Which risk increases when a seabird's plumage loses water-repellent properties?

💡 Explanation

When plumage loses water-repellent properties, increased water absorption occurs altering buoyancy regulated by feather microstructure because air is displaced, leading to increased overall bird mass and decreased ability to float. Therefore decreased buoyancy results, rather than maneuverability, radiation protection or efficiency, which are functions of flight control, pigmentation, and airfoil shape.

• Which benefit results when anaerobic bacteria experience depleted nitrate levels?
• Which metabolic outcome is favored when a plant's stomata remain closed for extended periods?
• Which outcome occurs when a hibernating mammal's core temperature drops severely, triggering intensive muscle contractions during arousal?
• Which process is disrupted when gill filaments collapse due to osmotic stress in freshwater fish?
• Which evolutionary trade-off arises when insect imaginal discs require increased nutrient allocation?
• Which risk is exacerbated when a bird experiences a puncture to their abdominal air sac during flight?