Patrick L Hudson, PhD
Patrick Hudson is a Scientist Emeritus based in Ann Arbor, MI.
Science and Products
Publications by this scientist
Filter Total Items: 40
Northwestward range extension for Diacyclops harryi (Crustacea: Copepoda) Northwestward range extension for Diacyclops harryi (Crustacea: Copepoda)
A recent find of the groundwater-inhabiting copepod crustacean Diacyclops harryi extended the known range of this species far northwestward, to include northern Ohio and the drainage basin of the Laurentian Great Lakes. The species was previously collected in drainages of the Atlantic Slope from New York to North Carolina. Ostracodes tentatively identified as ?Nannocandona n. sp., and...
Authors
Janet W. Reid, Patrick L. Hudson, Charles A. Bowen
New Midwestern state records of aquatic Hemiptera (Corixidae: Notonectidae) New Midwestern state records of aquatic Hemiptera (Corixidae: Notonectidae)
Recent aquatic Hemiptera collections have yielded 15 new state records distributed among four midwestern States. These records include two species of water boatmen (Palmacorixa gillettei and Sigara mathesoni) new for Indiana, four water boatmen species (Cenocorixa utahensis, Corisella inscripta, Hesperocorixa laevigata, S. decorata), including one genus (Cenocorixa) new for Michigan...
Authors
Stephen W. Chordas, Eric G. Chapman, Patrick L. Hudson, Margret A. Chriscinske, Richard L. Stewart
First record of Neoergasilus japonicus (Poecilostomatoida: Ergasilidae), a parasitic copepod new to the Laurentian Great Lakes First record of Neoergasilus japonicus (Poecilostomatoida: Ergasilidae), a parasitic copepod new to the Laurentian Great Lakes
The parasitic copepod Neoergasilus japonicus, native to eastern Asia, was first collected from 4 species of fish (fathead minnow, Pimephales promelas; largemouth bass, Micropterus salmoides; pumpkinseed sunfish, Lepomis gibbosus; and yellow perch, Perca flavescens) in July 1994 in Saginaw Bay, Lake Huron, Michigan. Further sampling in the bay in 2001 revealed infections on 7 additional...
Authors
Patrick L. Hudson, Charles A. Bowen
Caddisflies (Insecta: Trichoptera) of fringing wetlands of the Laurentian Great Lakes Caddisflies (Insecta: Trichoptera) of fringing wetlands of the Laurentian Great Lakes
Fringing wetlands of the Laurentian Great Lakes are subject to natural processes, such as water-level fluctuation and wave-induced erosion, and to human alterations. In order to evaluate the quality of these wetlands over space and time, biological communities are often examined. This paper reports on the use of adult caddisflies to evaluate fringing wetlands of Lake Huron, Lake Michigan...
Authors
Brian J. Armitage, Patrick L. Hudson, Douglas A. Wilcox
A list of Michigan Corixidae (Hemiptera) with four new state records from the Great Lakes of Michigan A list of Michigan Corixidae (Hemiptera) with four new state records from the Great Lakes of Michigan
Corisella tarsalis, Sigara lineata, Trichocorixa borealis, and Trichocorixa kanza were recently identified from Michigan and constitute new state records. These four species were collected from two of the Great Lakes or their connecting rivers and increase the number of corixids for Michigan to 47 species. We newly report the genus Corisella for Michigan. Although most abundant in the...
Authors
Stephen W. Chordas, Patrick L. Hudson
Predation on lake trout eggs and fry: A modeling approach Predation on lake trout eggs and fry: A modeling approach
A general model was developed to examine the effects of multiple predators on survival of eggs and fry of lake trout, Salvelinus namaycush, associated with spawning reefs. Three kinds of predation were simulated: epibenthic egg predators consuming eggs on the substrate surface during spawning, interstitial egg predators that can move in rocky substrate and consume incubating eggs, and...
Authors
Jacqueline F. Savino, Patrick L. Hudson, Mary C. Fabrizio, Charles A. Bowen
Science and Products
Publications by this scientist
Filter Total Items: 40
Northwestward range extension for Diacyclops harryi (Crustacea: Copepoda) Northwestward range extension for Diacyclops harryi (Crustacea: Copepoda)
A recent find of the groundwater-inhabiting copepod crustacean Diacyclops harryi extended the known range of this species far northwestward, to include northern Ohio and the drainage basin of the Laurentian Great Lakes. The species was previously collected in drainages of the Atlantic Slope from New York to North Carolina. Ostracodes tentatively identified as ?Nannocandona n. sp., and...
Authors
Janet W. Reid, Patrick L. Hudson, Charles A. Bowen
New Midwestern state records of aquatic Hemiptera (Corixidae: Notonectidae) New Midwestern state records of aquatic Hemiptera (Corixidae: Notonectidae)
Recent aquatic Hemiptera collections have yielded 15 new state records distributed among four midwestern States. These records include two species of water boatmen (Palmacorixa gillettei and Sigara mathesoni) new for Indiana, four water boatmen species (Cenocorixa utahensis, Corisella inscripta, Hesperocorixa laevigata, S. decorata), including one genus (Cenocorixa) new for Michigan...
Authors
Stephen W. Chordas, Eric G. Chapman, Patrick L. Hudson, Margret A. Chriscinske, Richard L. Stewart
First record of Neoergasilus japonicus (Poecilostomatoida: Ergasilidae), a parasitic copepod new to the Laurentian Great Lakes First record of Neoergasilus japonicus (Poecilostomatoida: Ergasilidae), a parasitic copepod new to the Laurentian Great Lakes
The parasitic copepod Neoergasilus japonicus, native to eastern Asia, was first collected from 4 species of fish (fathead minnow, Pimephales promelas; largemouth bass, Micropterus salmoides; pumpkinseed sunfish, Lepomis gibbosus; and yellow perch, Perca flavescens) in July 1994 in Saginaw Bay, Lake Huron, Michigan. Further sampling in the bay in 2001 revealed infections on 7 additional...
Authors
Patrick L. Hudson, Charles A. Bowen
Caddisflies (Insecta: Trichoptera) of fringing wetlands of the Laurentian Great Lakes Caddisflies (Insecta: Trichoptera) of fringing wetlands of the Laurentian Great Lakes
Fringing wetlands of the Laurentian Great Lakes are subject to natural processes, such as water-level fluctuation and wave-induced erosion, and to human alterations. In order to evaluate the quality of these wetlands over space and time, biological communities are often examined. This paper reports on the use of adult caddisflies to evaluate fringing wetlands of Lake Huron, Lake Michigan...
Authors
Brian J. Armitage, Patrick L. Hudson, Douglas A. Wilcox
A list of Michigan Corixidae (Hemiptera) with four new state records from the Great Lakes of Michigan A list of Michigan Corixidae (Hemiptera) with four new state records from the Great Lakes of Michigan
Corisella tarsalis, Sigara lineata, Trichocorixa borealis, and Trichocorixa kanza were recently identified from Michigan and constitute new state records. These four species were collected from two of the Great Lakes or their connecting rivers and increase the number of corixids for Michigan to 47 species. We newly report the genus Corisella for Michigan. Although most abundant in the...
Authors
Stephen W. Chordas, Patrick L. Hudson
Predation on lake trout eggs and fry: A modeling approach Predation on lake trout eggs and fry: A modeling approach
A general model was developed to examine the effects of multiple predators on survival of eggs and fry of lake trout, Salvelinus namaycush, associated with spawning reefs. Three kinds of predation were simulated: epibenthic egg predators consuming eggs on the substrate surface during spawning, interstitial egg predators that can move in rocky substrate and consume incubating eggs, and...
Authors
Jacqueline F. Savino, Patrick L. Hudson, Mary C. Fabrizio, Charles A. Bowen