Publications
Below are publications associated with the Southwest Biological Science Center's research.
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Filter Total Items: 1512
Mixed natal origins present management challenges for a non-native fish established throughout a modified river network Mixed natal origins present management challenges for a non-native fish established throughout a modified river network
Expansion of non-native brown trout (Salmo trutta) in the Colorado River below Glen Canyon Dam motivated reevaluation of suppression strategies to minimize potential impacts to native fishes in the Grand Canyon, Arizona, USA. Brown trout are one of several non-native fish species of management concern in this river reach, and understanding their natal sources and movement patterns may...
Authors
Michael K. Akland, Karin E. Limburg, Brian D. Healy, William E. Pine
Canopy and surface fuels measurement using terrestrial lidar single-scan approach in the Mogollon highlands of Arizona Canopy and surface fuels measurement using terrestrial lidar single-scan approach in the Mogollon highlands of Arizona
Background Fuel monitoring data are essential to evaluate wildfire risk, plan management activities and evaluate fuel treatment effects. Terrestrial light detection and ranging (lidar) is a field-based 3D scanning technology with great potential to reduce labor-intensive field measurements and provide new depths of vegetation structure data. Aims To facilitate the integration of...
Authors
Johnathan T. Tenny, Temuulen Tsagaan Sankey, Seth M. Munson, Andrew J. Sánchez Meador, Scott J. Goetz
Population growth of threatened Gulf Sturgeon may be limited by the frequency of adult episodic mortality events Population growth of threatened Gulf Sturgeon may be limited by the frequency of adult episodic mortality events
Objective We identified spatial and temporal variation in population trends for Gulf Sturgeon Acipenser desotoi (previously known as Acipenser oxyrinchus desotoi) across the species’ range to inform recovery strategies. We also assessed whether adult survival or recruitment more strongly influences population change.Methods We analyzed adult Gulf Sturgeon capture–recapture data from 1990...
Authors
Stephen W. Parker, William E. Pine, Brian D. Healy, James E. Hines
Land cover change within wetland complexes at Dixie Meadows, Churchill County, Nevada: 2015 – 2023 Land cover change within wetland complexes at Dixie Meadows, Churchill County, Nevada: 2015 – 2023
Dixie Meadows, Nevada, is a system of geothermal springs and seeps that feed a complex of marshes and wetland meadows that are located within lands managed by the Bureau of Land Management (BLM) and the Department of Defense (DOD). A previous U.S. Geological Survey report documented variability in satellite imagery-based land cover classifications for seven wetland complexes at near...
Authors
Joshua Caster, Joel B. Sankey, Nathaniel Bransky
Optimizing the effectiveness of connectivity modifiers to reduce dryland degradation Optimizing the effectiveness of connectivity modifiers to reduce dryland degradation
Dryland degradation from unsustainable land use and increasing aridity often manifests as bare, interconnected areas that facilitate the loss or redistribution of resources (soil, seeds, and nutrients) through wind and run-off. Physical structures like branches and stick bundles, which disrupt these pathways and retain resources, are crucial for rehabilitation and restoration...
Authors
Kristina E. Young, Brandon L. Edwards, Michael C. Duniway, Nicholas P. Webb
Biocrust mosses and cyanobacteria exhibit distinct carbon uptake responses to variations in precipitation amount and frequency Biocrust mosses and cyanobacteria exhibit distinct carbon uptake responses to variations in precipitation amount and frequency
Dryland organisms exhibit varied responses to changes in precipitation, including event size, frequency, and soil moisture duration, influencing carbon uptake and reserve management strategies. This principle, central to the pulse-reserve paradigm, has not been thoroughly evaluated in biological soil crusts (biocrusts), essential primary producers on dryland surfaces. We conducted two...
Authors
Kristina E. Young, Osvaldo E. Sala, Anthony Darrouzet-Nardi, Colin L Tucker, Rebecca A Finger-Higgens, Megan Elyse Starbuck, Sasha C. Reed
Flexible phenology of a C4 grass linked to resiliency to seasonal and multiyear drought events in the American southwest Flexible phenology of a C4 grass linked to resiliency to seasonal and multiyear drought events in the American southwest
Rising temperatures are predicted to further limit dryland water availability as droughts become more intense and frequent and seasonal precipitation patterns shift. Vegetation drought stress may increase mortality and cause declines and delays in phenological events, thereby impacting species' capacity to persist and recover from extreme drought conditions. We compare phenological...
Authors
Rebecca A Finger-Higgens, David L. Hoover, Anna C. Knight, Daniel Rodolphe Schlaepfer, Michael C. Duniway
Global methane budget 2000-2020 Global methane budget 2000-2020
Understanding and quantifying the global methane (CH4) budget is important for assessing realistic pathways to mitigate climate change. CH4 is the second most important human-influenced greenhouse gas in terms of climate forcing after carbon dioxide (CO2), and both emissions and atmospheric concentrations of CH4 have continued to increase since 2007 after a temporary pause. The relative...
Authors
Marielle Saunois, Adrien Martinez, Benjamin Poulter, Zhen Zhang, Peter A. Raymond, Pierre Regnier, Josep G. Canadell, Robert B. Jackson, Prabir K. Patra, Philippe Bousquet, Philippe Ciais, Edward J. Dlugokencky, Xin Lan, George H. Allen, David Bastviken, David J. Beerling, Dmitry Belikov, Donald R. Blake, Simona Castaldi, Monica Crippa, Bridget Deemer, Fraser Dennison, Giuseppe Etiope, Nicola Gedney, Lena Höglund-Isaksson, Meredith A. Holgerson, Peter O. Hopcroft, Gustaf Hugelius, Akihiko Ito, Atul K. Jain, Rajesh Janardanan, Matthew S. Johnson, Thomas Kleinen, Paul B. Krummel, Ronny Lauerwald, Tingting Li, Xiangyu Liu, Kyle C. McDonald, Joe R. Melton, Jens Mühle, Jurek Müller, Fabiola Murguia-Flores, Yosuke Niwa, Sergio Noce, Shufen Pan, Robert J. Parker, Changhui Peng, Michel Ramonet, William J. Riley, Gerard Rocher-Ros, Judith A. Rosentreter, Motoki Sasakawa, Arjo Segers, Steven J. Smith, Emily H. Stanley, Joël Thanwerdas, Hanqin Tian, Aki Tsuruta, Francesco N. Tubiello, Thomas S. Weber, Guido R. van der Werf, Douglas E. Worthy, Yi Xi, Yukio Yoshida, Wenxin Zhang, Bo Zheng, Qing Zhu, Qiuan Zhu, Qianlai Zhuang
Trade-offs in designing a participatory acoustic study of bats: Comparison of user engagement and data quality between two ultrasonic detectors Trade-offs in designing a participatory acoustic study of bats: Comparison of user engagement and data quality between two ultrasonic detectors
Technology for the acoustic detection of animals has advanced rapidly over the past few decades. Due to ease of use, consistency, and safety, acoustic methods are particularly useful for science applications that engage the public. In this study, we evaluated the technological and educational trade-offs between 2 acoustic bat detectors in a participatory science application along the...
Authors
Anya Metcalfe, Theodore J. Weller, Carol Fritzinger, Brandon P. Holton, Theodore Kennedy
Advancing broadscale spatial evapotranspiration modelling by incorporating sun-induced chlorophyll fluorescence measurements Advancing broadscale spatial evapotranspiration modelling by incorporating sun-induced chlorophyll fluorescence measurements
Evapotranspiration (ET) describes the sum of water transfer from the ground surface through soil evaporation and water loss from leaf stomata into the atmosphere − critical factors linking the global water and carbon cycles. Myriad ET models based on remote sensing data provide spatially continuous estimates of ET; however, leaf photosynthetic information is critical to ensure accurate...
Authors
Sicong Gao, Pamela L. Nagler, William Woodgate, Alfredo Huete, Tanya M. Doody
Satellite-based evidence of recent decline in global forest recovery rate from tree mortality events Satellite-based evidence of recent decline in global forest recovery rate from tree mortality events
Climate-driven forest mortality events have been extensively observed in recent decades, prompting the question of how quickly these affected forests can recover their functionality following such events. Here we assessed forest recovery in vegetation greenness (normalized difference vegetation index) and canopy water content (normalized difference infrared index) for 1,699 well...
Authors
Yuchao Yan, Songbai Hong, Anping Chen, Josep Peñuelas, Craig D. Allen, William M. Hammond, Seth M. Munson, Ranga B. Myneni, Shilong Piao