Access the full text.
Sign up today, get DeepDyve free for 14 days.
Y. Hsu, P. Shaner, C. Chang, Linhua Ke, S. Kao (2014)
Trophic niche width increases with bill-size variation in a generalist passerine: a test of niche variation hypothesis.The Journal of animal ecology, 83 2
G. Costa, D. Mesquita, G. Colli, L. Vitt (2008)
Niche Expansion and the Niche Variation Hypothesis: Does the Degree of Individual Variation Increase in Depauperate Assemblages?The American Naturalist, 172
M. Tinker, Gena Bentall, J. Estes (2008)
Food limitation leads to behavioral diversification and dietary specialization in sea ottersProceedings of the National Academy of Sciences, 105
D. Schindler, R. Hilborn, B. Chasco, Christopher Boatright, T. Quinn, L. Rogers, M. Webster (2010)
Population diversity and the portfolio effect in an exploited speciesNature, 465
L. Valen (1965)
MORPHOLOGICAL VARIATION AND WIDTH OF ECOLOGICAL NICHEThe American Naturalist, 99
M. Flowers, B. Graves (1995)
PREY SELECTIVITY AND SIZE-SPECIFIC DIET CHANGES IN BUFO COGNATUS AND B. WOODHOUSII DURING EARLY POSTMETAMORPHIC ONTOGENYJournal of Herpetology, 29
L. Harder, D. Schluter (2000)
The Ecology of Adaptive RadiationAmerican Journal of Botany
R. Shine (1991)
Intersexual Dietary Divergence and the Evolution of Sexual Dimorphism in SnakesThe American Naturalist, 138
Liliana Ortíz-Serrato, G. Ruiz-Campos, Jorge Valdez-Villavicencio (2014)
Diet of the Exotic American Bullfrog, Lithobates catesbeianus, in a Stream of Northwestern Baja California, Mexico, 74
S. Salvidio, F. Oneto, D. Ottonello, Andrea Costa, A. Romano (2015)
Trophic specialization at the individual level in a terrestrial generalist salamanderCanadian Journal of Zoology, 93
M. Taper, T. Chase (1985)
Quantitative Genetic Models for the Coevolution of Character DisplacementEcology, 66
J. Roughgarden (1972)
Evolution of Niche WidthThe American Naturalist, 106
F. Scharf, F. Juanes, R. Rountree (2000)
Predator size - prey size relationships of marine fish predators: interspecific variation and effects of ontogeny and body size on trophic-niche breadthMarine Ecology Progress Series, 208
M. Díaz (1994)
Variability in seed size selection by granivorous passerines: effects of bird size, bird size variability, and ecological plasticityOecologia, 99
C. Cloyed, P. Eason (2017)
Niche partitioning and the role of intraspecific niche variation in structuring a guild of generalist anuransRoyal Society Open Science, 4
J. Iriarte-Díaz (2002)
Differential scaling of locomotor performance in small and large terrestrial mammals.The Journal of experimental biology, 205 Pt 18
C. Cloyed, S. Newsome, P. Eason (2015)
Trophic Discrimination Factors and Incorporation Rates of Carbon- and Nitrogen-Stable Isotopes in Adult Green Frogs, Lithobates clamitansPhysiological and Biochemical Zoology, 88
D. Bolnick, R. Svanbäck, R. Svanbäck, J. Fordyce, Louie Yang, Jeremy Davis, C. Hulsey, M. Forister (2002)
The Ecology of Individuals: Incidence and Implications of Individual SpecializationThe American Naturalist, 161
Iriarte-Díaz (2002)
Differential scaling of locomotor performance in large and small terrestrial mammalsJ. Exp. Biol., 205
R. Svanbäck, D. Schluter (2012)
Niche Specialization Influences Adaptive Phenotypic Plasticity in the Threespine SticklebackThe American Naturalist, 180
D. Bolnick, P. Amarasekare, M. Araújo, R. Bürger, J. Levine, M. Novak, V. Rudolf, S. Schreiber, M. Urban, David Vasseur (2011)
Why intraspecific trait variation matters in community ecology.Trends in ecology & evolution, 26 4
Michael Benard, Jessica Maher (2011)
Consequences of intraspecific niche variation: phenotypic similarity increases competition among recently metamorphosed frogsOecologia, 166
D. Hoeinghaus, S. Zeug (2008)
Can stable isotope ratios provide for community-wide measures of trophic structure? Comment.Ecology, 89 8
R. Svanbäck, D. Bolnick (2007)
Intraspecific competition drives increased resource use diversity within a natural populationProceedings of the Royal Society B: Biological Sciences, 274
S. Vincent, P. Vincent, D. Irschick, J. Rossell (2006)
Do juvenile gape‐limited predators compensate for their small size when feeding?Journal of Zoology, 268
A. Lima (1998)
THE EFFECTS OF SIZE ON THE DIETS OF SIX SYMPATRIC SPECIES OF POSTMETAMORPHIC LITTER ANURANS IN CENTRAL AMAZONIAJournal of Herpetology, 32
A. Jackson, R. Inger, A. Parnell, S. Bearhop (2011)
Comparing isotopic niche widths among and within communities: SIBER - Stable Isotope Bayesian Ellipses in R.The Journal of animal ecology, 80 3
Bruce Patterson (1983)
GRASSHOPPER MANDIBLES AND THE NICHE VARIATION HYPOTHESISEvolution, 37
P. Pepin, R. Penney (1997)
Patterns of prey size and taxonomic composition in larval fish: are there general size-dependent models?Journal of Fish Biology, 51
J. Marden (1994)
From damselflies to pterosaurs: how burst and sustainable flight performance scale with size.The American journal of physiology, 266 4 Pt 2
M. Soulé, B. Stewart (1970)
The "Niche-Variation" Hypothesis: A Test and AlternativesThe American Naturalist, 104
M. Solé, O. Beckmann, Birgit Pelz, A. Kwet, W. Engels (2005)
Stomach-flushing for diet analysis in anurans: an improved protocol evaluated in a case study in Araucaria forests, southern Brazil*Studies on Neotropical Fauna and Environment, 40
K. Dial, E. Greene, D. Irschick (2008)
Allometry of behavior.Trends in ecology & evolution, 23 7
Shai Meiri, T. Dayan, D. Simberloff (2005)
VARIABILITY AND SEXUAL SIZE DIMORPHISM IN CARNIVORES: TESTING THE NICHE VARIATION HYPOTHESISEcology, 86
D. Bolnick, R. Svanbäck, M. Araújo, L. Persson (2007)
Comparative support for the niche variation hypothesis that more generalized populations also are more heterogeneousProceedings of the National Academy of Sciences, 104
T. Dayan, D. Simberloff (1994)
Character Displacement, Sexual Dimprphism, and Morphological Variation among British and Irish MustelidsEcology, 75
M. Dennison, A. Baker (1991)
MORPHOMETRIC VARIABILITY IN CONTINENTAL AND ATLANTIC ISLAND POPULATIONS OF CHAFFINCHES (FRINGILLA COELEBS)Evolution, 45
C. Cloyed, P. Eason (2016)
Different ecological conditions support individual specialization in closely related, ecologically similar speciesEvolutionary Ecology, 30
C. Chamberlain, Jacob Waldbauer, K. Fox-Dobbs, Seth Newsome, Paul Koch, Donald Smith, Molly Church, Samuel Chamberlain, K. Sorenson, R. Risebrough (2005)
Pleistocene to recent dietary shifts in California condors.Proceedings of the National Academy of Sciences of the United States of America, 102 46
D. Bolnick, Louie Yang, J. Fordyce, Jeremy Davis, R. Svanbäck (2002)
MEASURING INDIVIDUAL-LEVEL RESOURCE SPECIALIZATIONEcology, 83
C. Taylor, Sandra Caldwell, Victoria Rowntree (1972)
Running Up and Down Hills: Some Consequences of SizeScience, 178
Tracey Werner, T. Sherry (1987)
Behavioral feeding specialization in Pinaroloxias inornata, the "Darwin's Finch" of Cocos Island, Costa Rica.Proceedings of the National Academy of Sciences of the United States of America, 84 15
J. Lasky, Jie Yang, Guocheng Zhang, M. Cao, Yong Tang, T. Keitt (2014)
The role of functional traits and individual variation in the co-occurrence of Ficus species.Ecology, 95 4
The niche variation hypothesis (NVH) states that populations with wider niches are more phenotypically variable. The NVH has important ecological and evolutionary implications but has been controversial since its inception. Recent interpretations have supported the NVH by directly comparing among-individual diet variation with population dietary niche breadth. Traditional studies of the NVH focused on morphological traits as proxies of niche variation, with contradictory results. Gape-limited predators may be relatively likely to show effects of morphological variation on diet breadth because gape size can strongly limit diet. We used five anurans to test NVH predictions, including three true frogs, Rana catesbeiana, R. clamitans, and R. sphenocephala, and two toads, Anaxyrus americanus and A. fowleri. We combined recent and traditional approaches by comparing both individual variation in diet and variation in gape width with dietary niche breadth. We found support for the NVH within two species of the three true frogs but not for either toad species, a difference likely driven by greater strength of the feeding limitation caused by gape width in the frogs. Toads had higher gape width to snout-vent length ratios, reducing the strength of the feeding limitation imposed by gape width. We found strong support for the NVH among species; species with more among-individual variation in diet and species with more variation in gape width had broader niches. Our results highlight the circumstances under which the NVH is applicable and demonstrate an example in which the NVH is supported through both traditional and recent interpretations.
Amphibia-Reptilia – Brill
Published: Jul 29, 2017
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.