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Northern map turtle at Shedd Aquarium in Chicago, Illinois. Map turtles are considered habitat specialists and may be replaced by a more tolerant species when their habitat is altered. [11] The effects of human interference by way boating and recreation on shorelines are likely impeding the map turtle from re-establishing itself in natural ...
Graptemys is a genus of freshwater turtles containing 14 species, commonly known as map turtles. [5] Graptemys are small to medium-sized turtles that are significantly sexually dimorphic, with females in some species attaining as much as twice the length and ten times the mass as males.
The Alabama map turtle (Graptemys pulchra) is a species of emydid turtle native to the southern United States. Differentiation from other turtle species includes a black stripe running down the center of its back with knobs extruding from it, but these projections wear down with age. T.H. Bean and L. Kumlen first collected the Alabama map turtle in July 1876 from a lake near Montgomery, Alabama.
The Ouachita map turtle (Graptemys ouachitensis) is a species of turtle belonging to the family Emydidae. Subspecies. Subspecies include: [2]
The black-knobbed map turtle (Graptemys nigrinoda), formerly known as the black-knobbed sawback, is a small to medium-sized aquatic turtle with light gray skin. [5] Some of the most distinguishing characteristics of the black-knobbed map turtle, and the Graptemys genus, are the protruding "spikes" on the turtle's carapace.
The Pearl River map turtle (Graptemys pearlensis) is a species of emydid turtle native to the southern United States.According to a study done in January 2017, the species G. pearlensis was significantly less abundant in the Pearl River region as compared to G. oculifera and exhibited a smaller number of reproductively mature females.
Cagle's map turtle has intricate patterns on the carapace and plastron, as well as serrated edges on the posterior of the carapace, as is typical of all map turtles.It is smaller than most map turtles, and very sexually dimorphic, with males reaching only 4 in (10 cm) straight carapace length, while females can exceed 7 in (18 cm) in straight carapace length.
The Texas map turtle (Graptemys versa) is a species of emydid turtle endemic to Texas. Geographic range. Endemic to Texas within the Colorado River (Texas) drainage