{"title":"Celebrating Donald R. Farrar's Contribution to Botrychium Research: Introduction to an American Fern Journal Special Issue","authors":"Cindy L. Johnson","doi":"10.1640/0002-8444-114.1.1","DOIUrl":"https://doi.org/10.1640/0002-8444-114.1.1","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140091405","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}
{"title":"A New Diploid Moonwort, Botrychium rubellum (Ophioglossaceae), in the Lanceolatum Complex of the Genus Botrychium","authors":"M. C. Stensvold, Donald R. Farrar","doi":"10.1640/0002-8444-114.1.49","DOIUrl":"https://doi.org/10.1640/0002-8444-114.1.49","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140084329","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}
{"title":"Versatile Mating Systems and Mycorrhizal Associations Support the Remarkable Long-Time Evolutionary Success of the Early-Divergent Fern Genus Botrychium","authors":"Benjamin Dauphin, Jason Grant, Donald R. Farrar","doi":"10.1640/0002-8444-114.1.22","DOIUrl":"https://doi.org/10.1640/0002-8444-114.1.22","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140086374","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}
Arthur V. Gilman, Donald R. Farrar, M. C. Stensvold
{"title":"Botrychium onondagense (Ophioglossaceae), a Resurrected Species in the North American Botrychium lunaria Complex","authors":"Arthur V. Gilman, Donald R. Farrar, M. C. Stensvold","doi":"10.1640/0002-8444-114.1.57","DOIUrl":"https://doi.org/10.1640/0002-8444-114.1.57","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140092306","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}
Steve J. Popovich, Cindy L. Johnson, Donald R. Farrar
{"title":"Population Persistence of Botrychium (Ophioglossaceae) without Production of Aboveground Plants","authors":"Steve J. Popovich, Cindy L. Johnson, Donald R. Farrar","doi":"10.1640/0002-8444-114.1.84","DOIUrl":"https://doi.org/10.1640/0002-8444-114.1.84","url":null,"abstract":"","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140086063","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}
{"title":"Coexistence of Two Species of Bracken (Pteridium) in a Narrow Zone of Range Overlap","authors":"Jeffrey Derek Dosdall, Aaron S. David","doi":"10.1640/0002-8444-113.4.237","DOIUrl":"https://doi.org/10.1640/0002-8444-113.4.237","url":null,"abstract":"Abstract. Two closely related bracken (Pteridium) species, P. caudatum and P. aquilinum ssp. pseudocaudatum, have mostly separate ranges that overlap in Peninsular Florida. Congeneric species that occupy similar niches in distinct geographic ranges but whose native ranges narrowly overlap present an eco-evolutionary conundrum: How can species evolved to occupy similar niches in distinct ranges coexist? Research suggests that for a stable coexistence the species should differ at least subtly in their ecological niches, otherwise their coexistence would be unstable. We investigated whether these bracken species share a habitat and co-occur locally, and whether their coexistence is predicted to be stable. We surveyed bracken populations from seven sites at Archbold Biological Station (Venus, Florida, USA) and characterized their biotic and abiotic microhabitat. Both bracken species co-occur at three sites. The two species showed significantly different trends in canopy cover and in response to fire frequency, and they grew at different densities and biomass. These results suggest these two bracken species coexist stably by occupying distinct ecological niches.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139155325","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}
{"title":"Impacts of Invasive Earthworms on Early Life Stages of the Threatened American Hart's-Tongue Fern","authors":"A. Bowe, Michael Serviss, B. Blossey, A. Dávalos","doi":"10.1640/0002-8444-113.4.217","DOIUrl":"https://doi.org/10.1640/0002-8444-113.4.217","url":null,"abstract":"Abstract. Conservation of rare ferns requires identification and management of drivers of species declines. Here we focus on potential threats of invasive earthworms introduced from Europe and Asia on the threatened American hart's-tongue fern (Asplenium scolopendrium var. americanum). Earthworms are ecosystem engineers that alter physical and chemical soil properties and can trigger cascading effects on plant and soil communities. Using a paired field sampling and mesocosm study approach, we sought to assess the potential impact of earthworms to A. scolopendrium. We sampled earthworms at eight A. scolopendrium populations in New York State and documented widespread occurrence of a diversity of invasive earthworms in seven fern populations. Fern populations exist mid-slope and earthworm biomass was higher upslope than within or downslope of fern populations. In a two-year mesocosm experiment we evaluated impacts of two epi-endogeic earthworms (Lumbricus rubellus and Metaphire hilgendorfi) on A. scolopendrium gametophytes and young sporophytes by adding earthworm treatments to potted plants and following growth and survival of fern transplants. While L. rubellus reduced gametophyte survival and number of leaves produced by transplanted ferns, we found no effect of M. hilgendorfi on survival, number of leaves or leaf size. Our findings indicate negative, but limited, impacts of one invasive earthworm species on fern early life stages. Our results suggest that impacts on existing fern populations could be low, as few earthworms were detected within fern populations. Continued assessment of earthworm invasions and other associated stressors is necessary to inform future management and conservation efforts to facilitate A. scolopendrium recovery.","PeriodicalId":50817,"journal":{"name":"American Fern Journal","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139156712","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}