Water entry impact dynamics of diving birds

The Effect of Asymmetric Water Entry on the Hydrodynamic Impact

The effect of the asymmetric water entry over a submerged part of a ship on the hydrodynamic impact is investigated numerically. A wedge body is considered to study and the problem is assumed to be two-dimensional. The Results of symmetric and asymmetric impacts are compared together. The effect is found significant in the numerical simulation. The maximum hydrodynamic pressure at a heel angle ...

The physiological basis of diving to depth: birds and mammals.

There is wide diversity in the animals that dive to depth and in the distribution of their body oxygen stores. A hallmark of animals diving to depth is a substantial elevation of muscle myoglobin concentration. In deep divers, more than 80% of the oxygen store is in the blood and muscles. How these oxygen stores are managed, particularly within muscle, is unclear. The aerobic endurance of four ...

Diving Birds of North America: Species Accounts — Loons (Gaviidae)

Reduced taxonomic richness of lice (Insecta: Phthiraptera) in diving birds.

Avian lice occupy different habitats in the host plumage that the physical environment outside the host body may affect in several ways. Interactions between host plumage and water may be an important source of such effects. Here, we use a comparative approach to examine the effect of a host's diving behavior on the taxonomic richness of its lice. Louse genera richness was significantly lower i...

Diving Birds of North America: Species Accounts — Grebes (Podicipedidae)