Mission Areas

Ecosystems

Mission Areas L2 Landing Page Tabs

Filter Total Items: 4,616
Year Published: 2006

Improving the precision of otolith-based age estimates for Greenland halibut (Reinhardtius hippoglossoides) with preparation methods adapted for fragile sagittae

[No abstract available]

Gregg, J.L.; Anderl, D.M.; Kimura, D.K.
Improving the precision of otolith-based age estimates for Greenland halibut (Reinhardtius hippoglossoides) with preparation methods adapted for fragile sagittae; 2006; Article; Journal; Fishery Bulletin; Gregg, J. L.; Anderl, D. M.; Kimura, D. K.

Year Published: 2006

Influence of alternative silviculture on small mammals

HIGHLIGHT: A variety of harvest methods promote diversity within forests while still generating income. For example, recent studies have shown that when dead wood is left on the forest floor during harvest, biodiversity increases. A new Cooperative Forest Ecosystem Research (CFER) program fact sheet summarizes how small mammals respond to dead...

Waldien, David L.; Hayes, John P.
Influence of alternative silviculture on small mammals; 2006; FS; 2006-3100; Waldien, David L.; Hayes, John P.

Year Published: 2006

Influence of habitat heterogeneity on distribution, occupancy patterns, and productivity of breeding peregrine falcons in central West Greenland

We used occupancy and productivity data collected at 67 cliffs used for nesting from 1972 to 1999 to assess patterns of distribution and nest-site selection in an increasing population of Peregrine Falcons (Falco peregrinus) in central West Greenland. Peregrine Falcons breeding at traditionally occupied cliffs used for nesting had significantly...

Wightman, C.S.; Fuller, M.R.
Influence of habitat heterogeneity on distribution, occupancy patterns, and productivity of breeding peregrine falcons in central West Greenland; 2006; Article; Journal; Condor; Wightman, C. S.; Fuller, M. R.

Year Published: 2006

Influence of habitat heterogeneity on distribution, occupancy patterns, and productivity of breeding peregrine falcons in central west Greenland

We used occupancy and productivity data collected at 67 cliffs used for nesting from 1972 to 1999 to assess patterns of distribution and nest-site selection in an increasing population of Peregrine Falcons (Falco peregrinus) in central West Greenland. Peregrine Falcons breeding at traditionally occupied cliffs used for nesting had significantly...

Wightman, C.; Fuller, Mark R.
Influence of habitat heterogeneity on distribution, occupancy patterns, and productivity of breeding peregrine falcons in central west Greenland; 2006; Article; Journal; The Condor; Wightman, C.; Fuller, Mark R.

Year Published: 2006

Interaction Assessment: A modeling tool for predicting population dynamics from field data

Interaction Assessment (INTASS) is a field and analytic methodology for constructing population dynamics models. Because data collected in generating a model for one species comprise much of the information needed for other species, a small increase in effort can result in simultaneous expressions for the dynamics of multiple species. These...

Emlen, John M.; Duda, Jeffrey J.; Kirchhoff, Matt D.; Freeman, D. Carl

Year Published: 2006

Interactions among two strains of Tubifex tubifex (Oligochaeta: Tubificidae) and Myxobolus cerebralis (Myxozoa)

Host-parasite interactions influence host population growth, host evolution and parasite success. We examined the interactions among Myxobolus cerebralis, the parasite that causes salmonid whirling disease, and resistant and susceptible strains of the oligochaete host Tubifex tubifex. Strains of T. tubifex with diverse genotypes often coexist in...

Steinbach, Elwell L.C.; Kerans, B.L.; Rasmussen, C.; Winton, J.R.
Interactions among two strains of Tubifex tubifex (Oligochaeta: Tubificidae) and Myxobolus cerebralis (Myxozoa); 2006; Article; Journal; Diseases of Aquatic Organisms; Steinbach, Elwell, L. C.; Kerans, B. L.; Rasmussen, C.; Winton, J. R.

Year Published: 2006

Interactive effects of substrate, hydroperiod, and nutrients on seedling growth of Salix nigra and Taxodium distichum

The large river swamps of Louisiana have complex topography and hydrology, characterized by black willow (Salix nigra) dominance on accreting alluvial sediments and vast areas of baldcypress (Taxodium distichum) deepwater swamps with highly organic substrates. Seedling survival of these two wetland tree species is influenced by their growth rate...

Day, Richard H.; Doyle, T.W.; Draugelis-Dale, R. O.
Interactive effects of substrate, hydroperiod, and nutrients on seedling growth of Salix nigra and Taxodium distichum; 2006; Article; Journal; Environmental and Experimental Botany; Day, R. H.; Doyle, T. W.; Draugelis-Dale, R. O.

Year Published: 2006

Introduction of translation stop codons into the viral glycoprotein gene in a fish DNA vaccine eliminates induction of protective immunity

A highly efficacious DNA vaccine against a fish rhabdovirus, infectious hematopoietic necrosis virus (IHNV), was mutated to introduce two stop codons to prevent glycoprotein translation while maintaining the plasmid DNA integrity and RNA transcription ability. The mutated plasmid vaccine, denoted pIHNw-G2stop, when injected intramuscularly into...

Garver, K.A.; Conway, C.M.; Kurath, G.
Introduction of translation stop codons into the viral glycoprotein gene in a fish DNA vaccine eliminates induction of protective immunity; 2006; Article; Journal; Marine Biotechnology; Garver, K. A.; Conway, C. M.; Kurath, G.

Year Published: 2006

Isolation of viral haemorrhagic septicaemia virus from muskellunge, Esox masquinongy (Mitchill), in Lake St Clair, Michigan, USA reveals a new sublineage of the North American genotype

Viral haemorrhagic septicaemia virus (VHSV) was isolated from muskellunge, Esox masquinongy (Mitchill), caught from the NW portion of Lake St Clair, Michigan, USA in 2003. Affected fish exhibited congestion of internal organs; the inner wall of the swim bladder was thickened and contained numerous budding, fluid-filled vesicles. A virus was...

Elsayed, E.; Faisal, M.; Thomas, M.; Whelan, G.; Batts, W.; Winton, J.
Isolation of viral haemorrhagic septicaemia virus from muskellunge, Esox masquinongy (Mitchill), in Lake St Clair, Michigan, USA reveals a new sublineage of the North American genotype; 2006; Article; Journal; Journal of Fish Diseases; Elsayed, E.; Faisal, M.; Thomas, M.; Whelan, G.; Batts, W.; Winton, J.

Year Published: 2006

Juvenile salmonid use of freshwater emergent wetlands in the floodplain and its implications for conservation management

A recent trend of enhancing freshwater emergent wetlands for waterfowl and other wildlife has raised concern about the effects of such measures on juvenile salmonids. We undertook this study to quantify the degree and extent of juvenile Pacific salmon Oncorhynchus spp. utilization of enhanced and unenhanced emergent wetlands within the floodplain...

Henning, Julie A.; Gresswell, Robert E.; Fleming, Ian A.
Juvenile salmonid use of freshwater emergent wetlands in the floodplain and its implications for conservation management; 2006; Article; Journal; North American Journal of Fisheries Management; Henning, J. A.; Gresswell, R. E.; Fleming, I. A.

Year Published: 2006

Landscape attributes and life history variability shape genetic structure of trout populations in a stream network

Spatial and temporal landscape patterns have long been recognized to influence biological processes, but these processes often operate at scales that are difficult to study by conventional means. Inferences from genetic markers can overcome some of these limitations. We used a landscape genetics approach to test hypotheses concerning landscape...

Neville, H.M.; Dunham, J.B.; Peacock, M.M.
Landscape attributes and life history variability shape genetic structure of trout populations in a stream network; 2006; Article; Journal; Landscape Ecology; Neville, H. M.; Dunham, J. B.; Peacock, M. M.