Adaptive patterns of anti-predator escape behavior in a globally introduced bird species DOI Creative Commons

Tomas Grim,

Roi Dor, Márk E. Hauber

et al.

NeoBiota, Journal Year: 2024, Volume and Issue: 93, P. 143 - 156

Published: June 3, 2024

Introduced species can represent quasi-experimental, anthropogenic case studies of both ecological and evolutionary principles. When these are firmly established, competitive interactions between native introduced interactions, including foraging, spacing, breeding competition, may be among the costs incurred from such invasions. In turn, genetic and/or plasticity-driven changes in behavior morphology could also take place invading with increasing introduction lag (time since onset introduction). Critically, however, is difficult to study any single non-native population without long-term observations, and, instead, it requires geographically repeated measures focal response variables across invasive populations that were at different times. Here we tested a priori predictors predator-avoidance behaviors through flight initiation distance (FID) assay widely distributed bird species, common myna Acridotheres tristis . The was extensively consistently sampled throughout most its independently ranges all hemispheres. FID increased greater lag. We detected additional functional patterns towards rural range within continuous metric urban-rural gradient shorter distances Equator. Any robust must include proximate as well accordingly, found starting distance, lower immediate human density, flighted over walking escape responses, heights bird’s perch above ground but unrelated group size. Respectively, factors informative about sensory cues triggering anti-predator mynas imply an adaptive set responses this species. Control should into account their extensive behavioral cognitive flexibilities adjust planned management methods accordingly.

Language: Английский

A meta-analysis of the relationship between flock size and flight initiation distance in birds DOI
Ling‐Ying Shuai, Federico Morelli, Peter Mikula

et al.

Animal Behaviour, Journal Year: 2024, Volume and Issue: 210, P. 1 - 9

Published: Feb. 6, 2024

Language: Английский

Citations

10
Human recreational activity does not influence open cup avian nest survival in urban green spaces DOI Creative Commons

Chloe A. Cull,

Mackenzie J. Guest,

Barbara Frei

et al.

Urban Ecosystems, Journal Year: 2025, Volume and Issue: 28(2)

Published: Jan. 30, 2025

Abstract The breeding period of birds is a critical and sensitive portion the annual cycle. Understanding how human use urban green spaces affects nest survival can improve our understanding conserving bird populations in cities support science-based management that benefit both people nature. We conducted field study between April August 2023 multiple Montreal, Quebec, Canada, country’s second-largest city. asked whether presence (distance to trails amount activity) influences four common open-cup nesting species: American robins ( Turdus migratorius ), gray catbirds Dumetella carolinensis Northern cardinals Cardinalis cardinalis yellow warblers Setophaga petechia ). also if variables traditionally associated with survival, such as vegetation concealment seasonality, would influence survival. Our analyses surprisingly revealed no significant activity, concealment, seasonality on for target species. found nests did fail, established during earlier part failed faster. robin were most successful study’s species, whereas cardinal least successful. Within limitations system, findings suggest not negatively impacting success species using spaces. provides integrated science advice land managers so they opportunities connect nature without causing trade-offs biodiversity conservation.

Language: Английский

Citations

1
Effects of light and noise pollution on avian communities of European cities are correlated with the species’ diet DOI Creative Commons
Federico Morelli, Piotr Tryjanowski, Juan Diego Ibáñez‐Álamo

et al.

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: March 16, 2023

Abstract Urbanization affects avian community composition in European cities, increasing biotic homogenization. Anthropic pollution (such as light at night and noise) is among the most important drivers shaping bird use urban areas, where species are mainly attracted by greenery. In this study, we collected data on 127 breeding 1349 point counts distributed along a gradient of urbanization fourteen different cities. The main aim was to explore effects anthropic city characteristics, communities, regarding species’ diet composition. green cover areas increased number insectivorous omnivorous species, while slightly decreasing overall heterogeneity communities. heterogeneity—a measure evenness considering relative coverage grass, shrubs trees—was positively correlated with richness granivorous, insectivorous, level assemblages. Additionally, communities were associated species' diet. Overall, negatively affected not affecting granivorous species. noise pollution, contrast, significantly changes Our results offer some tips planners, managers, ecologists, challenge producing more eco-friendly cities for future.

Language: Английский

Citations

18
Lockdown effects on fear revealed direct and indirect effects of human presence on perceived predation risk DOI Creative Commons
Mario Dı́az, Anders Pape Møller

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 872, P. 162122 - 162122

Published: Feb. 15, 2023

The Covid-19 lockdown reduced drastically human presence outdoors, providing an uncontrolled experiment for disentangling direct and indirect effects of on animal fearfulness. We measured 18,494 flight initiation distances (FIDs, the distance at which individual animals fly away when approached by a human) from 1333 populations 202 bird species taken in four European cities both before, during after lockdown. FIDs decreased rural habitats but increased urban habitats, especially singing birds. Height above ground increases non-singing birds only, adjusted horizontal tolerance to approach according height outside lockdown, while not singing. Responses showed lagged habitats. Differential responses among between signing were consistent with relaxation disturbance as well fear mediated predator release cities. seemed measure balance humans predations risk food needs rather than fear.

Language: Английский

Citations

14
Effects of human disturbance on detectability of non-breeding birds in urban green areas DOI Creative Commons
Samuele Ramellini, Stefano Lapadula,

Luca Bonomelli

et al.

Global Ecology and Conservation, Journal Year: 2024, Volume and Issue: 51, P. e02873 - e02873

Published: March 1, 2024

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

Language: Английский

Citations

5
Disentangling the “many-eyes”, “dilution effect”, “selfish herd”, and “distracted prey” hypotheses in shaping alert and flight initiation distance in a colonial seabird DOI Creative Commons
Tracey L. Hammer, Pierre Bize, Benoît Gineste

et al.

Behavioural Processes, Journal Year: 2023, Volume and Issue: 210, P. 104919 - 104919

Published: July 20, 2023

Language: Английский

Citations

12
Understanding antipredator strategies of insects: Human presence and escape behaviour in Odonata DOI Open Access
Peter Mikula, Paweł Czechowski, Alicja Dubicka‐Czechowska

et al.

Ecological Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 18, 2025

Abstract Insects, like many organisms, face widespread human‐driven habitat transformations which are major threats to biodiversity. However, at the same time, transformed areas including cities increasingly being colonised by wildlife, sometimes serving as important refuges for vulnerable species. Most studies on traits that enable insects thrive in urban environments have focused morphology, physiology, and feeding or reproductive strategies, often overlooking behavioural traits, despite evidence from vertebrates showing tolerance towards humans is key wildlife successfully colonise cities. In this study, we tested effects of urbanisation, along with a range life‐history, environmental contextual humans—measured flight initiation distance—in 14 Odonata (dragonflies damselflies) species western Poland. We found escape distances were moderately repeatable within Urbanisation had generally weak effect behaviour; however, odonates delayed their sites high human presence. also tended increase observer’ starting distance species‐specific body size decrease perch height. Additionally, male more likely earlier than females. These results suggest can sense levels anthropogenic disturbance adjust behaviour accordingly. Furthermore, our findings indicate some basic patterns principles commonly reported vertebrates, such ability tolerate presence mass, may apply invertebrates. This implications understanding ecology evolution antipredator strategies conservation.

Language: Английский

Citations

0
Desktop Method to Map and Assess Environmental Impacts of Formal and Informal Mountain Biking Trails in an Urban National Park DOI Creative Commons
Isabella Smith, Catherine Marina Pickering

Ecological Management & Restoration, Journal Year: 2025, Volume and Issue: 26(2)

Published: April 12, 2025

ABSTRACT Recreational trails, including informal trails created by visitors, have a range of ecological impacts, but mapping and assessing these impacts can be expensive time‐consuming. It is increasingly possible to harness publicly available data posted park visitors fitness platforms combine it with other spatial field help prioritise management actions enhance conservation visitor experiences. Here we outline then apply such desktop methodology assess the extensive network formal mountain biking in popular urban national Australia. Across Nerang National Park on Gold Coast, 31.4 km 36.2 bike were identified assessed using from platform Trailforks existing trail records managers. Informal mostly higher more remote parts steeper slopes generally less than closer main entrance. The resulted loss 0.8% vegetation, increased fragmentation potentially disturb wildlife across 13% Park, some traversing an important wetland catchment. results demonstrate scale nature potential which doubled area Park. They highlight need for specific actions, as closing restoring particularly when poorly designed areas high value.

Language: Английский

Citations

0
Litter buffet: On the use of trash bins by birds in six boreal urban settlements DOI Creative Commons
Michelle García-Arroyo, Miguel A. Gómez‐Martínez, Ian MacGregor‐Fors

et al.

Avian Research, Journal Year: 2023, Volume and Issue: 14, P. 100094 - 100094

Published: Jan. 1, 2023

Unintentional food resources in urban areas (street litter, leftovers, overflowing trash bins) are dietary components of some urban-exploiter bird species. In this study, we report on 13 species six southern Finnish cities using bins and describe differences their activity when provided with (i.e., bait) different bin types. We used generalized linear models (GLM) classification regression trees (CART) to test for associations between environmental variables at the binscapes. Bird binscapes significantly differed among all types was higher after placing bait cases. Bins largest opening had more as opposed those smaller openings or lids. Corvids gulls highest activity, corvids usually being present before placed increasing thereafter. These show that foraging is highly malleable thus susceptible management preventing its occurrence. Suitable waste measures could aid reducing number close surroundings, benefiting both human health.

Language: Английский

Citations

9
Managing wildlife tolerance to humans for ecosystem goods and services DOI Creative Commons
Kenta Uchida, Daniel T. Blumstein, Masashi Soga

et al.

Trends in Ecology & Evolution, Journal Year: 2023, Volume and Issue: 39(3), P. 248 - 257

Published: Nov. 8, 2023

Language: Английский

Citations

9