Long?duration remote underwater videos reveal that grazing by fishes is highly variable through time and dominated by non?indigenous species

Risk and Nonindigenous Species Management ∗

S nonindigenous species threaten people by contributing to biodiversity loss and environmental damage (Elton; Kareiva). Managing such threats cost-effectively requires a consistent framework that captures the biological and economic circumstances that jointly determine the level of risk and the optimal mix of prevention and control strategies. The economic theory of endogenous risk provides suc...

Diversity and Composition of Demersal Fishes along a Depth Gradient Assessed by Baited Remote Underwater Stereo-Video

BACKGROUND Continental slopes are among the steepest environmental gradients on earth. However, they still lack finer quantification and characterisation of their faunal diversity patterns for many parts of the world. METHODOLOGY/PRINCIPAL FINDINGS Changes in fish community structure and diversity along a depth gradient from 50 to 1200 m were studied from replicated stereo baited remote under...

Serum Level of Soluble CD226 Receptor in Healthy Individuals is Highly Variable and Associated with Age

Urban Bird Feeders Dominated by a Few Species and Individuals

The practice of garden bird feeding is a global phenomenon, involving millions of people and vast quantities of food annually. Many people engage in the practice of feeding assuming that birds gain some benefit from the food they provide, yet recent studies have revealed the potential for detrimental impacts as well. However, there is still a paucity of information on the impacts of feeding, in...

Microrheology of highly crosslinked microtubule networks is dominated by force-induced crosslinker unbinding.

We determine the time- and force-dependent viscoelastic responses of reconstituted networks of microtubules that have been strongly crosslinked by biotin-streptavidin bonds. To measure the microscale viscoelasticity of such networks, we use a magnetic tweezers device to apply localized forces. At short time scales, the networks respond nonlinearly to applied force, with stiffening at small forc...