Macaroni Penguin Eudyptes chrysolophus moulting on Gough Island, South Atlantic
نویسندگان
چکیده
منابع مشابه
Ontogeny of haemoglobin in the royal penguin Eudyptes chrysolophus schlegeli.
Haemoglobins of chicks, yearlings and known-age sub-adults of the royal penguin were investigated by starch-gel electrophoresis at pH 8-6. Two haemoglobin components were observed in yearlings and sub-adults. These were assumed to be the haemoglobins of adults. Another three haemoglobin components were observed in 3-week-old chicks. In seven out of eight fledging chicks, these chick haemoglobin...
متن کاملStudying Seabird Diet through Genetic Analysis of Faeces: A Case Study on Macaroni Penguins (Eudyptes chrysolophus)
BACKGROUND Determination of seabird diet usually relies on the analysis of stomach-content remains obtained through stomach flushing; this technique is both invasive and logistically difficult. We evaluate the usefulness of DNA-based faecal analysis in a dietary study on chick-rearing macaroni penguins (Eudyptes chrysolophus) at Heard Island. Conventional stomach-content data was also collected...
متن کاملLove thy neighbour or opposites attract? Patterns of spatial segregation and association among crested penguin populations during winter
AIM Competition for food among populations of closely related species and conspecifics that occur in both sympatry and parapatry can be reduced by interspecific and intraspecific spatial segregation. According to predictions of niche partitioning, segregation is expected to occur at habitat boundaries among congeners and within habitats among conspecifics, while negative relationships in the de...
متن کاملIsolation and characterization of Campylobacter jejuni subsp. jejuni from macaroni penguins (Eudyptes chrysolophus) in the subantarctic region.
On Bird Island, South Georgia, albatrosses (n = 140), penguins (n = 100), and fur seals (n = 206) were sampled for Campylobacter jejuni. C. jejuni subsp. jejuni was recovered from three macaroni penguins (Eudyptes chrysolophus). These isolates, the first reported for the subantarctic region, showed low genetic diversity and high similarity to Northern Hemisphere C. jejuni isolates, possibly sug...
متن کاملSerological and virological surveys of the influenza A viruses in Antarctic and sub-Antarctic penguins
To evaluate the avian influenza virus (AIV) circulation in Antarctic and sub-Antarctic penguins we carried out a serosurvey on six species from Livingston, Marion and Gough islands. Seropositivity against AIV was performed on serum samples using a competitive enzyme-linked immunosorbent assay and haemagglutination and neuraminidase inhibition assays. Some oropharyngeal and cloacal swabs were al...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of the African Bird Club
سال: 2014
ISSN: 1352-481X
DOI: 10.5962/p.310053