Behavioral responses of urban birds to human disturbance in urban parks at Curitiba, Paraná (Brazil)

Prestes, Thays Verônica; Manica, Lilian Tonelli; Guaraldo, André Camargo de

doi:10.1007/bf03544418

Cited by 7 publications

(10 citation statements)

References 24 publications

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“…Advantages may also be associated with some specific factors, artificial night light influences reproductive physiology (Dominoni et al 2013(Dominoni et al , 2020 and breeding timing (de Jong et al 2015, Dominoni andNelson 2018), which can increase reproductive output and thus, lead to reduced risk in species able to persist in modified habitats (Dominoni 2017). Similarly, areas with higher population densities could provide habitat and food resources for many species (Chace and Walsh 2006, Seress and Liker 2015, Prestes et al 2018. Overall, it is likely some species will benefit from human activities, and future work on different groups and areas will be needed to better understand how urbanization will affect neotropical birds.…”

Section: Discussionmentioning

confidence: 99%

Threatened neotropical birds are big, ecologically specialized, and found in less humanized refuge areas

Soto-Saravia¹,

Garrido-Cayul²,

Avaria‐Llautureo³

et al. 2021

ACE

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Section: Discussionmentioning

confidence: 99%

Threatened neotropical birds are big, ecologically specialized, and found in less humanized refuge areas

Soto-Saravia¹,

Garrido-Cayul²,

Avaria‐Llautureo³

et al. 2021

ACE

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“…Fontana et al 2011). Birds from a southern population of this species did not change their foraging rate (pecking rate) in response to human approach but became alert when foraging on the ground and escaped more quickly in response to human approach in the context of decreasing human density (Prestes et al 2018). Human activity therefore seems to be associated with escape behaviour but is weakly associated with territorial sentinel behaviour or foraging rate and effort in this species.…”

Section: Sentinel and Foraging Behavioursmentioning

confidence: 90%

Urban cycles of human activity do not significantly alter the behaviour of a duetting bird

Diniz

Silva-Jr

Macêdo

2021

Ibis

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The weekend effect hypothesis predicts that weekly cycles of human activity impact animal behaviour and physiology. This hypothesis has been supported in the context of recreational activity in natural environments but it is unknown whether it also applies to urban animals. We tested this hypothesis by comparing the sentinel (territorial vigilance), foraging and vocal behaviours of an urban-dwelling bird, the Rufous Hornero Furnarius rufus, between weekdays and weekends (and holidays) within a university campus in central Brazil. The level of human activity (noise, traffic and pedestrian flow) increases greatly on weekdays on this campus. We predicted that the birds would perceive a greater predation risk and would need to adjust their acoustic signals in response to anthropogenic noise on weekdays. Thus, we expected that the birds would spend more time as sentinels and less time foraging, and would sing for longer periods and at a higher pitch on weekdays than on weekends. We also expected weaker duet responsiveness (answering partner-initiated song) on noisier weekdays than on weekends, assuming that noise would disrupt signal transmission between partners. We found that birds spent slightly more time (~4%) in sentinel behaviour and less time (~2-5%) foraging on weekdays than on weekends, but these effects were small and not statistically significant. Birds were equally likely to sing solos, start duets and answer partner-initiated duets on weekends and weekdays. Finally, phrase duration and acoustic parameters of duets were similar on weekends and weekdays. Our results provide little support for the weekend effect hypothesis, suggesting that these urban-dwelling birds may be habituated or indifferent to periodic variation in human activity levels.

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“…Whatever the sex of the playing bird, however, play with objects by the Australasian Darter is herein described and substantiated with photographs. The apparent rarity of object play in Anhingidae, including the Australian Darter, deserves a closer look and further natural history-oriented studies, especially at urban sites that would potentially constrain some behaviour types and increase alert and flight distances (Mikula 2014, Prestes et al 2018. l l…”

Section: Ke K K Y-w E E or W W Dsmentioning

confidence: 99%

Playful waterbird: Australasian Darter (Anhinga novaehollandiae) plays with sticks

Sazima

2019

Rev. Bras. Ornitol.

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Play with objects by birds is recorded usually for nestlings and juveniles. This behaviour is regarded as important for motor development and practice of essential skills, mostly foraging and breeding. Play is recorded for the Anhinga (Anhinga anhinga) in North America. For the remaining three recognised species play with objects seems unreported. Herein I present events of play with objects by a maturing individual of the Australasian Darter (Anhinga novaehollandiae) recorded at the urban area of Sydney, southeastern Australia. In one of the play events, the darter played with a stick it broke from a partly submerged tree it was resting on. In another event, the bird picked a floating pod, tossed it into the air and caught it again. As the Australasian Darter maturing individual possibly was a male, it could be practicing to gather sticks for nest construction, whereas playing with the pod is related to prey handling.

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Behavioral responses of urban birds to human disturbance in urban parks at Curitiba, Paraná (Brazil)

Cited by 7 publications

References 24 publications

Threatened neotropical birds are big, ecologically specialized, and found in less humanized refuge areas

Threatened neotropical birds are big, ecologically specialized, and found in less humanized refuge areas

Urban cycles of human activity do not significantly alter the behaviour of a duetting bird

Playful waterbird: Australasian Darter (Anhinga novaehollandiae) plays with sticks

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