“…For instance, rapid demographic changes in Pygoscelis penguins have been reported over the last 50 years in WAP, resulting in population expansion of sub-Antarctic Gentoo penguin (P. papua) and retreat of Antarctic Adelie penguin (P. adeliae). …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Factors responsible for spatial structuring of population genetic variation are varied, and in many instances there may be no obvious explanations for genetic structuring observed, or those invoked may reflect spurious correlations. A study of little penguins (Eudyptula minor) in southeast Australia documented low spatial structuring of genetic variation with the exception of colonies at the western limit of sampling, and this distinction was attributed to an intervening oceanographic feature (Bonney Upwelling), differences in breeding phenology, or sea level change. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The re-constructed estimates alter the conclusions reached for some sites in east Antarctica in recent assessments of long-term Adélie penguin population change. Our approach is applicable to abundance data for a wide range of colonial, land-breeding marine species including other penguin species, flying seabirds and marine mammals.…”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…This report presents a new case of mucormycosis encountered in penguin characterized by morphological variation of hyphae and presence of sporangia with numerous sporangiospores. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Current penguin activity in Antarctica affects the geochemistry of sediments and their microbial communities; the effects of historical penguin activity are less well understood. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Adélie Penguins are a slightly dimorphic species, with adult males averaging larger than adult females in mass (~11%) as well as bill (~8%) and flipper length (~3%). …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Based on the hypothesis that different brood sizes produce differential reproductive costs, an experimental manipulation during breeding of Adélie penguins was conducted at Hope Bay, Antarctica, to study oxidative status and stress. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…Penguins are a monophyletic group in which many species are found breeding sympatrically, raising questions regarding how these species coexist successfully. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…In the Antarctic marine environment, penguins are a major component of the avian biomass, dominant predators and important bioindicators of ecological change. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The African penguin (Spheniscus demersus) population is estimated at 25,000 breeding pairs, approximately 5% of that at the start of the 20th century, and the species is currently classified as Endangered. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…We determined the primary structures of jacalin-related lectins termed PPL3s (PPL3A, 3B, and 3C, which are dimers consisting of sequence variants α + α, α + β, β + β, respectively) and PPL4, which is heterodimer consisting of α + β subunits, isolated from mantle secretory fluid of Pteria penguin (Mabe) pearl shell. Their carbohydrate-binding properties were analyzed, in addition to that of PPL2A, which was previously reported as a matrix protein. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…We compared levels of variation in the Galápagos penguin to those of its congener, the Magellanic penguin (Spheniscus magellanicus), which has consistently maintained a large population size and thus was used as a non-bottlenecked control. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…This is the first report of a circovirus associated with a penguin species. This circovirus could be an etiological agent of the feather-loss disorder in Antarctic penguins.…”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…In particular, I focus on Maynard Smith’s book The Theory of Evolution (Penguin 1958) and show how he used it to both promote neo-Darwinism and advocate the utility of mathematics in biology. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…We assess the interplay between these processes by studying past and current connectivity and foraging niche overlap among southern rockhopper penguin colonies of the coast of southern South America using genomic and stable isotope analyses. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…The complete mitochondrial genome of the king penguin Aptenodytes patagonicus was firstly determined. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…This has resulted in the African penguin (Spheniscus demersus) being placed on the endangered species list and requires conservation efforts to maintain its free-ranging population and placement under managed care. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

“…In this research, first, a Mitf gene was characterized from Pteria penguin (P. penguin). The PpMitf contained an open reading frame of 1,350 bp, encoding a peptide of 449 deduced amino acids with a highly conserved basic helix-loop-helix-leucine zipper (bHLH-LZ) domain. …”
Enlace del recurso
Enlace del recurso
Enlace del recurso

Enlace del recurso
Enlace del recurso

Enlace del recurso
Enlace del recurso