Long-term population declines in Danish trans-Saharan migrant birds

Fox, Tony

doi:10.1080/00063650809461532

Cited by 59 publications

(51 citation statements)

References 41 publications

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“…This mismatch has resulted in population consequences in a long-distance migratory bird, the pied flycatcher, Ficedula hypoleuca; populations declined strongest in forests with an early and narrow food peak (Both et al 2006). These declines were owing to a limited reaction of breeding date to increased spring temperatures, possibly because arrival from the African wintering grounds has not advanced (Both & Visser 2001;Hü ppop & Winkel 2006). Recently, it was shown that across Europe, migrant species with the least temporal advance in spring arrival date declined most during the last two decades (Møller et al 2008), suggesting that the problem of insufficient adjustment of arrival phenology to climate change has recently become a more general cause of population declines in long-distance migrants.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, not all areas in Europe have experienced the same amount of spring warming during the pre-laying period of migrant birds (Both et al 2004;Both & te Marvelde 2007), and consequently the detrimental effect of an increased mismatch is only expected in areas with an advanced phenology. Here, we aim to address the generality of an increased trophic mismatch between food availability and requirements as a consequence of climate change and examine whether this could be one of the causes of the widespread population declines of long-distance migrants in Europe (Sanderson et al 2006;Heldbjerg & Fox 2008).…”

Section: Introductionmentioning

confidence: 99%

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Avian population consequences of climate change are most severe for long-distance migrants in seasonal habitats

et al. 2009

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One consequence of climate change is an increasing mismatch between timing of food requirements and food availability. Such a mismatch is primarily expected in avian long-distance migrants because of their complex annual cycle, and in habitats with a seasonal food peak. Here we show that insectivorous long-distance migrant species in The Netherlands declined strongly (1984 -2004) in forests, a habitat characterized by a short spring food peak, but that they did not decline in less seasonal marshes. Also, within generalist long-distance migrant species, populations declined more strongly in forests than in marshes. Forest-inhabiting migrant species arriving latest in spring declined most sharply, probably because their mismatch with the peak in food supply is greatest. Residents and short-distance migrants had non-declining populations in both habitats, suggesting that habitat quality did not deteriorate. Habitat-related differences in trends were most probably caused by climate change because at a European scale, long-distance migrants in forests declined more severely in western Europe, where springs have become considerably warmer, when compared with northern Europe, where temperatures during spring arrival and breeding have increased less. Our results suggest that trophic mismatches may have become a major cause for population declines in long-distance migrants in highly seasonal habitats.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Avian population consequences of climate change are most severe for long-distance migrants in seasonal habitats

et al. 2009

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“…There is growing evidence that many Afro-Palaearctic migrant bird populations in Europe have undergone dramatic population declines over recent decades (Böhning-Gaese & Bauer 1996, Sanderson et al 2006, Hewson et al 2007, Heldbjerg & Fox 2008. However, the complexity of migrants' life-cycles can make it difficult to determine the causes of population change, as limiting factors may operate on breeding, wintering or staging grounds (Robbins 1989, Sherry & Holmes 1996, Holmes 2007.…”

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confidence: 99%

Declines in British-breeding populations of Afro-Palaearctic migrant birds are linked to bioclimatic wintering zone in Africa, possibly via constraints on arrival time advancement

et al. 2012

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“…Previous studies have suggested that a trophic mismatch due to climate change may help explaining widespread population decline of long-distance migratory birds in Europe (Sanderson et al, 2006;Heldbjerg and Fox, 2008). However, the known decline of European longdistance migrants (Berthold et al, 1998) might be also attributed to a mismatch of information production, or, most probably, to the additive or interactive effects of the trophic and informational mismatches.…”

Section: Pairs Of Resident-migrant Birds As Study Models Of a Phenolomentioning

confidence: 85%

Informational Mismatches: A Neglected Threat of Climate Change to Interspecific Interactions

Parejo

2016

Front. Ecol. Evol.

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Interspecific interactions are deeply affected by the current scenario of climate change. This is because interactions are sensitive to many traits of interacting species as phenology, distribution, behavior, and relative abundances which may be differently influenced by climate change in each species. In this scenario, positive interactions, which require temporal coordination of events of life history of interacting species, could be particularly altered due to differential effects of climate change on phenology, apart from by the effects on abundance and distribution. Hitherto, studies focusing on the effects of climate change on positive biotic interactions are scarce and mainly focused on plant-pollinator interactions. Here I propose that, by inducing informational mismatches, climate change may lead to individuals from competing species relying on heterospecific social information to making mis-or un-informed decisions. The idea is that competing species are valuable sources of social information to each other provided overlap of their activities occurs. However, whenever coordination of events fails, competing species will co-occur at the wrong moment, co-occur only in small numbers or even not co-occur at all and thus they will not be able to access useful or any social information from heterospecifics. In that scenario, interacting species would be mis-or un-informed, and, consequently, decision taking will be impaired, leading to disequilibrium in the community. Throughout the manuscript, I will develop the idea of mismatches of information and illustrate it with some case studies.

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Long-term population declines in Danish trans-Saharan migrant birds

Cited by 59 publications

References 41 publications

Avian population consequences of climate change are most severe for long-distance migrants in seasonal habitats

Avian population consequences of climate change are most severe for long-distance migrants in seasonal habitats

Declines in British-breeding populations of Afro-Palaearctic migrant birds are linked to bioclimatic wintering zone in Africa, possibly via constraints on arrival time advancement

Informational Mismatches: A Neglected Threat of Climate Change to Interspecific Interactions

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