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26 results for “Phylloscopus”
Data from: Reproductive success of the wood warbler Phylloscopus sibilatrix varies across Europe
<p><strong>Abstract</strong></p> <p>Differences in population trends across a species’ breeding range are ultimately linked to variation in demographic rates. In small songbirds, demographic rates related to fecundity typically have strong effects on population trends. Populations of a forest songbird, the wood warbler <em>Phylloscopus sibilatrix</em>, have been declining in many but not all regions of the European breeding range. We investigated if clutch size, hatching rate, nest survival, and number of fledglings vary across Europe, and if nest survival is related to differences in the regionally dominant nest predator class (birds vs. mammals). From 2009 to 2020, we monitored 1896 nests and used cameras at a subsample of 645 nests in six study regions: the United Kingdom (mid-Wales, Dartmoor, New Forest), Germany (Hessen), Switzerland (Jura mountains), and Poland (Białowieża National Park). Number of fledglings was lowest in New Forest (1.43±CI 0.23), intermediate in Jura (2.41±0.31) and Białowieża (2.26±0.24), and highest in mid-Wales (3.02±0.48) and Dartmoor (2.92±0.32). The reason for low reproductive success in New Forest, Jura, and Białowieża was low nest survival, and large clutch sizes in Białowieża did not compensate for high nest losses. High reproductive success in mid-Wales and Dartmoor was due to high nest survival and large clutch sizes. Overall predation rates were similar everywhere despite variation between the regions in the dominant nest predator class. Unsuccessful nests in mid-Wales were mainly predated by birds, in Dartmoor, New Forest, Hessen, and Jura similarly by birds and mammals, and in Białowieża exclusively by mammals. Regional reproductive success does not match the population trends recently reported for the wood warbler in the six study regions (i.e., high reproduction ≠ positive trend). Annual survival may be a decisive factor, but it is difficult to quantify for a nomadic species such as the wood warbler that rarely returns to the same breeding locations.</p>
Fig. 2 in Song Repertoire And Origins Of Crimean Population Of Chiffchaff, Phylloscopus Collybita (Sylviidae)
Fig. 2. Songs of Crimean (A) and Caucasian (B) Chiffchaffs with identical specific Crimean song elements (marked).
Figure 2 in Non-breeding season records of the Alpine Leaf Warbler Phylloscopus occisinensis
Figure 2. Alpine Leaf Warbler Phylloscopus occisinensis, before release, Hang Dong District, Chiang Mai Province, Thailand, 24 January 2020 (Sontaya Manawattana)
Fig. 5 in Ethological Aspects Of Biodiversity Within And Between Phylloscopus Species: Behavioral Variation Among Birds From The Centre And Periphery Of Breeding Ranges
Fig. 5. Ratio of males of different statuses from the number of all the males tried to occupy territories in the study area in 2007 – 2014.
Fig. 6 in Ethological Aspects Of Biodiversity Within And Between Phylloscopus Species: Behavioral Variation Among Birds From The Centre And Periphery Of Breeding Ranges
Fig. 6. Change of places of singing (1, 2, etc.) during a season in Wood Warblers. Examples for some different controlled males are indicated by the lines of different types (2007 – 2014).
Fig. 1 in Ethological Aspects Of Biodiversity Within And Between Phylloscopus Species: Behavioral Variation Among Birds From The Centre And Periphery Of Breeding Ranges
Fig. 1. Population densities of the Leaf Warblers in the study area at different stages of reproductive seasons of 2007 – 2014.
Fig. 2 in Ethological Aspects Of Biodiversity Within And Between Phylloscopus Species: Behavioral Variation Among Birds From The Centre And Periphery Of Breeding Ranges
Fig. 2. The overlapping of projections of Chiffchaff territories ('maximum-territories' according to the point mapping method) and the real segregating of the territorial rooms in space: a scheme.
Figure 1 in Collyriclum faba (Digenea: Collyriclidae) in migrant Phylloscopus trochilus (Aves: Sylvidae) in Egypt: the first record of the parasite on the African continent
Figure 1. Subcutaneous cysts with Collyriclum faba in the leg (A) and head (B) of Phylloscopus trochilus found naturally infected in Egypt. Photos by I Rząd, Wadi Allaqi, Egypt, 24 September 2012.
Transposable elements mark a repeat-rich region associated with migratory phenotypes of willow warblers (Phylloscopus trochilus).
<p>This upload contains the relevant data (alignments, trees, html TE landscape files, and datasheets) used in the manuscript: "The importance of repeat-rich regions in the migratory phenotypes of the willow warbler (Phylloscopus trochilus): transposable elements as a marker."</p>
Arrival dates of male and female willow warblers (Phylloscopus trochilus) to their breeding site in Sweden 1979-2016
<p><span>Protandry is a widespread life-history phenomenon describing how males precede females at the site or state of reproduction. In migratory birds, protandry has important influence on individual fitness, the migratory syndrome and phenological response to climate change. </span><span>Despite its significance, accurate analyses on the dynamics of protandry using data sets collected at the breeding site, are lacking. Basing our study on records collected daily, spanning a period of 38 years, we aim to investigate protandry dynamics over time in a breeding population of willow warblers (<em>Phylloscopus trochilus</em>). </span><span>Temporal change in the timing of arrival was analysed in males and females, and protandry (number of days between male and female arrival) was investigate both at population level and within breeding pairs. </span><span>Our results show advancement in the arrival time to the breeding site in both sexes, but male arrival has advanced to a greater extent, leading to an increase in protandry both at the population level and within breeding pairs. We do not observe any change in sex ratio that could explain the protandry increase, but pronounced temperature change has occurred at the breeding area and along the migratory route. </span><span>Typically, natural selection opposes earlier arrival in males, but given warmer springs, this counteracting force may be relaxing, enabling an increase in protandry. We discuss whether our results suggests that climate change has caused sex-specific effects, if these could be evolutionary and whether the timing of important life-history stages such as arrival at the breeding site may change at different rates in males and females following environmental shifts. </span></p>
Figure 1 in Non-breeding season records of the Alpine Leaf Warbler Phylloscopus occisinensis
Figure 1. Sampling localities of Phylloscopus affinis (sensu lato) in Bangladesh and Thailand.
Fig. 7 in Ethological Aspects Of Biodiversity Within And Between Phylloscopus Species: Behavioral Variation Among Birds From The Centre And Periphery Of Breeding Ranges
Fig. 7. The example of a Greenish Warbler male's territory.
Fig. 4 in Ethological Aspects Of Biodiversity Within And Between Phylloscopus Species: Behavioral Variation Among Birds From The Centre And Periphery Of Breeding Ranges
Fig. 4. Terms of arrival of Leaf Warblers to the breeding areas in 1973 – 2014.
Fig. 3 in Ethological Aspects Of Biodiversity Within And Between Phylloscopus Species: Behavioral Variation Among Birds From The Centre And Periphery Of Breeding Ranges
Fig. 3. The example of a 'line-territory' of a Chiffchaff male.
Camera trap image of Phylloscopus collybita (2016-01-18T19:05:44Z)
Camera Trap Image taken in <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Camera trap image of Phylloscopus collybita (2018-12-10T10:56:52Z)
Camera Trap Image taken in <a href="https://www.plantentuinmeise.be">Meise Botanic Garden</a>.
Arrival dates of male and female willow warblers (Phylloscopus trochilus) to their breeding site in Sweden 1979-2016
Open the record for dataset details and reuse information.
Lack of habitat segregation and no interspecific territoriality in three syntopic cryptic species of the golden-spectacled warblers Phylloscopus (Seicercus) burkii complex
<p>It is widely accepted that exploitative competition prevents the coexistence of any two or more closely-related species unless differences exists in their ecological niches and resource use. In sibling bird species, exploitative competition is reduced mainly by spatial segregation of competing species. Spatial segregation can be achieved in two basic ways: by using different habitats or microhabitats that each species is predominately exploiting, or by interspecific territoriality. To our knowledge, either habitat segregation or interspecific territoriality or both have been found in all dyads and groups of sympartic sibling bird species studied so far. In this study, we investigated the coexistence of three cryptic sibling species of the golden-spectacled warblers Phylloscopus burkii complex in Hunan province, China: Ph. tephrocephalus, Ph. omeiensis and Ph. valentini. We analyzed their habitat preferences, and spatial interrelations between the species. In order to analyze either presence or absence of interspecific territoriality, we additionally performed con- and heterospecific playback experiments. Contrary to expectations, we found no evidences for either habitat segregation or interspecific territoriality in these three species.</p>
FIGURE 2 in On the taxonomic status of the Siberian Chiffchaff Phylloscopus [collybita] tristis (Phylloscopidae)
FIGURE 2. Distribution of the Common Chiffchaff, including P. collybita collybita, abietinus, caucasicus, menzbieri and brevirostris, with orange indicating breeding and yellow wintering ranges. Distribution of the Siberian Chiffchaff P. [c.] tristis, with purple indicating breeding and blue wintering ranges. The narrow (10km wide) contact zone between P. c. abietinus and P. [c.] tristis in the western Ural foothills is broadly located at the overlap between Common Chiffchaff and Siberian Chiffchaff distributions. The identity of populations wintering in the Middle East is unclear (Shirihai & Svensson 2018; Raković et al. 2019).
FIGURE 1 in On the taxonomic status of the Siberian Chiffchaff Phylloscopus [collybita] tristis (Phylloscopidae)
FIGURE 1. Sonagrams of typical songs and calls recordings retrieved from xeno-canto.org. A) Phylloscopus collybita (abietinus) song (XC718643; Pärnu, Estonia, Uku Paal); B) Phylloscopus c. (abietinus) calls (XC147829; Cheboksary, Russian Federation, Albert Lastukhin); C) Phylloscopus [c.] tristis song (XC486704; Parfenovka, Russian Federation, Stanislas Wroza); D) Phylloscopus [c.] tristis calls (XC750898; Novosibirsk, Russian Federation, Geoff Carey).
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International Brain Laboratory public data
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OpenNeuro
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