Pre-lab Gopher - Abandoned caved in or is greatly...

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

View Full Document Right Arrow Icon
Principles of Ecology Lab 2: Samantha Eisenberg Pre – lab exercise: Abiotic Factors II - Responses to Controlled Burns in Gopher Tortoises 1. Describe the relationship between fire interval and fuel load for each category of fire. Surface fires : fire interval is small, thus fuel load is small as well Crown fires : fire interval is large, thus fuel load is large causing fired to spread to canopy Ground fires : fire interval is large, thus fuel load is large enabling fire to remain on ground long enough to damage what is below the surface 2. Describe the three classifications of tortoise burrows that we will be using for data collection. Active : tracks that are scraped clean of debris by plastron Inactive : no tracks and scattered debris that doesn’t obstruct the entrance; hasn’t been in use for about 2 weeks
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Abandoned : caved in or is greatly obstructed 3. Why is the gopher tortoise considered a keystone species? It has had a disproportionately large effect on other species (362 species) 4. Formulate hypotheses about where you will find the highest densities of 1) total number of tortoises, 2) adult tortoises, 3) juvenile tortoises, 4) abandoned burrows.-The highest density of total tortoises will be found in areas that are burned every 2-5 years.-The highest density of adult tortoises will be found in areas that are burned every year.-The highest density of juvenile tortoises will be found in areas that are burned every two years.-The highest density of abandoned burrows will be found in areas that are burned either every seven years or never....
View Full Document

Ask a homework question - tutors are online