IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.91

Ashley B. Morris, C. Visger, Simon C Watkins, Cathy Pollack

{"title":"Extremely Low Levels of Genetic Variation and Predicted Shifts in Suitable Niche Space for a Geographically Disjunct, Federally Endangered Legume, Leafy Prairie-Clover (Dalea foliosa)","authors":"Ashley B. Morris, C. Visger, Simon C Watkins, Cathy Pollack","doi":"10.2179/0008-7475.88.1.91","DOIUrl":"https://doi.org/10.2179/0008-7475.88.1.91","url":null,"abstract":"ABSTRACT Taxa with geographically disjunct distributions and that are endemic or narrowly endemic face the real and immediate threat of local extinction because of inbreeding depression, genetic drift, and environmental stochasticity. These threats are amplified by the predicted changes in climate anticipated within the next 50 years, pointing to the increasing need for population genetic data and translocation experiments to track long-term evolutionary potential in rare plant species. In this study, we assessed population genetic structure within and among natural, augmented, and introduced populations of leafy prairie-clover (Dalea foliosa; Fabaceae) in a geographically disjunct region of the species range (i.e., Illinois) and predicted future potential changes in climate within the study region. Using six novel nuclear microsatellite loci to survey nine populations from Illinois and two from Tennessee, we found extremely limited genetic diversity and no structure among populations within Illinois, with greater genetic diversity within and between populations in Tennessee. Using future climate visualizations, we predict the Illinois portion of the species range will be warmer and wetter within the next 50 years, potentially increasing competition for D. foliosa habitat through woody encroachment. When considered together, these concerns point to the need to prioritize actions that will improve our understanding of the implications of translocations across geographically disjunct regions within the species range.","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"88 1","pages":"91 - 110"},"PeriodicalIF":0.4,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43277406","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}

引用次数: 0

Plant and Arthropod Community Responses to Fire in a Glade-Forest Landscape Matrix Glade森林景观基质中植物和节肢动物群落对火灾的响应

IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.79

J. Brandon, J. T. Diggs, E. Lampert

{"title":"Plant and Arthropod Community Responses to Fire in a Glade-Forest Landscape Matrix","authors":"J. Brandon, J. T. Diggs, E. Lampert","doi":"10.2179/0008-7475.88.1.79","DOIUrl":"https://doi.org/10.2179/0008-7475.88.1.79","url":null,"abstract":"ABSTRACT Fragmented landscapes are a mosaic of ecosystems containing diverse communities of plants and herbivorous arthropods. Plant responses to fire in fire-prone ecosystems are well documented, but less is known about how plant-herbivorous arthropod interactions respond to fires. This study compared the responses of plant communities and their interactions with herbivorous arthropods to fire in a highly fragmented fire-prone glade system. Due to the mosaic landscape of the study site, three habitat types were chosen to delineate communities based on plant species composition, geology, and proximity to each other: small enclosed glade, large open glade, mixed hardwood forest, and pine savanna. From 2016–2019, we observed the interspecific interactions between plant and arthropod communities in the Ketona dolomitic glades of Bibb County in central Alabama. We identified plants to genus or species and recorded evidence of herbivory by seven herbivore guilds of arthropods. We used non-Metric Multidimensional Scaling and Analysis of Similarity to determine patterns of change between the habitats and across years for both plant species and interactions with herbivorous arthropods. Plant communities return to pre-burn species diversity within two years. Plant community composition was grouped strongly by habitat type and year, while interactions with herbivorous arthropods were homogenous across habitats but grouped strongly by year. Tracking herbivorous arthropod guilds using plant association evidence is useful for rapidly and temporally determining overall responses in herbivorous arthropod guild composition. However, it is too coarse to determine changes and responses in herbivorous arthropod guild composition at finer spatial scales.","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"88 1","pages":"79 - 90"},"PeriodicalIF":0.4,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41561810","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}

引用次数: 0

A Morphometric Analysis of the Cyperus squarrosus-Cyperus granitophilus Complex in North America, with the Description of a New Variety of Cyperus squarrosus 北美洲莎草-莎草亲花岗岩复合体的形态计量学分析及莎草新变种的描述

IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.1

Phillip D. Lowe, J. R. Carter

引用次数: 0

2023 Richard and Minnie Windler Award Recipients 2023年理查德和米妮温德勒奖得主

IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.155

Katherine E. Culatta, A. Krings, Lilian P. Matallana-Ramirez, R. Whetten, A. Hessl, Andrew M. Liebhold, M. L. Leef

引用次数: 0

Life After Privet: Plant Community Dynamics in a Forested Wetland Following Removal of the Invasive Ligustrum sinense Lour 女贞树后的生活：移除入侵女贞后森林湿地的植物群落动态

IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.49

Michaella Ivey, L. Leege

{"title":"Life After Privet: Plant Community Dynamics in a Forested Wetland Following Removal of the Invasive Ligustrum sinense Lour","authors":"Michaella Ivey, L. Leege","doi":"10.2179/0008-7475.88.1.49","DOIUrl":"https://doi.org/10.2179/0008-7475.88.1.49","url":null,"abstract":"ABSTRACT Chinese privet (Ligustrum sinense) invasion has been found to reduce native species richness and abundance of both herbaceous and woody plants and is a serious threat to wetlands in the southeastern United States. To determine the relationship between privet removal and understory vegetation, we performed surveys on a forested wetland from which L. sinense had been partially removed over a two-year period. Plant community composition, vegetation cover and species richness as well as soil moisture and PAR were recorded in removal and control (Privet-Present) plots in herb, shrub and tree layers. As expected, herb-layer removal plots were wetter and less shady, with more than four times higher cover of native and non-native species. Total species richness and native species richness were both higher in herb-layer removal plots, though non-native species richness did not differ. Shrub-layer removal plots were much less dense, with 1/100 the basal area of shrubs than control plots. Tree-layer plots did not differ in any measure, suggesting that control and removal plot types were historically similar and continued to support comparable overstory vegetation. The composition of woody seedlings in the herb layer did not reflect the mature overstory in either plot type, although several of the most abundant woody seedlings were those of dominant wetland species. We conclude that immediately following L. sinense removal, native species outperform non-natives, both in cover and species richness in the herb layer. The poor recruitment of woody seedlings and saplings as well as the rapid invasion of invasive Japanese stiltgrass (Microstegium vimineum) may thwart restoration efforts, however. To ensure the wetland reaches its pre-invasion community structure, it may be necessary to plant native tree saplings and nurture them through the shrub layer to maturity.","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"88 1","pages":"49 - 60"},"PeriodicalIF":0.4,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44941593","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}

引用次数: 0

A Floristic Checklist of Shenandoah River State Park Warren Co., Virginia 谢南多厄河州立公园沃伦公司，弗吉尼亚州的植物清单

IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.138

Matthew L Sheik, A. Weeks

{"title":"A Floristic Checklist of Shenandoah River State Park Warren Co., Virginia","authors":"Matthew L Sheik, A. Weeks","doi":"10.2179/0008-7475.88.1.138","DOIUrl":"https://doi.org/10.2179/0008-7475.88.1.138","url":null,"abstract":"ABSTRACT A floristic checklist of vascular plants was conducted at Shenandoah River State Park (SHSP) in Bentonville, Virginia during the 2021 and 2022 growing seasons. SHSP encompasses 665 hectares (1619 acres) of the northern Shenandoah Valley between the Massanutten Mountains and Shenandoah National Park. The park lies in Warren County which has been botanically underexplored, consistently ranking last in plant collection metrics among the five northern Shenandoah Valley counties. SHSP contains 11 community types that span 165–296 meters above sea level from inland wetlands and river scour communities to upland forests, including endemic Central Appalachian Shale Barrens. A total of 797 collections yielded 536 unique taxa from 109 vascular plant families. These collections were secondarily extended with in-field pictures that were aggregated on an iNaturalist project page. Quick Response (QR) codes were used to link herbarium vouchers to their respective iNaturalist entry. Sixty-four county records of taxa not yet observed in Warren County and one state record, Equisetum laevigatum, were documented. As a first for SHSP, this floristic checklist provides baseline botanical knowledge of the park and expands the available digital data of vascular plants for Warren County by 20%. This augmented knowledge, in tandem with the accompanying iNaturalist project page, will not only be useful to park managers for future development and conservation plans but will also serve as a tool for community scientists to enhance their knowledge of the local flora.","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"88 1","pages":"138 - 154"},"PeriodicalIF":0.4,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43530208","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}

引用次数: 0

The Flora and Wildland–Urban Interface of Doe Mountain Recreation Area: Adjuncts to Conservation 多伊山游乐区的植物群和荒地-城市界面:保护的附属品

IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.111

B. A. McCullough, F. Levy

{"title":"The Flora and Wildland–Urban Interface of Doe Mountain Recreation Area: Adjuncts to Conservation","authors":"B. A. McCullough, F. Levy","doi":"10.2179/0008-7475.88.1.111","DOIUrl":"https://doi.org/10.2179/0008-7475.88.1.111","url":null,"abstract":"ABSTRACT An inventory of the botanical resources of Doe Mountain Recreation Area, comprising 3480 ha on the boundary of the Blue Ridge and Ridge and Valley ecoregions in extreme northeastern Tennessee, was conducted to help guide conservation-based management. A total of 486 species (including subspecies and varieties) was found comprising 95 families, 286 genera, 11 species tracked on the state rare plant list, 153 county records, and 77 exotic species. The relatively high ratio of county records to exotics indicated an area of conservation merit, but the ratio was lower than in floras from comparable areas in eastern Tennessee. The vast majority of county records were of common species, suggestive of an under-collected county. However, some of the noteworthy county records and state-listed species were from unusual habitats such as acid seeps, wetlands, and xeric ridges. Two species, Liatris virgata and Lycopodiella inundata, were new to the state. Water in the seep that supports L. inundata was an order of magnitude more acidic (pH=3.56) than at other sites. An analysis of the wildland–urban interface showed that the periphery of the site had more human impact than the county as a whole with the highest impact on the northern half; only 13% of the area was classified as uninhabited. Management recommendations, some of which were already adopted, targeted protection of acid seeps and xeric roadside slopes, curtailing mowing and herbicide use near a wetland that supports a state endangered species, and reconnaissance for exotic invasions in a biodiverse power line corridor.","PeriodicalId":50984,"journal":{"name":"Castanea","volume":"88 1","pages":"111 - 137"},"PeriodicalIF":0.4,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45460607","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}

引用次数: 0

Scientific Note: A Resurvey of Rhododendron eastmanii (Ericaceae) Populations in the Sumter National Forest, South Carolina 科学笔记：南卡罗来纳州萨姆特国家森林中东花杜鹃（杜鹃科）种群的重新调查

IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.37

C. Horn

引用次数: 0

Noteworthy Collections: Maryland and Virginia 值得注意的收藏:马里兰州和弗吉尼亚州

IF 0.4 4区生物学

Castanea Pub Date : 2023-07-04 DOI: 10.2179/0008-7475.88.1.61

Robert A.S. Wright, R. H. Simmons, J. Parrish, Michael Ellis

引用次数: 0

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