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Documents disponibles écrits par cet auteur (19)
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Article
Exposure to traffic noise weakens territory defence in the Southern Emu-wren (Stipiturus malachurus)
Julian Behrens, Auteur ; Diane Colombelli-Negrel, Auteur ; Sonia Kleindorfer, AuteurAnthropogenic noise has the potential to negatively impact wildlife by disrupting communication and reducing overall fitness. Understanding the effects of traffic noise on signalling behaviour can be important for managing threatened populations[...]
Article
Antonia C. Huge, Auteur ; Nicolas M. Adreani, Auteur ; Diane Colombelli-Negrel, Auteur ; Çağlar Akçay, Auteur ; Lauren K. Common, Auteur ; Sonia Kleindorfer, AuteurNesting success tends to increase with age in birds, in part because older birds select more concealed nest sites based on experience and/or an assessment of prevailing predation risk. In general, greater plant diversity is associated with more [...]
Article
Sonia Kleindorfer, Auteur ; Benedikt Heger, Auteur ; Damian Tohl, Auteur ; Didone Frigerio, Auteur ; Josef Hemetsberger, Auteur ; Leonida Fusani, Auteur ; W. Tecumseh Fitch, Auteur ; Diane Colombelli-Negrel, AuteurCues to individuality, and the corresponding capacity for individual-level discrimination, can allow individually specific investment by conspecifics into offspring, partners, neighbors or competitors. Here we investigated possible cues to indiv[...]
Article
Elizabeth Reid, Auteur ; Alivereti Naikatani, Auteur ; Gunnar Keppel, Auteur ; Sonia Kleindorfer, AuteurHalf of Fiji’s 66 land bird species are endemic and 15 species are threatened with extinction following 70% deforestation. Under conditions of large-scale habitat loss, secondary vegetation can be important for woodland biodiversity conservation[...]
Article
Ashley Langton, Auteur ; Sonia Kleindorfer, AuteurSeveral Darwin’s finch populations on the Galapagos Islands are declining and/or locally extinct. Acoustic surveys provide useful information about population size, but do not provide information on the age or morphology of birds. This study use[...]
Article
Katharina J. Peters, Auteur ; Sonia Kleindorfer, AuteurFloreana Island has the highest proportion of local land bird extinctions on the Galápagos Archipelago, and is home to the range-restricted and critically endangered Medium Tree Finch Camarhynchus pauper. We used acoustic surveys during 2004, 20[...]
Article
Amy L. Slender, Auteur ; Marina Louter, Auteur ; Michael G. Gardner, Auteur ; Sonia Kleindorfer, AuteurDivergence is the first phase of speciation and is commonly thought to occur more readily in allopatric populations. Subspecies are populations that are divergent but generally retain the capacity to interbreed should they come into contact. Two[...]
Article
Diane Colombelli-Negrel, Auteur ; Jeremy Robertson, Auteur ; Sonia Kleindorfer, AuteurThe study of animal communication during predator encounters has provided insights into the function of kin selection, the ontogeny of vocal development, and the mechanism of predator recognition. Less attention has been devoted to the study of [...]
Article
Jefferson García-Loor, Auteur ; Mario Gallego-Abenza, Auteur ; Andrew C. Katsis, Auteur ; Verena Puehringer-Sturmayr, Auteur ; Diane Colombelli-Negrel, Auteur ; Çağlar Akçay, Auteur ; Sonia Kleindorfer, AuteurInformation about an animal’s home range (the geographical area in which it accesses resources for survival and reproduction) is vital broadly for understanding animal behavior and specifically for developing conservation management plans. Altho[...]
Article
Rebekah Christensen, Auteur ; Sonia Kleindorfer, AuteurSize assortative mating has received increasing attention due to its potential to drive divergence and perhaps speciation. In this study, we examined assortative pairing at 17 nests of Darwin's Small Tree Finches, Camarhynchus parvulus. We found[...]
Article
Jody A. O'Connor, Auteur ; Frank J. Sulloway, Auteur ; Sonia Kleindorfer, AuteurIsland species typically exist in pathogen and predator sparse environments before human settlement, and are particularly vulnerable to the impacts of invasive species. In this study, we used the variable circular-plot method to estimate the den[...]
Article
Steven Myers, Auteur ; Geoffrey Brown, Auteur ; Sonia Kleindorfer, AuteurStudies of island versus mainland populations have provided insights into processes that shape adaptive divergence (e.g., through selection in allopatric populations) as well as patterns of morphological change. In this study, we compare the mor[...]
Article
Genetic and morphological divergence in island and mainland birds: Informing conservation priorities
Rachael Y. Dudaniec, Auteur ; Beth E. Schlotfeldt, Auteur ; Terry Bertozzi, Auteur ; Stephen C. Donnellan, Auteur ; Sonia Kleindorfer, AuteurEvolutionary processes can complicate conservation efforts for species with uncertain taxonomic classifications and discrete geographic populations. Discordant morphological and genetic patterns across the geographic range of species further cal[...]
Article
Rachael Y. Dudaniec, Auteur ; Birgit Fessl, Auteur ; Sonia Kleindorfer, AuteurAn integrative approach to managing host-parasite interactions that threaten species communities will benefit from identifying variation in parasite impact across host species, and host-parasite responses to annual climatic variation. We examine[...]
Article
Rebekah Christensen, Auteur ; Sonia Kleindorfer, AuteurTheory predicts that species should have wider foraging niches during conditions of resource scarcity. However, empirical evidence to date has shown mixed patterns, including studies of Darwin's finches that have found narrower foraging niches d[...]
Article
Valeria Zanollo, Auteur ; Matteo Griggio, Auteur ; Jeremy Robertson, Auteur ; Sonia Kleindorfer, AuteurColour variation in birds is often used to signal functional differences between individuals and sexes, though white plumage has usually been disregarded because white feathers were thought to be cheap to produce and hence unreliable signals. He[...]
Article
Rebekah Christensen, Auteur ; Sonia Kleindorfer, Auteur ; Jeremy Robertson, AuteurThe shape and movement of the vocal tract are known to influence bird song. Current theory predicts that large bill and body size are correlated with low frequency song and slow trill rate. It is also widely accepted that song characteristics ar[...]
Article
Toby Heath Galligan, Auteur ; Sonia Kleindorfer, AuteurThe nest of the Yellow-rumped Thornbill Acanthiza chrysorrhoa (endemic to Australia) consists of a lower domed nest where the young are cared for and an upper cup-shaped structure, referred to as the false nest. Numerous hypotheses have been pro[...]
Article
Diane Colombelli-Negrel, Auteur ; Sonia Kleindorfer, AuteurIncreased predation risk should select for reduced parental activity to decrease the probability of visually hunting predators discovering the nest. Parental activity and conspicuousness are known to increase predation risk. Here, we test for se[...]
