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1

Blazer, VS, KT Young, GD Smith, AJ Sperry, and LR Iwanowicz. "Hyperpigmented melanistic skin lesions of smallmouth bass Micropterus dolomieu from the Chesapeake Bay watershed." Diseases of Aquatic Organisms 139 (June 4, 2020): 199–212. http://dx.doi.org/10.3354/dao03480.

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Hyperpigmented melanistic skin lesions (HPMLs) of smallmouth bass Micropterus dolomieu are observed in the Potomac and Susquehanna rivers, Chesapeake Bay watershed, USA. Routine, nonlethal population surveys were conducted at 8 sites on the mainstem Susquehanna River and 9 on the Juniata River, a tributary of the Susquehanna River, between 2012 and 2018, and the prevalence of HPMLs was documented. A total of 4078 smallmouth bass were collected from the mainstem Susquehanna River and 6478 from the Juniata River. Lesions were primarily seen in bass greater than 200 mm, and prevalence in the Susq
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2

Pomper, Kirk, Sheri Crabtree, and Desmond R. Layne. "(108) Early Flower Bud Production and Field Establishment of Two Pawpaw Cultivars on Five Seedling Rootstocks." HortScience 41, no. 4 (2006): 1039C—1039. http://dx.doi.org/10.21273/hortsci.41.4.1039c.

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The pawpaw [Asimina triloba (L.) Dunal] is native to the southeastern United States and has potential as a new tree fruit crop. Clonal rootstocks are not currently available for pawpaw cultivars; therefore, nurseries graft cultivars onto rootstock derived from locally available seed. Great variation in rootstock vigor with this seedstock can result in grafted trees that lack vigor and have delayed fruit production. Pawpaw rootstocks that promote precocity would be desirable to growers. The objectives of this study were to determine if rootstock source and pruning system influenced precocity an
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3

Fischer, Douglas P., Robert W. Criswell, Aaron M. Henning, Jack T. Test, and Jay R. Stauffer. "Status and Distribution of the Chesapeake Logperch Percina bimaculata Haldeman, 1844 in Pennsylvania." Water 16, no. 17 (2024): 2466. http://dx.doi.org/10.3390/w16172466.

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The Chesapeake Logperch, Percina bimaculata, is a small fish endemic to the upper Chesapeake Bay drainage with a range significantly reduced by water quality and habitat degradation. It was described by Haldeman in 1842 and 1844 from the Susquehanna River, Pennsylvania, synonymized with the Logperch (Percina caprodes) by Jordan in 1877, and redescribed by Near in 2008. It is extirpated from the Potomac River drainage and extant in a portion of its historic range within the Susquehanna River drainage of Pennsylvania and Maryland in the United States of America. We reviewed available historic fi
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4

Stauffer, Jay R., Jonathan A. Freedman, Douglas P. Fischer, and Robert W. Criswell. "Morphological Comparison of the Chesapeake Logperch Percina bimaculata with the Logperch Percina c. caprodes and Percina c. semifasciata in Pennsylvania." Fishes 8, no. 6 (2023): 288. http://dx.doi.org/10.3390/fishes8060288.

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The Chesapeake logperch, Percina bimaculata (Halderman) has a disjunct distribution when compared to other species in the subgenus Percina. Members of this subgenus in Pennsylvania include Percina caprodes caprodes (Rafinesque), Percina caprodes semifasciata (DeKay), and P. bimaculata. Historically the Chesapeake logperch was known only from the Susquehanna River and Potomac River basins. Its range is now restricted to the Susquehanna River below Holtwood Dam and upper Chesapeake Bay. It has been extirpated from the Potomac River and the type locality near Columbia, PA. Attempts are being made
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5

Sammons, D. J., and M. E. Sorrells. "Registration of ‘Susquehanna’ Wheat." Crop Science 30, no. 1 (1990): 235. http://dx.doi.org/10.2135/cropsci1990.0011183x003000010061x.

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6

Sturges. "Legends of the Susquehanna:." Pennsylvania History: A Journal of Mid-Atlantic Studies 82, no. 4 (2015): 489. http://dx.doi.org/10.5325/pennhistory.82.4.0489.

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7

Ostrander, Karen D. "A Challenge of Coordination: Blasting and Painting at the Conowingo Dam." CoatingsPro 22, no. 11 (2022): 46–51. https://doi.org/10.5006/cp2022_22_11-46.

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8

Lee, M., S. Malyshev, E. Shevliakova, P. C. D. Milly, and P. R. Jaffé. "Capturing interactions between nitrogen and hydrological cycles under historical climate and land use: Susquehanna watershed analysis with the GFDL land model LM3-TAN." Biogeosciences 11, no. 20 (2014): 5809–26. http://dx.doi.org/10.5194/bg-11-5809-2014.

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Abstract. We developed a process model LM3-TAN to assess the combined effects of direct human influences and climate change on terrestrial and aquatic nitrogen (TAN) cycling. The model was developed by expanding NOAA's Geophysical Fluid Dynamics Laboratory land model LM3V-N of coupled terrestrial carbon and nitrogen (C-N) cycling and including new N cycling processes and inputs such as a soil denitrification, point N sources to streams (i.e., sewage), and stream transport and microbial processes. Because the model integrates ecological, hydrological, and biogeochemical processes, it captures k
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9

Sawhney, P. S., G. H. Shah, and R. G. Roberts. "Containments for Limerick and Susquehanna Plants." Journal of Energy Engineering 111, no. 1 (1985): 40–61. http://dx.doi.org/10.1061/(asce)0733-9402(1985)111:1(40).

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10

Hartzell, Sean M., and Nicholas Macelko. "Range Expansion of the Invasive New Zealand Mudsnail (Potamopyrgus antipodarum) in the Susquehanna and Delaware River Basins of Pennsylvania." Journal of the Pennsylvania Academy of Science 96, no. 1 (2022): 36–45. http://dx.doi.org/10.5325/jpennacadscie.96.1.0036.

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Abstract New Zealand mudsnails (Potamopyrgus antipodarum; hereafter NZMs) are small (≤6 mm in length) freshwater snails that are considered an invasive species in North America. Invasions of NZMs are typified by high densities of snails, which may cause trophic disruptions by displacing native benthic macroinvertebrates. Although NZMs are previously known from several locations in Pennsylvania, we surveyed 24 streams in the lower/middle Susquehanna River basin and Delaware River basin that were not previously evaluated for the presence of NZMs. We detected three range expansions within the Sus
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11

Ludlum, David M. "The Famous Susquehanna Ice Bridge of 1852." Weatherwise 51, no. 1 (1998): 63. http://dx.doi.org/10.1080/00431672.1998.9926116.

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12

Pazzaglia, Frank J., and Thomas W. Gardner. "Fluvial terraces of the lower Susquehanna River." Geomorphology 8, no. 2-3 (1993): 83–113. http://dx.doi.org/10.1016/0169-555x(93)90031-v.

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13

Heuer, Mark A., and Zui Chih Lee. "Marcellus Shale Development and the Susquehanna River." Organization & Environment 27, no. 1 (2014): 25–42. http://dx.doi.org/10.1177/1086026613520510.

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14

Arway, John A., and Geoffrey Smith. "The Susquehanna River—A Fishery in Decline." Fisheries 38, no. 5 (2013): 235–36. http://dx.doi.org/10.1080/03632415.2013.785395.

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15

Pomper, Kirk W., and Sheri B. Crabtree. "(316) Development of Rootstocks to Promote Early Bearing in Pawpaw." HortScience 40, no. 4 (2005): 1027C—1027. http://dx.doi.org/10.21273/hortsci.40.4.1027c.

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The propagation of clonal rootstocks for the pawpaw [Asimina triloba (L.) Dunal] has been unsuccessful; therefore, nurseries currently graft cultivars onto rootstock derived from locally available seed of diverse genetic origin. Great variation in pawpaw scion growth and suckering is observed with this seedling rootstock and grafted trees are also slow to come into production, often producing fruit 5 to 6 years after planting. In an effort to develop superior seedling rootstocks for pawpaw cultivars, seedstock was evaluated from the cultivars PA-Golden (#1), Sunflower, Susquehanna, NC-1, K8-2,
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16

Lee, M., S. Malyshev, E. Shevliakova, and P. R. Jaffé. "Capturing interactions between nitrogen and hydrological cycles under historical climate and land use: Susquehanna watershed analysis with the GFDL Land Model LM3-TAN." Biogeosciences Discussions 11, no. 4 (2014): 5669–710. http://dx.doi.org/10.5194/bgd-11-5669-2014.

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Abstract. We developed a~process model LM3-TAN to assess the combined effects of direct human influences and climate change on Terrestrial and Aquatic Nitrogen (TAN) cycling. The model was developed by expanding NOAA's Geophysical Fluid Dynamics Laboratory land model LM3V-N of coupled terrestrial carbon and nitrogen (C-N) cycling and including new N cycling processes and inputs such as a~soil denitrification, point N sources to streams (i.e. sewage), and stream transport and microbial processes. Because the model integrates ecological, hydrological, and biogeochemical processes, it captures ke
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17

Guild, Katherine, Andrew Anthony, Michael Bilger, and Jack Holt. "Assessment of Passive and Active Macroinvertebrate Collection Methods in Adjacent Reaches on the Upper Main Stem of the Susquehanna River." Journal of the Pennsylvania Academy of Science 88, no. 1 (2014): 47–56. http://dx.doi.org/10.5325/jpennacadscie.88.1.0047.

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ABSTRACT Macroinvertebrates are functional indicators of stream health based upon their sensitivity to pollution. Our study utilized different passive and active benthic macroinvertebrate collection methods (D-net, Surber sampler, rock baskets, and Hester-Dendy multiplate samplers) during the summer and fall of 2012 and 2013. Collections were taken on both sides of the west channel in the west channel of the upper main stem of the Susquehanna River near Shamokin Dam, PA. Sampling sites each included seven locations, one for passive sampling and six longitudinal locations for active sampling. O
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18

Fleisher, P. Jay. "Evidence of An Ice-Dammed Lake and Laurentide Readvance Upper Susquehanna Valley, New York State." Journal of Geography and Geology 14, no. 2 (2022): 52. http://dx.doi.org/10.5539/jgg.v14n2p52.

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Landforms and well logs document a system of ice-contact and proglacial lakes in the upper Susquehanna valley during Laurentide Ice Sheet retreat from the Appalachian Plateau, central New York State.  Recessional moraines formed dams for all lakes, except a newly revealed “Ancestral Goodyear Lake” retained behind an ephemeral ice dam stranded at Colliersville.  A prominent dead-ice sink currently occupies the valley floor at the dam site
 
 Ancestral Goodyear Lake held a stable lake level at 1360 feet as represented by thick lake sediments perche
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19

Gardner, Thomas W., Ira D. Sasowsky, and Victor A. Schmidt. "Reversed-Polarity Glacial Sediments and Revised Glacial Chronology, West Branch Susquehanna River Valley, Central Pennsylvania." Quaternary Research 42, no. 2 (1994): 131–35. http://dx.doi.org/10.1006/qres.1994.1062.

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AbstractA new exposure of glacial and glaciolacustrine sediments at Antes Fort allows for revision of the chronology of pre-Wisconsinan glaciation in central Pennsylvania. Lacustrine sediments from a proglacial lake in the West Branch Susquehanna River valley have reversed remanent polarity with a site mean paleomagnetic declination of 193.8° and inclination of -13.1°. The magnetization is probably a true detrital remanence from the time of deposition and is not significantly affected by postdepositional diagenesis. We propose that the Antes Fort till was deposited during either pre-Illinoian
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20

King,, N. R., M. E. McTammany, M. J. Wilson, J. C. Chakany, H. N. Coffin, and M. E. Reilly. "Variability in Macroinvertebrate Communities of the Susquehanna River in Central Pennsylvania†." Journal of the Pennsylvania Academy of Science 88, no. 1 (2014): 67–75. http://dx.doi.org/10.5325/jpennacadscie.88.1.0067.

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ABSTRACT Aquatic habitats vary widely in physical, chemical, and biological factors that can directly influence macroinvertebrate communities. Large rivers are spatially heterogeneous ecosystems with habitats affected by proximity to river banks, channel morphology, tributary confluences and human activities. Yet, large rivers remain largely understudied and are generally sampled in easily accessible near-bank areas, leaving macroinvertebrate communities undocumented from deeper, faster flowing mid-channel habitats. Our goals were to document variability in macroinvertebrate community structur
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21

Jackson, John K., Bernard W. Sweeney, Thomas L. Bott, J. Denis Newbold, and Louis A. Kaplan. "Transport of Bacillus thuringiensis var. israelensis and Its Effect on Drift and Benthic Densities of Nontarget Macroinvertebrates in the Susquehanna River, Northern Pennsylvania." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 2 (1994): 295–314. http://dx.doi.org/10.1139/f94-031.

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The microbial pesticide Bacillus thuringiensis var. israelensis (B.t.i.) was applied aerially to suppress larval black fly populations in the Susquehanna River, Pennsylvania. We quantified (1) the passage and retention of B.t.i. spores through a 1.5-km reach and (2) changes in black fly and nontarget macroinvertebrate abundances in the drift and benthos. B.t.i. exposure in the treatment riffle was 1.16 × 105 min-spores/mL or 16 min-mg/L in 1989 and 5.20 × 104 min-spores/mL or 4.4 min-mg/L in 1990. Retention of B.t.i. within the reach was low. While black fly drift from the treatment riffle inc
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22

Marsh, Ben. "Living by the Symbolic River: Landscape Effects of Post-Industrial Water Narratives of the Susquehanna River." Land 12, no. 2 (2023): 264. http://dx.doi.org/10.3390/land12020264.

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This paper examines ways in which human values toward surface water, especially large rivers, are relevant to land-use decisions in the watersheds. The study’s focus is the symbolic riverscape constructed by residents local to the Susquehanna River at the confluence of its branches in central Pennsylvania. The main analytical tool is the cultural landscape, a conceptualization of the ways in which alteration of the physical world is the product of human value systems. The paper traces the symbolic weights apparent in discourses about the Susquehanna River with regard to environmental use and a
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23

Wieder, H. W. “Skip.” "The Susquehanna River Heartland Coalition for Environmental Studies (SRHCES)." Journal of the Pennsylvania Academy of Science 88, no. 1 (2014): 1. http://dx.doi.org/10.5325/jpennacadscie.88.1.0001.

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24

Jebsen, Eric R. "Conceptual containment venting strategy for Susquehanna steam electric station." Reliability Engineering & System Safety 63, no. 3 (1999): 257–65. http://dx.doi.org/10.1016/s0951-8320(98)00041-6.

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25

Horan, Richard D., James S. Shortle, and David G. Abler. "Point-nonpoint nutrient trading in the Susquehanna River basin." Water Resources Research 38, no. 5 (2002): 8–1. http://dx.doi.org/10.1029/2001wr000853.

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26

Green, Brandn, and Kristal Jones. "Place and Large Landscape Conservation along the Susquehanna River." Society & Natural Resources 31, no. 2 (2017): 183–99. http://dx.doi.org/10.1080/08941920.2017.1364817.

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27

Zhang, Zhenxing, Andrew D. Dehoff, Robert D. Pody, and John W. Balay. "Detection of Streamflow Change in the Susquehanna River Basin." Water Resources Management 24, no. 10 (2009): 1947–64. http://dx.doi.org/10.1007/s11269-009-9532-0.

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28

Fisher, J. W., J. E. Bower, A. E. Serag, and M. C. Irwin. "Improving the performance of Amtrak's 95-year-old Susquehanna River Bridge (Ertüchtigungsmaßnahmen an der 95 Jahre alten Amtrak-Brücke über den Susquehanna)." Stahlbau 71, no. 2 (2002): 125–33. http://dx.doi.org/10.1002/stab.200200370.

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29

Minderhout, David J. "Native Americans in the Susquehanna River Valley: An Archaeological Summary." Journal of the Pennsylvania Academy of Science 88, no. 1 (2014): 28–39. http://dx.doi.org/10.5325/jpennacadscie.88.1.0028.

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ABSTRACT Native Americans have lived in the Susquehanna River Valley for at least 10,000 years. Archaeological research along the banks of the river has discovered a rich prehistory stretching from the Paleoindian era through the Archaic and Woodland periods up to and through early contact with Europeans. This paper summarizes the major environmental changes that affected the cultural evolution of Native Americans over this long time span and the technological innovations that occurred. Because the same areas in which Native Americans made their camps or villages have also been desirable areas
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30

McMillin, Linda A. "The Susquehanna Children's Center: An Example of University-Community Cooperation." History Teacher 29, no. 4 (1996): 492. http://dx.doi.org/10.2307/494800.

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31

Heicher, David. "Susquehanna River Basin Commission research related to natural gas development." Environmental Geosciences 18, no. 4 (2011): 213–15. http://dx.doi.org/10.1306/eg.09211111010.

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32

Engel, Scott A., Thomas W. Gardner, and Edward J. Ciolkosz. "Quaternary soil chronosequences on terraces of the Susquehanna river, Pennsylvania." Geomorphology 17, no. 4 (1996): 273–94. http://dx.doi.org/10.1016/0169-555x(96)00005-0.

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33

Kraatz, S., R. Khanbilvardi, and P. Romanov. "River ice monitoring with MODIS: Application over Lower Susquehanna River." Cold Regions Science and Technology 131 (November 2016): 116–28. http://dx.doi.org/10.1016/j.coldregions.2016.09.012.

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34

Beighley, R. Edward, Dennis L. Johnson, and Arthur C. Miller. "Subsurface Response Model for Storm Events within Susquehanna River Basin." Journal of Hydrologic Engineering 7, no. 2 (2002): 185–91. http://dx.doi.org/10.1061/(asce)1084-0699(2002)7:2(185).

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35

Brown, Matthew R., and Carlos A. Iudica. "Bioaccumulation of Methylmercury in Neovison vison (Schreber, 1777) Populations of the Susquehanna River Valley." Journal of the Pennsylvania Academy of Science 88, no. 1 (2014): 13–19. http://dx.doi.org/10.5325/jpennacadscie.88.1.0013.

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ABSTRACT Being the longest non-navigable river on the eastern coast of the United States, the Susquehanna River and the surrounding areas support a vast number of plants, animals, and other organisms, creating a vast and complex food web within a large and biodiverse ecosystem. One of the most prominent and essential organisms within this food web is the American mink (Neovison vison). In recent years, studies have been conducted to determine the level of biomagnification of methylmercury in terrestrial organisms that reside at higher trophic levels. This particular study has found that Americ
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36

Wnuk, Robert T. "Factors Influencing Walleye (Sander vitreus) Year Class Strength in the Upper Susquehanna River." Journal of the Pennsylvania Academy of Science 88, no. 1 (2014): 20–27. http://dx.doi.org/10.5325/jpennacadscie.88.1.0020.

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ABSTRACT Age-0 Walleye were monitored in the upper Susquehanna River from 1995 through 2010. I used these data to examine factors that influenced year class strength and to construct a predictive model. Mean river flow in May demonstrated the strongest relationship with year class strength (r2 = 0.57). A model consisting of May flow, June flow, and July air temperature explained 86.7% of the variation in the data from 1995 through 2006. This model successfully predicted Walleye year class strength for data from 2007 through 2010 (mean prediction error = 13.1/hr).
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37

Carpentier, C. L., D. J. Bosch, and S. S. Batie. "Using Spatial Information to Reduce Costs of Controlling Agricultural Nonpoint Source Pollution." Agricultural and Resource Economics Review 27, no. 1 (1998): 72–84. http://dx.doi.org/10.1017/s1068280500001714.

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Reducing costs of controlling nonpoint source (NPS) pollution will be a high public priority in the next century. Compliance and transaction costs of reducing nitrogen runoff from dairies in the Lower Susquehanna Watershed by 40% are estimated for perfectly targeted and uniform performance standards. The perfectly targeted standard reduces compliance and transaction costs by almost 75% compared with the uniform standard. Future NPS control policies should use spatial information to target policy resources to priority concerns, areas, and farms. Further research is needed to lower the costs and
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38

Giles, Bretton T., and Timothy D. Knapp. "A Mississippian Mace at Iroquoia’s Southern Door." Midcontinental Journal of Archaeology 40, no. 1 (2015): 73–95. http://dx.doi.org/10.2307/26599910.

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Abstract This paper documents a Mississippian chipped stone mace, found by Lyle Edger, an amateur collector, in an agricultural field in Nichols, NY, along the Susquehanna River. This crown-form mace is made out of Dover chert and was probably produced by Mississippian people who lived in Middle Tennessee, circa A.D. 1200–1400. We argue that the Nichols Mace could have been acquired by Iroquoian people as the result of either a gift or diplomatic negotiations. We conclude that the meanings the mace held for Iroquoian people were likely tied to how they acquired it.
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Srivastava, Abhishekh Kumar, Richard Grotjahn, Paul Aaron Ullrich, and Mojtaba Sadegh. "Pooling Data Improves Multimodel IDF Estimates over Median-Based IDF Estimates: Analysis over the Susquehanna and Florida." Journal of Hydrometeorology 22, no. 4 (2021): 971–95. http://dx.doi.org/10.1175/jhm-d-20-0180.1.

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AbstractTraditional multimodel methods for estimating future changes in precipitation intensity, duration, and frequency (IDF) curves rely on mean or median of models’ IDF estimates. Such multimodel estimates are impaired by large estimation uncertainty, shadowing their efficacy in planning efforts. Here, assuming that each climate model is one representation of the underlying data generating process, i.e., the Earth system, we propose a novel extension of current methods through pooling model data: (i) evaluate performance of climate models in simulating the spatial and temporal variability o
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40

Sun, Ning, Mark S. Wigmosta, David Judi, Zhaoqing Yang, Ziyu Xiao, and Taiping Wang. "Climatological analysis of tropical cyclone impacts on hydrological extremes in the Mid-Atlantic region of the United States." Environmental Research Letters 16, no. 12 (2021): 124009. http://dx.doi.org/10.1088/1748-9326/ac2d6a.

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Abstract Research efforts related to landfalling tropical cyclones (TCs) and their hydrological impacts have focused mostly on the continental or regional scales, whereas many coastal management and infrastructure decisions are made at much finer spatial scales. In this context, this study aims to provide local-scale understandings of the climatological characteristics and hydrological impacts of TCs (from 1950 to 2019) over the Mid-Atlantic region defined as the Delaware River Basin (DRB) and Susquehanna River Basin (SRB). The climatological analysis is based on analyzing long-term, spatially
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Clausen, Eric. "Geomorphic History Determined by a New Glacial History Paradigm and Topographic Map Interpretation, Towanda Creek Drainage Basin, PA (USA)." Journal of Geography and Geology 16, no. 2 (2024): 1. http://dx.doi.org/10.5539/jgg.v16n2p1.

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Pennsylvania’s Towanda Creek drainage basin geomorphic history is determined by using a recently proposed geology and glacial history paradigm (which predicts massive and prolonged southwest oriented continental ice sheet meltwater floods flowed across Pennsylvania) when interpreting previously unexplained topographic map drainage system and erosional landform evidence. The new paradigm explains most of the region’s erosional landforms including barbed tributaries, drainage divides, through valleys (valleys crossing drainage divides), water and wind gaps, valley orientation
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42

Reighard, Gregory L., David R. Ouellette, and Kathy H. Brock. "PERFORMANCE OF PAWPAW CULTIVARS IN SOUTH CAROLINA." HortScience 41, no. 3 (2006): 503A—503. http://dx.doi.org/10.21273/hortsci.41.3.503a.

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A field planting of 18 selections and 10 named cultivars of pawpaw (Asimina triloba) was established in November 1996 near Clemson, S.C., as part of the Pawpaw Regional Variety Trial coordinated by Kentucky State University. Trees were planted at 2.0 × 5.5 m spacing with drip irrigation and straw mulch in a randomized complete block design consisting of 8 single-tree replications. Data collected through 2005 included tree survival, total tree yield, and yield and average weight of fruit weighing >150 g. Since the start of the trial, 3 selections, 1-7-1, 11-5 and 8-58 have been named and rel
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43

Egnal, Marc, and Peter C. Mancall. "Valley of Opportunity: Economic Culture along the Upper Susquehanna, 1700- 1800." American Historical Review 98, no. 1 (1993): 231. http://dx.doi.org/10.2307/2166520.

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44

Mancall, Peter C. "The Revolutionary War and the Indians of the Upper Susquehanna Valley." American Indian Culture and Research Journal 12, no. 1 (1988): 39–57. http://dx.doi.org/10.17953/aicr.12.1.47685jr4w12x53tn.

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45

Merrell, James H., and Peter C. Mancall. "Valley of Opportunity: Economic Culture along the Upper Susquehanna, 1700-1800." Journal of Interdisciplinary History 23, no. 4 (1993): 812. http://dx.doi.org/10.2307/206317.

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46

Stauffer, Jay R., Suzanne E. Boltz, and Jeffrey M. Boltz. "Cold Shock Susceptibility of Blue Tilapia from the Susquehanna River, Pennsylvania." North American Journal of Fisheries Management 8, no. 3 (1988): 329–32. http://dx.doi.org/10.1577/1548-8675(1988)008<0329:cssobt>2.3.co;2.

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47

Aron, Stephen, and Peter C. Mancall. "Valley of Opportunity: Economic Culture along the Upper Susquehanna, 1700-1800." Western Historical Quarterly 23, no. 3 (1992): 365. http://dx.doi.org/10.2307/971513.

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48

Dennis, Matthew, and Peter C. Mancall. "Valley of Opportunity: Economic Culture along the Upper Susquehanna, 1700-1800." Journal of American History 79, no. 1 (1992): 240. http://dx.doi.org/10.2307/2078497.

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49

Katherine Faull. "Charting the Colonial Backcountry: Joseph Shippen’s Map of the Susquehanna River." Pennsylvania Magazine of History and Biography 136, no. 4 (2012): 461. http://dx.doi.org/10.5215/pennmaghistbio.136.4.0461.

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50

Hood, J. Edward, and Peter C. Mancall. "Valley of Opportunity: Economic Culture Along the Upper Susquehanna, 1700-1800." Man 27, no. 4 (1992): 883. http://dx.doi.org/10.2307/2804183.

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