Artificial Light at Night (ALAN) Is the Main Driver of Nocturnal Feral Pigeon (Columba livia f. domestica) Foraging in Urban Areas

Leveau, Lucas M.

doi:10.3390/ani10040554

Cited by 17 publications

(8 citation statements)

References 38 publications

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“…This could be the result of change in rhythmicity and allocation of energy expenditure throughout the day (Figure 2). Artificial light at night have shown to affect the foraging behavior in urban areas in feral pigeons as they extend the feeding and activity behavior after sunset [41]. The presence of light at night was the only variable changed between LD and dLAN groups, and effects on activity and feeding behavior and clock gene expression has been observed under constant light and dim light at night conditions in zebra finches [17,21].…”

Section: Discussionmentioning

confidence: 98%

Effects of Night Illumination on Behavior, Body Mass and Learning in Male Zebra Finches

Prabhat

Kumar

et al. 2021

Birds

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An increase in artificial night lighting has blurred the boundaries of day and night and transformed the natural day-night environment with alteration in the temporal niche of the animals. Male zebra finches were exposed to a dim light at night (dLAN) protocol (Light: dLAN, 12L = 200 lux: 12dLAN = 5 lux) with controls on darkness at night (Light: dark, 12L = 200 lux: 12D = 0 lux) for six weeks. We assayed sleep-wake, daily behaviors, mood, and cognition, as well as changes in physiological parameters. Dim light at night increased sleep frequency, delayed sleep onset, advanced awakening latency, and caused a reduction in total sleep duration. dLAN birds did not associate (physical association) with novel object and birds spent significantly lesser time on perch with novel object as compared to LD. In colour learning task, night illuminated birds took more time to learn and made more error, compared to LD. dLAN significantly altered the 24-h daily behavioral rhythm (amplitude and acrophase) of feeding, drinking, preening, and perch-hopping behavior. In particular, birds extended their feeding hours in the nighttime under dLAN, with no difference in total food intake. Birds under dLAN increased fattening and hence significantly increased body mass. Our results show that dim light at night altered feeding rhythm, caused decrease in sleep behavior, and negatively affected learning and memory performance in male zebra finches.

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Section: Discussionmentioning

confidence: 98%

Effects of Night Illumination on Behavior, Body Mass and Learning in Male Zebra Finches

Prabhat

Kumar

et al. 2021

Birds

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“…For example, the sample size of the selected urban parks (n = 9) was quite small, the study was conducted only during a single winter and only in one city. Additionally, some other factors, such as noise level [ 77 ], artificial light [ 78 ], recreational activities [ 63 ], other guilds of birds [ 79 ], and vegetation habitats [ 80 ], may influence winter bird assemblage structure in urban parks.…”

Section: Discussionmentioning

confidence: 99%

Effects of Landscape Features on Bird Community in Winter Urban Parks

Huang

Zheng

Yan

et al. 2022

Animals

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Urban parks, as critical components of the urban green space, have practical significance in studying the influence of landscape characteristics on birds. Nine urban parks in Fuzhou, China, were used as study objects to explore the influence of landscape features (patch, landscape, and surrounding environment indices) on bird communities. The results showed that (1) from December 2021 to February 2022, we found a total of 2874 individuals belonging to 61 species of 9 orders, 32 families, which were dominated by the birds of Passeriformes (37 species of 24 families, accounting for 89.91% of the total number of individuals) and resident birds in Fuzhou urban parks (n = 30; 85.46%); (2) The park area, park perimeter, woodland area, grassland area, and the park shape index increased as the distance to the city center increases; (3) Bird diversity responds differently to different landscape features. The total abundance of birds, the abundance of winter migrant birds, and the richness of winter migrant birds increased with the park area. And the park shape index affects positively for the the α-diversity of birds and the abundance of resident birds. Woodland proportion and waterbody shape index affected positively on the richness and α-diversity of resident birds. To promote the diversity of regional birds, it is recommended that the construction and planning of urban parks should enlarge the park area as much as possible, increase the proportion of woodland, and make shorelines more irregular. Our study could serve as a reference for the construction of biodiversity enhancements in core green areas of urban parks.

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“…Nevertheless, Ciach and Frohlich (2017) also pointed out that food availability during winter is probably the primary factor explaining corvid densities in urban areas [ 112 ]. It is plausible that artificial lights in cities may increase the time that the corvids can spend foraging, as has been observed in the case of urban pigeons [ 113 ].…”

Section: Discussionmentioning

confidence: 99%

Corvids in Urban Environments: A Systematic Global Literature Review

Benmazouz

Jokimäki

Lengyel

et al. 2021

Animals

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Urbanization is one of the most prevalent drivers of biodiversity loss, yet few taxonomic groups are remarkably successful at adapting to urban environments. We systematically surveyed the global literature on the effects of urbanization on species of family Corvidae (crows, choughs, jackdaws, jays, magpies, nutcrackers, ravens, rooks, treepies) to assess the occurrence of corvids in urban environments and the factors affecting their success. We found a total of 424 primary research articles, and the number of articles has increased exponentially since the 1970s. Most studies were carried out in cities of Europe and North America (45.5% and 31.4%, respectively) and were directed on a single species (75.2). We found that 30 corvid species (23% of 133 total) regularly occur in urban environments. The majority (72%) of the studies reported positive effects of urbanization on corvids, with 85% of studies detecting population increases and 64% of studies detecting higher breeding success with urbanization. Of the factors proposed to explain corvids’ success (availability of nesting sites and food sources, low predation and persecution), food availability coupled with diet shifts emerged as the most important factors promoting Corvidae to live in urban settings. The breeding of corvids in urban environments was further associated with earlier nesting, similar or larger clutches, lower hatching but higher fledging success, reduced home range size and limited territoriality, increased tolerance towards humans and increasing frequency of conflicts with humans. Despite geographic and taxonomic biases in our literature sample, our review indicates that corvids show both flexibility in resource use and behavioral plasticity that enable them to exploit novel resources for nesting and feeding. Corvids can thus be urban exploiters of the large-scale modifications of ecosystems caused by urbanization.

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Artificial Light at Night (ALAN) Is the Main Driver of Nocturnal Feral Pigeon (Columba livia f. domestica) Foraging in Urban Areas

Cited by 17 publications

References 38 publications

Effects of Night Illumination on Behavior, Body Mass and Learning in Male Zebra Finches

Effects of Night Illumination on Behavior, Body Mass and Learning in Male Zebra Finches

Effects of Landscape Features on Bird Community in Winter Urban Parks

Corvids in Urban Environments: A Systematic Global Literature Review

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