Life Sciences Commons^™

Onion Peel Extract Prevents Intestinal Inflammation Via Amk-Activated Protein Kinase Activation In Caco-2/Ht-29 Cells, Olugbenga Balogun, Cindi Brownmiller, Sun-Ok Lee, Hye Won Kong

Food Science Faculty Publications and Presentations

Background: Obesogenic diets cause intestinal inflammation and dysfunction. Polyphenols have shown a positive impact on reducing inflammation in in vitro studies. However, their bioactivity may not be the same in the in vivo system due to structural alteration by the gastrointestinal digestive process. The purpose of this study was to investigate the anti-inflammatory effect of onion peel and its major bioactive compound, quercetin, in the intestine and further examine the impact of intestinal digestion on this effect. Methods: Onion peel extract (OPE) and quercetin (Q) were digested using gastrointestinal digestive enzymes in vitro and then treated into lipopolysaccharide (LPS)-stimulated Caco-2/HT-29 …

Shade, Height Of Cut, And Plant Growth Regulator Effects On Bermudagrass And Zoysiagrass Putting Greens, Thomas E. Walton, John Mccalla, Douglas E. Karcher, W. J. Hutchens, Ambika Chandra, Michael D. Richardson

Horticulture Faculty Publications and Presentations

Warm-season turfgrasses, especially hybrid bermudagrass (Cynodon dactylon (L.) Pers × Cynodon transvaalensis Burtt-Davy), continue to be widely used on golf course putting greens in tropical and subtropical climates globally and are also gaining popularity in the transition zone region of the United States. Hybrid bermudagrass produces a high-quality putting green surface; however, it has relatively poor shade and cold tolerance. Recently, fine-textured zoysiagrass (Zoysia spp.) cultivars have been released and may be another potential option for golf course putting greens, especially since zoysiagrass is generally considered more shade tolerant than bermudagrass. “Lazer (DALZ 1308)” zoysiagrass (Zoysia …

Selective Pericyte Recruitment To Ec-Lined Tubes, Vessel Assembly Enhancement Through Pericyte Timp-3 Induction, And Pericyte Tbx2 In Capillary Formation And Maturation, Ksenia Marilyn Yrigoin Kaluguina

USF Tampa Graduate Theses and Dissertations

Capillaries, the smallest blood vascular networks, are formed by narrow and elongated endothelial cell (EC)-lined tubes with associated pericytes anchored to the abluminal tube surface. Our laboratory demonstrated that dynamic interactions between ECs and pericytes during capillary tube network assembly are required for basement membrane matrix deposition and maturation. We have also shown that key EC-derived factors promote pericyte recruitment, proliferation, and pericyte-induced basement membrane formation during capillary assembly. In the first section, we aim to identify if vascular smooth muscle cells (VSMCs) respond to the same factors and have the same invasive ability as pericytes since they are both …

Carbon Restoration Potential On Global Land Under Water Resource Constraints, Shouzhang Peng, César Terrer, Benjamin Smith, Philippe Ciais, Qinggong Han, Jialan Nan, Joshua B. Fisher, Liang Chen, Lei Deng, Kailiang Yu

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Ecosystem restoration is a critical nature-based solution to mitigate climate change. However, the carbon sequestration potential of restoration, defined as the maximum achievable carbon storage, has likely been overestimated because previous studies have not adequately accounted for the competition between ecosystem water demands for maximizing carbon sequestration and human water needs. Here we used a comprehensive process-based model combined with extensive land-use data and evaporation recycling accounting for land–atmosphere feedback to estimate the water requirements associated with ecosystem restoration. We found that achieving the carbon sequestration potential of restoration would significantly reduce global water availability per capita by 26%, posing …

Treatment Modifications And Development For Mucopolysaccharidosis Type I, Sarah Hurt

Arts & Sciences Graduate Student Theses and Dissertations

Mucopolysaccharidosis type I (MPS I) is a pediatric lysosomal storage disorder caused by biallelic pathogenic variants in the α-L-iduronidase (IDUA) gene that lead to the loss of a functional form of IDUA enzyme. Loss of this necessary enzyme leads to pathogenic accumulation of glycosaminoglycans (GAG) in lysosomes, leading to cellular distention and dysfunction. IDUA is necessary in every cell of the body and, as a result, a loss of function leads to clinical manifestations of the disease such as developmental delay, cardiac dysfunction, bone disease (dysostosis multiplex), upper respiratory complications, and premature death. A range of severity occurs, with Hurler …

Treatment Modifications And Development For Mucopolysaccharidosis Type I, Sarah Hurt

Arts & Sciences Graduate Student Theses and Dissertations

Mucopolysaccharidosis type I (MPS I) is a pediatric lysosomal storage disorder caused by biallelic pathogenic variants in the α-L-iduronidase (IDUA) gene that lead to the loss of a functional form of IDUA enzyme. Loss of this necessary enzyme leads to pathogenic accumulation of glycosaminoglycans (GAG) in lysosomes, leading to cellular distention and dysfunction. IDUA is necessary in every cell of the body and, as a result, a loss of function leads to clinical manifestations of the disease such as developmental delay, cardiac dysfunction, bone disease (dysostosis multiplex), upper respiratory complications, and premature death. A range of severity occurs, with Hurler …

Pclaf-Dream Drives Alveolar Cell Plasticity For Lung Regeneration, Bongjun Kim, Yuanjian Huang, Kyung-Pil Ko, Shengzhe Zhang, Gengyi Zou, Moon Jong Kim, Lisandra Vila Ellis, Margherita Paschini, Sohee Jun, Kwon-Sik Park, Jichao Chen, Carla Kim, Jae-Il Park

Faculty, Staff and Student Publications

Cell plasticity, changes in cell fate, is crucial for tissue regeneration. In the lung, failure of regeneration leads to diseases, including fibrosis. However, the mechanisms governing alveolar cell plasticity during lung repair remain elusive. We previously showed that PCLAF remodels the DREAM complex, shifting the balance from cell quiescence towards cell proliferation. Here, we find that PCLAF expression is specific to proliferating lung progenitor cells, along with the DREAM target genes transactivated by lung injury. Genetic ablation of Pclaf impairs AT1 cell repopulation from AT2 cells, leading to lung fibrosis. Mechanistically, the PCLAF-DREAM complex transactivates CLIC4, triggering TGF-β signaling activation, …

Interpreting The Biological Effects Of Protons As A Function Of Physical Quantity: Linear Energy Transfer Or Microdosimetric Lineal Energy Spectrum?, Fada Guan, Lawrence Bronk, Matthew Kerr, Yuting Li, Leslie A Braby, Xiaochun Wang, Clifford Stephan, David R Grosshans, Radhe Mohan

Faculty, Staff and Student Publications

The choice of appropriate physical quantities to characterize the biological effects of ionizing radiation has evolved over time coupled with advances in scientific understanding. The basic hypothesis in radiation dosimetry is that the energy deposited by ionizing radiation initiates all the consequences of exposure in a biological sample (e.g., DNA damage, reproductive cell death). Physical quantities defined to characterize energy deposition have included dose, a measure of the mean energy imparted per unit mass of the target, and linear energy transfer (LET), a measure of the mean energy deposition per unit distance that charged particles traverse in a medium. The …

Interpreting The Biological Effects Of Protons As A Function Of Physical Quantity: Linear Energy Transfer Or Microdosimetric Lineal Energy Spectrum?, Fada Guan, Lawrence Bronk, Matthew Kerr, Yuting Li, Leslie A Braby, Xiaochun Wang, Clifford Stephan, David R Grosshans, Radhe Mohan

Faculty, Staff and Student Publications

The choice of appropriate physical quantities to characterize the biological effects of ionizing radiation has evolved over time coupled with advances in scientific understanding. The basic hypothesis in radiation dosimetry is that the energy deposited by ionizing radiation initiates all the consequences of exposure in a biological sample (e.g., DNA damage, reproductive cell death). Physical quantities defined to characterize energy deposition have included dose, a measure of the mean energy imparted per unit mass of the target, and linear energy transfer (LET), a measure of the mean energy deposition per unit distance that charged particles traverse in a medium. The …

Childhood Neglect Is Associated With Alterations In Neural Prediction Error Signaling And The Response To Novelty, Joseph Aloi, Kathleen I Crum, Karina S Blair, Ru Zhang, Johannah Bashford-Largo, Soonjo Hwang, Nim Tottenham, Matthew Dobbertin, R James R Blair

Faculty, Staff and Student Publications

Background: One in eight children experience early life stress (ELS), which increases risk for psychopathology. ELS, particularly neglect, has been associated with reduced responsivity to reward. However, little work has investigated the computational specifics of this disrupted reward response - particularly with respect to the neural response to Reward Prediction Errors (RPE) - a critical signal for successful instrumental learning - and the extent to which they are augmented to novel stimuli. The goal of the current study was to investigate the associations of abuse and neglect, and neural representation of RPE to novel and non-novel stimuli.

Methods: One hundred …

Interpreting The Biological Effects Of Protons As A Function Of Physical Quantity: Linear Energy Transfer Or Microdosimetric Lineal Energy Spectrum?, Fada Guan, Lawrence Bronk, Matthew Kerr, Yuting Li, Leslie A Braby, Xiaochun Wang, Clifford Stephan, David R Grosshans, Radhe Mohan

Faculty, Staff and Student Publications

The choice of appropriate physical quantities to characterize the biological effects of ionizing radiation has evolved over time coupled with advances in scientific understanding. The basic hypothesis in radiation dosimetry is that the energy deposited by ionizing radiation initiates all the consequences of exposure in a biological sample (e.g., DNA damage, reproductive cell death). Physical quantities defined to characterize energy deposition have included dose, a measure of the mean energy imparted per unit mass of the target, and linear energy transfer (LET), a measure of the mean energy deposition per unit distance that charged particles traverse in a medium. The …

Salvage Reirradiation With Proton Beam Therapy For Locoregionally Recurrent Non-Small Cell Lung Cancer, Matthew S Ning, Abigael Odwuor, Joe Y Chang, Saumil Gandhi, Zhongxing Liao, Aileen Chen, Quynh-Nhu Nguyen, Michael S O'Reilly, Stephen G Chun, Julianna Bronk, David Qian, Percy Lee

Faculty, Staff and Student Publications

Background/objectives: This retrospective study evaluates outcomes of 66 patients who underwent reirradiation (re-RT) with proton beam therapy (PBT) for recurrent non-small cell lung cancer.

Methods: Toxicity was scored via the CTCAE v5.0, and outcomes estimated using the Kaplan-Meier method, with associations evaluated via Cox proportional hazards and logistic regression analyses.

Results: Patients were treated to a median re-RT prescription of 66 Gy/33 fxs (BED10 = 79 Gy; IQR: 71-84 Gy) at an interval of 1.4 years from prior RT. Half (50%) received concurrent chemotherapy. At 14 months follow-up, the median OS and PFS were 5 months (95%CI: 13-17) and 12.5 …

Interpreting The Biological Effects Of Protons As A Function Of Physical Quantity: Linear Energy Transfer Or Microdosimetric Lineal Energy Spectrum?, Fada Guan, Lawrence Bronk, Matthew Kerr, Yuting Li, Leslie A Braby, Xiaochun Wang, Clifford Stephan, David R Grosshans, Radhe Mohan

Faculty, Staff and Student Publications

The choice of appropriate physical quantities to characterize the biological effects of ionizing radiation has evolved over time coupled with advances in scientific understanding. The basic hypothesis in radiation dosimetry is that the energy deposited by ionizing radiation initiates all the consequences of exposure in a biological sample (e.g., DNA damage, reproductive cell death). Physical quantities defined to characterize energy deposition have included dose, a measure of the mean energy imparted per unit mass of the target, and linear energy transfer (LET), a measure of the mean energy deposition per unit distance that charged particles traverse in a medium. The …

Interpreting The Biological Effects Of Protons As A Function Of Physical Quantity: Linear Energy Transfer Or Microdosimetric Lineal Energy Spectrum?, Fada Guan, Lawrence Bronk, Matthew Kerr, Yuting Li, Leslie A Braby, Xiaochun Wang, Clifford Stephan, David R Grosshans, Radhe Mohan

Faculty, Staff and Student Publications

The choice of appropriate physical quantities to characterize the biological effects of ionizing radiation has evolved over time coupled with advances in scientific understanding. The basic hypothesis in radiation dosimetry is that the energy deposited by ionizing radiation initiates all the consequences of exposure in a biological sample (e.g., DNA damage, reproductive cell death). Physical quantities defined to characterize energy deposition have included dose, a measure of the mean energy imparted per unit mass of the target, and linear energy transfer (LET), a measure of the mean energy deposition per unit distance that charged particles traverse in a medium. The …

Interpreting The Biological Effects Of Protons As A Function Of Physical Quantity: Linear Energy Transfer Or Microdosimetric Lineal Energy Spectrum?, Fada Guan, Lawrence Bronk, Matthew Kerr, Yuting Li, Leslie A Braby, Xiaochun Wang, Clifford Stephan, David R Grosshans, Radhe Mohan

Faculty, Staff and Student Publications

The choice of appropriate physical quantities to characterize the biological effects of ionizing radiation has evolved over time coupled with advances in scientific understanding. The basic hypothesis in radiation dosimetry is that the energy deposited by ionizing radiation initiates all the consequences of exposure in a biological sample (e.g., DNA damage, reproductive cell death). Physical quantities defined to characterize energy deposition have included dose, a measure of the mean energy imparted per unit mass of the target, and linear energy transfer (LET), a measure of the mean energy deposition per unit distance that charged particles traverse in a medium. The …

Interpreting The Biological Effects Of Protons As A Function Of Physical Quantity: Linear Energy Transfer Or Microdosimetric Lineal Energy Spectrum?, Fada Guan, Lawrence Bronk, Matthew Kerr, Yuting Li, Leslie A Braby, Xiaochun Wang, Clifford Stephan, David R Grosshans, Radhe Mohan

Faculty, Staff and Student Publications

The choice of appropriate physical quantities to characterize the biological effects of ionizing radiation has evolved over time coupled with advances in scientific understanding. The basic hypothesis in radiation dosimetry is that the energy deposited by ionizing radiation initiates all the consequences of exposure in a biological sample (e.g., DNA damage, reproductive cell death). Physical quantities defined to characterize energy deposition have included dose, a measure of the mean energy imparted per unit mass of the target, and linear energy transfer (LET), a measure of the mean energy deposition per unit distance that charged particles traverse in a medium. The …

Diversity Of Gill Cichlidogyrus Spp. (Monopisthocotylean) Infecting Coptodon Zillii (Gervais, 1848) From Lake Naivasha, Kenya, Nehemiah M Rindoria

Polytechnic Journal

Monopisthocotyleans of the genus Cichlidogyrus are ectoparasites which infest on skin, fins and gills of most teleosts in both capture fisheries and aquaculture. These parasites are often unnoticed, yet they cause damages to the organs they affect thereby increasing susceptibility of the fish to secondary infections. A total of fifty specimens of the introduced Redbelly tilapia Coptodon zillii (Gervais, 1848) were collected between November 2014 and April 2015 from Lake Naivasha, Kenya, and studied with the aim of collecting and identifying the gill monopisthocotyleans. Standard methods of parasitological examination were used in the identification of gill monopisthocotyla species. The collected …

Incidence Of Achilles Tendon Ruptures And Associated Factors In Women's Artistic Gymnastics, Kayla Horton, Amanda Hawkes

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 5: Issue 1, Article 10, 2024.

Achilles tendon rupture risk appears to be higher in women's artistic gymnastics compared to other collegiate sports, however little is understood about personal, training, and performance factors potentially associated with this elevated risk. Previous research has only examined gymnasts who have sustained Achilles tendon ruptures while in an NCAA environment. The overall incidence of Achilles tendon ruptures among gymnasts has not been assessed. This study aims to identify injury factors, Achilles rupture incidence and training habits related to Achilles tendon ruptures in current and former women’s artistic …

Observers Have Similar Improvements In Student Learning Outcomes As Participants In Athletic Training Simulation Education: A Pilot Study., Alma R. Mattocks Phd, Atc, Chse, Sara E. Mahoney Phd, Facsm, Rachele E. Vogelpohl Phd, Atc, Kim Hawkins Phd, Aprn, Fnp-C

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Introduction: The use of standardized patient (SP) encounters in athletic training education programs have become more common; however, due to time and space constraints, it is possible that not all athletic training students will be able to participate and some must be observers. The objective of this study was to determine if observers experience similar improvements in student learning outcomes as participants for SP encounters. Methods: A pretest/posttest, non-randomized controlled trial was utilized. Nine athletic training students volunteered to participate in the research study. All participants completed a pretest survey including a knowledge assessment and confidence rating scale, followed by …

Bidirectional Nature Of Work Family Conflict: Family Interfering With Work Conflict Among Athletic Trainers In The Collegiate Setting, Stephanie M. Singe, Milana Adaspour, Alexandrya Cairns, William Pitney

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Introduction: Work-family conflict is bidirectional, yet research has largely only investigated the extent to which work interferes with family conflict (WIFC) and not whether family interferes with work conflict (FIWC). Objective: Investigate FIWC among collegiate athletic trainers. Specifically, we were focused on relationships between gender, marital status, employment status of the athletic trainer’s spouse, and number of children. Methods: Data were collected via a cross-sectional, online survey (Qualtrics). Descriptive statistics were calculated for demographic information; Mann Whitney U analyses were utilized to discover differences between gender, marital status, employment status of spouse, and number of children.

Results: 984 (605 women, …

Athletic Trainer Emergency Management Skill Assessment Via Low Fidelity Simulation, Jaclyn B. Arduini, Jennifer L. Volberding

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Introduction: Athletic training education requires the inclusion of emergency management (EM) best practices, however the Board of Certification (BOC) does not mandate any continuing education (CE) past Emergency Cardiac Care (ECC). With EM best practices continuing to change there is potential for a large knowledge gap to develop in practicing athletic trainers (ATs) who do not chose to engage in EM CE. The purpose of this study was to identify knowledge gaps in practicing ATs’ EM skills via low fidelity simulation. Methods: A cross-sectional study was conducted in an educational laboratory setting involving twenty-two ATs (age 36.7±10.8 years; 13 males, …

Telehealth Education In Athletic Training, W. David Carr, Mccall E. Christian, Jennifer L. Volberding, Zachary K. Winkelmann

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Context: Within the broad telehealth education literature, there are numerous case studies and position statements from various associations of model practices. Little is known about how athletic training is addressing telehealth education. Objective: To determine how athletic training education programs teach, assess, and structure telehealth content. Design: Cross-sectional study Setting: Online survey instrument Patients or Other Participants: An institutional athletic training faculty member from 82 athletic training programs in the United States. Data Collection and Analysis: The survey contained the validated Telehealth Evaluative Content in Higher Education (TECHE) instrument, which consisted of descriptive items focused on how education programs teach, …

Athletic Training Students’ Experiences And Perceptions Of Exertional Heat Stroke Simulated Encounters: A Qualitative Analysis, Hannah L. Stedge, Malissa Martin, Beth L. Kinslow, Valerie Herzog, Christine Reyes

Journal of Sports Medicine and Allied Health Sciences: Official Journal of the Ohio Athletic Trainers Association

Introduction: Athletic trainers are trained to recognize exertional heat stroke (EHS), which is critical to implementing lifesaving measures. Rectal thermometry is the best practice for recognizing EHS, and the Commission on Accreditation of Athletic Training Education (CAATE) requires students to learn rectal thermometry. Rooted in transformative learning theory, this study explored the perceptions and experiences of athletic training students following simulated EHS encounters with either high-fidelity (HF) simulators or standardized patients (SPs). Methods: This was a qualitative study using phenomenological theory. Through semi-structured qualitative interviews, we explored participants' personal experiences and perceptions following their simulation interventions. Participants included sixteen first-year …

Observations Of Co-Nest Building And Spawning In Native And Non-Native Chub Species (Nocomis Spp.) In The Swannanoa River, North Carolina, Patrick Ciccotto

Southeastern Fishes Council Proceedings

Co-nest building and spawning among individuals of the native population of River Chub (Nocomis micropogon) and among those of an introduced population of Bluehead Chub (N. leptocephalus) observed in the Swannanoa River (French Broad River basin) during Spring 2024 represents the first time such behaviors have been documented between two species of Nocomis. Observations of these behaviors are described and discussed in the context of potential hybridization and the impact of introduced Bluehead Chubs in the French Broad River basin.

Gas Chromatography-Mass Spectrometry (Gc-Ms), Computational Analysis, And In Vitro Effect Of Essential Oils From Two Aromatic Plants, Bubonium Graveolens And Launaea Arborescens Growing In Southwest Algeria Against Potato Cyst Nematodes, Souad Ziane, Chaouki Selles, Khaldun M. Al Azzam, Bounoua Nadia, Belal O. Al-Najjar, Ali Al-Samydai, Obada A. Sibai, El-Sayed Negim

Karbala International Journal of Modern Science

The study tested the nematicidal effects of essential oils from Bubonium graveolens and Launaea arborescens on the potato cyst nematode Globodera rostochiens. The chemical composition of the essential oils was analyzed using GC-MS. To determine the concentration that killed 50% of the nematode population (LC50), five concentrations of the essential oils were applied to the tested organisms. The effects of essential oils on the hatching of cyst nematode (Globodera rostochiensis sp.) eggs in vitro demonstrated a wide variety of effects ranging from no impact to mild, moderate, and strong effects, which increased dramatically with exposure duration and concentration. All the …

Broken Su(3) Description Of Energy Levels And Decay Properties In Gadolinium Isotopes (A=156-160), Fahmi Sh. Radhi, Amir Abdul Ameer Mohammed Ali Dr., Ali H. Al-Musawi

Karbala International Journal of Modern Science

This study presents an in-depth examination of the energy levels and decay properties of Gadolinium (Gd) isotopes with mass numbers (A=156-160), utilizing the Interacting Boson Model-1 (IBM-1) within a broken SU(3) symmetry framework. Through this approach, we systematically calculated and analyzed the energy spectra, B(E2) transition probabilities, quadrupole moments, and potential energy surface (PES) which provided valuable insights into the shape and collective behavior of nuclei, as well as the decay properties of the selected Gd isotopes. The broken SU(3) symmetries provide a good description to the isotopes under study. This comprehensive analysis enhances the understanding of the nuclear structure …

Skin Microbiome: Current Target For Cosmeceuticals, Priyanka Kakkar, Neeraj Wadhwa

Karbala International Journal of Modern Science

Skin acts as a barrier to the external environment and perform various functions like maintaining internal homeostasis, sensations to touch based stimuli, vitamin D production and defence against foreign pathogens, prevent dehydration. Skin has its own diverse microbiota like bacteria, virus, fungi that is collectively called as skin microbiome. Skin microbiome balance is disturbed (condition called dysbiosis) by both internal and external factors which lead to skin problems like acne, psoriasis, dandruff. It is important to maintain the healthy skin ecosystem. Cosmeceuticals i.e., combination of cosmetic and pharmaceuticals, is a recent trend in the skin care industry where we add …

Core Concepts: Views From Physiology And Neuroscience, Jennifer E. Schaefer, Joel Michael

Biology Faculty Publications

Core concepts are “big ideas” that are central to a discipline, provide frameworks of understanding for disciplinary content, and aid student transfer of learning. Core concept lists have been developed for increasing numbers of higher education STEM disciplines. This mini-review uses physiology and neuroscience core concepts as examples to inform core concept pedagogies in these and other disciplines. The article reviews the development of physiology and neuroscience core concepts and compares the resulting concept lists. It then provides suggestions or “lessons learned” for educators and researchers who wish to utilize core concept pedagogies or who wish to develop core concepts …

The Primacy Of Density-Mediated Indirect Effects In A Community Of Wolves, Elk, And Aspen, Elaine M. Brice, Eric J. Larsen, Daniel R. Stahler, Daniel R. Macnulty

Aspen Bibliography

The removal or addition of a predator in an ecosystem can trigger a trophic cascade, whereby the predator indirectly influences plants and/or abiotic processes via direct effects on its herbivore prey. A trophic cascade can operate through a density-mediated indirect effect (DMIE), where the predator reduces herbivore density via predation, and/or through a trait-mediated indirect effect (TMIE), where the predator induces an herbivore trait response that modifies the herbivore's effect on plants. Manipulative experiments suggest that TMIEs are an equivalent or more important driver of trophic cascades than are DMIEs. Whether this applies generally in nature is uncertain because few …

Metabolic Compensation Associated With Digestion In Response To The Latitudinal Thermal Environment Across Populations Of The Prairie Lizard (Sceloporus Consobrinus), Benjamin D. Haussmann, Tiffany Hegdahl, Travis R. Robbins

Biology Faculty Publications

Environmental temperatures directly affect physiological rates in ectotherms by constraining the possible body temperatures they can achieve, with physiological processes slowing as temperatures decrease and accelerating as temperatures increase. As environmental constraints increase, as they do northward along the latitudinal thermal gradient, organisms must adapt to compensate for the slower physiological processes or decreased opportunity time. Evolving faster general metabolic rates is one adaptive response posited by the metabolic cold adaptation (MCA) hypothesis. Here we test the MCA hypothesis by examining metabolism of prairie lizard populations across the latitudinal thermal gradient. Our results show that populations from cooler environments have …