Genomic introgression between critically endangered and stable species of Darwin's tree finches on the Galapagos Islands DOI Creative Commons
Rachael Y. Dudaniec, Sonu Yadav, Julian Catchen

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 3, 2024

Abstract Natural hybridisation among rare or endangered species and stable congenerics is increasingly topical for the conservation of species-level diversity under anthropogenic impacts. Evidence beneficial genes being introgressed into selected in hybrids raises concurrent questions about its evolutionary significance. In Darwin’s tree finches on island Floreana (Galapagos Islands, Ecuador), Critically Endangered medium finch (C amarhynchus pauper ) undergoes introgression with small ( Camarhynchus parvulus ), regularly backcross C. parvulus. Earlier studies 2005-2013 documented an increase frequency using field-based microsatellite data. With single nucleotide polymorphism (SNP) data from same sampled 2005 2013 (n = 95), we examine genome-wide divergence across parental hybrid birds evidence selection hybrids. assessing previous estimates found that just 18% previously assigned based microsatellites were to SNPs. Over half (63%) reassigned parvulus, though showed concordance prior assignments. Of 4869 private alleles birds, 348 at a high (≥0.30) exceeded their origin 89-96% time. Across two years, 3436 (70.6%) underwent substantial allele decrease. these, 28 identified as candidate loci via local PCA genome scans outlier tests. Alleles annotated associated inflammation, immunity, brain function development. We provide critically Darwins’ retained by years may aid retention genetic threatened extinction.

Language: Английский

Urbanization’s Hidden Influence: Linking Landscape Alterations and Feather Coloration with Pigeon’s Cholesterol levels DOI

Javiera Arcila,

Isaac Peña‐Villalobos, Catalina B. Muñoz‐Pacheco

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: 271, P. 121115 - 121115

Published: Feb. 13, 2025

Language: Английский

Citations

1
Genomic Introgression Between Critically Endangered and Stable Species of Darwin's Tree Finches on the Galapagos Islands DOI Creative Commons
Rachael Y. Dudaniec, Sonu Yadav, Julian Catchen

et al.

Evolutionary Applications, Journal Year: 2025, Volume and Issue: 18(1)

Published: Jan. 1, 2025

Natural hybridisation among rare or endangered species and stable congenerics is increasingly topical for the conservation of species-level diversity under anthropogenic impacts. Evidence beneficial genes being introgressed into selected in hybrids raises concurrent questions about its evolutionary significance. In Darwin's tree finches on island Floreana (Galapagos Islands, Ecuador), Critically Endangered medium finch (Camarhynchus pauper) undergoes introgression with small parvulus), regularly backcross C. parvulus. Earlier studies 2005-2013 documented an increase frequency Camarhynchus using field-based microsatellite data. With single nucleotide polymorphism (SNP) data from same sampled 2005 2013 (n = 95), we examine genome-wide divergence across parental hybrid birds evidence selection hybrids. We found that just 18% previously assigned based microsatellites could be to SNPs. Over half (63%) were reassigned parvulus, though showed concordance prior assignments. Of 4869 private alleles birds, 348 at a high (≥ 0.30) exceeded their origin 89%-96% time. For detected both years (N 536) between 11%-76% underwent 13%-61% decrease 2013, which was sensitive sampling effort. identified 28 candidates via local PCA outlier tests. Alleles annotated associated inflammation, immunity, brain function development. provide critically may aid retention adaptive genetic threatened extinction.

Language: Английский

Citations

0
City life anticipates the breeding of a bird of prey without affecting its reproductive success DOI Creative Commons
Gianluca Damiani, Giacomo Dell’Omo, David Costantini

et al.

Environmental Research, Journal Year: 2025, Volume and Issue: 273, P. 121235 - 121235

Published: Feb. 25, 2025

Urbanisation poses a profound threat to biodiversity, leading the loss of natural ecosystems and changes in animal communities. Many species birds prey are increasingly associated with urban habitats even when they have low reproductive success. However, it is unclear if this poor performance due worse environmental conditions cities or poorer quality nesting sites. Addressing effects habitat on reproduction under similar (nest-boxes same size material) therefore important we were test direct effect cavity-nesting raptors. To address question, compared life-history traits, metrics success, morphological traits chicks common kestrels (Falco tinnunculus) breeding artificial nest boxes city Rome, nearby rural environments over period five years. We found that laid significantly earlier (10 days average) than habitat. also novel evidence had shorter wings raised (1.2 cm average). By contrast, did not detect any differences clutch size, brood at fledging, egg volume, hatching fledging body mass, tarsus length, condition among habitats. Our findings suggest that, despite phenology, performances across different types. This result contrast previous studies carried out other European cities, indicating some might be optimal for sustaining viable bird populations.

Language: Английский

Citations

0
Health Stress in Birds Increase with Urbanization in a Large Tropical City DOI
Eduardo Guimarães Santos, Júlia Vieira Herter, Helga Correa Wiederhecker

et al.

EcoHealth, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Language: Английский

Citations

0
Genomic introgression between critically endangered and stable species of Darwin's tree finches on the Galapagos Islands DOI Creative Commons
Rachael Y. Dudaniec, Sonu Yadav, Julian Catchen

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 3, 2024

Abstract Natural hybridisation among rare or endangered species and stable congenerics is increasingly topical for the conservation of species-level diversity under anthropogenic impacts. Evidence beneficial genes being introgressed into selected in hybrids raises concurrent questions about its evolutionary significance. In Darwin’s tree finches on island Floreana (Galapagos Islands, Ecuador), Critically Endangered medium finch (C amarhynchus pauper ) undergoes introgression with small ( Camarhynchus parvulus ), regularly backcross C. parvulus. Earlier studies 2005-2013 documented an increase frequency using field-based microsatellite data. With single nucleotide polymorphism (SNP) data from same sampled 2005 2013 (n = 95), we examine genome-wide divergence across parental hybrid birds evidence selection hybrids. assessing previous estimates found that just 18% previously assigned based microsatellites were to SNPs. Over half (63%) reassigned parvulus, though showed concordance prior assignments. Of 4869 private alleles birds, 348 at a high (≥0.30) exceeded their origin 89-96% time. Across two years, 3436 (70.6%) underwent substantial allele decrease. these, 28 identified as candidate loci via local PCA genome scans outlier tests. Alleles annotated associated inflammation, immunity, brain function development. We provide critically Darwins’ retained by years may aid retention genetic threatened extinction.

Language: Английский

Citations

0