Results 31 to 40 of about 266,972 (277)
Determining trophic niche width: a novel approach using stable isotope analysis [PDF]
1. Although conceptually robust, it has proven difficult to find practical measures of niche width that are simple to obtain, yet provide an adequate descriptor of the ecological position of the population examined. 2.
Bearhop, S. +8 more
core +1 more source
Niche breadth of Amazonian trees increases with niche optimum across broad edaphic gradients [PDF]
AbstractUnderstanding how biotic interactions and environmental filtering mediated by soil properties shape plant community assembly is a major challenge in ecology, especially when studying complex and hyperdiverse ecosystems like tropical forests. To shed light on the influence of both factors, we examined how the edaphic optimum of species (their ...
Vleminckx, Jason +17 more
openaire +4 more sources
Coleoptera are key elements of terrestrial trophic interactions and generate significant economic and ecological benefits, but their representatives also represent severe pest species.
Marianna V. P. Simões +7 more
doaj +1 more source
Metabolic flexibility as a major predictor of spatial distribution in microbial communities [PDF]
A better understand the ecology of microbes and their role in the global ecosystem could be achieved if traditional ecological theories can be applied to microbes. In ecology organisms are defined as specialists or generalists according to the breadth of
Carbonero Franck +11 more
core +2 more sources
Smarandache Breadth Pseudo Null Curves in Minkowski Space-time [PDF]
A regular curve with more than 2 breadths in Minkowski 3-space is called a Smarandache Breadth Curve [8]. In this short paper, we adapt notion of Smarandache breadth curves to Pseudo null curves in Minkowski space-time and study a special case of ...
Turgut, Melih, Melih Turgut
core +1 more source
The relationship between niche breadth and geographic range size in African Horseshoe bats (Rhinolophidae, Chiroptera) [PDF]
According to Brown's hypothesis, generalists have high niche breadth and can tolerate a wide variety of environmental conditions resulting in large geographic range sizes. Conversely, specialists have low niche breadth and small range sizes.
Aronson, Jonathan
core +1 more source
Levins niche breadth data for desert bighorn sheep. Levins niche breadth was calculated from individual fecal pellet groups collected from female desert bighorn sheep. Individual levins indices were then averaged for each year, season and climate period.
Jamison D. Allen (8028692) +15 more
core +2 more sources
Feeding ecology of endemic frogs of the Atlantic Forest in southern Brazil [PDF]
Our objective was to describe and compare the diet of endemic anurans of the Atlantic Forest, as well as to evaluate the influence of biotic factors on the trophic ecology of the species.
CAMILA FERNANDA MOSER +4 more
doaj +1 more source
On niche breadth and related concepts [PDF]
Abstract Niche breadth values of three hypothetical resource matrices have been computed by means of four different formulae eventually giving rise to contrasting results. Starting from these results some remarks upon the niche breadth and related concepts are made. It is stressed, on the one hand, that any mathematical approach to the measure of niche
openaire +2 more sources
A Simple Measure of Niche Breadth
Niche breadths in animal and plant populations are often measured without regard to the relative frequencies of the various resources available to the organisms. Recent papers have provided more accurate indices for use when available resources can be quantified. These indices may lack wide applicability or simple biological interpretations. We suggest
Feinsinger, Peter +2 more
openaire +1 more source

