Question

The American white pelican migrates from North America to Central America in the winter months. Give three reasons why these birds follow an annual migration pattern.

a) Avoiding predators, seeking warmer temperatures, and finding more food sources.
b) Mating rituals, escaping harsh weather conditions, and locating nesting sites.
c) Navigation practice, establishing territory, and accessing healthcare.
d) Following a genetic instinct, optimizing breeding conditions, and enhancing social interactions.

Answer 1

The American white pelican migrates annually to seek warmer climates for temperature regulation, to find sufficient food sources, and to locate appropriate breeding sites, reflecting an adaptation to varying resource availability.

Correct option is a) Brittle bones and susceptibility to fractures

Step-by-step explanation:

The American white pelican engages in an annual migration pattern primarily for the following reasons: seeking warmer climates to maintain a constant body temperature, finding sufficient food sources unavailable in their native habitats during the winter months, and locating appropriate breeding sites that offer protection and nesting opportunities which are essential for the perpetuation of their species. Animals like monarch butterflies and whales also undertake extensive migrations to ensure survival and reproductive success. Migration is an evolved, adaptive response to changes in resource availability and is a widespread phenomenon observed across various wildlife groups.

As such, the correct reasons why these birds follow an annual migration pattern are not merely for navigating or establishing territory, as indicated by some other choices, but are driven by environmental adaptations that involve a complex interplay of factors, including temperature regulation, food accessibility, and reproductive needs.