6 Works

Telomere length in relation to colour polymorphism across life stages in the tawny owl

Chiara Morosinotto, Staffan Bensch & Patrik Karell
Abstract of the paper: Telomere erosion has been proposed to be tightly associated with senescence, environmental stressors and life history trade-offs. How telomere dynamics vary across life stages and especially in relation to (heritable) phenotypic traits is still unclear. The tawny owl Strix aluco display a highly heritable melanin-based colour polymorphism, a grey and a brown morph, linked to several fitness traits including morph-specific telomere dynamics. As adults, brown tawny owls have shorter relative telomere...

Data from: Drivers of spatiotemporal variation in survival in a flyway population: a multi-colony study

Rune Skjold Tjørnløv, Morten Frederiksen, Bruno Ens, Markus Öst, Kim Jaatinen, Rolf Larsson, Thomas Christensen & Morten Frederiksen
1. Spatio-temporal variation in population dynamics of migratory populations is shaped by exposure to different environments during the annual cycle. Hence, exposure to similar environments should translate into synchrony in vital rates. Despite a wide-ranging breeding population, the Baltic/Wadden Sea flyway population of eiders (Somateria m. mollissima) shares wintering grounds in the southern Baltic Sea, inner Danish waters and the Wadden Sea; different colonies within this flyway population are therefore likely to exhibit some degree...

The roles of temperature, nest predators and information parasites for geographical variation in egg covering behaviour of tits (Paridae)

Olli Loukola, Peter Adamik, Frank Adriaensen, Emilio Barba, Blandine Doligez, Einar Flensted-Jensen, Tapio Eeva, Sami Kivelä, Toni Laaksonen, Chiara Morosinotto, Raivo Mänd, Petri Niemelä, Vladimir Remeš, Jelmer Samplonius, Manrico Sebastiano, Juan Carlos Senar, Tore Slagsvold, Alberto Sorace, Barbara Tschirren, János Török & Jukka Forsman
Aim: Nest building is widespread among animals. Nests may provide receptacles for eggs, developing offspring and the parents, and protect them from adverse environmental conditions. Nests may also indicate the quality of the territory and its owner and can be considered as an extended phenotype of its builder(s). Nests may, thus, function as a sexual and social signal. Here, we examined ecological and abiotic factors—temperature, nest predation and interspecific information utilization—shaping geographical variation in a...

Information collected during the post-breeding season guides future breeding decisions in a migratory bird

Jere Tolvanen, Chiara Morosinotto, Jukka Forsman & Robert Thomson
Breeding habitat choice and investment decisions are key contributors to fitness in animals. Density of individuals is a well-known cue of habitat quality used for future breeding decisions, but accuracy of density cues decreases as individuals disperse from breeding sites. Used nests remain an available information source also after breeding season, but whether such information is used for breeding decisions is less well known. We experimentally investigated whether migratory, cavity-nesting pied flycatchers (Ficedula hypoleuca) prospect...

Maternal predation risk increases offspring’s exploration but does not affect schooling behavior

Silvia Cattelan, James Herbert-Read, Paolo Panizzon, Alessandro Devigili, Matteo Griggio, Andrea Pilastro & Chiara Morosinotto
The environment that parents experience can influence their reproductive output and their offspring’s fitness via parental effects. Perceived predation risk can affect both parent and offspring phenotype, but it remains unclear to what extent offspring behavioral traits are affected when the mother is exposed to predation risk. This is particularly unclear in live-bearing species where maternal effects could occur during embryogenesis. Here, using a half-sib design to control for paternal effects, we experimentally exposed females...

Data from: Fledging mass is color morph specific and affects local recruitment in a wild bird

Chiara Morosinotto, Jon Brommer, Atte Lindqvist, Kari Ahola, Esa Aaltonen, Teuvo Karstinen & Patrik Karell
Early life conditions may have long-lasting effects on life history. In color polymorphic species, morph-specific sensitivity to environmental conditions may lead to differential fitness. In tawny owl (Strix aluco) pheomelanin-based color polymorphism is expected to be maintained because the brown morph has higher adult fitness in warmer environments, while selection favors the grey morph under colder conditions. Here we investigate body mass at fledging and its consequences until adulthood in a population at the species’...

Registration Year

  • 2020
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Affiliations

  • Novia University of Applied Sciences
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  • Natural Resources Institute Finland
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  • University of Oulu
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  • University of Turku
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  • Lund University
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  • University of Groningen
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  • University of Cambridge
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