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Chow PKY, Uchida K, Koizumi I. 'Ripple effects' of urban environmental characteristics on cognitive performances in Eurasian red squirrels. J Anim Ecol 2024; 93:1078-1096. [PMID: 38924529 DOI: 10.1111/1365-2656.14126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 05/22/2024] [Indexed: 06/28/2024]
Abstract
Urban areas are expanding exponentially, leading more species of wildlife living in urban environments. Urban environmental characteristics, such as human disturbance, induce stress for many wildlife and have been shown to affect some cognitive traits, such as innovative problem-solving performance. However, because different cognitive traits have common cognitive processes, it is possible that urban environmental characteristics may directly and indirectly affect related cognitive traits (the ripple effect hypothesis). We tested the ripple effect hypothesis in urban Eurasian red squirrels residing in 11 urban areas that had different urban environmental characteristics (direct human disturbance, indirect human disturbance, areas of green coverage and squirrel population size). These squirrels were innovators who had previously repeatedly solved a food extraction task (the original task). Here, we examined whether and how urban environmental characteristics would directly and indirectly influence performance in two related cognitive traits, generalisation and (long-term) memory. The generalisation task required the innovators to apply the learned successful solutions when solving a similar but novel problem. The memory task required them to recall the learned solution of the original task after an extended period of time. Some of the selected urban environmental characteristics directly influenced the task performance, both at the population level (site) and at individual levels. Urban environmental characteristics, such as increased direct and indirect human disturbance, decreased the proportion of success in solving the generalisation task or the memory task at the population (site) level. Increased direct human disturbance and less green coverage increased the solving efficiency at individual levels. We also found an indirect effect in one of the urban environmental characteristics, indirect human disturbance, in the generalisation task, but not the memory task. Such an effect was only seen at the individual level but not at the population level; indirect human disturbance decreased the first original latency, which then decreased the generalisation latency across successes. Our results partially support the ripple effect hypothesis, suggesting that urban environmental characteristics are stressors for squirrels and have a greater impact on shaping cognitive performance than previously shown. Together, these results provide a better understanding of cognitive traits that support wildlife in adapting to urban environments.
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Affiliation(s)
- Pizza Ka Yee Chow
- Division of Psychology, University of Chester, Chester, UK
- Ecology and Genetic Research Unit, University of Oulu, Oulu, Finland
- Division of Biosphere Science, Faculty of Env.Earth Science, Hokkaido University, Sapporo, Japan
| | - Kenta Uchida
- Division of Biosphere Science, Faculty of Env.Earth Science, Hokkaido University, Sapporo, Japan
- Department of Ecology & Evolutionary Biology, UCLA, Los Angeles, California, USA
| | - Itsuro Koizumi
- Division of Biosphere Science, Faculty of Env.Earth Science, Hokkaido University, Sapporo, Japan
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2
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Reid R, Capilla-Lasheras P, Haddou Y, Boonekamp J, Dominoni DM. The impact of urbanization on health depends on the health metric, life stage and level of urbanization: a global meta-analysis on avian species. Proc Biol Sci 2024; 291:20240617. [PMID: 39016598 PMCID: PMC11253839 DOI: 10.1098/rspb.2024.0617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/23/2024] [Accepted: 06/24/2024] [Indexed: 07/18/2024] Open
Abstract
Stressors associated with urban habitats have been linked to poor wildlife health but whether a general negative relationship between urbanization and animal health can be affirmed is unclear. We conducted a meta-analysis of avian literature to test whether health biomarkers differed on average between urban and non-urban environments, and whether there are systematic differences across species, biomarkers, life stages and species traits. Our dataset included 644 effect sizes derived from 112 articles published between 1989 and 2022, on 51 bird species. First, we showed that there was no clear impact of urbanization on health when we categorized the sampling locations as urban or non-urban. However, we did find a small negative effect of urbanization on health when this dichotomous variable was replaced by a quantitative variable representing the degree of urbanization at each location. Second, we showed that the effect of urbanization on avian health was dependent on the type of health biomarker measured as well as the individual life stage, with young individuals being more negatively affected. Our comprehensive analysis calls for future studies to disentangle specific urban-related drivers of health that might be obscured in categorical urban versus non-urban comparisons.
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Affiliation(s)
- Rachel Reid
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Graham Kerr Building, 82 Hillhead Street, GlasgowG12 8QQ, UK
| | - Pablo Capilla-Lasheras
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Graham Kerr Building, 82 Hillhead Street, GlasgowG12 8QQ, UK
| | - Yacob Haddou
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Graham Kerr Building, 82 Hillhead Street, GlasgowG12 8QQ, UK
| | - Jelle Boonekamp
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Graham Kerr Building, 82 Hillhead Street, GlasgowG12 8QQ, UK
| | - Davide M. Dominoni
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Graham Kerr Building, 82 Hillhead Street, GlasgowG12 8QQ, UK
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3
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Neumann AE, Suarez-Rubio M, Renner SC. Haemosporidian intensity and nestlings' life-history along an urban-to-rural gradient. Sci Rep 2024; 14:17018. [PMID: 39043828 PMCID: PMC11266576 DOI: 10.1038/s41598-024-67824-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 07/16/2024] [Indexed: 07/25/2024] Open
Abstract
Urban areas, i.e. dense housing and reduced green spaces, can significantly impact avian health, through altering land use and increasing biotic and abiotic stress. This study assessed the association of urbanization on haemosporidian infections, vectors, immune response, and body condition in Parus major nestlings, across four classes of urbanization along an urban-to-rural gradient in Vienna, Austria. Contrary to our expectations, vector abundance remained consistent across the gradient, while an increase in leukocyte count is positively associated with total parasite intensity. We found that nestlings in more urbanized areas exhibited higher parasite intensity and altered immune response, as evidenced by variations in the heterophil to lymphocyte ratio and leukocyte counts. Culicidae female vectors were associated with nestlings' total parasites, scaled mass index, and industrial units. Nestlings in highly developed areas had higher infection rates than those in forests, suggesting increased exposure to infections. However, there was no clear relationship between total female vectors and total parasites. The level of urbanization negatively affected nestling body condition, with a decrease in fat deposits from forested to highly urbanized areas. Our findings highlight the complex interplay between urbanization, vector-borne parasite transmission, and host immune response, emphasizing the need for comprehensive urban planning to improve wildlife health and guarantee ecosystem functioning. Understanding how urbanization affects bird immunity and parasite infections is critical for adapting urban landscapes for wildlife health and ecosystem integrity.
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Affiliation(s)
- Astrid E Neumann
- Urban Productive Ecosystems, Department of Life Science Systems, School of Life Sciences, Technical University of Munich, Hans Carl-von-Carlowitz Platz 2, 85354, Freising, Germany
- Institute of Zoology, Department of Integrative Biology and Biodiversity Research, BOKU University, Gregor-Mendel-Straße 33/I, 1180, Vienna, Austria
| | - Marcela Suarez-Rubio
- Institute of Zoology, Department of Integrative Biology and Biodiversity Research, BOKU University, Gregor-Mendel-Straße 33/I, 1180, Vienna, Austria
| | - Swen C Renner
- Natural History Museum Vienna, Burgring 7, 1080, Vienna, Austria.
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4
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Rodseth E, Sumasgutner P, Tate G, Nilsson JF, Watson H, Maritz MF, Ingle RA, Amar A. Pleiotropic effects of melanin pigmentation: haemoparasite infection intensity but not telomere length is associated with plumage morph in black sparrowhawks. ROYAL SOCIETY OPEN SCIENCE 2024; 11:230370. [PMID: 38577209 PMCID: PMC10987988 DOI: 10.1098/rsos.230370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 09/21/2023] [Accepted: 02/13/2024] [Indexed: 04/06/2024]
Abstract
There is increasing recognition of the potential pleiotropic effects of melanin pigmentation, particularly on immunity, with reports of variation in haemoparasite infection intensity and immune responses between the morphs of colour-polymorphic bird species. In a population of the black sparrowhawk (Accipiter melanoleucus) in western South Africa, light morphs have a higher haemoparasite infection intensity, but no physiological effects of this are apparent. Here, we investigate the possible effects of haemoparasite infection on telomere length in this species and explore whether relative telomere length is associated with either plumage morph or sex. Using quantitative polymerase chain reaction analysis, we confirmed that dark morphs had a lower haemoparasite infection intensity than light morphs. However, we found no differences in telomere length associated with either the haemoparasite infection status or morph in adults, although males have longer telomeres than females. While differences in haemoparasite intensity between morphs are consistent with pleiotropic effects of melanin pigmentation in the black sparrowhawk, we found no evidence that telomere length was associated with haemoparasite infection. Further work is needed to investigate the implications of possible pleiotropic effects of plumage morph and their potential role in the maintenance of colour polymorphism in this species.
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Affiliation(s)
- Edmund Rodseth
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Petra Sumasgutner
- FitzPatrick Institute of African Ornithology, University of Cape Town, Cape Town, South Africa
- Konrad Lorenz Research Centre, Department of Behavioural and Cognitive Biology, University of Vienna, Vienna, Austria
| | - Gareth Tate
- FitzPatrick Institute of African Ornithology, University of Cape Town, Cape Town, South Africa
- Birds of Prey Programme, Endangered Wildlife Trust, Midrand, South Africa
| | - Johan F. Nilsson
- Evolutionary Ecology, Department of Biology, Lund University, Lund, Sweden
| | - Hannah Watson
- Evolutionary Ecology, Department of Biology, Lund University, Lund, Sweden
| | - Michelle F. Maritz
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Robert A. Ingle
- Department of Molecular and Cell Biology, University of Cape Town, Cape Town, South Africa
| | - Arjun Amar
- FitzPatrick Institute of African Ornithology, University of Cape Town, Cape Town, South Africa
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5
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Salmón P, López-Idiáquez D, Capilla-Lasheras P, Pérez-Tris J, Isaksson C, Watson H. Urbanisation impacts plumage colouration in a songbird across Europe: Evidence from a correlational, experimental and meta-analytical approach. J Anim Ecol 2023; 92:1924-1936. [PMID: 37574652 DOI: 10.1111/1365-2656.13982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 06/14/2023] [Indexed: 08/15/2023]
Abstract
Urbanisation is accelerating across the globe, transforming landscapes, presenting organisms with novel challenges, shaping phenotypes and impacting fitness. Urban individuals are claimed to have duller carotenoid-based colouration, compared to their non-urban counterparts, the so-called 'urban dullness' phenomenon. However, at the intraspecific level, this generalisation is surprisingly inconsistent and often based on comparisons of single urban/non-urban populations or studies from a limited geographical area. Here, we combine correlational, experimental and meta-analytical data on a common songbird, the great tit Parus major, to investigate carotenoid-based plumage colouration in urban and forest populations across Europe. We find that, as predicted, urban individuals are paler than forest individuals, although there are large population-specific differences in the magnitude of the urban-forest contrast in colouration. Using one focal region (Malmö, Sweden), we reveal population-specific processes behind plumage colouration differences, which are unlikely to be the result of genetic or early-life conditions, but instead a consequence of environmental factors acting after fledging. Finally, our meta-analysis indicates that the urban dullness phenomenon is well established in the literature, for great tits, with consistent changes in carotenoid-based plumage traits, particularly carotenoid chroma, in response to anthropogenic disturbances. Overall, our results provide evidence for uniformity in the 'urban dullness' phenomenon but also highlight that the magnitude of the effect on colouration depends on local urban characteristics. Future long-term replicated studies, covering a wider range of species and feeding guilds, will be essential to further our understanding of the eco-evolutionary implications of this phenomenon.
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Affiliation(s)
- Pablo Salmón
- Department of Biology, Lund University, Lund, Sweden
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Glasgow, UK
| | - David López-Idiáquez
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Leioa, Spain
- CEFE, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France
| | - Pablo Capilla-Lasheras
- School of Biodiversity, One Health and Veterinary Medicine, University of Glasgow, Glasgow, UK
| | - Javier Pérez-Tris
- Evolution and Conservation Biology Research Group, Department of Biodiversity, Ecology and Evolution, Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Hannah Watson
- Department of Biology, Lund University, Lund, Sweden
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6
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Amjad R, Ruby T, Talib S, Zahra S, Liaquat M, Batool A. Noise-induced hormonal & morphological malformations in breeding pigeons. BRAZ J BIOL 2023; 84:e271945. [PMID: 37255177 DOI: 10.1590/1519-6984.271945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 04/12/2023] [Indexed: 06/01/2023] Open
Abstract
Environmental pollution has the potential to have a significant impact on animal's health especially on birds due to daily exposure and habitat. This experimental study was carried out for a 60 days period in which, a total of 24 pigeon birds with suitable weight (80-100 g) were kept in Animal house with suitable environmental conditions viz, controlled temperature, humidity & light source to minimize any other stress. Out of twenty-four, eighteen birds were divided into three treatment groups (6 birds in each group). Whole experiment was run in triplicate manner in breeding season. One served as Control (Group 1) and remaining three were experimental groups including Road traffic noise (Group 2), Military noise (Group 3) & Human activities noise (Group 4). Noise was applied as recorded high intensity music (1125 Hz/ 90 dB) through speakers for 5-6 hrs. daily. Blood sampling was done after 20, 40 and 60 days by sacrificing treatment birds. Noise stress significantly (p<0.05) increase the serum levels of corticosterone and thyroid stimulating hormone (TSH) in Group 2 while significantly (p<0.05) decrease the serum levels of luteinizing hormone (LH) and follicle stimulating hormone (FSH) of Group 3 birds. Moreover, major fault bars formation was seen both in Group 2 and Group 3. It was concluded as that Noise stress caused rise in serum levels of Corticosterone and TSH but fall in LH and FSH. Along with fault bars formation was also prominent in all treatment groups due to stress hormone.
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Affiliation(s)
- R Amjad
- The Islamia University of Bahawalpur, Department of Zoology, Bahawalpur, Pakistan
| | - T Ruby
- Bahauddin Zakariya University, Institute of Pure and Applied Biology, Zoology Division, Multan, Pakistan
| | - S Talib
- Government Sadiq College Women University, Department of Zoology, Bahawalpur, Pakistan
| | - S Zahra
- Government Sadiq College Women University, Department of Zoology, Bahawalpur, Pakistan
| | - M Liaquat
- Bahauddin Zakariya University, Institute of Pure and Applied Biology, Zoology Division, Multan, Pakistan
| | - A Batool
- University of Narowal, Department of Zoology, Narowal, Pakistan
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7
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Ellis JL, Ponette-González AG, Fry M, Johnson JA. Reduced reflectance and altered color: The potential cost of external particulate matter accumulation on urban Rock Pigeon (Columba livia) feathers. Front Ecol Evol 2023. [DOI: 10.3389/fevo.2023.946624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023] Open
Abstract
Feather quality in birds is considered an honest signal of individual health as feather appearance and function depend on an individual’s ability to maintain them. In addition to flight and insulation, feathers are essential for social interactions and sexual selection in the form of visual signals. Airborne particulate matter (PM) can accumulate on feather surfaces and alter feather appearance. We quantified PM accumulation on Rock Pigeon (Columba livia) feathers and analyzed the spectral properties of extracted particulates. Feathers were sampled from two pigeon populations, one rural and one urban, in the Dallas-Fort Worth area, with 47 and 93% developed land cover, respectively, within 2 km of the populations. We determined accumulated PM gravimetrically after rinsing feathers and then measured the visible-near-infrared diffuse reflectance and color properties of extracted particulates. The rate of PM accumulation on rural birds was higher than on urban birds. However, feather particulates collected from urban pigeons had significantly lower total reflectance, reflectance in the visible portion of the spectrum, lightness, and hue angle compared to those of rural pigeons. The hue angle of rural feather particulates displayed a negative relationship with PM accumulation while total reflectance, reflectance in the visible range, and lightness of urban feather particulates were negatively related to PM accumulation. Our findings suggest that wild birds could incur an urban pollution penalty as PM accumulation has the potential to alter feather properties. Further research is needed to better understand the influence of external PM accumulation on the physiological and behavioral health of birds.
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8
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Deviche P, Sweazea K, Angelier F. Past and future: Urbanization and the avian endocrine system. Gen Comp Endocrinol 2023; 332:114159. [PMID: 36368439 DOI: 10.1016/j.ygcen.2022.114159] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 10/18/2022] [Accepted: 11/02/2022] [Indexed: 11/10/2022]
Abstract
Urban environments are evolutionarily novel and differ from natural environments in many respects including food and/or water availability, predation, noise, light, air quality, pathogens, biodiversity, and temperature. The success of organisms in urban environments requires physiological plasticity and adjustments that have been described extensively, including in birds residing in geographically and climatically diverse regions. These studies have revealed a few relatively consistent differences between urban and non-urban conspecifics. For example, seasonally breeding urban birds often develop their reproductive system earlier than non-urban birds, perhaps in response to more abundant trophic resources. In most instances, however, analyses of existing data indicate no general pattern distinguishing urban and non-urban birds. It is, for instance, often hypothesized that urban environments are stressful, yet the activity of the hypothalamus-pituitary-adrenal axis does not differ consistently between urban and non-urban birds. A similar conclusion is reached by comparing blood indices of metabolism. The origin of these disparities remains poorly understood, partly because many studies are correlative rather than aiming at establishing causality, which effectively limits our ability to formulate specific hypotheses regarding the impacts of urbanization on wildlife. We suggest that future research will benefit from prioritizing mechanistic approaches to identify environmental factors that shape the phenotypic responses of organisms to urbanization and the neuroendocrine and metabolic bases of these responses. Further, it will be critical to elucidate whether factors affect these responses (a) cumulatively or synergistically; and (b) differentially as a function of age, sex, reproductive status, season, and mobility within the urban environment. Research to date has used various taxa that differ greatly not only phylogenetically, but also with regard to ecological requirements, social systems, propensity to consume anthropogenic food, and behavioral responses to human presence. Researchers may instead benefit from standardizing approaches to examine a small number of representative models with wide geographic distribution and that occupy diverse urban ecosystems.
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Affiliation(s)
- Pierre Deviche
- School of Life Sciences, Arizona State University, Tempe, AZ, USA.
| | - Karen Sweazea
- College of Health Solutions, Arizona State University, Phoenix, AZ, USA
| | - Frederic Angelier
- Centre d'Etudes Biologiques de Chizé, UMR7372, CNRS - La Rochelle Universite, Villiers en Bois, France
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9
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Monniez E, Jiguet F, Vignal C, Biard C. Differential effects of anthropogenic noise and vegetation cover on the breeding phenology and success of two urban passerines. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.1058584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The urban environment is associated with a multitude of challenges and stressors for populations of wild species from the surrounding natural environment. Among those, habitat fragmentation and noise pollution are suspected to have negative effects on the behavior and physiology of free-living birds in urban areas. Exposure in early life and chronic exposure to anthropogenic noise could be particularly deleterious, with short-and long-term consequences. In this study, we investigated if noise levels in city parks affect the distribution and reproductive success of two common bird species in the urban environment, the great tit (Parus major) and the blue tit (Cyanistes caeruleus) and if vegetation cover could mitigate those effects. We predicted that high noise levels might correlate with a decreased nest-box occupancy rate, a delayed laying date or a decreased clutch size, hatching, and fledging success. On the contrary, vegetation cover was expected to correlate positively with nest occupancy rate, advanced laying date, increased clutch size, hatching, and fledging success. We used data from population monitoring collected between 2012 and 2019 in parks and green public spaces in the city center and suburbs of Paris, France, and did not find any correlation between nest occupancy rates and noise levels or vegetation cover for both species. Laying date was not significantly related to anthropogenic noise in any species but was delayed with increasing vegetation cover in the great tit, while we did not find any association with clutch size. Hatching success in blue tits negatively correlated with increasing noise levels, and positively with increasing vegetation coverage. Finally, we did not find any correlation between anthropogenic noise or vegetation cover and the clutch size or fledging success in both species. In this study, two closely related species that share a common environment show a different sensibility to environmental parameters during reproduction, a key period for population maintenance. It also highlights the importance of considering multiple parameters when studying wild populations living in the urban environment.
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Saulnier A, Bleu J, Boos A, Millet M, Zahn S, Ronot P, Masoudi IE, Rojas ER, Uhlrich P, Del Nero M, Massemin S. Reproductive differences between urban and forest birds across the years: importance of environmental and weather parameters. Urban Ecosyst 2022. [DOI: 10.1007/s11252-022-01305-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Parenting in the city: effects of urbanization on incubation behaviour and egg temperature in great tits, Parus major. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Capilla‐Lasheras P, Thompson MJ, Sánchez‐Tójar A, Haddou Y, Branston CJ, Réale D, Charmantier A, Dominoni DM. A global meta-analysis reveals higher variation in breeding phenology in urban birds than in their non-urban neighbours. Ecol Lett 2022; 25:2552-2570. [PMID: 36136999 PMCID: PMC9826320 DOI: 10.1111/ele.14099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/18/2022] [Indexed: 01/11/2023]
Abstract
Cities pose a major ecological challenge for wildlife worldwide. Phenotypic variation, which can result from underlying genetic variation or plasticity, is an important metric to understand eco-evolutionary responses to environmental change. Recent work suggests that urban populations might have higher levels of phenotypic variation than non-urban counterparts. This prediction, however, has never been tested across species nor over a broad geographical range. Here, we conducted a meta-analysis of the avian literature to compare urban versus non-urban means and variation in phenology (i.e. lay date) and reproductive effort (i.e. clutch size, number of fledglings). First, we show that urban populations reproduce earlier and have smaller broods than non-urban conspecifics. Second, we show that urban populations have higher phenotypic variation in laying date than non-urban populations. This result arises from differences between populations within breeding seasons, conceivably due to higher landscape heterogeneity in urban habitats. These findings reveal a novel effect of urbanisation on animal life histories with potential implications for species adaptation to urban environments (which will require further investigation). The higher variation in phenology in birds subjected to urban disturbance could result from plastic responses to a heterogeneous environment, or from higher genetic variation in phenology, possibly linked to higher evolutionary potential.
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Affiliation(s)
- Pablo Capilla‐Lasheras
- School of Biodiversity, One Health and Veterinary MedicineUniversity of GlasgowGlasgowUK
| | - Megan J. Thompson
- Département des Sciences BiologiquesUniversité du Québec à MontréalMontrealCanada,Centre d'Ecologie Fonctionnelle et EvolutiveUniversité de Montpellier, CNRS, EPHE, IRDMontpellierFrance
| | | | - Yacob Haddou
- School of Biodiversity, One Health and Veterinary MedicineUniversity of GlasgowGlasgowUK
| | - Claire J. Branston
- School of Biodiversity, One Health and Veterinary MedicineUniversity of GlasgowGlasgowUK
| | - Denis Réale
- Département des Sciences BiologiquesUniversité du Québec à MontréalMontrealCanada
| | - Anne Charmantier
- Centre d'Ecologie Fonctionnelle et EvolutiveUniversité de Montpellier, CNRS, EPHE, IRDMontpellierFrance
| | - Davide M. Dominoni
- School of Biodiversity, One Health and Veterinary MedicineUniversity of GlasgowGlasgowUK
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13
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Marques P, Zandonà E, Amaral J, Selhorst Y, El-Sabaawi R, Mazzoni R, Castro L, Pilastro A. Using fish to understand how cities affect sexual selection before and after mating. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.928277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Urbanization transforms natural and agricultural areas into built landscapes. Such profound habitat alteration imposes strong pressure on phenotypic trait changes through processes related to natural and/or sexual selection. Evidence of how natural selection drives changes to traits in urban biota is increasing, but little is known about the role of sexual selection. In this study, we assessed the effect of urbanization on the expression and interaction of males' pre-mating traits (body size and color) and a post-mating trait (sperm load). We used a widespread invasive species, the guppy (Poecilia reticulata), which is a wellknown model for studying sexual selection, but have never been studied in urban systems for this purpose. We found that urbanization did not affect mean body size or condition, but it resulted in size-dependent reductions in the expression of orange and iridescent colors, as well as sperm load. The orange color was reduced in small urban guppies, while the iridescent colors were reduced in large urban guppies compared to non-urban guppies. The difference in sperm load was only found in large males, with lower sperm load in urban guppies. The relationship between orange color and sperm load was positive in urban guppies but negative in non-urban guppies, while the association between iridescent color and sperm load followed the opposite pattern. Our findings suggest that sexual selection on pre- and post-mating traits is weaker in urban than in non-urban systems and that interactions between such traits are context dependent. These responses can be related to the pollution and altered visual environment of urban systems and provide an opportunity to advance our understanding of the mechanisms determining adaptation in cities.
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14
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Martin AK, Sheridan JA. Body size responses to the combined effects of climate and land use changes within an urban framework. GLOBAL CHANGE BIOLOGY 2022; 28:5385-5398. [PMID: 35758068 DOI: 10.1111/gcb.16292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Alterations in body size can have profound impacts on an organism's life history and ecology with long-lasting effects that span multiple biological scales. Animal body size is influenced by environmental drivers, including climate change and land use change, the two largest current threats to biodiversity. Climate warming has led to smaller body sizes of many species due to impacts on growth (i.e., Bergmann's rule and temperature-size rule). Conversely, urbanization, which serves as a model for investigating the effects of land use changes, has largely been demonstrated to cause size increases, but few studies have examined the combined influences of climate and land use changes on organism size. We present here the background theory on how each of these factors is expected to influence body size, summarize existing evidence of how size has recently been impacted by climate and land use changes, and make several recommendations to guide future research uniting these areas of focus. Given the rapid pace of climate change and urbanization, understanding the combined effects of climate and land use changes on body size is imperative for biodiversity preservation.
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Affiliation(s)
- Amanda K Martin
- Carnegie Museum of Natural History, Pittsburgh, Pennsylvania, USA
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15
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Montes de Oca-Aguilar AC, González-Martínez A, Chan-González R, Ibarra-López P, Smith-Ávila S, Córdoba-Aguilar A, Ibarra-Cerdeña CN. Signs of Urban Evolution? Morpho-Functional Traits Co-variation Along a Nature-Urban Gradient in a Chagas Disease Vector. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.805040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Environmental change (i.e., urbanization) impacts species in contrasting ways, with some species experiencing benefits given their way of life (i.e., blood-sucking insects). How these species respond to such change is not well understood and for species involved in human diseases, this “how” question is particularly important. Most Triatominae bug species inhabit tropical and subtropical forests where their vertebrate hosts’ temporal abundance depends on climate seasonality. However, in human encroached landscapes, triatomines can benefit from resource stability which may lead to adaptive phenotypic change to track novel hosts. We tested for an association between different landscapes and morpho-functional traits linked to sensory, motion, and feeding functions in Triatoma dimidiata and compared fecundity (i.e., number of eggs) in each landscape as a proxy of fitness. Using geometric and traditional morphometric tools, we predicted a morphological simplification in bugs inhabiting urbanized areas. While wing morphology or proboscis were not influenced by landscape class, the opposite occurred for thorax morphology and number of sensilla. Wing and thorax morphology did not covary under modified landscape scenarios, yet we detected a morpho-functional convergence for thorax size and antennal phenotype in both sexes, with a simplification trend, from nature to urban settings. Given no fecundity differences across landscapes, there is no potential reproductive costs. Moreover, the convergence of thorax size and antennal phenotype suggests differences in flight/locomotion performance and host/environment perception, as a possible adaptive response to relaxed selective pressures of the bug’s native habitat. These results imply that T. dimidiata could be adapting to urbanized areas.
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16
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Does the Urban Environment Act as a Filter on the Individual Quality of Birds? BIRDS 2022. [DOI: 10.3390/birds3010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Phenotypic divergences of birds are common between urban and natural habitats and can result from different selective pressures between habitats or maladaptation to the city. No uniform patterns were observed, especially concerning markers of bird health, such as, for example, telomere length. Telomeres are involved in maintaining genome integrity and naturally shorten with age, but environmental stressors can accelerate their attrition. Thus, telomere length can be an indicator of individual quality. Some studies showed that urban breeders had longer telomeres than forest individuals. Two hypotheses can explain this result: (1) urban breeders are younger than forests breeders, and (2) cities act as a filter on individuals and only high-quality birds can successfully reproduce. In this context, we compared the age category (molting pattern) and morphological and physiological characteristics of urban and forest Great Tits before and during breeding. No differences in age or body condition were observed. However, urban breeders were smaller and had shorter telomeres than birds captured in winter. Urban birds had longer telomeres than forest birds, only in winter. These results highlight that urban habitats potentially favor smaller birds. However, the decrease in telomere length between winter and reproduction only in the city suggest a higher cost of reproduction in the city compared to the forest.
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17
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Caizergues AE, Le Luyer J, Grégoire A, Szulkin M, Senar J, Charmantier A, Perrier C. Epigenetics and the city: Non-parallel DNA methylation modifications across pairs of urban-forest Great tit populations. Evol Appl 2022; 15:149-165. [PMID: 35126653 PMCID: PMC8792475 DOI: 10.1111/eva.13334] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/23/2021] [Accepted: 12/01/2021] [Indexed: 12/18/2022] Open
Abstract
Identifying the molecular mechanisms involved in rapid adaptation to novel environments and determining their predictability are central questions in evolutionary biology and pressing issues due to rapid global changes. Complementary to genetic responses to selection, faster epigenetic variations such as modifications of DNA methylation may play a substantial role in rapid adaptation. In the context of rampant urbanization, joint examinations of genomic and epigenomic mechanisms are still lacking. Here, we investigated genomic (SNP) and epigenomic (CpG methylation) responses to urban life in a passerine bird, the Great tit (Parus major). To test whether urban evolution is predictable (i.e. parallel) or involves mostly nonparallel molecular processes among cities, we analysed both SNP and CpG methylation variations across three distinct pairs of city and forest Great tit populations in Europe. Our analyses reveal a polygenic response to urban life, with both many genes putatively under weak divergent selection and multiple differentially methylated regions (DMRs) between forest and city great tits. DMRs mainly overlapped transcription start sites and promotor regions, suggesting their importance in modulating gene expression. Both genomic and epigenomic outliers were found in genomic regions enriched for genes with biological functions related to the nervous system, immunity, or behavioural, hormonal and stress responses. Interestingly, comparisons across the three pairs of city-forest populations suggested little parallelism in both genetic and epigenetic responses. Our results confirm, at both the genetic and epigenetic levels, hypotheses of polygenic and largely nonparallel mechanisms of rapid adaptation in novel environments such as urbanized areas.
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Affiliation(s)
| | - Jeremy Le Luyer
- Ifremer, IRD, Institut Louis‐MalardéUniv Polynésie Française, EIOTaravaoFrench Polynesia
| | | | - Marta Szulkin
- Centre of New TechnologiesUniversity of WarsawWarsawPoland
| | | | | | - Charles Perrier
- CBGP, INRAe, CIRAD, IRD, Montpellier SupAgroUniv. MontpellierMontpellierFrance
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18
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Sinkovics C, Seress G, Pipoly I, Vincze E, Liker A. Great tits feed their nestlings with more but smaller prey items and fewer caterpillars in cities than in forests. Sci Rep 2021; 11:24161. [PMID: 34921179 PMCID: PMC8683465 DOI: 10.1038/s41598-021-03504-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 11/15/2021] [Indexed: 11/29/2022] Open
Abstract
Rapidly increasing urbanisation is one of the most significant anthropogenic environmental changes which can affect demographic traits of animal populations, for example resulting in reduced reproductive success. The food limitation hypothesis suggests that the shortage of high-quality nestling food in cities is a major factor responsible for the reduced reproductive performance in insectivorous birds. To study this explanation, we collected data on the parental provisioning behaviour of urban and forest great tits (Parus major) in three years that varied both in caterpillar availability (the main food of great tit nestlings) and in reproductive success of the birds. In all years, urban parents provisioned caterpillars in a smaller proportion to their nestlings, but the total amount of food per nestling (estimated by the volumes of all prey items) did not differ between habitats. In the two years with much lower reproductive success in urban than forest habitats, urban parents had higher provisioning rates, but provided more non-arthropod food and brought smaller prey items than forest parents. In the year with reduced habitat difference in reproductive success, urban parents were able to compensate for the scarcity of caterpillars by provisioning other arthropods rather than non-arthropod food, and by delivering larger preys than in the other years. Specifically, in this latter year, caterpillars provisioned by urban pairs were cc. twice as large as in the other two years, and were similar in size to caterpillars provisioned in the forest broods. These results show that although urban great tit parents can provide the same quantity of food per nestling as forest parents by reducing their brood size and increasing the per capita feeding rates for nestlings, they cannot compensate fully for the scarcity of high-quality preys (caterpillars) in poor years. In some years, however, favourable conditions for urban caterpillar development can greatly reduce food limitation in cities, allowing urban birds to achieve higher reproductive success. We suggest that urban green areas designed and managed in a way to facilitate conditions for phytophagous arthropods could improve habitat quality for urban birds.
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Affiliation(s)
- Csenge Sinkovics
- Behavioural Ecology Research Group, Center for Natural Sciences, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary.
| | - Gábor Seress
- Behavioural Ecology Research Group, Center for Natural Sciences, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary.,MTA-PE Evolutionary Ecology Research Group, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary
| | - Ivett Pipoly
- Behavioural Ecology Research Group, Center for Natural Sciences, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary.,MTA-PE Evolutionary Ecology Research Group, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary
| | - Ernő Vincze
- Behavioural Ecology Research Group, Center for Natural Sciences, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary.,MTA-PE Evolutionary Ecology Research Group, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary.,Theoretical Population Ecology and Evolution Group, Department of Biology, Lund University, Lund, Sweden
| | - András Liker
- Behavioural Ecology Research Group, Center for Natural Sciences, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary. .,MTA-PE Evolutionary Ecology Research Group, University of Pannonia, Veszprém, PO Box 1158, 8210, Hungary.
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19
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Peneaux C, Grainger R, Lermite F, Machovsky-Capuska GE, Gaston T, Griffin AS. Detrimental effects of urbanization on the diet, health, and signal coloration of an ecologically successful alien bird. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 796:148828. [PMID: 34271392 DOI: 10.1016/j.scitotenv.2021.148828] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Theory suggests that overcrowding and increased competition in urban environments might be detrimental to individual condition in avian populations. Unfavourable living conditions could be compounded by changes in dietary niche with additional consequences for individual quality of urban birds. We analysed the isotopic signatures, signal coloration, body condition, parasitic loads (feather mites and coccidia), and immune responsiveness of 191 adult common (Indian) mynas (Acridotheres tristis) captured in 19 localities with differing levels of urbanization. The isotopic signature of myna feathers differed across low and high urbanized habitats, with a reduced isotopic niche breadth found in highly urbanized birds. This suggests that birds in high urban environments may occupy a smaller foraging niche to the one of less urbanized birds. In addition, higher degrees of urbanization were associated with a decrease in carotenoid-based coloration, higher ectoparasite loads and higher immune responsiveness. This pattern of results suggests that the health status of mynas from more urbanized environments was poorer than mynas from less modified habitats. Our findings are consistent with the theory that large proportions of individual birds that would otherwise die under natural conditions survive due to prevailing top-down and bottom-up ecological processes in cities. Detrimental urban ecological conditions and search for more favourable, less crowded habitats offers the first reasonable explanation for why an ecological invader like the common myna continues to spread within its global invasive range.
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Affiliation(s)
- Chloe Peneaux
- School of Psychology, University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Richard Grainger
- Charles Perkins Centre, The University of Sydney, Sydney, NSW 2050, Australia; School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2050, Australia
| | - Françoise Lermite
- School of Psychology, University of Newcastle, Callaghan, NSW 2308, Australia
| | | | - Troy Gaston
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Andrea S Griffin
- School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia
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20
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Branston CJ, Capilla-Lasheras P, Pollock CJ, Griffiths K, White S, Dominoni DM. Urbanisation weakens selection on the timing of breeding and clutch size in blue tits but not in great tits. Behav Ecol Sociobiol 2021. [DOI: 10.1007/s00265-021-03096-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Abstract
Urbanisation is a globally occurring phenomenon and is predicted to continue increasing rapidly. Urban ecosystems present novel environments and challenges which species must acclimate or adapt to. These novel challenges alter existing or create new selection pressures on behaviours which provide an opportunity to investigate eco-evolutionary responses to contemporary environmental change. We used 7 years of breeding data from urban and forest populations of blue and great tits to understand whether selection for timing of breeding or clutch size differed between the two habitats and species. We found that urban great tits laid eggs earlier than their forest counterparts, but there was no evidence of a difference in selection for earlier breeding. Blue tits, however, did not differ in timing of egg laying between the two habitats, but selection for earlier laying was weaker in the urban environment. Both species laid smaller clutches in the urban site and had positive selection for larger clutch sizes which did not differ in strength for the great tits but did for blue tits, with weaker selection in the urban population. Our results suggest that food availability for nestlings may be constraining urban birds, and that the temporal cues females use to time breeding correctly, such as tree budburst and food availability, may be absent or reduced in urban areas due to lower caterpillar availability. These results have implications for our understanding of the adaptation of wild animals to city life.
Significance statement
Urbanisation is expanding rapidly and changing the environment many species live in. A key challenge is to understand how species adapt to the urban environment, why some species can adapt, why others cannot and what we can do to ensure that cities are ecologically sustainable and biodiversity rich. Here we show that the strength of natural selection for early breeding and larger clutch size is weaker in urban than non-urban blue tits, likely due to reduced and irregular availability of natural insect food in urban areas. This effect was not found in great tits. Thus, urbanisation can alter the selection pressures wild animals are exposed to, but this effect may differ between species, even when closely related. This has implications for our understanding of how species adapt to urban life.
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21
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Jiménez-Peñuela J, Ferraguti M, Martínez-de la Puente J, Soriguer RC, Figuerola J. Urbanization effects on temporal variations of avian haemosporidian infections. ENVIRONMENTAL RESEARCH 2021; 199:111234. [PMID: 34019890 DOI: 10.1016/j.envres.2021.111234] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 05/05/2023]
Abstract
Urbanization is an important human-driven process that leads to biodiversity loss and alters the interactions between organisms, including disease transmission. Although urbanization affects both host and vector communities, the effects on vector-borne pathogens are still poorly understood. Here, we monitored variation in prevalence and richness of three common blood parasites in birds (Plasmodium, Haemoproteus and Leucocytozoon) from localities with different land uses (urban, rural and natural) during two consecutive years (2013 and 2014). Overall, 1400 juvenile house sparrows (Passer domesticus) from 15 localities in southern Spain were included in this study. Haemoproteus and Leucocytozoon prevalence was higher in 2013 than in 2014, particularly in urban and natural habitats for the case of Leucocytozoon. Prevalence was correlated between years for Haemoproteus and Leucocytozoon, independently of the habitat. Additionally, rural habitats harboured significantly higher Haemoproteus lineage richness compared to urban and natural habitats during 2014. Leucocytozoon lineage richness was negatively correlated between years in rural habitats but positively correlated in urban and natural habitats in comparison. Parasite lineages found in birds were homogeneously distributed along habitats and years and the common lineages prevalence were not influenced by them. Our results highlight different patterns of infection depending on the parasite genera probably related to the composition and density of vector communities. The specific reproductive environmental requirements of the different groups of vectors involved in the transmission may be affected by climatic conditions and landscape features.
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Affiliation(s)
| | - Martina Ferraguti
- Department of Theoretical and Computational Ecology (TCE), Institute for Biodiversity and Ecosystem Dynamics (IBED), University of Amsterdam, Science Park 904, Amsterdam, 1098XH, the Netherlands.
| | - Josué Martínez-de la Puente
- Department of Parasitology, University of Granada, Granada, E-41092, Spain; CIBER of Epidemiology and Public Health (CIBERESP), Spain.
| | - Ramón C Soriguer
- Estación Biológica de Doñana (EBD-CSIC), Seville, E-41092, Spain; CIBER of Epidemiology and Public Health (CIBERESP), Spain.
| | - Jordi Figuerola
- Estación Biológica de Doñana (EBD-CSIC), Seville, E-41092, Spain; CIBER of Epidemiology and Public Health (CIBERESP), Spain.
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22
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Dominoni DM, Teo D, Branston CJ, Jakhar A, Albalawi BFA, Evans NP. Feather, But Not Plasma, Glucocorticoid Response to Artificial Light at Night Differs between Urban and Forest Blue Tit Nestlings. Integr Comp Biol 2021; 61:1111-1121. [PMID: 34272860 PMCID: PMC8490687 DOI: 10.1093/icb/icab067] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Urbanization drives phenotypic variation in many animal species. This includes behavioral and physiological traits such as activity patterns, aggression, and hormone levels. A current challenge of urban evolutionary ecology is to understand the environmental drivers of phenotypic variation in cities. Moreover, do individuals develop tolerance to urban environmental factors, which underlie adaptative responses and contribute to the evolution of urban populations? Most available evidence comes from correlative studies and rare experiments where a single urban-related environmental factor has been manipulated in the field. Here we present the results of an experiment in which we tested for differences in the glucocorticoid (CORT) response of urban and rural blue tits nestlings (Cyanistes caeruleus) to artificial light at night (ALAN). ALAN has been suggested to alter CORT response in several animal species, but to date no study has investigated whether this effect of ALAN differs between urban and rural populations. Immediately after hatching, urban and forest broods were either exposed to 2 lux of ALAN (using an LED source mounted inside the nestbox) or received no treatment (dark control). The experiment lasted until the chicks fledged. When the chicks were 13 days old plasma samples were collected to measure baseline CORT concentrations, and feather samples to provide an integrative measure of CORT during growth. Forest birds had higher plasma CORT (pCORT) concentrations than their urban counterparts, irrespective of whether they were exposed to ALAN or not. Conversely, we found population-specific responses of feather CORT to ALAN. Specifically, urban birds that received ALAN had increased feather CORT compared with the urban dark controls, while the opposite was true for the forest birds. pCORT concentrations were negatively associated to fledging success, irrespective of population and treatment, while feather CORT was positively associated to fledging success in broods exposed to ALAN, but negatively in the dark control ones. Our results demonstrate that ALAN can play a role in determination of the glucocorticoid phenotype of wild animals, and may thus contribute to phenotypic differences between urban and rural animals.
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Affiliation(s)
- Davide M Dominoni
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Dylon Teo
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Claire J Branston
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
| | - Aryan Jakhar
- Indian Institute of Science Education and Research, Thiruvananthapuram, India
| | | | - Neil P Evans
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Glasgow, UK
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23
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Smith SH, Hessong-Brown J, Lipshutz SE, Phillips JN, Rochefort C, Derryberry EP, Luther DA. Long-term changes of plumage between urban and rural populations of white-crowned sparrows ( Zonotrichia leucophrys). JOURNAL OF URBAN ECOLOGY 2021. [DOI: 10.1093/jue/juaa038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Urbanization is one of the most extreme forms of land transformation and results in changes to ecosystems and species compositions. As a result, there are strong directional selection pressures compared to nearby rural areas. Despite a surge in research on the different selection pressures on acoustic communication in urban and rural areas, there has been comparatively little investigation into traits involved with visual communication. We measured the plumage of museum specimens of white-crowned sparrows (Zonotrichia leucophrys) from urban and adjacent rural habitats in San Francisco, CA, to assess the effects of divergent habitats on plumage. We found significant differences in dorsal plumage, but not crown plumage, between urban and rural populations that have been diverging over the past 100 years. Urban birds have increasingly darker and duller dorsal plumage, whereas rural birds in adjacent areas have plumage with richer hues and more color complexity. Our findings suggest a newly observed adaptation to urban environments by native species and suggest that many traits, in addition to acoustic signals, may be changing in response to urban selection pressures. Additional collections in urban areas are needed to explore likely divergences in plumage coloration between urban and rural environments.
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Affiliation(s)
- Shawn H Smith
- Environmental Science and Policy Department, George Mason University, Fairfax, VA, USA
| | | | - Sara E Lipshutz
- Department of Biology, Indiana University, Bloomington, IN, USA
| | - Jennifer N Phillips
- Department of Biological Sciences, California Polytechnic State University, San Luis Obispo, CA, USA
- Department of Life Sciences, Texas A&M University-San Antonio, San Antonio, TX, USA
| | | | - Elizabeth P Derryberry
- Department of Ecology and Evolutionary Biology, University of Tennessee Knoxville, Knoxville, TN, USA
| | - David A Luther
- Biology Department, George Mason University, Fairfax, VA, USA
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24
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Abstract
Explaining how animals respond to an increasingly urbanised world is a major challenge for evolutionary biologists. Urban environments often present animals with novel problems that differ from those encountered in their evolutionary past. To navigate these rapidly changing habitats successfully, animals may need to adjust their behaviour flexibly over relatively short timescales. These behavioural changes, in turn, may be facilitated by an ability to acquire, store and process information from the environment. The question of how cognitive abilities allow animals to avoid threats and exploit resources (or constrain their ability to do so) is attracting increasing research interest, with a growing number of studies investigating cognitive and behavioural differences between urban-dwelling animals and their non-urban counterparts. In this review we consider why such differences might arise, focusing on the informational challenges faced by animals living in urban environments, and how different cognitive abilities can assist in overcoming these challenges. We focus largely on birds, as avian taxa have been the subject of most research to date, but discuss work in other species where relevant. We also address the potential consequences of cognitive variation at the individual and species level. For instance, do urban environments select for, or influence the development of, particular cognitive abilities? Are individuals or species with particular cognitive phenotypes more likely to become established in urban habitats? How do other factors, such as social behaviour and individual personality, interact with cognition to influence behaviour in urban environments? The aim of this review is to synthesise current knowledge and identify key avenues for future research, in order to improve our understanding of the ecological and evolutionary consequences of urbanisation.
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Affiliation(s)
- Victoria E Lee
- Centre for Ecology and Conservation, University of Exeter Penryn Campus, Penryn, UK
| | - Alex Thornton
- Centre for Ecology and Conservation, University of Exeter Penryn Campus, Penryn, UK
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25
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Leveau L. United colours of the city: A review about urbanisation impact on animal colours. AUSTRAL ECOL 2021. [DOI: 10.1111/aec.13005] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lucas Leveau
- Departamento de Ecología Genética y Evolución Facultad de Ciencias Exactas y Naturales Universidad de Buenos Aires – IEGEBA (CONICET – UBA) Ciudad Universitaria, Pab 2, Piso 4 Buenos Aires1426Argentina
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26
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An avian urban morphotype: how the city environment shapes great tit morphology at different life stages. Urban Ecosyst 2021. [DOI: 10.1007/s11252-020-01077-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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27
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Corsini M, Schöll EM, Di Lecce I, Chatelain M, Dubiec A, Szulkin M. Growing in the city: Urban evolutionary ecology of avian growth rates. Evol Appl 2021; 14:69-84. [PMID: 33519957 PMCID: PMC7819560 DOI: 10.1111/eva.13081] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 01/03/2023] Open
Abstract
INTRODUCTION Rapid environmental change driven by urbanization offers a unique insight into the adaptive potential of urban-dwelling organisms. Urban-driven phenotypic differentiation is increasingly often demonstrated, but the impact of urbanization (here modelled as the percentage of impervious surface (ISA) around each nestbox) on offspring developmental rates and subsequent survival remains poorly understood. Furthermore, the role of selection on urban-driven phenotypic divergence was rarely investigated to date. METHODS AND RESULTS Data on nestling development and body mass were analysed in a gradient of urbanization set in Warsaw, Poland, in two passerine species: great tits (Parus major) and blue tits (Cyanistes caeruleus). Increasing levels of impervious surface area (ISA) delayed the age of fastest growth in blue tits. Nestling body mass was also negatively affected by increasing ISA 5 and 10 days after hatching in great tits, and 10 and 15 days in blue tits, respectively. High levels of ISA also increased nestling mortality 5 and 10 days after hatching in both species. An analysis of selection differentials performed for two levels of urbanization (low and high ISA) revealed a positive association between mass at day 2 and survival at fledging. DISCUSSION This study confirms the considerable negative impact of imperviousness-a proxy for urbanization level-on offspring development, body mass and survival, and highlights increased selection on avian mass at hatching in a high ISA environment.
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Affiliation(s)
| | - Eva Maria Schöll
- Institute of Wildlife Biology and Game ManagementUniversity of Natural Resources and Life SciencesViennaAustria
| | - Irene Di Lecce
- Centre of New TechnologiesUniversity of WarsawWarsawPoland
| | - Marion Chatelain
- Applied and Trophic EcologyDepartment of ZoologyUniversity of InnsbruckInnsbruckAustria
| | - Anna Dubiec
- Museum and Institute of ZoologyPolish Academy of SciencesWarsawPoland
| | - Marta Szulkin
- Centre of New TechnologiesUniversity of WarsawWarsawPoland
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28
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Davidson GL, Wiley N, Cooke AC, Johnson CN, Fouhy F, Reichert MS, de la Hera I, Crane JMS, Kulahci IG, Ross RP, Stanton C, Quinn JL. Diet induces parallel changes to the gut microbiota and problem solving performance in a wild bird. Sci Rep 2020; 10:20783. [PMID: 33247162 PMCID: PMC7699645 DOI: 10.1038/s41598-020-77256-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 10/15/2020] [Indexed: 12/11/2022] Open
Abstract
The microbial community in the gut is influenced by environmental factors, especially diet, which can moderate host behaviour through the microbiome-gut-brain axis. However, the ecological relevance of microbiome-mediated behavioural plasticity in wild animals is unknown. We presented wild-caught great tits (Parus major) with a problem-solving task and showed that performance was weakly associated with variation in the gut microbiome. We then manipulated the gut microbiome by feeding birds one of two diets that differed in their relative levels of fat, protein and fibre content: an insect diet (low content), or a seed diet (high content). Microbial communities were less diverse among individuals given the insect compared to those on the seed diet. Individuals were less likely to problem-solve after being given the insect diet, and the same microbiota metrics that were altered as a consequence of diet were also those that correlated with variation in problem solving performance. Although the effect on problem-solving behaviour could have been caused by motivational or nutritional differences between our treatments, our results nevertheless raise the possibility that dietary induced changes in the gut microbiota could be an important mechanism underlying individual behavioural plasticity in wild populations.
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Affiliation(s)
- Gabrielle L Davidson
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland.
- Department of Psychology, Downing Street, University of Cambridge, Cambridge, UK.
| | - Niamh Wiley
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Amy C Cooke
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
| | - Crystal N Johnson
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Fiona Fouhy
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Michael S Reichert
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
- Department of Integrative Biology, Oklahoma State University, Stillwater, USA
| | - Iván de la Hera
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
- Department of Integrative Biology, Oklahoma State University, Stillwater, USA
| | - Jodie M S Crane
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
- Kākāpō Recovery Programme, Department of Conservation, 7th Floor, 33 Don Street, Invercargill, 9810, New Zealand
| | - Ipek G Kulahci
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland
- Department of Biological Sciences, University of Notre Dame, 100 Galvin Life Science Center, Notre Dame, IN, 46556, USA
| | - R Paul Ross
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - Catherine Stanton
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Ireland
| | - John L Quinn
- School of Biological, Earth and Environmental Sciences, University College Cork, Distillery Fields, North Mall, Cork, Ireland.
- Environmental Research Institute, University College Cork, Cork, Ireland.
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Putman BJ, Tippie ZA. Big City Living: A Global Meta-Analysis Reveals Positive Impact of Urbanization on Body Size in Lizards. Front Ecol Evol 2020. [DOI: 10.3389/fevo.2020.580745] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Urban environments pose different selective pressures than natural ones, leading to changes in animal behavior, physiology, and morphology. Understanding how animals respond to urbanization could inform the management of urban habitats. Non-avian reptiles have important roles in ecosystems worldwide, yet their responses to urbanization have not been as comprehensively studied as those of mammals and birds. However, unlike mammals and birds, most reptiles cannot easily move away from disturbances, making the selective pressure to adapt to urban environments especially strong. In recent years, there has been a surge in research on the responses of lizards to urbanization, yet no formal synthesis has determined what makes an urban lizard, in other words, which phenotypic traits are most likely to change with urbanization and in which direction? Here, we present a qualitative synthesis of the literature and a quantitative phylogenetic meta-analysis comparing phenotypic traits between urban and non-urban lizard populations. The most robust finding from our analysis is that urban lizards are larger than their non-urban counterparts. This result remained consistent between sexes and taxonomic groups. Hence, lizards that pass through the urban filter have access to better resources, more time for foraging, and/or there is selection on attaining a larger body size. Other results included an increase in the diameters of perches used and longer limb and digit lengths, although this may be a result of increased body size. Urban lizards were not bolder, more active or exploratory, and did not differ in immune responses than non-urban populations. Overall, studies are biased to a few geographic regions and taxa. More than 70% of all data came from three species of anoles in the family Dactyloidae, making it difficult to generalize patterns to other clades. Thus, more studies are needed across multiple taxa and habitats to produce meaningful predictions that could help inform conservation and management of urban ecological communities.
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Sykes BE, Hutton P, McGraw KJ. Sex-specific relationships between urbanization, parasitism, and plumage coloration in house finches. Curr Zool 2020. [DOI: 10.1093/cz/zoaa060] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Historically, studies of condition-dependent signals in animals have been male-centric, but recent work suggests that female ornaments can also communicate individual quality (e.g., disease state, fecundity). There also has been a surge of interest in how urbanization alters signaling traits, but we know little about if and how cities affect signal expression in female animals. We measured carotenoid-based plumage coloration and coccidian (Isospora spp.) parasite burden in desert and city populations of house finches Haemorhous mexicanus to examine links between urbanization, health state, and feather pigmentation in males and females. In earlier work, we showed that male house finches are less colorful and more parasitized in the city, and we again detected such patterns in this study for males; however, urban females were less colorful, but not more parasitized, than rural females. Moreover, contrary to rural populations, we found that urban birds (regardless of sex) with larger patches of carotenoid coloration were also more heavily infected with coccidia. These results show that urban environments can disrupt condition-dependent color expression and highlight the need for more studies on how cities affect disease and signaling traits in both male and female animals.
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Affiliation(s)
- Brooke E Sykes
- School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA
| | - Pierce Hutton
- School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA
| | - Kevin J McGraw
- School of Life Sciences, Arizona State University, Tempe, AZ, 85287, USA
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31
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Physiological and morphological correlates of blood parasite infection in urban and non-urban house sparrow populations. PLoS One 2020; 15:e0237170. [PMID: 32813710 PMCID: PMC7437892 DOI: 10.1371/journal.pone.0237170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 07/21/2020] [Indexed: 02/03/2023] Open
Abstract
In the last decade, house sparrow populations have shown a general decline, especially in cities. Avian malaria has been recently suggested as one of the potential causes of this decline, and its detrimental effects could be exacerbated in urban habitats. It was initially thought that avian malaria parasites would not have large negative effects on wild birds because of their long co-evolution with their hosts. However, it is now well-documented that they can have detrimental effects at both the primo- and chronical infection stages. In this study, we examined avian malaria infection and its physiological and morphological consequences in four populations of wild house sparrows (2 urban and 2 rural). We did not find any relationship between the proportions of infected individuals and the urbanisation score calculated for our populations. However, we observed that the proportion of infected individuals increased during the course of the season, and that juveniles were less infected than adults. We did not detect a strong effect of malaria infection on physiological, morphological and condition indexes. Complex parasite dynamics and the presence of confounding factors could have masked the potential effects of infection. Thus, longitudinal and experimental studies are needed to understand the evolutionary ecology of this very common, but still poorly understood, wild bird parasite.
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32
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Urbanization is associated with differences in age class structure in black-capped chickadees (Poecile atricapillus). Urban Ecosyst 2020. [DOI: 10.1007/s11252-020-01039-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ágh N, Pipoly I, Szabó K, Vincze E, Bókony V, Seress G, Liker A. Does offspring sex ratio differ between urban and forest populations of great tits (Parus major)? Biol Futur 2020; 71:99-108. [PMID: 34554536 DOI: 10.1007/s42977-020-00024-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 06/01/2020] [Indexed: 10/24/2022]
Abstract
Since male and female offspring may have different costs and benefits, parents may use sex ratio adjustment to increase their own fitness under different environmental conditions. Urban habitats provide poorer conditions for nestling development in many birds. Therefore, we investigated whether great tits (Parus major) produce different brood sex ratios in urban and natural habitats. We determined the sex of nestlings of 126 broods in two urban and two forest sites between 2012 and 2014 by molecular sexing. We found that brood sex ratio did not differ significantly between urban and forest habitats either at egg-laying or near fledging. Male offspring were larger than females in both habitats. This latter result suggests that male offspring may be more costly to raise than females, yet our findings suggest that urban great tits do not produce more daughters despite the unfavourable breeding conditions. This raises the possibility that other aspects of urban life, such as better post-fledging survival, might favour males and thereby compensate for the extra energetic costs of producing male offspring.
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Affiliation(s)
- Nóra Ágh
- MTA-PE Evolutionary Ecology Research Group, Department of Limnology, University of Pannonia, Veszprém, Hungary.
| | - Ivett Pipoly
- MTA-PE Evolutionary Ecology Research Group, Department of Limnology, University of Pannonia, Veszprém, Hungary
| | - Krisztián Szabó
- Conservation Genetic Research Group, Institute of Biology, University of Veterinary Medicine Budapest, Budapest, Hungary
| | - Ernő Vincze
- MTA-PE Evolutionary Ecology Research Group, Department of Limnology, University of Pannonia, Veszprém, Hungary
| | - Veronika Bókony
- Lendület Evolutionary Ecology Research Group, Plant Protection Institute, Centre for Agricultural Research, Budapest, Hungary
| | - Gábor Seress
- MTA-PE Evolutionary Ecology Research Group, Department of Limnology, University of Pannonia, Veszprém, Hungary
| | - András Liker
- MTA-PE Evolutionary Ecology Research Group, Department of Limnology, University of Pannonia, Veszprém, Hungary
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Funk A, Hutton P, Earl S, Deviche P, Sweazea K. Short communication: Levels of land use and land cover in Phoenix, Arizona are associated with elevated plasma triglycerides in the Gambel's Quail, Callipepla gambelii. Comp Biochem Physiol A Mol Integr Physiol 2020; 247:110730. [PMID: 32437960 DOI: 10.1016/j.cbpa.2020.110730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 05/04/2020] [Accepted: 05/06/2020] [Indexed: 11/18/2022]
Abstract
Gambel's Quail, Callipepla gambelii, are gregarious birds commonly found in the southwestern deserts of the United States and Northwestern Mexico. With expanding urbanization, these birds are often found in exurban and suburban areas where they have access to food sources that may differ from those used by birds living in rural habitats and, as a result, also differ morphologically and physiologically. To investigate this hypothesis, we compared the morphology and nutritional physiology of quail sampled at sites varying with respect to land use and cover. We hypothesized that quail living in more developed areas have access to a greater variety of and to more stable food resources, and predicted that morphology and nutritional physiology would be associated with degree of urbanization. We sampled adult birds at locations in the greater Phoenix metropolitan, Arizona (USA) area that vary with respect to land use and cover types. At the time of capture, birds were weighed and chest circumference was recorded. We also collected a blood sample from the jugular vein of each individual for analysis of plasma glucose, total proteins, triglycerides, and free glycerol. Consistent with the hypothesis, birds living in more developed environments had larger chest circumferences and higher circulating lipid concentrations than birds living in less developed areas, suggesting greater access to lipid-rich foods. In addition, the areal proportion of grass and lakes was negatively correlated to plasma free glycerol (r = -0.46, p = .031), and positively, but not significantly, correlated to plasma protein concentrations (r = 0.388, p = .073). These results suggest that quail living in areas with more grass have access to less dietary fats than urban birds. The findings are the first to indicate an association between urbanization and the morphology and nutritional physiology of Gambel's Quail, but further study using more and larger samples is needed before these findings can be generalized.
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Affiliation(s)
- Alexander Funk
- School of Life Sciences, Julie Ann Wrigley Global Institute of Sustainability, Tempe, AZ, United States of America
| | - Pierce Hutton
- School of Life Sciences, Julie Ann Wrigley Global Institute of Sustainability, Tempe, AZ, United States of America
| | - Stevan Earl
- Julie Ann Wrigley Global Institute of Sustainability, Tempe, AZ, United States of America
| | - Pierre Deviche
- School of Life Sciences, Julie Ann Wrigley Global Institute of Sustainability, Tempe, AZ, United States of America
| | - Karen Sweazea
- School of Life Sciences, Julie Ann Wrigley Global Institute of Sustainability, Tempe, AZ, United States of America; College of Health Solutions, Arizona State University, Phoenix, AZ, United States of America.
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Grunst ML, Grunst AS, Pinxten R, Eens M. Anthropogenic noise is associated with telomere length and carotenoid-based coloration in free-living nestling songbirds. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:114032. [PMID: 32006886 DOI: 10.1016/j.envpol.2020.114032] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 12/09/2019] [Accepted: 01/21/2020] [Indexed: 06/10/2023]
Abstract
Growing evidence suggests that anthropogenic noise has deleterious effects on the behavior and physiology of free-living animals. These effects may be particularly pronounced early in life, when developmental trajectories are sensitive to stressors, yet studies investigating developmental effects of noise exposure in free-living populations remain scarce. To elucidate the effects of noise exposure during development, we examined whether noise exposure is associated with shorter telomeres, duller carotenoid-based coloration and reduced body mass in nestlings of a common urban bird, the great tit (Parus major). We also assessed how the noise environment is related to reproductive success. We obtained long-term measurements of the noise environment, over a ∼24-h period, and characterized both the amplitude (measured by LAeq, LA90, LA10, LAmax) and variance in noise levels, since more stochastic, as well as louder, noise regimes might be more likely to induce stress. In our urban population, noise levels varied substantially, with louder, but less variable, noise characteristic of areas adjacent to a highway. Noise levels were also highly repeatable, suggesting that individuals experience consistent differences in noise exposure. The amplitude of noise near nest boxes was associated with shorter telomeres among smaller, but not larger, brood members. In addition, carotenoid chroma and hue were positively associated with variance in average and maximum noise levels, and average reflectance was negatively associated with variance in background noise. Independent of noise, hue was positively related to telomere length. Nestling mass and reproductive success were unaffected by noise exposure. Results indicate that multiple dimensions of the noise environment, or factors associated with the noise environment, could affect the phenotype of developing organisms, that noise exposure, or correlated variables, might have the strongest effects on sensitive groups of individuals, and that carotenoid hue could serve as a signal of early-life telomere length.
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Affiliation(s)
- Melissa L Grunst
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, 2610, Wilrijk, Belgium.
| | - Andrea S Grunst
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, 2610, Wilrijk, Belgium
| | - Rianne Pinxten
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, 2610, Wilrijk, Belgium; Faculty of Social Sciences, Antwerp School of Education, Research Group Didactica, University of Antwerp, 2000, Antwerp, Belgium
| | - Marcel Eens
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, 2610, Wilrijk, Belgium
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36
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Grunst ML, Grunst AS, Pinxten R, Bervoets L, Eens M. Carotenoid- but not melanin-based plumage coloration is negatively related to metal exposure and proximity to the road in an urban songbird. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113473. [PMID: 31679871 DOI: 10.1016/j.envpol.2019.113473] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/16/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Rapid urbanization is a global phenomenon that is increasingly exposing organisms to novel stressors. These novel stressors can affect diverse aspects of organismal function, including development of condition-dependent ornaments, which play critical roles in social and sexual selection. We investigated the relationship between metal pollution, proximity to roads, and carotenoid- and melanin-based plumage coloration in a common songbird, the great tit (Parus major). We studied populations located across a well-characterized metal pollution gradient and surrounded by roadway networks. Metal exposure and road-associated pollution could reduce carotenoid-based pigmentation by inducing oxidative stress or affecting habitat quality, but metals could also enhance melanin-based pigmentation, through effects on melanogenesis and testosterone concentrations. Using a large sample size (N > 500), we found that birds residing close to a point source for metals had reduced ultraviolet chroma, a component of carotenoid-based pigmentation. Moreover, birds with high feather metal concentrations had lower carotenoid chroma, hue, and ultraviolet chroma, with effects modified by age class. Birds residing closer to roads also had lower carotenoid chroma and hue. Melanin-based pigmentation showed high between-year repeatability, and no association with anthropogenic pollution. Results suggest that carotenoid-, but not melanin-, based pigmentation is negatively affected by multiple anthropogenic stressors. We are the first to demonstrate a negative association between roads and a plumage-based signaling trait, which could have important implications for sexual signaling dynamics in urban landscapes.
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Affiliation(s)
- Melissa L Grunst
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, 2610, Wilrijk, Belgium.
| | - Andrea S Grunst
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, 2610, Wilrijk, Belgium
| | - Rianne Pinxten
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, 2610, Wilrijk, Belgium; Faculty of Social Sciences, Didactica Research Group, University of Antwerp, 2000, Antwerp, Belgium
| | - Lieven Bervoets
- Department of Biology, Systemic Physiological and Ecotoxicological Research Group, University of Antwerp, 2020, Antwerp, Belgium
| | - Marcel Eens
- Department of Biology, Behavioural Ecology and Ecophysiology Group, University of Antwerp, 2610, Wilrijk, Belgium
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37
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Chatelain M, Drobniak SM, Szulkin M. The association between stressors and telomeres in non‐human vertebrates: a meta‐analysis. Ecol Lett 2019; 23:381-398. [DOI: 10.1111/ele.13426] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 10/10/2019] [Accepted: 10/16/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Marion Chatelain
- Centre of New Technologies University of Warsaw Banacha 2C 02‐097 Warszawa Poland
| | - Szymon M. Drobniak
- Institute of Environmental Sciences Jagiellonian University Gronostajowa 7 30‐387 Kraków Poland
- Ecology & Evolution Research Centre School of Biological, Environmental and Earth Sciences University of New South Wales Sydney Australia
| | - Marta Szulkin
- Centre of New Technologies University of Warsaw Banacha 2C 02‐097 Warszawa Poland
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38
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Pipoly I, Szabó K, Bókony V, Preiszner B, Seress G, Vincze E, Schroeder J, Liker A. Higher Frequency of Extra-Pair Offspring in Urban Than Forest Broods of Great Tits (Parus major). Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00229] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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39
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Ibáñez-Álamo JD, Pineda-Pampliega J, Thomson RL, Aguirre JI, Díez-Fernández A, Faivre B, Figuerola J, Verhulst S. Urban blackbirds have shorter telomeres. Biol Lett 2019; 14:rsbl.2018.0083. [PMID: 29563283 DOI: 10.1098/rsbl.2018.0083] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 02/27/2018] [Indexed: 12/14/2022] Open
Abstract
Urbanization, one of the most extreme human-induced environmental changes, represents a major challenge for many organisms. Anthropogenic habitats can have opposing effects on different fitness components, for example, by decreasing starvation risk but also health status. Assessment of the net fitness effect of anthropogenic habitats is therefore difficult. Telomere length is associated with phenotypic quality and mortality rate in many species, and the rate of telomere shortening is considered an integrative measure of the 'life stress' experienced by an individual. This makes telomere length a promising candidate for examining the effects of urbanization on the health status of individuals. We investigated whether telomere length differed between urban and forest-dwelling common blackbirds (Turdus merula). Using the terminal restriction fragment assay, we analysed telomere length in yearlings and older adults from five population dyads (urban versus forest) across Europe. In both age classes, urban blackbirds had significantly shorter telomeres (547 bp) than blackbirds in natural habitats, indicating lower health status in urban blackbirds. We propose several potential hypotheses to explain our results. Our findings show that even successful city dwellers such as blackbirds pay a price for living in these anthropogenic habitats.
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Affiliation(s)
- Juan Diego Ibáñez-Álamo
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9700 CC Groningen, The Netherlands .,Department of Wetland Ecology, Estación Biológica de Doñana-CSIC, 41092 Seville, Spain
| | - Javier Pineda-Pampliega
- Departament of Biodiversity, Ecology and Evolution, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Robert L Thomson
- FitzPatrick Institute of African Ornithology, DST-NRF Centre of Excellence, University of Cape Town, 7701 Cape Town, South Africa.,Section of Ecology, Department of Biology, University of Turku, 20014 Turku, Finland
| | - José I Aguirre
- Departament of Biodiversity, Ecology and Evolution, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Alazne Díez-Fernández
- Department of Wetland Ecology, Estación Biológica de Doñana-CSIC, 41092 Seville, Spain
| | - Bruno Faivre
- UMR CNRS 6282, Biogéosciences, Université Bourgogne Franche-Comté, 21000 Dijon, France
| | - Jordi Figuerola
- Department of Wetland Ecology, Estación Biológica de Doñana-CSIC, 41092 Seville, Spain
| | - Simon Verhulst
- Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9700 CC Groningen, The Netherlands
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Zollinger SA, Dorado-Correa A, Goymann W, Forstmeier W, Knief U, BastidasUrrutia AM, Brumm H. Traffic noise exposure depresses plasma corticosterone and delays offspring growth in breeding zebra finches. CONSERVATION PHYSIOLOGY 2019; 7:coz056. [PMID: 31620292 PMCID: PMC6788579 DOI: 10.1093/conphys/coz056] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/02/2019] [Accepted: 07/17/2019] [Indexed: 05/21/2023]
Abstract
The impact of human activity on the acoustic environment is overwhelming, with anthropogenic noise reaching even remote areas of the planet. The World Health Organization has identified noise pollution as one of the leading environmental health risks in humans, and it has been linked to a myriad of short- and long-term health effects in exposed individuals. However, less is known about the health effects of anthropogenic noise exposure on animals. We investigated long- and short-term effects of traffic noise on zebra finches breeding in small communal aviaries, using a repeated measures design. Birds bred in both noise and no-noise conditions, and we measured baseline plasma glucocorticoid levels before, during and after breeding. In addition, we assayed immune function, measured reproductive success and offspring growth and compared rates of extra-pair paternity of breeding adults. Breeding birds had significantly lower baseline plasma corticosterone levels when exposed to traffic noise than when they were not exposed to noise playback. In addition, the nestlings reared during noise exposure were lighter than nestlings of the same parents when breeding in control conditions. Our results suggest that traffic noise poses a more severe hurdle to birds at more vulnerable stages of their life history, such as during reproductive events and ontogeny. While chronic exposure to traffic noise in our birds did not, by itself, prove to be a sufficient stressor to cause acute effects on health or reproductive success in exposed individuals, it did result in disruptions to normal glucocorticoid profiles and delayed offspring growth. However, animals living in urban habitats are exposed to a multitude of anthropogenic disturbances, and it is likely that even species that appear to be thriving in noisy environments may suffer cumulative effects of these multiple disturbances that may together impact their fitness in urban environments.
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Affiliation(s)
- Sue Anne Zollinger
- Department of Natural Sciences, Manchester Metropolitan University, John Dalton East, Chester Street, Manchester M1 5GD, UK
- Communication and Social Behaviour Group, Max Planck Institute for Ornithology, EberhardGwinnerStrasse 1, 82319 Seewiesen, Germany
- Corresponding author: Department of Natural Sciences, Manchester Metropolitan University, Manchester M1 5GD, UK.
| | - Adriana Dorado-Correa
- Communication and Social Behaviour Group, Max Planck Institute for Ornithology, EberhardGwinnerStrasse 1, 82319 Seewiesen, Germany
| | - Wolfgang Goymann
- Department of Behavioural Neurobiology, Max Planck Institute for Ornithology, EberhardGwinnerStrasse 1, 82319 Seewiesen, Germany
| | - Wolfgang Forstmeier
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, EberhardGwinnerStrasse 1, 82319 Seewiesen, Germany
| | - Ulrich Knief
- Department of Behavioural Ecology and Evolutionary Genetics, Max Planck Institute for Ornithology, EberhardGwinnerStrasse 1, 82319 Seewiesen, Germany
- Division of Evolutionary Biology, Faculty of Biology, Ludwig Maximilian University of Munich, Grosshaderner Strasse 2, 82152 PlaneggMartinsried, Germany
| | - Ana María BastidasUrrutia
- Biodiversity and Global Change Lab, Terrestrial Ecology Research Group, Technical University of Munich, HansCarlvonCarlowitzPlatz 2, 85354 Freising, Germany
| | - Henrik Brumm
- Communication and Social Behaviour Group, Max Planck Institute for Ornithology, EberhardGwinnerStrasse 1, 82319 Seewiesen, Germany
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Beaugeard E, Brischoux F, Henry P, Parenteau C, Trouvé C, Angelier F. Does urbanization cause stress in wild birds during development? Insights from feather corticosterone levels in juvenile house sparrows ( Passer domesticus). Ecol Evol 2019; 9:640-652. [PMID: 30680144 PMCID: PMC6342122 DOI: 10.1002/ece3.4788] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 10/24/2018] [Accepted: 10/29/2018] [Indexed: 01/22/2023] Open
Abstract
Urban landscapes are associated with abiotic and biotic environmental changes that may result in potential stressors for wild vertebrates. Urban exploiters have physiological, morphological, and behavioral adaptations to live in cities. However, there is increasing evidence that urban exploiters themselves can suffer from urban conditions, especially during specific life-history stages. We looked for a link between the degree of urbanization and the level of developmental stress in an urban exploiter (the house sparrow, Passer domesticus), which has recently been declining in multiple European cities (e.g., London, UK). Specifically, we conducted a large-scale study and sampled juvenile sparrows in 11 urban and rural sites to evaluate their feather corticosterone (CORT) levels. We found that juvenile feather CORT levels were positively correlated with the degree of urbanization, supporting the idea that developing house sparrows may suffer from urban environmental conditions. However, we did not find any correlation between juvenile feather CORT levels and body size, mass, or body condition. This suggests either that the growth and condition of urban sparrows are not impacted by elevated developmental CORT levels, or that urban sparrows may compensate for developmental constraints once they have left the nest. Although feather CORT levels were not correlated with baseline CORT levels, we found that feather CORT levels were slightly and positively correlated with the CORT stress response in juveniles. This suggests that urban developmental conditions may potentially have long-lasting effects on stress physiology and stress sensitivity in this urban exploiter.
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Affiliation(s)
- Erika Beaugeard
- Centre d’Études Biologiques de Chizé (CEBC)UMR 7372 CNRS‐Université de La RochelleVilliers‐en‐BoisFrance
| | - François Brischoux
- Centre d’Études Biologiques de Chizé (CEBC)UMR 7372 CNRS‐Université de La RochelleVilliers‐en‐BoisFrance
| | - Pierre‐Yves Henry
- Centre de Recherches sur la Biologie des Populations d’Oiseaux (CRBPO)CESCO UMR 7204 Sorbonne Universités‐MNHN‐CNRS‐UPMCParisFrance
| | - Charline Parenteau
- Centre d’Études Biologiques de Chizé (CEBC)UMR 7372 CNRS‐Université de La RochelleVilliers‐en‐BoisFrance
| | - Colette Trouvé
- Centre d’Études Biologiques de Chizé (CEBC)UMR 7372 CNRS‐Université de La RochelleVilliers‐en‐BoisFrance
| | - Frédéric Angelier
- Centre d’Études Biologiques de Chizé (CEBC)UMR 7372 CNRS‐Université de La RochelleVilliers‐en‐BoisFrance
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Perrier C, Lozano del Campo A, Szulkin M, Demeyrier V, Gregoire A, Charmantier A. Great tits and the city: Distribution of genomic diversity and gene-environment associations along an urbanization gradient. Evol Appl 2018; 11:593-613. [PMID: 29875805 PMCID: PMC5979639 DOI: 10.1111/eva.12580] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 11/19/2017] [Indexed: 01/02/2023] Open
Abstract
Urbanization is a growing concern challenging the evolutionary potential of wild populations by reducing genetic diversity and imposing new selection regimes affecting many key fitness traits. However, genomic footprints of urbanization have received little attention so far. Using RAD sequencing, we investigated the genomewide effects of urbanization on neutral and adaptive genomic diversity in 140 adult great tits Parus major collected in locations with contrasted urbanization levels (from a natural forest to highly urbanized areas of a city; Montpellier, France). Heterozygosity was slightly lower in the more urbanized sites compared to the more rural ones. Low but significant effect of urbanization on genetic differentiation was found, at the site level but not at the nest level, indicative of the geographic scale of urbanization impact and of the potential for local adaptation despite gene flow. Gene-environment association tests identified numerous SNPs with small association scores to urbanization, distributed across the genome, from which a subset of 97 SNPs explained up to 81% of the variance in urbanization, overall suggesting a polygenic response to selection in the urban environment. These findings open stimulating perspectives for broader applications of high-resolution genomic tools on other cities and larger sample sizes to investigate the consistency of the effects of urbanization on the spatial distribution of genetic diversity and the polygenic nature of gene-urbanization association.
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Affiliation(s)
- Charles Perrier
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
| | - Ana Lozano del Campo
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
| | - Marta Szulkin
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
- Wild Urban Evolution and Ecology LaboratoryCentre of New TechnologiesUniversity of WarsawWarsawPoland
| | - Virginie Demeyrier
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
| | - Arnaud Gregoire
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
| | - Anne Charmantier
- Centre d'Ecologie Fonctionnelle et Evolutive, CEFE UMR 5175, Campus CNRS, Université de MontpellierMontpellier Cedex 5France
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Angelier F, Costantini D, Blévin P, Chastel O. Do glucocorticoids mediate the link between environmental conditions and telomere dynamics in wild vertebrates? A review. Gen Comp Endocrinol 2018; 256:99-111. [PMID: 28705731 DOI: 10.1016/j.ygcen.2017.07.007] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 06/06/2017] [Accepted: 07/06/2017] [Indexed: 12/17/2022]
Abstract
Following the discoveries of telomeres and of their implications in terms of health and ageing, there has been a growing interest into the study of telomere dynamics in wild vertebrates. Telomeres are repeated sequences of non-coding DNA located at the terminal ends of chromosomes and they play a major role in maintaining chromosome stability. Importantly, telomeres shorten over time and shorter telomeres seem to be related with lower survival in vertebrates. Because of this potential link with longevity, it is crucial to understand not only the ecological determinants of telomere dynamics but also the regulatory endocrine mechanisms that may mediate the effect of the environment on telomeres. In this paper, we review the relationships that link environmental conditions, glucocorticoids (GC, the main hormonal mediator of allostasis) and telomere length in vertebrates. First, we review current knowledge about the determinants of inter-individual variations in telomere length. We emphasize the potential strong impact of environmental stressors and predictable life-history events on telomere dynamics. Despite recent progress, we still lack crucial basic data to fully understand the costs of several life-history stages and biotic and abiotic factors on telomere length. Second, we review the link that exists between GCs, oxidative stress and telomere dynamics in vertebrates. Although circulating GC levels may be closely and functionally linked with telomere dynamics, data are still scarce and somewhat contradictory. Further laboratory and field studies are therefore needed not only to better assess the proximate link between GC levels and telomere dynamics, but also to ultimately understand to what extent GCs and telomere length could be informative to measure the fitness costs of specific life-history stages and environmental conditions. Finally, we highlight the importance of exploring the functional links that may exist between coping styles, the GC stress response, and telomere dynamics in a life-history framework. To conclude, we raise new hypotheses regarding the potential of the GC stress response to drive the trade-off between immediate survival and telomere protection.
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Affiliation(s)
- Frédéric Angelier
- Centre d'Etudes Biologiques de Chizé, CNRS-ULR, UMR 7372, Villiers en Bois, France.
| | - David Costantini
- Muséum National d'Histoire Naturelle, UMR 7221, Paris, France; Behavioural Ecology & Ecophysiology Group, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Pierre Blévin
- Centre d'Etudes Biologiques de Chizé, CNRS-ULR, UMR 7372, Villiers en Bois, France
| | - Olivier Chastel
- Centre d'Etudes Biologiques de Chizé, CNRS-ULR, UMR 7372, Villiers en Bois, France
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Schell CJ. Urban Evolutionary Ecology and the Potential Benefits of Implementing Genomics. J Hered 2018; 109:138-151. [DOI: 10.1093/jhered/esy001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 01/06/2018] [Indexed: 01/01/2023] Open
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Senar JC, Garamszegi LZ, Tilgar V, Biard C, Moreno-Rueda G, Salmón P, Rivas JM, Sprau P, Dingemanse NJ, Charmantier A, Demeyrier V, Navalpotro H, Isaksson C. Urban Great Tits (Parus major) Show Higher Distress Calling and Pecking Rates than Rural Birds across Europe. Front Ecol Evol 2017. [DOI: 10.3389/fevo.2017.00163] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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