Re‐assessing the applicability of the Jarman/Bell model and Kay's threshold to the insectivorous aye‐aye ( Daubentonia madagascariensis )
Bibliographic Data
OBJECTIVES: Jarman/Bell principle and Kay's threshold suggest that large animals should not be able to sustain themselves on insects. However, animals with specialized morphological and/or behavioral adaptations violate these assumptions. Male aye-ayes were recently identified as having an insectivorous diet despite weighing 2.5 kg. We further explored this diet/body size disparity by studying behaviors of an adult female and juvenile male aye-aye. MATERIALS AND METHODS: We collected behavioral data on an adult female and juvenile male aye-aye in Torotorofotsy, Madagascar from January 2016 to December 2017. We used instantaneous sampling to determine the frequency of feeding events and continuous sampling during feeding behaviors to assess duration of feeding bouts. RESULTS: Invertebrates comprised over 88% of the diet for both animals. A Wilcoxon signed-rank test found no significant difference in the female's feeding frequencies between the hot/rainy seasons and the cold/dry seasons. DISCUSSION: Our results support earlier findings that invertebrates are the aye-aye's main resource and corroborate that aye-ayes violate assumptions of the Jarman/Bell model and Kay's threshold. We suggest that the Jarman/Bell principle and Kay's threshold be used as supporting evidence and not to repudiate findings that do not conform to these guidelines
Adult male · Biology · Insectivore · Juvenile · Predation · Rodent · Zoology · Ecology · Insect Utilization and Effects · Primate Behavior and Ecology · Wildlife Ecology and Conservation
Species differences in substrate use and diet between sympatric galagos in two Kenyan coastal forests
Comparing the use of live trees and deadwood for larval foraging by aye-ayes (Daubentonia madagascariensis) at Kianjavato and Torotorofotsy, Madagascar
On the Use of Anatomical Features To Infer Foraging Behavior in Extinct Primates
The Social Organisation of Antelope in Relation To Their Ecology
Observational Study of Behavior
Resting metabolic rates ofLepilemur ruficaudatus
Diet for a small primate
A Jarman/Bell model of primate feeding niches
Diet and Feeding Behavior of Mysore Slender Lorises
Food Resource Characteristics in Two Nocturnal Lemurs with Different Social Behavior
The functional adaptations of primate molar teeth
The 'other faunivory' revisited
Nutritional contributions of insects to primate diets
Locomotor activity differences between sympatric patas monkeys (Erythrocebus patas) and vervet monkeys (Cercopithecus aethiops)
| Unique citing works | 4 |
|---|---|
| Citations per year | 0,8 |
| Citation span | 2021 - 2026 (6) |
| Citation velocity | current |
| Highly cited | No |
| Citation types | Neutral: 3 |