Delay equation models for populations that experience competition at immature life stages

Models for Interacting Populations of Memes: Competition and Niche Behavior

We make use of a set of text analysis tools, primarily based on Latent Semantic Indexing, to study the dynamics of memes on the Net. Our analysis discovers replicating memes within posts to the USENET News (or NetNews) system. We cluster the posts to NetNews into clouds within a conceptual sequence space; these clusters describe quasispecies. We then go on to study the pairwise interactions bet...

Procurement Competition at Work: The Manufacturer's Experience

A new genus of Eucharitidae (Hymenoptera: Chalcidoidea), with notes on life history and immature stages.

Neolirata new genus (Eucharitidae: Eucharitini) is recognized based on males and females, with new descriptions of eggs, planidia and pupae. Redescriptions are provided for N. alta (Walker) and N. daguerrei (Gemignani) (comb. nov. transferred from Lirata) and a new description of N. furcula sp. nov. is presented. Females of N. alta deposit their eggs on the underside of leaves of Pseudabutilon ...

DNA barcoding identifies all immature life stages of a forensically important flesh fly (Diptera: Sarcophagidae).

Carrion-breeding insects, such as flesh flies (Diptera: Sarcophagidae), can be used as evidence in forensic investigations. Despite their considerable forensic potential, their use has been limited because morphological species identification, at any life stage, is very challenging. This study investigated whether DNA could be extracted and cytochrome oxidase subunit I (COI) barcode sequences o...

Description of Immature Stages and Life Cycle of the Treehopper, Guayaquila projecta

Immature stages of the membracid Guayaquila projecta (Funkhouser) (Hemiptera: Cicadomorpha: Membracidae), collected in San Salvador de Jujuy, Argentina on Bougainvillea glabra Choisy (Caryophyllales: Nyctaginaceae), are described in detail based on specimens reared in the laboratory. Like other membracids, this species has five nymphal instars, not seven as previously reported. Morphological ch...