• Publications
  • Influence
Understorey versus canopy: patterns of vertical stratification and diversity among Lepidoptera in a Bornean rain forest
We studied the vertical distribution of Lepidoptera from a canopy walkway within a dipterocarp rain forest at Kinabalu Park (Borneo) using three different methods: (1) Bait traps to surveyExpand
  • 145
  • 16
Extrafloral nectar production of the ant-associated plant, Macaranga tanarius, is an induced, indirect, defensive response elicited by jasmonic acid.
Plant species in at least 66 families produce extrafloral nectar (EFN) on their leaves or shoots and therewith attract predators and parasitoids, such as ants and wasps, which in turn defend themExpand
  • 262
  • 14
  • PDF
Effects of light and prey availability on nocturnal, lunar and seasonal activity of tropical nightjars
Nightjars and their allies represent the only major group of visually hunting aerial insectivores with a crepuscular andlor nocturnal lifestyle. Our purpose was to examine how both light regime andExpand
  • 79
  • 14
  • PDF
Temporal, spatial and biotic variations in extrafloral nectar secretion by Macaranga tanarius
Summary 1. Many plants produce extrafloral nectar (EFN) to nourish ants and other animals which defend them against herbivores. We aimed to find reasons for the high variability in amounts of EFNExpand
  • 203
  • 12
  • PDF
Stratification of ants (Hymenoptera, Formicidae) in a primary rain forest in Sabah, Borneo
The ant fauna of a rain forest in Sabah, Malaysia was sampled by using different collecting methods in three strata. In total, 524 morphospecies of ants could be distinguished. They belong to sevenExpand
  • 153
  • 12
Reduced growth and seed set following chemical induction of pathogen defence: does systemic acquired resistance (SAR) incur allocation costs?
Summary 1  Although most theories on plant defence assume that costs will result from the production and maintenance of defensive traits, studies on the costs of induced defence againstExpand
  • 271
  • 10
  • PDF
Pollen amino acids and flower specialisation in solitary bees
Pollen nutrient composition could be important in host-plant selection of oligolectic bees. In this study, pollen samples from 142 plant species were analysed separately for water-soluble andExpand
  • 78
  • 10
  • PDF
Environmental Factors Affect Acidobacterial Communities below the Subgroup Level in Grassland and Forest Soils
ABSTRACT In soil, Acidobacteria constitute on average 20% of all bacteria, are highly diverse, and are physiologically active in situ. However, their individual functions and interactions with higherExpand
  • 198
  • 9
  • PDF
Fragrance Collection, Storage, and Accumulation by Individual Male Orchid Bees
Individually marked males of two species of Euglossa were sighted repeatedly and over considerable periods of time (up to 44 days) at artificial fragrance baits exposed on Barro Colorado IslandExpand
  • 130
  • 9
  • PDF
Size does matter – effects of tropical rainforest fragmentation on the leaf litter ant community in Sabah, Malaysia
Primary tropical lowland rainforest in Sabah, Malaysia, has been largely reduced to small to medium-sized, often isolated, forest islands surrounded by a highly altered agricultural landscape. TheExpand
  • 130
  • 9
  • PDF