Creator | Title | Description | Subject | Date | ||
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1 |
![]() | Davidson, Diane W. | Granivory in a desert ecosystem: experimental evidence for indirect facilitation of ants by rodents | Two major groups of desert granivores, ants and rodents, coexist as permanent residents of local desert habitats in southwestern North America. At our Sonoran Desert study site, both of the major taxa exhibited short-term increase in density when the other taxon was experimentally removed. Over the... | Ants; Arizona; Desert annuals; Facilitation; Granivory; Indirect mutualism; Rodents; Seed predation; Sonoran Desert | 1984 |
2 |
![]() | Davidson, Diane W. | Experimental study of diffuse competition in harvester ants | Experiments carried out over a 5-yr period in the Chihuahuan Desert support the a priori prediction of diffuse competition between two species of harvester ants. Despite dietary overlap between a large species {Pogonomyrmex rugosus) and a small species (Pheidole xerophila), the large species facilit... | Chihuahuan Desert; Ants; Facilitation; Resource allocation; Granivory | 1985 |
3 |
![]() | Davidson, Diane W. | Competition and the structure of granivore communities | We trace the development of our investigations of granivory in desert ecosystems, illustrating the synthesis of the comparative and experimental approaches and noting the essential contributions of both. In the process, we also call attention to several major difficulties inherent to experimentatio... | Granivory; Competition; Desert Ecosystems; Competitive investigations; Experimental investigations | 1980 |
4 |
![]() | Davidson, Diane W. | Preliminary study of seed predation in desert and montane habitats | Multifactorial experiments in which domestic seeds in shallow glass containers were distributed in desert and montane habitats provided data on identity of seed predators (whether rodents or ants), spatial and temporal pattern of their foraging activities, and their preferences for sizes and species... | Ant; Competition; Granivory; Predators, Seed; Rodent; Seed selection | 1975 |