Pub Date : 2019-01-01DOI: 10.5325/jpennacadscie.93.1.0013
Petrick, Seddon, Lambert, Ammer
{"title":"Fecal pellet surveys and DNA analysis reveal that Appalachian cottontails (Sylvilagus obscurus) are more widespread than previously recorded in western Maryland","authors":"Petrick, Seddon, Lambert, Ammer","doi":"10.5325/jpennacadscie.93.1.0013","DOIUrl":"https://doi.org/10.5325/jpennacadscie.93.1.0013","url":null,"abstract":"","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70854876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.5325/jpennacadscie.93.2.0187
Sell
{"title":"Reaching sustainability goals through efficiency and off-grid living","authors":"Sell","doi":"10.5325/jpennacadscie.93.2.0187","DOIUrl":"https://doi.org/10.5325/jpennacadscie.93.2.0187","url":null,"abstract":"","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70855328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.5325/jpennacadscie.93.2.0195
Black
{"title":"A burping bowl in every cupboard: Tupperware and the lessons of American energy decadence","authors":"Black","doi":"10.5325/jpennacadscie.93.2.0195","DOIUrl":"https://doi.org/10.5325/jpennacadscie.93.2.0195","url":null,"abstract":"","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70855038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.5325/jpennacadscie.93.2.0167
Rohrs
{"title":"Utility-scale wind energy development challenges in Pennsylvania, 2018","authors":"Rohrs","doi":"10.5325/jpennacadscie.93.2.0167","DOIUrl":"https://doi.org/10.5325/jpennacadscie.93.2.0167","url":null,"abstract":"","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70855234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.5325/jpennacadscie.93.2.0177
Barton, Levri
{"title":"Status of wind in Pennsylvania: Social and environmental impacts of wind","authors":"Barton, Levri","doi":"10.5325/jpennacadscie.93.2.0177","DOIUrl":"https://doi.org/10.5325/jpennacadscie.93.2.0177","url":null,"abstract":"","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70855256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.5325/jpennacadscie.93.1.0063
Weaver, Cole.
{"title":"Barriers and incentives to stream conservation: the influence of culture on buffer design and implementation","authors":"Weaver, Cole.","doi":"10.5325/jpennacadscie.93.1.0063","DOIUrl":"https://doi.org/10.5325/jpennacadscie.93.1.0063","url":null,"abstract":"","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70854749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-01DOI: 10.5325/jpennacadscie.93.2.0118
Sizemore, Heil
{"title":"Computational analysis of intermolecular Diels–Alder reactions of methyl 2-(methyl(phenyl)carbamoyl)acrylate with cyclic dienes","authors":"Sizemore, Heil","doi":"10.5325/jpennacadscie.93.2.0118","DOIUrl":"https://doi.org/10.5325/jpennacadscie.93.2.0118","url":null,"abstract":"","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70854517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.5325/jpennacadscie.90.1.0007
Sean M. Hartzell
Species inventories and distributional analyses at fine resolutions, such as at the county level, can provide a wealth of data to inform biological research and management as well as provide important baseline data for long-term biological monitoring. This work represents the first herpetological species and distributional inventory for Columbia County in northeastern Pennsylvania. A review of literature, museum records, and vouchered submissions on the Pennsylvania Amphibian and Reptile Survey (PARS) database confirmed the occurrence of 39 species of amphibians and reptiles within the county. The Eastern Musk Turtle (Sternotherus odoratus) is reported herein as a new county record. Eleven species confirmed within Columbia County are of conservation concern. Known township occurrence data, compiled from museum records, published literature, and field observations are presented for 28 non-imperiled species and (with township names omitted) for seven imperiled species. This work contributes to the understanding of Pennsylvania's herpetofauna and provides important baseline data for long-term monitoring and future research on amphibian and reptile species within Columbia County.
{"title":"A Checklist and Distributional Synthesis of Amphibian and Reptile Species in Columbia County, Pennsylvania","authors":"Sean M. Hartzell","doi":"10.5325/jpennacadscie.90.1.0007","DOIUrl":"https://doi.org/10.5325/jpennacadscie.90.1.0007","url":null,"abstract":"\u0000 Species inventories and distributional analyses at fine resolutions, such as at the county level, can provide a wealth of data to inform biological research and management as well as provide important baseline data for long-term biological monitoring. This work represents the first herpetological species and distributional inventory for Columbia County in northeastern Pennsylvania. A review of literature, museum records, and vouchered submissions on the Pennsylvania Amphibian and Reptile Survey (PARS) database confirmed the occurrence of 39 species of amphibians and reptiles within the county. The Eastern Musk Turtle (Sternotherus odoratus) is reported herein as a new county record. Eleven species confirmed within Columbia County are of conservation concern. Known township occurrence data, compiled from museum records, published literature, and field observations are presented for 28 non-imperiled species and (with township names omitted) for seven imperiled species. This work contributes to the understanding of Pennsylvania's herpetofauna and provides important baseline data for long-term monitoring and future research on amphibian and reptile species within Columbia County.","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70854308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.5325/jpennacadscie.90.1.0013
Matthew K. Kolbeck, Tammy Tintjer
Endophytic fungi of grasses in the genus Epichloë produce protective alkaloids that are known to deter herbivory. In addition to direct measurement of alkaloids, various feeding tests are used to assess bioactivity. Brine shrimp (Artemia salina) assays have been used to detect bioactivity in plants and fungi, including endophytic fungi of medicinal plants. We tested the utility of a brine shrimp assay to detect bioactivity in the endophyte-infected (symbiotic) grass Agrostis hyemalis. We exposed brine shrimp larvae (nauplii) to whole plant aqueous extracts as well as to fermentation cultures of the isolated fungus and observed nauplii survival after 24 hours. Whole plant extracts of symbiotic grasses reduced survival, compared to brine shrimp survival in the extracts of grass lacking the endophyte. Furthermore the effect of symbiotic grass extracts was dose-dependent, with reduced survival in the higher concentration compared to lower. These results suggest that the brine shrimp assay detects bioactivity of endophyte-produced toxins. This short-term assay is simple, inexpensive, requires no specialized equipment, is suitable for student research projects, and could potentially serve as an initial screening of symbiotic grasses for alkaloid production.
{"title":"The Use of a Brine Shrimp Assay to Detect Bioactivity in the Endophyte-Infected Grass, Agrostis hyemalis","authors":"Matthew K. Kolbeck, Tammy Tintjer","doi":"10.5325/jpennacadscie.90.1.0013","DOIUrl":"https://doi.org/10.5325/jpennacadscie.90.1.0013","url":null,"abstract":"\u0000 Endophytic fungi of grasses in the genus Epichloë produce protective alkaloids that are known to deter herbivory. In addition to direct measurement of alkaloids, various feeding tests are used to assess bioactivity. Brine shrimp (Artemia salina) assays have been used to detect bioactivity in plants and fungi, including endophytic fungi of medicinal plants. We tested the utility of a brine shrimp assay to detect bioactivity in the endophyte-infected (symbiotic) grass Agrostis hyemalis. We exposed brine shrimp larvae (nauplii) to whole plant aqueous extracts as well as to fermentation cultures of the isolated fungus and observed nauplii survival after 24 hours. Whole plant extracts of symbiotic grasses reduced survival, compared to brine shrimp survival in the extracts of grass lacking the endophyte. Furthermore the effect of symbiotic grass extracts was dose-dependent, with reduced survival in the higher concentration compared to lower. These results suggest that the brine shrimp assay detects bioactivity of endophyte-produced toxins. This short-term assay is simple, inexpensive, requires no specialized equipment, is suitable for student research projects, and could potentially serve as an initial screening of symbiotic grasses for alkaloid production.","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70854352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-06-01DOI: 10.5325/jpennacadscie.90.1.0001
Jason D. Rodriguez, Joseph J. Kremer
A series of tris(bipyridine)ruthenium(II) chloride ([Ru(bpy)3]Cl2)-sequestered reverse micellar solutions of variable surfactant concentration were examined using fluorescence spectroscopy before and after thermal radical polymerization of the nonpolar phase. The [Ru(bpy)3]Cl2 emission spectra simulated aqueous solution chemical environments irrespective whether the nonpolar phase is liquid or polymerized into a solid. A range of surfactant concentrations were examined. Emission maxima of the reverse micelle solution-sequestered [Ru(bpy)3]Cl2 species are red-shifted with respect to aqueous [Ru(bpy)3]Cl2. The red-shift can be interpreted in the context of increasing chemical environment polarity. Emission maxima of the [Ru(bpy)3]Cl2 species of polymerized nonpolar phase at approximately 600 nm were consistent with [Ru(bpy)3]Cl2 aqueous species. The work represents a pathway to preserve solution-dependent chemical processes of molecular sensors.
{"title":"Probing Chemical Environment Using Polymeric Reverse Micellar Solutions Which Sequester Inorganic Coordination Complex Fluorophores","authors":"Jason D. Rodriguez, Joseph J. Kremer","doi":"10.5325/jpennacadscie.90.1.0001","DOIUrl":"https://doi.org/10.5325/jpennacadscie.90.1.0001","url":null,"abstract":"\u0000 A series of tris(bipyridine)ruthenium(II) chloride ([Ru(bpy)3]Cl2)-sequestered reverse micellar solutions of variable surfactant concentration were examined using fluorescence spectroscopy before and after thermal radical polymerization of the nonpolar phase. The [Ru(bpy)3]Cl2 emission spectra simulated aqueous solution chemical environments irrespective whether the nonpolar phase is liquid or polymerized into a solid. A range of surfactant concentrations were examined. Emission maxima of the reverse micelle solution-sequestered [Ru(bpy)3]Cl2 species are red-shifted with respect to aqueous [Ru(bpy)3]Cl2. The red-shift can be interpreted in the context of increasing chemical environment polarity. Emission maxima of the [Ru(bpy)3]Cl2 species of polymerized nonpolar phase at approximately 600 nm were consistent with [Ru(bpy)3]Cl2 aqueous species. The work represents a pathway to preserve solution-dependent chemical processes of molecular sensors.","PeriodicalId":85037,"journal":{"name":"Journal of the Pennsylvania Academy of Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70854252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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