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Validating growth and development of a seabird as an indicator of food availability: captive-reared Caspian Tern chicks fed ad libitum and restricted diets

Published on Mar 1, 2011in Journal of Field Ornithology 1.85
· DOI :10.1111/j.1557-9263.2010.00311.x
Donald E. Lyons12
Estimated H-index: 12
(USGS: United States Geological Survey),
Daniel D. Roby29
Estimated H-index: 29
(USGS: United States Geological Survey)
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Abstract
For seabirds raising young under conditions of limited food availability, reducing chick provisioning and chick growth rates are the primary means available to avoid abandonment of a breeding effort. For mostseabirds,however,baselinedatacharacterizingchickgrowthanddevelopmentunderknownfeedingconditions are unavailable, so it is difficult to evaluate chick nutritional status as it relates to foraging conditions near breeding colonies. To address this need, we examined the growth and development of young Caspian Terns (Hydroprogne caspia), a cosmopolitan, generalist piscivore, reared in captivity and fed ad libitum and restricted (ca. one-third lower caloric intake) diets. Ad libitum-fed chicks grew at similar rates and achieved a similar size at fledging as previously documented for chicks in the wild and had energetic demands that closely matched allometric predictions. We identified three general characteristics of food-restricted Caspian Tern chicks compared to ad libitum chicks: (1) lower age-specific body mass, (2) lower age-specific skeletal and feather size, such as wing chord length, and (3) heightened levels of corticosterone in blood, both for baseline levels and in response to acute stress. Effects of diet restriction on feather growth (10-11% slower growth in diet-restricted chicks) were less pronounced than effects on structural growth (37-52% slower growth) and body mass (24% lower at fledging age), apparently due to preferential allocation of food resources to maintain plumage growth. Our results suggest that measurements of chick body mass and feather development (e.g., wing chord or primary length) or measurement of corticosterone levels in the blood would allow useful evaluation of the nutritional status of chicks reared in the wild and of food availability in the foraging range of adults. Such evaluations could also inform demography studies (e.g., predict future recruitment) and assist in evaluating designated piscivorous waterbird conservation (colony) sites.
  • References (45)
  • Citations (15)
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References45
Newest
Published on Oct 1, 2013in Biological oceanography
D. K. Cairns6
Estimated H-index: 6
(MUN: Memorial University of Newfoundland)
AbstractAn integrated approach to the use of seabirds as indicators of marine food supplies is developed, based on proposed relations between food availability and seabird population and behavior parameters. Adult survivorship, breeding success, chick growth, colony attendance, and activity budgets vary with prey availability, but response to food supply occurs at different temporal scales and at different levels of prey availability for each parameter. Seabird data most reliably indicate food a...
Published on Jul 29, 2010in PLOS ONE 2.78
Carol A. Devney5
Estimated H-index: 5
(Australian Institute of Marine Science),
M. Julian Caley30
Estimated H-index: 30
(Australian Institute of Marine Science),
Bradley C. Congdon20
Estimated H-index: 20
(JCU: James Cook University)
Behavioral and/or developmental plasticity is crucial for resisting the impacts of environmental stressors. We investigated the plasticity of adult foraging behavior and chick development in an offshore foraging seabird, the black noddy (Anous minutus), during two breeding seasons. The first season had anomalously high sea-surface temperatures and ‘low’ prey availability, while the second was a season of below average sea-surface temperatures and ‘normal’ food availability. During the second sea...
Published on Apr 26, 2010in Ethology 1.52
Alejandra Nuǹz-de la Mora1
Estimated H-index: 1
(UNAM: National Autonomous University of Mexico),
Hugh Drummond32
Estimated H-index: 32
(UNAM: National Autonomous University of Mexico),
John C. Wingfield108
Estimated H-index: 108
(UNAM: National Autonomous University of Mexico)
In the blue-footed booby (Sula nebouxii), the first-hatched chick aggressively dominates its sibling and sometimes kills it when food is in short supply. To investigate the endocrine correlates of dominance-subordinance and hunger-induced agonism, we deprived 15–20-d-old single-chick and two-chick broods of food during 48 h by taping chicks' necks to prevent ingestion of parentally provided food (a protocol used previously and known to elicit escalated sibling fighting). We monitored weight and ...
Published on Jan 1, 2009in Fisheries Research 2.34
L.D. Einoder1
Estimated H-index: 1
(University of Adelaide)
This paper reviews the use of seabirds in fisheries management around the world, and provides a comprehensive overview of the many factors that should be considered in order to identify the most appropriate species and parameters. There are a growing number of examples where seabird monitoring programs are providing valuable information on the health of particular fish stocks, the health of the ecosystem, and on the effects of climatic change. Despite this, their suitability and usefulness as ec...
Published on Nov 1, 2008in The Condor 2.80
Justine Sears3
Estimated H-index: 3
(UAF: University of Alaska Fairbanks),
Scott A. Hatch29
Estimated H-index: 29
(USGS: United States Geological Survey)
Abstract Seabirds may be particularly vulnerable to neonatal food restriction because their nestling periods tend to be long and parents may not increase foraging effort during times of prey shortage. We performed a captive study of Rhinoceros Auklet (Cerorhinca monocerata) nestlings to identify adaptations for coping with food shortages, as well as possible consequences of early diet restriction on subadult morphology. We tested effects of a ~50% caloric restriction on Rhinoceros Auklet morphol...
Z Morgan Benowitz-Fredericks9
Estimated H-index: 9
(UAF: University of Alaska Fairbanks),
Michael T. Shultz5
Estimated H-index: 5
(UAF: University of Alaska Fairbanks),
Alexander S. Kitaysky33
Estimated H-index: 33
(UAF: University of Alaska Fairbanks)
Abstract Apex predators can provide valuable information about effects of climate variability on trophodynamics in the Bering Sea. We used corticosterone (the primary avian stress hormone, “CORT”) as a proxy of changes in prey availability for planktivorous and piscivorous seabirds. CORT secretion reflects energy balance in breeding individuals and can be used to monitor changes in the marine environment that alter food availability. We tested whether CORT in planktivorous least auklets ( Aethia...
Published on Jun 28, 2008in Ibis 1.99
Anthony J. Gaston43
Estimated H-index: 43
(CWS: Canadian Wildlife Service)
I compared the timing of colony departure and body mass of 53 Ancient Murrelet Synthliboramphus antiquus chicks that were retrapped as adults in Haida Gwaii, British Columbia, with those of 3992 chicks not retrapped. If the probability of recapture is a measure of survival, survival was related to both mass and date. Chicks that left the colony at 26 g or less had a lower chance of survival than heavier chicks, and those that left after the median date of departure survived better in some years ...
Published on Jun 28, 2008in Ibis 1.99
Wesley W. Weathers26
Estimated H-index: 26
(UC Davis: University of California, Davis)
The total energy metabolized (TME) by nestling birds, from hatching to fledging, scales as M1.06, with body-mass at fledging (M) explaining 97% of the variation in TME. After statistically removing the effects of body-mass, multiple-regression analysis reveals that 69% of the variation in TME is explained by nestling developmental rate, expressed as the time to fledging (tfl, days). Together tfl and M explain 99% of the variation in TME for the 30 species considered (M range 9.7 to 3700 g). Peak...
Published on Jun 28, 2008in Ibis 1.99
Paul M. Sagar19
Estimated H-index: 19
(NIWA: National Institute of Water and Atmospheric Research),
D. S. Horning1
Estimated H-index: 1
(Cant.: University of Canterbury)
Published on Dec 20, 2007in Marine Ecology Progress Series 2.36
Alexander S. Kitaysky33
Estimated H-index: 33
(UAF: University of Alaska Fairbanks),
John F. Piatt38
Estimated H-index: 38
,
John C. Wingfield108
Estimated H-index: 108
(UW: University of Washington)
Catastrophic population declines in marine top predators in the northern Pacific have been hypothesized to result from nutritional stress affecting reproduction and survival of individuals. However, empirical evidence for food-related stress in wild animals is frequently lacking or inconclu- sive. We used a field endocrinology approach to measure stress, identify its causes, and examine a link between stress and population processes in the common murre Uria aalge. We tested the empir- ical relat...
Cited By15
Newest
Published in Integrative and Comparative Biology 3.10
Creagh W. Breuner36
Estimated H-index: 36
(UM: University of Montana),
Sara A. Berk1
Estimated H-index: 1
(UM: University of Montana)
Published on Jun 1, 2019in Biological Reviews 10.29
Harrison Jf Eyck (Deakin University), Katherine L. Buchanan38
Estimated H-index: 38
(Deakin University)
+ 1 AuthorsTim S. Jessop24
Estimated H-index: 24
(Deakin University)
Published on Dec 1, 2018in General and Comparative Endocrinology 2.44
Robert de Bruijn4
Estimated H-index: 4
(Tufts University),
L. Michael Romero48
Estimated H-index: 48
(Tufts University)
Abstract Changes in the environment related to inclement weather can threaten survival and reproductive success both through direct adverse exposure and indirectly by decreasing food availability. Glucocorticoids, released during activation of the hypothalamic-pituitary-adrenal axis as part of the stress response, are an important candidate for linking vertebrate coping mechanisms to weather. This review attempts to determine if there is a consensus response of glucocorticoids to exposure to wea...
Published on Jul 1, 2017in Molecular Ecology 5.86
Rebecca C. Young9
Estimated H-index: 9
(UNAM: National Autonomous University of Mexico),
Jorg Welcker19
Estimated H-index: 19
(UAF: University of Alaska Fairbanks)
+ 5 AuthorsAlexander S. Kitaysky33
Estimated H-index: 33
(UAF: University of Alaska Fairbanks)
Early-life conditions can drive ageing patterns and life history strategies throughout the lifespan. Certain social, genetic and nutritional developmental conditions are more likely to produce high-quality offspring: those with good likelihood of recruitment and productivity. Here, we call such conditions "favoured states" and explore their relationship with physiological variables during development in a long-lived seabird, the black-legged kittiwake (Rissa tridactyla). Two favoured states were...
Published on May 18, 2016in PeerJ 2.35
Jennifer Marie Arnold11
Estimated H-index: 11
(PSU: Pennsylvania State University),
Donald J. Tyerman1
Estimated H-index: 1
+ 2 AuthorsStephen A. Oswald7
Estimated H-index: 7
(PSU: Pennsylvania State University)
In July 2014, we observed premature feather loss (PFL) among non-sibling, common tern Sterna hirundo chicks between two and four weeks of age at Gull Island in northern Lake Ontario, Canada. Rarely observed in wild birds, to our knowledge PFL has not been recorded in terns since 1974, despite the subsequent banding of hundreds of thousands of tern chicks across North America alone. The prevalence, 5% of chicks (9/167), and extent of feather loss we report is more extreme than in previous reports...
Published on Mar 1, 2016in Journal of Animal Ecology 4.36
Jennifer Marie Arnold11
Estimated H-index: 11
(PSU: Pennsylvania State University),
Ian C. T. Nisbet32
Estimated H-index: 32
,
Stephen A. Oswald7
Estimated H-index: 7
(PSU: Pennsylvania State University)
Post-natal growth is an important life-history trait and can be a sensitive indicator of ecological stress. For over 50 years, monotonic (never-decreasing) growth has been viewed as the predominant trajectory of post-natal mass change in most animal species, notably among birds. However, prevailing analytical approaches and energetic constraints may limit detection of non-monotonic (or multiphasic), determinate growth patterns, such as mass recession in birds (weight loss prior to fledging, prec...
Published on Dec 4, 2015
Robert T. Barrett (University of Bergen)
Over 32 years (1981–2013), Razorbills Alca torda breeding at Hornoya, NE Norway fed their chicks on capelin Mallotus villosus , sandeels Ammodytes spp. and, sometimes, I-group herring Clupea harengus . It seems that Razorbills are opportunistic and feed their chicks the youngest stages of herring in years when the latter are numerous in the southern Barents Sea. Increasing sea temperatures and resulting shifts in fish distribution may result in fewer capelin and more herring and sandeels in the ...
Published on Mar 20, 2015in PLOS ONE 2.78
Marek Kouba4
Estimated H-index: 4
(CULS: Czech University of Life Sciences Prague),
Luděk Bartoš14
Estimated H-index: 14
(CULS: Czech University of Life Sciences Prague)
+ 1 AuthorsMarkéta Zárybnická8
Estimated H-index: 8
(CULS: Czech University of Life Sciences Prague)
In altricial birds, the nestling period is an important part of the breeding phase because the juveniles may spend quite a long time in the nest, with associated high energy costs for the parents. The length of the nestling period can be variable and its duration may be influenced by both biotic and abiotic factors; however, studies of this have mostly been undertaken on passerine birds. We studied individual duration of nestling period of 98 Tengmalm’s owl chicks (Aegolius funereus) at 27 nests...
Published on Feb 1, 2015
Robert T. Barrett1
Estimated H-index: 1
Despite a long-term (1989–2013) reduction in size of fish brought to Atlantic Puffin Fratercula arctica chicks and a parallel increase in numbers of fish in the food loads, there was no evidence of changes in chick growth rates at Hornoya, NE Norway. Recent declines in chick survival and cessation in population growth suggest, however, that environmental conditions have changed to an extent that breeding success is now compromised. Introduction Adult seabirds generally feed their chicks an energ...