Daniel Uden

Mr. Daniel Uden


Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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28 January 2021 in Methods in Ecology and Evolution
Verified
Journal Article
Open access
PDF file
BABrady W. Allred
Brady W. Allred
BBBrandon T. Bestelmeyer
Brandon T. Bestelmeyer
CBChad S. Boyd
Chad S. Boyd
CBChristopher Brown
Christopher Brown
KDKirk W. Davies
Kirk W. Davies
DUDaniel Uden
Daniel Uden
Operational satellite remote sensing products are transforming rangeland management and science. Advancements in computation, data storage and processing have removed barriers that previously blocked or hindered the development and use of remote sensing products. When combined with local data and knowledge, remote sensing products can inform decision‐making at multiple scales. We used temporal convolutional networks to produce a fractional cover product that spans western United States rangelands. We trained the model with 52,012 on‐the‐ground vegetation plots to simultaneously predict fractional cover for annual forbs and grasses, perennial forbs and grasses, shrubs, trees, litter and bare ground. To assist interpretation and to provide a measure of prediction confidence, we also produced spatiotemporal‐explicit, pixel‐level estimates of uncertainty. We evaluated the model with 5,780 on‐the‐ground vegetation plots removed from the training data. Model evaluation averaged 6.3% mean absolute error and 9.6% root mean squared error. Evaluation with additional datasets that were not part of the training dataset, and that varied in geographic range, method of collection, scope and size, revealed similar metrics. Model performance increased across all functional groups compared to the previously produced fractional product. The advancements achieved with the new rangeland fractional cover product expand the management toolbox with improved predictions of fractional cover and pixel‐level uncertainty. The new product is available on the Rangeland Analysis Platform (https://rangelands.app/), an interactive web application that tracks rangeland vegetation through time. This product is intended to be used alongside local on‐the‐ground data, expert knowledge, land use history, scientific literature and other sources of information when making interpretations. When being used to inform decision‐making, remotely sensed products should be evaluated and utilized according to the context of the decision and not be used in isolation.

13 May 2016 in Journal of Applied Ecology
Verified
Journal Article
Closed access
PDF file
CACraig Allen
Craig Allen
DADavid G. Angeler
David G. Angeler
GCGraeme S. Cumming
Graeme S. Cumming
CFCarl Folke
Carl Folke
DTDirac Twidwell
Dirac Twidwell
DUDaniel Uden
Daniel Uden

1 January 2012 in Biofuels
Verified
Journal Article
Closed access
RMRob Mitchell
Rob Mitchell
KVKenneth P Vogel
Kenneth P Vogel
DUDaniel Uden
Daniel Uden

31 May 2015 in Biological Invasions
Verified
Journal Article
Closed access
PDF file
DUDaniel Uden
Daniel Uden
CACraig R. Allen
Craig R. Allen
DADavid G. Angeler
David G. Angeler
LCLucía Corral
Lucía Corral
KFKent A. Fricke
Kent A. Fricke

13 May 2022 in Environmental Research Letters
Verified
Journal Article
Open access
SVSechindra Vallury
Sechindra Vallury
ASAda P Smith
Ada P Smith
BCBrian Chaffin
Brian Chaffin
HNHolly K Nesbitt
Holly K Nesbitt
SLSapana Lohani
Sapana Lohani
CACraig R Allen
Craig R Allen
The concept of adaptive capacity has received significant attention within social-ecological and environmental change research. Within both the resilience and vulnerability literatures specifically, adaptive capacity has emerged as a fundamental concept for assessing the ability of social-ecological systems to adapt to environmental change. Although methods and indicators used to evaluate adaptive capacity are broad, the focus of existing scholarship has predominately been at the individual- and household- levels. However, the capacities necessary for humans to adapt to global environmental change are often a function of individual and societal characteristics, as well as cumulative and emergent capacities across communities and jurisdictions. In this paper, we apply a systematic literature review and co-citation analysis to investigate empirical research on adaptive capacity that focus on societal levels beyond the household. Our review demonstrates that assessments of adaptive capacity at higher societal levels are increasing in frequency, yet vary widely in approach, framing, and results; analyses focus on adaptive capacity at many different levels (e.g. community, municipality, global region), geographic locations, and cover multiple types of disturbances and their impacts across sectors. We also found that there are considerable challenges with regard to the ‘fit’ between data collected and analytical methods used in adequately capturing the cross-scale and cross-level determinants of adaptive capacity. Current approaches to assessing adaptive capacity at societal levels beyond the household tend to simply aggregate individual- or household-level data, which we argue oversimplifies and ignores the inherent interactions within and across societal levels of decision-making that shape the capacity of humans to adapt to environmental change across multiple scales. In order for future adaptive capacity research to be more practice-oriented and effectively guide policy, there is a need to develop indicators and assessments that are matched with the levels of potential policy applications.

1 October 2014 in Ecological Applications
Verified
Journal Article
Open access
PDF file
DUDaniel Uden
Daniel Uden
MHMichelle L. Hellman
Michelle L. Hellman
DADavid G. Angeler
David G. Angeler
CACraig R. Allen
Craig R. Allen
Ecological reserves provide important wildlife habitat in many landscapes, and the functional connectivity of reserves and other suitable habitat patches is crucial for the persistence and resilience of spatially structured populations. To maintain or increase connectivity at spatial scales larger than individual patches, conservation actions may focus on creating and maintaining reserves and/or influencing management on non‐reserves. Using a graph‐theoretic approach, we assessed the functional connectivity and spatial distribution of wetlands in the Rainwater Basin of Nebraska, USA, an intensively cultivated agricultural matrix, at four assumed, but ecologically realistic, anuran dispersal distances. We compared connectivity in the current landscape to the historical landscape and putative future landscapes, and evaluated the importance of individual and aggregated reserve and non‐reserve wetlands for maintaining connectivity. Connectivity was greatest in the historical landscape, where wetlands were also the most densely distributed. The construction of irrigation reuse pits for water storage has maintained connectivity in the current landscape by replacing destroyed wetlands, but these pits likely provide suboptimal habitat. Also, because there are fewer total wetlands (i.e., wetlands and irrigation reuse pits) in the current landscape than the historical landscape, and because the distribution of current wetlands is less clustered than that of historical wetlands, larger and longer dispersing, sometimes nonnative species may be favored over smaller, shorter dispersing species of conservation concern. Because of their relatively low number, wetland reserves do not affect connectivity as greatly as non‐reserve wetlands or irrigation reuse pits; however, they likely provide the highest quality anuran habitat. To improve future levels of resilience in this wetland habitat network, management could focus on continuing to improve the conservation status of non‐reserve wetlands, restoring wetlands at spatial scales that promote movements of shorter dispersing species, and further scrutinizing irrigation reuse pit removal by considering effects on functional connectivity for anurans, an emblematic and threatened group of organisms. However, broader conservation plans will need to give consideration to other wetland‐dependent species, incorporate invasive species management, and address additional challenges arising from global change in social‐ecological systems like the Rainwater Basin.