Life-history Aspects of Stereochilus marginatus, with a Comparison of Larval Development in Syntopic S. marginatus and Pseudotriton montanus (Amphibia: Plethodontidae)
The plethodontid salamanders Stereochilus marginatus (Many-lined Salamander) and Pseudotriton montanus (Mud Salamander) have overlapping distributions in the southeastern Atlantic Coastal Plain, where they often co-occur in low, swampy habitats. The main objective of this study was to document life-...
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description | The plethodontid salamanders Stereochilus marginatus (Many-lined Salamander) and Pseudotriton montanus (Mud Salamander) have overlapping distributions in the southeastern Atlantic Coastal Plain, where they often co-occur in low, swampy habitats. The main objective of this study was to document life-history traits of S. marginatus at Cool Springs in eastern North Carolina, and compare these findings with life-history parameters of a population surveyed in the late 1960s at a nearby locality (Croatan Forest). A second objective was to compare larval development of S. marginatus and P. montanus at Cool Springs. I found that S. marginatus has a larval period of 13–14 months, hatching in early spring and undergoing metamorphosis late in the second spring. Males may breed initially as early as the autumn following metamorphosis, at 19–21 months of age; females probably require an additional year to attain maturity, ovipositing initially at 3 years. Clutch sizes, based on counts of yolked ovarian follicles of dissected females, ranged from 42 to 60. Compared to S. marginatus, the larval period of P. montanus is slightly longer (14–17 months), extending from hatching in winter to metamorphosis in the second spring. Although larval body sizes of S. marginatus and P. montanus overlap considerably, larvae of the latter species tend to grow larger and metamorphose at slightly larger sizes. The phenologies of the life cycles of both species corroborate earlier studies, both across years and across southeastern localities. However, growth and developmental rates of S. marginatus at Cool Springs appear to be accelerated relative to those reported previously for the Croatan Forest population. |
doi_str_mv | 10.1656/1528-7092-7.4.705 |
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The main objective of this study was to document life-history traits of S. marginatus at Cool Springs in eastern North Carolina, and compare these findings with life-history parameters of a population surveyed in the late 1960s at a nearby locality (Croatan Forest). A second objective was to compare larval development of S. marginatus and P. montanus at Cool Springs. I found that S. marginatus has a larval period of 13–14 months, hatching in early spring and undergoing metamorphosis late in the second spring. Males may breed initially as early as the autumn following metamorphosis, at 19–21 months of age; females probably require an additional year to attain maturity, ovipositing initially at 3 years. Clutch sizes, based on counts of yolked ovarian follicles of dissected females, ranged from 42 to 60. Compared to S. marginatus, the larval period of P. montanus is slightly longer (14–17 months), extending from hatching in winter to metamorphosis in the second spring. Although larval body sizes of S. marginatus and P. montanus overlap considerably, larvae of the latter species tend to grow larger and metamorphose at slightly larger sizes. The phenologies of the life cycles of both species corroborate earlier studies, both across years and across southeastern localities. However, growth and developmental rates of S. marginatus at Cool Springs appear to be accelerated relative to those reported previously for the Croatan Forest population.</description><identifier>ISSN: 1528-7092</identifier><identifier>EISSN: 1938-5412</identifier><identifier>DOI: 10.1656/1528-7092-7.4.705</identifier><language>eng</language><publisher>Southeastern Naturalist</publisher><subject>Amphibia ; Caudata ; Coastal plains ; Ecological life histories ; Female animals ; Follicles ; Larvae ; Larval development ; Metamorphosis ; Plethodontidae ; Pseudotriton montanus ; Research s ; Salamanders ; Species ; Stereochilus marginatus ; Swamps</subject><ispartof>Southeastern naturalist (Steuben, Me.), 2008-01, Vol.7 (4), p.705-716</ispartof><rights>2008 This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original URL.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-b290t-c1b3bee14ac2c8756674fd85c8702f12eeda55ded29b5a28b97c38e68643311b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://bioone.org/doi/pdf/10.1656/1528-7092-7.4.705$$EPDF$$P50$$Gbioone$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/20204043$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,26978,27924,27925,52363,58017,58250</link.rule.ids></links><search><creatorcontrib>Bruce, Richard C.</creatorcontrib><title>Life-history Aspects of Stereochilus marginatus, with a Comparison of Larval Development in Syntopic S. marginatus and Pseudotriton montanus (Amphibia: Plethodontidae)</title><title>Southeastern naturalist (Steuben, Me.)</title><description>The plethodontid salamanders Stereochilus marginatus (Many-lined Salamander) and Pseudotriton montanus (Mud Salamander) have overlapping distributions in the southeastern Atlantic Coastal Plain, where they often co-occur in low, swampy habitats. The main objective of this study was to document life-history traits of S. marginatus at Cool Springs in eastern North Carolina, and compare these findings with life-history parameters of a population surveyed in the late 1960s at a nearby locality (Croatan Forest). A second objective was to compare larval development of S. marginatus and P. montanus at Cool Springs. I found that S. marginatus has a larval period of 13–14 months, hatching in early spring and undergoing metamorphosis late in the second spring. Males may breed initially as early as the autumn following metamorphosis, at 19–21 months of age; females probably require an additional year to attain maturity, ovipositing initially at 3 years. Clutch sizes, based on counts of yolked ovarian follicles of dissected females, ranged from 42 to 60. Compared to S. marginatus, the larval period of P. montanus is slightly longer (14–17 months), extending from hatching in winter to metamorphosis in the second spring. Although larval body sizes of S. marginatus and P. montanus overlap considerably, larvae of the latter species tend to grow larger and metamorphose at slightly larger sizes. The phenologies of the life cycles of both species corroborate earlier studies, both across years and across southeastern localities. However, growth and developmental rates of S. marginatus at Cool Springs appear to be accelerated relative to those reported previously for the Croatan Forest population.</description><subject>Amphibia</subject><subject>Caudata</subject><subject>Coastal plains</subject><subject>Ecological life histories</subject><subject>Female animals</subject><subject>Follicles</subject><subject>Larvae</subject><subject>Larval development</subject><subject>Metamorphosis</subject><subject>Plethodontidae</subject><subject>Pseudotriton montanus</subject><subject>Research s</subject><subject>Salamanders</subject><subject>Species</subject><subject>Stereochilus marginatus</subject><subject>Swamps</subject><issn>1528-7092</issn><issn>1938-5412</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqNkd9K5DAYxYusoDv6AF4IuVoU7EySNv2zd8Po7goFhdHrkKZft5E2qUmqzBP5mqbMunjpVQ6cc36Q80XRGcFLkrFsRRgt4hyXNM6X6TLH7CA6JmVSxCwl9FvQH_5R9N25J4xJRklxHL1VqoW4U84bu0NrN4L0DpkWbT1YMLJT_eTQIOxfpYWf3BV6Vb5DAm3MMAqrnNFzuhL2RfToGl6gN-MA2iOl0XanvRmVRNvlJwQSukH3DqbGeKt8AAxGe6GDc7Eexk7VSvxE9z34zjTBUY2Ay5PosBW9g9N_7yJ6_HXzsPkTV3e_bzfrKq5piX0sSZ3UACQVksoiZ1mWp21TsKAxbQkFaARjDTS0rJmgRV3mMikgK7I0SUgoL6Ife-5ozfMEzvNBOQl9LzSYyXGKacbyMglBsg9Ka5yz0PLRqvDJHSeYzyfh8-R8npznPA2Chc75vvM0z_2_EJg4xenMXO39Whmj4QvEdySimpM</recordid><startdate>20080101</startdate><enddate>20080101</enddate><creator>Bruce, Richard C.</creator><general>Southeastern Naturalist</general><general>Humboldt Field Research Institute</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>20080101</creationdate><title>Life-history Aspects of Stereochilus marginatus, with a Comparison of Larval Development in Syntopic S. marginatus and Pseudotriton montanus (Amphibia: Plethodontidae)</title><author>Bruce, Richard C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b290t-c1b3bee14ac2c8756674fd85c8702f12eeda55ded29b5a28b97c38e68643311b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Amphibia</topic><topic>Caudata</topic><topic>Coastal plains</topic><topic>Ecological life histories</topic><topic>Female animals</topic><topic>Follicles</topic><topic>Larvae</topic><topic>Larval development</topic><topic>Metamorphosis</topic><topic>Plethodontidae</topic><topic>Pseudotriton montanus</topic><topic>Research s</topic><topic>Salamanders</topic><topic>Species</topic><topic>Stereochilus marginatus</topic><topic>Swamps</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bruce, Richard C.</creatorcontrib><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Southeastern naturalist (Steuben, Me.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bruce, Richard C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Life-history Aspects of Stereochilus marginatus, with a Comparison of Larval Development in Syntopic S. marginatus and Pseudotriton montanus (Amphibia: Plethodontidae)</atitle><jtitle>Southeastern naturalist (Steuben, Me.)</jtitle><date>2008-01-01</date><risdate>2008</risdate><volume>7</volume><issue>4</issue><spage>705</spage><epage>716</epage><pages>705-716</pages><issn>1528-7092</issn><eissn>1938-5412</eissn><abstract>The plethodontid salamanders Stereochilus marginatus (Many-lined Salamander) and Pseudotriton montanus (Mud Salamander) have overlapping distributions in the southeastern Atlantic Coastal Plain, where they often co-occur in low, swampy habitats. The main objective of this study was to document life-history traits of S. marginatus at Cool Springs in eastern North Carolina, and compare these findings with life-history parameters of a population surveyed in the late 1960s at a nearby locality (Croatan Forest). A second objective was to compare larval development of S. marginatus and P. montanus at Cool Springs. I found that S. marginatus has a larval period of 13–14 months, hatching in early spring and undergoing metamorphosis late in the second spring. Males may breed initially as early as the autumn following metamorphosis, at 19–21 months of age; females probably require an additional year to attain maturity, ovipositing initially at 3 years. Clutch sizes, based on counts of yolked ovarian follicles of dissected females, ranged from 42 to 60. Compared to S. marginatus, the larval period of P. montanus is slightly longer (14–17 months), extending from hatching in winter to metamorphosis in the second spring. Although larval body sizes of S. marginatus and P. montanus overlap considerably, larvae of the latter species tend to grow larger and metamorphose at slightly larger sizes. The phenologies of the life cycles of both species corroborate earlier studies, both across years and across southeastern localities. However, growth and developmental rates of S. marginatus at Cool Springs appear to be accelerated relative to those reported previously for the Croatan Forest population.</abstract><pub>Southeastern Naturalist</pub><doi>10.1656/1528-7092-7.4.705</doi><tpages>12</tpages></addata></record> |
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subjects | Amphibia Caudata Coastal plains Ecological life histories Female animals Follicles Larvae Larval development Metamorphosis Plethodontidae Pseudotriton montanus Research s Salamanders Species Stereochilus marginatus Swamps |
title | Life-history Aspects of Stereochilus marginatus, with a Comparison of Larval Development in Syntopic S. marginatus and Pseudotriton montanus (Amphibia: Plethodontidae) |
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