{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/89107"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/89107","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Distribution of non-native wetland plants is facilitated by urbanization and roads in the Chicago region","abstract":"Human modification of the landscape, including urbanization and road construction, has facilitated the spread and establishment of non-native plant species. Urban areas have often been introduction points for species and have a combination of factors making them susceptible to invasion; including reduced habitat area, loss of unique habitat types, and increased nutrient run-off. Roads facilitate the spread of non-native plant species by providing locally disturbed habitat and a corridor for propagule dispersal. I conducted two analyses to assess how changes in the environment through urbanization and road construction facilitate the distribution of non-native plant species. For these analyses I used species occurrence data from over 2000 wetlands within the Chicago region. In the first analysis I examined the influence of urbanization and roads on the occurrences of 15 non-native plant species. I found that species, or groups of species, responded differently to the effects of urbanization and roads. For example, occurrences of halophyte species were best predicted by road variables; halophytes were more commonly associated with major roads such as interstates and federal highways, road types that are likely to receive greater applications of de-icing salts. For the second analysis I examined non-native species composition and identified non-native-dominated community types; I then conducted a similarity-based analysis to show that these novel communities are repeated across the landscape in a predictable way. I evaluated the contribution of surrounding land cover, roads, and geographic distances among wetlands to the similarity of plant communities. Non-native species were found to be widespread across the region. I found that non-native species similarity was most strongly correlated with similarity of land cover within 100 m of wetlands. This analysis was repeated for identified community types. My findings that similar changes to the landscape have resulted in similar combinations of non-native species is evidence that anthropogenic drivers are creating novel habitats and ultimately novel community types. Together my analyses have implications for understanding and managing non-native plant species within urban areas.","abstract_html":"Human modification of the landscape, including urbanization and road construction, has facilitated the spread and establishment of non-native plant species. Urban areas have often been introduction points for species and have a combination of factors making them susceptible to invasion; including reduced habitat area, loss of unique habitat types, and increased nutrient run-off. Roads facilitate the spread of non-native plant species by providing locally disturbed habitat and a corridor for propagule dispersal. I conducted two analyses to assess how changes in the environment through urbanization and road construction facilitate the distribution of non-native plant species. For these analyses I used species occurrence data from over 2000 wetlands within the Chicago region. In the first analysis I examined the influence of urbanization and roads on the occurrences of 15 non-native plant species. I found that species, or groups of species, responded differently to the effects of urbanization and roads. For example, occurrences of halophyte species were best predicted by road variables; halophytes were more commonly associated with major roads such as interstates and federal highways, road types that are likely to receive greater applications of de-icing salts. For the second analysis I examined non-native species composition and identified non-native-dominated community types; I then conducted a similarity-based analysis to show that these novel communities are repeated across the landscape in a predictable way. I evaluated the contribution of surrounding land cover, roads, and geographic distances among wetlands to the similarity of plant communities. Non-native species were found to be widespread across the region. I found that non-native species similarity was most strongly correlated with similarity of land cover within 100 m of wetlands. This analysis was repeated for identified community types. My findings that similar changes to the landscape have resulted in similar combinations of non-native species is evidence that anthropogenic drivers are creating novel habitats and ultimately novel community types. Together my analyses have implications for understanding and managing non-native plant species within urban areas.","abstract_has_math":false,"creators":["Skultety, Dennis Phillip"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Natural Resources & Environmental Sciences","degree_department":null,"school":null,"contributors":["Matthews, Jefferey W."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-03-02T20:23:15Z","date_published":"2016-03-02T20:23:15Z","updated_at":"2026-07-22T22:26:32Z","subjects":["wetlands","halophytes","non-native species distribution","dissimilarity"],"languages":["en"],"rights":["Copyright 2015 Dennis Skultety"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/89107","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Matthews, Jefferey W."]},{"key":"dc:creator","label":"Author","values":["Skultety, Dennis Phillip"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2016-03-02T20:23:15Z","2018-03-03T10:15:17Z","2015-10-30","2015-12"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Natural Resources & Environmental Sciences"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["wetlands","halophytes","non-native species distribution","dissimilarity"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2015 Dennis Skultety"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/89107"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Human modification of the landscape, including urbanization and road construction, has facilitated the spread and establishment of non-native plant species. Urban areas have often been introduction points for species and have a combination of factors making them susceptible to invasion; including reduced habitat area, loss of unique habitat types, and increased nutrient run-off. Roads facilitate the spread of non-native plant species by providing locally disturbed habitat and a corridor for propagule dispersal. I conducted two analyses to assess how changes in the environment through urbanization and road construction facilitate the distribution of non-native plant species. For these analyses I used species occurrence data from over 2000 wetlands within the Chicago region. In the first analysis I examined the influence of urbanization and roads on the occurrences of 15 non-native plant species. I found that species, or groups of species, responded differently to the effects of urbanization and roads. For example, occurrences of halophyte species were best predicted by road variables; halophytes were more commonly associated with major roads such as interstates and federal highways, road types that are likely to receive greater applications of de-icing salts. For the second analysis I examined non-native species composition and identified non-native-dominated community types; I then conducted a similarity-based analysis to show that these novel communities are repeated across the landscape in a predictable way. I evaluated the contribution of surrounding land cover, roads, and geographic distances among wetlands to the similarity of plant communities. Non-native species were found to be widespread across the region. I found that non-native species similarity was most strongly correlated with similarity of land cover within 100 m of wetlands. This analysis was repeated for identified community types. My findings that similar changes to the landscape have resulted in similar combinations of non-native species is evidence that anthropogenic drivers are creating novel habitats and ultimately novel community types. Together my analyses have implications for understanding and managing non-native plant species within urban areas.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2017-12-01","The student, Dennis Skultety, accepted the attached license on 2015-10-29 at 14:44.","The student, Dennis Skultety, submitted this Thesis for approval on 2015-10-29 at 14:51.","This Thesis was approved for publication on 2015-10-30 at 08:38.","DSpace SAF Submission Ingestion Package generated from Vireo submission #8749 on 2016-03-02 at 14:05:07","Made available in DSpace on 2016-03-02T20:23:15Z (GMT). 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Urban areas have often been introduction points for species and have a combination of factors making them susceptible to invasion; including reduced habitat area, loss of unique habitat types, and increased nutrient run-off. Roads facilitate the spread of non-native plant species by providing locally disturbed habitat and a corridor for propagule dispersal. I conducted two analyses to assess how changes in the environment through urbanization and road construction facilitate the distribution of non-native plant species. For these analyses I used species occurrence data from over 2000 wetlands within the Chicago region. In the first analysis I examined the influence of urbanization and roads on the occurrences of 15 non-native plant species. I found that species, or groups of species, responded differently to the effects of urbanization and roads. For example, occurrences of halophyte species were best predicted by road variables; halophytes were more commonly associated with major roads such as interstates and federal highways, road types that are likely to receive greater applications of de-icing salts. For the second analysis I examined non-native species composition and identified non-native-dominated community types; I then conducted a similarity-based analysis to show that these novel communities are repeated across the landscape in a predictable way. I evaluated the contribution of surrounding land cover, roads, and geographic distances among wetlands to the similarity of plant communities. Non-native species were found to be widespread across the region. I found that non-native species similarity was most strongly correlated with similarity of land cover within 100 m of wetlands. This analysis was repeated for identified community types. My findings that similar changes to the landscape have resulted in similar combinations of non-native species is evidence that anthropogenic drivers are creating novel habitats and ultimately novel community types. Together my analyses have implications for understanding and managing non-native plant species within urban areas.","Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2017-12-01","The student, Dennis Skultety, accepted the attached license on 2015-10-29 at 14:44.","The student, Dennis Skultety, submitted this Thesis for approval on 2015-10-29 at 14:51.","This Thesis was approved for publication on 2015-10-30 at 08:38.","DSpace SAF Submission Ingestion Package generated from Vireo submission #8749 on 2016-03-02 at 14:05:07","Made available in DSpace on 2016-03-02T20:23:15Z (GMT). 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