Isotopic niche overlap between the invasive leiothrix and potential native competitors

Pagani‐Núñez, Emilio; Renom, Mercè; Furquet, C.; Rodríguez, Jonatan; Llimona, Francesc; Señar, Juan Carlos; Barcelona, Spain de Ciències Naturals de Museu

doi:10.32800/abc.2018.41.0427

Cited by 9 publications

(9 citation statements)

References 38 publications

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“…In Spain, there also appears to be no negative impact or alteration in native bird assemblages following leiothrix invasion (Vallllosera et al, 2016). However, Red-billed Leiothrix do have a high isotopic niche overlap with the European Robin (Erithacus rubecula) and to a lesser degree with Blackcaps (Sylvia atricapilla) in Spain, suggesting that there is potential for resource competition (Pagani-Núñez et al, 2018). In an experimental study, Red-billed Leiothrix were initiators of aggressive interactions, and while apparently more dominant through victorious outcomes, they were not more aggressive than European native species (Pereira et al, 2018).…”

Section: Competitionmentioning

confidence: 92%

Invasive birds: global trends and impacts

2020

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This 381-paged book covers the biology, ecology, impact and management of 34 common alien invasive species, with reviews on the history and context of avian introductions and invasions in five major regions (Oceania, Africa, Europe (including the Middle East, Asia and South America)), as well as management challenges and the potential of citizen science for monitoring alien birds. The book pitches at the introductory level and is ideal for readers to gain a quick and comprehensive view of the current status of global avian invasions. It has brought the records and research of avian invasion one step ahead of other alien invasive animal taxa. Many chapters contain distribution maps and data tables on the diet and morphology of the species, providing a good reference for the species and its management issues. Each chapter also contains a rich list of references that could help readers dive further into the topic.

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Section: Competitionmentioning

confidence: 92%

Invasive birds: global trends and impacts

2020

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“…Trophic competition for fruits and invertebrates may also exist, with Red‐billed Leiothrix dominating other passerines with similar diets (Pagani‐Núñez et al . 2018, Pereira et al . 2018).…”

Section: The Red‐billed Leiothrix As An Invasive Speciesmentioning

confidence: 99%

“…In Portugal and Italy, Red-billed Leiothrix influence the singing behaviour of native Eurasian Blackcaps and European Robins in particular (Ramellini 2017, 2021, Pereira et al 2020b. Trophic competition for fruits and invertebrates may also exist, with Red-billed Leiothrix dominating other passerines with similar diets (Pagani-N uñez et al 2018, Pereira et al 2018. As such, native songbirds occupying dense wooded habitats are most exposed to potential impacts from invasive Red-billed Leiothrix (Farina et al 2013, Pereira et al 2017, Ramellini 2017, Pagani-N uñez et al 2018.…”

Section: The Red-billed Leiothrix As An Invasive Speciesmentioning

confidence: 99%

The Red‐billed Leiothrix (Leiothrix lutea): a new invasive species for Britain?

Broughton

Ramellini

Maziarz

et al. 2022

Ibis

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Invasive non‐native species (INNS) are one of the major threats to global biodiversity. Climate change and garden bird‐feeding may facilitate the establishment of INNS. The Red‐billed Leiothrix Leiothrix lutea is a small woodland passerine, native to subtropical Asia, that is an INNS in several parts of the world, including Europe, following escapes from the aviculture trade. Recently, populations of Red‐billed Leiothrix have established in Spain, Portugal, Italy and France. Previous studies have shown that much of Europe is suitable for the species, including southern Britain. The Red‐billed Leiothrix has not previously been considered as at high risk of establishment in Britain, but we document recent records, including a cluster in southern England, suggesting that establishment may already be underway. We discuss the potential negative impacts of this invasive species on local ecosystems, and how a warming climate and garden bird‐feeding might assist their establishment in temperate Europe. We also highlight the importance of improved recording to monitor the potential establishment of INNS, such as the Red‐billed Leiothrix, in Britain.

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“…Stable isotope analysis (SIA) is widely used to investigate the potential for trophic overlap between invasive and native species (Haubrock et al, 2020; Jackson et al, 2012; Lamb et al, 2021; Layman et al, 2007; Pagani‐Nuñez et al, 2018; Vander Zanden et al, 1999). Analysis of δ 13 C ( 13 C/ 12 C ratio) and δ 15 N ( 15 N/ 14 N ratio) has been used to infer trophic niche partitioning and displacement of native species by invaders (Gargano et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Does invasion by armored catfish shift trophic ecology of native fishes? Evidence from stable isotope analysis

Quintana

Keppeler

Winemiller

2023

Ecology

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Popular as aquarium fish, armored catfishes from South America (Pterygoplichthys spp.) have been introduced and become invasive in tropical and subtropical regions worldwide. These ecosystem engineers can deplete basal resources (e.g., periphyton and detritus), with potential negative effects for native fauna. We studied the trophic ecology of fishes in the Usumacinta River Basin, Guatemala, where Pterygoplichthys is now widespread and locally abundant. We analyzed stable isotopes (δ13C, δ15N) in fish tissues and basal resources to assess the potential impact of Pterygoplichthys on the trophic ecology of six co‐occurring native fishes that feed at a similar trophic level (Astyanax aeneus, Dorosoma petenense, Thorichthys pasionis, Oscura heterospila, Poecilia mexicana, and Gambusia sexradiata). The study was conducted during the dry season in the La Pasion (LPR; high invasion) and San Pedro (SPR; low invasion) rivers. We compared isotopic spaces occupied by native fish and Pterygoplichthys, estimated isotopic overlap, and evaluated the trophic displacement of native species. We also evaluated the relationships of environmental factors, including the relative biomass of the invasive catfish, with δ13C and δ15N signatures. Except for P. mexicana, native species had lower isotopic overlap with the catfish in LPR. Native fish isotopic spaces were compressed and shifted toward higher trophic positions in LPR relative to SPR. Benthic food resources were important for Pterygoplichthys in both rivers, and water‐column resources had greater relative importance (RI) for native species in LPR. Native fish δ13C was significantly associated with Pterygoplichthys biomass, conductivity, and water flow velocity; and water depth and sedimentation had a significant association with native fish δ15N. Findings provide evidence that invasive Pterygoplichthys, along with environmental factors, impact the trophic ecology of native fish in the Usumacinta Basin. Additional field research conducted over longer time periods and mesocosm experiments that account for fish assemblage and environmental variation could elucidate Pterygoplichthys impacts via food resource depletion or habitat alteration.

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Isotopic niche overlap between the invasive leiothrix and potential native competitors

Cited by 9 publications

References 38 publications

Invasive birds: global trends and impacts

Invasive birds: global trends and impacts

The Red‐billed Leiothrix (Leiothrix lutea): a new invasive species for Britain?

Does invasion by armored catfish shift trophic ecology of native fishes? Evidence from stable isotope analysis

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