Articles by Author: Jeremy J Midgley

Search results for Jeremy J Midgley

We found 50 results for you
  1. Competing seed consumers drive the evolution of scatter-hoarding: Why rodents do not put all their seeds in one larder

    Competing seed consumers drive the evolution of scatter-hoarding: Why rodents do not put all their seeds in one larder

    Item type: Journal Article • Journal: African Zoology
    Competition for food resources amongst animal seed dispersers and pilferers has driven dispersers to increasingly innovative seed-caching methods.We determined cache sizes in the field as well as seed cache recovery ability of a scatter-hoarding mouse, Acomys subspinosus, and compared these...
  2. Towards an isotope ecology of Cape Fynbos small mammals

    Towards an isotope ecology of Cape Fynbos small mammals

    Item type: Journal Article • Journal: African Zoology
    We investigated ecological separation through dietary partitioning of small mammals in the nutrient-poor Fynbos biome using a stable isotope approach. Hair samples from eight species of co-occurring small mammals in two separate locations were analysed for stable carbon (13C/12C) and...
  3. Further evidence that in African acacia, white is a warning colour to herbivores: the white pseudo-galls of <em>Vachellia seyal</em>

    Further evidence that in African acacia, white is a warning colour to herbivores: the white pseudo-galls of <em>Vachellia seyal</em>

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Pseudo-galls of three East African acacia (Vachellia) species were compared to determine the correlates of gall colour and their potential defensive functions. Although all three species produce white thorns, the pseudo-galls of V. gerrardii and V. drepanolobium are dark coloured...
  4. Camera-trapping and seed-labelling reveals widespread granivory and scatter-hoarding of nuts by rodents in the Fynbos Biome

    Camera-trapping and seed-labelling reveals widespread granivory and scatter-hoarding of nuts by rodents in the Fynbos Biome

    Item type: Journal Article • Journal: African Zoology
    Many plant–animal interactions can be challenging to directly observe, due to species being small, cryptic and/or nocturnal. Previous research on seed predation and dispersal by rodents in the Fynbos Biome of South Africa has relied on indirect evidence, as methods...
  5. Temperate forest dynamics and carbon storage: a 26-year case study from Orange Kloof Forest, Cape Peninsula, South Africa

    Temperate forest dynamics and carbon storage: a 26-year case study from Orange Kloof Forest, Cape Peninsula, South Africa

    Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science
    Temperate forests are globally important carbon stores that are, in the face of recent improvements in their conservation, likely to increase their storage capacity in the future. Despite this, these ecosystems are poorly understood, especially over longer time periods. To...
  6. Knysna Fynbos “Islands”: Origins and Conservation

    Item type: Journal Article • Journal: South African Forestry Journal
    Southern Cape indigenous forests have small islands of fynbos vegetation within them. It has been suggested that these islands are the result of anthropogenic disturbance of forest. In contrast, we argue that at least some of the islands are remnants...
  7. Short-term Effects of an Autumn Fire on Small Mammal Populations in Southern Cape Coastal Mountain Fynbos

    Item type: Journal Article • Journal: South African Forestry Journal
    This study provides information on the species composition and dynamics of small mammals in the Outeniqua mountains and their response to fire. Small mammal densities were monitored immediately prior to a March 1986 burn at three fynbos sites on the...
  8. The Germination of Seeds from Heated Serotinous Cones of Eight Shrubland Species

    Item type: Journal Article • Journal: South African Forestry Journal
    Freshly picked “cones” of eight serotinous species from fireprone shrubland ecosystems were exposed to short periods (30, 60, 90s) of high temperature (650 °C). In some species greater numbers of treated seeds germinated than seeds from the controls. The implications...
  9. Aspects of the Dynamics of the High Forest at Langebos (Alexandria Forest Type)

    Item type: Journal Article • Journal: South African Forestry Journal
    All of the four dominant canopy species in the tall forest at Langebos appear to have recruitment bottlenecks (i.e. a relative absence of small stems). All apparently need large gaps to recruit, except Podocarpus falcatus which is shade-tolerant. Compared with...
  10. Analysis of Stable Isotopes of Xylem Water from Plantation Trees in E. Transvaal and Zululand Indicate they Utilised Ground water During Drought of 1992

    Item type: Journal Article • Journal: South African Forestry Journal
    We investigated the stable isotopic signature of xylem sap of mature plantation trees and the associated ground water at sites in Zululand and E. Transvaal. The survey took place mainly during the drought of 1992. Results indicated a range of...