{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Special topics 1 - Pikas are very independent mammals...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
A. Compared to most hibernating alpine mammals, Pikas ingest a wide variety of vegetation during summer months and the hay pile during winter months. Pikas need a very specific environment narrowed to talus fields, which are rich in nutrients and food. Talus fields also provide great protection to the pikas. The talus fields have bigger rocks than most fields and allow the pikas to hide from their number one hunter, the weasel. Not only do the pikas use the rocks as a safe haven but they can also use the crevasses between them to stay cool and moist during the grueling summer and winter months.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Pikas are very independent mammals, always protecting their territory. When the winter months approach and the snow begins to gather the pikas stay underground at a comfortable temperature just below freezing. Due to global warming less snow fall has been occurring causing less insulation from the harsh winter temperatures and more pika deaths. Percent Change (0.25M) Percent Change (0.5M) average 0.77 0.573 stdv 0.10187138 0.05558777 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online