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
