Who lives and who dies? The impact of severe April weather on breeding common sandpipers <i>Actitis hypoleucos</i>

Holland, P. K.; Yalden, D. W.

doi:10.1080/03078698.1995.9674101

Cited by 7 publications

(8 citation statements)

References 4 publications

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“…Selection on morphological components has been demonstrated to occur in a wide range of organisms (Endler, 1986;Fairbairn and Reeve, 2001;Kingsolver et al, 2001) and in various species of birds (Holland and Yalden, 1995;Brown and Brown, 1998;Larsson et al, 1998;Merila et al, 1999;Balmford et al, 2000;Barbraud, 2000;Nowakowski, 2000;Przybylo et al, 2000), including barn swallows (M ller, 1993;M ller and Tegelstrom, 1997;M ller et al, 1998;Brown and Brown, 1999). In Nebraska, a period of severe weather resulted in size-related mortality of barn swallows (Brown and Brown, 1999) indicating that, as with other bird species natural selection acts upon at least some morphological components.…”

Section: Discussionmentioning

confidence: 99%

Geographic variation in the G matrices of wild populations of the barn swallow

et al. 2004

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In this paper, we present an analysis of genetic variation in three wild populations of the barn swallow, Hirundo rustica. We estimated the P, E, and G matrices for six linear morphological measurements and tested for variation among populations using the Flury hierarchical method and the jackknife followed by MANOVA method. Because of nonpositive-definite matrices, we had to employ 'bending' to analyse the G and E matrices with the Flury method. Both statistical methods agree in finding that the P and G matrices are significantly different but comparison between the analysis of the P matrices and pairwise analyses of the P, E, and G matrices suggests caution in interpreting the Flury results concerning differences in matrix structure. The significant variation among the populations in the G matrices appears to be due in large measure to the most geographically distant population.

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Section: Discussionmentioning

confidence: 99%

Geographic variation in the G matrices of wild populations of the barn swallow

et al. 2004

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“…Data from the Borders allow only estimates of annual variation in survival rates and population size (productivity was not estimated annually), and due to the shorter time span of data available from that site, were used only as an independent test of some of the Ashop models. More details of both study areas can be found in Holland and Yalden 1995;Dougall et al 2005.…”

Section: Study Locations and Weld Methodsmentioning

confidence: 98%

“…Re-sightings of colour-ringed individuals from year to year provide an estimate of apparent adult survival rates (Holland and Yalden 1991, 1995, 2002a: true survival is inestimable as permanent emigration is indistinguishable from mortality. Weekly surveys were used to estimate annual variation in population size (Holland and Yalden 1991).…”

Section: Study Locations and Weld Methodsmentioning

confidence: 99%

“…htm and http://www.cgd.ucar.edu/cas/jhurrell/indices.html, respectively (both accessed 25/09/2006). Finally, the mean temperature in the last 2 weeks of April has previously been correlated with adult survival (Holland and Yalden 1995), and was obtained for the Ashop population from Buxton weather station, ca. 20 km from the Ashop study area.…”

Section: Modelling Adult Survivalmentioning

confidence: 99%

“…Winter NAO has been increasingly positive in recent years, resulting in warmer, wetter winters in western Europe and cooler, drier conditions in northwest Africa (Wang et al 2005;Stige et al 2006), both changes that could potentially inXuence these populations. Building on previous analyses from these populations which have demonstrated eVects of April weather on adult survival (Holland and Yalden 1995) and advancing breeding phenology due to spring warming (Dougall et al 2005), we compare the importance of climate in determining variation in adult survival, breeding success and immigration, and identify the demographic parameters most strongly related to population change.…”

Section: Introductionmentioning

confidence: 99%

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Does climate change explain the decline of a trans-Saharan Afro-Palaearctic migrant?

Pearce‐Higgins

Yalden

Dougall³

et al. 2008

Oecologia

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There is an urgent need to understand how climate change will impact on demographic parameters of vulnerable species. Migrants are regarded as particularly vulnerable to climate change; phenological mismatch has resulted in the local decline of one passerine, whilst variations in the survival of others have been related to African weather conditions. However, there have been few demographic studies on trans-Saharan non-passerine migrants, despite these showing stronger declines across Europe than passerines. We therefore analyse the effects of climate on the survival and productivity of common sandpipers Actitis hypoleucos, a declining non-passerine long-distant migrant using 28 years' data from the Peak District, England. Adult survival rates were significantly negatively correlated with winter North Atlantic Oscillation (NAO), being lower when winters were warm and wet in western Europe and cool and dry in northwest Africa. Annual variation in the productivity of the population was positively correlated with June temperature, but not with an index of phenological mismatch. The 59% population decline appears largely to have been driven by reductions in adult survival, with local productivity poorly correlated with subsequent population change, suggesting a low degree of natal philopatry. Winter NAO was not significantly correlated with adult survival rates in a second, Scottish Borders population, studied for 12 years. Variation in climatic conditions alone does not therefore appear to be responsible for common sandpiper declines. Unlike some passerine migrants, there was no evidence for climate-driven reductions in productivity, although the apparent importance of immigration in determining local recruitment complicates the assessment of productivity effects. We suggest that further studies to diagnose common sandpiper declines should focus on changes in the condition of migratory stop-over or wintering locations. Where possible, these analyses should be repeated for other declining migrants.

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