24,734 research outputs found
Self-caricature (caption: "Djuna Barnes, author of A Book--a self-caricature")
No full textSelf-caricature by Djuna Barnes, caption: "Djuna Barnes, author of A Book--self-caricature," circa 1923-1939
UA94/6/1 Clinic Covid-19 Reflections - Barnes
No full textReflections of Covid-19 pandemic by WKU Communication Sciences & Disorders graduate student K. Barnes
cheryl-barnes/Predation_TrophicStability: Ecological Applications Publication Release v1.0.0
No full textCitation: Barnes, C. L., A. H. Beaudreau, M. W. Dorn, K. K. Holsman, and F. J. Mueter. 2020. Development of a predation index to assess trophic stability in the Gulf of Alaska. Ecological Applications.
Overview
This repository details the methods used to calculate indices of predation for Walleye Pollock (Gadus chalcogrammus) in the Gulf of Alaska (MT per year; 1990 to 2015). Pollock predators included: Arrowtooth Flounder (Atheresthes stomias), Pacific Cod (Gadus macrocephalus), Pacific Halibut (Hippoglossus stenolepis), Sablefish (Anoplopoma fimbria), and Walleye Pollock conspecifics. We used predation indices to estimate synchrony in pollock consumption and make inferences about trophic stability among demersal fishes in the Gulf of Alaska.
File Structure
Input data (survey and food habits) and shapefiles can be found in Folder 1 ('1_Data' folder). Folders 2 through 5 contain species-specific analyses and resulting estimates for each component of the predation index. Results from distribution/density models (i.e., large .rda files) were not included. Folder 6 contains predation indices (all predators combined) for each of the spatial scales of interest: basin, the area encompassed by the stock assessment for Gulf of Alaska pollock, subregion, and statistical area. Script files in Folder 6 also include variance ratio calculations, which enabled estimates of synchrony and portfolio effects. Specific analyses that resulted in publication tables and figures are noted throughout.
All analyses were conducted using R v3.6 (R Core Team 2018).
Data Sources
Total Predator Biomass: Total biomass estimates were obtained from the most recent stock assessment for each groundfish predator (Barbeaux et al. 2017, Dorn et al. 2017, Hanselman et al. 2017, Spies et al. 2017, Stewart and Hicks 2017). Coast-wide estimates for Pacific Halibut were adjusted to reflect biomass in the Gulf of Alaska.
Relative Predator Densities: Bottom trawl survey data (all groundfish predators; 1990 to 2017) were collected by the Resource Assessment and Conservation Engineering (RACE) Division of the Alaska Fisheries Science Center (AFSC, NOAA) and are publicly accessible at https://www.afsc.noaa.gov/RACE/groundfish/survey_data/data.htm. See von Szalay et al. (2016) for information about bottom trawl survey design and data collection methods. Setline survey data (Pacific Halibut; 1998 to 2017) were collected by the International Pacific Halibut Commission and are publicly available at: https://iphc.int/data/fiss-data-query. For setline survey methods, see Clark and Hare (2006). Longline survey data (Sablefish; 1990 to 2017) were collected by the AFSC's Auke Bay Laboratories and can be found at https://www.afsc.noaa.gov/maps/longline/Map.php. See Sigler and Zenger (1989) for methods descriptions of the longline survey.
Mean Annual Rations and Age-specific Proportions of Pollock Consumed: Food habits data (all groundfish predators; 1990 to 2015) were provided by the AFSC's Resource Ecology and Ecosystem Modeling (REEM) Program and are publicly accessible at: https://access.afsc.noaa.gov/REEM/WebDietData/DietDataIntro.php. For food habits data collection and processing methods, see Livingston et al. (2017).
Financial and Logistical Support
This project was funded by the Pollock Conservation Cooperative Research Center (G00009488) and the Rasmuson Fisheries Research Center associated with the University of Alaska Fairbanks. An anonymous donor supplied additional funds via the Northern Gulf of Alaska Applied Research Award. The University of Alaska (Juneau Fisheries Division and Southeast Sitka Campus) provided facilities and additional support.
Acknowledgments
We appreciate assistance with data acquisition and processing from Kerim Aydin, Steve Barbeaux, Troy Buckley, Dana Hanselman, Tom Kong, Geoff Lang, Wayne Palsson, and Ian Stewart. Jordan Watson and Lorenzo Ciannelli provided guidance on the initial development of spatial models. Mary Hunsicker and two anonymous reviewers provided valuable comments to improve upon the analyses detailed here.
The authors would like to acknowledge Terry Quinn for offering his insight and expertise during earlier stages of this project. We have dedicated this work to him.
References
Stock Assessments
Barbeaux, S., K. Aydin, B. Fissel, K. Holsman, and W. Palsson. 2017. Assessment of the Pacific cod stock in the Gulf of Alaska. North Pacific Fishery Management Council Gulf of Alaska SAFE Report 189–332.
Dorn, M., K. Aydin, B. Fissel, D. Jones, A. McCarthy, W. Palsson, and K. Spalinger K. 2017. Assessment of the Walleye Pollock stock in the Gulf of Alaska. North Pacific Fishery Management Council Gulf of Alaska SAFE Report 47–182.
Hanselman, D. H., C. J. Rodgveller, C. R. Lunsford, and K. H. Fenske. 2017. Assessment of the Sablefish stock in Alaska. North Pacific Fishery Management Council Bering Sea, Aleutian Islands, and Gulf of Alaska SAFE Report 327–502.
Spies, I., K. Aydin, J. N. Ianelli, and W. Palsson. 2017. Assessment of the Arrowtooth Flounder stock in the Gulf of Alaska. North Pacific Fishery Management Council Gulf of Alaska SAFE Report 749–846.
Stewart, I., and A. Hicks. 2017. Assessment of the Pacific halibut (Hippoglossus stenolepis) stock at the end of 2017. International Pacific Halibut Commission IPHC-2018-AM094-10.
Survey and Food Habits Data
Clark, W. G., and S. R. Hare. 2006. Assessment and management of Pacific halibut: data, methods, and policy. IPHC Scientific Report 83.
Livingston, P. A., K. Aydin, T. W. Buckley, G. M. Lang, M-S. Yang, and B. S. Miller. 2017. Quantifying food web interactions in the North Pacific – a data-based approach. Environmental Biology of Fishes. 100(4):443–470.
Sigler, M. F., and H. H. Zenger, Jr. 1989. Assessment of Gulf of Alaska Sablefish and other groundfish based on the domestic longline survey, 1987. NOAA Technical Memorandum NMFS-AFSC Report 169.
von Szalay, P. G., and N. W. Raring. 2016. Data report: 2015 Gulf of Alaska bottom trawl survey. Seattle, WA. NOAA Technical Memorandum NMFS-AFSC-325.
Species Distribution Modeling
Barnes, C. L., A. H. Beaudreau, M. E. Hunsicker, and L. Ciannelli (2018). Assessing the potential for competition between Pacific Halibut (Hippoglossus stenolepis) and Arrowtooth Flounder (Atheresthes stomias) in the Gulf of Alaska. PLoS ONE 13(12):e0209402.
Hunsicker, M. E., L. Ciannelli, K. M. Bailey, S. Zador, and L. Stige. 2013. Climate and demography dictate the strength of predator-prey overlap in a subarctic marine ecosystem. PLoS ONE 8(6):e66025.
Shelton, A. O., M. E. Hunsicker, E. J. Ward, B. E. Feist, R. Blake, C. L. Ward, et al. 2017. Spatio-temporal models reveal subtle changes to demersal communities following the Exxon Valdez oil spill. ICES Journal of Marine Science doi:10.1093/icesjms/fsx079.
Bioenergetics
Armstrong JB and Schindler DE. 2011. Excess digestive capacity in predators reflects a life of feast and famine. Nature. 476:84–87.
Beaudreau, A. H., and T. E. Essington. 2009. Development of a new field-based approach for estimating consumption rates of fishes and comparison with a bioenergetics model for lingcod (Ophiodon elongatus). Canadian Journal of Fisheries and Aquatic Sciences 66:565−578.
Harvey, C. J. 2009. Effects of temperature change on demersal fisheries in the California Current: a bioenergetics approach. Canadian Journal of Fisheries and Aquatic Sciences 66:1449–1461.
Holsman, K. K., and K. Aydin. 2015. Comparative methods for evaluating climate change impacts on the foraging ecology of Alaskan groundfish. Marine Ecology Progress Series 521:217–235.
Holsman, K. K., K. Aydin, J. Sullivan, T. Hurst, and G. Kruse. 2019. Climate effects and bottom-up controls on growth and size-at-age of Pacific halibut (Hippoglossus stenolepis) in Alaska (USA). Fisheries Oceanography 28:345–358.
Miscellaneous
Brodziak, J. 2012. Fitting length-weight relationships with linear regression using the log-transformed allometric model with bias-correction. NOAA Technical Memorandum PIFSC-H-12-03.
Chipps, S. R., and J. E. Garvey. 2007. Assessment of diets and feeding patterns. In: Analysis and interpretation of freshwater fisheries data. C. S. Guy and M. L. Brown, editors. Bethesda, MD. American Fisheries Society 473–514.
R Core Team. 2018. R: a language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org/
Barnes, K G, VX44182
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/370263Surname: BARNES
Given Name(s) or Initials: K G
Military Service Number or Last Known Location: VX44182
Missing, Wounded and Prisoner of War Enquiry Card Index Number: 37958180523
Item: [2016.0049.02590] "Barnes, K G, VX44182
Barnes, Washington County
No full textCaroline Tanner, “Barnes, Washington County,” Chapman Center Research Collections, https://ccrsresearchcollections.omeka.net/items/show/77.The author creates a charming portrait of the town of Barnes, Kansas. She uses documents as well as oral interviews to tell the delightful history of the town
Macrophthalmus (Mareotis) Barnes 1967
No full textMacrophthalmus (Mareotis) Barnes, 1967 (Figs. 3C, 4A) Large, up to 40 mm carapace breadth; ocular peduncles elongate but not projecting beyond lateral carapace margins, much longer than breadth of front; front narrow, usually constricted between bases of ocular peduncles, where its breadth is 8–15% distance between external orbital angles; ischium of external maxilliped> 1.5 times length of merus (usually 1.7–2.5 times); carapace with breadth 1.3–1.7 times length (and in one species> 1.8 times length), with large, broad-based, subrectangular anterolateral teeth, with lateral margins subparallel or arched (so that greatest carapace breadth not across external orbital angles or even second anterolateral teeth), with longitudinal and/or transverse rows of granules and/or hairs on branchial regions but without clumps of granules; central region of posterior border of epistome straight, with marked concavity or (in some populations of one species) with a central protuberance; males of one species with stridulatory apparatus as described below in Paramareotis; fingers of male chelae usually elongate with index downflexed and with differentiated teeth on both index and dactylus or on dactylus only. Intertidal, usually in relatively soft muds. Twelve species are included which have been divided between two subgroups on morphological grounds (the groups A and B of Komai et al., 1995):Published as part of Barnes, R. S. K., 2010, A Review Of The Sentinel And Allied Crabs (Crustacea: Brachyura: Macrophthalmidae), With Particular Reference To The Genus Macrophthalmus, pp. 31-49 in Raffles Bulletin of Zoology 58 (1) on pages 40-41, DOI: 10.5281/zenodo.450830
Macrophthalmus (Tasmanoplax) Barnes 1967
No full textMacrophthalmus (Tasmanoplax) Barnes, 1967 (Fig. 5A) Medium-sized, up to 30+ mm carapace breadth; ocular peduncles elongate but not projecting beyond lateral carapace margins, longer than breadth of front; front moderately narrow, not constricted between bases of ocular peduncles, where its breadth is ca. 20% distance between external orbital angles; ischium of external maxilliped ca.1.2 times length of merus; carapace with breadth 1.5–1.6 times length, with lateral margins subparallel, with large, broad-based, subrectangular anterolateral teeth, branchial regions with transverse and longitudinal rows of granules; central region of posterior border of epistome with large convexity; males without stridulatory apparatus; fingers of male chelae elongate with index downflexed and with clearly differentiated tooth on dactylus only. Intertidal in soft sediments. This is a monotypic subgenus for M. latifrons Haswell, 1882, restricted to south-eastern Australia, the only macrophthalmid in that region. It appears to differ behaviourly from other Macrophthalmus in that allocleaning (foraging on the carapace or walking legs of other conspecific individuals) is not displayed (Kitaura & Wada, 2004).Published as part of Barnes, R. S. K., 2010, A Review Of The Sentinel And Allied Crabs (Crustacea: Brachyura: Macrophthalmidae), With Particular Reference To The Genus Macrophthalmus, pp. 31-49 in Raffles Bulletin of Zoology 58 (1) on page 42, DOI: 10.5281/zenodo.450830
Interview with Steven A. Barnes, October 19, 2010
No full textInterview Themes: How Barnes came to be interested in the gulag (00:57)
The evolution of Barnes's gulag project (04:12)
The argument of Barnes's forthcoming book and how it will likely be received (18:32)
Most interesting and exciting directions in Soviet historiography now (32:10)Interview with Steven A. Barnes, Associate Professor of History at George Mason University. Interview conducted in Ithaca, NY on October 19, 2010. Professor Barnes is the author of the book Death and Redemption: The Gulag and the Shaping of Soviet Society, which is forthcoming from Princeton University Press in 2011. Barnes is also the author of a website on the history of the gulag called Gulag: Many Days, Many Lives.1_yvj84mn
Repositioning the graphic designer as researcher
No full textIn academic terms, the discipline of graphic design is relatively young. Consequently the position of the discipline within academic territory, and the role of the designer, continue to be debated. In part, these debates have been a product of attempts to define and defend the discipline’s borders from within, in order to establish a sense of the role of graphic design and the graphic designer as commensurate with other disciplines both within and beyond art and design. In recent years graphic designers have variously been defined as ‘authors’, ‘producers’ and ‘readers’, yet none of these definitions seem to have provided any kind of productive or lasting impact within the academy. This paper suggests that rather than continue to seek territorial definitions and positions from within, it could be more productive to look beyond the confines of the discipline. Gaining a broader, interdisciplinary perspective on, and understanding of, qualitative research methods from other disciplines may enable the graphic designer to more fully position his or her practice within the wider academy. Such a perspective could help facilitate the repositioning and redefinition of the graphic designer as ‘researcher’ - a move that would be productive in relation to the future development of postgraduate research within the discipline
Barnes, Deborah, March 22, 2019 [Interview]
No full textDeborah Barnes was interviewed on March 22, 2019, by Devin McKinney about her upbringing, her education, and her experiences as a faculty member at Gettysburg College.Chiteji, Frank; Gondwe, Derrick K.; Berg, Temma; Gray, Cecil; Myers, Joseph; Stewart, Mary Margaret; Goldberg, Leonard; Mattson, Karl; Fredrickson, Robert; Davis, AngelaGordon A. Haaland Years
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