Genetic structure reveals management units for the yellow cardinal (Gubernatrix cristata), endangered by habitat loss and illegal trapping

Domínguez, Marisol; Tiedemann, Ralph; Reboreda, Juan C.; Segura, Luciano Noel; Tittarelli, Fabián; Mahler, Bettina

doi:10.1007/s10592-017-0964-4

Cited by 25 publications

(32 citation statements)

References 49 publications

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“…When compared to other passerines, mainly from open areas and/or dry forests in Southern South America [84,85], P. coronata from the Chaco/Pantanal had a high diversity at both the haplotype and nucleotide level. Even though some population of Gubernatrix cristata , a highly endangered Thraupidae, had higher nucleotide diversity values [84], this study used the mtDNA control region (mtDNA-CR) as a genetic marker, which evolves faster than ND2 [86]. On the other hand, P. coronata from the Pampa had a low diversity at both indices.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Potential Health and Genetic Impacts in Releasing ConfiscatedParoaria coronataandSaltator similis

Cruz

Fünkler

Zani

et al. 2020

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Illegal capture and trade of wild birds has long been a threat to biodiversity. Translocation—the release of individuals from one location into another—is a useful conservation tool in the management of species. However, both health (such as different pathogens) and adaptive (such as local adaptation), differences among populations must be taken into account, as both can impact the recipient population negatively. Here, we provide health and genetic information to support release planning for two of the most trafficked Brazilian wild bird species (Paroaria coronata and Saltator similis). We focused on two fundamental questions: Are there significant differences in pathogen load between wild and captive populations? Is there significant genetic structure among populations? In total, 223 free-living birds were captured, sampled, and released at the same site. Devices and live decoys characteristics were top factors influencing captures. We tested blood, feces, and oropharyngeal swabs from free-ranging (n=101) and confiscated (n=92) birds for Newcastle disease virus, Salmonella spp., and Mycoplasma gallisepticum. Genetic structure among populations was investigated using mtDNA in a subsample of these birds. We found no evidence for Newcastle disease virus and Salmonella spp. in seized and free-living birds from both species. However, seized P. coronata and S. similis may be potential sources of M. gallisepticum. We found significant but low genetic structure among populations occurring in different Biomes (ΦCT=0.26 for P. coronata; ΦCT=0.13 for S. similis) and no significant structure among populations occurring in the Pampa Biome. These results suggest that while it may be important to screen seized birds for avian pathogens, genetic structure among populations seems to be of lesser concern when planning the release of seized songbirds in the wild.

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Section: Discussionmentioning

confidence: 99%

Assessment of Potential Health and Genetic Impacts in Releasing ConfiscatedParoaria coronataandSaltator similis

Cruz

Fünkler

Zani

et al. 2020

Preprint

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“…We genotyped 10 microsatellite loci following the protocol detailed in Domínguez et al (). We used the above‐mentioned sequencer to size the fluorescently labeled polymerase chain reaction products and software Peak Scanner version 1.0 (Applied Biosystems) and GeneMarker version 2.6.7 (Soft Genetics, State College, PA, USA) to determine allele sizes.…”

Section: Methodsmentioning

confidence: 99%

“…We purified amplification products with the ExoSAP method and sequenced them in a genetic analyzer (3130xl; Applied Biosystems, Foster City, CA, USA) at the Instituto Nacional de Tecnología Agropecuaria. We edited and aligned mitochondrial DNA sequences using Bioedit (version 7.0.5.3; Ibis Therapeutics, Carlsbad, CA, USA) and compared them to reference populations (Domínguez et al 2017) to establish the haplotype for each confiscated individual. We genotyped 10 microsatellite loci following the protocol detailed in Domínguez et al (2017).…”

Section: Methodsmentioning

confidence: 99%

“…We edited and aligned mitochondrial DNA sequences using Bioedit (version 7.0.5.3; Ibis Therapeutics, Carlsbad, CA, USA) and compared them to reference populations (Domínguez et al 2017) to establish the haplotype for each confiscated individual. We genotyped 10 microsatellite loci following the protocol detailed in Domínguez et al (2017). We used the above-mentioned sequencer to size the fluorescently labeled polymerase chain reaction products and software Peak Scanner version 1.0 (Applied Biosystems) and GeneMarker version 2.6.7 (Soft Genetics, State College, PA, USA) to determine allele sizes.…”

Section: Methodsmentioning

confidence: 99%

“…The species is categorized as endangered because of the accelerated decline in population size and the fragmentation of remnant populations (BirdLife International 2018). A previous study that analyzed the genetic structure of natural populations of yellow cardinals in their current distribution using neutral nuclear and mitochondrial molecular markers supports the existence of 3 genetically distinct management units (MUs; Moritz 1999) in Argentina (Domínguez et al 2017;Fig. 1).…”

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Genetic assignment and monitoring of yellow cardinals

et al. 2019

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The yellow cardinal (Gubernatrix cristata) is a passerine bird endemic to southern South America. At present, the species is threatened with extinction, in part because of the capture of wild birds to supply the illegal caged‐bird market. Previous genetic evidence supports the existence of 3 management units for the species in Argentina, where the largest populations are currently found. Our objectives were to guide the reintroduction of these animals to their respective management units by determining the origin of seized specimens from illegal trade using 2 molecular markers, mtDNA and microsatellites, and to monitor the success of the released birds through radio‐telemetry. We compared the performance of different molecular markers and assignment approaches to optimize a technique capable of assigning the origin of confiscated yellow cardinals in a reliable way. Five of 10 released radio‐tracked individuals were predated shortly after liberation; however, 3 were successful in finding a mate and starting reproductive activities. Individual success was independent of the time spent in captivity, the liberation with a partner, the settlement type (semi‐open or closed), and the maximum distance traveled from the point of release. Cardinals that survived had higher individual heterozygosity. Our findings contribute a robust genetic assignment technique to be used in future yellow cardinal seizures and identify factors that might improve subsequent releases. © 2019 The Wildlife Society.

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The lack of males due to illegal trapping is causing polygyny in the globally endangered Yellow Cardinal Gubernatrix cristata

Segura

Perelló

Gress³

et al. 2019

Rev. Bras. Ornitol.

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We present breeding data from the southernmost populations of the globally “Endangered” Yellow Cardinal Gubernatrix cristata in Argentina, confirming the presence of current breeding populations in the region. We monitored a family group in a nesting territory composed of one male and three females throughout the breeding season 2017–2018. We found a low nest success and productivity, probably associated with the lower contribution of the male, since it was attending three reproductive females simultaneously. We attribute this uncommon case of polygyny to the lack of males in the area caused by the high intensity of male trapping for illegal trade.

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Genetic structure reveals management units for the yellow cardinal (Gubernatrix cristata), endangered by habitat loss and illegal trapping

Cited by 25 publications

References 49 publications

Assessment of Potential Health and Genetic Impacts in Releasing ConfiscatedParoaria coronataandSaltator similis

Assessment of Potential Health and Genetic Impacts in Releasing ConfiscatedParoaria coronataandSaltator similis

Genetic assignment and monitoring of yellow cardinals

The lack of males due to illegal trapping is causing polygyny in the globally endangered Yellow Cardinal Gubernatrix cristata

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