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Environmental Sciences

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

1994

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Red Imported Fire Ant Impact On Wildlife: An Overview, Craig R. Allen, Stephen Demarais, R. Scott Lutz Jan 1994

Red Imported Fire Ant Impact On Wildlife: An Overview, Craig R. Allen, Stephen Demarais, R. Scott Lutz

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

We reviewed the past 50 years of literature concerning red imported fire ant impacts on wildlife species. The red imported fire ant has had a negative impact on numerous species of wildlife. However, experimental evidence of population-level impacts is meager. We discuss potential fire ant perturbations and suggest research directions that may settle the long-standing controversy concerning the impact of imported fire ants on native vertebrates and the ecosystems they have invaded.


Interactions Between Larval White Crappie And Gizzard Shad: Quantifying Mechanisms In Small Ponds, Kevin L. Pope, Dennis R. Devries Jan 1994

Interactions Between Larval White Crappie And Gizzard Shad: Quantifying Mechanisms In Small Ponds, Kevin L. Pope, Dennis R. Devries

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

To test potential competitive interactions between larvae of white crappie Pomoxis annularis and of gizzard shad Dorosoma cepedianum. we added adult gizzard shad to eight of twelve 0.1-ha ponds that had been stocked with adult white crappies. Larval white crappies and larval gizzard shad appeared within 1 week of one another and larval white crappie density did not differ between treatments. Zooplankton density declined similarly between treatments, and zooplankton species composition and size did not differ. Although larval white crappie and larval gizzard shad had moderate diet overlap, prey selection by white crappie did not differ between treatments. During …