Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Craig E. Tweedie"'
Autor:
Jacob A. Harris, Robert D. Hollister, Timothy F. Botting, Craig E. Tweedie, Katlyn R. Betway, Jeremy L. May, Robert T.S. Barrett, Jenny A. Leibig, Hana L. Christoffersen, Sergio A. Vargas, Mariana Orejel, Tabatha L. Fuson
Publikováno v:
Arctic Science, Vol 8, Iss 3, Pp 878-898 (2022)
The Arctic is experiencing rapid climate change. This research documents changes to tundra vegetation near Atqasuk and Utqiaġvik, Alaska. At each location, 30 plots were sampled annually from 2010 to 2019 using a point frame. For every encounter, we
Externí odkaz:
https://doaj.org/article/7e16153df5c7455997f8d64674d31470
Autor:
Anthony Darrouzet‐Nardi, Isabel Siles Asaff, Marguerite Mauritz, Kathleen Roman, Eleanor Keats, Craig E. Tweedie, Jennie R. McLaren
Publikováno v:
Ecosphere, Vol 14, Iss 4, Pp n/a-n/a (2023)
Abstract In dryland soils, spatiotemporal variation in surface soils (0–10 cm) plays an important role in the function of the “critical zone” that extends from canopy to groundwater. Understanding connections between soil microbes and biogeoche
Externí odkaz:
https://doaj.org/article/1bbf1ab99a5b4ddbb0a66410c314af34
Autor:
Sarah E. McCord, Joseph R. Brehm, Sarah H. Burnett, Chris Dietrich, Brandon Edwards, Loretta J. Metz, Mariano Hernandez Narvaez, Fred Pierson, Kelly S. Ramirez, Nelson G. Stauffer, Nicholas P. Webb, Craig E. Tweedie
Publikováno v:
Ecological Indicators, Vol 144, Iss , Pp 109511- (2022)
Standard indicators and measurements are key to cross-scale agroecosystem assessments. While the need to standardize indicators is broadly recognized, inconsistencies in indicator calculations from common measurements may yield discrepancies in indic
Externí odkaz:
https://doaj.org/article/54d8bd73b5a548728dcedcd1e3886dfe
Autor:
Hana L. Sellers, Sergio A. Vargas Zesati, Sarah C. Elmendorf, Alexandra Locher, Steven F. Oberbauer, Craig E. Tweedie, Chandi Witharana, Robert D. Hollister
Publikováno v:
Remote Sensing, Vol 15, Iss 8, p 1972 (2023)
Plot-level photography is an attractive time-saving alternative to field measurements for vegetation monitoring. However, widespread adoption of this technique relies on efficient workflows for post-processing images and the accuracy of the resulting
Externí odkaz:
https://doaj.org/article/d902a074a8e64eb2881a648ab76bc833
Autor:
Jeremy L. May, Robert D. Hollister, Katlyn R. Betway, Jacob A. Harris, Craig E. Tweedie, Jeffrey M. Welker, William A. Gould, Steven F. Oberbauer
Publikováno v:
Frontiers in Plant Science, Vol 11 (2020)
A warming Arctic has been associated with increases in aboveground plant biomass, specifically shrubs, and changes in vegetation cover. However, the magnitude and direction of changes in NDVI have not been consistent across different tundra types. He
Externí odkaz:
https://doaj.org/article/e4f6a9dd2f234c83b405fbb2b634c5c7
Autor:
Kathryn R. Wedemeyer-Strombel, Markus J. Peterson, Ramon Neftali Sanchez, Sofía Chavarría, Melissa Valle, Eduardo Altamirano, Velkiss Gadea, Stacey K. Sowards, Craig E. Tweedie, Michael J. Liles
Publikováno v:
Frontiers in Communication, Vol 4 (2019)
Using social science to integrate local knowledge into conservation science can provide unique insights to conservation challenges. Especially when baseline data of a vulnerable wildlife population are deficient, these methods can help fill critical
Externí odkaz:
https://doaj.org/article/db885f6b13ee44c79e6a0bbad759fa6d
Publikováno v:
Journal of Microbiology & Biology Education, Vol 19, Iss 1 (2018)
The recent advent of course-based undergraduate research experiences (CUREs) has provided a unique platform for immersing students in the process of scientific discovery. Inherent of this process and of the CURE paradigm is the expectation that the d
Externí odkaz:
https://doaj.org/article/b191de71bb994d02b79684eada17a160
Autor:
Dyre O. Dammann, Leif E. B. Eriksson, Andrew R. Mahoney, Christopher W. Stevens, Joost van der Sanden, Hajo Eicken, Franz J. Meyer, Craig E. Tweedie
Publikováno v:
Remote Sensing, Vol 10, Iss 5, p 720 (2018)
Bottomfast sea ice is an integral part of many near-coastal Arctic ecosystems with implications for subsea permafrost, coastal stability and morphology. Bottomfast sea ice is also of great relevance to over-ice travel by coastal communities, industri
Externí odkaz:
https://doaj.org/article/56071474fc994bd087e0f458eee11895
Autor:
Jeremy L. May, Nathan C. Healey, Hella E. Ahrends, Robert D. Hollister, Craig E. Tweedie, Jeffrey M. Welker, William A. Gould, Steven F. Oberbauer
Publikováno v:
Remote Sensing, Vol 9, Iss 12, p 1338 (2017)
Climate change is warming the temperatures and lengthening the Arctic growing season with potentially important effects on plant phenology. The ability of plant species to acclimate to changing climatic conditions will dictate the level to which thei
Externí odkaz:
https://doaj.org/article/cb14c7df0a2f4c8bb59059b18e8afd45
Publikováno v:
Remote Sensing, Vol 9, Iss 10, p 1071 (2017)
Near surface (i.e., camera) and satellite remote sensing metrics have become widely used indicators of plant growing seasons. While robust linkages have been established between field metrics and ecosystem exchange in many land cover types, assessmen
Externí odkaz:
https://doaj.org/article/66e571fcf1254a9a9e0fabaa9d14a6aa