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In search of forage: predicting dynamic habitats of Mongolian gazelles using satellite-based estimates of vegetation productivity
Summary 1. Temporal variability in habitat suitability has important conservation and ecological implica tions. In grasslands, changes in resource availability can occur at broad spatial scales and
Using higher-taxon richness as a surrogate for species richness: I. Regional tests
TLDR
Congruence between species and higher-taxon richness across protected areas in Indo-Malaya and the Pacific rim is explored and it is found that species richness within individual higher taxa was potentially as powerful an indicator of the overall species diversity of a site as the number of high taxa it contained.
Testing Hamilton's rule with competition between relatives
TLDR
The level of fighting between males shows no correlation with the estimated relatedness of interacting males, but is negatively correlated with future mating opportunities, indicating that across species, the effects of relatedness and competition between relatives can be separated.
Vegetation modification and resource competition in grazing ungulates
TLDR
The findings indicate the conditions under which each ungulate species may limit the other's use of natural pastures through interspecific competition: bite quantity competition may apply on short grazing lawns; bite quality competition is expected on differentiated swards with a limited supply of green leaf.
Figs (Ficus spp.) and fig wasps (Chalcidoidea, Agaonidae): hypotheses for an ancient symbiosis
TLDR
It is argued first that this pattern of abortion will be selected during a sustained period of heavy wasp infestation because seeds will then become scarce relative to pollen-carrying wasps, and increased expenditure by the fig on seed production would therefore be favoured by natural selection.
Niche separation of grazing ungulates in the Serengeti: an experimental test
TLDR
Bite weight and intake rate of wildebeest and topi were similar despite the difference in breadth of their incisor rows, and Wildebeest had a faster bite rate than either topi or hartebeest on swards with low biomass and high protein content of green leaf.
Home range, dispersal and the clan system of impala
  • M. Murray
  • Environmental Science
  • 1 December 1982
TLDR
Female impala enhance their breeding success by longevity rather than competition and this was achieved through the clan system and its variation is related to cycling of resources in neighbouring habitats, and to differences in territorial behaviour by adult males.
Environmental constraints on fighting in flightless male fig wasps
  • M. Murray
  • Environmental Science
    Animal Behaviour
  • 1 August 1989
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