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16 - Impacts of invasive species on coral reef fishes
- from PART III - HUMAN FINGERPRINTS
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- By Isabelle M. Côté, Simon Fraser University, John F. Bruno, University of North Carolina
- Edited by Camilo Mora, University of Hawaii, Manoa
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- Book:
- Ecology of Fishes on Coral Reefs
- Published online:
- 05 May 2015
- Print publication:
- 23 April 2015, pp 154-165
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Summary
Non-indigenous species are found in most marine regions of the world, but relatively few have been reported on coral reefs. The majority of known reef invaders are fishes, probably because this group is well known and often monitored in coral habitats. There is little information on the repercussions of invasive invertebrates or algae on reef fish. Our understanding of the impacts of invasive fishes is largely limited to those of predatory fish including bluestripe snapper and peacock grouper, introduced to Hawaiʿi, and Indo-Pacific lionfish which were introduced to the western Atlantic. These species have spread rapidly from initial introduction sites, and they consume a wide range of native coral reef fishes. The direct impacts of invaders on Hawaiian reefs are not known, but lionfish have caused substantial declines in the abundance and biomass of prey species at some sites in the Atlantic. The long-term effects of predatory fish invasion on reef fish populations and coral reef habitats have the potential to be severe. Predatory fish invasions are yielding insights into the potentially weak role of biotic resistance and the importance of propagule pressure in determining coral reef invasibility. However, there are currently too few well-studied invasions on coral reefs to assess the generality of these conclusions.
INVASION ECOLOGY: THE SCIENCE OF ORGANISMS IN THE WRONG PLACE
As the globalization of trade proceeds, species are transported beyond their native ranges increasingly frequently [415, 2184]. Some become established in novel environments, and a small subset of species, generally categorized as invasive, increase in range and abundance, often with concomitant effects on the fauna and flora of the recipient habitats [2589].
Long-standing challenges for ecologists have been to predict when invasions will occur and what impacts they will have. Are there characteristics of species that make them particularly good at invading, or features of communities that make them particularly invasible? Although some characteristics have been identified [e.g. 1070, 1370, 1485], we still do not have definitive answers to these questions.
Contributors
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- By Francesco Acerbi, Ayca Akgoz, Matthew R. Amans, Ramsey Ashour, Mohammed Ali Aziz-Sultan, H. Hunt Batjer, Donnie Bell, Bernard R. Bendok, Giovanni Broggi, Morgan Broggi, Charles A. Bruno, Steven D. Chang, In Sup Choi, Omar Choudhri, Douglas J. Cook, William P. Dillon, Peter Dirks, Rose Du, Travis M. Dumont, Tarek Y. El Ahmadieh, Najib E. El Tecle, Mohamed Samy Elhammady, Paolo Ferroli, Alana M. Flexman, John C. Flickinger, Kai U. Frerichs, Sasikhan Geibprasert, Adrian W. Gelb, Y. Pierre Gobin, Bradley A. Gross, Seunggu J. Han, Tomoki Hashimoto, Juha Hernesniemi, Roberto C. Heros, Steven W. Hetts, Randall T. Higashida, Joshua A. Hirsch, Nikolai J. Hopf, L. Nelson Hopkins, Maziyar A. Kalani, M. Yashar S. Kalani, Hideyuki Kano, Syed Aftab Karim, Robert M. Koffie, Douglas S. Kondziolka, Timo Krings, Aki Laakso, Giuseppe Lanzino, Michael T. Lawton, Elad I. Levy, L. Dade Lunsford, Adel M. Malek, Michael P. Marks, George A. C. Mendes, Philip M. Meyers, Jacques Morcos, Nitin Mukerji, Christian Musahl, Ludmila Pawlikowska, Matthew B. Potts, Ross Puffer, James D. Rabinov, Jonathan J. Russin, Mina G. Safain, Duke Samson, Marco Schiariti, R. Michael Scott, Jason P. Sheehan, Paul Singh, Edward R. Smith, Scott G. Soltys, Robert F. Spetzler, Gary K. Steinberg, Philip E. Stieg, Hua Su, Karel terBrugge, Kiron Thomas, Tarik Tihan, Babu Welch, Jonathan White, H. Richard Winn, Chun-Po Yen, Jacky T. Yeung, Byron Yip, Samer G. Zammar
- Edited by Robert F. Spetzler, Douglas S. Kondziolka, Randall T. Higashida, University of California, San Francisco, M. Yashar S. Kalani
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- Book:
- Comprehensive Management of Arteriovenous Malformations of the Brain and Spine
- Published online:
- 05 January 2015
- Print publication:
- 08 January 2015, pp x-xiv
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Contributors
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- By Ioannis P. Androulakis, Djillali Annane, Gérard Audibert, Lisa L. Barnes, Paolo Bartolomeo, Walter S. Bartynski, David A. Bennett, Nicolas Bruder, Nathan E. Brummel, Steve E. Calvano, Alain Cariou, F. Chretien, Jan Claassen, Colm Cunningham, Souhayl Dahmani, Robert Dantzer, Dimitry S. Davydow, Sanjay V. Desai, E. Wesley Ely, Frédéric Faugeras, Karen J. Ferguson, Brandon Foreman, Sadanand M. Gaikwad, Rebecca F. Gottesman, Maura A. Grega, Richard D. Griffiths, Marion Griton, Stefan D. Gurney, Hebah M. Hefzy, Michael T. Heneka, Dustin M. Hipp, Ramona O. Hopkins, Christopher G. Hughes, James C. Jackson, Christina Jones, Peter W. Kaplan, Keith W. Kelley, Raymond C. Koehler, Matthew A. Koenig, Jan Pieter Konsman, Felix Kork, John P. Kress, Stephen F. Lowry, Alawi Luetz, David Luis, Alasdair M. J. MacLullich, Guy M. McKhann, Jean Mantz, Panteleimon D. Mavroudis, Mervyn Maze, Bruno Mégarbane, Lionel Naccache, Dale M. Needham, Pratik P. Pandharipande, Jean-Francois Payen, V. Hugh Perry, Margaret Pisani, C. Rauturier, Benjamin Rohaut, Jennifer Ryan, Robert D. Sanders, Jeremy D. Scheff, Frederic Sedel, Ola A. Selnes, Tarek Sharshar, Martin Siegemund, Yoanna Skrobik, Jamie W. Sleigh, Romain Sonneville, Claudia D. Spies, Luzius A. Steiner, Robert D. Stevens, Raoul Sutter, Fabio Silvio Taccone, Richard E. Temes, Willem A. van Gool, Christel C. Vanbesien, F. Verdonk, Odile Viltart, Julia Wendon, Catherine N. Widmann, Robert S. Wilson
- Edited by Robert D. Stevens, Tarek Sharshar, E. Wesley Ely, Vanderbilt University, Tennessee
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- Book:
- Brain Disorders in Critical Illness
- Published online:
- 05 October 2013
- Print publication:
- 19 September 2013, pp viii-xii
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- By Bruno Allolio, Wiebke Arlt, John Bancroft, Shezad Basaria, Hermann M. Behre, Shalender Bhasin, Steven Boonen, Cesare Carani, Kevin S. Channer, Frank Claessens, Susan R. Davis, Samuel R. Denmeade, Flaminia Fanelli, Evelien Gielen, Wen Guo, Stefanie Hahner, David J. Handelsman, Olaf Hiort, John T. Isaacs, Ravi Jasuja, T. Hugh Jones, Jean-Marc Kaufman, C. Marc Luetjens, Mario Maggi, Robert I. McLachlan, Eberhard Nieschlag, Susan Nieschlag, Liza O'Donnell, Uberto Pagotto, Valerie Anne Randall, Vincenzo Rochira, Laura Roli, Daniele Santi, Wilhelm Schänzer, Carlo Serra, Manuela Simoni, Rajan Singh, Mieke Sinnesael, Thomas W. Storer, Ronald S. Swerdloff, Mario Thevis, Thomas G. Travison, Guy T'Sjoen, Dirk Vanderschueren, Alex Vermeulen, Elena Vorona, Christina C. L. Wang, Gerhard F. Weinbauer, Ralf Werner, Mikhail N. Zacharov, Michael Zitzmann
- Edited by Eberhard Nieschlag, Hermann M. Behre
- Edited in association with Susan Nieschlag
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- Book:
- Testosterone
- Published online:
- 05 August 2012
- Print publication:
- 26 July 2012, pp vii-x
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Availability of free fruits and vegetables at canteen lunch improves lunch and daily nutritional profiles: a randomised controlled trial
- Carl K. Lachat, Roosmarijn Verstraeten, Bruno De Meulenaer, Joris Menten, Lieven F. Huybregts, John Van Camp, Dominique Roberfroid, Patrick W. Kolsteren
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- Journal:
- British Journal of Nutrition / Volume 102 / Issue 7 / 14 October 2009
- Published online by Cambridge University Press:
- 02 April 2009, pp. 1030-1037
- Print publication:
- 14 October 2009
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Canteens are known to be promising settings for activities to promote intake of fruits and vegetables, but it remains unclear to what extent distributing free fruits and vegetables can influence dietary patterns of customers. The present study evaluated the effect of providing fruits and vegetables for free in a university canteen on the daily diet of university canteen customers. Canteen customers (n 209) were randomly allocated to a fruit and vegetable group (FVG) and a control group (CG). FVG participants were given two portions of fruits and one portion of vegetables for free at lunchtime. Food and beverage intake was measured using a dietary record for 3 d and dietary quality was appraised using a comprehensive scoring system. The FVG participants ate 80 g more fruits (P < 0·01) and 108 g more vegetables (P < 0·001) on a daily basis compared with the CG participants. No differences were found for energy density, total energy, Na and energy from fat between the groups per day. A higher intake of fruits and vegetables was observed at lunch and of vegetables during the dinner and evening snacks. The FVG participants were more likely to comply with dietary recommendations for fruits and vegetables and had a better dietary profile on the study days and for the lunch consumed on those days. The results of the present study demonstrate how modifications of a canteen lunch can be instrumental to enhance the nutritional quality of lunch as well as the overall quality of the diet of the customers.
Notes on the contributors
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- By Aaron Ahuvia, Gerrit Antonides, Russell Belk, Valerie Braithwaite, Carole Burgoyne, John G. Cullis, Werner F. M. De Bondt, Bruno S. Frey, Tommy Gärling, Danyelle Guyatt, Denis Hilton, Tim Jackson, Philip R. Jones, Simon Kemp, Erich Kirchler, Stephen E. G. Lea, Alan Lewis, Terry Lohrenz, Peter Loukopoulos, P. Read Montague, Ellen K. Nyhus, Clive L. Spash, Paul C. Stern, Alois Stutzer, Karl-Erik Wärneryd, Paul Webley, Michael Wenzel, Ulrich Witt
- Edited by Alan Lewis, University of Bath
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- Book:
- The Cambridge Handbook of Psychology and Economic Behaviour
- Published online:
- 05 June 2012
- Print publication:
- 17 April 2008, pp xv-xx
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Intake rates and the functional response in shorebirds (Charadriiformes) eating macro-invertebrates
- John D. Goss-Custard, Andrew D. West, Michael G. Yates, Richard W. G. Caldow, Richard A. Stillman, Louise Bardsley, Juan Castilla, Macarena Castro, Volker Dierschke, Sarah. E. A. Le. V. dit Durell, Goetz Eichhorn, Bruno J. Ens, Klaus-Michael Exo, P. U. Udayangani-Fernando, Peter N. Ferns, Philip A. R. Hockey, Jennifer A. Gill, Ian Johnstone, Bozena Kalejta-Summers, Jose A. Masero, Francisco Moreira, Rajarathina Velu Nagarajan, Ian P. F. Owens, Cristian Pacheco, Alejandro Perez-Hurtado, Danny Rogers, Gregor Scheiffarth, Humphrey Sitters, William J. Sutherland, Patrick Triplet, Dave H. Worrall1, Yuri Zharikov, Leo Zwarts, Richard A. Pettifor
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- Journal:
- Biological Reviews / Volume 81 / Issue 4 / November 2006
- Published online by Cambridge University Press:
- 24 July 2006, pp. 501-529
- Print publication:
- November 2006
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As field determinations take much effort, it would be useful to be able to predict easily the coefficients describing the functional response of free-living predators, the function relating food intake rate to the abundance of food organisms in the environment. As a means easily to parameterise an individual-based model of shorebird Charadriiformes populations, we attempted this for shorebirds eating macro-invertebrates. Intake rate is measured as the ash-free dry mass (AFDM) per second of active foraging; i.e. excluding time spent on digestive pauses and other activities, such as preening. The present and previous studies show that the general shape of the functional response in shorebirds eating approximately the same size of prey across the full range of prey density is a decelerating rise to a plateau, thus approximating the Holling type II (‘disc equation’) formulation. But field studies confirmed that the asymptote was not set by handling time, as assumed by the disc equation, because only about half the foraging time was spent in successfully or unsuccessfully attacking and handling prey, the rest being devoted to searching.
A review of 30 functional responses showed that intake rate in free-living shorebirds varied independently of prey density over a wide range, with the asymptote being reached at very low prey densities (<150/m−2). Accordingly, most of the many studies of shorebird intake rate have probably been conducted at or near the asymptote of the functional response, suggesting that equations that predict intake rate should also predict the asymptote.
A multivariate analysis of 468 ‘spot’ estimates of intake rates from 26 shorebirds identified ten variables, representing prey and shorebird characteristics, that accounted for 81% of the variance in logarithm-transformed intake rate. But four-variables accounted for almost as much (77.3%), these being bird size, prey size, whether the bird was an oystercatcher Haematopus ostralegus eating mussels Mytilus edulis, or breeding. The four variable equation under-predicted, on average, the observed 30 estimates of the asymptote by 11.6%, but this discrepancy was reduced to 0.2% when two suspect estimates from one early study in the 1960s were removed. The equation therefore predicted the observed asymptote very successfully in 93% of cases.
We conclude that the asymptote can be reliably predicted from just four easily measured variables. Indeed, if the birds are not breeding and are not oystercatchers eating mussels, reliable predictions can be obtained using just two variables, bird and prey sizes. A multivariate analysis of 23 estimates of the half-asymptote constant suggested they were smaller when prey were small but greater when the birds were large, especially in oystercatchers. The resulting equation could be used to predict the half-asymptote constant, but its predictive power has yet to be tested.
As well as predicting the asymptote of the functional response, the equations will enable research workers engaged in many areas of shorebird ecology and behaviour to estimate intake rate without the need for conventional time-consuming field studies, including species for which it has not yet proved possible to measure intake rate in the field.