Access the full text.
Sign up today, get DeepDyve free for 14 days.
N. Dulvy, S. Fowler, J. Musick, R. Cavanagh, P. Kyne, Lucy Harrison, J. Carlson, Lindsay Davidson, S. Fordham, M. Francis, C. Pollock, C. Simpfendorfer, G. Burgess, K. Carpenter, L. Compagno, D. Ebert, Claudine Gibson, M. Heupel, S. Livingstone, Jonnell Sanciangco, J. Stevens, Sarah Valenti, W. White (2013)
Extinction risk and conservation of the world’s sharks and rayseLife, 3
C. Layman, J. Quattrochi, Caroline Peyer, Jacob Allgeier, K. Suding (2007)
Niche width collapse in a resilient top predator following ecosystem fragmentationEcology Letters, 10
Jerald Johnson, Kristian Omland (2004)
Model selection in ecology and evolution.Trends in ecology & evolution, 19 2
N. Dulvy, J. Reynolds (2002)
Predicting Extinction Vulnerability in SkatesConservation Biology, 16
J. Ragle, D. Remsen (2010)
IUCN Red List of Threatened Species
Heather Cunningham, L. Rissler, Lauren Buckley, M. Urban (2016)
Abiotic and biotic constraints across reptile and amphibian rangesEcography, 39
(2013)
MuMIn: Multi-model inference
P. Tienderen (1991)
EVOLUTION OF GENERALISTS AND SPECIALISTS IN SPATIALLY HETEROGENEOUS ENVIRONMENTSEvolution, 45
List of references used to extract data for this study
Levins index (Levins), Levins' standardized index (Levins_s-tand), depth range (Depth_range) and maximum body size (TL_max) for 57 skate species
A. Purvis, J. Gittleman, G. Cowlishaw, G. Mace (2000)
Predicting extinction risk in declining speciesProceedings of the Royal Society of London. Series B: Biological Sciences, 267
E. Britt, James Hicks, Albert Bennett (2006)
The energetic consequences of dietary specialization in populations of the garter snake, Thamnophis elegansJournal of Experimental Biology, 209
L. Watling, E. Norse (1998)
Disturbance of the Seabed by Mobile Fishing Gear: A Comparison to Forest ClearcuttingConservation Biology, 12
E. Larson, J. Olden, N. Usio (2010)
Decoupled conservatism of Grinnellian and Eltonian niches in an invasive arthropodEcosphere, 1
D. Bates, M. Machler, B. Bolker, Steven Walker (2014)
Fitting Linear Mixed-Effects Models Using lme4Journal of Statistical Software, 67
K. Safi, G. Kerth (2004)
A Comparative Analysis of Specialization and Extinction Risk in Temperate‐Zone BatsConservation Biology, 18
(2009)
Raja rhina . The IUCN Red List of Threatened Species 2009 : e . T 161595 A 5460293
(2011)
A brief guide
D. McCauley, M. Pinsky, S. Palumbi, J. Estes, Francis Joyce, R. Warner (2015)
Marine defaunation: Animal loss in the global oceanScience, 347
J. Kotiaho, V. Kaitala, A. Komonen, Jussi Päivinen (2005)
Predicting the risk of extinction from shared ecological characteristics.Proceedings of the National Academy of Sciences of the United States of America, 102 6
I. Avila, K. Kaschner, C. Dormann (2018)
Current global risks to marine mammals: Taking stock of the threatsBiological Conservation, 221
Lise Comte, J. Cucherousset, J. Olden (2017)
Global test of Eltonian niche conservatism of nonnative freshwater fish species between their native and introduced rangesEcography, 40
M. Franzén, S. Nilsson, V. Johansson, T. Ranius (2013)
Population Fluctuations and Synchrony of Grassland Butterflies in Relation to Species TraitsPLoS ONE, 8
D. Ebert, S. Fowler, L. Compagno (2013)
Sharks of the World: A Fully Illustrated Guide
(2004)
Food consumption and
Josiah Maine, J. Boyles (2015)
Land cover influences dietary specialization of insectivorous bats globallyMammal Research, 60
N. Dulvy, J. Ellis, N. Goodwin, A. Grant, J. Reynolds, S. Jennings (2004)
Methods of assessing extinction risk in marine fishes.Fish and Fisheries, 5
(2016)
Beringraja binoculata. The IUCN Red List of Threatened Species 2016: e.T44183A80679344
P. Munday (2004)
Habitat loss, resource specialization, and extinction on coral reefsGlobal Change Biology, 10
B. Wetherbee, E. Cortés (2004)
Food Consumption and Feeding Habits
J. Hutchings, R. Myers, Verónica García, L. Lucifora, A. Kuparinen (2012)
Life-history correlates of extinction risk and recovery potential.Ecological applications : a publication of the Ecological Society of America, 22 4
D. Ebert, J. Bizzarro (2007)
Standardized diet compositions and trophic levels of skates (Chondrichthyes: Rajiformes: Rajoidei)Environmental Biology of Fishes, 80
(1998)
Disturbance of the seabed
F. Ferretti, B. Worm, G. Britten, M. Heithaus, H. Lotze (2010)
Patterns and ecosystem consequences of shark declines in the ocean.Ecology letters, 13 8
(1991)
Evolution of generalists
(2001)
Statistical model selection: an alternative to null hypothesis testing
W. White, M. Carvalho, B. Séret, M. Stehmann, G. Naylor (2016)
Rays of the World
Emily Botts, B. Erasmus, G. Alexander (2013)
Small range size and narrow niche breadth predict range contractions in South African frogsGlobal Ecology and Biogeography, 22
K. Boerder, Nathan Miller, B. Worm (2018)
Global hot spots of transshipment of fish catch at seaScience Advances, 4
J. Boyles, Jonathan Storm (2007)
The Perils of Picky Eating: Dietary Breadth Is Related to Extinction Risk in Insectivorous BatsPLoS ONE, 2
J. Reynolds, N. Dulvy, N. Goodwin, J. Hutchings (2005)
Biology of extinction risk in marine fishesProceedings of the Royal Society B: Biological Sciences, 272
K. Winemiller, Daniel Fitzgerald, L. Bower, E. Pianka (2015)
Functional traits, convergent evolution, and periodic tables of nichesEcology Letters, 18
D. Ebert, L. Compagno (2007)
Biodiversity and systematics of skates (Chondrichthyes: Rajiformes: Rajoidei)Environmental Biology of Fishes, 80
(2015)
Bathyraja aleutica . The IUCN Red List of Threatened Species 2015 : e . T 161661 A 80674005
D. Futuyma, Gabriel Moreno (1988)
The Evolution of Ecological SpecializationAnnual Review of Ecology, Evolution, and Systematics, 19
E. Cortés (1999)
Standardized diet compositions and trophic levels of sharksJournal of Materials Science, 56
I. Field, M. Meekan, R. Buckworth, C. Bradshaw (2009)
Chapter 4. Susceptibility of sharks, rays and chimaeras to global extinction.Advances in marine biology, 56
S. Munroe, C. Simpfendorfer, M. Heupel, M. Heupel (2014)
Defining shark ecological specialisation: concepts, context, and examplesReviews in Fish Biology and Fisheries, 24
V. Devictor, J. Clavel, R. Julliard, S. Lavergne, D. Mouillot, W. Thuiller, P. Venail, S. Villéger, N. Mouquet (2010)
Defining and measuring ecological specializationJournal of Applied Ecology, 47
(2009)
Raja rhina. The IUCN Red List of Threatened Species 2009: e.T161595A5460293. http://www.iucnredlist.org/details/ 161595/0
(2016)
Beringraja binoculata
(2015)
Bathyraja aleutica. The IUCN Red List of Threatened Species 2015: e.T161661A80674005. http://www.iucnredlist.org/details/ 161661/0
L. Compagno (1990)
Alternative life-history styles of cartilaginous fishes in time and spaceEnvironmental Biology of Fishes, 28
R. Team (2014)
R: A language and environment for statistical computing.MSOR connections, 1
J. Croxall, S. Butchart, Benjamin Lascelles, A. Stattersfield, B. Sullivan, Andy Symes, Phil Taylor (2012)
Seabird conservation status, threats and priority actions: a global assessmentBird Conservation International, 22
I. Owens, P. Bennett (2000)
Ecological basis of extinction risk in birds: habitat loss versus human persecution and introduced predators.Proceedings of the National Academy of Sciences of the United States of America, 97 22
S. Barbini, D. Sabadin, L. Lucifora (2018)
Comparative analysis of feeding habits and dietary niche breadth in skates: the importance of body size, snout length, and depthReviews in Fish Biology and Fisheries, 28
M. Kaiser (1998)
Significance of Bottom‐Fishing DisturbanceConservation Biology, 12
M. Symonds, A. Moussalli (2010)
A brief guide to model selection, multimodel inference and model averaging in behavioural ecology using Akaike’s information criterionBehavioral Ecology and Sociobiology, 65
A. Rodrigues, J. Pilgrim, John Lamoreux, M. Hoffmann, T. Brooks (2006)
The value of the IUCN Red List for conservation.Trends in ecology & evolution, 21 2
Andy Pratt, Ana Aznar (1998)
A COMPARATIVE ANALYSIS
H. Lotze, Haley Guest, J. O’Leary, A. Tuda, D. Wallace (2018)
Public perceptions of marine threats and protection from around the worldOcean & Coastal Management, 152
(1989)
Ecological methodology
W. Ripple, C. Wolf, T. Newsome, M. Hoffmann, Aaron Wirsing, D. McCauley (2017)
Extinction risk is most acute for the world’s largest and smallest vertebratesProceedings of the National Academy of Sciences, 114
Identifying the ecological traits of threatened species may help to identify species vulnerable to exploitation and habitat loss, predict future declines in abundance and provide the basis for their conservation. We assessed the relationship of dietary and habitat niche breadth on conservation status of skate species (Chondrichthyes, Rajiformes). We hypothesized that skate species with a narrow niche breadth have a higher conservation concern than skate species with wide niche breadth. Conservation status (IUCN), dietary and depth range data on 57 skate species were collected. Generalized linear mixed effect models were fitted with taxonomic level (genera nested within family) included as a random effect term in each model. In each model, body size of skate species was included as a variable because this life history trait is a known predictor of vulnerability. A model selection approach to test the level of support for alternative models was applied. Our results support the hypothesis that a narrow niche breadth is related to high vulnerability. Skate species with high probability of being of conservation concern have a narrow trophic niche breadth and a large body size. We conclude that dietary niche breadth together with body size may be an important trait to identify potentially vulnerable skate species. Conservation biology faces the challenge of identifying what species are vulnerable to anthropogenic stressors and to determine why this is so. The predictive value of our results may allow to know a priori which species should receive prioritary attention.
Animal Conservation – Wiley
Published: Apr 1, 2020
Keywords: ; ; ; ; ; ; ;
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.