Browsing by Publication type "article"
Now showing items 1-20 of 66
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A contribution to age determination of cheetahs (Acinonyx jubatus) based on radiographic analysis of the skull and postcranial morphology.
(2019)The aim of this retrospective cross-sectional study was to present comprehensive information about the age-dependent change of skeletal characteristics in captive cheetahs with known age and to assess the benefit of these ... -
Acute stress hyporesponsive period in nestling Thin-billed prions Pachyptila belcheri
(2009)When confronted with acute stressors, vertebrates show a highly conserved evolved sequence of physiological, hormonal and behavioural responses, including the activation of the hypothalamic-pituitary-adrenal axis. Many ... -
Additive Traits Lead to Feeding Advantage and Reproductive Isolation, Promoting Homoploid Hybrid Speciation
(2019-04-26)Speciation through homoploid hybridization (HHS) is considered extremely rare in animals. This is mainly because the establishment of reproductive isolation as a product of hybridization is uncommon. Additionally, many ... -
Are acoustical parameters of begging call elements of thin-billed prions related to chick condition?
(2010)Chicks of burrowing petrels use begging calls to advertise their hunger levels when parents arrived at the nest. In a previous study, adult thin-billed prions Pachyptila belcheri responded to higher begging call rates of ... -
Aspects of the breeding biology of the southern rockhopper penguin Eudyptes c. chrysocome and new consideration on the intrinsic capacity of the A-egg
(2008)The rockhopper penguins Eudyptes chrysocome have recently been split into the northern E. moseleyi and the southern E. chrysocome rockhopper penguin. It is therefore crucial to have a comprehensive understanding of the ... -
Ästhetische Reminiszenzen. Ägyptische Einflüsse im Werk Wassily Kandinskys und sein Verhältnis zum ,Orient‘ mit einem vergleichbaren Beispiel von Henri Matisse
(2021-07-05)Urelemente, Urwesenheiten und Ursprünglichkeiten sind fragliche Begriffe, die von dem Anthroposophen Rudolf Steiner verwendet und später von Künstlern der klassischen Moderne in Bezug auf die fern- und nahöstlichen Künste ... -
Birds from the endangered Monte, the steppes and coastal biomes of the province of Río Negro, northern Patagonia, Argentina
(2011)The main ecosystem in northern Patagonia, Argentina, is the Monte, a semi-desert scrubland home to a high biodiversity. Monte is the most endangered ecosystem of southern South America, with an annual rate of clearance of ... -
Blood and Intestinal Parasites in Wild Psittaciformes: A Case Study of Burrowing Parrots (Cyanoliseus Patagonus)
(2006)Quantifying parasites is essential for understanding the ecological and evolutionary implications of parasites on their hosts. It is also crucial for many conservation attempts carried out in endangered groups of birds, ... -
Breeding biology, chick growth, and diet of the Least Storm-Petrel Oceanodroma microsoma on Islas San Benito, Mexico
(2017)The Least Storm-Petrel Oceanodroma microsoma is endemic to islands on both coasts of Baja California, in Mexico. It is the smallest seabird species and one of the least studied of the order Procellariiformes. We present a ... -
Can faecal glucocorticoid metabolites be used to monitor body condition in wild Upland geese Chloephaga picta leucoptera?
(2011-07-01)The measurement of faecal glucocorticoid metabolites is used as a non-invasive technique to study stress in animal populations. They have been used most widely in mammals, and mammalian studies have also treated issues ... -
Chick provisioning and nest attendance of male and female Wilson’s storm petrels Oceanites oceanicus
(2009)Seabirds show a range of patterns of sexual size dimorphism and sex-specific parental investment, but the underlying causes remain poorly understood. The aim of the present study was to test two longstanding hypotheses of ... -
Combination of At-Sea Activity, Geolocation and Feather Stable Isotopes Documents Where and When Seabirds Molt
(2016)Key facets of the foraging ecology of seabirds during the inter-breeding period still remain poorly understood because of the difficulty of studying them at sea, including during the energy-demanding molting stage. Here, ... -
Corticosterone at fledging depends on nestling condition, not on parental desertion
(2010)In some burrow-nesting birds, fledging is preceded by a strong rise in circulating corticosterone levels. Because the parents may desert nestlings in these species, this rise may be internally triggered or it may be a ... -
¿Cómo reproducirse exitosamente en un ambiente cambiante? Biología reproductiva del loro barranquero (Cyanoliseus patagonus) en el noreste de la Patagonia
(2012)Durante más de 14 años se ha estudiado la biología reproductiva de una población de Loro Barranquero (Cyanoliseus patagonus) en el noreste de la Patagonia, Argentina. En este trabajo se revisan los resultados obtenidos en ... -
Crosstalks of the PTPIP51 interactome revealed in Her2 amplified breast cancer cells by the novel small molecule LDC3/Dynarrestin.
(2019)LDC3/Dynarrestin, an aminothiazole derivative, is a recently developed small molecule, which binds protein tyrosine phosphatase interacting protein 51 (PTPIP51). PTPIP51 interacts with various proteins regulating different ... -
Diet and foraging areas of Southern Ocean seabirds and their prey inferred from stable isotopes: review and case study of Wilson’s storm-petrel
(2005)Analysis of stable isotope ratios in animal tissues has emerged as a powerful tool for determining the trophic level and composition of prey and foraging location. We summarize here data on the stepwise trophic enrichment ... -
Differences in stable isotopes in blood and feathers of seabirds are consistent across species, age and latitude: implications for food web studies
(2008)Stable isotopes of growing feathers and blood both represent assimilated diet, and both tissues are used to study the diet and foraging distribution of marine and terrestrial birds. Although most studies have assumed that ... -
Distribution patterns predict individual specialization in the diet of dolphin gulls
(2013)Many animals show some degree of individual specialization in foraging strategies and diet. This has profound ecological and evolutionary implications. For example, populations containing diverse individual foraging ...