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1 week ago
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ICB's spotlight for #WomensHistoryMonth

Dr. Elizabeth Brainerd is a professor at
Brown University & a past ICB co author on
#Data Management Rubric for Video Data in #Organismal #Biology
Brainerd et al
doi.org/10.1093/icb/...

learn more about Dr. Brainerd via

www.brainerdlab.org

#science

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4 weeks ago
Post image Fig. 1 (A) Conceptual figure illustrating the differential modulation of the increase in circulating glucocorticoids following an environmental challenge (e.g., changes in food availability, predation attempt, or inclement weather) based on differences in intrinsic state or social environment. Interpreting the graph using legend a, lines depict the glucocorticoid response of three individuals that differ in condition as indicated by the line color and condition axis. Using legend b, lines depict variable glucocorticoid responses based on the condition of social partners, wherein darker or lighter colors indicate social partners with higher or lower condition values, respectively. The scale of the x and y-axis of the graph are not specified to capture the potential for acute or chronic elevation of circulating glucocorticoids in response to short term (e.g., predation attempt) or prolonged (e.g., food shortage or inclement weather) environmental challenges. (B) Study timeline describing measurement and sample collection relative to the food restriction period for control and experimental groups. For both groups, blood sampling took place 3 days after birds were moved to acoustic chambers (i.e., Day -7). The second samples collected from control birds occurred 10 days after birds were moved into acoustic chambers (i.e., Day 0) to assess the effects of the study protocol on birds’ body condition and glucocorticoid physiology prior to the food restriction. For the experimental birds, the beginning of the food restriction occurred on Day 0, 10 days after entering the chambers, and the second sample collection occurred following 4 days of food restriction (i.e., Day 4). Asterisks in figure indicate days when body condition measurements were collected, and droplets denote days blood samples were collected. Numbers indicate day of study relative to the start of the food restriction.

Fig. 1 (A) Conceptual figure illustrating the differential modulation of the increase in circulating glucocorticoids following an environmental challenge (e.g., changes in food availability, predation attempt, or inclement weather) based on differences in intrinsic state or social environment. Interpreting the graph using legend a, lines depict the glucocorticoid response of three individuals that differ in condition as indicated by the line color and condition axis. Using legend b, lines depict variable glucocorticoid responses based on the condition of social partners, wherein darker or lighter colors indicate social partners with higher or lower condition values, respectively. The scale of the x and y-axis of the graph are not specified to capture the potential for acute or chronic elevation of circulating glucocorticoids in response to short term (e.g., predation attempt) or prolonged (e.g., food shortage or inclement weather) environmental challenges. (B) Study timeline describing measurement and sample collection relative to the food restriction period for control and experimental groups. For both groups, blood sampling took place 3 days after birds were moved to acoustic chambers (i.e., Day -7). The second samples collected from control birds occurred 10 days after birds were moved into acoustic chambers (i.e., Day 0) to assess the effects of the study protocol on birds’ body condition and glucocorticoid physiology prior to the food restriction. For the experimental birds, the beginning of the food restriction occurred on Day 0, 10 days after entering the chambers, and the second sample collection occurred following 4 days of food restriction (i.e., Day 4). Asterisks in figure indicate days when body condition measurements were collected, and droplets denote days blood samples were collected. Numbers indicate day of study relative to the start of the food restriction.

Meet IOB co author Ben Vernasco
Ben's focus as an integrative #organismal #biologist revolves around exploring the causes and consequences of variation in fitness-related traits and #behaviors.
benvernasco.wixsite.com/mysite
co author on
doi.org/10.1093/iob/...
cover Photo of paper Neil Paprocki

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2 months ago
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Connect with IOB co author C. Loren Buck
who is driven by questions of #organismal #physiology; specifically, #adaptations of animals to extreme environments & organismal responses to changing environments.

LinkedIn: www.linkedin.com/in/loren-buc...
& read his co authored:

doi.org/10.1093/iob/...

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4 months ago
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#SVP2025 goers - we'd love for you to consider Integrative #Organismal #Biology for your next publication.
see
academic.oup.com/iob

iobopen.com

& stop by the IOB booth at the expo to chat with our AE, Rick Blob, about your work and take away a souvenir.

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6 months ago
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ICB
A Systems Approach to #Homeostasis: What #Euryhaline #Fish Teach Us About #Organismal #Stress Responses
Alexander A Mauro et al
doi.org/10.1093/icb/...
& get to know a bit about Alex's past research
sustainability.colostate.edu/people/mauro...

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6 months ago
When external salinity increases, euryhaline fish try to maintain constant internal osmotic pressures (homeostasis) by altering their osmoregulatory sub-PRN to intake more water and excrete excess ions. Above is a schematic highlighting some (not all) of this homeostatic response. Osmosensors in the gut, gills, and brain detect internal changes in osmotic pressure, which leads to a endocrine response. Highlighted here are two hormonal responses stemming from the Hypothalamus-Pituitary-Interrenal axis: (1) ACTH released from the pituitary stimulates the release of cortisol (CORT) from the interrenal into the bloodstream, and (2) GH is released into the bloodstream from the pituitary. CORT and GH then bind to receptors in the gill, which triggers the hypo-osmoregulatory function of the gills: the proliferation of saltwater type ionocytes. These ionocytes then sense osmotic changes and excrete excess ions via ion transporters (see text for specifics). Hence, although the gill, brain, and gut form their own trans-organ sub-PRN, each organ itself also contains a smaller sub-PRN, and communication between the tissues is facilitated by the neuroendocrine system (connection between the brain and gill). Depending on the severity of the (salinity) stress and the makeup of the individual’s sub-PRNs, which is determined by the individual’s genotype to phenotype map, the fish will enter one of 4 zones of stress: Optimal, Pejus, Pessium, Lethal. These zones are described in detail in Fig. 2, and the behavioral consequences are highlighted here. Depending on the zone, an individual will either engage in: fitness increasing tasks like reproduction (baby fish), behavioral regulation to reduce stress (circular arrows), or fleeing the environment (left pointing fish). Artwork by Emily Tarnawa..."

When external salinity increases, euryhaline fish try to maintain constant internal osmotic pressures (homeostasis) by altering their osmoregulatory sub-PRN to intake more water and excrete excess ions. Above is a schematic highlighting some (not all) of this homeostatic response. Osmosensors in the gut, gills, and brain detect internal changes in osmotic pressure, which leads to a endocrine response. Highlighted here are two hormonal responses stemming from the Hypothalamus-Pituitary-Interrenal axis: (1) ACTH released from the pituitary stimulates the release of cortisol (CORT) from the interrenal into the bloodstream, and (2) GH is released into the bloodstream from the pituitary. CORT and GH then bind to receptors in the gill, which triggers the hypo-osmoregulatory function of the gills: the proliferation of saltwater type ionocytes. These ionocytes then sense osmotic changes and excrete excess ions via ion transporters (see text for specifics). Hence, although the gill, brain, and gut form their own trans-organ sub-PRN, each organ itself also contains a smaller sub-PRN, and communication between the tissues is facilitated by the neuroendocrine system (connection between the brain and gill). Depending on the severity of the (salinity) stress and the makeup of the individual’s sub-PRNs, which is determined by the individual’s genotype to phenotype map, the fish will enter one of 4 zones of stress: Optimal, Pejus, Pessium, Lethal. These zones are described in detail in Fig. 2, and the behavioral consequences are highlighted here. Depending on the zone, an individual will either engage in: fitness increasing tasks like reproduction (baby fish), behavioral regulation to reduce stress (circular arrows), or fleeing the environment (left pointing fish). Artwork by Emily Tarnawa..."

ICB
A Systems Approach to #Homeostasis:
What Euryhaline #Fish #Teach Us About #Organismal #Stress Responses
Mauro, Velotta @cam-g.bsky.social

doi.org/10.1093/icb/...

#biology #physiology #osmoregulation #ecology #endocrinology #evolutionary #science

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6 months ago
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Issue 3 of ICB is out now!
with papers on #Organismal Systems #Biology,
#Cnidarian sensory systems as comparative models for the #evolution of complexity,
& #Microbes matter: #Phenotypic effects of #microbiota on wild #animal hosts & more
academic.oup.com/icb/issue/65/3

#science

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7 months ago
Figure 1. Coinfection and immune compromise in African lions (Panthera leo) under climate stress and increased abundance of hematophagous arthropods. Extreme drought conditions followed by heavy rainfall triggered the starvation and heavy tick infestation in herbivores, such as Cape buffalo (Syncerus cafferi). As African lions preyed on the herbivores, the ixodid ticks likely switched hosts and began feeding on the lions. Underlying immunosuppression, fueled by climatic conditions and ongoing canine distemper virus (CDV) circulation, exacerbated the clinical impacts of tick-acquired babesiosis

Figure 1. Coinfection and immune compromise in African lions (Panthera leo) under climate stress and increased abundance of hematophagous arthropods. Extreme drought conditions followed by heavy rainfall triggered the starvation and heavy tick infestation in herbivores, such as Cape buffalo (Syncerus cafferi). As African lions preyed on the herbivores, the ixodid ticks likely switched hosts and began feeding on the lions. Underlying immunosuppression, fueled by climatic conditions and ongoing canine distemper virus (CDV) circulation, exacerbated the clinical impacts of tick-acquired babesiosis

ICB
Understand more about how #climate change threatens #organismal health and #ecological stability in a myriad of ways -
read :
Understanding #climatechange threats to #vertebrate #wildlife by studying #ecoimmunology across biological scales
Fagre et al
doi.org/10.1093/icb/...

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10 months ago
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In IOB issue!
Activation of the sympathetic-adrenal-medullary system increases DNA damage during the transition to captivity
D A V Kilgour and L M Romero as.tufts.edu/biology/rome...

Integrative #Organismal #Biology

doi.org/10.1093/iob/...

#birds #biology #DNA #research

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11 months ago
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IOB’s #Biomechanical Specialization Acts as an Asymmetrical Constraint on the #Phenotype
M I Schelp , E D Burress
Integrative #Organismal #Biology, doi.org/10.1093/iob/...

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11 months ago
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IOB's
#Biomechanical Specialization Acts as an Asymmetrical Constraint on the #Phenotype
M I Schelp , E D Burress
Integrative #Organismal #Biology, Volume 7, Issue 1, 2025,

lnkd.in/gfmStDcE
doi.org/10.1093/iob/...

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1 year ago
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work from IOB grouping
INTEGRATIVE #BIOLOGY OF #ORGANISMAL DEVELOPMENT - #Corticosterone Contributes to Diet-Induced Reprogramming of Post-#Metamorphic Behavior in Spadefoot #Toads
by A M Shephard, A M Shephard, S R Lagon, S Jacobsen, K Millar, C C Ledón-Rettig
doi.org/10.1093/iob/...

#science

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1 year ago
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ICB
#Genes, #Morphology, Performance,& Fitness: Quantifying #Organismal Performance to Understand #Adaptive #Evolution
by Dial et al
doi.org/10.1093/icb/...

& for #TeacherAppreciationWeek Dial's blog about 1 of his teachers(his dad)

integrativeandcomparativebiology.wordpress.com/2023/07/18/m...

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1 year ago
A conceptualized phenotypic space comparing important shared variables in target and non-target species. For scrub lizards, this space might represent trait correlations resulting from the application of prescribed fire (or some other management technique). The variables compared might be body temperature, color brightness, or mite load (physiology), substrate use (microhabitat), and daily duration of activity or peak activity (activity time). Functional biologists or managers could generate a variety of related comparisons to better understand phenotypic plasticity and/or how species respond to management practices. See text for details.

A conceptualized phenotypic space comparing important shared variables in target and non-target species. For scrub lizards, this space might represent trait correlations resulting from the application of prescribed fire (or some other management technique). The variables compared might be body temperature, color brightness, or mite load (physiology), substrate use (microhabitat), and daily duration of activity or peak activity (activity time). Functional biologists or managers could generate a variety of related comparisons to better understand phenotypic plasticity and/or how species respond to management practices. See text for details.

A perfect read for #EarthDay2024

#Conservation and Management Strategies Create Opportunities for Integrative #Organismal #Research

by Lance D McBrayer, Richard W Orton, Chase T Kinsey, Lauren K Neel

doi.org/10.1093/icb/...

#science #biology #phd

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2 years ago
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IOB
"...most studies of #organismal #biology still relied on commercial #software to reconstruct the #3D model from photographs, which impeded the adoption of this workflow in our field due the blocking issues such as cost and affordability..."
by Zhang & Maga
doi.org/10.1093/iob/...

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