The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in Brazil
Abstract Despite the wild boar’s alarming invasive status, little is known about its impacts on aquatic environments. We assessed whether there were changes in the physical habitat of Neotropical streams and their ichthyofaunas after the record of wild boar populations in a conservation unit in Sout...
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| Format: | Article |
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Sociedade Brasileira de Ictiologia
2024-11-01
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| Series: | Neotropical Ichthyology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000400203&lng=en&tlng=en |
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| author | Marina F. Moreira Larissa B. S. Milhomens Pedro L. C. Uzeda Ana Luiza V. Andrade Paulo S. Pompeu |
| author_facet | Marina F. Moreira Larissa B. S. Milhomens Pedro L. C. Uzeda Ana Luiza V. Andrade Paulo S. Pompeu |
| author_sort | Marina F. Moreira |
| collection | DOAJ |
| description | Abstract Despite the wild boar’s alarming invasive status, little is known about its impacts on aquatic environments. We assessed whether there were changes in the physical habitat of Neotropical streams and their ichthyofaunas after the record of wild boar populations in a conservation unit in Southeastern Brazil. We characterized the physical habitat and the fish community of two streams five times between 2009 and 2022. We found differences after the wild boar invasion. The amount of fine sediment inside the streams and exposed soil increased, while the bank angle decreased. There were also modifications regarding the fish fauna, including the local disappearance of two species and the constant decline of others. Although the sampling design does not allow for the establishment of a cause-effect relationship, these changes appear to be related to alterations in the physical habitats due to the wild boar’ behavior of forming large puddles in the stream beds. This is the first long-term study to make indirect inference of a possible effect of wild boar invasion on fish community level on streams. We highlight the urgent need for similar studies in aquatic environments, especially in tropical regions, where the abundance and distribution of wild boars are increasing. |
| format | Article |
| id | doaj-art-1ac911410ced4405a912525024faa05b |
| institution | Kabale University |
| issn | 1982-0224 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj-art-1ac911410ced4405a912525024faa05b2025-01-21T07:39:19ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242024-11-0122410.1590/1982-0224-2024-0020The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in BrazilMarina F. Moreirahttps://orcid.org/0000-0002-6857-1198Larissa B. S. Milhomenshttps://orcid.org/0000-0001-7988-8935Pedro L. C. Uzedahttps://orcid.org/0000-0001-9706-0090Ana Luiza V. Andradehttps://orcid.org/0009-0002-9385-519XPaulo S. Pompeuhttps://orcid.org/0000-0002-7938-1517Abstract Despite the wild boar’s alarming invasive status, little is known about its impacts on aquatic environments. We assessed whether there were changes in the physical habitat of Neotropical streams and their ichthyofaunas after the record of wild boar populations in a conservation unit in Southeastern Brazil. We characterized the physical habitat and the fish community of two streams five times between 2009 and 2022. We found differences after the wild boar invasion. The amount of fine sediment inside the streams and exposed soil increased, while the bank angle decreased. There were also modifications regarding the fish fauna, including the local disappearance of two species and the constant decline of others. Although the sampling design does not allow for the establishment of a cause-effect relationship, these changes appear to be related to alterations in the physical habitats due to the wild boar’ behavior of forming large puddles in the stream beds. This is the first long-term study to make indirect inference of a possible effect of wild boar invasion on fish community level on streams. We highlight the urgent need for similar studies in aquatic environments, especially in tropical regions, where the abundance and distribution of wild boars are increasing.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000400203&lng=en&tlng=enAquatic communityConservation unitEnvironmental impactInvasive speciesNeotropical streams |
| spellingShingle | Marina F. Moreira Larissa B. S. Milhomens Pedro L. C. Uzeda Ana Luiza V. Andrade Paulo S. Pompeu The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in Brazil Neotropical Ichthyology Aquatic community Conservation unit Environmental impact Invasive species Neotropical streams |
| title | The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in Brazil |
| title_full | The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in Brazil |
| title_fullStr | The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in Brazil |
| title_full_unstemmed | The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in Brazil |
| title_short | The impacts of wild boars (Sus scrofa) on fish community and on instream physical habitat of two small streams in a protected area in Brazil |
| title_sort | impacts of wild boars sus scrofa on fish community and on instream physical habitat of two small streams in a protected area in brazil |
| topic | Aquatic community Conservation unit Environmental impact Invasive species Neotropical streams |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000400203&lng=en&tlng=en |
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