Interactive effects of rising temperatures and urbanisation on birds across different climate zones: A mechanistic perspective

Sumasgutner, Petra; Cunningham, Susan J.; Hegemann, Arne; Amar, Arjun; Watson, Hannah; Nilsson, Johan; Andersson, Martin N.; Isaksson, Caroline

doi:10.1111/gcb.16645

Cited by 11 publications

(9 citation statements)

References 345 publications

(378 reference statements)

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“…While warmer temperatures may confer energetic savings for some species (e.g. shortened incubation periods (Bleu et al ., 2017), reduced energetic stress due to warmer winters (Zuckerberg et al ., 2011)), the prevailing expectations for birds suggest that positive responses to warming temperatures would occur predominantly in communities in cooler environments, whereas communities in warmer climates would exhibit negative responses (Sumasgutner et al ., 2023). However, our results demonstrate richness increases and less intense declines in abundance in areas in both warm and cool climates throughout the United States, highlighting that positive biodiversity responses to increasing temperatures can occur irrespective of climatic zone (Figure 1, S3) (Peel et al ., 2007).…”

Section: Discussionmentioning

confidence: 99%

“…This could in turn lead to changes in habitat suitability and the necessity to emigrate to more favorable areas (Heinrichs et al ., 2016). Alternatively, the instances in which climate change was more influential than LULC change and gave rise to an increase (or reduced decline) in biodiversity imply the opposite: energetic savings, increased resource availability, and improved habitat suitability (Hawkins et al ., 2003, Schaefer et al ., 2008, Sumasgutner et al ., 2023). However, the levels of LULC change were relatively low compared to the levels of temperature and precipitation change.…”

Section: Discussionmentioning

confidence: 99%

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The interacting effects of climate and land-use/land-cover changes on ecological communities

Thompson,

Chase,

Remelgado

et al. 2023

Preprint

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Human activities continue to create land-use/land-cover (LULC) change across the Earth’s surface, and together with climate change, are major drivers of changes in biodiversity through time. However, the impacts of these spatiotemporally variable drivers on biodiversity change can be complex. We examined the effects of interactions between climate and LULC change on bird communities across the continental United States over nearly three decades. We analyzed temperature and precipitation data alongside data on tree-canopy, cropland, urban, and surface-water cover to understand how climate/LULC-change interactions influence species richness and abundance. Our results revealed stable or increasing trends in species richness, but a decline in overall abundance primarily from common species and a consequent increase in aspects of evenness of communities. We found that areas experiencing warming and drying climates exhibited increased species richness and slower declines in abundance. However, impacts of LULC change had contrasting effects on richness and abundance. Areas that experienced increasing tree-canopy cover over time had increasing trends in species richness, but exacerbated declines in abundance. On the other hand, areas with increasing cropland had moderated abundance declines, but more declining trends in richness. Finally, we found that the effects of climate/LULC-change interactions varied across the range of each pressure. While some interactions support a dominant role of climate change in structuring communities, others indicate that LULC change can mitigate or exacerbate the impact of climate change on biodiversity. Overall, our results highlight the importance of considering the direction and magnitude of each driver when assessing how climate and LULC interactions shape ecological communities.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The interacting effects of climate and land-use/land-cover changes on ecological communities

Thompson,

Chase,

Remelgado

et al. 2023

Preprint

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“…This phenomenon results from the prevalence of heat-absorbing surfaces like concrete, asphalt, and buildings. Climate change can amplify the urban heat island effect, resulting in elevated temperatures and heightened health risks for urban inhabitants, including heat stress, heatstroke, and respiratory problems [ 1 ]. Moreover, increasing global temperatures lead to more frequent, prolonged, and intense heatwaves.…”

Section: Introductionmentioning

confidence: 99%

Climate change, air quality, and respiratory health: a focus on particle deposition in the lungs

Chang,

Lee,

Chang

et al. 2023

Annals of Medicine

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This review article delves into the multifaceted relationship between climate change, air quality, and respiratory health, placing a special focus on the process of particle deposition in the lungs. We discuss the capability of climate change to intensify air pollution and alter particulate matter physicochemical properties such as size, dispersion, and chemical composition. These alterations play a significant role in influencing the deposition of particles in the lungs, leading to consequential respiratory health effects. The review paper provides a broad exploration of climate change’s direct and indirect role in modifying particulate air pollution features and its interaction with other air pollutants, which may change the ability of particle deposition in the lungs. In conclusion, climate change may play an important role in regulating particle deposition in the lungs by changing physicochemistry of particulate air pollution, therefore, increasing the risk of respiratory disease development.

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“…Urbanisation has greatly altered the environment to serve the need of one species: humans Seto, Güneralp et al ( 2012 ). The process of urbanisation transforms natural areas to artificial environments characterised by high levels of night light, noise, and air pollution, changes in resource availability and quality (Sumasgutner, Cunningham et al 2023 ), competition with alien species and alteration of species composition which includes pets, livestock and high densities of humans (Faeth et al 2005 ; Shanahan et al 2014 ). These new challenges presented by cities cause a huge negative impact in reducing the local biodiversity, where only a few species persist (so-called biotic homogenisation; McKinney 2006 ).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the constant exposure to stressors in urban areas (i.e. light, noise and air pollution or urban heat; see review in Sumasgutner, Cunningham et al ( 2023 )) might impact health and fitness.…”

Section: Introductionmentioning

confidence: 99%

Integument colouration and circulating carotenoids in relation to urbanisation in Eurasian kestrels (Falco tinnunculus)

Sumasgutner,

Nilles,

Hykollari

et al. 2023

Sci Nat

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Urbanisation is one of the biggest environmental challenges of our time, yet we still lack an integrative understanding of how cities affect behaviour, physiology and parasite susceptibility of free-living organisms. In this study, we focus on carotenoids, strictly dietary micronutrients that can either be used as yellow-red pigments, for integument colouration (signalling function), or as antioxidants, to strengthen the immune system (physiological function) in an urban predator, the Eurasian kestrel (Falco tinnunculus). Kestrels are specialised vole hunters but shift to avian prey in cities where diurnal rodents are not sufficiently available. This different foraging strategy might determine the quantity of carotenoids available. We measured integument colouration, circulating carotenoids in the blood and ectoparasite burden in kestrels along an urban gradient. Our results showed that nestlings that were raised in more urbanised areas displayed, unrelated to their ectoparasite burden, a paler integument colouration. Paler colours were furthermore associated with a lower concentration of circulating carotenoids. These findings support the hypothesis that the entire urban food web is carotenoid deprived and only prey of low quality with low carotenoid content is available (e.g. fewer carotenoids in urban trees, insects, small birds and finally kestrels). The alternative hypothesis that nestlings allocate carotenoids to reduce physiological stress and/or to cope with parasites rather than invest into colouration could not be supported. Our study adds to existing evidence that urban stressors negatively affect carotenoid production in urban areas, a deficiency that dissipate into higher trophic levels.

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Interactive effects of rising temperatures and urbanisation on birds across different climate zones: A mechanistic perspective

Cited by 11 publications

References 345 publications

The interacting effects of climate and land-use/land-cover changes on ecological communities

The interacting effects of climate and land-use/land-cover changes on ecological communities

Climate change, air quality, and respiratory health: a focus on particle deposition in the lungs

Integument colouration and circulating carotenoids in relation to urbanisation in Eurasian kestrels (Falco tinnunculus)

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