THE ECOLOGY OF CARRION COMMUNITIES IN MARITIME-TERRESTRIAL HABITATS: AN INSULAR STUDY OF GULL, SEAL, AND RODENT DECOMPOSITION ON THE ISLES OF SHOALS (NEW HAMPSHIRE)
During 1979-1982 I investigated aspects of the ecology of Herring Gull (Larus argentatus) and Great Black-backed Gull (Larus marinus), Harbor seal (Phoca vitulina), and rodent (Rattus norwegicus, Cricetus aurata, Mus musculus) carrion communities on the Isles of Shoals, a group of nine small islands...
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1982
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ftuninhampshire:oai:scholars.unh.edu:dissertation-3318 2023-05-15T16:33:11+02:00 THE ECOLOGY OF CARRION COMMUNITIES IN MARITIME-TERRESTRIAL HABITATS: AN INSULAR STUDY OF GULL, SEAL, AND RODENT DECOMPOSITION ON THE ISLES OF SHOALS (NEW HAMPSHIRE) LORD, WAYNE DYSON 1982-01-01T08:00:00Z application/pdf https://scholars.unh.edu/dissertation/2319 https://scholars.unh.edu/cgi/viewcontent.cgi?article=3318&context=dissertation unknown University of New Hampshire Scholars' Repository https://scholars.unh.edu/dissertation/2319 https://scholars.unh.edu/cgi/viewcontent.cgi?article=3318&context=dissertation Doctoral Dissertations Biology Ecology text 1982 ftuninhampshire 2023-01-30T21:21:21Z During 1979-1982 I investigated aspects of the ecology of Herring Gull (Larus argentatus) and Great Black-backed Gull (Larus marinus), Harbor seal (Phoca vitulina), and rodent (Rattus norwegicus, Cricetus aurata, Mus musculus) carrion communities on the Isles of Shoals, a group of nine small islands located 10 km SW of Portsmouth, New Hampshire (42(DEGREES)59'N, 70(DEGREES)37'W). Carcasses passed through a series of predictable decompositional stages (fresh, bloat, active, advanced, and dry) defined by characteristics of carrion appearance and faunal associates. Of the numerous species of invertebrates collected from coastal carrion, few played a major role in decomposition. Blow fly larvae and dermestid beetles were the primary carrion consumers. Spiders, ants, and staphylinid and histerid beetles were the major predators. The importance of carrion frequenting insects in the decomposition of vertebrate carrion located in habitats with strong maritime influences was indicated. Carrion community members were divided into 5 tropic guilds: (i) Necrophages, (ii) Necrophiles, (iii) Predators, (iv) Necrophages/Predators, (v) Parasites. Necrophages partition carrion spatially, temporally, and by extent of desiccation. Predators selected prey by location, size, and life stage. Carcasses located in "less exposed" areas characteristically supported a greater variety of species and decomposed at a slower rate. Seasonal variations in carrion abundance, availability to necrophagous arthropods, and community composition were evident on the Isles of Shoals. Small carcasses supported statistically fewer anthropod species than large; and carrion located at greater distances from source of colonists were also less species rich. The successional process, characteristics of early and late colonists, and the effects of carrion size and distance from source of colonists suggest a process of colonization and community development consistent with geographical and less ephemeral biological island systems. Text harbor seal Phoca vitulina University of New Hampshire: Scholars Repository |
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Open Polar |
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University of New Hampshire: Scholars Repository |
op_collection_id |
ftuninhampshire |
language |
unknown |
topic |
Biology Ecology |
spellingShingle |
Biology Ecology LORD, WAYNE DYSON THE ECOLOGY OF CARRION COMMUNITIES IN MARITIME-TERRESTRIAL HABITATS: AN INSULAR STUDY OF GULL, SEAL, AND RODENT DECOMPOSITION ON THE ISLES OF SHOALS (NEW HAMPSHIRE) |
topic_facet |
Biology Ecology |
description |
During 1979-1982 I investigated aspects of the ecology of Herring Gull (Larus argentatus) and Great Black-backed Gull (Larus marinus), Harbor seal (Phoca vitulina), and rodent (Rattus norwegicus, Cricetus aurata, Mus musculus) carrion communities on the Isles of Shoals, a group of nine small islands located 10 km SW of Portsmouth, New Hampshire (42(DEGREES)59'N, 70(DEGREES)37'W). Carcasses passed through a series of predictable decompositional stages (fresh, bloat, active, advanced, and dry) defined by characteristics of carrion appearance and faunal associates. Of the numerous species of invertebrates collected from coastal carrion, few played a major role in decomposition. Blow fly larvae and dermestid beetles were the primary carrion consumers. Spiders, ants, and staphylinid and histerid beetles were the major predators. The importance of carrion frequenting insects in the decomposition of vertebrate carrion located in habitats with strong maritime influences was indicated. Carrion community members were divided into 5 tropic guilds: (i) Necrophages, (ii) Necrophiles, (iii) Predators, (iv) Necrophages/Predators, (v) Parasites. Necrophages partition carrion spatially, temporally, and by extent of desiccation. Predators selected prey by location, size, and life stage. Carcasses located in "less exposed" areas characteristically supported a greater variety of species and decomposed at a slower rate. Seasonal variations in carrion abundance, availability to necrophagous arthropods, and community composition were evident on the Isles of Shoals. Small carcasses supported statistically fewer anthropod species than large; and carrion located at greater distances from source of colonists were also less species rich. The successional process, characteristics of early and late colonists, and the effects of carrion size and distance from source of colonists suggest a process of colonization and community development consistent with geographical and less ephemeral biological island systems. |
format |
Text |
author |
LORD, WAYNE DYSON |
author_facet |
LORD, WAYNE DYSON |
author_sort |
LORD, WAYNE DYSON |
title |
THE ECOLOGY OF CARRION COMMUNITIES IN MARITIME-TERRESTRIAL HABITATS: AN INSULAR STUDY OF GULL, SEAL, AND RODENT DECOMPOSITION ON THE ISLES OF SHOALS (NEW HAMPSHIRE) |
title_short |
THE ECOLOGY OF CARRION COMMUNITIES IN MARITIME-TERRESTRIAL HABITATS: AN INSULAR STUDY OF GULL, SEAL, AND RODENT DECOMPOSITION ON THE ISLES OF SHOALS (NEW HAMPSHIRE) |
title_full |
THE ECOLOGY OF CARRION COMMUNITIES IN MARITIME-TERRESTRIAL HABITATS: AN INSULAR STUDY OF GULL, SEAL, AND RODENT DECOMPOSITION ON THE ISLES OF SHOALS (NEW HAMPSHIRE) |
title_fullStr |
THE ECOLOGY OF CARRION COMMUNITIES IN MARITIME-TERRESTRIAL HABITATS: AN INSULAR STUDY OF GULL, SEAL, AND RODENT DECOMPOSITION ON THE ISLES OF SHOALS (NEW HAMPSHIRE) |
title_full_unstemmed |
THE ECOLOGY OF CARRION COMMUNITIES IN MARITIME-TERRESTRIAL HABITATS: AN INSULAR STUDY OF GULL, SEAL, AND RODENT DECOMPOSITION ON THE ISLES OF SHOALS (NEW HAMPSHIRE) |
title_sort |
ecology of carrion communities in maritime-terrestrial habitats: an insular study of gull, seal, and rodent decomposition on the isles of shoals (new hampshire) |
publisher |
University of New Hampshire Scholars' Repository |
publishDate |
1982 |
url |
https://scholars.unh.edu/dissertation/2319 https://scholars.unh.edu/cgi/viewcontent.cgi?article=3318&context=dissertation |
genre |
harbor seal Phoca vitulina |
genre_facet |
harbor seal Phoca vitulina |
op_source |
Doctoral Dissertations |
op_relation |
https://scholars.unh.edu/dissertation/2319 https://scholars.unh.edu/cgi/viewcontent.cgi?article=3318&context=dissertation |
_version_ |
1766022889520234496 |