The reproductive capacity of Monk Parakeets<i>Myiopsitta monachus</i>is higher in their invasive range

Senar, Juan Carlos; Carrillo‐Ortiz, José; Ortega‐Segalerva, Alba; Pell, Francesca S E Dawson; Pascual, Jordi; Arroyo, L.; Mazzoni, D.; Montalvo, Tomás; Hatchwell, Ben J.

doi:10.1080/00063657.2019.1585749

Cited by 25 publications

(39 citation statements)

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“…The fact that most of the non-native populations are urban may be explained by predation release, which allows a higher breeding success in their invaded urbanised habitats than in their native ranges, as was also shown for the highly invasive rose-ringed parakeet Psittacula krameri [97]. In fact, recent work has demonstrated that the breeding success of monk parakeets is twice as high in a Spanish city than in its native range [95]. Other hypotheses, such as competition or parasite release, seem unlike to explain the high success of monk parakeets in urban areas.…”

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confidence: 83%

“…Other hypotheses, such as competition or parasite release, seem unlike to explain the high success of monk parakeets in urban areas. Contrarily to the secondary cavity-nesting rose-ringed parakeet, which competes with native species for nest holes [52], monk parakeets are unique among parrots as they build their own nests using wood sticks on trees and artificial substrates such as power pylons and roofs [65,95], thus avoiding competition for nest sites. Regarding parasite release, monk parakeets gain novel parasites from the recipient community in its invaded range while also maintain parasites from its native range [7,19,70].…”

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confidence: 99%

“…Despite parakeets can steal nest material from conspecific neighbours [16,42], we have never recorded cases of parakeets stealing sticks -to storks, may be due to of differences in the size and ductility of building materials for each species. Although nesting site availability does not explain the use of stork nests, as monk parakeets may use a variety of nesting substrates [65,95], this association may confer breeding advantages to parakeets [23]. Several small-sized native bird species such as sparrows and starlings are also tolerated by white storks and use their nests as nesting substrates [54].…”

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A protective nesting association with native species counteracts biotic resistance for the spread of an invasive parakeet from urban into rural habitats

et al. 2020

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Background: Non-native species are often introduced in cities, where they take advantage of microclimatic conditions, resources provided by humans, and competitor/predator release to establish and proliferate. However, native communities in the surrounding rural or natural areas usually halt their spread through biotic resistance, mainly via top-down regulative processes (predation pressure). Here, we show an unusual commensal interaction between exotic and native bird species that favours the spread of the former from urban to rural habitats. Results: We show how Monk parakeets Myiopsitta monachus, an invasive species often introduced in cities worldwide, associated for breeding with a much larger, native species (the white stork Ciconia ciconia) to reduce predation risk in central Spain, thus allowing their colonization of rural areas. Parakeets selected stork nests close to conspecifics and where breeding raptors were less abundant. Parakeets always flushed when raptors approached their nests when breeding alone, but stayed at their nests when breeding in association with storks. Moreover, when storks abandoned a nest, parakeets abandoned it in the following year, suggesting that storks actually confer protection against predators. Conclusions: Our results show how a protective-nesting association between invasive and native species can counteract biotic resistance to allow the spread of an invasive species across non-urban habitats, where they may become crop pests. Monk parakeet populations are now growing exponentially in several cities in several Mediterranean countries, where they coexist with white storks. Therefore, management plans should consider this risk of spread into rural areas and favour native predators as potential biological controllers.

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A protective nesting association with native species counteracts biotic resistance for the spread of an invasive parakeet from urban into rural habitats

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“…In Argentina, monk parakeet depredation by white-eared opossums ( Didelphis albiventris ) and Patagonian green racer ( Philodryas patagoniensis ) has been described [30]. In Santiago, urban park managers mentioned that black rats ( Rattus rattus ) were observed climbing tree trunks, entering monk parakeets nests, and depredating monk parakeets, something that has also been described in Barcelona, Spain [48]. Lastly, we have observed the use of thorny branches of the native Roman cassie ( Acacia caven ) in monk parakeets’ chamber entrances, likely as a defense barrier to these and other predators.…”

Section: Discussionmentioning

confidence: 99%

“…Their widespread success is attributed to behavioral and ecological traits, such as their flexible diet, gregarious behavior, tolerance to human disturbance and novel habitats, and high population growth rates as a result of their reproductive strategies [1,5,12,46,47]. In fact, recent studies have recognized the higher invasive success of monk parakeets on their invasive range, compared to their native habitats [48].…”

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confidence: 99%

Interactions between Invasive Monk Parakeets (Myiopsitta monachus) and Other Bird Species during Nesting Seasons in Santiago, Chile

Briceño

Sandoval-Rodríguez

Yévenes

et al. 2019

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Simple SummaryThe monk parakeet (Myiopsitta monachus) is an invasive species, unique in the parrot family for its ability to build large nest structures. This species became globally distributed, promoted in part due to the pet trade market, and now is considered a pest because of the economic losses they produce. During the reproductive seasons of 2017 and 2018, we registered interactions between invasive monk parakeets and resident bird species in Santiago, Chile. We observed positive and negative interactions, and herein, we describe parakeets’ nest occupancy by nine bird species, two invasive and seven native. For this reason, the monk parakeet should be considered an ecosystem engineer, a species that is creating available breeding space of potential use for other species. Our results contribute to an assessment of implications of this ecological invasion of local urban wildlife, and raise concern on other impacts, such as disease transmission, as a consequence of these interactions.AbstractThe monk parakeet (Myiopsitta monachus) is considered to be one of the most invasive bird species because its unique ability among parrots to build their own communal nests. Currently, they are considered an invasive species in 19 countries and a pest—even in their native distribution—because of economic losses derived from their impacts. During the reproductive seasons of 2017 and 2018, we registered interactions between invasive monk parakeets and resident bird species in Santiago, Chile. We observed agonistic and affiliative interactions, and further, we described monk parakeets’ nest occupancy by nine bird species, two invasive and seven native. For this reason, we consider that the monk parakeet is an allogenic ecosystem engineer with the potential to shape distribution and richness of sympatric species in urban environments. Our results contribute to an assessment of the implications of the monk parakeet’s ecological invasion to other synanthropic species, and raise concern of other potential impacts, such as pathogen transmission derived from these interactions.

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Brine shrimps adrift: historical species turnover in Western Mediterranean Artemia (Anostraca)

et al. 2022

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Brine shrimps (Artemia) have undergone geographic range and demographic expansions as a result of their interaction with humans since the beginning of salt harvesting. This interaction has favoured the expansion of some species but compromising the survival of others. Mediterranean native populations of Artemia salina from coastal salterns and lagoons are facing the presence and expansion of the introduced and invasive American species Artemia monica (= A. franciscana). However, this species could not be the only threat. Parthenogenetic populations of the Asian species A. urmiana and A. sinica are widespread along the Mediterranean and other areas of the world. In this work, with the use of large cox1 and mitogenomic datasets, phylogenetic and phylogeographic inferences, and a time calibrated tree, we confirmed the Asian origin and recent arrival of the current Western Mediterranean parthenogenetic populations of Artemia. In addition, the replacement of Iberian populations of A. salina by Asiatic parthenogenetic populations lead us to recognize parthenogens as invasive. Current salterns development and commercial importance of Artemia make human-mediated introduction probable. These results demonstrate again the impact that changing human interests have on population expansion or decline of species adapted to anthropogenic habitats. Artemia salina decline makes urgent the implementation of conservation measures such as its use in fish farming and salt production or its inoculation in inland salterns.

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The reproductive capacity of Monk ParakeetsMyiopsitta monachusis higher in their invasive range

Cited by 25 publications

References 17 publications

A protective nesting association with native species counteracts biotic resistance for the spread of an invasive parakeet from urban into rural habitats

A protective nesting association with native species counteracts biotic resistance for the spread of an invasive parakeet from urban into rural habitats

Interactions between Invasive Monk Parakeets (Myiopsitta monachus) and Other Bird Species during Nesting Seasons in Santiago, Chile

Brine shrimps adrift: historical species turnover in Western Mediterranean Artemia (Anostraca)

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