Edgren, R. A. 1949. Variation in the size of eggs of 

 the turtles, Chelydra serpentina (Linne) and 

 Sternotherus odoratus (Latreilla). Nat. Hist. Misc. 

 (Chic). 53:1. 



Ehrenfeld, D. W. 1976. The conservation of non- 

 resources. Am. Sci. 64:648-659. 



Emig. J. W. 1966. Largemouth bass. Pages 332-353 in 

 A. Calhoun, ed. Inland fisheries management. 

 California Dep. Fish. Game. 



Emlen, S. T. 1968. Territoriality in the bullfrog, Rana 

 catesbeiana. Copeia 1968:240-243. 



1976. Lek organization and mating 



strategies in the buUfrog. Behav. Ecol. Sociobiol. 

 1:283-313. 



1977. "Double Clutching" and its possible 



significance in the bullfrog. Copeia 1977(4):749- 

 751. 



Engels, W. L. 1942. Vertebrate fauna of the North 

 Carolina coastal islands. Am. Midi. Natl. 28:273- 

 304. 



Engineer Agency for Resource Inventories. 1973. In- 

 ventory for basic environmental data: South 

 Louisiana, Mermentau River Basin to Chandeleur 

 Sound with emphasis on the Atchafalaya River 

 Basin. U.S. Army Topographic Laboratories, 

 Washington, D.C. 175 pp. 



English, S. M. 1978. Distribution and ecology of great 

 blue heron colonies on the Willamette River, 

 Oregon. Pages 235-244 in A. Sprunt, IV, et al., 

 eds. Wading birds. National Audubon Society, 

 New York. 



Ensminger, A. B. 1954. Earthworm populations on 

 wintering areas of the American woodcock in the 

 vicinity of Baton Rouge, Louisiana. M.S. Thesis. 

 Louisiana State Univ., Baton Rouge. 97 pp. 



1963. Construction of levees for impound- 

 ments in Louisiana marshes. Proc. 11th Annu. 

 Conf Southeast. Assoc. Game Fish Comm. 1 14- 

 119. 



, and L. G. Nichols. 1957. Hurricane damage 



to Rockefeller Refuge. Proc. 11th Annu. Conf. 

 Southeast. Assoc. Game Fish Comm. 52-56. 



Environmental Protection Agency. 1972. Report on 

 evaluations of waste sources in the Calcasieu River 

 Basin, Louisiana. Prepared by Division of Field 

 Investigations-Denver Center, Denver, Colorado, 

 and Region VI Dallas, Texas, for Office of En- 

 forcement. 



Ernst, C. H. 1968. A turtle's territory. Int. Turtle 

 Tortoise Soc. J. 2(6):9, 34. 



and R. Barbour. 1972. Turtles of the United 



States. United Press of Kentucky, Lexington. 

 347 pp. 



Erwin, R. M. 1977. Black skimmer breeding ecology 

 and behavior. Auk 94:709-717. 



Espey-Huston and Associates. 1975. Data report. Hy- 

 drodynamic and biogeochemical sampling in the 

 Sabine-Neches Estuary. Espey-Huston Doc. No. 

 7536. 



1976. A study of the placement of materials 



dredged from Texas ports and waterways. Pre- 

 pared for Texas General Land Office. 2 vols. 

 Austin. 



Evans, D. L. 1976. Relative abundances of deer and 

 woodcock in the three major forest types of the 

 Atchafalaya River Basin, Louisiana. M.S. Thesis. 

 Louisiana State Univ., Baton Rouge. 1 1 1 pp. 



Evans, J. 1970. About nutria and their control. Bur. 

 Sports Fish. Wildl., Denver. Resour. Publ. 86. 65 

 pp. 



Ewert, M. A. 1976. Nests, nesting and aerial basking 

 of Macroclemys under natural conditions, and 

 comparisons with Chelydra (Testudines:Chelydri- 

 dae). Herpetologica 32(2): 150-156. 



Farlow, J. E. 1976. Ecological impact of Dimilin on 

 the aquatic fauna of a Louisiana coastal marsh. 

 Ph.D. Diss. Louisiana State Univ., Baton Rouge. 



Felder, D. L. 1973. An annotated key to crabs and 

 lobsters (Decapoda, Reptantia) from coastal 

 waters of the northwestern Gulf of Mexico. Loui- 

 siana State Univ., Center for Wetland Resour., 

 Baton Rouge. LSU-SG-73-02. 



Fenchel, T. 1970. Studies on the decomposition of 

 organic detritus from the turtle grass, Thalassia 

 testudiniim. Limnol. Oceanogr. 15(1): 14-20. 



Ferguson, D. E., J. P. McKeown, 0. S. Bosarge, and 

 H. F. Landreth. 1968. Sun compass orientation 

 of buUfrogs. Copeia. 1968(2):230-235. 



Fielder, L. L., Jr.. and S. L. Guy. 1975. Agriculture 

 statistics for Louisiana 1917-1974. Louisiana 

 State Univ. DAE Res. Rep. 496. 



Fielder, L. L., Jr., and C. 0. Parker. 1972. Louisiana 

 crop statistics, by Parish, through 1970. Loui- 

 siana State Univ., DAE Res. Rep. 436. 



Fisher, W. L., J. H. McGowen, L. F. Brown, Jr., and 

 C. G. Groat. 1972. Environmental geological atlas 

 of the Texas coastal zone-Galveston-Houston 

 area. Bureau Economic Geology, Univ. Texas, 

 Austin. 



Fisher, W. L., L. F. Brown, Jr., J. H. McGowen, and 

 C. G. Groat. 1973. Environmental geological atlas 

 of the Texas coastal zone-Beaumont-Port Arthur 

 area. Bureau Economic Geology, Univ. Texas, 

 Austin. 



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