The acorn woodpecker is among the most common primary cavity nesting bird of the Oregon white oak woodlands. In most of their range, acorn woodpeckers are dependent on granaries for acorn storage, yet little is known about their selection of granary sites. We compared habitat characteristics within 12 m of granary and non-granary trees at 20 acorn woodpecker colonies in Benton County, Oregon du...

ACORN (Agent-based Community Oriented Routing Network) is a distributed multi-agent architecture for the search, distribution and management of information in networks. ACORN utilizes the concept of ‘information as agent’ together with an application of Stanley Milgram’s Small World Problem (the idea of Six Degrees of Separation) in order to route individual items of information around networks...

A Classification of Residential Neighborhoods (ACORN) and the Registrat General's social class classification were compared on measures of health and service use based on a sample of 5500 primary school children in England. ACORN was shown to differentiate at least as well as social class on the selected outcome measures and to identify small areas with particularly high rates of morbidity. Nev...

Masting, the intermittent and synchronized production of seeds, is a common and important phenomenon throughout the plant kingdom. Surprisingly, the proximate mechanisms by which populations of masting plants synchronize their seed sets have been relatively unexplored. We examined how temperature influences the acorn crop of the valley oak Quercus lobata, a masting species common in California,...

We investigated how pre-dispersal strategies may mitigate the effects of weevil infestation of acorns in a population of Quercus schottkyana, a dominant oak in Asian evergreen broad-leaved forests, and assess if weevil infestation contributes to low seedling recruitment. We counted the number of acorns produced, daily from the end of August to mid-late November for 9 years from 2006-2014. We al...

ACORN Agent based Community Oriented Retrieval Network is a multi agent system which uses agents to provide information across inter net intranet networks In this report we adapt the ACORN architecture for its performance evaluation on single and multiple servers running on single and multiple machines In order to evaluate the performance of ACORN we introduce a novel concept of multiple autono...

Th e acorn woodpecker ( Melanerpes formicivorus ) plays an important role in the history of cooperative breeding. It was one of the earliest species for which cooperative breeding was noted with more than two individuals feeding at a single nest as well as apparent mate-sharing (Myers 1915 ; Leach 1925 ; Michael 1927 ). Subsequently, in his classic Animal Dispersion in Relation to Social Behavi...

Curculio glandium is one of the pre-dispersal seed predators occurring in Central Europe. It associated with Quercus robur, acorns which are shelter and food sources for developing larvae. Females species, to our knowledge, lacking marking pheromones or do not use them; therefore, nature, multiple infestations (over 10 eggs larvae) same host fruit can be found. Such density provoke very strong ...