SANTA ROSA ISLAND NATURAL HISTORY

Channel Islands Slender Salamander
Santa Rosa Island

SANTA ROSA ISLAND NATURAL HISTORY:

Native terrestrial mammals:

• Island deer mouse (Peromyscus maniculatus streatori)
• Island fox (Urocyon littoralis santarosae)
• Island spotted skunk (Spilogale gracilis amphiala)

Non-native terrestrial mammals: Horses (former)

Native amphibians (2):

• California tree frog (Hyla regilla)
• Channel Islands slender salamander (Batrachoseps pacificus)

Native reptiles (3):

• Western Fence Swift (Sceloporus occidentalis)
• Alligator lizard (Elgaria multicarinatus)
• Gopher snake (Pituophis melanoleucus)

BOTANY: The flora of Santa Rosa Island includes about 403 native taxa, 42 California Islands endemics, and 120 non-native taxa for a total of 523 species.

The five plant taxa which have been found only on Santa Rosa Island are:

• Arctostaphylos confertiflora (Santa Rosa Island manzanita)
• Dudleya blochmaniae subsp. insularis (Santa Rosa Island live-forever)
• Dudleya gnoma (East Point dwarf dudleya)
• Gilia tenuiflora subsp. hoffmannii (Hoffmann’s slender-flowered gilia)
• Pinus torreyana subsp. insularis (Santa Rosa Island Torrey pine)