Match!

The diet, growth and survival of Razorbill Alca torda chicks in the southern Barents Sea

Published on Dec 4, 2015
· DOI :10.15845/on.v38i0.891
Robert T. Barrett26
Estimated H-index: 26
(University of Bergen)
Abstract
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 chick diet.
  • References (23)
  • Citations (0)
📖 Papers frequently viewed together
2001
1 Author (Peter Lyngs)
2 Citations
6 Citations
87 Citations
78% of Scinapse members use related papers. After signing in, all features are FREE.
References23
Newest
#1Per FauchaldH-Index: 26
#2Tycho Anker-NilssenH-Index: 19
Last. Geir Helge SystadH-Index: 9
view all 15 authors...
7 Citations
#1Robert T. BarrettH-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...
2 Citations
#1Aurore Ponchon (CNRS: Centre national de la recherche scientifique)H-Index: 8
#2David Grémillet (UCT: University of Cape Town)H-Index: 48
Last. Thierry Boulinier (CNRS: Centre national de la recherche scientifique)H-Index: 39
view all 9 authors...
During breeding, long-lived species face important time and energy constraints that can lead to breeding failure when food becomes scarce. Despite the potential implications of intra-season dynamics in breeding failure for individual behavior, carry-over effects, dispersal decisions and population dynamics, little information is currently available on these dynamics at fine temporal scales. Here, we monitored the foraging behavior and the proportion of successful black-legged kittiwake pairs fro...
22 CitationsSource
To gain a better understanding of population processes and in the light of the critically endangered status of the Common Guillemot Uria aalge in Norway, we investigate which environmental factors might affect the fitness of guillemot chicks as they depart from the nest site over a 16-year period on a colony in NE Norway. Although prey composition did not seem to influence the fledging body mass of the chicks, there were significant relationships between the yearly variations in chick body mass ...
6 CitationsSource
#1Edda JohannesenH-Index: 16
#2Randi IngvaldsenH-Index: 26
Last. Jan Erik StiansenH-Index: 10
view all 9 authors...
Long time-series of data from the Barents Sea (BS) are analysed to contrast the climate, fishing pressure, plankton, pelagic fish, demersal fish, and interactions between trophic levels in a recent decade (2000–2009) with the period 1970–1999. During the past four decades, fishing pressure and climatic conditions have varied greatly in the BS, and stock levels have fluctuated substantially. Trophic control has changed from mainly bottom–up to top–down, then back to mainly bottom–up. No clear evi...
81 CitationsSource
#1Lorraine S. Chivers ('QUB': Queen's University Belfast)H-Index: 6
#2Mathieu G. LundyH-Index: 11
Last. Neil ReidH-Index: 15
view all 3 authors...
Capsule Despite substantial inter-annual and inter-specific variance in the composition of chick diet, the breeding success of Guillemots (Common Murres) Uria aalge and Razorbills Alca torda remained constant from 2008 to 2010. Aims To examine inter-specific and inter-annual differences in breeding success, chick provisioning behaviour and predation between two sympatric auk species. Methods Focal observations of breeding auks at Rathlin Island, Northern Ireland, during 2008, 2009 and 2010 recor...
4 CitationsSource
#1Donald E. Lyons (USGS: United States Geological Survey)H-Index: 14
#2Daniel D. Roby (USGS: United States Geological Survey)H-Index: 30
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 o...
18 CitationsSource
#1Kyle W. Morrison (SFU: Simon Fraser University)H-Index: 3
#2J. Mark Hipfner (SFU: Simon Fraser University)H-Index: 9
Last. David J. Green (SFU: Simon Fraser University)H-Index: 20
view all 4 authors...
Abstract. In long-lived species, juvenile survival and the age at which individuals begin the process of recruitment have important consequences for individual fitness and population growth. We investigated how characteristics of fledglings (mass, wing length, and date) influenced the local survival of juveniles and age at first return to the natal breeding colony of two annual cohorts of the Tufted Puffin (Fratercula cirrhata) at Triangle Island, British Columbia. Although both cohorts were pro...
45 CitationsSource
35 CitationsSource
#2Svein Sundby (Bjerknes Centre for Climate Research)H-Index: 28
The Norwegian fishing areas extend over various marine ecosystems that will respond differently to climate change. In the North Sea the productivity of the boreal fish species are likely to decrease under global warming and new warm-water species are expected to become more abundant. In the arctic marine ecosystem of the Barents Sea the fish productivity is expected to increase and their distributions expand northward and eastward under global warming increasing the importance of the Russian as ...
71 CitationsSource
Cited By0
Newest