Short-toed Treecreeper (Certhia brachydactyla)

Harrap, Simon

doi:10.2173/bow.shttre1.01

Cited by 2 publications

(4 citation statements)

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“…Short‐toed Treecreeper exhibited the most pronounced population differentiation of the six species among the three populations in this study. In contrast to the taxonomy reported by Harrap (2020), which considers the same insular subspecies of Short‐toed Treecreeper ( C. b. dorotheae ) to be present in Crete and Cyprus, we found populations in Crete to differ more from those in Cyprus than those from continental Greece. This finding suggests the Cretan population might also merit description as a distinct taxon, potentially supporting the resurrection of the ‘ spatzi ’ taxon (Stresemann 1926).…”

Section: Discussioncontrasting

confidence: 99%

“…We compared genetic diversity and population differentiation between the two islands and found that populations from Cyprus had higher genetic diversity compared with those from Crete for all six species of this study. All species were more differentiated between island populations than between island and mainland, including in Short‐toed Treecreeper, purported elsewhere to be the same subspecies on the islands (Harrap 2020).…”

Section: Discussionmentioning

confidence: 99%

“…We included three species where at least one insular population is considered taxonomically distinct from the mainland. Short‐toed Treecreeper Certhia brachydactyla in Cyprus is represented by the insular subspecies C. b. dorotheae , though some authorities (Harrap 2020) also extend its range to include the Cretan population. Great Tit Parus major has an insular subspecies P. m. niethammeri in Crete.…”

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confidence: 99%

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Genomic data reveal contrasting patterns of divergence among island and mainland birds of the Eastern Mediterranean

Moysi

Ogolowa

Nikiforou

et al. 2023

Ibis

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Islands have been characterized as natural laboratories because of their distinct and often identifiable role in promoting genetic variation and population differentiation, but they have also been considered evolutionary sinks of biodiversity. Here, we extend classical studies of island biogeography based in the Eastern Mediterranean to compare genetic divergences and population structure among birds in insular and continental populations. We focused on populations of six passerine species (Short-toed Treecreeper, Great Tit, Eurasian Wren, Eurasian Blackbird, Common Chaffinch and Sardinian Warbler) with breeding populations on the islands of Cyprus and Crete and compared those with a continental population from mainland Greece. We sampled 172 individuals from six species and used double-digest RAD sequencing to examine population-level genetic divergence and structure. Population structure analyses using single nucleotide polymorphisms revealed structure between the islands and mainland for all six species, and this was most pronounced in Short-toed Treecreeper, Great Tit and Eurasian Wren. For all species with the exception of the Sardinian Warbler, the populations from the two islands were more differentiated from each other than either was from mainland Greece, reflecting variation in island colonization dynamics. Patterns ranged from pronounced population differentiation among populations, e.g. in Short-toed Treecreeper, where taxonomic revisions are potentially warranted, to others with weak structure among insular and continental populations, such as in Common Chaffinch and Sardinian Warbler. Although some patterns are consistent with increased rates of genetic drift in smaller populations explaining greater differences among the island populations than either insular population has from continental source populations, in others, including in Eurasian Blackbird and Common Chaffinch, higher nucleotide diversity in Cyprus may reflect a demographic pattern of post-glacial north-westward expansion.

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Section: Discussioncontrasting

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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Genomic data reveal contrasting patterns of divergence among island and mainland birds of the Eastern Mediterranean

Moysi

Ogolowa

Nikiforou

et al. 2023

Ibis

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“…The Coal Tit is a small passerine that is resident in Europe, North Africa, and parts of Asia [ 23 ]. The distribution of the Short-toed Treecreeper is limited to Europe and North Africa [ 24 ]. The challenges associated with monitoring the Coal Tit are primarily related to its canopy habits, as they often inhabit the upper and outer parts of the forest canopy [ 25 ], making them potentially difficult to observe depending on forest structure.…”

Section: Methodsmentioning

confidence: 99%

Hearing to the Unseen: AudioMoth and BirdNET as a Cheap and Easy Method for Monitoring Cryptic Bird Species

Bota,

Manzano-Rubio,

Catalán

et al. 2023

Sensors

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The efficient analyses of sound recordings obtained through passive acoustic monitoring (PAM) might be challenging owing to the vast amount of data collected using such technique. The development of species-specific acoustic recognizers (e.g., through deep learning) may alleviate the time required for sound recordings but are often difficult to create. Here, we evaluate the effectiveness of BirdNET, a new machine learning tool freely available for automated recognition and acoustic data processing, for correctly identifying and detecting two cryptic forest bird species. BirdNET precision was high for both the Coal Tit (Peripatus ater) and the Short-toed Treecreeper (Certhia brachydactyla), with mean values of 92.6% and 87.8%, respectively. Using the default values, BirdNET successfully detected the Coal Tit and the Short-toed Treecreeper in 90.5% and 98.4% of the annotated recordings, respectively. We also tested the impact of variable confidence scores on BirdNET performance and estimated the optimal confidence score for each species. Vocal activity patterns of both species, obtained using PAM and BirdNET, reached their peak during the first two hours after sunrise. We hope that our study may encourage researchers and managers to utilize this user-friendly and ready-to-use software, thus contributing to advancements in acoustic sensing and environmental monitoring.

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Short-toed Treecreeper (Certhia brachydactyla)

Cited by 2 publications

References 0 publications

Genomic data reveal contrasting patterns of divergence among island and mainland birds of the Eastern Mediterranean

Genomic data reveal contrasting patterns of divergence among island and mainland birds of the Eastern Mediterranean

Hearing to the Unseen: AudioMoth and BirdNET as a Cheap and Easy Method for Monitoring Cryptic Bird Species

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