Plate 8- 4. The complex topography of the Andes Mountains,
a long chain with numerous ridges, valleys, and elevation
gradients, contributes to the high incidence of vicariant
populations and thus stimulates speciation. Photographed
from Ecuador. Photo by John Kricher.
Plate 8- 5. The Bahama Yellowthroat (Geothlypis rostrata) is one
of three endemic bird species of the Bahamas. Photo by John
Kricher.Plate 8- 6. The Cuban Tody (Todus multicolor) is one of 23
species of birds endemic to the island of Cuba. Photo by Carl
Goodrich.
Plate 8- 7. No, it’s not the Cuban Tody again. This is a different
species, the Puerto Rican Tody (Todus mexicanus). It is one of
Puerto Rico’s 18 endemic bird species. Photo by Peter Crosson.Plate 8- 8. The Galápagos Marine Iguana (Amblyrhynchus
cristatus) is one of many endemic species of plants and
animals of the Galápagos archipelago. Marine iguanas show
distinct genetic differences from island to island throughout
the Galápagos. Photo by John Kricher.
Plate 8- 9. The Rufous Hornero (Furnarius rufus) is one of many
species in the Neotropical endemic family Furnariidae. The
family takes its common name, the ovenbirds, from the nest-
building habits of a few of its species, such as the hornero,
which builds a mud nest (upon which this bird is standing)
that resembles an old- fashioned oven. Photo by John Kricher.114 chapter 8 evolutionary cornucopia