Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Nola J Parsons"'
Autor:
Romy Klusener, Renata Hurtado, Nola J Parsons, Ralph Eric Thijl Vanstreels, Nicola Stander, Stephen van der Spuy, Katrin Ludynia
Publikováno v:
PLoS ONE, Vol 13, Iss 11, p e0205126 (2018)
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. In the last two decades, the hand-rearing of
Externí odkaz:
https://doaj.org/article/6ca0e1dcdf6546b687ef949e9ba702b9
Autor:
Richard B Sherley, Lauren J Waller, Venessa Strauss, Deon Geldenhuys, Les G Underhill, Nola J Parsons
Publikováno v:
PLoS ONE, Vol 9, Iss 10, p e110794 (2014)
The African penguin Spheniscus demersus has an 'Endangered' conservation status and a decreasing population. Following abandonment, 841 African penguin chicks in 2006 and 481 in 2007 were admitted to SANCCOB (Southern African Foundation for the Conse
Externí odkaz:
https://doaj.org/article/d46de67b7e564161b951a3d226eb0f59
Autor:
Ralph E. T. Vanstreels, Carolina R. F. Chagas, Gediminas Valkiūnas, Carolina C. dos Anjos, Nola J. Parsons, David G. Roberts, Albert Snyman, Renata Hurtado, Karin Kirchgatter, Katrin Ludynia, Pierre A. Pistorius, L. C. Ranford-Cartwright
Publikováno v:
Parasitology, Vol 150, Pp 1286-1295 (2023)
Haemoproteus spp. are dipteran-borne protozoa that infect erythrocytes and reticulo-endothelial cells of birds. These parasites are not usually transmitted between birds belonging to different orders. The suborder Lari (order Charadriiformes) compris
Externí odkaz:
https://doaj.org/article/bb08f1faf4ef427a85102aa22c6a0cf7
Autor:
Ralph E.T. Vanstreels, Nola J. Parsons, Richard B. Sherley, Nicky Stander, Venessa Strauss, Jessica Kemper, Lauren Waller, Barbara J. Barham, Katrin Ludynia
Publikováno v:
Marine Pollution Bulletin. 188:114708
Autor:
Freddie W. Leith, Jennifer L. Grigg, Barbara J. Barham, Peter J. Barham, Katrin Ludynia, Cuan McGeorge, Andile Mdluli, Nola J. Parsons, Lauren J. Waller, Richard B. Sherley
Publikováno v:
Ecology and evolution. 12(9)
In long-lived species, reproductive skipping is a common strategy whereby sexually mature animals skip a breeding season, potentially reducing population growth. This may be an adaptive decision to protect survival, or a non-adaptive decision driven
Autor:
Katrin Ludynia, Lauren J. Waller, Pierre A. Pistorius, Monique Ruthenberg, Cuan McGeorge, Arne Purves, Renata Hurtado, Ralph Eric Thijl Vanstreels, Lorien Pichegru, Nola J. Parsons
Publikováno v:
Ostrich: Journal of African Ornithology; Vol 90, No 4 (2019); 359–372
The African Penguin Spheniscus demersus is an endangered seabird endemic to southern Africa, and killing sprees by terrestrial predators have been one of the main threats for its mainland colonies. The methods employed to manage predators may differ
Autor:
Romy Klusener, Ralph Eric Thijl Vanstreels, Nicola Stander, Stephen van der Spuy, Erna van Wilpe, Tertius A. Gous, Renata Hurtado, Nola J. Parsons
Publikováno v:
Diseases of aquatic organisms. 140
Cryptosporidiumspp. are parasitic intracellular protozoa that infect the digestive, respiratory, and urinary tracts of vertebrates. The disease affects many different avian species across all continents, and >25 species and genotypes ofCryptosporidiu
Autor:
Ralph Eric Thijl Vanstreels, Pierre A. Pistorius, Chandré Nell, Adam M. Schaefer, Albert Snyman, Thomas Stracke, Katrin Ludynia, Nola J. Parsons
Publikováno v:
Parasitology
We investigate the factors associated with the occurrence and abundance of external and blood parasites in African penguins (Spheniscus demersus), an endangered seabird that breeds exclusively on the coasts of Namibia and South Africa. External paras
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e35b823890fa5313ae65c248062b8485
https://europepmc.org/articles/PMC10317652/
https://europepmc.org/articles/PMC10317652/
Autor:
D.G. Roberts, Ralph Eric Thijl Vanstreels, Nola J. Parsons, Renata Hurtado, Pierre A. Pistorius, Albert Snyman
Publikováno v:
Journal of avian medicine and surgery. 33(3)
Babesia species are tickborne hemoprotozoans. Although experiments have shown that primaquine is highly effective in the treatment of Babesia species infections in mammals, this drug has not been widely used for the treatment of avian babesiosis. Con
Autor:
Ralph Eric Thijl Vanstreels, Elizabeth C. Horne, Michaelle Purdee, Nola J. Parsons, Michael J. Yabsley, Barbara C. Shock, Michael A. Peirce
Publikováno v:
International Journal for Parasitology: Parasites and Wildlife
International Journal for Parasitology: Parasites and Wildlife, Vol 6, Iss 3, Pp 257-264 (2017)
International Journal for Parasitology: Parasites and Wildlife, Vol 6, Iss 3, Pp 257-264 (2017)
There are 16 recognized species of avian-infecting Babesia spp. (Piroplasmida: Babesiidae). While the classification of piroplasmids has been historically based on morphological differences, geographic isolation and presumed host and/or vector specif