Criteria for Estimating the Condition of Birds: Relationship between Fat Content and Body Size Dimensions in the Hooded Crow Corvus corone cornix

1982 ◽  
Vol 13 (2) ◽  
pp. 141 ◽  
Author(s):  
Tore Slagsvold
Keyword(s):  
Body Size ◽  
Fat Content ◽  
Hooded Crow ◽  
Corvus Corone

Geometry and scanning behaviour in hooded crow(Corvus corone cornix)flocks

1991 ◽  
Vol 58 (2) ◽  
pp. 129-133
Author(s):  
Nicola Saino ◽  
Alberto Coraluppi ◽  
Marta Contini
Keyword(s):  
Hooded Crow ◽  
Corvus Corone

Relationship between breeding density, risk of predation at the nest and parental investment in the hooded crow (Corvus corone comix)

1993 ◽  
Vol 5 (3) ◽  
pp. 408-409
Author(s):  
M. Pieri ◽  
V. Baglione ◽  
A. Mangiarotti ◽  
G. Bogliani
Keyword(s):  
Parental Investment ◽  
Breeding Density ◽  
Hooded Crow ◽  
Risk Of Predation ◽  
Corvus Corone

Factors affecting body size and fat content in a digger wasp

Oecologia ◽  
2000 ◽  
Vol 123 (2) ◽  
pp. 184-191 ◽  
Author(s):  
Erhard Strohm
Keyword(s):  
Body Size ◽  
Fat Content ◽  
Factors Affecting ◽  
Digger Wasp

scholarly journals Cell size and fat content of dietary-restricted Caenorhabditis elegans are regulated by ATX-2, an mTOR repressor

2016 ◽  
Vol 113 (32) ◽  
pp. E4620-E4629 ◽  
Author(s):  
Daniel Z. Bar ◽  
Chayki Charar ◽  
Jehudith Dorfman ◽  
Tam Yadid ◽  
Lionel Tafforeau ◽  
...  
Keyword(s):  
Body Size ◽  
Caenorhabditis Elegans ◽  
Cell Size ◽  
Fat Content ◽  
Mtor Pathway ◽  
The Body ◽  
Dependent Growth ◽  
Multiple Species ◽  
Amp Activated Protein Kinase ◽  
Gdp Dissociation Inhibitor

Dietary restriction (DR) is a metabolic intervention that extends the lifespan of multiple species, including yeast, flies, nematodes, rodents, and, arguably, rhesus monkeys and humans. Hallmarks of lifelong DR are reductions in body size, fecundity, and fat accumulation, as well as slower development. We have identified atx-2, the Caenorhabditis elegans homolog of the human ATXN2L and ATXN2 genes, as the regulator of these multiple DR phenotypes. Down-regulation of atx-2 increases the body size, cell size, and fat content of dietary-restricted animals and speeds animal development, whereas overexpression of atx-2 is sufficient to reduce the body size and brood size of wild-type animals. atx-2 regulates the mechanistic target of rapamycin (mTOR) pathway, downstream of AMP-activated protein kinase (AMPK) and upstream of ribosomal protein S6 kinase and mTOR complex 1 (TORC1), by its direct association with Rab GDP dissociation inhibitor β, which likely regulates RHEB shuttling between GDP-bound and GTP-bound forms. Taken together, this work identifies a previously unknown mechanism regulating multiple aspects of DR, as well as unknown regulators of the mTOR pathway. They also extend our understanding of diet-dependent growth retardation, and offers a potential mechanism to treat obesity.

Variation in Egg Size of the Hooded Crow Corvus corone cornix

1985 ◽  
Vol 16 (1) ◽  
pp. 38 ◽  
Author(s):  
Gunnar Rofstad ◽  
Jostein Sandvik
Keyword(s):  
Egg Size ◽  
Hooded Crow ◽  
Corvus Corone

scholarly journals Lamin regulates the dietary restriction response via the mTOR pathway in Caenorhabditis elegans

2021 ◽  
Author(s):  
Chayki Charar ◽  
Sally Metsuyanim-Cohen ◽  
Daniel Z. Bar
Keyword(s):  
Body Size ◽  
Caenorhabditis Elegans ◽  
Life Span ◽  
Dietary Restriction ◽  
Metabolic Regulation ◽  
Fat Content ◽  
Mtor Pathway ◽  
Reduced Body ◽  
Animal Size ◽  
Mtor Complex 1

Animals subjected to dietary restriction (DR) have reduced body size, low fecundity, slower development, lower fat content and longer life span. We identified lamin as a regulator of multiple dietary restriction phenotypes. Downregulation of lmn-1, the single Caenorhabditis elegans lamin gene, increased animal size and fat content, specifically in DR animals. The LMN-1 protein acts in the mTOR pathway, upstream to RAPTOR and S6K, key component and target of mTOR complex 1 (mTORC1), respectively. DR excludes the mTORC1 activator RAGC-1 from the nucleus. Downregulation of lmn-1 restores RAGC-1 to the nucleus, a necessary step for the activation of the mTOR pathway. These findings further link lamin to metabolic regulation.

scholarly journals Nest occupation and prey grabbing by saker falcon (Falco cherrug) on power lines in the province of Vojvodina (Serbia)

2008 ◽  
Vol 60 (2) ◽  
pp. 271-277 ◽  
Author(s):  
S. Puzovic
Keyword(s):  
Common Vole ◽  
Early Spring ◽  
Power Lines ◽  
Falco Tinnunculus ◽  
Corvus Corax ◽  
Hooded Crow ◽  
Circus Aeruginosus ◽  
Corvus Corone ◽  
Saker Falcon ◽  
Falco Cherrug

Research on nest occupation and prey grabbing by saker falcon (Falco cherrug) on power lines in Vojvodina (Serbia) was done in the period from 1986 to 2004. During three specially analyzed periods, saker falcon took the nests of raven (Corvus corax) in 91% of a total of 22 cases of nest occupation, and those of hooded crow (Corvus corone cornix) in only 9%. Saker falcon regularly grabs prey from different birds that occasionally or constantly spend time around power lines [Kestrel (Falco tinnunculus), hobby (Falco subbuteo), hooded crow (Corvus corone cornix), jack-daw (Corvus monedula), marsh harrier (Circus aeruginosus), hen harrier (Circus cyaneus), buzzard (Buteo buteo), and raven (Corvus corax)]. One year a studied pair of saker falcons on a power line in Donji Srem, Serbia grabbed prey from five different species of birds. Out of a total of 40 cases of prey grabbing in the period from January to December, as much 70% of the grabbed prey was taken from kestrel (Falco tinnunculus). During the winter and early spring, prey was grabbed predominantly by males; after May, prey was sometimes grabbed by females as well. Most of the grabbed prey was common vole (Microtus arvalis).

scholarly journals Salmonellae in Avian Wildlife in Norway from 1969 to 2000

2002 ◽  
Vol 68 (11) ◽  
pp. 5595-5599 ◽  
Author(s):  
Thorbjørn Refsum ◽  
Kjell Handeland ◽  
Dorte Lau Baggesen ◽  
Gudmund Holstad ◽  
Georg Kapperud
Keyword(s):  
Profile Analysis ◽  
Plasmid Profile ◽  
Phage Typing ◽  
Birds Of Prey ◽  
Salmonella Infection ◽  
Hooded Crow ◽  
Corvus Corone ◽  
Serovar Typhimurium ◽  
Paratyphi B ◽  
Pyrrhula Pyrrhula

ABSTRACT Postmortem records of wild-living birds in Norway with laboratory-confirmed findings of salmonella infection were summarized for the period from 1969 to 2000. Salmonella spp. were isolated from 470 birds belonging to 26 species. The salmonella-positive birds included 441 small passerines, 15 gulls, 5 waterfowl, 4 birds of prey, 3 doves, and 2 crows. The bullfinch (Pyrrhula pyrrhula) was by far the most frequently recorded species (54% of the cases). Salmonella enterica serover Typhimurium was recovered from all cases except from one hooded crow (Corvus corone), which yielded serovar Paratyphi-B var. Java. Variant O:4,12 comprised 96% (451 cases) of all serovar Typhimurium isolates, including all the passerines, while variant O:4,5,12 accounted for the remaining 4% (18 cases). The occurrence of salmonellae in small passerines showed a distinct seasonality, with a peak in February and March. Plasmid profile analysis of 346 isolates of serovar Typhimurium O:4,12 detected six profiles, of which two comprised 66 and 28% of the isolates, respectively. Phage typing of 52 randomly selected isolates of serovar Typhimurium O:4,12 from passerines detected four types: DT 40 (54%), U277 (35%), DT 99 (6%), and DT 110 (4%).

Annual variation of immune condition in the Hooded Crow (Corvus corone cornix)

2002 ◽  
Vol 143 (3) ◽  
pp. 351-355 ◽  
Author(s):  
Camilla Acquarone ◽  
Marco Cucco ◽  
Giorgio Malacarne
Keyword(s):  
Annual Variation ◽  
Hooded Crow ◽  
Corvus Corone
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