UK birds are laying eggs earlier

Crick, H. Q. P.; Dudley, Caroline; Glue, David E.; Thomson, David

doi:10.1038/41453

Cited by 549 publications

(481 citation statements)

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“…Visser et al 1998Visser et al , 2003Visser et al , 2006Gienapp et al 2005;Both et al 2006;Charmantier et al 2008). As a consequence of the warming spring temperatures, many bird species have advanced their laying date (Crick et al 1997;McCleery & Perrins 1998; but see also Visser et al 1998, 2003and Barbraud & Weimerskirch 2006 (Charmantier et al 2008). Furthermore, the observed advance in laying dates in long-term studies often show a 'broken-stick' pattern where there is little or no change in the laying dates in the period from the 1950s to 1970s, but in the later period from the 1970s onwards there is a strong advancement.…”

Section: Introductionmentioning

confidence: 99%

Decline in the frequency and benefits of multiple brooding in great tits as a consequence of a changing environment

2009

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For multiple-brooded species, the number of reproductive events per year is a major determinant of an individual's fitness. Where multiple brooding is facultative, its occurrence is likely to change with environmental conditions, and, as a consequence, the current rates of environmental change could have substantial impacts on breeding patterns. Here we examine temporal population-level trends in the proportion of female great tits (Parus major) producing two clutches per year ('double brooding') in four long-term study populations in The Netherlands, and show that the proportion of females that double brood has declined in all populations, with the strongest decline taking place in the last 30 years of the study. For one of the populations, for which we have data on caterpillar abundance, we show that the probability that a female produces a second clutch was related to the timing of her first clutch relative to the peak in caterpillar abundance, and that the probability of double brooding declined over the study period. We further show that the number of recruits from the second clutch decreased significantly over the period in all populations. Our results indicate that adjustment to changing climatic conditions may involve shifts in life-history traits other than simply the timing of breeding.

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Section: Introductionmentioning

confidence: 99%

Decline in the frequency and benefits of multiple brooding in great tits as a consequence of a changing environment

2009

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“…Global warming may a¡ect the physiology, distributions, phenology and adaptations of plants and animals (for a review, see Hughes 2000). For example, since 1966 the growing season of plants has advanced by approximately eight days in northern latitudes (Myneni et al 1997), the arrival date of some migratory birds in Britain became signi¢cantly earlier between 1974 and 1999 (Jenkins & Watson 2000) and the laying dates of many British birds became increasingly earlier throughout 1971^1997 (Crick et al 1997;McCleery & Perrins 1998). Similarly, Berthold (1991) reported that many bird species in Europe altered their migratory habits and attributed the above phenomena to global warming.…”

Section: Introductionmentioning

confidence: 99%

Global warming and body mass decline in Israeli passerine birds

Yom‐Tov

2001

Proc. R. Soc. Lond. B

157

125

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Global warming may a¡ect the physiology, distributions, phenology and adaptations of plants and animals. In Israel, minimum summer temperatures increased by an average of 0.26 8C per decade during the second half of the 20th century. Bergmann's rule predicts that, in warm-blooded animals, races from warm regions are smaller than races from cold regions. Numerous studies have reported general correlations between body mass in fossil animals and independently established palaeoclimatic changes from various parts of the world in accordance with this rule. Using museum specimens, I tested the prediction that the body mass and tarsus length of ¢ve resident passerine species in Israel declined between 1950 and 1999. The body mass of four species (the graceful warbler Prinia gracilis, the house sparrow Passer domesticus, the yellow-vented bulbul Pycnonotus xanthopygos and the Sardinian warbler Sylvia melanocephala, but not of the crested lark Galerida cristata) declined signi¢cantly during this period. Tarsus length also declined signi¢cantly during this period for two species (the graceful warbler and the house sparrow). Body condition (body mass-to-tarsus length ratio) decreased in the Sardinian warbler, the yellow-vented bulbul and the crested lark. It is suggested that the above declines in body mass and tarsus length are due to global warming and also in accordance with Bergmann's rule. The above explanation does not exclude the possibility that other factors, such as a decrease in food availability, contributed to the decline in body mass. These declines may have serious implications for community structure and competition among bird species and may a¡ect the survival of small passerines.

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“…Numerous studies have indicated that the phenophase has changed in many regions around the world, for example, the advance of spring phenophase, the delay of autumn phenophase, and birds laying eggs earlier (Crick et al, 1997;Menzel and Fabian, 1999;Peñuelas and Filella, 2001;Both and Visser, 2001) due to surface warming. In particular, the rising spring temperatures during the past century have advanced the timing of leafing and flowering in many species at high northern latitudes in both Europe (Chmielewsky and Roetzer, 2001;Peñuelas et al, 2002) and North America (Schwartz and Reiter, 2000;Bradley et al, 1999;Abu-Asab et al, 2001;Beaubien and Freeland, 2000).…”

Section: Introductionmentioning

confidence: 99%

Spring Phenophases in Recent Decades Over Eastern China and Its Possible Link to Climate Changes

Zheng

Hao

et al. 2006

Climatic Change

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Abstract. In light of the observed climate changes in recent decades over eastern China, we studied the changes in spring phenophases of woody plants observed at 16-stations during 1963-1996, and explored the possible link between the spring phenophases changes and climate changes before the phenophase onset. It is found that, in the region north of 33 • N (including Northeast, North China and the lower reaches of the Huaihe River), the phenophase advanced 1.1-4.3 days per decade for early spring and 1.4-5.4 days per decade for late spring, but in the eastern part of the southwest China it was dealyed by 2.9-6.9 days per decade in early spring and 2.4-6.2 days per decade in late spring. One outstanding feature is identified in Guangzhou in south China, where significant advance of 7.5 days per decade in early spring and delay of 4.6 days per decade in late spring were detected. Statistically siginficant correlation was found between the changes of spring phenophase and the temperatures of one or several months before the phenophase onset. The relationship between the trend of phenophase change and temperature change was highly nonlinear (more sensitivity to cooling than to warming) and reached an asymptote 0.5 • C per decade, which may have implication in the responses of the ecosystem in a future global warming scenario. In addition, we also examined the link between the spring phenophase, and length and mean temperature of the growing season, and the analyses suggested that they were highly correlated as well.

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UK birds are laying eggs earlier

Cited by 549 publications

References 3 publications

Decline in the frequency and benefits of multiple brooding in great tits as a consequence of a changing environment

Decline in the frequency and benefits of multiple brooding in great tits as a consequence of a changing environment

Global warming and body mass decline in Israeli passerine birds

Spring Phenophases in Recent Decades Over Eastern China and Its Possible Link to Climate Changes

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