Effects of warm sea–surface temperature anomalies on the blue petrel at the Kerguelen Islands

Guinet, Christophe; Chastel, Olivier; Koudil, Malik; Durbec, Jean-Pierre; Jouventin, Pierre

doi:10.1098/rspb.1998.0390

Cited by 89 publications

(95 citation statements)

References 28 publications

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“…The same is true for tropical modes of variability, e.g. Guinet et al (1998) found that warm SSTs are typically located south of the Kerguelen Islands within a year of, and between 4.2 and 5.4 years after, an El Niño event. How these anomalous SSTs influence the local climate of the islands is unknown.…”

Section: Introductionmentioning

confidence: 65%

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High-resolution dynamical downscaling of re-analysis data over the Kerguelen Islands using the WRF model

Fonseca

Martín‐Torres

2018

Theor Appl Climatol

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We have used the Weather Research and Forecasting (WRF) model to simulate the climate of the Kerguelen Islands (49°S, 69°E) and investigate its inter-annual variability. Here, we have dynamically downscaled 30 years of the Climate Forecast System Reanalysis (CFSR) over these islands at 3-km horizontal resolution. The model output is found to agree well with the station and radiosonde data at the Port-aux-Français station, the only location in the islands for which observational data is available. An analysis of the seasonal mean WRF data showed a general increase in precipitation and decrease in temperature with elevation. The largest seasonal rainfall amounts occur at the highest elevations of the Cook Ice Cap in winter where the summer mean temperature is around 0°C. Five modes of variability are considered: conventional and Modoki El Niño-Southern Oscillation (ENSO), Indian Ocean Dipole (IOD), Subtropical IOD (SIOD) and Southern Annular Mode (SAM). It is concluded that a key mechanism by which these modes impact the local climate is through interaction with the diurnal cycle in particular in the summer season when it has a larger magnitude. One of the most affected regions is the area just to the east of the Cook Ice Cap extending into the lower elevations between the Gallieni and Courbet Peninsulas. The WRF simulation shows that despite the small annual variability, the atmospheric flow in the Kerguelen Islands is rather complex which may also be the case for the other islands located in the Southern Hemisphere at similar latitudes.

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Section: Introductionmentioning

confidence: 65%

“…It is important to note that Guinet et al (1998) only considered conventional El Niño events. Since the late 1970s, El Niño events have had a different structure with maximum SST anomalies in the central Pacific flanked by colder SSTs to the east and west ).…”

Section: Introductionmentioning

confidence: 99%

High-resolution dynamical downscaling of re-analysis data over the Kerguelen Islands using the WRF model

Fonseca

Martín‐Torres

2018

Theor Appl Climatol

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“…Physical environmental conditions controlling prey availability were the determining factors influencing breeding performance (Croxall et al 1988;Ainley and Boekelheide 1990;Jouventin and Weimerskirch 1991). Warm sea surface temperatures modifying zooplanktonic communities affected the breeding performance of blue petrels Halobaena carulea in the Kerguelen region (Guinet et al 1998). Similarly, the demonstrated effect of SIE variability on the growth of prey populations such as krill and salps (Smith a nd Nelson 1986;Loeb et al 1997) appeared to be central in explaining the linkages between sea-ice, food availability, and the breeding performance of top predators (Barbraud and Weimerskirch 2001;Bü ßer et al 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Seabird populations have been suggested as potential bioindicators of the variability of the Southern ocean marine ecosystem (Weimerskirch et al 2003;Guinet et al 1994Guinet et al , 1998Croxall 1992;Hunt et al 1992). Longterm data sets on variability in population size or reproductive performance of Antarctic seabirds are an invaluable tool to further assess this bioindicator role, especially with regard to sea-ice, a key-component of their ecosystem.…”

Section: Introductionmentioning

confidence: 99%

Variations of snow petrel breeding success in relation to sea-ice extent: detecting local response to large-scale processes?

Olivier

Franeker²,

Creuwels³

et al. 2005

Polar Biol

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Demographic parameters were estimated for snow petrels Pagodroma nivea nesting at the study colony of Reeve Hill near Casey station, Antarctica between 1984 and 2003. Average breeding success for the colony varied from 18.2% to 76.5%. Breeding effort, hatching and fledging success were subject to a high interannual variability. We examined the influence of regional sea-ice extent on the breeding performance of snow petrels at Reeve Hill. Fewer birds were breeding when sea-ice had been extensive during April-May. Overall breeding success and fledging success were improved during years with extensive sea-ice cover in winter. Successful breeding effort and breeding success were depressed when there was extensive sea-ice cover during January-February. Sea surface temperatures also correlated to snow petrel breeding performance parameters. Previous work showed that large-scale climatic events (ENSO, Antarctic circumpolar wave) and the related sea-ice cover around the Antarctic might affect the lower trophic levels of the marine environment and consequently food availability for snow petrels. A comparison with the long-term study conducted at Ile des Pe´trels (Terre Ade´lie) suggests that despite similarities in the underlying biological processes that control snow petrel breeding performance, the nature of the correlation of large-scale environmental factors with breeding performance differs substantially between the two colonies, probably because of the confounding effects of other environmental factors acting at a local scale (local weather, nest quality), which also affect bird body condition.

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“…Impacts of ENSO on reproduction of seabird populations have been detected in places far from the equatorial Pacific, where they often occur after a lag of few months or years (e.g., Ainley et al 1995;Guinet et al 1998;Chambers 2004;Quillfeldt et al 2007), depending on the distance of the site from the equatorial Pacific and on the time required for bottom-up processes to cascade to upper trophic levels (Monticelli et al 2007). The Southern Oscillation Index (SOI) summarizes the state of the ENSO on a global scale, and appears to be strongly related to the breeding success and survival of seabirds ranging widely, such as albatrosses and many petrels (e.g.…”

Section: South American Large Marine Ecosystems and Climatementioning

confidence: 99%

Impacts of climate variation and potential effects of climate change on South American seabirds – a review

Quillfeldt

Masello

2013

Marine Biology Research

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The coastal and oceanic waters around the South American coasts provide rich foraging grounds for breeding and wintering seabirds, but there is growing concern that climate change will provide additional pressures to the seabirds around South America. As in many other coastal ecosystems, seabirds around South America are already faced with threats to their breeding habitats such as human disturbance and introduced predators, and threats at sea such as persistent pollutants and pesticides and direct mortality risks due to fisheries and oil spills. The sensitivity of South American marine ecosystems to ocean climate anomalies is well known from the dramatic population collapses caused by El Niñ o Southern Oscillation (ENSO) events. However, longer-term climate change effects have been explored less often and few long-term data sets exist for South American seabirds. Seven Large Marine Ecosystems (LME) border South America. While all LMEs experienced warming during the last 50 years, their climate dynamics have differed in recent decades. Climate models suggest that potential climate change effects may be important, especially due to changes in ENSO intensity and frequency and associated changes in the ocean climate of Atlantic and Pacific marine ecosystems. In this review, we found that the best studied seabird communities are those of the Patagonian Shelf and the Humboldt Current, but overall, our knowledge on climate effects on South American seabirds is scarce.

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Effects of warm sea–surface temperature anomalies on the blue petrel at the Kerguelen Islands

Cited by 89 publications

References 28 publications

High-resolution dynamical downscaling of re-analysis data over the Kerguelen Islands using the WRF model

High-resolution dynamical downscaling of re-analysis data over the Kerguelen Islands using the WRF model

Variations of snow petrel breeding success in relation to sea-ice extent: detecting local response to large-scale processes?

Impacts of climate variation and potential effects of climate change on South American seabirds – a review

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