Pub Date : 2021-06-11DOI: 10.2179/0008-7475.86.1.37
P. Schmalzer, T. Foster
ABSTRACT Florida scrub is a fire-maintained shrub vegetation of well-drained, sandy soils; dominant species include several species of Quercus and Serenoa repens. In a remediation project, treated groundwater was distributed through an exfiltration gallery into intact scrub. We established eight permanent line-intercept transects (15 m length) in the site in April 2002, four close to the exfiltration gallery and four more distant from it. We sampled vegetation, <0.5 m and ≥0.5 m, along each transect and measured vegetation height at four points (0, 5, 10, 15 m) annually through 2019. The initial phase of the project operated from October 2002 to early March 2004 (494 days) and distributed 1.74 × 108 L of water. The final phase of the project occurred from March 2005 through August 2008 (1,251 days) and distributed 1.90 × 108 L of water. Pumping raised the water table near the exfiltration gallery. Vegetation height did not differ between the near and far transects initially. Vegetation height increased in the near transects by 2004 with the greatest percent change in 2003 and 2004 as did total cover ≥0.5 m. Total cover <0.5 m and bare ground were similar initially in the near and far transects and declined in the near transects by 2004. Scrub species, particularly the dominant scrub oaks, increased height and cover in response to water additions with no loss of dominant scrub species and no establishment of mesophytes. Hurricane Frances (September 2004) reduced cover ≥0.5 m the following year. Hurricane Matthew (October 2016) and Hurricane Irma (September 2017) caused greater damage including breaking limbs as reflected in reduced height and total cover ≥0.5 m probably because the older, taller scrub was more vulnerable to wind damage.
{"title":"Responses of Florida Scrub Vegetation to Water Additions from a Groundwater Treatment Project and to Hurricane Disturbance","authors":"P. Schmalzer, T. Foster","doi":"10.2179/0008-7475.86.1.37","DOIUrl":"https://doi.org/10.2179/0008-7475.86.1.37","url":null,"abstract":"ABSTRACT Florida scrub is a fire-maintained shrub vegetation of well-drained, sandy soils; dominant species include several species of Quercus and Serenoa repens. In a remediation project, treated groundwater was distributed through an exfiltration gallery into intact scrub. We established eight permanent line-intercept transects (15 m length) in the site in April 2002, four close to the exfiltration gallery and four more distant from it. We sampled vegetation, <0.5 m and ≥0.5 m, along each transect and measured vegetation height at four points (0, 5, 10, 15 m) annually through 2019. The initial phase of the project operated from October 2002 to early March 2004 (494 days) and distributed 1.74 × 108 L of water. The final phase of the project occurred from March 2005 through August 2008 (1,251 days) and distributed 1.90 × 108 L of water. Pumping raised the water table near the exfiltration gallery. Vegetation height did not differ between the near and far transects initially. Vegetation height increased in the near transects by 2004 with the greatest percent change in 2003 and 2004 as did total cover ≥0.5 m. Total cover <0.5 m and bare ground were similar initially in the near and far transects and declined in the near transects by 2004. Scrub species, particularly the dominant scrub oaks, increased height and cover in response to water additions with no loss of dominant scrub species and no establishment of mesophytes. Hurricane Frances (September 2004) reduced cover ≥0.5 m the following year. Hurricane Matthew (October 2016) and Hurricane Irma (September 2017) caused greater damage including breaking limbs as reflected in reduced height and total cover ≥0.5 m probably because the older, taller scrub was more vulnerable to wind damage.","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"86 1","pages":"37 - 52"},"PeriodicalIF":0.4,"publicationDate":"2021-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45012312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-11DOI: 10.2179/0008-7475.86.1.61
Daniel Koenemann, Amber Durand, Janelle M. Burke
ABSTRACT Wheaton Regional Park is a suburban 500-acre park in Montgomery County, Maryland, on the northern edge of the Washington, D.C., metropolitan area. Early floristic surveys of the park, conducted between 1961–1964 when the park was founded, showed the park to be diverse, with 443 taxa of vascular plants. Our research team conducted a second round of floristic surveys between 2014–2019 to update the checklist of plants in the park. Here, we present a comprehensive checklist of all species collected in the park over the past 50 years, discuss recent plant introductions, and share a platform for a digital flora of the park through the Mid-Atlantic Megalopolis online portal. We documented 393 vascular plant species from the 1960s, as part of a comprehensive review of those collections. The 2010s collections recorded 293 vascular plant species, and an additional 16 species of bryophytes. In total, 554 species of plants (vascular and non-vascular) in 326 genera and 118 families have been recorded in Wheaton Regional Park over the past 50 years. We found that the surveys in the 2010s identified a substantial number of vascular plant species that were not recorded in the 1960s surveys. Additionally, we were able to recover less than half of the vascular plants recorded in the 1960s. The proportion of non-native vascular plant species increased from 22.1% in the 1960s to 34.5% in the 2010s. We offer recommendations for preserving the extant diversity of native plants in the park.
{"title":"A Floral Checklist for Wheaton Regional Park, Montgomery County, Maryland","authors":"Daniel Koenemann, Amber Durand, Janelle M. Burke","doi":"10.2179/0008-7475.86.1.61","DOIUrl":"https://doi.org/10.2179/0008-7475.86.1.61","url":null,"abstract":"ABSTRACT Wheaton Regional Park is a suburban 500-acre park in Montgomery County, Maryland, on the northern edge of the Washington, D.C., metropolitan area. Early floristic surveys of the park, conducted between 1961–1964 when the park was founded, showed the park to be diverse, with 443 taxa of vascular plants. Our research team conducted a second round of floristic surveys between 2014–2019 to update the checklist of plants in the park. Here, we present a comprehensive checklist of all species collected in the park over the past 50 years, discuss recent plant introductions, and share a platform for a digital flora of the park through the Mid-Atlantic Megalopolis online portal. We documented 393 vascular plant species from the 1960s, as part of a comprehensive review of those collections. The 2010s collections recorded 293 vascular plant species, and an additional 16 species of bryophytes. In total, 554 species of plants (vascular and non-vascular) in 326 genera and 118 families have been recorded in Wheaton Regional Park over the past 50 years. We found that the surveys in the 2010s identified a substantial number of vascular plant species that were not recorded in the 1960s surveys. Additionally, we were able to recover less than half of the vascular plants recorded in the 1960s. The proportion of non-native vascular plant species increased from 22.1% in the 1960s to 34.5% in the 2010s. We offer recommendations for preserving the extant diversity of native plants in the park.","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"86 1","pages":"61 - 99"},"PeriodicalIF":0.4,"publicationDate":"2021-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42933556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-11DOI: 10.2179/0008-7475.86.1.125
F. Levy
ABSTRACT In the Ridge and Valley physiographic province, knobs stand out as anomalous landforms embedded within a region of long, parallel ridges and valleys. In northeastern Tennessee, knobs are associated with the Sevier shale. Well-drained, acidic, channery loam Montevallo soils cover uplands of these knobs. A flora of the Sevier shale knobs of northeastern Tennessee identified 265 taxa in 57 plant families of which 13.6% were exotic and three were state listed (Berberis canadensis, Ruellia purshiana, Silene caroliniana var. pensylvanica). Many taxa had rarely or never been collected in northeastern Tennessee. The flora of the Sevier shale knobs was most similar to dolomite and limestone barrens of southwestern Virginia but among the species rarely collected in northeastern Tennessee, the greatest number was shared with floras of the Sequatchie Valley, middle Tennessee cedar glades, and barrens of the Tennessee eastern Highland Rim.
在山脊和山谷地理省，旋钮作为嵌入在长而平行的山脊和山谷区域内的异常地貌而引人注目。在田纳西州东北部，旋钮与塞维尔页岩有关。排水良好，酸性，河道壤土蒙特瓦洛覆盖这些隆起的高地。美国田纳西州东北部塞维尔页岩的植物区系共鉴定出57科265个分类群，其中13.6%为外来植物，3个被列入国家名录(小檗属加拿大，鲁利亚purshiana, Silene caroliniana vara . pennsylvania)。许多分类群在田纳西州东北部很少或从未被采集到。塞维尔页岩旋涡的植物区系与弗吉尼亚州西南部的白云岩和石灰石荒地最相似，但在田纳西州东北部很少收集到的物种中，数量最多的是与Sequatchie山谷、田纳西州中部雪松林地和田纳西州东部高地边缘的荒地共有的植物区系。
{"title":"Vascular Flora and Biogeographic Affinity of the Sevier Shale Knobs of Northeastern Tennessee","authors":"F. Levy","doi":"10.2179/0008-7475.86.1.125","DOIUrl":"https://doi.org/10.2179/0008-7475.86.1.125","url":null,"abstract":"ABSTRACT In the Ridge and Valley physiographic province, knobs stand out as anomalous landforms embedded within a region of long, parallel ridges and valleys. In northeastern Tennessee, knobs are associated with the Sevier shale. Well-drained, acidic, channery loam Montevallo soils cover uplands of these knobs. A flora of the Sevier shale knobs of northeastern Tennessee identified 265 taxa in 57 plant families of which 13.6% were exotic and three were state listed (Berberis canadensis, Ruellia purshiana, Silene caroliniana var. pensylvanica). Many taxa had rarely or never been collected in northeastern Tennessee. The flora of the Sevier shale knobs was most similar to dolomite and limestone barrens of southwestern Virginia but among the species rarely collected in northeastern Tennessee, the greatest number was shared with floras of the Sequatchie Valley, middle Tennessee cedar glades, and barrens of the Tennessee eastern Highland Rim.","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"86 1","pages":"125 - 142"},"PeriodicalIF":0.4,"publicationDate":"2021-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47073761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-22DOI: 10.2179/0008-7475.85.2.327
R. Tyndall
{"title":"Changes in Herbaceous Species Variables After Enhanced Hunting Effort for White-tailed Deer in Soldiers Delight Serpentine Ecosystem in Maryland","authors":"R. Tyndall","doi":"10.2179/0008-7475.85.2.327","DOIUrl":"https://doi.org/10.2179/0008-7475.85.2.327","url":null,"abstract":"","PeriodicalId":50984,"journal":{"name":"Castanea","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44414707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-22DOI: 10.2179/0008-7475.85.2.422
{"title":"2020 Elizabeth Anne Bartholomew Award Wendy B. Zomlefer","authors":"","doi":"10.2179/0008-7475.85.2.422","DOIUrl":"https://doi.org/10.2179/0008-7475.85.2.422","url":null,"abstract":"","PeriodicalId":50984,"journal":{"name":"Castanea","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43620166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-22DOI: 10.2179/0008-7475.85.2.420
Chris Randle
{"title":"2019 Elizabeth Anne Bartholomew Award Michael E. Held (1953–2020)","authors":"Chris Randle","doi":"10.2179/0008-7475.85.2.420","DOIUrl":"https://doi.org/10.2179/0008-7475.85.2.420","url":null,"abstract":"","PeriodicalId":50984,"journal":{"name":"Castanea","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45562454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-22DOI: 10.2179/0008-7475.85.2.425
{"title":"2021 Elizabeth Ann Bartholomew Award Call for Nominations","authors":"","doi":"10.2179/0008-7475.85.2.425","DOIUrl":"https://doi.org/10.2179/0008-7475.85.2.425","url":null,"abstract":"","PeriodicalId":50984,"journal":{"name":"Castanea","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44142358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-22DOI: 10.2179/0008-7475.85.2.426
C. Horn
{"title":"Michael E. Held (1953–2020)","authors":"C. Horn","doi":"10.2179/0008-7475.85.2.426","DOIUrl":"https://doi.org/10.2179/0008-7475.85.2.426","url":null,"abstract":"","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"85 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41626799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-22DOI: 10.2179/0008-7475.85.2.343
Amanda D Benoit, M. Oliver, Ryan J. Vichich, Jessica M. Budke
{"title":"Noteworthy Collections: First Record of the Non-native Plant Portulaca amilis (Portulacaceae) in Tennessee","authors":"Amanda D Benoit, M. Oliver, Ryan J. Vichich, Jessica M. Budke","doi":"10.2179/0008-7475.85.2.343","DOIUrl":"https://doi.org/10.2179/0008-7475.85.2.343","url":null,"abstract":"","PeriodicalId":50984,"journal":{"name":"Castanea","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47716707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-01-22DOI: 10.2179/0008-7475.85.2.376
Rebecca B. Wilbur, H. Wilbur, Nancy J. Peterson
{"title":"Flora of the Forest at Mountain Lake Biological Station, Giles County, Virginia","authors":"Rebecca B. Wilbur, H. Wilbur, Nancy J. Peterson","doi":"10.2179/0008-7475.85.2.376","DOIUrl":"https://doi.org/10.2179/0008-7475.85.2.376","url":null,"abstract":"","PeriodicalId":50984,"journal":{"name":"Castanea","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48956481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：