Variability in leucocyte profiles in thin-billed prions Pachyptila belcheri

2008 ◽  
Vol 150 (1) ◽  
pp. 26-31 ◽  
Author(s):  
Petra Quillfeldt ◽  
Gricelda Ruiz ◽  
Marcelo Aguilar Rivera ◽  
Juan F. Masello
Keyword(s):  
Pachyptila Belcheri ◽  
Leucocyte Profiles

scholarly journals Birds and mammals off the northern coast of Argentina: first report of an association between birds and a feeding Pygmy Right Whale Caprea marginata

Ornis Svecica ◽  
2013 ◽  
Vol 23 (3–4) ◽  
pp. 117-122
Author(s):  
Henrik Kylin
Keyword(s):  
Cold Water ◽  
Northern Coast ◽  
Feeding Groups ◽  
La Plata ◽  
Lagenorhynchus Obscurus ◽  
Right Whale ◽  
Pachyptila Belcheri ◽  
Dusky Dolphins ◽  
Oceanites Oceanicus ◽  
Eleven Species

When the icebreaker Oden passed between 39°36'S, 57°46'W and 39°59'S, 58°11'W on 20 November 2007, an extraordinary observation was made. A feeding Pygmy Right Whale Caprea marginata, a species rarely seen, was attended by eight Grey Phalaropes Phalaropus fulicarius, two Slender-billed Prions Pachyptila belcheri, and four Wilson’s Storm Petrels Oceanites oceanicus. The birds returned to feed around the head of the whale every time it surfaced, presumably copepod plankton straining out between the baleen. The site is off Rio de la Plata estuary where nutrient rich freshwater meets cold water of the Malvinas (Falkland) Current, creating a hotspot with high levels of plankton food. The conditions were extraordinarily favourable for observation with a calm sea, no wind and only a very weak swell. Six multispecies feeding groups were seen with a total of 42 species of birds, eleven species of whales, dolphins and porpoises, and three species of seals. Dusky Dolphins Lagenorhynchus obscurus and Great Shearwaters Puffinus gravis were predominant in the groups.

Blood metal levels, leucocyte profiles, and cytokine profiles in patients with a modular dual-mobility hip prosthesis

2019 ◽  
Vol 101-B (9) ◽  
pp. 1035-1041 ◽  
Author(s):  
David C. Markel ◽  
Therese Bou-Akl ◽  
Mario D. Rossi ◽  
Natalie Pizzimenti ◽  
Bin Wu ◽  
...  
Keyword(s):  
Flow Cytometry ◽  
Short Form ◽  
Harris Hip Score ◽  
Blood Concentrations ◽  
Dual Mobility ◽  
Large Femoral Head ◽  
Serum Cytokines ◽  
Metal Levels ◽  
Leucocyte Profiles

Aims The aim of this study was to evaluate blood metal ion levels, leucocyte profiles, and serum cytokines in patients with a total hip arthroplasty (THA) involving modular dual-mobility components. Patients and Methods A total of 39 patients were recruited, with clinical follow-up of up to two years. Outcome was assessed using the Harris Hip Score (HHS, the 12-Item Short-Form Health Survey (SF-12), the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and a visual analogue scale (VAS) for pain. Blood concentrations of cobalt (Co), chromium (Cr), and serum cytokines were measured. Subpopulations of leucocytes were analyzed by flow cytometry. Results The clinical performance was good. Blood Co levels (ref 1.0 µg/l) were mildly elevated in seven patients at three months, and two patients at two years’ follow-up. The preoperative Cr levels were normal except for one patient with a detectable Cr (1.2 µg/l). Cr levels were detectable in three patients at three months, two patients at one year, and three patients at two years’ follow-up. No patients had symptoms suggestive of failure. Although flow cytometry showed constant circulating leucocyte profiles, there was a significant reduction of serum interleukin (IL)-4, IL-5, and interferon gamma (IFNγ) postoperatively compared with the preoperative levels (p < 0.05). Conclusion These results suggest that THA using modular dual-mobility components is safe. This allows an opportunity to use a large femoral head and a thick polyethylene bearing surface, which is especially useful in revision procedures or high-risk situations when added stability is required. Cite this article: Bone Joint J 2019;101-B:1035–1041.

Factors affecting leucocyte profiles in the little auk, a small Arctic seabird

2014 ◽  
Vol 156 (1) ◽  
pp. 101-111 ◽  
Author(s):  
Dariusz Jakubas ◽  
Katarzyna Wojczulanis-Jakubas ◽  
Anna Kośmicka
Keyword(s):  
Little Auk ◽  
Factors Affecting ◽  
Leucocyte Profiles

Male and female contributions to provisioning rates of thin-billed prions, Pachyptila belcheri, in the South Atlantic

2007 ◽  
Vol 148 (3) ◽  
pp. 367-372 ◽  
Author(s):  
Petra Quillfeldt ◽  
Ian J. Strange ◽  
Gernot Segelbacher ◽  
Juan F. Masello
Keyword(s):  
South Atlantic ◽  
The South ◽  
Male And Female ◽  
Pachyptila Belcheri

scholarly journals Functional characterization of begging calls in Thin-billed Prions Pachyptila belcheri chicks

2009 ◽  
Vol 44 (2) ◽  
pp. 127-137 ◽  
Author(s):  
Amanda Duckworth ◽  
Juan F. Masello ◽  
Roger Mundry ◽  
Petra Quillfeldt
Keyword(s):  
Functional Characterization ◽  
Pachyptila Belcheri

scholarly journals Leucocyte Profiles and Family Size in Fledgling Greylag Geese (Anser Anser)

2017 ◽  
Vol 10 (4) ◽  
pp. 246-252 ◽  
Author(s):  
Claudia A.F. Wascher ◽  
Josef Hemetsberger ◽  
Kurt Kotrschal ◽  
Didone Frigerio
Keyword(s):  
Immune System ◽  
Family Size ◽  
Body Condition ◽  
Health Effect ◽  
Individual Characteristics ◽  
Anser Anser ◽  
Positive Health ◽  
Greylag Geese ◽  
The Individual ◽  
Leucocyte Profiles

In precocial species, large brood sizes are usually considered as beneficial and individuals in larger broods grow faster and are more dominant compared to individuals in small broods. However, little is known whether family size also beneficially affects the offspring's physiology. In the present study, we investigated whether leucocyte profiles in fledgling Greylag Geese ( Anser anser) are affected by (1) family size, (2) individual characteristics, i.e. age, body condition or sex, or (3) characteristics of the parents, i.e. previous reproductive success. From spring 2013 to autumn 2015, we collected blood samples from 100 juvenile Greylag Geese from 20 different pairs. From these samples we determined the absolute leucocyte number, an individual's differential blood cells count and an individual's haematocrit (HCT). The number of fledglings in a family and therefore the number of siblings a focal individual had, was positively related to the percentage of basophils, negatively to the heterophils/lymphocytes ratio (H/L), and tended to be negatively related to the percentage of monocytes and eosinophils in a sample. H/L ratio was negatively related to age in days and tended to be negatively related to body condition, whereas the percentage of basophils tended to be positively related to it. Absolute leucocyte number did not differ between individuals depending on family size. However, composition of different leucocyte types (basophils, eosinophils, H/L ratio) was modulated mostly by the social environment (family size) and not by the characteristics of the individual or the parents. In conclusion, even though we did not find clear evidence of a positive health effect, i.e. a better immune system, in fledgling Greylag Geese of large versus small families, our results suggest that family size modulates different components of the immune system hinting at its stress-reducing effect.

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