Zobrazeno 1 - 10 of 19 pro vyhledávání: '"Ryan P. Hanavan"'
1
Accuracy of aerial detection surveys for mapping insect and disease disturbances in the United States
Autor: Zachary Heath, Ryan P. Hanavan, Tom W. Coleman, Daniel R. Cluck, Andrew D. Graves, Robbie W. Flowers, Daniel Ryerson
Publikováno v: Forest Ecology and Management. 430:321-336
Insects and diseases annually cause millions of hectares of defoliation and mortality to forested landscapes in the U.S. To monitor these disturbance events, the USDA Forest Service, Forest Health Protection and cooperating state partners conduct ann
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::23d0666d7c91ee24ecf50bc1285dc145
https://doi.org/10.1016/j.foreco.2018.08.020
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3
Remote Sensing for Early, Detailed, and Accurate Detection of Forest Disturbance and Decline for Protection of Biodiversity
Autor: Jennifer Pontius, Ryan P. Hanavan, Paul G. Schaberg
Publikováno v: Remote Sensing of Plant Biodiversity ISBN: 9783030331566
Many ecosystems and the biodiversity they contain are currently faced with increasing disturbance frequency and intensity, concurrent with converging stress agents such as climate change, invasive species, and pollutant loads. Research has shown that
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::90f64e757cbb75516c4bfae7c09e45e2
https://doi.org/10.1007/978-3-030-33157-3_6
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4
Mapping canopy defoliation by herbivorous insects at the individual tree level using bi-temporal airborne imaging spectroscopy and LiDAR measurements
Autor: Iurii Shendryk, Feng Zhao, Shawn P. Serbin, Philip E. Dennison, Ran Meng, Ryan P. Hanavan, Bruce D. Cook, Amanda Rickert
Publikováno v: Remote Sensing of Environment. 215:170-183
Defoliation by herbivorous insects is a widespread forest disturbance driver, affecting global forest health and ecosystem dynamics. Compared with time- and labor-intensive field surveys, remote sensing provides the only realistic approach to mapping
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9d3283f0f67979b91a1e50c0994b3daa
https://doi.org/10.1016/j.rse.2018.06.008
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5
High spatial resolution spectral unmixing for mapping ash species across a complex urban environment
Autor: Richard A. Hallett, Jennifer Pontius, Ryan P. Hanavan, Bruce D. Cook, Lawrence A. Corp
Publikováno v: Remote Sensing of Environment. 199:360-369
Ash ( Fraxinus L.) species are currently threatened by the emerald ash borer (EAB; Agrilus planipennis Fairmaire) across a growing area in the eastern US. Accurate mapping of ash species is required to monitor the host resource, predict EAB spread an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::962225323e44338937664ffd9a207b48
https://doi.org/10.1016/j.rse.2017.07.027
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6
Low-level Adelges tsugae infestation detection in New England through partition modeling of Landsat data
Autor: Ernst Linder, Ryan P. Hanavan, Subhash C. Minocha, Justin Patrick Williams, Barrett N. Rock
Publikováno v: Remote Sensing of Environment. 190:13-25
The hemlock woolly adelgid (HWA) (Hemiptera: Adelges tsugae Annand) is an invasive insect causing damage to Eastern ( Tsuga canadensis (L.) Carr.) and Carolina ( Tsuga caroliniana Engelm.) hemlock trees in the eastern United States. Maine and New Ham
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c777926dd63a93fec03f4ab635756c3
https://doi.org/10.1016/j.rse.2016.12.005
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8
Influence of no‐tillage practices and later planting date on the pea leaf weevil, S itona lineatus , in pea, P isum sativum
Autor: Nilsa A. Bosque-Pérez, Ryan P. Hanavan
Publikováno v: Entomologia Experimentalis et Applicata. 162:77-85
The pea leaf weevil, Sitona lineatus (L.) (Coleoptera: Curculionidae), is a periodic pest of pea, Pisum sativum L. (Fabaceae), in the Palouse region of northern Idaho and eastern Washington, USA. Previous work on-station and in commercial pea fields
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5ddde0abdd5d2225b40285d19e320cc
https://doi.org/10.1111/eea.12517
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9
Influence of hemlock woolly adelgid infestation on the physiological and reflectance characteristics of eastern hemlock
Autor: Ernst Linder, Subhash C. Minocha, Ryan P. Hanavan, Barrett N. Rock, Justin Patrick Williams
Publikováno v: Canadian Journal of Forest Research. 46:410-426
The hemlock woolly adelgid (HWA) (Adelges tsugae Annand) is an invasive insect in the eastern United States. Since its initial detection in Richmond, Virginia, in 1951, HWA has spread to half of the eastern hemlock (Tsuga canadensis (L.) Carr.) natur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa06eeb4feca9264302f5a761fc6a1a3
https://doi.org/10.1139/cjfr-2015-0328
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10
The Effects of Silvicultural Treatment on Sirex noctilio Attacks and Tree Health in Northeastern United States
Autor: Robert R. Cooke, Ryan P. Hanavan, Kevin J. Dodds, Eric J. Jokela
Publikováno v: Forests, Vol 5, Iss 11, Pp 2810-2824 (2014)
Forests
Volume 5
Issue 11
Pages 2810-2824
The invasive woodwasp Sirex noctilio (Hymenoptera: Siricidae) is established in east-central North America. A replicated case study testing the effectiveness of silvicultural treatments for reducing the number of S. noctilio attacked trees in a stand
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adc94755e7f1525957a0240d1503942b
http://www.mdpi.com/1999-4907/5/11/2810
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