The national strategic management plan for the mourning dove calls for the implementation of an operational monitoring program of recruitment rates that is national in scale. Age ratios estimates, i.e. juveniles per adult, generated from harvest wing collections are a potentially efficient method for large-scale monitoring of recruitment for the species. Generating unbiased estimates of recruit...

Selective harvest regimes are often focused on males resulting in skewed sex-ratios, and for many ungulate species this strategy is sustainable. However, muskoxen (Ovibos moschatus) are very social and mature bulls (≥4 years old), particularly prime-age bulls (6-10 years old), play important roles in predator defense and recruitment. A year-round social structure incorporating large males into ...

Sealing log books from 75 out of 79 commercial harvest cruises carried out between 1972 and 1994 in the Sea of Okhotsk, Russia, were analyzed to describe spatial and temporal allocation of ice-associated seal harvest effort, species composition of catches, total harvest rates, and related parameters for species including ringed (Pusa hispida), ribbon (Histriophoca fasciata), bearded (Erignathus...

We evaluate the current commercial harvest of harp seal (Pagophilus groenlandicus) and proposed subsistence harvests of northern fur seal (Callorhinus ursinus) pups based on intraspecific comparisons. These comparisons utilize a pattern derived from 167 cases of estimated consumption rates by large mammals. In all cases, the predation rates involve large mammal prey less than 1 year of age. Rec...

BACKGROUND Wildlife populations are difficult to monitor directly because of costs and logistical challenges associated with collecting informative abundance data from live animals. By contrast, data on harvested individuals (e.g., age and sex) are often readily available. Increasingly, integrated population models are used for natural resource management because they synthesize various relevan...

BACKGROUND Predation and hunter harvest constitute the main mortality factors affecting the size and dynamics of many exploited populations. The re-colonization by wolves (Canis lupus) of the Scandinavian Peninsula may therefore substantially reduce hunter harvest of moose (Alces alces), the main prey of wolves. METHODOLOGY/PRINCIPAL FINDINGS We examined possible effects of wolf presence on h...

Summary Aim: In winegrape production, pruning, canopy management, and harvest are essential practices that increasingly being done by machines. How well these executed can substantially affect fruit yield quality. Mechanization offers timeliness, uniformity, cost benefits, but most methods available to date nonselective optimal execution requires careful attention vineyard des...

Just as “innovate or die” is one of the mantras of today’s economy, knowledge is increasingly recognized as the key underpinning resource. Effective innovation that improves the ability of an organization to remain competitive within an uncertain environment requires the creation, capture, harvest, sharing and application of knowledge and expertise. The ability of an organization to ‘learn’ mea...