Competing subcommunities of mutualists
نویسندگان
چکیده
منابع مشابه
Host Plant Use by Competing Acacia-Ants: Mutualists Monopolize While Parasites Share Hosts
Protective ant-plant mutualisms that are exploited by non-defending parasitic ants represent prominent model systems for ecology and evolutionary biology. The mutualist Pseudomyrmex ferrugineus is an obligate plant-ant and fully depends on acacias for nesting space and food. The parasite Pseudomyrmex gracilis facultatively nests on acacias and uses host-derived food rewards but also external fo...
متن کاملDemonstrating research subcommunities in mathematical networks
We propose a method for demonstrating sub community structure in scientific networks of relatively small size from analyzing databases of publications. Research relationships between the network members can be visualized as a graph with vertices corresponding to authors and with edges indicating joint authorship. Using a fast clustering algorithm combined with a graph layout algorithm, we demon...
متن کاملAnts as Mutualists
The historical emphasis on the ecological and evolutionary importance of antagonistic interactions such as competition, predation, and parasitism is increasingly informed by a recognition of facilitative and mutualistic interactions where one or both participants receive a net benefit (Bertness and Callaway 1994; Bruno et al. 2003; Grosholz 2005; Stachowicz 2001). Interactions between ants and ...
متن کاملMutualists endow certain appetites
SCIENCE sciencemag.org However, mechanisms are also needed to block expression of genes that specify other cell lineages. Kim et al. identified such a mechanism in the Drosophila male germ line. A multiple–zinc finger protein and a chromatin remodeler were found to act together to block transcription from cryptic promoters. These factors prevented aberrant gene expression and enabled proper dif...
متن کاملEco-evolutionary dynamics of mutualists and exploiters.
With the growing recognition of exploiters as a prominent and enduring feature of many mutualisms, there is a need to understand the ecological and evolutionary dynamics of mutualisms in the context of exploitation. Here, we model coevolution between mutualist and exploiter birth rates, using an obligate pollinating seed parasite mutualism associated with a nonpollinating exploiter as a referen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Computers & Mathematics with Applications
سال: 1989
ISSN: 0898-1221
DOI: 10.1016/0898-1221(89)90013-8