In the Southern Hemisphere, humpback whales (Megaptera novaeangliae) were heavily exploited from both coastal stations and in pelagic waters all major ocean basins. About 200,000 taken after 1900, causing declines of populations to small percentages their pre-exploitation levels. The study presented here aimed investigate whale abundance Brazilian breeding ground, order provide information supp...

Spam becomes a problem as soon as an online communication medium becomes popular. Twitter's behavioral and structural properties make it a fertile breeding ground for spammers to proliferate. In this article we examine spam around a one–time Twitter meme — " robotpickuplines ". We show the existence of structural network differences between spam accounts and legitimate users. We conclude by hig...

Mobile devices have become an important platform for understanding social dynamics and influence, because of their pervasiveness, sensing capabilities and computational powers. The convergence of mobile and cloud computing is forming the breeding ground for real world applications in a research field known as reality mining. This is undoubtedly an interesting field, which is gaining new momentu...

An enduring problem in avian ecology and conservation is linking breeding and wintering grounds of migratory species. As migratory species and populations vary in the degree to which individuals from distinct breeding locales mix on stop-over sites and wintering grounds, establishing migratory connectivity informs our understanding of population demography and species management. We present a n...

Resources for egg production may come from body reserves stored before breeding (‘‘capital breeders’’) or from food acquired at the breeding site (‘‘income breeders’’). Arctic migrants were long thought to be capital breeders, because they often arrive at a time when local food availability is still limited. However, later evidence suggested that arctic breeding shorebirds are primarily income ...

—The Nebraska Sandhills are an important area for breeding ducks in the Great Plains, but reliable estimates of breeding populations are unavailable. Double-observer methodology was used to estimate abundance of breeding duck populations in the Nebraska Sandhills. Aerial transect surveys were conducted using methodology similar to the cooperative Waterfowl Breeding Population and Habitat Survey...

Sexual conflict theory suggests that female breeding success is strongly influenced by individual life history and environmental conditions and is much less affected by mate availability. Female mating failure due to a shortage of males remains poorly studied and understood. We present data on the effects of male availability on female breeding success in a wild colony of yellow ground squirrel...

The abundant and widespread Common Starling (Sturnus vulgaris) is currently declining across much of Europe due to landscape changes caused by agricultural intensification. The proximate mechanisms causing adverse effects to breeding Starlings are unclear, hampering our ability to implement cost-efficient agri-environmental schemes to restore populations to former levels. This study aimed to sh...