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The dimensionality of individual niche variation
(2018-03-01)
The inherently multidimensional nature of the niche has not yet been integrated into the investigation of individual niche specialization within populations. We propose a framework for modeling the between- and within-individual ...
Assessing the trophic niche of South American Terns integrating conventional and isotopic methods
(Csiro Publishing, 2016-12)
Conventional dietary studies combined with stable isotope analysis allowed the characterisation of the trophic niche of South American Terns (Sterna hirundinacea) breeding in Argentina. Direct observation of prey deliveries ...
Human-modified landscapes narrow the isotopic niche of neotropical birds
(Springer, 2021-04-09)
Deforestation and habitat loss resulting from land use changes are some of the utmost anthropogenic impacts that threaten tropical birds in human-modified landscapes (HMLs). The degree of these impacts on birds' diet, ...
Trophic niche differentiation in rodents and marsupials revealed by stable isotopes
(2016-04-01)
Tropical rainforests support the greatest diversity of small mammals in the world, yet we have little understanding about the mechanisms that promote the coexistence of species. Diet partitioning can favor coexistence by ...
Competition and resource breadth shape niche variation and overlap in multiple trophic dimensions
(2019-05-15)
Competition plays a central role in the maintenance of biodiversity. A backbone of classic niche theory is that local coexistence of competitors is favoured by the contraction or divergence of species' niches. However, ...
Intraspecific isotopic niche variation in broad-snouted caiman (Caiman latirostris)
(Taylor & Francis, 2013-10)
Strategies to minimise intraspecific competition are common in wild animals. For example, individuals may exploit food resources at different levels of the food chain. Analyses of stable isotopes are particularly useful ...
Functional traits and environmental conditions predict community isotopic niches and energy pathways across spatial scales
(2018-10-01)
Despite ongoing research in food web ecology and functional biogeography, the links between food web structure, functional traits and environmental conditions across spatial scales remain poorly understood. Trophic niches, ...
Using delta C-13 stable isotopes to quantify individual-level diet variation
(SpringerNew YorkEUA, 2007)
Individual-level diet variation in four species of Brazilian frogs
(WILEY-BLACKWELL PUBLISHING, INC, 2009)
Many natural populations exploiting a wide range of resources are actually composed of relatively specialized individuals. This interindividual variation is thought to be a consequence of the invasion of `empty` niches in ...