Summer foraging by spruce grouse: implications for galliform food habits

1991 ◽  
Vol 69 (6) ◽  
pp. 1708-1711 ◽  
Author(s):  
P. F. De Franceschi ◽  
D. A. Boag

Observations of foraging birds showed that the summer diet of adult and juvenile spruce grouse (Dendaragapus canadensis) in southwestern Alberta included 31 taxa of fungi, vascular plants, and animals. The genus Vaccinium was confirmed as the major food source for these grouse during summer. For the first time, however, conifer needles and fungi were recorded as important components of the diet at this time of the year. The latter observations raised questions about the potential for bias, particularly in terms of the type of the food ingested and the time of day when it was consumed, in studies of the food habits of galliforms that are based only on analyses of crop contents.

2015 ◽  
Vol 129 (1) ◽  
pp. 24 ◽  
Author(s):  
Paul C. Sokoloff

New collections of vascular plants, bryophytes, lichen, and algae are reported for Cunningham Inlet on the north coast of Somerset Island, Nunavut. This list of 48 species of vascular plants, 13 bryophytes, 10 lichens, and five algae includes 136 specimens collected in 2013 and 39 previously unreported specimens from the National Herbarium of Canada at the Canadian Museum of Nature (CAN), Agriculture and Agri-Food Canada’s Vascular Plant Herbarium (DAO), and University of Alberta (ALTA). Ten vascular plants from previous collecting in 1958 are re-reported here to give a comprehensive account of the vascular plant flora of the region. Two vascular plants are recorded for the first time for Somerset Island: Smooth Draba (Draba glabella Pursh) and Edlund’s Fescue (Festuca edlundiae S. G. Aiken, Consaul & Lefkovitch).


2021 ◽  
Vol 15 (2) ◽  
pp. 83-88
Author(s):  
M. S. Eliseev

Updated ACR recommendations for the treatment of gout concerning lifestyle are discussed. Factors related to a lifestyle, above all food habits, for many years were of leading importance in the treatment of patients with gout, even after application of effective drugs. The authors of the updated ACR recommendations for the first time offered to reconsider the role of environmental factors in the genesis of gout and objectively assess the possibility of its non-drug treatment. On the one hand, regardless of the activity of the disease, the need for restrictions of the alcohol, purine-rich products and fructose-containing beverages, as well as the decrease of body weight in obese patients and vitamin C usage unviability are confirmed. On the other hand, these recommendations are conditional. Their new version of ACR recommendations is significantly different from both its previous version and other international and national recommendations, including recommendations on the diagnosis and treatment of gout used in the Russian Federation.


2003 ◽  
Vol 48 (5) ◽  
pp. 342-344 ◽  
Author(s):  
Rivian Weinerman ◽  
VI Glossop ◽  
Randy Wong ◽  
Lara Robinson ◽  
Karen White ◽  
...  

Objectives: To identify the patient profile of first-time no-shows (FTNS) and to examine which process variables predict FTNS. Method: We developed a questionnaire exploring variables that might impact attendance. Of 779 referrals over 9 months, all FTNS ( n = 60) and a sample of randomly selected control subjects ( n = 60) completed the questionnaire. Results: The FTNS rate was 7.7%. A set of 10 variables predicted FTNS at 80% accuracy. Most significant was our finding that “time of day of first appointment” showed a novel and practical difference between FTNS and control subjects. Patients were 3.6 times more likely to show for first appointments scheduled in the afternoon. Conclusions: Simply making first appointments in the afternoon could significantly decrease FTNS incidence.


2015 ◽  
Vol 72 (suppl_1) ◽  
pp. i199-i210 ◽  
Author(s):  
Ian D. Tuck ◽  
Darren M. Parsons ◽  
Bruce W. Hartill ◽  
Stephen M. Chiswell

Abstract Catchability is often a key source of uncertainty with any stock assessment, but especially for burrowing species, as their emergent behaviour is often poorly understood. Quantification of catchability will provide a major step towards improvements in the assessment for many species. Scampi (Metanephrops challengeri) are widely distributed around New Zealand, and as with Nephrops (Norway lobster), they occupy burrows in muddy substrate, and are exploited through trawl fisheries, but are only available to these fisheries when emerged on the seabed. Burrow emergence is known to vary over daily and longer cycles. Uncertainty over trawl catchability associated with emergence patterns has led to the development of photographic survey approaches for scampi, based on the counts of burrows. Both survey approaches require an understanding of burrow occupancy and emergence rates to estimate trawl/photo survey catchability, which is a key source of uncertainty. We used acoustic tagging to examine levels of and patterns in the emergence of Metanephrops, using hydrophone receivers moored close to the seabed. Strong emergence cycles were apparent in relation to tidal current (higher emergence with inshore water flow across the slope) and time of day (peaking just after dawn). These data have subsequently been used within a length-based stock assessment of New Zealand scampi, which uses emergence data in conjunction with burrow and animal counts from photographic surveys, for the first time, to inform priors for trawl (mean 0.094) and photographic (mean 0.46) survey catchability, and for burrow occupancy (mean 49.3%).


Polar Biology ◽  
1996 ◽  
Vol 16 (7) ◽  
pp. 507-512
Author(s):  
J. M. Gili ◽  
V. Alvà ◽  
F. Pagès ◽  
H. Klöser ◽  
W. E. Arntz

Polar Biology ◽  
1996 ◽  
Vol 16 (7) ◽  
pp. 507-512 ◽  
Author(s):  
J. M. Gili ◽  
V. Alvà ◽  
F. Pagès ◽  
H. Klöser ◽  
W. E. Arntz

2011 ◽  
Vol 366 (1565) ◽  
pp. 703-708 ◽  
Author(s):  
P. Kraft ◽  
C. Evangelista ◽  
M. Dacke ◽  
T. Labhart ◽  
M. V. Srinivasan

While it is generally accepted that honeybees ( Apis mellifera ) are capable of using the pattern of polarized light in the sky to navigate to a food source, there is little or no direct behavioural evidence that they actually do so. We have examined whether bees can be trained to find their way through a maze composed of four interconnected tunnels, by using directional information provided by polarized light illumination from the ceilings of the tunnels. The results show that bees can learn this task, thus demonstrating directly, and for the first time, that bees are indeed capable of using the polarized-light information in the sky as a compass to steer their way to a food source.


2012 ◽  
Vol 33 (4) ◽  
pp. 383-394 ◽  
Author(s):  
Karel Prach ◽  
Jitka Klimešová ◽  
Jiří Košnar ◽  
Olexii Redčenko ◽  
Martin Hais

Abstract Vegetation was described in various spatial scales in the area of 37.8 km2 including distinguishing vegetation units, vegetation mapping, recording phytosociological relevés (53), and completing species lists of vascular plants (86), mosses (124) and lichens (40). Phytosociological relevés were elaborated using ordination methods DCA and CCA. The relevés formed clusters corresponding well to a priori assigned vegetation units. Slope and stoniness significantly influenced the vegetation pattern. Despite the high latitude (nearly 80° N), the vegetation is rather rich in species. Non-native species do not expand. The moss Bryum dichotomum is reported for the first time from Svalbard archipelago.


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