Spring phenology delays in an insular subtropical songbird: is response to climate change constrained by population size?

Effects of weather variation on the timing and success of breeding in two cavity-nesting species in a subtropical montane forest in Taiwan

“…In addition, the breeding densities of both study species declined over the 5-yr study period, which appears to be similar to overall population trends in Taiwan (Ko et al 2014(Ko et al , 2015. Population declines may reduce genetic diversity, resulting in insufficient plasticity to adjust to climatic fluctuations (Frankham 2005, Doi et al 2010, Gordo and Doi 2012. Thus, it is important to clarify the main causes of current widespread population declines, and to use this information to predict population dynamics under future climate scenarios.…”

“…Many studies have demonstrated that climate change is affecting the onset of avian reproduction and nest survival, either directly through increases in extreme weather events (Bolger et al 2005, Pipoly et al 2013, or indirectly through changes in interspecies interactions (Visser et al 2004(Visser et al , 2006. However, most evidence of this phenomenon has been obtained from studies conducted in temperate regions (Dunn and Winkler 2010), with publications about the impact of climate change on the breeding ecology of tropical and subtropical passerines remaining scarce (Gordo andDoi 2012, S xekercioglu et al 2012). The causes and effects of climate change differ greatly across locations (Saether et al 2003, Lyon et al 2008.…”

Phenological tracking of a seasonal climate window in a recovering tropical island bird species

“…Little is known, however, about the potential for adaptive plasticity to climate change in extremely rare and genetically bottlenecked species. Plasticity to climate change may be constrained in small island populations of birds, such that responses fail to be adaptive, perhaps because of low genetic diversity (Gordo and Doi 2012). Some island species that have recovered from population bottlenecks, such as the Seychelles warbler (Acrocephalus sechellensis), have demonstrated adaptability in their overall breeding seasonality in response to environmental conditions (Komdeur 1996;Komdeur and Daan 2005).…”

Full Issue

“…In addition, the breeding densities of both study species declined over the 5-yr study period, which appears to be similar to overall population trends in Taiwan (Ko et al 2014(Ko et al , 2015. Population declines may reduce genetic diversity, resulting in insufficient plasticity to adjust to climatic fluctuations (Frankham 2005, Doi et al 2010, Gordo and Doi 2012. Thus, it is important to clarify the main causes of current widespread population declines, and to use this information to predict population dynamics under future climate scenarios.…”

“…Many studies have demonstrated that climate change is affecting the onset of avian reproduction and nest survival, either directly through increases in extreme weather events (Bolger et al 2005, Pipoly et al 2013, or indirectly through changes in interspecies interactions (Visser et al 2004(Visser et al , 2006. However, most evidence of this phenomenon has been obtained from studies conducted in temperate regions (Dunn and Winkler 2010), with publications about the impact of climate change on the breeding ecology of tropical and subtropical passerines remaining scarce (Gordo andDoi 2012, S xekercioglu et al 2012). The causes and effects of climate change differ greatly across locations (Saether et al 2003, Lyon et al 2008.…”