Baseline Corticosterone Peaks in Shorebirds with Maximal Energy Stores for Migration: A General Preparatory Mechanism for Rapid Behavioral and Metabolic Transitions?

Piersma, Theunis; Reneerkens, Jeroen; Ramenofsky, Marilyn

doi:10.1006/gcen.2000.7543

Cited by 125 publications

(111 citation statements)

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“…This spontaneous elevation, not triggered by external events, could have evolved originally for other reasons, such as energy mobilization to promote emergence from natal burrows, similar to the glucocorticoid changes associated with fledging, dispersal or migration-related activities in birds (e.g. Heath, 1997;Belthoff and Dufty, 1998;Piersma et al, 2000;cf. results with spotted hyenas, Crocuta crocuta; Holekamp and Smale, 1998;and muriquis, Brachyteles arachnoids;Strier and Ziegler, 2000). However, the evolutionary maintenance of higher levels at emergence might also facilitate rapid learning and memory formation.…”

Section: Discussionmentioning

confidence: 95%

Developmental and geographic variation in stress hormones in wild Belding's ground squirrels (Spermophilus beldingi)

Mateo

2006

Hormones and Behavior

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Extensive research has been conducted on the role of glucocorticoids in regulating growth, mobilizing energy, responding to stressors and modulating learning and memory. However, little is known about the production of corticoids during early development in free-living animals, particularly during sensitive periods of acquisition of important behaviors. In a four-year study of Belding's ground squirrels, Spermophilus beldingi, a non-invasive assay of glucocorticoids was used to quantify age and population differences among juveniles from three California locations. Fecal-cortisol metabolites are elevated during a short period when juveniles first emerge aboveground from their natal burrows at about 4 weeks of age. This period of cortisol elevation coincides with when young are learning survival behaviors such as anti-predator responses and foraging strategies. Population differences in juvenile cortisol levels, which may reflect local variation in habitat quality and predator environments, were not evident until 2 weeks after emergence. Elevated cortisol at the age of emergence was also observed in juveniles born and reared in captivity without exposure to typical stressors that occur around the age of emergence. These results indicate that corticoids are regulated during early development, and the possible functions of age-related corticoid levels are discussed, including mobilization of glucose for natal emergence and later facilitation of growth and energy storage during the short summer before hibernation. In some species, elevated corticoids can also facilitate learning and memory, and current work is exploring whether the higher cortisol observed in all three S. beldingi populations just after emergence function to promote rapid acquisition of survival behaviors.

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Section: Discussionmentioning

confidence: 95%

Developmental and geographic variation in stress hormones in wild Belding's ground squirrels (Spermophilus beldingi)

Mateo

2006

Hormones and Behavior

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“…Migration and refueling at stopovers are physiologically stressful activities, and stress hormones such as corticosterone that could be important to shorebird stopover physiology (Piersma et al, 2000;Mizrahi et al, 2001) might also be immunosuppressive.…”

Section: Ruddy Turnstonesmentioning

confidence: 99%

Avian Influenza Virus Infection Dynamics in Shorebird Hosts

Maxted

Luttrell

Goekjian

et al. 2012

Journal of Wildlife Diseases

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ABSTRACT:To gain insight into avian influenza virus (AIV) transmission, exposure, and maintenance patterns in shorebirds at Delaware Bay during spring migration, we examined temporal AIV prevalence trends in four Charadriiformes species with the use of serial crosssectional data from 2000 through 2008 and generalized linear and additive models. Prevalence of AIV in Ruddy Turnstones (Arenaria interpres morinella) increased after arrival, peaked in mid-late May, and decreased prior to departure. Antibody prevalence also increased over this period; together, these results suggested local infection and recovery prior to departure. Red Knots (Calidris canutus rufa), Sanderlings (Calidris alba), and Laughing Gulls (Leucophaeus atricilla) were rarely infected, but dynamic changes in antibody prevalence differed among species. In Red Knots, declining antibody prevalence over the stopover period suggested AIV exposure prior to arrival at Delaware Bay with limited infection at this site. Antibody prevalence was consistently high in Laughing Gulls and low in Sanderlings. Both viral prevalence and antibody prevalence in Sanderlings varied directly with those in turnstones, suggesting virus spillover to Sanderlings. Results indicate that, although hundreds of thousands of birds concentrate at Delaware Bay during spring, dynamics of AIV infection differ among species, perhaps due to differences in susceptibility, potential for contact with AIV at this site, or prior exposure. Additionally, Ruddy Turnstones possibly act as a local AIV amplifying host rather than a reservoir.

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“…Birds were removed from aviaries once every week so that aviaries could be cleaned and were weighed and checked for general health status at this time. Piersma et al (2000) and Reneerkens et al (2002) suggested that corticosterone levels in migrating red knots increase specifically in association with migratory flight. To corroborate these findings, we first investigated plasma levels of corticosterone in captive birds during spring migration (May-June) in the year 2000.…”

Section: Animalsmentioning

confidence: 99%

“…Elevated levels of corticosterone have been noted during migration in a variety of bird species (Holberton et al 1996;Romero et al 1997;Holberton 1999;Piersma et al 2000). Corticosterone appears to increase specifically in association with migratory flight (Landys-Ciannelli et al 2002;Landys et al 2004b) and therefore may promote processes associated with this substage of migration, such as migratory activity and energy mobilization.…”

Section: Introductionmentioning

confidence: 99%

“…For example, when held in captivity on their wintering grounds, red knots show an increase in plasma corticosterone only after having attained a body mass similar to that of departing conspecifics (Piersma et al 2000). Also, free-living red knots display elevated corticosterone at the conclusion of a long bout of migratory flight, as they arrive at their breeding grounds in the North American Arctic (Reneerkens et al 2002).…”

Section: Introductionmentioning

confidence: 99%

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Role of the Low‐Affinity Glucocorticoid Receptor in the Regulation of Behavior and Energy Metabolism in the Migratory Red KnotCalidris canutus islandica

Landys¹,

Piersma²,

Ramenofsky³

et al. 2004

Physiological and Biochemical Zoology

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Role of the low-affinity glucocorticoid receptor in the regulation of behavior and energy metabolism in the migratory red knot Calidris canutus islandica Landys, MM; Piersma, Theun; Ramenofsky, M; Wingfield, JC; Wingfield, John C. Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. ABSTRACTPlasma corticosterone increases in association with migratory flight in the red knot Calidris canutus islandica, suggesting that corticosterone may promote migratory activity and/or energy mobilization in this species. This hypothesis is supported by general effects of glucocorticoids, which include stimulation of locomotion and the mobilization of energy depots. We experimentally examined the role of elevated corticosterone levels in the migratory red knot by comparing foraging behavior, flight frequency, and plasma metabolites between vehicle-injected controls and birds treated with RU486, an antagonist to the genomic low-affinity glucocorticoid receptor (GR). We predicted that RU486 treatment would interfere with energy mobilization. However, we expected no effects on flight activity because recent studies suggest that glucocorticoids affect locomotion through a nongenomic receptor. Finally, because glucocorticoids exert permissive effects on food intake, we postulated that RU486 treatment in the red knot would interfere with feeding. Results were consistent with the latter prediction, suggesting that the GR participates in the promotion of hyperphagia, the intense feeding state that is characteristic of the migratory condition. RU486 treatment did not affect flight fre- quency, suggesting that corticosterone may support migratory activity through a receptor other than the GR. Energy metabolism (as determined through plasma metabolites) was also unaffected by RU486, possibly because energetic demands experienced by captive birds were low.

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Baseline Corticosterone Peaks in Shorebirds with Maximal Energy Stores for Migration: A General Preparatory Mechanism for Rapid Behavioral and Metabolic Transitions?

Cited by 125 publications

References 48 publications

Developmental and geographic variation in stress hormones in wild Belding's ground squirrels (Spermophilus beldingi)

Developmental and geographic variation in stress hormones in wild Belding's ground squirrels (Spermophilus beldingi)

Avian Influenza Virus Infection Dynamics in Shorebird Hosts

Role of the Low‐Affinity Glucocorticoid Receptor in the Regulation of Behavior and Energy Metabolism in the Migratory Red KnotCalidris canutus islandica

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