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Articles 1 - 8 of 8
Full-Text Articles in Biology
Energy Expenditure Across Immune Challenge Severities In A Lizard: Consequences For Innate Immunity, Locomotor Performance And Oxidative Status, Susannah S. French, Spencer Hudson
Energy Expenditure Across Immune Challenge Severities In A Lizard: Consequences For Innate Immunity, Locomotor Performance And Oxidative Status, Susannah S. French, Spencer Hudson
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Reptiles, like other vertebrates, rely on immunity to defend themselves from infection. The energetic cost of an immune response is liable to scale with infection severity, prompting constraints on other selfmaintenance traits if immune prioritization exceeds energy budget. In this study, adult male side-blotched lizards (Uta stansburiana) were injected with saline (control) or high (20 μg g−1 body mass) or low (10 μg g−1 body mass) concentrations of lipopolysaccharide (LPS) to simulate bacterial infections of discrete severities. The costs and consequences of the immune response were assessed through comparisons of change in resting metabolic rate (RMR), energy metabolites (glucose, glycerol, …
Age-Related Mushroom Body Expansion In Male Sweat Bees And Bumble Bees, Mallory A. Hagadorn, Karlee Eck, Matthew Del Grosso, Xavier Haemmerle, William T. Wcislo, Karen M. Kapheim
Age-Related Mushroom Body Expansion In Male Sweat Bees And Bumble Bees, Mallory A. Hagadorn, Karlee Eck, Matthew Del Grosso, Xavier Haemmerle, William T. Wcislo, Karen M. Kapheim
Biology Student Research
A well-documented phenomenon among social insects is that brain changes occur prior to or at the onset of certain experiences, potentially serving to prime the brain for specific tasks. This insight comes almost exclusively from studies considering developmental maturation in females. As a result, it is unclear whether age-related brain plasticity is consistent across sexes, and to what extent developmental patterns differ. Using confocal microscopy and volumetric analyses, we investigated age-related brain changes coinciding with sexual maturation in the males of the facultatively eusocial sweat bee, Megalopta genalis, and the obligately eusocial bumble bee, Bombus impatiens. We compared volumetric …
Collaborative Research: L Treb: Predicting The Success Of Montane Species In An Era Of Climatic Upheaval, Zachariah Gompert
Collaborative Research: L Treb: Predicting The Success Of Montane Species In An Era Of Climatic Upheaval, Zachariah Gompert
Funded Research Records
No abstract provided.
Fruits, Frugivores, And The Evolution Of Phytochemical Diversity, Susan R. Whitehead, Gerald F. Schneider, Ray Dybzinski, Annika S. Nelson, Mariana Gelambi, Elsa Jos, Noelle G. Beckman
Fruits, Frugivores, And The Evolution Of Phytochemical Diversity, Susan R. Whitehead, Gerald F. Schneider, Ray Dybzinski, Annika S. Nelson, Mariana Gelambi, Elsa Jos, Noelle G. Beckman
Biology Faculty Publications
Plants produce an enormous diversity of secondary metabolites, but the evolutionary mechanisms that maintain this diversity are still unclear. The interaction diversity hypothesis suggests that complex chemical phenotypes are maintained because different metabolites benefit plants in different pairwise interactions with a diversity of other organisms. In this synthesis, we extend the interaction diversity hypothesis to consider that fruits, as potential hotspots of interactions with both antagonists and mutualists, are likely important incubators of phytochemical diversity. We provide a case study focused on the Neotropical shrub Piper reticulatum that demonstrates: 1) secondary metabolites in fruits have complex and cascading effects for …
Sickness Behaviors Across Vertebrate Taxa: Proximate And Ultimate Mechanisms, Patricia C. Lopes, Susannah S. French, Douglas C. Woodhams, Sandra A. Binning
Sickness Behaviors Across Vertebrate Taxa: Proximate And Ultimate Mechanisms, Patricia C. Lopes, Susannah S. French, Douglas C. Woodhams, Sandra A. Binning
Biology Faculty Publications
There is nothing like a pandemic to get the world thinking about how infectious diseases affect individual behavior. In this respect, sick animals can behave in ways that are dramatically different from healthy animals: altered social interactions and changes to patterns of eating and drinking are all hallmarks of sickness. As a result, behavioral changes associated with inflammatory responses (i.e. sickness behaviors) have important implications for disease spread by affecting contacts with others and with common resources, including water and/or sleeping sites. In this Review, we summarize the behavioral modifications, including changes to thermoregulatory behaviors, known to occur in vertebrates …
Experience, But Not Age, Is Associated With Volumetric Mushroom Body Expansion In Solitary Alkali Bees, Mallory A. Hagadorn, Makenna M. Johnson, Adam R. Smith, Marc A. Seid, Karen M. Kapheim
Experience, But Not Age, Is Associated With Volumetric Mushroom Body Expansion In Solitary Alkali Bees, Mallory A. Hagadorn, Makenna M. Johnson, Adam R. Smith, Marc A. Seid, Karen M. Kapheim
Biology Student Research
In social insects, changes in behavior are often accompanied by structural changes in the brain. This neuroplasticity may come with experience (experience-dependent) or age (experience-expectant). Yet, the evolutionary relationship between neuroplasticity and sociality is unclear, because we know little about neuroplasticity in the solitary relatives of social species. We used confocal microscopy to measure brain changes in response to age and experience in a solitary halictid bee (Nomia melanderi). First, we compared the volume of individual brain regions among newly emerged females, laboratory females deprived of reproductive and foraging experience, and free-flying, nesting females. Experience, but not age, …
Scc-Civic-Pg Track B: Data And Tools To Build Resilience In Western Gateway And Natural Amenity Region Communities, Jordan Smith
Scc-Civic-Pg Track B: Data And Tools To Build Resilience In Western Gateway And Natural Amenity Region Communities, Jordan Smith
Funded Research Records
No abstract provided.
Data From: Recovery From Discrete Wound Severities In Side-Blotched Lizards (Uta Stansburiana): Implications For Energy Budget, Locomotor Performance, And Oxidative Stress, Susannah S. French, Spencer B. Hudson
Data From: Recovery From Discrete Wound Severities In Side-Blotched Lizards (Uta Stansburiana): Implications For Energy Budget, Locomotor Performance, And Oxidative Stress, Susannah S. French, Spencer B. Hudson
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Wounding events (predation attempts, competitive combat) result in injuries and/or infections that induce integrated immune responses for the recovery process. Despite the survival benefits of immunity in this context, the costs incurred may require investment to be diverted from traits contributing to immediate and/or future survival, such as locomotor performance and oxidative status. Yet, whether trait constraints manifest likely depends on wound severity and the implications for energy budget. For this study, food intake, body mass, sprint speed, and oxidative indices (reactive oxygen metabolites, antioxidant capacity) were monitored in male side-blotched lizards (Uta stansburiana) healing from cutaneous wounds of discrete …