The Pine Island Bayou
drainage basin is the very heart of the
Big Thicket. The basin is sometimes referred to as the "Traditional Thicket" or "The Old Bear Hunters' Thicket" and it has a high diversity of flora and fauna. It is a flat, low-lying region of
floodplains and
bottomland, with sluggish
blackwater. The areas is characterized by
swamps, cypress sloughs, hardwood bottomland, palmetto-oak flats, and
baygalls. Some typical flora include water tupelo (
Nyssa aquatica) and bald cypress trees (
Taxodium distichum) draped with Spanish moss (
Tillandsia usneoides); rattan-vine (
Berchemia scandens) and muscadine vine (
Vitis rotundifolia) climbing through forest of black gum (
Nyssa sylvatica), water hickory (
Carya aquatica), sweet gum (
Liquidambar styraciflua), and several species of oak trees such as overcup oak (
Quercus lyrata), laurel oak (
Quercus laurifolia), willow oak (
Quercus phellos), and water oak (
Quercus nigra). Dwarf palmetto (
Sabal minor) may fill the understory in some areas. The black bear (
Ursus americanus) once common in the area were
extirpated by the first few years of the 20th century. A few of the animals found in the area include northern river otter (
Lontra canadensis), bobcat (
Lynx rufus), American beaver (
Castor canadensis), American alligator (
Alligator mississippiensis), alligator snapping turtle (
Macrochelys temminckii), cottonmouth (
Agkistrodon piscivorus), and several species of non-venomous watersnake (
Nerodia). One source stated that Pine Island Bayou had a total of 56 species of fish on record, including alligator gar (
Atractosteus spatula), bowfin (
Amia calva), largemouth bass (
Micropterus salmoides), channel catfish (
Ictalurus punctatus), yellow bullhead (
Ictalurus natalis), warmouth (
Lepomis gulosus), and bluegill sunfish (
Lepomis macrochirus). == Further reading ==