▪ Abstract Recent overviews have suggested that the relationship between species richness
and productivity (rate of conversion of resources to biomass per unit area per unit time) is …

In almost every field of science, and nowhere more than in biology, a tension has existed
constantly between the experimentalists and the theorists; the tension is particularly strong …

A recent field manipulation on a terrestrial vertebrate showed that the fear of predators alone
altered anti-predator defences to such an extent that it greatly reduced the reproduction of …

抄録< jats: p> Why do larger areas have more species? What makes diversity so high near
the equator? Has the number of species grown during the past 600 million years? Does …

A new hypothesis, based on differences in the rates at which populations of competing
species approach competitive equilibrium (reduction or exclusion of some species), is …

Man-made perturbations' often have a subsidy-stress effect; low levels may enhance,
whereas higher levels depress ecosystem function and/or specific species components …

This work is intended for use as a text-book by undergraduate and graduate students of
entomology. It is designed to familiarise the reader with the general literature on ecology …

The main concern of this paper is with survival or extinction of predators in models of
predator-prey systems exhibiting group defence of the prey. It is shown that if there is no …

An analysis was made of the indirect interactions between competing consumers. Two
mechanisms for such interactions were investigated, interactions between the resource …

The importance of nutrient limitation and recycling in ecosystems is widely recognized.
Nutrients, defined in the broad sense as all material elements vital to biological functions …