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Artículos de revistas sobre el tema "Assateague Island"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 1 de febrero de 2022

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1

Johnson, Joshua B. y J. Edward Gates. "Bats of Assateague Island National Seashore, Maryland". American Midland Naturalist 160, n.º 1 (julio de 2008): 160–70. http://dx.doi.org/10.1674/0003-0031(2008)160[160:boains]2.0.co;2.

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2

Stalter, Richard y Eric E. Lamont. "The Vascular Flora of Assateague Island, Virginia". Bulletin of the Torrey Botanical Club 117, n.º 1 (enero de 1990): 48. http://dx.doi.org/10.2307/2997128.

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3

Patterson, Michael E., James D. Fraser y Joseph W. Roggenbuck. "Factors Affecting Piping Plover Productivity on Assateague Island". Journal of Wildlife Management 55, n.º 3 (julio de 1991): 525. http://dx.doi.org/10.2307/3808985.

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4

Leatherman, Stephen P. "Storm-Generated Overwash Processes at Assateague Island, Maryland". Journal of Coastal Research 101, sp1 (26 de agosto de 2020): 48. http://dx.doi.org/10.2112/jcr-si101-011.1.

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5

RUDMAN, REBECCA y R. R. KEIPER. "The body condition of feral ponies on Assateague island". Equine Veterinary Journal 23, n.º 6 (noviembre de 1991): 453–56. http://dx.doi.org/10.1111/j.2042-3306.1991.tb03760.x.

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6

Brock, John C., William B. Krabill y Asbury H. Sallenger. "Barrier Island Morphodynamic Classification Based on Lidar Metrics for North Assateague Island, Maryland". Journal of Coastal Research 202 (abril de 2004): 498–509. http://dx.doi.org/10.2112/1551-5036(2004)020[0498:bimcbo]2.0.co;2.

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7

Sullivan, Kristin. "Exploring Traditional Use and Association Through the Ethnographic Overview and Assessment for Assateague Island National Seashore". Practicing Anthropology 34, n.º 3 (29 de junio de 2012): 44–46. http://dx.doi.org/10.17730/praa.34.3.d953g6x8qx26812m.

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Assateague, a dynamic barrier island extending from just south of Ocean City, Maryland, to the northern portions of Virginia's eastern shore, was added to the National Park Service (NPS) system in 1965 (Mackintosh 1982) and now draws roughly 2 million visitors per year (Bentley 2008). Prior to the Seashore's establishment, however, the island and its environs drew a range of people from fishermen to land developers. While today's Eastern Shore communities continue many of their traditional lifeways related to the island, they now share its resources with tourists from around the world who are drawn to the seeming pristine beaches and famed wild ponies, managed today by two federal agencies (NPS and United States Fish and Wildlife Service [USFWS]).

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8

Houser, Chris, Brian Labude, Lars Haider y Bradley Weymer. "Impacts of driving on the beach: Case studies from Assateague Island and Padre Island National Seashores". Ocean & Coastal Management 71 (enero de 2013): 33–45. http://dx.doi.org/10.1016/j.ocecoaman.2012.09.012.

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9

Schupp, Courtney A., Neil T. Winn, Tami L. Pearl, John P. Kumer, Tim J. B. Carruthers y Carl S. Zimmerman. "Restoration of overwash processes creates piping plover (Charadrius melodus) habitat on a barrier island (Assateague Island, Maryland)". Estuarine, Coastal and Shelf Science 116 (enero de 2013): 11–20. http://dx.doi.org/10.1016/j.ecss.2012.07.003.

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10

Grybas, Heather y Russell Congalton. "Land Cover Change Image Analysis for Assateague Island National Seashore Following Hurricane Sandy". Journal of Imaging 1, n.º 1 (5 de octubre de 2015): 85–114. http://dx.doi.org/10.3390/jimaging1010085.

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11

Campbell, Anthony y Yeqiao Wang. "Assessment of Salt Marsh Change on Assateague Island National Seashore Between 1962 and 2016". Photogrammetric Engineering & Remote Sensing 86, n.º 3 (1 de marzo de 2020): 187–94. http://dx.doi.org/10.14358/pers.86.3.187.

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Salt marshes provide extensive ecosystem services, including high biodiversity, denitrification, and wave attenuation. In the mid-Atlantic, sea level rise is predicted to affect salt marsh ecosystems severely. This study mapped the entirety of Assateague Island with Very High Resolution satellite imagery and object-based methods to determine an accurate salt marsh baseline for change analysis. Topobathy-metric light detection and ranging was used to map the salt marsh and model expected tidal effects. The satellite imagery, collected in 2016 and classified at two hierarchical thematic schemes, were compared to determine appropriate thematic richness. Change analysis between this 2016 map and both a manually delineated 1962 salt marsh extent and image classification of the island from 1994 determined rates off change. The study found that from 1962 to 1994, salt marsh expanded by 4.01 ha/year, and from 1994 to 2016 salt marsh was lost at a rate of -3.4 ha/ year. The study found that salt marsh composition, (percent vegetated salt marsh) was significantly influenced by elevation, the length of mosquito ditches, and starting salt marsh composition. The study illustrates the importance of remote sensing monitoring for understanding site-specific changes to salt marsh environments and the barrier island system.

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12

Lendemer, James C. "Two New Sterile Species of Loxospora (Sarrameanaceae: Lichenized Ascomycetes) from the Mid-Atlantic Coastal Plain". Journal of North Carolina Academy of Science 129, n.º 3 (1 de septiembre de 2013): 71–81. http://dx.doi.org/10.7572/2167-5880-129.3.71.

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Abstract Molecular phylogenetic analyses of mtSSU and nrITS sequence data show that two new crustose species belong to the genus Loxospora. Both species are sterile asexually reproducing crustose lichens from the Mid-Atlantic Coastal Plain of eastern North America, and are chemically similar to L. lecanoriformis in producing 2-0-methylperlatolic acid. Loxosopora assateaguensis is a sorediate species that is described from a single locality on Assateague Island in Maryland. Loxospora confusa is a granulose-isidiate species that is widespread in the Mid-Atlantic with a disjunct population in the Joccassee Gorges of the southern Appalachian Mountains.

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13

Eggert, Lori S., David M. Powell, Jonathan D. Ballou, Aurelio F. Malo, Allison Turner, Jack Kumer, Carl Zimmerman, Robert C. Fleischer y Jesús E. Maldonado. "Pedigrees and the Study of the Wild Horse Population of Assateague Island National Seashore". Journal of Wildlife Management 74, n.º 5 (julio de 2010): 963–73. http://dx.doi.org/10.2193/2009-231.

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14

Churchill, John B., Petra B. Wood y David F. Brinker. "DIURNAL ROOST SITE CHARACTERISTICS OF NORTHERN SAW-WHET OWLS WINTERING AT ASSATEAGUE ISLAND, MARYLAND". Wilson Bulletin 112, n.º 3 (septiembre de 2000): 332–36. http://dx.doi.org/10.1676/0043-5643(2000)112[0332:drscon]2.0.co;2.

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15

Ballou, Jonathan D., Kathy Traylor-Holzer, Allison Turner, Aurelio F. Malo, David Powell, Jesus Maldonado y Lori Eggert. "Simulation model for contraceptive management of the Assateague Island feral horse population using individual-based data". Wildlife Research 35, n.º 6 (2008): 502. http://dx.doi.org/10.1071/wr07124.

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The National Park Service (NPS) manages a culturally significant population of feral horses (Equus caballus) inhabiting the Maryland portion of Assateague Island, a barrier island in the eastern United States. Rapid growth of this population over the past few decades from 28 to 166 horses negatively impacts native species and ecological processes on the island. Since 1994, contraception via porcine zona pellucida vaccine has been used to control horse numbers, although herd reduction has been slower than initially expected, leading NPS to consider other management options. An individual-based stochastic simulation model was developed using the Vortex software program to examine the effects of different management strategies on the population. Data from the managed population were used to populate the model parameters. Model projections over the next 50 years using current management practices show an average rate of population decline of 13% per year, suggesting that the population will reach the management target of 80–100 horses in 5–8 years. The effectiveness of contraception to reduce the herd and maintain it at various target sizes of 20–100 horses was also assessed. The accumulation of inbreeding at each target population size was also modelled.

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16

Ellis, Alisha M., Jaimie E. Shaw, Lisa E. Osterman y Christopher G. ,. Smith. "The Foraminifera of Chincoteague Bay, Assateague Island, and the Surrounding Areas: a Regional Distribution Study". Journal of Foraminiferal Research 48, n.º 3 (2 de julio de 2018): 223–40. http://dx.doi.org/10.2113/gsjfr.48.3.223.

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Abstract Foraminiferal census data from Chincoteague Bay, Newport Bay, the salt marshes of Assateague Island, adjacent mainland salt marshes, and the inner-shelf, were assessed to determine the current assemblages in Chincoteague Bay, and how the different environments surrounding the bay, and the gradients within the bay, influence the microfossil distribution. Determining the current background distribution and its drivers allows for future comparisons to determine paleoenvironmental conditions, impacts from natural and anthropogenic pollution, and the influence of climate change. Foraminiferal census data were compared to sedimentological characteristics and environmental parameters, exhibiting strong correlations with salinity, sediment organic content, and grain-size. Foraminiferal distributions exhibited a gradient from an assemblage dominated by Elphidium cf. E. excavatum near Chincoteague inlet to an assemblage dominated by Ammonia parkinsoniana and Ammobaculites cf. Ab. exiguus in the more restricted central and northern portions of the bay. The sites closest to the mouth of Trappe Creek in Newport Bay, along the western side of Chincoteague Bay and in the central bay, had a greater relative abundance of dead agglutinated taxa compared with the majority of sites in Chincoteague Bay. Despite the overwhelming dominance of calcareous taxa throughout the bay, dissolution may affect the preservation potential of Cribroelphidium poeyanum and Haynesina germanica in the northern and central portions of Chincoteague Bay, as indicated by seasonal pH data. Similarly, the sandy back-barrier lagoonal sites exhibited relatively low densities, potentially a result of dissolution or mechanical destruction.

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17

Williams, H. F. L. "Contrasting styles of Hurricane Irene washover sedimentation on three east coast barrier islands: Cape Lookout, North Carolina; Assateague Island, Virginia; and Fire Island, New York". Geomorphology 231 (febrero de 2015): 182–92. http://dx.doi.org/10.1016/j.geomorph.2014.11.027.

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18

CHURCHILL, JOHN B., PETRA BOHALL WOOD y DAVID F. BRINKER. "WINTER HOME RANGE AND HABITAT USE OF FEMALE NORTHERN SAW-WHET OWLS ON ASSATEAGUE ISLAND, MARYLAND". Wilson Bulletin 114, n.º 3 (septiembre de 2002): 309–13. http://dx.doi.org/10.1676/0043-5643(2002)114[0309:whrahu]2.0.co;2.

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19

Oliver, James H., Louis A. Magnarelli, H. Joel Hutcheson y John F. Anderson. "Ticks and Antibodies toBorrelia burgdorferifrom Mammals at Cape Hatteras, NC and Assateague Island, MD and VA". Journal of Medical Entomology 36, n.º 5 (1 de septiembre de 1999): 578–87. http://dx.doi.org/10.1093/jmedent/36.5.578.

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20

Zaremba, Nicholas J., Christopher G. Smith, Julie C. Bernier y Arnell S. Forde. "Application of Ground Penetrating Radar for Identification of Washover Deposits and Other Stratigraphic Features: Assateague Island, MD". Journal of Environmental & Engineering Geophysics 21, n.º 4 (diciembre de 2016): 173–86. http://dx.doi.org/10.2113/jeeg21.4.173.

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21

Breen, Daniel B., Stephen D. Bailey y Helen A. Violi. "Managing Remnant and Reemerging Common Reed (Phragmites australis) Infestations to Improve Treatment Efficacy and Mitigate Damage to Native Plants". Invasive Plant Science and Management 7, n.º 3 (septiembre de 2014): 445–53. http://dx.doi.org/10.1614/ipsm-d-14-00009.1.

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AbstractFollowing large-scale herbicide spraying and burning on Assateague Island, a barrier bar island located in Maryland and Virginia, the invasive common reed (Phragmites australis) was largely reduced from vast monocultures to less dense patches interspersed within maritime shrublands. To improve the control of these remnant/reemerging infestations and limit further nontarget damage, we tested three new treatments: mechanical cutting followed by dripping imazapyr onto stems, cutting followed 2 wk later by the foliar spraying of regrowth, and simple cutting with and without the removal of Phragmites litter. All herbicide treatments and cutting paired with litter removal significantly reduced Phragmites coverage (P ≤ 0.01) when compared with untreated controls. Native plant coverage was significantly greater after the cut-stem treatment than after traditional foliar spraying (P ≤ 0.01) because of the former's reduced herbicide use and more direct contact limited to Phragmites stems; native coverage was also greater after litter removal than when litter remained (P ≤ 0.001). Cutting followed by stem applications of herbicide is an effective means of treating scattered common reed stands in sensitive habitats, and litter removal after cutting can provide native vegetation with an advantage at recolonization.

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22

Zhou, Guoqing y Ming Xie. "Coastal 3-D Morphological Change Analysis Using LiDAR Series Data: A Case Study of Assateague Island National Seashore". Journal of Coastal Research 252 (marzo de 2009): 435–47. http://dx.doi.org/10.2112/07-0985.1.

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23

Rentz, Elizabeth y Dana L. Price. "Species Diversity and Succession of Dung Beetles (Coleoptera: Geotrupidae and Scarabaeidae) Attracted to Horse Dung on Assateague Island". Coleopterists Bulletin 70, n.º 1 (marzo de 2016): 95–104. http://dx.doi.org/10.1649/072.070.0113.

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24

Seminack, C. T. y I. V. Buynevich. "Sedimentological and Geophysical Signatures of A Relict Tidal Inlet Complex Along A Wave-Dominated Barrier: Assateague Island, Maryland, U.S.A". Journal of Sedimentary Research 83, n.º 2 (11 de febrero de 2013): 132–44. http://dx.doi.org/10.2110/jsr.2013.10.

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25

Seminack, Christopher T. y Randolph A. McBride. "New Perspectives On the Geomorphic, Sedimentologic, and Stratigraphic Signatures of Former Wave-dominated Tidal Inlets: Assateague Island, Maryland, U.S.A." Journal of Sedimentary Research 89, n.º 4 (18 de abril de 2019): 312–34. http://dx.doi.org/10.2110/jsr.2019.14.

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26

Powell, David M. "Female–female competition or male mate choice? Patterns of courtship and breeding behavior among feral horses (Equus caballus) on Assateague Island". Journal of Ethology 26, n.º 1 (17 de mayo de 2007): 137–44. http://dx.doi.org/10.1007/s10164-007-0043-2.

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27

Trembanis, Arthur, Alimjan Abla, Ken Haulsee y Carter DuVal. "Benthic Habitat Morphodynamics-Using Remote Sensing to Quantify Storm-Induced Changes in Nearshore Bathymetry and Surface Sediment Texture at Assateague National Seashore". Journal of Marine Science and Engineering 7, n.º 10 (18 de octubre de 2019): 371. http://dx.doi.org/10.3390/jmse7100371.

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This study utilizes repeated geoacoustic mapping to quantify the morphodynamic response of the nearshore to storm-induced changes. The aim of this study was to quantitatively map the nearshore zone of Assateague Island National Seashore (ASIS) to determine what changes in bottom geomorphology and benthic habitats are attributable to storm events including hurricane Sandy and the passage of hurricane Joaquin. Specifically, (1) the entire domain of the National Parks Service offshore area was mapped with side-scan sonar and multibeam bathymetry at a resolution comparable to that of the existing pre-storm survey, (2) a subset of the benthic stations were resampled that represented all sediment strata previously identified, and (3) newly obtained data were compared to that from the pre-storm survey to determined changes that could be attributed to specific storms such as Sandy and Joaquin. Capturing event specific dynamics requires rapid response surveys in close temporal association of the before and after period. The time-lapse between the pre-storm surveys for Sandy and our study meant that only a time and storm integrated signature for that storm could be obtained whereas with hurricane Joaquin we could identify impacts to the habitat type and geomorphology more directly related to that particular storm. This storm impacts study provides for the National Park Service direct documentation of storm-related changes in sediments and marine habitats on multiple scales: From large scale, side-scan sonar maps and interpretation of acoustic bottom types, to characterize as fully as possible habitats from 1 to 10 m up to many kilometer scales, as well as from point benthic samples within each sediment stratum and these results can help guide management of the island resources.

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28

LaMotte, A. E. y E. A. Greene. "Spatial analysis of land use and shallow groundwater vulnerability in the watershed adjacent to Assateague Island National Seashore, Maryland and Virginia, USA". Environmental Geology 52, n.º 7 (6 de diciembre de 2006): 1413–21. http://dx.doi.org/10.1007/s00254-006-0583-8.

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29

Pendleton, Elizabeth A., Laura L. Brothers, E. Robert Thieler y Edward M. Sweeney. "Sand ridge morphology and bedform migration patterns derived from bathymetry and backscatter on the inner-continental shelf offshore of Assateague Island, USA". Continental Shelf Research 144 (julio de 2017): 80–97. http://dx.doi.org/10.1016/j.csr.2017.06.021.

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30

Kirkpatrick, Jay F. y Allison Turner. "Achieving population goals in a long-lived wildlife species (Equus caballus) with contraception". Wildlife Research 35, n.º 6 (2008): 513. http://dx.doi.org/10.1071/wr07106.

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The ultimate goal of any wildlife contraceptive effort is some alteration of the target population, either through a slowing of growth, or stabilisation or reduction of the population. Early population models suggested that short-term contraceptive agents applied to long-lived species would not achieve significant population changes. Native porcine zona pellucida antigen (PZP), a short-term contraceptive vaccine, was applied to a herd of wild horses inhabiting Assateague Island National Seashore, MD, USA, over a 13-year period, with an immediate goal of achieving zero population growth, a secondary goal of reducing the population from 175 to 150 and a tertiary goal of reaching 120 individuals, all without the physical removal of animals. Contraceptive efficacy ranged from 92 to 100% on an annual basis (96.28 ± 2.49%), and the percentage of adult females that was treated on any given year ranged from 42 to 76% (67.78 ± 18.21%). The goal of zero population growth was achieved in 2 years, an initial decline in the population became apparent in 8 years and by Year 11, the population declined to 135, a decrease of 22.8%. The lengthy period required for achieving a population decline was caused by increasing body condition scores, reduced mortality and significantly increased longevity among treated females.

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31

Elfadul, Rehab, Roman Jesien, Ahmed Elnabawi, Paulinus Chigbu y Ali Ishaque. "Analysis of Estrogenic Activity in Maryland Coastal Bays Using the MCF-7 Cell Proliferation Assay". International Journal of Environmental Research and Public Health 18, n.º 12 (9 de junio de 2021): 6254. http://dx.doi.org/10.3390/ijerph18126254.

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Contaminants of Emerging Concern (CECs) with estrogenic or estrogenic-like activity have been increasingly detected in aquatic environments and have been an issue of global concern due to their potential negative effects on wildlife and human health. This study used the MCF-7 cell proliferation assay (E-Screen) to assess the estrogenic activity profiles in Maryland Coastal Bays (MCBs), a eutrophic system of estuaries impacted by human activities. Estrogenic activity was observed in all study sites tested. Water samples from MCBs increased MCF-7 cell proliferation above the negative control from 2.1-fold at site 8, located in Sinepuxent Bay close to the Ocean City Inlet, to 6.3-fold at site 6, located in Newport Bay. The proliferative effects of the sediment samples over the negative control ranged from 1.9-fold at the Assateague Island National Seashore site to 7.7-fold at the Public Landing site. Moreover, elevated cell proliferation (p < 0.05) was observed when cells were co-exposed with 17ß-Estradiol (E2), while reduction in cell proliferation was observed when cells were co-exposed with the antagonist ICI 182, 780 suggesting that cell proliferative effects were primarily mediated by the estrogen receptor (ER). These results suggest the occurrence of some estrogenic or hormonal-like compounds in the MCBs and are consistent with our previous findings based on vitellogenin analyses.

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32

De Stoppelaire, Georgia H., Thomas W. Gillespie, John C. Brock y Graham A. Tobin. "Use of Remote Sensing Techniques to Determine the Effects of Grazing on Vegetation Cover and Dune Elevation at Assateague Island National Seashore: Impact of Horses". Environmental Management 34, n.º 5 (25 de octubre de 2004): 642–49. http://dx.doi.org/10.1007/s00267-004-0009-x.

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33

Lambert, Mary S., Gulnihal Ozbay y Gary P. Richards. "Seawater and Shellfish (Geukensia demissa) Quality Along the Western Coast of Assateague Island National Seashore, Maryland: An Area Impacted by Feral Horses and Agricultural Runoff". Archives of Environmental Contamination and Toxicology 57, n.º 2 (9 de enero de 2009): 405–15. http://dx.doi.org/10.1007/s00244-008-9277-4.

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34

Goldstein, Evan B., Elsemarie V. Mullins, Laura J. Moore, Reuben G. Biel, Joseph K. Brown, Sally D. Hacker, Katya R. Jay, Rebecca S. Mostow, Peter Ruggiero y Julie C. Zinnert. "Literature-based latitudinal distribution and possible range shifts of two US east coast dune grass species (Uniola paniculataandAmmophila breviligulata)". PeerJ 6 (8 de junio de 2018): e4932. http://dx.doi.org/10.7717/peerj.4932.

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Previous work on the US Atlantic coast has generally shown that coastal foredunes are dominated by two dune grass species,Ammophila breviligulata(American beachgrass) andUniola paniculata(sea oats). From Virginia northward,A. breviligulatadominates, whileU. paniculatais the dominant grass south of Virginia. Previous work suggests that these grasses influence the shape of coastal foredunes in species-specific ways, and that they respond differently to environmental stressors; thus, it is important to know which species dominates a given dune system. The range boundaries of these two species remains unclear given the lack of comprehensive surveys. In an attempt to determine these boundaries, we conducted a literature survey of 98 studies that either stated the range limits and/or included field-based studies/observations of the two grass species. We then produced an interactive map that summarizes the locations of the surveyed papers and books. The literature review suggests that the current southern range limit forA. breviligulatais Cape Fear, NC, and the northern range limit forU. paniculatais Assateague Island, on the Maryland and Virginia border. Our data suggest a northward expansion ofU. paniculata,possibly associated with warming trends observed near the northern range limit in Painter, VA. In contrast, the data regarding a range shift forA. breviligulataremain inconclusive. We also compare our literature-based map with geolocated records from the Global Biodiversity Information Facility and iNaturalist research grade crowd-sourced observations. We intend for our literature-based map to aid coastal researchers who are interested in the dynamics of these two species and the potential for their ranges to shift as a result of climate change.

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35

Britton, Jennifer L. y Christian Hunold. "Bordering Processes and Pony Wildness on Assateague Island". Society & Animals, 30 de marzo de 2021, 1–20. http://dx.doi.org/10.1163/15685306-bja10042.

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Abstract This multispecies ethnography investigates how free-roaming ponies and humans participate in the production of “pony wildness” on Assateague Island, a barrier island located off the U.S. mid-Atlantic coast. The bordering practices of ponies intersect with the bordering practices of people to generate a relational conception of pony wildness that incorporates in people-pony relations a desire for intimacy with respect for autonomy, in a multifunctional landscape managed both as wilderness and as a beach tourism destination. This notion of pony wildness includes nonhuman charisma, fluidity, and managing human visitors. We conclude by discussing how the fluidity of pony wildness can help us think more imaginatively about other contexts in which communities of free-roaming nonhuman animals share space with human communities.

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36

McNamara, D. E. y B. T. Werner. "Coupled barrier island–resort model: 2. Tests and predictions along Ocean City and Assateague Island National Seashore, Maryland". Journal of Geophysical Research 113, F1 (8 de marzo de 2008). http://dx.doi.org/10.1029/2007jf000841.

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37

Goldstein, Deanna M., Julie B. Engiles, Grant B. Rezabek y Christopher B. Ruff. "Locomotion on the edge: Structural properties of the third metacarpal in Thoroughbred and Quarter Horse racehorses and feral Assateague Island ponies". Anatomical Record, 17 de agosto de 2020. http://dx.doi.org/10.1002/ar.24485.

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38

Jara, Manuel, Kevin Holcomb, Xuechun Wang, Erica M. Goss y Gustavo Machado. "The Potential Distribution of Pythium insidiosum in the Chincoteague National Wildlife Refuge, Virginia". Frontiers in Veterinary Science 8 (19 de febrero de 2021). http://dx.doi.org/10.3389/fvets.2021.640339.

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Pythium insidiosum is a widespread pathogen that causes pythiosis in mammals. Recent increase in cases reported in North America indicates a need to better understand the distribution and persistence of the pathogen in the environment. In this study, we reconstructed the distribution of P. insidiosum in the Chincoteague National Wildlife Refuge, located on Assateague Island, Virginia, and based on 136 environmental water samples collected between June and September of 2019. The Refuge hosts two grazing areas for horses, also known as the Chincoteague Ponies. In the past 3 years, 12 horses have succumbed to infection by P. insidiosum. Using an ecological niche model framework, we estimated and mapped suitable areas for P. insidiosum throughout the Refuge. We found P. insidiosum throughout much of the study area. Our results showed significant monthly variation in the predicted suitability, where the most influential environmental predictors were land-surface water and temperature. We found that June, July, and August were the months with the highest suitability for P. insidiosum across the Refuge, while December through March were less favorable months. Likewise, significant differences in suitability were observed between the two grazing areas. The suitability map provided here could also be used to make management decisions, such as monitoring horses for lesions during high risk months.

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McPherran, K., S. Dohner y A. Trembanis. "A comparison of the temporal evolution of hydrodynamics and inlet morphology during Tropical Storm Fay (2020)". Shore & Beach, 9 de junio de 2021, 11–22. http://dx.doi.org/10.34237/1008922.

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The record-setting North Atlantic hurricane season of 2020 had 30 named storms and reinforced the need for high-resolution, small-scale data collected in the nearshore zone during storm events to characterize storm impacts on coastal settings. To address these needs, hydrodynamic and morphologic data were collected during the 2020 Atlantic hurricane season, capturing fair weather conditions and the passage of Tropical Storm Fay (July 2020) near Chincoteague Inlet, Virginia. A sector-scanning rotary sonar captured high-resolution imagery of bedform evolution and data were analyzed to relate the migration of bedforms to the concomitant hydrodynamic conditions during the storm event. During the peak of the storm on 10 July 2020, significant wave height and period in Chincoteague Inlet were 0.96 m at 9.6 s arriving from the SSW (201°). The ripple field evolved during the storm in a manner consistent with that found in Hay and Mudge (2005): irregular ripples (O 20 cm wavelength) dominated during fair weather conditions, which developed into a washed-out, flat bed state as the storm arrived. During the peak of the storm, lunate megaripples (O 1 m wavelength) formed and migrated shoreward. A substantial outflow of freshwater from Chincoteague Bay occurred for up to seven days post-storm, and sediment transported by this outflow could serve as a yet-unidentified sediment source for the rapid growth of southern Assateague Island. This outflow of freshwater dampened waves and hindered ripple field recovery for up to seven days post-storm. These extreme event datasets are critical to inform coastal flood models and management decisions, as this work recognizes an increased risk of flooding for the town of Chincoteague from even the offshore passage of tropical storms.

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