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Since food is one of the most important dimensions of the niche, the analysis of animal diets is closely related to the problem of niche specifications. In this chapter I will review niche metrics and the related measurement of dietary overlap and dietary preferences.
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16 Οκτ 2024 · Niche Breadth: Generalists have wide niche breadth, allowing them to exploit a variety of resources and conditions. Specialists have narrow niche breadth, focusing on specific resources and conditions.
We highlight how considering hierarchical niche structure, correlations in breadth among niche axes, and factors that differentiate realized and fundamental niches may enhance our understanding of ecological and evolutionary questions and improve conservation outcomes.
We found a significant positive relationship between range size and environmental tolerance breadth (z = 0.49), habitat breadth (z = 0.45), and diet breadth (z = 0.28). The overall positive effect persisted even when incorporating sampling effects.
Whether niche breadth determines diversification and distribution breadth and how niche breadth is partitioned among individuals and populations within a species are important but particularly understudied topics.
9 Ιουλ 2018 · Niche breadth can be described by a species occurrence range on an environmental gradient. Knowledge of niche breadths is necessary to predict extinction risks (Kotiaho, Kaitala, Komonen, & Päivinen, 2005) and design conservation measures (Gaston et al., 2000).
