napoléon Nguyen Tuong, Richard Nelson, Glenn S. Orton, Eric Pantin, Enzo Pascale, Stefano Pezzuto, Ennio Poretti, Raman Prinja, Loredana Prisinzano, Jean-Michel Réess, Ansgar Reiners, Benjamin Samuel, Jorge Sanz Forcada, Dimitar Sasselov, Giorgio Savini, Bruno Sicardy, Alan Smith, Lars Stixrude, Giovanni Strazzulla, Gautam Vasisht, Sandrine Vinatier, Serena Viti, Ingo Waldmann, Glenn J. White, Thomas Widemann, Roger Yelle, Yuk Yung, Sergey Yurchenko
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- Journal:
- Proceedings of the International Astronomical Union / Volume 6 / Issue S276 / October 2010
- Published online by Cambridge University Press:
- 10 November 2011, pp. 359-370
- Print publication:
- October 2010
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The science of extra-solar planets is one of the most rapidly changing areas of astrophysics and since 1995 the number of planets known has increased by almost two orders of magnitude. A combination of ground-based surveys and dedicated space missions has resulted in 560-plus planets being detected, and over 1200 that await confirmation. NASA's Kepler mission has opened up the possibility of discovering Earth-like planets in the habitable zone around some of the 100,000 stars it is surveying during its 3 to 4-year lifetime. The new ESA's Gaia mission is expected to discover thousands of new planets around stars within 200 parsecs of the Sun. The key challenge now is moving on from discovery, important though that remains, to characterisation: what are these planets actually like, and why are they as they are?
In the past ten years, we have learned how to obtain the first spectra of exoplanets using transit transmission and emission spectroscopy. With the high stability of Spitzer, Hubble, and large ground-based telescopes the spectra of bright close-in massive planets can be obtained and species like water vapour, methane, carbon monoxide and dioxide have been detected. With transit science came the first tangible remote sensing of these planetary bodies and so one can start to extrapolate from what has been learnt from Solar System probes to what one might plan to learn about their faraway siblings. As we learn more about the atmospheres, surfaces and near-surfaces of these remote bodies, we will begin to build up a clearer picture of their construction, history and suitability for life.
The Exoplanet Characterisation Observatory, EChO, will be the first dedicated mission to investigate the physics and chemistry of Exoplanetary Atmospheres. By characterising spectroscopically more bodies in different environments we will take detailed planetology out of the Solar System and into the Galaxy as a whole.
EChO has now been selected by the European Space Agency to be assessed as one of four M3 mission candidates.
Contributors
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- By Alaa Al-Sheikh, Simon Bonell, Nick Bouras, Merlin G. Butler, Basil Cardoza, Wai-Him Cheung, Robert W. Davis, Shoumitro Deb, Neil A. Douglas, Maeve Eogan, Stefano Fedele, William I. Fraser, John A. Grant, Jessica A. Hellings, Muthukumar Kannabiran, Mike Kerr, Henry Kwok, Stefano Lassi, Lynette Lee, Jane McCarthy, Seth A. Mensah, Joav Merrick, Mohammed Morad, Jean O'Hara, Vishwa Radhakrishnan, Stephen Reudrich, Norman Sartorius, Crispian Scully, Muhunthan Thillai, Jennifer Torr, Mary Wingfield, J. Margaret Woodhouse
- Jean O'Hara, Jane McCarthy, King's College London, Nick Bouras, King's College London
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- Book:
- Intellectual Disability and Ill Health
- Published online:
- 04 August 2010
- Print publication:
- 21 January 2010, pp vii-x
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25 - Professional training for those working with people with intellectual disabilities and mental health problems
- from Part IV - Policy and service systems
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- By Helen Costello, Senior Researcher, King's College London, The Institute of Psychiatry, Estia Centre – Guy's Hospital, Geraldine Holt, Consultant Psychiatrist, Estia Centre, York Clinic – Guy's Hospital, London, Nancy Cain, Associate Clinical Professor of Psychiatry, 300 Crittenden Blvd, Rochester, NY 14642, USA, Elspeth Bradley, Associate Professor, Department of Psychiatry, University of Toronto, CANADA, Jennifer Torr, Senior Lecturer in Mental Health, Monash University, Robert Davis, Associate Professor, Department of General Practice Monash University, Niki Edwards, Clinical Coordinator and Lecturer, The University of Queensland, Nick Lennox, Associate Professor, Queensland Centre for Intellectual & Developmental Disability School of Population Health The University of Queensland, Germain Weber, Professor of Psychology, Department of Clinical, Biological and Differential Psychology, Faculty of Psychology, University of Vienna
- Edited by Nick Bouras, King's College London, Geraldine Holt, King's College London
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- Book:
- Psychiatric and Behavioural Disorders in Intellectual and Developmental Disabilities
- Published online:
- 15 December 2009
- Print publication:
- 15 February 2007, pp 400-411
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Summary
Introduction
Life in the community for individuals with intellectual disabilities (ID) implies new roles and responsibilities for professionals providing mental health care to this population. A diverse range of mental health service models have emerged both nationally and internationally to meet these needs. In some cases, emphasis is on the provision of generic mainstream services to individuals with ID, while in others specialist services have been developed, either working independently of or in tandem with generic teams. This variability implies that a variety of professional groups require specialist knowledge for assessing, treating and managing mental health problems in individuals with ID. Very little is written about the education of professionals providing mental health care for this group and there is a lack of recognition of the need for formalized training in mental health and ID from a national and international perspective. Many training programmes appear ad hoc, with the availability and content of most educational initiatives being largely determined by the specific interests of those individuals providing and undergoing training. This chapter reviews the training programmes of three groups of health care professionals (psychiatrists, psychologists and primary care physicians) available in five countries (UK, USA, Canada, Australia and Austria) in relation to mental health problems in individuals with ID. The role of specific institutions and key individuals in increasing the profile of mental health problems in this population is highlighted, factors hindering the development of professional training are identified and recent innovations in curricula are described.