Results 91 to 100 of about 572,107 (346)

Molecular transformation of organic nitrogen in Antarctic penguin guano-affected soil

Environment International, 2023
Organic nitrogen (ON) is an important participant in the Earth’s N cycle. Previous studies have shown that penguin feces add an abundance of nutrients including N to the soil, significantly changing the eco-environment in ice-free areas in Antarctica. To
Libin Wu, Ming Sheng, Xiaodong Liu, Zhangqin Zheng, Steven D. Emslie, Ning Yang, Xueying Wang, Yaguang Nie, Jing Jin, Qiaorong Xie, Shuang Chen, Donghuan Zhang, Sihui Su, Shujun Zhong, Wei Hu, Junjun Deng, Jialei Zhu, Yulin Qi, Cong-Qiang Liu, Pingqing Fu   +19 more
doaj   +1 more source

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

Oikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade, Taryn Sepúlveda, Cristóbal Rivera, Cristian Aldea, Tomás I. Marina   +4 more
wiley   +1 more source

The Difficulties of Ex Situ Conservation: A Nationwide Investigation of Avian Haemosporidia Among Captive Penguins in Japan

Journal of Zoological and Botanical Gardens
Avian malaria has been a continuous problem in both wild and captive populations of penguins throughout the world. In Japan, where there are over 3000 captive penguins, avian malaria (by Plasmodium spp.) and haemoproteosis (by Haemoproteus spp.) have ...
Mizue Inumaru, Misa Shimizu, Ayumi Shibata, Koichi Murata, Yukita Sato   +4 more
doaj   +1 more source

A Jack of All Trades—Tawaki/Fiordland penguins are able to utilise diverse marine habitats during winter migration [PDF]

PeerJ
Migration and non-breeding movements are common across animal groups and are often driven by seasonal changes in habitat conditions. This behaviour is prevalent in crested penguins (Eudyptes sp.), which have evolved in and still primarily inhabit the ...
Thomas Mattern, Klemens Pütz, Pablo Garcia Borboroglu, Ursula Ellenberg, David M. Houston, Bernhard Lüthi, Philip J. Seddon   +6 more
doaj   +2 more sources

Revisiting Charmless Hadronic B_{u,d} Decays in QCD Factorization

, 2009
Within the framework of QCD factorization (QCDF), we consider two different types of power correction effects in order to resolve the CP puzzles and rate deficit problems with penguin-dominated two-body decays of B mesons and color-suppressed tree ...
C. C. Chiang, Chun-Khiang Chua, F. Ambrosino, Hai-Yang Cheng, M. Beneke   +4 more
core   +1 more source

Using habitat models for chinstrap penguins Pygoscelis antarctica to advise krill fisheries management during the penguin breeding season

Diversity and Distributions: A journal of biological invasions and biodiversity, 2018
To predict the at‐sea distribution of chinstrap penguins across the South Orkney Islands and to quantify the overlap with the Southern Ocean krill fishery.
V. Warwick‐Evans, N. Ratcliffe, A. Lowther, F. Manco, Louise Ireland, H. Clewlow, P. Trathan   +6 more
semanticscholar   +1 more source

Community attitudes and support for the restoration of a cryptic seabird in a peopled landscape

People and Nature, EarlyView.
Abstract Ecological restoration projects aim to facilitate species recovery, including the reintroduction and recolonisation of extirpated species. In the case of highly mobile species, restoring habitat within the species' historic range can lead to natural recolonisation.
Michael R. Fox, Todd J. Landers, James C. Russell   +2 more
wiley   +1 more source

Charming penguin contributions to B => K \pi [PDF]

, 2001
We present calculations of the charming-penguin long-distance contributions to B => K \pi decays due to intermediate charmed meson states. Our calculation is based on the Chiral Effective Lagrangean for light and heavy mesons, corrected for the hard pion
A. Ali, A. Deandrea, A. Deandrea, A. J. Buras, B. Bajc, B. Bajc, B. Bajc, C. Isola, C. Isola, C. L. Y. Lee, D. Choudhury, D. Cronin-Hennessy, D. Du, G. Nardulli, J. D. Bjorken, J.-M. Gérard, J.-M. Gérard, M. B. Voloshin, M. B. Voloshin, M. Beneke, M. Beneke, M. Ciuchini, M. Ciuchini, M. Ciuchini, M. Ladisa, M. Ladisa, N. G. Deshpande, N. G. Deshpande, P. Colangelo, P. Colangelo, P. Colangelo, P. Santorelli, R. Casalbuoni, R. Fleischer, R. Fleischer, R. Fleischer, S. Chen, T. Muta, T. N. Pham, W. N. Cottingham, Y. Y. Keum   +40 more
core   +2 more sources

Ground‐truthing of satellite imagery to assess seabird colony size: A test using Adélie penguins

Remote Sensing in Ecology and Conservation, EarlyView.
Adélie penguin colony size can be estimated from space using very high‐resolution (VHR; 0.3–0.6 m resolution) satellite imagery due to the contrast between their guano stain and the surrounding terrain. Our study assessed the utility of VHR imagery for making indirect assessments of changes in colony size.
Alexandra J. Strang, Dean P. Anderson, Esme Robinson, Grant Ballard, Annie E. Schmidt, David G. Ainley, Kerry Barton, Fiona Shanhun, Elissa Z. Cameron, Michelle A. LaRue   +9 more
wiley   +1 more source

A Paleocene penguin from New Zealand substantiates multiple origins of gigantism in fossil Sphenisciformes

Nature Communications, 2017
One of the notable features of penguin evolution is the occurrence of very large species in the early Cenozoic, whose body size greatly exceeded that of the largest extant penguins.
G. Mayr, R. Scofield, V. D. De Pietri, A. Tennyson   +3 more
semanticscholar   +1 more source