Item talk:Q255315

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   "@type": "Article",
   "additionalType": "Journal Article",
   "name": "Conditions for the return and simulation of the recovery of burrowing mayflies in western Lake Erie",
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       "value": "1000623",
       "url": "https://pubs.usgs.gov/publication/1000623"
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       "value": 1000623
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       "value": "10.1890/1051-0761(1997)007[0665:CFTRAS]2.0.CO;2",
       "url": "https://doi.org/10.1890/1051-0761(1997)007[0665:CFTRAS]2.0.CO;2"
     }
   ],
   "journal": {
     "@type": "Periodical",
     "name": "Ecological Applications",
     "volumeNumber": "7",
     "issueNumber": "2"
   },
   "inLanguage": "en",
   "isPartOf": [
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       "name": "Ecological Applications"
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   "datePublished": "1997",
   "dateModified": "2023-12-22",
   "abstract": "In the 1950s, burrowing mayflies,\u00a0Hexagenia\u00a0spp. (H. limbata\u00a0and\u00a0H. rigida), were virtually eliminated from the western basin of Lake Erie (a 3300 km2\u00a0area) because of eutrophication and pollution. We develop and present a deterministic model for the recolonization of the western basin by\u00a0Hexagenia\u00a0to pre-1953 densities. The model was based on the logistic equation describing the population growth of\u00a0Hexagenia\u00a0and a presumed competitor,\u00a0Chironomus\u00a0(dipteran larvae). Other parameters (immigration, low oxygen, toxic sediments, competition with\u00a0Chironomus,\u00a0and fish predation) were then individually added to the logistic model to determine their effect at different growth rates.The logistic model alone predicts 10\u201341 yr for\u00a0Hexagenia\u00a0to recolonize western Lake Erie. Immigration reduced the recolonization time by 2\u201317 yr. One low-oxygen event during the first 20 yr increased recovery time by 5\u201317 yr. Contaminated sediments added 5\u201311 yr to the recolonization time. Competition with\u00a0Chironomus\u00a0added 8\u201319 yr to recovery. Fish predators added 4\u201347 yr to the time required for recolonization.The full model predicted 48\u201381 yr for\u00a0Hexagenia\u00a0to reach a carrying capacity of \u2248350 nymphs/m2, or not until around the year 2038 if the model is started in 1990. The model was verified by changing model parameters to those present in 1970, beginning the model in 1970 and running it through 1990. Predicted densities overlapped almost completely with actual estimated densities of\u00a0Hexagenia\u00a0nymphs present in the western basin in Lake Erie in 1990. The model suggests that recovery of large aquatic ecosystems may lag substantially behind remediation efforts.",
   "description": "12 p.",
   "publisher": {
     "@type": "Organization",
     "name": "Ecological Society of America"
   },
   "author": [
     {
       "@type": "Person",
       "name": "Kolar, Cynthia S. ckolar@usgs.gov",
       "givenName": "Cynthia S.",
       "familyName": "Kolar",
       "email": "ckolar@usgs.gov",
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         "value": "0000-0001-6634-2343",
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           "@type": "Organization",
           "name": "Office of the AD Ecosystems",
           "url": "https://www.usgs.gov/mission-areas/ecosystems"
         }
       ]
     },
     {
       "@type": "Person",
       "name": "Hudson, Patrick L. phudson@usgs.gov",
       "givenName": "Patrick L.",
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           "name": "Great Lakes Science Center",
           "url": "https://www.usgs.gov/centers/great-lakes-science-center"
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       "@type": "Person",
       "name": "Savino, Jacqueline F. jsavino@usgs.gov",
       "givenName": "Jacqueline F.",
       "familyName": "Savino",
       "email": "jsavino@usgs.gov",
       "affiliation": [
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           "@type": "Organization",
           "name": "Great Lakes Science Center",
           "url": "https://www.usgs.gov/centers/great-lakes-science-center"
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       "name": "Great Lakes Science Center",
       "url": "https://www.usgs.gov/centers/great-lakes-science-center"
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       "name": "United States",
       "url": "https://geonames.org/4074035"
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       "@type": "Place",
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       "name": "Michigan"
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       "name": "Ontario"
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