Effects of the Recent World Invasion by Ring-Necked Parakeets Psittacula krameri

Menchetti, Mattia; Mori, Emiliano; Angelici, Francesco M.

doi:10.1007/978-3-319-22246-2_12

Cited by 35 publications

(45 citation statements)

References 41 publications

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“…For example, despite many local studies suggesting that common starlings Sturnus vulgaris, one of the most abundant introduced birds in the US, negatively impact native species, Koenig (2003) could find no evidence for this contention in a nationwide analysis of bird census data. Moreover, while many people feeding birds do not enjoy the presence of parakeets, others value them as exotic and colorful additions to the local avifauna (e.g., Menchetti et al, 2016).…”

Section: Does Feeding Inevitably Change Urban Bird Community Structure?mentioning

confidence: 99%

Garden Bird Feeding: Insights and Prospects from a North-South Comparison of This Global Urban Phenomenon

et al. 2017

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Intentional feeding of wild birds in gardens or backyards is one of the most popular forms of human-wildlife interactions in the developed world, especially in urban environments. The scale and intensity of bird feeding are enormous with mainly birdseed consumed daily by a range of species. This represents a subsidy to natural diets of birds attracted to the feeders and typically involves novel dietary components. Yet, relatively little is known about how it influences the behavior and ecology of the species visiting feeders. In part, research has been hampered by logistical difficulties of working in urban areas but studies have demonstrated powerful influences on behavior and phenology of avian breeding, the spread of disease, and the structure of avian communities. Here, we compare bird feeding between Northern and Southern Hemispheres as a means of exploring how similarities and differences in avian responses might inform knowledge of this global urban phenomenon. We start by tracing its origins to north-western Europe and how its expansion has occurred before considering how geographical differences in feeding practices and attitudes map onto bird feeding "on the ground." We explore some of the major emerging themes of recent interest, including why citizens are motivated to feed birds, whether birds become fully dependent on food supplements, the role of feeding in avian disease transmission, and how feeding changes urban bird communities. By proposing that scientists work in collaboration with the public providing food to birds, we pose key research questions that need to be answered urgently and suggest accompanying experimental approaches to do so. These approaches are essential if we are to improve our understanding of how bird feeding shapes the behavior, ecology, movements, and community structure of urban birds. Our hope is that through such citizen science we will be able to provide advice as to location-relevant practices that should maximize benefits to both urban biodiversity and human well-being, and minimize potential adverse impacts. We demonstrate that bird feeding is important for urban biodiversity conservation, community engagement, and in establishing personal connections with nature and their associated benefits.

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Section: Does Feeding Inevitably Change Urban Bird Community Structure?mentioning

confidence: 99%

Garden Bird Feeding: Insights and Prospects from a North-South Comparison of This Global Urban Phenomenon

et al. 2017

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“…Indeed, tree cavities are considered as a limiting factor for cavity-nesting birds [11], especially in urban environments where large old trees may be more scarce than in forested areas. The ring-necked parakeet is considered a major crop pest in its native range and, in areas where it has been introduced, causes damage to agricultural areas [12]. The exponential demographic growth has raised concerns by urban planners regarding the potential negative impacts of the ring-necked parakeet and a better knowledge of the ecological requirements and the potential future distribution of this species is thus needed.…”

Section: Introductionmentioning

confidence: 99%

“Kill Two Birds with One Stone”: Urban Tree Species Classification Using Bi-Temporal Pléiades Images to Study Nesting Preferences of an Invasive Bird

et al. 2017

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This study presents the results of object-based classifications assessing the potential of bi-temporal Pléiades images for mapping broadleaf and coniferous tree species potentially used by the ring-necked parakeet Psittacula krameri for nesting in the urban area of Marseille, France. The first classification was performed based solely on a summer Pléiades image (acquired on 28 July 2015) and the second classification based on bi-temporal Pléiades images (a spring image acquired on 24 March 2016 and the summer image). An ensemble of spectral and textural features was extracted from both images and two machine-learning classifiers were used, Random Forest (RF) and Support Vector Machine (SVM). Regardless of the classifiers, model results suggest that classification based on bi-temporal Pléiades images produces more satisfying results, with an overall accuracy 11.5-13.9% higher than classification using the single-date image. Textural and spectral features extracted from the blue and the NIR bands were consistently ranked among the most important features. Regardless of the classification scheme, RF slightly outperforms SVM. RF classification using bi-temporal Pléiades images allows identifying 98.5% of the tree species used by the ring-necked parakeet for nesting, highlighting the promising value of remote sensing techniques to assess the ecological requirements of fauna in urban areas.

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“…Ring‐necked parakeets can also cause economic and societal impacts; for example, this species is considered a severe crop pest in their native Asian range, and agricultural damage has now also been observed in several EU countries, including to vineyards in the UK (although these impacts are still relatively limited in extent) and almond and sunflower plantations in Israel (Menchetti et al . ).…”

Section: Case Study 2: Parakeets In Europementioning

confidence: 97%

“…In their non‐native ranges, they compete with native birds and bats for nesting cavities (eg Eurasian nuthatches [ Sitta europaea ] in Belgium, greater noctule bats [ Nyctalus lasiopterus ] in Italy and Spain [Menchetti et al . ], echo parakeets [ Psittacula eques ] in Mauritius [Tatayah et al . ]).…”

Section: Case Study 2: Parakeets In Europementioning

confidence: 99%

“…Primarily residents of urban areas, these parakeets are for many a novel and welcomed addition to local parks and gardens, but they will likely become a familiar sight for future generations. In their nonnative ranges, they compete with native birds and bats for nesting cavities (eg Eurasian nuthatches [Sitta europaea] in Belgium, greater noctule bats [Nyctalus lasiopterus] in Italy and Spain [Menchetti et al 2016], echo parakeets [Psittacula eques] in Mauritius [Tatayah et al 2007]). For countries with endemic parrot species, ring-necked parakeets can also pose a serious disease risk; for example, they can transmit Psittacine beak-and-feather disease to endangered echo parakeets (Kundu et al 2012).…”

Section: Case Study 2: Parakeets In Europementioning

confidence: 99%

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Social–ecological mismatches create conservation challenges in introduced species management

Beever

Simberloff

Crowley

et al. 2019

Frontiers in Ecol & Environ

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Introduced species can have important effects on the component species and processes of native ecosystems. However, effective introduced species management can be complicated by technical and social challenges. We identify “social–ecological mismatches” (that is, differences between the scales and functioning of interacting social and ecological systems) as one such challenge. We present three case studies in which mismatches between the organization and functioning of key social and ecological systems have contributed to controversies and debates surrounding introduced species management and policy. We identify three common issues: social systems and cultures may adapt to a new species’ arrival at a different rate than ecosystems; ecological impacts can arise at one spatial scale while social impacts occur at another; and the effects of introduced species can spread widely, whereas management actions are constrained by organizational and/or political boundaries. We propose strategies for collaborative knowledge building and adaptive management that may help address these challenges.

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Effects of the Recent World Invasion by Ring-Necked Parakeets Psittacula krameri

Cited by 35 publications

References 41 publications

Garden Bird Feeding: Insights and Prospects from a North-South Comparison of This Global Urban Phenomenon

Garden Bird Feeding: Insights and Prospects from a North-South Comparison of This Global Urban Phenomenon

“Kill Two Birds with One Stone”: Urban Tree Species Classification Using Bi-Temporal Pléiades Images to Study Nesting Preferences of an Invasive Bird

Social–ecological mismatches create conservation challenges in introduced species management

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