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10 results for “Luscinia luscinia”
Fig. 1 in Morphological Patterns Of A Nightingale Population In A Contact Zone Of Luscinia Megarhynchos And L. Luscinia
Fig. 1. Locationofthestudyareasbasedonthestudiedpopulations (1: Bódva, 2: Tisza-
Genetic diversity and sperm characteristics are not associated in two bluethroat (Luscinia svecica) populations
<p>Individual heterozygosity may influence the expression of fitness-related traits, via genome-wide or local genetic effects. Earlier studies have shown negative relationships between heterozygosity and sperm variation, predominantly in captive, highly inbred populations. Little is known about the possible influence of variation in heterozygosity on sperm traits in wild, outbred populations. We studied two populations of the bluethroat, one from the widely distributed northern subspecies (<em>Luscinia</em>. <em>s</em>. <em>svecica</em>) and the other from the smaller, more patchily distributed subspecies breeding along the French coast of Brittany (<em>L. s. namnetum</em>). The two subspecies differed significantly in body size, plumage colour, sperm traits and the degree of genetic diversity. However, there was no evidence that sperm traits (total length and motility) were influenced by the degree of heterozygosity at the individual level. In contrast, we found that male body size was positively related to heterozygosity across both populations, indicating a possible relationship between overall genetic diversity and general vigour or ability to obtain food. We conclude that sperm traits are unrelated to levels of heterozygosity in the studied outbred and weakly genetically depauperate bluethroat populations.</p>
Genetic diversity and sperm characteristics are not associated in two bluethroat (Luscinia svecica) populations
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Data from: Sperm morphology, sperm motility and paternity success in the bluethroat (Luscinia svecica)
<p>Postcopulatory sexual selection may select for male primary sexual characteristics like sperm morphology and sperm motility, through sperm competition or cryptic female choice. However, how such characteristics influence male fertilization success remains poorly understood. In this study, we investigate possible correlations between sperm characteristics and paternity success in the socially monogamous bluethroat (<em>Luscinia svecica svecica</em>), predicting that sperm length and sperm swimming speed is positively correlated with paternity success. In total, 25 % (15/61) of broods contained extra-pair offspring and 10 % (33/315) of the offspring were sired by extra-pair males. Paternity success did not correlate significantly with sperm morphology or any aspects of sperm motility. Furthermore, sperm morphology and sperm motility did not correlate significantly with male morphological characters that previously have been shown to be associated with paternity success. Thus, the sperm characteristics investigated here do not appear to be strong predictors of paternity success in bluethroats.</p>
Data from: Sperm morphology, sperm motility and paternity success in the bluethroat (Luscinia svecica)
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Figure 1 from: Stehle M, Lasseck M, Khorramshahi O, Sturm U (2020) Evaluation of acoustic pattern recognition of nightingale (Luscinia megarhynchos) recordings by citizens. Research Ideas and Outcomes 6: e50233. https://doi.org/10.3897/rio.6.e50233
Figure 1 Verified L. megarhynchos recordings in groups based on the ConfS (10-20%, N=10; 20-30%, N=10; 30-40%, N=10; 40-50%, N=10; 50-60%, N=21; 60-70%, N=11; 70-80%, N=11; 80-90%, N=3).
FIGURE 173. Torotrogla lusciniae Skoracki, female. A in Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840
FIGURE 173. Torotrogla lusciniae Skoracki, female. A, dorsal view; B, ventral view.
FIGURE 99. Aulonastus lusciniae Skoracki, female. A in Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840
FIGURE 99. Aulonastus lusciniae Skoracki, female. A, dorsal view; B, ventral view.
FIGURE 100. Aulonastus lusciniae Skoracki, male. A in Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840
FIGURE 100. Aulonastus lusciniae Skoracki, male. A, dorsal view; B, ventral view.
Figure 2 from: Stehle M, Lasseck M, Khorramshahi O, Sturm U (2020) Evaluation of acoustic pattern recognition of nightingale (Luscinia megarhynchos) recordings by citizens. Research Ideas and Outcomes 6: e50233. https://doi.org/10.3897/rio.6.e50233
Figure 2 Vocalization types in verified nightingale recordings, N=78.
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International Brain Laboratory public data
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OpenNeuro
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