Laboratory of North American Fish Ecology





David C. Heins
Ph.D, Biology, Tulane University, 1979

Professor and Chair
Department of Ecology & Evolutionary Biology
Boggs 400 Tulane University New Orleans, LA 70118-5698
                                        Phone: (504) 865-5191 Fax: (504) 862-8706
                                        Ecology and Life-History Evolution of Fishes, Host-Parasite Relationships

                                        E-mail Dr. Heins     







Description of Research

Research in my laboratory focuses on the life histories and evolutionary ecologies of fishes in North America. The investigations involve the testing of hypotheses using quantitative data derived from both field and laboratory research and a combination of modeling and statistical methods.

There are three major geographical regions where the field work for most of my projects is being conducted. One is along the northern Gulf Coastal Plain from Texas to Florida. The second geographical area is the southwestern United States, and the third one in which I am conducting research is the south-central region of Alaska including the Matanuska-Susitna Valley and the Kenai Peninsula. Studies along the Gulf Coastal Plain focus on the populations of minnows and darters inhabiting the steams that drain the landscapes there. In addition, I am conducting research on the host-parasite relationships of killifishes from estuaries of the Northern Gulf of Mexico. Research in the southwestern United States focuses on pupfishes. Work in Alaska emphasizes populations of the threespine stickleback, Gasterosteus aculeatus, that live in lakes of the Matanuska-Susitna Valley and the Kenai Peninsula.


Darters and Minnows of the Northern Gulf Coastal Plain

There are two major types of studies involved in the research on darters and minnows. One group of studies includes investigations of their life histories. Biological traits of interest include clutch size, egg size, reproductive effort, size and/or age of maturity, and longevity. We are interested in the patterns of variation in these traits and their causal mechanisms. Emphases of these studies include historical constraints on evolution from ancestry, adaptive responses due to natural selection, and immediate influences of environmental factors on phenotypic plasticity.

The second group of studies involves a series of collaborative projects on the ecomorphology of the blacktail shiner, Cyprinella venusta, with Dr. Craig Hood at Loyola University, New Orleans. The research involves the study of variation in body shape and size within and among populations and seeks to understand how and why differences in these traits occur among the different biological forms. These studies employ the methods of the emerging field of geometric morphometrics which is a sophisticated set of procedures allowing the description of shape and size variation. At present, we are studying shape and size differences in the blacktail shiner that are associated with ontogeny, sexual dimorphism, and stream flow.

Haas, T. C., M. J. Blum, and D. C. Heins. 2010. Morphological responses of a stream fish to water impoundment.  Biology Letters 6: 803-806.


Threespine Stickleback of South-Central Alaska

Research on the threespine stickleback, Gasterosteus aculeatus,s involves collaborative research with John Baker and Susan Foster of Clark University in Worcester, Massachusetts. We are pursuing two main avenues of study. One is the life-history evolution of the threespine stickleback and the other is the host-parasite relationship between the threespine stickleback and the cestode parasite Schistocephalus solidus. Our studies of life-history evolution in stickleback focus on variations in clutch size, egg size, and reproductive effort and seek to elucidate the evolutionary factors that have resulted in the patterns we have observed. Our studies on the host-parasite relationship seek an understanding of how the parasite affects the reproductive traits of stickleback in different populations, and they extend to understanding how differences among host populations affect outcomes for the parasite.

Baker, J. A., D. C. HeinsR. W. King, and S. A. Foster.  2011.  Rapid shifts in multiple life-history traits in a population of threespine stickleback.  Journal of Evolutionary Biology 24: 863-870.

Heins, D. C., J. A. Baker, M. A. Toups, and E. L. Birden. 2010. Evolutionary significance of fecundity reduction in threespine stickleback infected by the diphyllobothriidean cestode Schistocephalus solidus Biological Journal of the Linnean Society 100: 835-846.


Pupfishes of the Southwestern United States

A new area of research in the lab is the study of life history diversity of pupfishes (Cyprinodon) of the southwestern United States. This research is being conducted in collaboration with Alice and Anthony Echelle of Oklahoma State University.

Lee, J.S., D.C. Heins, A.F. Echelle, and A.A. Echelle. 2014. Annual ovarian cycle and other reproductive traits of female red river pupfish (Cyprinodon rubrofluviatilis) in the Red River drainage of Texas. Southwestern Natrualist. 59: 000-000. (In press)

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Publications

Articles and Chapters


Heins, D. C. and J. A. Baker. 2014. Fecundity compensation and fecundity reduction among populations of the three-spined stickleback infected by Schistocephalus solidus in Alaska. Parasitology. 141: 000-000. (In press).

Lee, J.S., D. C. Heins, A.F. Echelle, and A.A. Echelle. 2014. Annual ovarian cycle and other reproductive traits of female red river pupfish (Cyprinodon rubrofluviatilis) in the Red River drainage of Texas. Southwestern Natrualist. 59: 000-000. (In press).

Baker, J.A., L.A. Aucken, D.C. Heins, R.W. King, and S.A. Foster. 2013. The implications of pelvic reduction in threespine stickleback for long-term persistence of populations within the Cook Inlet region of Alaska. Evolutionary Ecology Research. 15: 313-330.

Hughley, M. C.,
D. C. Heins, H. L. Jelks, B. A. Ory and F. Jordan, 2012. Variation in reproductive life history traits between two populations of blackbanded darters (Percina nigrofasciata). Copeia.  2012: 714-721.

Heins, D. C.  2012. Fecundity compensation in the three-spined stickleback Gasterosteus aculeatus infected by the diphyllobothriidean cestode Schistocephalus solidus. Biological Journal of the Linnean Society.  106: 807-819.

Heins, D.C. 2012. A research programme in fish ecology leads to a supermodel: a tribute to Professor Robert J. Wootton. Ecology of Freshwater Fish.  21: 323-324.

Heins, D. C. and J. K. Ecke.  2012. The rise and fall of an epizootic of the diphyllobothriidean cestode Schistocephalus pungitii infecting the ninespine stickleback. Journal of Parasitology 98: 1-5.

Heins, D. C. and J. A. Baker. 2011. Do heavy burdens of Schistocephalus solidus in juvenile threespine stickleback result in a disaster for the parasite? Journal of Parasitology 97: 775-778.

Nishimura, N., D. C. Heins, R. O. Andersen, I. Barber, and W. A. Cresko. 2011. Distinct lineages of Schistocephalus parasites in threespine and ninespine stickleback hosts revealed by DNA sequence analysis. PLoS ONE 6:1-10.

Heins, D. C., J. A. Baker, D, M. Green. 2011. Processes influencing the duration and decline of epizootics in Schistocephalus solidus.   Journal of Parasitology 97: 371-376.

Baker, J. A., D. C. Heins, R. W. King, S. A. Foster. 2011.  Rapid shifts in multiple life history traits in a population of threespine stickleback. Journal of Evolutionary Biology 24: 863-870.

Haas, T. C., M. J. Blum, and D. C. Heins. 2010. Morphological responses of a stream fish to water impoundment.  Biology Letters 6: 803-806.

Heins, D. C., E. L. Birden, and J. A. Baker. 2010. Host mortality and variability in epizootics of Schistocephalus solidus infecting the threespine stickleback, Gasterosteus aculeatus.  Parasitology 137: 16811686.

Heins, D. C., J. A. Baker, M. A. Toups, and E. L. Birden. 2010. Evolutionary significance of fecundity reduction in threespine stickleback infected by the diphyllobothriidean cestode Schistocephalus solidus.  Biological Journal of the Linnean Society 100: 835-846.

Heins, D. C. and N. J. Brown-Peterson. 2010. Influence of the pseudophyllidean cestode Schistocephalus solidus on oocyte development in the threespine stickleback Gasterosteus aculeatus.  Parasitology 137: 1151-1158.

Heins, D. C. and J. A. Baker. 2010. Castration of female ninespine stickleback by the pseudophyllidean cestode Schistocephalus pungitii: evolutionary significance and underlying mechanism.  Journal of Parasitology 96: 206208.

Brown-Peterson, N. and D. C. Heins. 2009. Interspawning interval of wild female threespine stickleback Gasterosteus aculeatus in Alaska. Journal of Fish Biology 74: 2299-2312.

Heins, D.C. and J. A. Baker. 2008. The stickleback-Schistocephalus host-parasite system as a model for understanding the effect of a macroparasite on host reproduction. Behaviour 145: 625-645 .

Baker, J. A., D. C. Heins, S. A. Foster and R.W. King. 2008. An overview of life-history variation in female threespine stickleback. Behaviour 145: 579-602.

Schultz, E., M. Topper, and D. C. Heins. 2006. Decreased reproductive investment of female threespine stickleback Gasterosteus aculeatus infected with the cestode Schistocephalus solidus: parasite adaptation, host adaptation, or side effect? Oikos 114: 303-310.

Heins, D. C., J. A. Baker, G. De Silva, and E. L. Birden. 2005. Clutch characteristics of two populations of ninespine stickleback from south-central Alaska. Journal of Fish Biology 67: 873-878.

Baker, J. A., W. A. Cresko, S. A. Foster, and D. C. Heins. 2005. Life history differentiation of benthic and limnetic ecotypes in a polytypic population of threespine stickleback (Gasterosteus aculeatus). Evolutionary Ecology Research 7: 121-131.

Heins, D. C., B. Ulinski, J. Johnson, and J. A. Baker. 2004. Effect of the cestode macroparasite Schistocephalus pungitii on the reproductive success of ninespine stickleback Pungitius pungitius. Canadian Journal of Zoology 82: 1731-1737.

Heins, D. C., J. A. Baker, and J. M. Guill. 2004. Seasonal and interannual components of intrapopulational variation in clutch size and egg size of a darter. Ecology of Freshwater Fish 13: 258-265.

Bagamian, K. H., D. C. Heins. and J. A. Baker. 2004. Body condition and reproduction capacity of threespine stickleback (Gasterosteus aculeatus) infected with the cestode macroparastie Schistocephalus solidus. Journal of Fish Biology 64: 1568-1576.

Heins, D. C., J. M. Johnson and J. A. Baker. 2003. Reproductive ecology of the ninespine stickleback Pungitius pungitius (Linnaeus) from South-Central Alaska. Journal of Fish Biology 63: 1131-1143.

Joachim, R. D., J. M. Guill, and D. C. Heins. 2003. Female reproductive life-history traits of the rock darter, Etheostoma rupestre, from Flat Creek Alabama. American Midland Naturalist. 150: 268-274.

Guill, J. M., D. C. Heins. and C. S. Hood. 2003. Phylogeny and body shape variation in darters. Systematic Biology 52: 488-500.

Guill, J. M., C. S. Hood and D. C. Heins. 2003 Body shape variation within and among three species of darters (Perciformes: Percidae). Ecology of Freshwater Fish 12: 134-140.

Heins, D. C. and J. A. Baker. 2003. Reduction of egg size in natural populations of threespine stickleback infected with a cestode macroparasite. Journal of Parasitology 89: 1-6.

Heins, D. C., J. A. Baker, and H. C. Martin. 2002. The "crowding effect" in the cestode Schistocephalus solidus: density-dependent effects on plerocercoid size and infectivity. Journal of Parasitology 88: 302-307.

Machado, M. D., D. C. Heins., and H. L. Bart, Jr. 2002. Microgeographical variation in ovum size of the blacktail shiner, Cyprinella venusta Girard, in relation to streamflow. Ecology of Freshwater Fish 11: 11-19.

Heins, D. C. 2001. Variation in clutch size and ovum size of the snubnose darter, Etheostoma simoterum (Cope), from two populations in Tennessee. American Midland Naturalist 145: 74-79.

Hood, C. S. and D. C. Heins. 2000. Ontogeny and allometry of body shape in the blacktail shiner, Cyprinella venusta. Copeia 2000: 270-275.

Guill, J. M. and D. C. Heins. 2000. Interannual variation in clutch and egg size of the banded darter, Etheostoma zonale. Copeia. 2000: 230-233.

Heins, D. C. , S. S. Singer and J. A. Baker. 1999. Virulence of the cestode Schistocephalus solidus and reproduction in infected threespine stickleback, Gasterosteus aculeatus. Canadian Journal of Zoology 77: 1967-1974.

Heins, D. C. and J. A. Baker. 1999. Evaluation of ovum storage techniques for reproductive studies of fishes. Ecology of Freshwater Fish 8: 65-69.

Baker, J. A., S. A. Foster, D. C. Heins., M. A. Bell and R. W. King. 1998. Variation in female life-history traits among Alaskan populations of the threespine stickleback, Gasterosteus aculeatus, L. (Pisces: Gasterosteidae). Biological Journal of the Linnean Society. 63:141-159.

Heins, D. C., J. A. Baker and D. J. Tylicki. 1996. Reproductive season, clutch size and egg size of the rainbow darter, Etheostoma caeruleum, from the Homochitto River, Mississippi, with an evaluation of data from the literature. Copeia 1996: 1005-1010.

Guill, J. M. and D. C. Heins. 1996. Clutch size and egg size variation in the banded darter, Etheostoma zonale, from three sites in Arkansas. Environmental Biology of Fishes 46: 409-413.

Heins, D. C., J. A. Baker, R. W. King, and K. Lahti. 1995. Evaluation of ovum fixation and storage in three-spined stickleback. Journal of Fish Biology 47: 923-925.

Baker, J. A., and D. C. Heins. 1994. Reproductive life history of the North American madtom catfish, Noturus hildebrandi (Bailey & Taylor 1950), with a review of data for the genus. Ecology of Freshwater Fish 3: 167-175.

Baker, J. A., and D. C. Heins. 1994. Effect of drying temperature on weight estimates for oocytes and eggs of the brighteye darter, Etheostoma lynceum. Copeia 1994: 821-823.

Heins, D. C., and J. A. Baker. 1993. Clutch production in the darter Etheostoma lynceum Hay and its implications for life-history study. Journal of Fish Biology 42: 819-829.

Heins, D. C., and J. A. Baker. 1993. Reproductive biology of the brighteye darter, Etheostoma lynceum, from the Homochitto River, Mississippi. Ichthyological Exploration of Freshwaters 4: 11-20.

Heins, D. C., and M. D. Machado. 1993. Spawning season, clutch characteristics, sexual dimorphism and sex ratio in the redfin darter Etheostoma whipplei. American Midland Naturalist 129: 161-171.

Ross, S. T., D. C. Heins., and J. W. Burris. 1992. Fishes of Okatoma Creek, a free-flowing stream in south-central Mississippi. Proceedings of the Southeastern Fishes Council 26: 2-10.

Heins, D. C., and J. A. Baker. 1992. Historical and recent influences on reproduction in North American stream fishes, p. 573-599. In: R. L. Mayden (ed.). Systematics, Historical Ecology, and North American Freshwater Fishes. Stanford University Press, Stanford, California.

Heins, D. C., J. A. Baker, and W. P. Dunlap. 1992. Yolk loading in oocytes of darters and its consequences for life-history study. Copeia 1992: 404-412.

Heins, D. C. 1991. Variation in reproductive investment among populations of the longnose shiner, Notropis longirostris, from contrasting environments. Copeia 1991: 736-744.

Parrish, J. D., D. C. Heins., and J. A. Baker. 1991 Reproductive season, clutch parameters and oocyte size of the Johnny darter Etheostoma nigrum from southwestern Mississippi. American Midland Naturalist 125: 180-186.

Heins, D. C. 1990. Field evidence for multiple clutches in the longnose shiner. Copeia 1990: 579-582.

Heins, D. C. 1990. Mating behaviors of the blacktail shiner, Cyprinella venusta, from southeastern Mississippi. Proceedings of the Southeastern Fishes Council 21: 5-7.

Heins, D. C., and J. A. Baker. 1989. Growth, population structure, and reproduction of the percid fish Percina vigil. Copeia 1989: 727-736.

Heins, D. C., and F. G. Rabito, Jr. 1988. Reproductive traits in populations of the weed shiner, Notropis texanus, from the Gulf Coastal Plain. Southwestern Naturalist 33: 147-156.

Heins, D. C., and J. A. Baker. 1988. Egg sizes in fishes: Do mature oocytes accurately demonstrate size statistics of ripe ova? Copeia 1988: 238-240.

Heins, D. C., and J. A. Baker. 1987. Analysis of factors associated with intraspecific variation in propagule size of a stream-dwelling fish, p. 223-231. In: W. J. Matthews and D. C. Heins (eds.). Community and Evolutionary Ecology of North American Stream Fishes. Univ. Oklahoma Press, Norman, Oklahoma.

Heins, D. C., and W. J. Matthews. 1987. Historical perspectives on the study of the community and evolutionary ecology of North American stream fishes, p. 3-7. In: W. J. Matthews and D. C. Heins (eds.). Community and Evolutionary Ecology of North American Stream Fishes. Univ. Oklahoma Press, Norman, Oklahoma.

Heins, D. C., and D. R. Dorsett. 1986. Reproductive traits of the blacktail shiner, Notropis venustus (Girard), in southeastern Mississippi. Southwestern Naturalist 31: 185-189.

Heins, D. C., and F. G. Rabito, Jr. 1986. Spawning performance in North American minnows: direct evidence of the occurrence of multiple clutches in the genus Notropis. Journal of Fish Biology 28: 343-357.

Rabito, F. G., Jr., and D. C. Heins. 1985. Spawning behaviour and sexual dimorphism in the North American cyprinid fish Notropis leedsi, the bannerfin shiner. Journal of Natural History 19: 1155-1163.

Heins, D. C. 1985. Life history traits of the Florida sand darter Ammocrypta bifascia, and comparisons with the naked sand darter Ammocrypta beani. American Midland Naturalist 113: 209-216.

Heins, D. C., and J. R. Rooks. 1984. Life history of the naked sand darter, Ammocrypta beani, in southeastern Mississippi, p. 61-69. In: D. G. Lindquist and L. M. Page (eds.). Environmental Biology of Darters. Dev. Env. Biol. Fish. 4, Dr. W. Junk Publishers, The Hague, The Netherlands.

Matthews, M. M., and D. C. Heins. 1984. Life history of the redfin shiner, Notropis umbratilis (Pisces: Cyprinidae), in Mississippi. Copeia 1984: 385-390.

Heins, D. C. and D. Davis. 1984. The reproductive season of the weed shiner, Notropis texanus (Pisces: Cyprinidae), in southeastern Mississippi. Southwestern Naturalist 29: 133-135.

Heins, D. C. 1981. Life history pattern of Notropis sabinae (Pisces: Cyprinidae) in the lower Sabine River drainage of Louisiana and Texas. Tulane Studies in Zoology Botany 22: 67-84.

Heins, D. C., G. E. Gunning, and J. D. Williams. 1980. Reproduction and population structure of an undescribed species of Notropis (Pisces: Cyprinidae) from the Mobile Bay drainage, Alabama. Copeia 1980: 822-830.

Bresnick, G. I., and D. C. Heins. 1977. The age and growth of the weed shiner, Notropis texanus (Girard). American Midland Naturalist 98: 491-495.

Heins, D. C., and G. H. Clemmer. 1976. The reproductive biology, age and growth of the North American cyprinid, Notropis longirostris (Hay). Journal of Fish Biology 8: 365-379.

Heins, D. C., and G. H. Clemmer. 1975. Ecology, foods and feeding of the longnose shiner, Notropis longirostris (Hay), in Mississippi. American Midland Naturalist 94: 284-295.

Heins, D. C., and G. I. Bresnick. 1975. The ecological life history of the cherryfin shiner, Notropis roseipinnis. Transactions of the American Fisheries Society 104: 516-523.


Book

Matthews, W. J., and D. C. Heins (eds.). 1987. Community and Evolutionary Ecology of North American Stream Fishes. Univ. Oklahoma Press, Norman, Oklahoma. 310 p.


Laboratory of North American Fish Ecology Publications

Student Publications - Undergraduate

Lee, J.S., D.C. Heins, A.F. Echelle, and A.A. Echelle. 2014. Annual ovarian cycle and other reproductive traits of female red river pupfish (Cyprinodon rubrofluviatilis) in the Red River drainage of Texas. Southwestern Natrualist. 59: 000-000. (In press).

Hughley, M. C., Heins, D. C., Jelks, H. L., Ory, B. A., Jordan, F. 2012. Variation in reproductive life history traits between two populations of blackbanded darters (Percina nigrofasciata). Copeia.  2012: 714-721.

Heins, D. C. and J. K. Ecke.  2012. The rise and fall of an epizootic of the diphyllobothriidean cestode Schistocephalus pungitii infecting the ninespine stickleback. Journal of Parasitology 98: 1-5.

Heins, D. C.J. A. Baker, and D. M. Green.  2011.  Processes influencing the duration and decline of epizootics in Schistocephalus solidus Journal of Parasitology: 97:371-376.

Heins, D. C., J. A. Baker, M. A. Toups, and E. L. Birden. 2010. Evolutionary significance of fecundity reduction in threespine stickleback infected by the diphyllobothriidean cestode Schistocephalus solidus.  Biological Journal of the Linnean Society 100: 835-846.

Heins, D. C., J. A. Baker, G. De Silva, and E. L. Birden. 2005. Clutch characteristics of two populations of ninespine stickleback from south-central Alaska. Journal of Fish Biology 67: 873-878.

Heins, D. C., B. Ulinski, J. Johnson, and J. A. Baker. 2004. Effect of the cestode macroparasite Schistocephalus pungitii on the reproductive success of ninespine stickleback Pungitius pungitius. Canadian Journal of Zoology 82: 1731-1737.

Bagamian, K. H., D. C. Heins and J. A. Baker. 2004. Body condition and reproductive capacity of threespine stickleback (Gasterosteus aculeatus) infected with the cestode macroparasite Schistocephalus solidus. Journal of Fish Biology 64: 1568-1576.

Heins, D. C., J. M. Johnson and J. A Baker. 2003. Reproductive ecology of the ninespine stickleback Pungitius pungitus (Linnaeus) from South-Central Alaska. Journal of Fish Biology 63: 1131-1143.

Joachim, R. D., J. M. Guill, and D. C. Heins, 2003. Female reproductive life-history traits of the rock darter, Etheostoma rupestre, from Flat Creek Alabama. American Midland Naturalist. 150: 268-274.

Heins, D. C., J. A. Baker, and H. C. Martin. 2002. The "crowding effect" in the cestode Schistocephalus solidus: density-dependent effects on plerocercoid size and infectivity. Journal of Parasitology 88: 302-307.

Heins, D. C., S. S. Singer and J. A. Baker. 2000. Virulence of the cestode Schistocephalus solidus and reproduction in infected threespine stickleback, Gasterosteus aculeatus. Canadian Journal of Zoology 77: 1967-1974.

Heins, D. C., J. A. Baker and D. J. Tylicki. 1996. Reproductive season, clutch size and egg size of the rainbow darter, Etheostoma caeruleum, from the Homochitto River, Mississippi, with an evaluation of data from the literature. Copeia 1996: 1005-1010.

Heins, D. C., J. A. Baker, R. W. King, and K. Lahti. 1995. Evaluation of ovum fixation and storage in three-spined stickleback. Journal of Fish Biology 47: 923-925.

Heins, D. C., and M. D. Machado. 1993. Spawning season, clutch characteristics, sexual dimorphism and sex ratio in the redfin darter Etheostoma whipplei. American Midland Naturalist 129: 161-171.

Parrish, J. D., D. C. Heins, and J. A. Baker. 1991 Reproductive season, clutch parameters and oocyte size of the Johnny darter Etheostoma nigrum from southwestern Mississippi. American Midland Naturalist 125: 180-186.

Heins, D. C., and F. G. Rabito, Jr. 1988. Reproductive traits in populations of the weed shiner, Notropis texanus, from the Gulf Coastal Plain. Southwestern Naturalist 33: 147-156.

Heins, D. C., and F. G. Rabito, Jr. 1986. Spawning performance in North American minnows: direct evidence of the occurrence of multiple clutches in the genus Notropis. Journal of Fish Biology 28: 343-357.

Rabito, F. G., Jr., and D. C. Heins. 1985. Spawning behaviour and sexual dimorphism in the North American cyprinid fish Notropis leedsi, the bannerfin shiner. Journal of Natural History 19: 1155-1163.


Student Publications - Graduate

Heins, D. C., E. L. Birden, and J. A. Baker. 2010. Host mortality and variability in epizootics of Schistocephalus solidus infecting the threespine stickleback, Gasterosteus aculeatus.  Parasitology 137: 16811686.

Haas, T. C., M. J. Blum, and D. C. Heins. 2010. Morphological responses of a stream fish to water impoundment.  Biology Letters 6: 803-806.

Heins, D. C., J. A. Baker, and J. M. Guill. 2004. Seasonal and interannual components of intrapopulational variation in clutch size and egg size of a darter. Ecology of Freshwater Fish 13:258-265.

Joachim, R. D., J. M. Guill, and D. C. Heins, 2003. Female reproductive life-history traits of the rock darter, Etheostoma rupestre, from Flat Creek Alabama. American Midland Naturalist. 150: 268-274.

Guill, J. M., D. C. Heins and C. S. Hood. 2003. Phylogeny and body shape variation in darters. Systematic Biology 52: 488-500.

Guill, J. M., C. S. Hood and D. C. Heins. 2003 Body shape variation within and among three species of darters (Perciformes: Percidae). Ecology of Freshwater Fish 12: 134-140.

Machado, M. D., D. C. Heins, and H. L. Bart, Jr. 2002. Microgeographic variation in ovum size of the blacktail shiner, Cyprinella venusta Girard, in relation to streamflow. Ecology of Freshwater Fish 11: 11-19.

Guill, J. M. and D. C. Heins. 2000. Interannual variation in clutch and egg size of the banded darter, Etheostoma zonale. Copeia. 2000: 270-275.

Guill, J. M. and D. C. Heins. 1996. Clutch size and egg size variation in the banded darter, Etheostoma zonale, from three sites in Arkansas. Environmental Biology of Fishes 46: 409-413.



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