Subspecies listed by Hoffmeister (1974), Hall (1981), and Williams et al. Mouse Color Variation Over Time in Rock Pocket Mouse Populations This is an answer key to this assignment, very useful because it provi. (It is sometimes grouped in the genus Perognathus. Southcentral Utah and Arizona to western Texas, south to central Sonora and central Chihuahua, Mexico. intermedius, is one of 19 species of pocket mice in the genus Chaetodipus. The rock pocket mouse is not found in Iron County, Utah The rock pocket mouse is found in the southeast corner of Kane County and the southwest corner of San Juan County. The species deposits scat in burrows, so scat is not likely to be easily observed (photo provided depicts the scat of a house mouse, a photo of rock pocket mouse was not provided due to unavailability, but the scat of the two species looks very similar). It is pellet-shaped, skinny, and about the length of a grain of rice (approximately 0.5 cm). Scat ranges in color from dark green to black. Back tracks tend to be closer together than front tracks, as exhibited in Photo 3. Front tracks tend to be smaller than back tracks. The front vestigial thumb is not usually seen in tracks (see Photo 3). It provides an opportunity for students to analyze amino acid data and draw conclusions about the evolution of coat-color phenotypes in the rock pocket mouse. Tracks consist of 5 front toes and 4 back toes. This lesson serves as an extension to the Howard Hughes Medical Institute short film The Making of the Fittest: Natural Selection and Adaptation. Allele and phenotype frequencies in rock pocket mouse populations The Making of the Fittest: Natural Selection and Adaptation Color Variation Over Time in. The species prefers rocky areas with large boulders and are rarely found in silt soil areas. The species is strictly nocturnal, therefore they most likely will not be seen in daylight. Both color variations exhibit a white underside (see Photo 1 and Photo 2). Most mice have sandy, light-colored coat to match the environment where they live. Which of the following is TRUE Read carefully. If an individual has an advantageous trait, then it is more likely to reproduce. It sets up the next activity, a simulation that explores how this pattern might come to be over many generations. Where do rock pocket mice live geographically Southwestern U.S. This video introduces students to the rock pocket mouse, whose coat color tends to match its habitat. Light-colored mice are found in habitats with light colored rocks and sandy soils. What is the genus and species of Rock Pocket mice Chaetodipus intermedius 2. Dark-colored rock pocket mice are found in habitats where there is an abundant amount of black lava rock. The two variations are dark brown-black and light brown (ancestral variation). The species has adapted color variation, in order to better survive in changing habitats. The species grows to be approximately 18 cm long, with the tail equaling 10 cm of the total length. The rock pocket mouse, Chaetodipus intermedius, exhibits weak rump spines (see Photo 1 and Photo 2) and has coarse fur.
0 Comments
Leave a Reply. |