Urban Fauna Research Articles

Bluer in the city: urban male lizards exhibit more intense sexual coloration and lower parasite loads than non-urban males.

Urbanization is a global phenomenon that involves the transformation of natural areas into urban spaces, thereby subjecting organisms to new selective pressures including a wide variety of pollutants and changes in intra- and interspecific interactions. Considering that projections indicate that by the year 2050, 65% of the human population will live in urban areas and that urbanization is a phenomenon with an upward pattern, identifying these phenotypic traits is vital to implementing conservation and management plans for urban fauna. The urban environment may exert different selective pressures on sexually selected traits than more pristine environments, a phenomenon which has been well studied in birds but is less understood in other vertebrates such as lizards, although they are common inhabitants of urban environments. Here, we compare sexual coloration, parasite load, and immune response in Sceloporus torquatus lizards in urban and non-urban environments of Central Mexico. Our study shows that sexual coloration is more saturated (bluer) in male lizards from urban environments, while UV chroma was higher in non-urban lizards. The average parasite load is lower in urban lizards than in non-urban lizards, and we found a negative relationship between hemoparasite count and sexual coloration in male lizards from non-urban environments but not in male lizards from urban environments. Additionally, non-urban lizards exhibited a higher immune response. In female lizards, sexual coloration differed significantly between urban and non-urban environments, but parasite load and immune response did not differ. These results may be useful to improve herpetofauna conservation plans in urbanized environments.

Zoonotic potential of urban wildlife faeces, assessed through metabarcoding

Monitoring zoonoses in urban environments is of great relevance, where the incidence of certain pathogens may be higher and where population density makes the spread of any contagious disease more likely. In this study we applied a metabarcoding approach to study potentially zoonotic pathogens in faecal samples of 9 urban vertebrate species. We applied this methodology with two objectives. Firstly, to obtain information on potential pathogens present in the urban fauna of a large European city (Madrid, Spain) and to determine which are their main reservoirs. In addition, we tested for differences in the prevalence of these potential pathogens between urban and rural European rabbits, used as ubiquitous species. Additionally, based on the results obtained, we evaluated the effectiveness of metabarcoding as a tool for monitoring potential pathogen. Our results revealed the presence of potentially zoonotic bacterial genera in all studied host species, 10 of these genera with zoonotic species of mandatory monitoring in the European Union. Based on these results, urban birds (especially house sparrows and pigeons) and bats are the species posing the greatest potential risk, with Campylobacter and Listeria genera in birds and of Chlamydia and Vibrio cholerae in bats as most relevant pathogens. This information highlights the risk associated with fresh faeces from urban wildlife. In addition, we detected Campylobacter in >50 % of the urban rabbit samples, while we only detected it in 11 % of the rural rabbit samples. We found that urban rabbits have a higher prevalence of some pathogens relative to rural rabbits, which could indicate increased risk of pathogen transmission to humans. Finally, our results showed that metabarcoding can be an useful tool to quickly obtain a first screening of potentially zoonotic organisms, necessary information to target the monitoring efforts on the most relevant pathogens and host species.

Lion City Zoopolis: Urban Crittizenship in Biophilic Singapore

ABSTRACT A central theme of Singapore’s “City in Nature” vision is framed through biophilic urbanism, or efforts to harmonize biodiversity and urban development through built, social, and political design. The central discourses of Singapore’s biophilic urbanism have revolved around flora-centric paradigms, including habitat conservation, greening spaces, and access to natural capital. This paper detours from conventions of Singapore’s urban ecological futures and instead explores the governance of fauna co-existence in the city–state through the concept of “urban crittizenship.” Defined as a more-than-human denization framework that interrogates urban wildlife governance, urban crittizenship interrogates the politics of urban wildlife’s rights to the city. Drawing on interviews, publicly accessible data, and ethnographic findings with local governing actors and activists, I show that Singapore’s experience of urban fauna governance is framed through three categories (“resident,” “wildlife,” and “pest”) and that they inform how state and society mediate and manage coexistence with urban wildlife. These experiences are examined through the examples of otters, boars, and pigeons, respectively. In doing so, I present urban crittizenship as an inductive model of analyzing urban wildlife coexistence as primarily secured through infrastructural and political regime configurations that inform their crittizenship statuses. Any real shifts toward new forms of coexistence must therefore begin with actual transformations in these areas. I further iterate that using an urban crittizenship framework refines our understanding and application of biophilic urbanism as socio-political processes that influence already-existing urban wildlife coexistence, complementing existing analyses in urban ecology. In other words, there is a politics of biophilia that warrants a conversation, because biophilia is political.

Effects of human disturbance on detectability of non-breeding birds in urban green areas

Animals adapted to disturbed habitats have evolved multiple behavioural strategies, spanning from hiding to displacing to less disturbed microhabitats. Urban areas pose new evolutionary challenges since animals often need to deal with novel environmental conditions. In this context, urban parks may constitute biodiversity hotspots within the concrete jungle. Nonetheless, the recent increase in recreational activities in urban parks potentially puzzles the ability of urban-dwelling animals to exploit these environments. In this study, we evaluated the effect of human disturbance and other contextual variables on the activity patterns of four bird species commonly found in European urban parks, covering a wide range of ecological characteristics: the blackbird (Turdus merula), the hooded crow (Corvus cornix), the Eurasian robin (Erithacus rubecula), and the wood pigeon (Columba palumbus). We performed repeated counts of these bird species in six urban parks in northern Italy and we fitted Bayesian N-mixture models to estimate the relationship between detection probability and human disturbance (number of people present in the park), phenology (date and time of the day), and weather conditions (temperature and precipitation). For all the species but the blackbird, we found a negative relationship between the number of people present in the park and the detection probability of the focal species. We also found species-specific effects of both phenology and weather conditions on the detection probability. Our results suggest that urban dwelling species can finely modulate their activity patterns in response to the level of human disturbance, suggesting a possible key role of behavioural phenotypic plasticity. Furthermore, uncovering patterns of detectability of urban fauna can help in planning biodiversity monitoring and conservation, as it provides useful information to carry out surveys when the probability of detecting individuals is highest, optimising resource investments and reliability of biodiversity estimates.

Exploring human appreciation and perception of spontaneous urban fauna in Paris, France

City-dwellers are often confronted with the presence of many spontaneous animal species which they either like or dislike. Using a questionnaire, we assessed the appreciation and perception of the pigeon (Columba livia), the rat (Rattus norvegicus), and the hedgehog (Erinaceus europaeus) by people in parks, train stations, tourist sites, community gardens, and cemeteries in Paris, France. Two hundred individuals were interviewed between May 2017 and March 2018. While factors such as age, gender, level of education or place or location of the survey did not appear to be decisive in analyzing the differential appreciation of these species by individuals, there was a clear difference in appreciation based on the species and the perceived usefulness of the animal, which is often poorly understood. The rat was disliked (with an average appreciation score of 2.2/10), and the hedgehog was liked (with an average appreciation score of 7.7/10). The case of the pigeon is more complex, with some people loving or hating it, and many others being indifferent (with an average appreciation score of 4.7/10). The most common descriptor associated with pigeons and rats is the word "dirty", while for for hedgehogs it is "cute". Like Driscoll (1995) who found a positive correlation between perceived usefulness an appreciation given to the species, we assume that providing information to the citizens about the ecosystem services provided by unappreciated urban species could improve their perception of these animals, thus enabling better coexistence.

Challenges in the legal protection of urban fauna in modern environments

Challenges in the legal protection of urban fauna in modern environments

A 12-Year Experimental Design to Test the Recovery of Butterfly Biodiversity in an Urban Ecosystem: Lessons from the Parc Urbain des Papillons.

Urbanization is one of the main threats to biodiversity. However, some urban green spaces could act as refuges for urban fauna if the composition of the flora were less horticultural and if a less intensive management strategy is adopted. Among the taxa, butterflies are experiencing a strong decline from European to regional scales. An ecological engineering project based on a plantation of host and nectariferous plants backed up by a well thought out management strategy was carried out in Marseille at the Parc Urbain des Papillons (the Butterflies Urban Park). We assessed its effectiveness by comparing the butterfly communities in this park before and after the engineering work, and we compared it to a neighboring wasteland with natural habitats. After 12 years of the project, the results show a significant change in the species composition. The species richness greatly increased from 25 to 42 species. Some specialist species we targeted appeared, and their numbers increased from one to five. However, three Mediterranean species are still absent compared to the wasteland with natural habitats. As the plant palette used and the management strategy implemented enabled us to significantly increase the number of species, we now plan to work on the structure of the vegetation.

THE FIRST RECORD OF CEPAEA NEMORALIS (LINNAEUS, 1758) (MOLLUSCA: GASTROPODA: HELICIDAE) IN THE DONBASS AND THE PHENETIC STRUCTURE OF THE FOUND COLONY

The phenetic composition of Cepaea nemoralis (Linnaeus, 1758) (Mollusca: Gastropoda: Helicidae) colony found in an area of continuous high-rise buildings in the center of Donetsk in 2022 is described. The area of the colony is 2.5 ha, the number reaches 15 ind./m2, the age is at least 10 years. Individuals with a pink ground colours (81.5%) and one central band in 64.7% of yellow-coloured and 76.8% of pink-coloured shells are clearly dominated. The absence of unbanded shells and shells with reduced 1, 2, 4 and 5 bands was a distinctive feature of the Donetsk colony. The trend of dominance of phenotypes with fused bands is traced for five-banded shells with the relative frequency of 69.7%. Morphs with fusion types of bands, namely F(45) - 13.2% and F(23) - 12.8% dominate. The colony is characterized by a relatively high degree of polymorphism (𝜇 = 4.78±0.039) and proportion of rare morphs (h±𝑆ℎ = 0.47±0.026) showing no similarities with the colonies in Eastern Europe available for meta-analysis. Cepaea nemoralis is likely to remain one of the elements in the urban fauna, not showing any tendency to expand into natural ecosystems.

Do Urban Hedgehogs (Erinaceus europaeus) Represent a Relevant Source of Zoonotic Diseases?

Urban fauna is defined as animal species that can live in urban environments. Several species, including the western-European hedgehog (Erinaceus europaeus), have now been identified as part of this urban fauna, becoming permanent residents of parks and gardens in different cities across Europe. Due to the importance that this phenomenon represents for zoonotic disease surveillance, several authors have been conducting zoonotic agents' surveys on hedgehog. The aim of this study is to compare zoonotic diseases' prevalence in hedgehogs in urban environments with those from more rural areas. A systematic review with meta-analysis of twelve studied of zoonotic diseases' (in urban and rural areas of Europe) was therefore conducted for this purpose. Fifteen different zoonoses have been assessed in urban environments and six in rural areas. Anaplasma phagocytophilum was the most prevalent zoonotic agent found in urban habitats (96%). Dermatophytosis shows statistically significant differences between locations (p-value < 0.001), with a higher prevalence in urban Poland (55%; n = 182). Our results suggest further research and a standardized monitoring of different hedgehog populations are essential to understanding the epidemiology of several zoonotic pathogens in different habitat types (urban, rural, natural, industrial, etc.) and preventing possible disease outbreaks.

THE GREEN LINE | A biodiversity corridor along the past and present Athens railway network

The Green Line concerns the study of the introduction of an urban green route in proximity to the railway network of TRAINOSE in the greater area of Athens, Greece. The active and inactive railway network that runs through Athens has posed a challenge to good management, due to the empty spaces and derelict facilities it leaves behind as well as the urban fragmentation it causes. At the same time, Athens, in the midst of the global climate crisis, is in need of a long overdue introduction of urban green, in order to enhance the city’s resilience to extreme weather conditions and threats to biodiversity, especially to the urban and peri-urban fauna. The main motivation of all interventions is the introduction, mobility and enhancement of urban biodiversity. The means to achieve this is both the selection of ecologically valuable plant species able to attract and host important pollinator species and other urban fauna, and their interaction with humans. This interaction is examined in separate cases, depending on the urban and social conditions of each location, and incorporates urban farming (communal gardens, orchards, meeting and education points), urban beekeeping and pollinator care (urban beehives, bee and butterfly beds, bee hotels). These interventions are found along and in the vicinity of the railway network of TRAINOSE, which is divided into typologies and takes the form of individual design case studies. In its current state, this area bisects the city, creates problem areas and runs through densely populated areas with low incomes and a significantly low amount of green spaces, while, the conversions the railway network has undergone in recent decades leave behind areas ready to receive new uses. Most importantly, it can create a functional and practical green route that starts, passes through and ends at key points in the city.

Biodiversity based solutions for the support of ecosystem services, provided by urban green infrastructure

Compact living of the population in the territory of modern cities on the one hand increases requirements for the quality of environmental conditions, and on the other hand creates an excessive load on the city ecosystem. Green spaces are the main providers of ecosystem services in cities, as urban fauna represented by a very limited number of species. The quality and range of ecosystems of their services, which provided by natural plant associations and urban green spaces, is significantly different and affected by human activity. The assessment of the quality of provision of ecosystem services by the parks of the left bank of the city was carried out Kyiv. At the first stage of the work, an assessment of the potential of service provision was carried out according to 10 criteria. At the second stage, the ratio between cultural and regulatory ecosystem services provided by the parks was performed using pair-wise weighted evaluation. The assessment results show that large, little-altered forest parks provide the highest degree of services, in which regulatory services dominate over recreational ones. Along with this, small lakes ecosystems under the condition of limited recreational improvement and use can also provide more services of a regulatory nature. Traditionally, the main means of ensuring the ecosystems services and adaptation of cities to the conditions of a changing climate are nature-based solutions. Given the scarcity of free space, such solutions include a number of conceptually new approaches that provide maximum involvement of spatial resources of the city, in particular walls and roofs. Such decisions are important and effective, but technical aspects may delay their implementation. Under such conditions it is proposed to pay attention to biodiversity-based solutions, i.e. increasing species richness in already existing facilities to improve the quality of the provided services in general and increase the weight of regulatory services. The attention should be paid to increasing the diversity of species and communities. The increase in species diversity can be implemented in planned manner maintenance of existing plantations taking into account not only the tolerance of the selected species, but also in accordance with their functional role. This will contribute to the expansion of ecological niches of plantations and natural processes of diversification.

Urban green roofs promote metropolitan biodiversity: A comparative case study

Urban green spaces can provide habitat and resources for urban dwelling fauna. Suburban green spaces occur most commonly as parks and roadside vegetation, but as human populations grow and space in cities becomes increasingly limited, space-efficient green solutions like green roofs and walls in metropolitan areas are becoming increasingly common. However, the efficacy of these forms of green infrastructure in attracting and promoting biodiversity remains limited. To address this, we compared arthropod, gastropod, and avian species richness and diversity between green and conventional roofs on neighbouring and identical buildings in metropolitan Sydney, Australia. By monitoring local biodiversity using motion sensing camera traps and regular insect surveys, we found that the green roof supported four times the avian, over seven times the arthropod, and twice the gastropod diversity of the conventional roof. Only the green roof attracted locally rare species including blue banded bees (Amegilla Cingulata) and metallic shield bugs (Scutiphora pedicellata). Our results suggest that green roofs, like other urban green spaces, can have ecological significance by attracting and supporting urban fauna that may then add important functional capacities to previously depauperate spaces. This study demonstrates the potential for the widespread adoption of green roofs to create more biologically diverse cities.

Checklist of butterflies (Lepidoptera: Papilionoidea) of an urban area of Caatinga-Atlantic Forest ecotone in Bahia, Brazil

The butterfly inventories carried out in urban landscapes in Bahia are still scarce. Urban areas with remnants of native vegetation in association with ornamental plants can provide several resources that are favorable for the development and shelter of various animal species, including insects, even with the high anthropization that occurs in these environments. In this work, we aim to investigate the urban fauna of butterflies at the Campus of the Universidade Estadual de Feira de Santana (UEFS), an area of ​​Caatinga-Atlantic Forest ecotone located in the municipality of Feira de Santana, Bahia, Brazil. Monthly samplings were carried out with entomological net and standardized traps with different attractive baits, between May 2019 and January 2020, in addition to review of the material previously deposited at the Entomological Collection Prof. Johan Becker located at the Zoology Museum of the UEFS (MZFS). In total, 114 species of Papilionoidea were recorded, with Nymphalidae being the richest family (45 species), followed by Hesperiidae (32), Lycaenidae (21), Pieridae (10), Papilionidae (3) and Riodinidae (3). Thirteen species are new records for Bahia and eight species are new records for Northeast Brazil. The results demonstrate the extreme relevance of the conservation and preservation of urban green areas for the maintenance of butterflies species and, consequently, the associated insect fauna.

Habitat patch size and tree species richness shape the bird community in urban green spaces of rapidly urbanizing Himalayan foothill region of India

Rapid urbanization is emerging as one of the leading threats to the biodiversity globally. But is especially a cause of concern for tropical countries which are urbanizing much faster and with relatively less urban planning than temperate ones. Urban green spaces are established to reduce the negative impacts of urbanization by conserving a large suite of species. Yet our knowledge on the significance of urban green spaces for supporting urban fauna and enhancing species richness is lacking for tropical countries such as India. We examined how landscape and local scale features of urban green spaces influence bird species richness, density, fine-foraging guild richness and composition during breeding and non-breeding season in Dehradun, India. We quantified landscape level variables in the 250 m buffer around 18 urban green spaces. We sampled vegetation and bird community during breeding and non-breeding season through 52 intensive sampling point spread across 18 urban green spaces. Size of the urban green space at landscape level and tree species richness at the local scale emerged as important predictors influencing bird species richness, density and richness of imperilled insectivorous guild across seasons. Urban green spaces within education institutions and offices experiencing less vegetation management supported higher bird species richness and density whereas city parks were species poor. Community composition was affected more strongly by built-up cover and barren area in the landscape matrix and also by tree species richness at the local scale within urban green spaces. City planners should focus on allocating green spaces within urban settings and expand the formal green spaces. Existing green spaces could be improved by augmenting compositional and structural heterogeneity of vegetation as well as conservation of large old native trees.

Urban mammal fauna under conditions of a large city (on the example of Ulyanovsk, Middle Volga Region)

In this work, the topographic features of the spatial pattern of biodiversity of the urban fauna in general in the city are revealed: the number of urban fauna species has a maximum in the southern part of the city and a minimum in the western part. The mammal fauna as a component of urban fauna in general exhibits greater plasticity and adaptability in relation to humans compared to other groups of biota, for example, the insect fauna and avifauna. The urban mammal fauna in Ulyanovsk has historically formed due to the penetration of representatives of various faunal complexes that inhabit the region into the city area and its vicinities: (1) floodplain species associated with the river Sviyaga and its tributaries, 36.17%; (2) forest species living in pine-deciduous, deciduous-pine, and taiga forests, 46.81%; (3) upland-steppe species associated with Cretaceous landscapes of the right bank, 6.38%; (4) steppe species, including mammals of the left bank, common for the native feather grass–fescue steppes, 6.38%. Some animal species have remained in the city and in the region due to their spread by humans—introduced species and species kept in fur farms (10.64%). Synanthropic species are associated with human settlements (4.26%). The occurrence of species in different zones of the city (right bank and left bank) and habitats with an increase in the level of urbanization and a decrease in species diversity (1–5) are as follows: (1) green zones—parks and squares with woody vegetation, 31 species; (2) floodplain of the river Sviyaga within the city, 24 species; (3) summer cottages within the city, 15 species; (4) private sector with one-storey buildings, 5 species; (5) multi-storey buildings, 4 species. In general, in an urban environment, mammal species that coexist with humans make up 66.19 % of the total number of mammal species in the region. At the same time, the number of rare mammal species listed in the regional Red Book is 12.68%. Thus, when conservation measures for the protection of animal habitats within the urban environment are observed, most species are able to maintain stable populations.

POTENTIAL OPPORTUNITIES OF KAZAKHSTAN IN THE FIELD OF TOURISM

This article examines the potential opportunities of Kazakhstan in the field of tourism. The paper notes the favorable geopolitical position of the country, political stability, the presence of historical architectural and urban complexes, natural landshaves, flora and fauna.

Description of Echolocation Call Parameters for Urban Bats in Vietnam as a Step Towards a More Integrated Acoustic Monitoring of Urban Wildlife in Southeast Asia

This study is the first step towards more systematic monitoring of urban bat fauna in Vietnam and other Southeast Asian countries by collecting bat echolocation call parameters in Ho Chi Minh and Tra Vinh cities. We captured urban bats and then recorded echolocation calls after releasing in a tent. Additional bat’s echolocation calls from the free-flying bats were recorded at the site where we captured bat. We used the obtained echolocation call parameters for a discriminant function analysis to test the accuracy of classifying these species based on their echolocation call parameters. Data from this pilot work revealed a low level of diversity for the studied bat assemblages. Additionally, the discriminant function analysis successfully classified bats to four bat species with an accuracy of &gt;87.4%. On average, species assignments were correct for all calls from Taphozous melanopogon (100% success rate), for 70% of calls from Pipistrellus javanicus, for 80.8% of calls from Myotis hasseltii and 67.3% of calls from Scotophilus kuhlii. Our study comprises the first quantitative description of echolocation call parameters for urban bats of Vietnam. The success in classifying urban bats based on their echolocation call parameters provides a promising baseline for monitoring the effect of urbanization on bat assemblages in Vietnam and potentially also other Southeast Asian countries.

Changes of avifauna in green areas of Almaty City in the beginning of 21st century

Currently, there are serious changes in the environment in Almaty due to the accentuated urbanization processes. The avifauna of the city is experiencing serious stress pressure in this regard, which forces the animals to adapt to new conditions or leave this territory. The last fundamental research on the species composition of the city's fauna was conducted about 3 decades ago. The analysis of information on the birds of Almaty, collected by specialists of the Institute of Zoology over the past 50 years, showed significant changes in the avifauna. 5 categories of bird species were identified: 1) species that have disappeared from the urban fauna, 2) species whose numbers have declined significantly, 3) species that have a tendency to decline in numbers, 4) species whose numbers are stable or have increased, 5) species that are settling.

Prototipo móvil para la geolocalización de mascotas callejeras

En Ecuador existen fundaciones que se encargan de velar por los derechos de los animales, además de la promoción sobre la tenencia responsable de mascotas; sin embargo, esto no es suficiente, ya que estas organizaciones se auto sustentan y muchas veces no dan abasto con los animales que tienen a cargo. Con la creación de la ordenanza 048 se establecieron penalizaciones para controlar el problema de fauna urbana, tomando en consideración aquellos actos que ponen en riesgo la vida de los animales, y que a su vez afectan la sociedad. Con el uso de las tecnologías esta problemática se ha hecho mucho más evidente en las redes sociales, por lo que el presente trabajo propone la creación de una aplicación móvil que permita en tiempo real identificar y ubicar perros callejeros en diferentes sectores de la ciudad de Quito, para que los organismos encargados puedan tener un registro actualizado. Esta app funcionaria mediante la georreferenciación por medio del uso de un sensor de geolocalización, obteniendo latitud y longitud que permita alimentar la base de datos.

Earthworm assemblages in urban habitats across biogeographical regions

In urban landscapes, humans are the most significant factor determining belowground diversity, including earthworms. Within the framework of the Global Urban Soil Ecology and Education Network (GLUSEEN), a multi-city comparison was carried out to assess the effects of soil disturbance on earthworms. In each of five cities (Baltimore, USA; Budapest, Hungary; Helsinki and Lahti, Finland; Potchefstroom, South Africa), covering four climatic and biogeographical regions, four habitat types (ruderal, turf/lawn, remnant and reference) were sampled. The survey resulted in 19 species belonging to 9 genera and 4 families. The highest total species richness was recorded in Baltimore (16), while Budapest and the Finnish cities had relatively low (5–6) species numbers. Remnant forests and lawns supported the highest earthworm biomass. Soil properties (i.e. pH and organic matter content) explained neither earthworm community composition nor abundance. Evaluating all cities together, earthworm communities were significantly structured by habitat type. Communities in the two adjacent cities, Helsinki and Lahti were very similar, but Budapest clearly separated from the Finnish cities. Earthworm community structure in Baltimore overlapped with that of the other cities. Despite differences in climate, soils and biogeography among the cities, earthworm communities were highly similar within the urban habitat types. This indicates that human-mediated dispersal is an important factor shaping the urban fauna, both at local and regional scales.