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Articles 211 - 240 of 662
Full-Text Articles in Biology
Sodah: The Soils Data Harmonization Database, An Open-Source Synthesis Of Soil Data From Research Networks, Version 1.0, Marie-Anne De Graaff
Sodah: The Soils Data Harmonization Database, An Open-Source Synthesis Of Soil Data From Research Networks, Version 1.0, Marie-Anne De Graaff
Biology Faculty Publications and Presentations
Data collected from research networks present opportunities to test theories and develop models about factors responsible for the long-term persistence and vulnerability of soil organic matter (SOM). Synthesizing datasets collected by different research networks presents opportunities to expand the ecological gradients and scientific breadth of information 55 available for inquiry. Synthesizing these data, are challenging, especially considering the legacy of soils data that has already been collected and an expansion of new network science initiatives. To facilitate this effort, here we present the SOils DAta Harmonization database (SoDaH; https://lter.github.io/som-website, last accessed 15 July 2020), a flexible database designed to harmonize …
A Pilot Study Of Near-Field Airborne Particle Concentrations In Young Children Undergoing High Flow Nasal Cannula Therapy., Elliott T. Gall, Aurélie Laguerre, Michelle Noelck, Annalise Van Meurs, Jared A. Austin, Byron A. Foster
A Pilot Study Of Near-Field Airborne Particle Concentrations In Young Children Undergoing High Flow Nasal Cannula Therapy., Elliott T. Gall, Aurélie Laguerre, Michelle Noelck, Annalise Van Meurs, Jared A. Austin, Byron A. Foster
Biology Faculty Publications and Presentations
Background High flow nasal cannula therapy (HFNC) may increase aerosol generation, putting healthcare workers at risk, including from SARS-CoV-2. Aim This study examined whether use of HFNC increases near-field aerosols and if there is a relationship with flow rate. Methods Subjects aged four weeks to 24 months were recruited. Each child received HFNC therapy at different flow rates. Three stations with particle counters were deployed to measure particle concentrations and dispersion in the room: station one within 0.5 m, station two at 2 m, and station three on the other side of the room. We measured carbon dioxide (CO2) and …
The American Kestrel (Falco Sparverius) Genoscape: Implications For Monitoring, Management, And Subspecies Boundaries, Michaela Brinkmeyer, Julie A. Heath
The American Kestrel (Falco Sparverius) Genoscape: Implications For Monitoring, Management, And Subspecies Boundaries, Michaela Brinkmeyer, Julie A. Heath
Biology Faculty Publications and Presentations
Identifying population genetic structure is useful for inferring evolutionary process and comparing the resulting structure with subspecies boundaries can aid in species management. The American Kestrel (Falco sparverius) is a widespread and highly diverse species with 17 total subspecies, only 2 of which are found north of U.S./Mexico border (F. s. paulus is restricted to southeastern United States, while F. s. sparverius breeds across the remainder of the U.S. and Canadian distribution). In many parts of their U.S. and Canadian range, American Kestrels have been declining, but it has been difficult to interpret demographic trends without a …
Otto Warburg And His Contributions To The Screw Pine Family (Pandanaceae), Martin W. Callmander, Robert Vogt, Anna Donatelli, Sven Buerki, Chiara Nepi
Otto Warburg And His Contributions To The Screw Pine Family (Pandanaceae), Martin W. Callmander, Robert Vogt, Anna Donatelli, Sven Buerki, Chiara Nepi
Biology Faculty Publications and Presentations
Otto Warburg (1859–1938) had a great interest in tropical botany. He travelled in South-East Asia and the South Pacific between 1885 and 1889 and brought back a considerable collection of plant specimens from this expedition later donated to the Royal Botanical Museum in Berlin. Warburg published the first comprehensive monograph on the family Pandanaceae in 1900 in the third issue of Das Pflanzenreich established and edited by Adolf Engler (1844–1930). The aim of this article is to clarify the taxonomy, nomenclature and typification of Warburg's contributions to the Pandanaceae. Considerable parts of Warburg's original material was destroyed in Berlin …
Weather Affects Post-Fire Recovery Of Sagebrush-Steppe Communities And Model Transferability Among Sites, Cara Applestein, T. Trevor Caughlin, Matthew J. Germino
Weather Affects Post-Fire Recovery Of Sagebrush-Steppe Communities And Model Transferability Among Sites, Cara Applestein, T. Trevor Caughlin, Matthew J. Germino
Biology Faculty Publications and Presentations
Altered climate, including weather extremes, can cause major shifts in vegetative recovery after disturbances. Predictive models that can identify the separate and combined temporal effects of disturbance and weather on plant communities and that are transferable among sites are needed to guide vulnerability assessments and management interventions. We asked how functional group abundance responded to time since fire and antecedent weather, if long-term vegetation trajectories were better explained by initial post-fire weather conditions or by general five-year antecedent weather, and if weather effects helped predict post-fire vegetation abundances at a new site. We parameterized models using a 30- yr vegetation …
Low Activities Of Digestive Enzymes In The Guts Of Herbivorous Grouse (Aves: Tetraoninae), Jennifer Sorensen Forbey
Low Activities Of Digestive Enzymes In The Guts Of Herbivorous Grouse (Aves: Tetraoninae), Jennifer Sorensen Forbey
Biology Faculty Publications and Presentations
Avian herbivores face the exceptional challenge of digesting recalcitrant plant material while under the selective pressure to reduce gut mass as an adaptation for fight. One mechanism by which avian herbivores may overcome this challenge is to maintain high activities of intestinal enzymes that facilitate the digestion and absorption of nutrients. However, previous studies in herbivorous animals provide equivocal evidence as to how activities of digestive enzymes may be adapted to herbivorous diets. For example, “rate-maximizing” herbivores generally exhibit rapid digesta transit times and high activities of digestive enzymes. Conversely, “yield-maximizing” herbivores utilize long gut retention times and express lower …
Male-Biased Dispersal In A Fungus-Gardening Ant Symbiosis, Alix E. Matthews, Katrin Kellner, Jon N. Seal
Male-Biased Dispersal In A Fungus-Gardening Ant Symbiosis, Alix E. Matthews, Katrin Kellner, Jon N. Seal
Biology Faculty Publications and Presentations
For nearly all organisms, dispersal is a fundamental life-history trait that can shape their ecology and evolution. Variation in dispersal capabilities within a species exists and can influence population genetic structure and ecological interactions. In fungus-gardening (attine) ants, co-dispersal of ants and mutualistic fungi is crucial to the success of this obligate symbiosis. Female-biased dispersal (and gene flow) may be favored in attines because virgin queens carry the responsibility of dispersing the fungi, but a paucity of research has made this conclusion difficult. Here, we investigate dispersal of the fungus-gardening ant Trachymyrmex septentrionalis using a combination of maternally (mitochondrial DNA) …
Events Associated With Dna Replication Disruption Are Not Observed In Hydrogen Peroxide-Treated Escherichia Coli, Chettar A. Hoff, Sierra S. Schmidt, Brandy J. Hackert, Travis K. Worley, Justin Courcelle, Charmain Courcelle
Events Associated With Dna Replication Disruption Are Not Observed In Hydrogen Peroxide-Treated Escherichia Coli, Chettar A. Hoff, Sierra S. Schmidt, Brandy J. Hackert, Travis K. Worley, Justin Courcelle, Charmain Courcelle
Biology Faculty Publications and Presentations
UV irradiation induces pyrimidine dimers that block polymerases and disrupt the replisome. Restoring replication depends on the recF pathway proteins which process and maintain the replication fork DNA to allow the lesion to be repaired before replication resumes. Oxidative DNA lesions, such as those induced by hydrogen peroxide (H2O2), are often thought to require similar processing events, yet far less is known about how cells process oxidative damage during replication. Here we show that replication is not disrupted by H2O2-induced DNA damage in vivo. Following an initial inhibition, replication resumes in …
Host-Specific Symbioses And The Microbial Prey Of A Pelagic Tunicate (Pyrosoma Atlanticum), Anne W. Thompson, Anne C. Ward, Carey P. Sweeney, Kelly R. Sutherland
Host-Specific Symbioses And The Microbial Prey Of A Pelagic Tunicate (Pyrosoma Atlanticum), Anne W. Thompson, Anne C. Ward, Carey P. Sweeney, Kelly R. Sutherland
Biology Faculty Publications and Presentations
Pyrosomes are widely distributed pelagic tunicates that have the potential to reshape marine food webs when they bloom. However, their grazing preferences and interactions with the background microbial community are poorly understood. This is the first study of the marine microorganisms associated with pyrosomes undertaken to improve the understanding of pyrosome biology, the impact of pyrosome blooms on marine microbial systems, and microbial symbioses with marine animals. The diversity, relative abundance, and taxonomy of pyrosome-associated microorganisms were compared to seawater during a Pyrosoma atlanticum bloom in the Northern California Current System using high-throughput sequencing of the 16S rRNA gene, microscopy, …
Microarthropod Contributions To Fitness Variation In The Common Moss ., Erin E. Shortlidge, Sarah B. Carey, Adam C. Payton, Stuart F. Mcdaniel, Todd N. Rosenstiel, Sarah M. Eppley
Microarthropod Contributions To Fitness Variation In The Common Moss ., Erin E. Shortlidge, Sarah B. Carey, Adam C. Payton, Stuart F. Mcdaniel, Todd N. Rosenstiel, Sarah M. Eppley
Biology Faculty Publications and Presentations
The evolution of sustained plant-animal interactions depends critically upon genetic variation in the fitness benefits from the interaction. Genetic analyses of such interactions are limited to a few model systems, in part because genetic variation may be absent or the interacting species may be experimentally intractable. Here, we examine the role of sperm-dispersing microarthropods in shaping reproduction and genetic variation in mosses. We established experimental mesocosms with known moss genotypes and inferred the parents of progeny from mesocosms with and without microarthropods, using a pooled sequencing approach. Moss reproductive rates increased fivefold in the presence of microarthropods, relative to control …
Embryo Ecology: Developmental Synchrony And Asynchrony In The Embryonic Development Of Wild Annual Fish Populations, Matej Polacik, Milan Vrtilek, Martin Reichard, Jakub Zak, Radim Blazek, Jason Podrabsky
Embryo Ecology: Developmental Synchrony And Asynchrony In The Embryonic Development Of Wild Annual Fish Populations, Matej Polacik, Milan Vrtilek, Martin Reichard, Jakub Zak, Radim Blazek, Jason Podrabsky
Biology Faculty Publications and Presentations
Embryo–environment interactions are of paramount importance during the development of all organisms, and impacts during this period can echo far into later stages of ontogeny. African annual fish of the genus Nothobranchius live in temporary pools and their eggs survive the dry season in the dry bottom substrate of the pools by entering a facultative developmental arrest termed diapause. Uniquely among animals, the embryos (encased in eggs) may enter diapause at three different developmental stages. Such a system allows for the potential to employ different regulation mechanisms for each diapause. We sampled multiple Nothobranchius embryo banks across the progressing season, …
The Genetic Architecture Of Sexual Dimorphism In The Moss, Leslie M. Kollar, Scott Kiel, Ashley J. James, Cody T. Carnley, Danielle N. Scola, Taylor N. Clark, Tikahari Khanal, Todd Rosenstiel, Elliott T. Gall, Karl Grieshop, Stuart F. Mcdaniel
The Genetic Architecture Of Sexual Dimorphism In The Moss, Leslie M. Kollar, Scott Kiel, Ashley J. James, Cody T. Carnley, Danielle N. Scola, Taylor N. Clark, Tikahari Khanal, Todd Rosenstiel, Elliott T. Gall, Karl Grieshop, Stuart F. Mcdaniel
Biology Faculty Publications and Presentations
A central problem in evolutionary biology is to identify the forces that maintain genetic variation for fitness in natural populations. Sexual antagonism, in which selection favours different variants in males and females, can slow the transit of a polymorphism through a population or can actively maintain fitness variation. The amount of sexually antagonistic variation to be expected depends in part on the genetic architecture of sexual dimorphism, about which we know relatively little. Here, we used a multivariate quantitative genetic approach to examine the genetic architecture of sexual dimorphism in a scent-based fertilization syndrome of the moss We found sexual …
A Caenorhabditis Elegans Behavioral Assay Distinguishes Early Stage Prostate Cancer Patient Urine From Controls., Morgan Thompson, Noemi Sarabia Feria, Ally Yoshioka, Eugene Tu, Fehmi Civitci, Suzanne Estes, Josiah T. Wagner
A Caenorhabditis Elegans Behavioral Assay Distinguishes Early Stage Prostate Cancer Patient Urine From Controls., Morgan Thompson, Noemi Sarabia Feria, Ally Yoshioka, Eugene Tu, Fehmi Civitci, Suzanne Estes, Josiah T. Wagner
Biology Faculty Publications and Presentations
Current methods for non-invasive prostate cancer (PrCa) detection have a high false-positive rate and often result in unnecessary biopsies. Previous work has suggested that urinary volatile organic compound (VOC) biomarkers may be able to distinguish PrCa cases from benign disease. The behavior of the nematode has been proposed as a tool to take advantage of these potential VOC profiles. To test the ability of Bristol N2 to distinguish PrCa cases from controls, we performed chemotaxis assays using human urine samples collected from men screened for PrCa. Behavioral response of nematodes towards diluted urine from PrCa cases were compared to controls …
A Multiplexed, Automated Evolution Pipeline Enables Scalable Discovery And Characterization Of Biosensors, Brent Townshend, Joy S. Xiang, Gabriel Manzanarez, Eric J. Hayden, Christina D. Smolke
A Multiplexed, Automated Evolution Pipeline Enables Scalable Discovery And Characterization Of Biosensors, Brent Townshend, Joy S. Xiang, Gabriel Manzanarez, Eric J. Hayden, Christina D. Smolke
Biology Faculty Publications and Presentations
Biosensors are key components in engineered biological systems, providing a means of measuring and acting upon the large biochemical space in living cells. However, generating small molecule sensing elements and integrating them into in vivo biosensors have been challenging. Here, using aptamer-coupled ribozyme libraries and a ribozyme regeneration method, de novo rapid in vitro evolution of RNA biosensors (DRIVER) enables multiplexed discovery of biosensors. With DRIVER and high-throughput characterization (CleaveSeq) fully automated on liquid-handling systems, we identify and validate biosensors against six small molecules, including five for which no aptamers were previously found. DRIVER-evolved biosensors are applied directly to regulate …
Macrophages Expedite Cell Proliferation Of Prostate Intraepithelial Neoplasia Through Their Downstream Target Erk, Mikalah U. Thomas, Justin K. Messex, Tu Dang, Sarki A. Abdulkadir, Cheryl L. Jorcyk, Geou-Yarh Liou
Macrophages Expedite Cell Proliferation Of Prostate Intraepithelial Neoplasia Through Their Downstream Target Erk, Mikalah U. Thomas, Justin K. Messex, Tu Dang, Sarki A. Abdulkadir, Cheryl L. Jorcyk, Geou-Yarh Liou
Biology Faculty Publications and Presentations
The risk factors for prostate cancer include a high-fat diet and obesity, both of which are associated with an altered cell environment including increased inflammation. It has been shown that chronic inflammation due to a high-fat diet or bacterial infection has the potential to accelerate prostate cancer as well as its precursor, prostatic intraepithelial neoplasia (PIN), development. However, the underlying mechanism of how chronic inflammation promotes prostate cancer development, especially PIN, remains unclear. In this study, we showed that more macrophages were present in PIN areas as compared to the normal areas of human prostate. When co-culturing PIN cells with …
Is This Science? Students' Experiences Of Failure Make A Research-Based Course Feel Authentic, Emma C. Goodwin, Vladimir Anokhin, Mackenzie J. Gray, Daniel E. Zajic, Jason Podrabsky, Erin E. Shortlidge
Is This Science? Students' Experiences Of Failure Make A Research-Based Course Feel Authentic, Emma C. Goodwin, Vladimir Anokhin, Mackenzie J. Gray, Daniel E. Zajic, Jason Podrabsky, Erin E. Shortlidge
Biology Faculty Publications and Presentations
Course-based undergraduate research experiences (CUREs) and inquiry-based curricula both expose students to the scientific process. CUREs additionally engage students in novel and scientifically relevant research, with the intention of providing an "authentic" research experience. However, we have little understanding of which course design elements impact students' beliefs that they are experiencing "authentic" research. We designed a study to explore introductory biology students' perceptions of research authenticity in CURE and inquiry classes. Using the Laboratory Course Assessment Survey, we found that students in CURE sections perceived higher levels of authentic research elements than students in inquiry-based sections. To identify specific factors …
Synergistic Epistasis Enhances The Co-Operativity Of Mutualistic Interspecies Interactions., Serdar Turkarslan, Nejc Stopnisek, Anne W. Thompson, Christina E. Arens, Jacob J. Valenzuela, James Wilson, Kristopher A. Hunt, Jessica Hardwicke, Adrián López García De Lomana, Sujung Lim, Yee Mey Seah, Ying Fu, Liyou Wu, Jizhong Zhou, Kristina L. Hillesland, David A. Stahl, Nitin S. Baliga
Synergistic Epistasis Enhances The Co-Operativity Of Mutualistic Interspecies Interactions., Serdar Turkarslan, Nejc Stopnisek, Anne W. Thompson, Christina E. Arens, Jacob J. Valenzuela, James Wilson, Kristopher A. Hunt, Jessica Hardwicke, Adrián López García De Lomana, Sujung Lim, Yee Mey Seah, Ying Fu, Liyou Wu, Jizhong Zhou, Kristina L. Hillesland, David A. Stahl, Nitin S. Baliga
Biology Faculty Publications and Presentations
Early evolution of mutualism is characterized by big and predictable adaptive changes, including the specialization of interacting partners, such as through deleterious mutations in genes not required for metabolic cross-feeding. We sought to investigate whether these early mutations improve cooperativity by manifesting in synergistic epistasis between genomes of the mutually interacting species. Specifically, we have characterized evolutionary trajectories of syntrophic interactions of Desulfovibrio vulgaris (Dv) with Methanococcus maripaludis (Mm) by longitudinally monitoring mutations accumulated over 1000 generations of nine independently evolved communities with analysis of the genotypic structure of one community down to the single-cell level. We discovered extensive parallelism …
Noise Distracts Foraging Bats, Louise C. Allen, Nickolay I. Hristov, Juliette J. Rubin, Joseph T. Lightsey, Jesse R. Barber
Noise Distracts Foraging Bats, Louise C. Allen, Nickolay I. Hristov, Juliette J. Rubin, Joseph T. Lightsey, Jesse R. Barber
Biology Faculty Publications and Presentations
Predators frequently must detect and localize their prey in challenging environments. Noisy environments have been prevalent across the evolutionary history of predator–prey relationships, but now with increasing anthropogenic activities noise is becoming a more prominent feature of many landscapes. Here, we use the gleaning pallid bat, Antrozous pallidus, to investigate the mechanism by which noise disrupts hunting behaviour. Noise can primarily function to mask—obscure by spectrally overlapping a cue of interest, or distract—occupy an animal's attentional or other cognitive resources. Using band-limited white noise treatments that either overlapped the frequencies of a prey cue or did not …
G2pminer: A Genome To Phenome Literature Review Approach, John M.A. Wojahn, Stephanie J. Galla, Anthony E. Melton, Sven Buerki
G2pminer: A Genome To Phenome Literature Review Approach, John M.A. Wojahn, Stephanie J. Galla, Anthony E. Melton, Sven Buerki
Biology Faculty Publications and Presentations
There is a gap in the conceptual framework linking genes to phenotypes (G2P) for non-model organisms, as most non-model organisms do not yet have genomic resources readily available. To address this, researchers often perform literature reviews to understand G2P linkages by curating a list of likely gene candidates, hinging upon other studies already conducted in closely related systems. Sifting through hundreds to thousands of articles is a cumbersome task that slows down the scientific process and may introduce bias into a study. To fill this gap, we created G2PMineR, a free and open source literature mining tool developed specifically for …
Artificial Nightlight Alters The Predator–Prey Dynamics Of An Apex Carnivore, Jesse R. Barber
Artificial Nightlight Alters The Predator–Prey Dynamics Of An Apex Carnivore, Jesse R. Barber
Biology Faculty Publications and Presentations
Artificial nightlight is increasingly recognized as an important environmental disturbance that influences the habitats and fitness of numerous species. However, its effects on wide‐ranging vertebrates and their interactions remain unclear. Light pollution has the potential to amplify land‐use change, and as such, answering the question of how this sensory stimulant affects behavior and habitat use of species valued for their ecological roles and economic impacts is critical for conservation and land‐use planning. Here, we combined satellite‐derived estimates of light pollution, with GPS‐data from cougars Puma concolor (n = 56), mule deer Odocoileus hemionus (n = 263) and locations of cougar‐killed …
Modulation Of Bacterial Fitness And Virulence Through Antisense Rnas, Jess A. Millar, Rahul Raghavan
Modulation Of Bacterial Fitness And Virulence Through Antisense Rnas, Jess A. Millar, Rahul Raghavan
Biology Faculty Publications and Presentations
Regulatory RNAs contribute to gene expression control in bacteria. Antisense RNAs (asRNA) are a class of regulatory RNAs that are transcribed from opposite strands of their target genes. Typically, these untranslated transcripts bind to cognate mRNAs and rapidly regulate gene expression at the post-transcriptional level. In this article, we review asRNAs that modulate bacterial fitness and increase virulence. We chose examples that underscore the variety observed in nature including, plasmid- and chromosome-encoded asRNAs, a riboswitch-regulated as RNA, and as RNAs that require other RNAs or RNA binding proteins for stability and activity. We explore how as RNAs improve bacterial fitness …
Editor's Choice: Honoring Joel Asaph Allen, Luis A. Ruedas
Editor's Choice: Honoring Joel Asaph Allen, Luis A. Ruedas
Biology Faculty Publications and Presentations
Joel Asaph Allen (19 July 1838 to 29 August 1921; Fig. 1) was a formative figure in the early years of the American Society of Mammalogists (ASM). Prior to the constitution of the Society, Allen had been appointed by Hartley H. T. Jackson as a member of the Committee on the Organization of the Mammal Society (Hoffmeister 1969). By all accounts a retiring individual, he was elected to honorary membership in the Society at the first meeting of the ASM (Washington, DC, 3–4 April 1919—Hoffmeister 1969). Honorary Membership is “the highest honor that the Society bestows” (Genoways and Freeman 2001).
Niche Partitioning Of Low-Light Adapted Prochlorococcus Subecotypes Across Oceanographic Gradients Of The North Pacific Subtropical Front, Anne W. Thompson, Kathleen Kouba, Nathan A. Ahlgren
Niche Partitioning Of Low-Light Adapted Prochlorococcus Subecotypes Across Oceanographic Gradients Of The North Pacific Subtropical Front, Anne W. Thompson, Kathleen Kouba, Nathan A. Ahlgren
Biology Faculty Publications and Presentations
The cyanobacterium Prochlorococcus is the most abundant photosynthetic cell on Earth and contributes to global ocean carbon cycling and food webs. Prochlorococcus is known for its extensive diversity that falls into two groups of ecotypes, the low‐light (LL) and high‐light (HL) adapted ecotypes. Previous work has shown niche partitioning of the very abundant HL adapted ecotypes and subecotypes across oceanographic gradients including temperature, nutrients, and day length. However, niche partitioning of subecotypes within the LL adapted ecotypes has not been studied as well because they are less abundant and less accessible than surface, HL populations. Through high‐throughput, cyanobacterial‐specific, sequencing of …
Male Fetal Sex Affects Uteroplacental Angiogenesis In Growth Restriction Mouse Model, Jessica F. Hebert, Jess A. Millar, Rahul Raghavan, Amie L. Romney, Jason Podrabsky, Monique Y. Rennie, Allison Felker, Perrie O'Tierney-Ginn, Mayu Morita, Elizabeth A. Dupriest, Terry K. Morgan
Male Fetal Sex Affects Uteroplacental Angiogenesis In Growth Restriction Mouse Model, Jessica F. Hebert, Jess A. Millar, Rahul Raghavan, Amie L. Romney, Jason Podrabsky, Monique Y. Rennie, Allison Felker, Perrie O'Tierney-Ginn, Mayu Morita, Elizabeth A. Dupriest, Terry K. Morgan
Biology Faculty Publications and Presentations
Abnormally increased angiotensin II activity related to maternal angiotensinogen (AGT) genetic variants, or aberrant receptor activation, is associated with small-for-gestational-age (SGA) babies and abnormal uterine spiral artery remodeling in humans. Our group studies a murine AGT gene titration transgenic (TG; 3-copies of the AGT gene) model, which has a 20% increase in AGT expression mimicking a common human AGT genetic variant (A[-6]G) associated with intrauterine growth restriction (IUGR) and spiral artery pathology. We hypothesized that aberrant maternal AGT expression impacts pregnancy-induced uterine spiral artery angiogenesis in this mouse model leading to IUGR. We controlled for fetal sex and fetal genotype …
A Record Of Vapour Pressure Deficit Preserved In Wood And Soil Across Biomes, Adrian Broz, Gregory J. Retallack, Toby M. Maxwell, Lucas C.R. Silva
A Record Of Vapour Pressure Deficit Preserved In Wood And Soil Across Biomes, Adrian Broz, Gregory J. Retallack, Toby M. Maxwell, Lucas C.R. Silva
Biology Faculty Publications and Presentations
The drying power of air, or vapour pressure deficit (VPD), is an important measurement of potential plant stress and productivity. Estimates of VPD values of the past are integral for understanding the link between rising modern atmospheric carbon dioxide (pCO2) and global water balance. A geological record of VPD is needed for paleoclimate studies of past greenhouse spikes which attempt to constrain future climate, but at present there are few quantitative atmospheric moisture proxies that can be applied to fossil material. Here we show that VPD leaves a permanent record in the slope (S) of least-squares …
Gateway Scholarships In Biological Sciences: Year 4 Annual Report, Vicki Stieha, Julia Oxford, Amy Ulappa, Brittnee Earl, Jennifer Forbey, Laura Bond, Kevin Feris, Jocelyn Cullers, Caleb Hartman
Gateway Scholarships In Biological Sciences: Year 4 Annual Report, Vicki Stieha, Julia Oxford, Amy Ulappa, Brittnee Earl, Jennifer Forbey, Laura Bond, Kevin Feris, Jocelyn Cullers, Caleb Hartman
Biology Faculty Publications and Presentations
This report summarizes grant activities, progress toward goals, and broader impacts of the Gateway Scholars Program in the Boise State Department of Biological Sciences during the 2020-21 academic year.
Does Experimentally Quieting Traffic Noise Benefit People And Birds?, Mitchell J. Levenhagen, Christopher J.W. Mcclure, Jesse R. Barber
Does Experimentally Quieting Traffic Noise Benefit People And Birds?, Mitchell J. Levenhagen, Christopher J.W. Mcclure, Jesse R. Barber
Biology Faculty Publications and Presentations
Protected natural areas are not free from noise, especially noise generated by traffic within park boundaries. Natural soundscapes are important for maintaining community structure, providing positive visitor experiences, and increasing visitor support for management actions that reduce impacts on natural resources. To test experimental quieting as a strategy to increase both wildlife habitat quality and visitor experience, we enforced decreased speed limits and presented educational signage to reduce sound levels along a road system in an alternating, on–off block design within Grand Teton National Park, Wyoming, USA. We continuously recorded background sound levels while conducting bird space use assessments and …
A Repeated Triple Lysine Motif Anchors Complexes Containing Bone Sialoprotein And The Type Xi Collagen A1 Chain Involved In Bone Mineralization, Jeff P. Gorski, Nichole T. Franz, Daniel Pernoud, Andrew Keightley, David R. Eyre, Julia Thom Oxford
A Repeated Triple Lysine Motif Anchors Complexes Containing Bone Sialoprotein And The Type Xi Collagen A1 Chain Involved In Bone Mineralization, Jeff P. Gorski, Nichole T. Franz, Daniel Pernoud, Andrew Keightley, David R. Eyre, Julia Thom Oxford
Biology Faculty Publications and Presentations
While details remain unclear, initiation of woven bone mineralization is believed to be mediated by collagen and potentially nucleated by bone sialoprotein (BSP). Interestingly, our recent publication showed that BSP and type XI collagen form complexes in mineralizing osteoblastic cultures. To learn more, we examined the protein composition of extracellular sites of de novo hydroxyapatite deposition which were enriched in BSP and Col11a1 containing an alternatively spliced “6b” exonal sequence. An alternate splice variant “6a” sequence was not similarly co-localized. BSP and Col11a1 co-purify upon ion-exchange chromatography or immunoprecipitation. Binding of the Col11a1 “6b” exonal sequence to bone sialoprotein was …
Monitoring Tropical Forest Succession At Landscape Scales Despite Uncertainty In Landsat Time Series, T. Trevor Caughlin, Cristina Barber, Gregory P. Asner, Nancy F. Glenn, Stephanie A. Bohlaman, Chris H. Wilson
Monitoring Tropical Forest Succession At Landscape Scales Despite Uncertainty In Landsat Time Series, T. Trevor Caughlin, Cristina Barber, Gregory P. Asner, Nancy F. Glenn, Stephanie A. Bohlaman, Chris H. Wilson
Biology Faculty Publications and Presentations
Forecasting rates of forest succession at landscape scales will aid global efforts to restore tree cover to millions of hectares of degraded land. While optical satellite remote sensing can detect regional land cover change, quantifying forest structural change is challenging. We developed a state-space modeling framework that applies Landsat satellite data to estimate variability in rates of natural regeneration between sites in a tropical landscape. Our models work by disentangling measurement error in Landsat-derived spectral reflectance from process error related to successional variability.We applied our modeling framework to rank rates of forest succession between 10 naturally regenerating sites in Southwestern …
Multiple Complementary Studies Clarify Which Co-Occurring Congener Presents The Greatest Hybridization Threat To A Rare Texas Endemic Wildflower (Hibiscus Dasycalyx: Malvaceae), Melody P. Sain, Julia Norrell-Tober, Katherine Barthel, Megan Seawright, Alyssa Blanton, Kate L. Hertweck, John S. Placyk, Jr., Randall Small, Lance R. Williams, Marsha G. Williams, Joshua A. Banta
Multiple Complementary Studies Clarify Which Co-Occurring Congener Presents The Greatest Hybridization Threat To A Rare Texas Endemic Wildflower (Hibiscus Dasycalyx: Malvaceae), Melody P. Sain, Julia Norrell-Tober, Katherine Barthel, Megan Seawright, Alyssa Blanton, Kate L. Hertweck, John S. Placyk, Jr., Randall Small, Lance R. Williams, Marsha G. Williams, Joshua A. Banta
Biology Faculty Publications and Presentations
The Neches River Rose Mallow (Hibiscus dasycalyx) is a rare wildflower endemic to Texas that is federally protected in the U.S.A. While previous work suggests that H. dasycalyx may be hybridizing with its widespread congeners, the Halberd-leaved Rose Mallow (H. laevis) and the Woolly Rose Mallow (H. moscheutos), this has not been studied in detail. We evaluated the relative threats to H. dasycalyx posed by hybridization with H. laevis and H. moscheutos by 1) examining their relatedness to one another via modern phylogenomic methods, 2) examining their ecological (dis)similarities to one another using ecological niche modeling, and 3) looking for …