Monk parakeet invasion success: a role for nest thermoregulation and bactericidal potential of plant nest material?

Viana, Ivan Réus; Strubbe, Diederik; Zocche, Jairo José

doi:10.1007/s10530-016-1068-7

Cited by 20 publications

(26 citation statements)

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“…Our results provide the first breeding parameters for the Monk Parakeet in Europe, and aside from data on clutch size and breeding success in Florida and Brazil for a small number of birds (Avery et al 2012;, Viana et al 2016), we provide the first comprehensive data on breeding parameters in the invasive range of the species.…”

Section: Discussionmentioning

confidence: 99%

“…Data on survival rates from invasive populations is now available (Conroy & Senar 2009), but equivalent data on breeding parameters is almost non-existent, apart from some incomplete information from Florida, USA, on brood size and fledgling success derived from a small sample of pairs (Avery et al 2012). There is also some limited data based on only two nests in Brazil, where the species has recently spread (Viana et al 2016). Information from Europe, where Monk Parakeets are a widespread invasive species with significant negative economic impacts on ornamental vegetation, human facilities and agriculture (Menchetti & Mori 2014;, Senar et al 2016), is totally non-existent.…”

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confidence: 99%

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

et al. 2019

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We provide detailed breeding parameters for the population of monk parakeets, Myiopsitta monachus, in Barcelona, Spain, based on data collected for 651 nests over five breeding seasons. This invasive population has a high reproductive capacity compared to the native range: fledging success was double, the percentage of pairs attempting second broods three times higher, and 55% of one-year old birds bred compared to almost zero in South America.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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

et al. 2019

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“…Moreover, parakeets have been observed using certain plants brought daily to nests when breeding. This plant material may act as natural insecticides and bactericides, thus contributing towards reducing biotic hazards and increasing nestling survival and hence their invasive success in new environments (VIANA et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Parasitic survey on introduced monk parakeets (Myiopsitta monachus) in Santiago, Chile

Briceño

Surot

González‐Acuña

et al. 2017

Rev. Bras. Parasitol. Vet.

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Central Chile has been identified as a unique ecosystem with high conservation priority because of its high levels of endemism and intensive anthropic pressure. Over a period of almost four decades, the monk parakeet has been successful in establishing and dispersing in urban Santiago, although little is known about its potential impact. Furthermore, nothing is known about its epidemiological risks towards animals or even humans. For this reason, we conducted the first parasitic survey of monk parakeets in Chile through capture, necropsy and thorough external and internal inspection of 92 adult individuals. Among these, 45.7% presented lice that were identified as Paragoniocotes fulvofasciatum, 1.1% had mesostigmatid acari and 8.9% had free-ranging acari. Among 89 parakeets, 19.1% had structures identified as Cryptosporidium sp. This study provides the first description of Cryptosporidium sp. in monk parakeets. Along with the presence of a mesostigmatid acarus in one parakeet, this serves as a public health warning, given that both of these parasites have zoonotic potential.Keywords: Psittacidae, Paragoniocotes fulvofasciatum, mesostigmatid acarus, oribatid acari, Cryptosporidium. ResumoA porção central do Chile é reconhecidamente uma área com ecossistemas únicos de alta prioridade para conservação. Isso se deve aos altos níveis de endemismo na região e pressões antrópicas intensas. Durante quase quatro décadas, a caturrita tem obtido sucesso em seu estabelecimento e dispersão na área urbana de Santiago, apesar da falta de conhecimento com relação ao seu potencial impacto. Além disso, não há informações sobre riscos epidemiológicos para animais e tampouco para humanos. Motivado por essa questão, foi realizado o primeiro levantamento parasitário de caturritas no Chile a partir da captura, necropsia e inspeção interna e externa de 92 indivíduos adultos. Deste total, 45,7% apresentaram piolhos da espécie Paragoniocotes fulvofasciatum, 1,1% apresentaram ácaros da ordem Mesostigmata, e 8,9% apresentaram ácaros de vida livre. Dentre 89 caturritas, 19,1% apresentaram estruturas identificadas como Cryptosporidium sp. Este estudo apresenta a primeira descrição de Cryptosporidium sp. em caturritas. Ademais, a presença de ácaros da ordem Mesostigmata em uma das aves serve como um alerta para saúde pública, considerando que estes dois parasitas apresentam potencial zoonótico.Palavras-chave: Psittacidae, Paragoniocotes fulvofasciatum, ácaro mesostigmatídeo, ácaro orobatídeo, Cryptosporidium.

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“…Also, parrots have been shown to use plants for prophylactic reasons. Previous studies on monk parakeets and red-fronted parakeets described the use of plants known for their insecticidal activity, which protect their nests from parasites [ 94 , 95 , 123 , 124 ]. Furthermore, red-fronted parakeets chew leaves of these plants, mix the chopped material with preen oil and spread the mixture on their feathers to repel insects [ 95 ].…”

Section: Discussionmentioning

confidence: 99%

Can the intake of antiparasitic secondary metabolites explain the low prevalence of hemoparasites among wild Psittaciformes?

et al. 2018

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BackgroundParasites can exert selection pressure on their hosts through effects on survival, on reproductive success, on sexually selected ornament, with important ecological and evolutionary consequences, such as changes in population viability. Consequently, hemoparasites have become the focus of recent avian studies. Infection varies significantly among taxa. Various factors might explain the differences in infection among taxa, including habitat, climate, host density, the presence of vectors, life history and immune defence. Feeding behaviour can also be relevant both through increased exposure to vectors and consumption of secondary metabolites with preventative or therapeutic effects that can reduce parasite load. However, the latter has been little investigated. Psittaciformes (parrots and cockatoos) are a good model to investigate these topics, as they are known to use biological control against ectoparasites and to feed on toxic food. We investigated the presence of avian malaria parasites (Plasmodium), intracellular haemosporidians (Haemoproteus, Leucocytozoon), unicellular flagellate protozoans (Trypanosoma) and microfilariae in 19 Psittaciformes species from a range of habitats in the Indo-Malayan, Australasian and Neotropical regions. We gathered additional data on hemoparasites in wild Psittaciformes from the literature. We considered factors that may control the presence of hemoparasites in the Psittaciformes, compiling information on diet, habitat, and climate. Furthermore, we investigated the role of diet in providing antiparasitic secondary metabolites that could be used as self-medication to reduce parasite load.ResultsWe found hemoparasites in only two of 19 species sampled. Among them, all species that consume at least one food item known for its secondary metabolites with antimalarial, trypanocidal or general antiparasitic properties, were free from hemoparasites. In contrast, the infected parrots do not consume food items with antimalarial or even general antiparasitic properties. We found that the two infected species in this study consumed omnivorous diets. When we combined our data with data from studies previously investigating blood parasites in wild parrots, the positive relationship between omnivorous diets and hemoparasite infestation was confirmed. Individuals from open habitats were less infected than those from forests.ConclusionsThe consumption of food items known for their secondary metabolites with antimalarial, trypanocidal or general antiparasitic properties, as well as the higher proportion of infected species among omnivorous parrots, could explain the low prevalence of hemoparasites reported in many vertebrates.Electronic supplementary materialThe online version of this article (10.1186/s13071-018-2940-3) contains supplementary material, which is available to authorized users.

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Monk parakeet invasion success: a role for nest thermoregulation and bactericidal potential of plant nest material?

Cited by 20 publications

References 60 publications

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

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

Parasitic survey on introduced monk parakeets (Myiopsitta monachus) in Santiago, Chile

Can the intake of antiparasitic secondary metabolites explain the low prevalence of hemoparasites among wild Psittaciformes?

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