scholarly journals The role of parasite-driven selection in shaping landscape genomic structure in red grouse (Lagopus lagopus scotica)

2015 ◽  
Vol 25 (1) ◽  
pp. 324-341 ◽  
Author(s):  
Marius A. Wenzel ◽  
Alex Douglas ◽  
Marianne C. James ◽  
Steve M. Redpath ◽  
Stuart B. Piertney
Keyword(s):  
Genomic Structure ◽  
Red Grouse ◽  
Lagopus Lagopus

scholarly journals The role of invertebrates in the diet, growth and survival of red grouse (Lagopus lagopus scoticus) chicks

2001 ◽  
Vol 254 (2) ◽  
pp. 137-145 ◽  
Author(s):  
K. J. Park ◽  
P. A. Robertson ◽  
S. T. Campbell ◽  
R. Foster ◽  
Z. M. Russell ◽  
...  
Keyword(s):  
Red Grouse ◽  
Lagopus Lagopus ◽  
Growth And Survival ◽  
Lagopus Lagopus Scoticus

The energetic consequences of parasitism: effects of a developing infection of Trichostrongylus tenuis (Nematoda) on red grouse (Lagopus lagopus scoticus) energy balance, body weight and condition

Parasitology ◽  
1995 ◽  
Vol 110 (4) ◽  
pp. 473-482 ◽  
Author(s):  
R. J. Delahay ◽  
J. R. Speakman ◽  
R. Moss
Keyword(s):  
Energy Balance ◽  
Resting Metabolic Rate ◽  
Red Grouse ◽  
Lagopus Lagopus ◽  
Energy Imbalance ◽  
Daily Energy ◽  
Total Daily Energy Expenditure ◽  
Synchronous Development ◽  
Lagopus Lagopus Scoticus ◽  
Trichostrongylus Tenuis

SUMMARYThe timing of the energetic consequences of a developing, single-dose infection of Trichostrongylus tenuis larvae was investigated in captive red grouse Lagopus lagopus scoticus. At 12 days post-infection (p.i.), infected birds had a resting metabolic rate 16% greater than controls and thenceforth lost weight at a faster rate than controls. At 16 days p.i. infected birds consumed 38% less energy and excreted 33% less energy than controls. The estimated total daily energy expenditure and energy expended on activity for infected birds at 16 days p.i. were 36% and 83% lower, respectively, than for controls. Infected birds lost condition from 16 days p.i. onwards. The period of energy imbalance at 12–16 days p.i. coincided with development of late 4th-stage larvae into adult worms and the onset of patency. After this, the effects on energy balance diminished. Synchronous development of previously arrested T. tenuis larvae in wild birds in spring probably has similar effects to those reported here and places grouse under conditions of energy imbalance. The observed effects on energy balance provide a possible mechanism by which the parasite can reduce fecundity and survival of infected grouse.

scholarly journals Survival of chicks and adults explains variation in population growth in a recovering red grouse Lagopus lagopus scotica population

2018 ◽  
Vol 2018 (1) ◽  
Author(s):  
Sonja C. Ludwig ◽  
Nicholas J. Aebischer ◽  
Damian Bubb ◽  
Staffan Roos ◽  
David Baines
Keyword(s):  
Population Growth ◽  
Red Grouse ◽  
Lagopus Lagopus

Growth Rate, Condition and Survival of Red Grouse Lagopus lagopus scoticus Chicks

1993 ◽  
Vol 24 (4) ◽  
pp. 303 ◽  
Author(s):  
R. Moss ◽  
A. Watson ◽  
R. A. Parr ◽  
I. B. Trenholm ◽  
M. Marquiss
Keyword(s):  
Growth Rate ◽  
Red Grouse ◽  
Rate Condition ◽  
Lagopus Lagopus ◽  
Lagopus Lagopus Scoticus

scholarly journals Identification of an Na+-Dependent Transporter Associated with Saxitoxin-Producing Strains of the Cyanobacterium Anabaena circinalis

2004 ◽  
Vol 70 (8) ◽  
pp. 4711-4719 ◽  
Author(s):  
Francesco Pomati ◽  
Brendan P. Burns ◽  
Brett A. Neilan
Keyword(s):  
Genomic Structure ◽  
Repeated Sequence ◽  
Subtractive Hybridization ◽  
Molecular Probe ◽  
Ph Homeostasis ◽  
Important Health ◽  
Cyanobacterium Anabaena ◽  
Specific Sequences ◽  
Anabaena Circinalis

ABSTRACT Blooms of the freshwater cyanobacterium Anabaena circinalis are recognized as an important health risk worldwide due to the production of a range of toxins such as saxitoxin (STX) and its derivatives. In this study we used HIP1 octameric-palindrome repeated-sequence PCR to compare the genomic structure of phylogenetically similar Australian isolates of A. circinalis. STX-producing and nontoxic cyanobacterial strains showed different HIP1 (highly iterated octameric palindrome 1) DNA patterns, and characteristic interrepeat amplicons for each group were identified. Suppression subtractive hybridization (SSH) was performed using HIP1 PCR-generated libraries to further identify toxic-strain-specific genes. An STX-producing strain and a nontoxic strain of A. circinalis were chosen as testers in two distinct experiments. The two categories of SSH putative tester-specific sequences were characterized by different families of encoded proteins that may be representative of the differences in metabolism between STX-producing and nontoxic A. circinalis strains. DNA-microarray hybridization and genomic screening revealed a toxic-strain-specific HIP1 fragment coding for a putative Na+-dependent transporter. Analysis of this gene demonstrated analogy to the mrpF gene of Bacillus subtilis, whose encoded protein is involved in Na+-specific pH homeostasis. The application of this gene as a molecular probe in laboratory and environmental screening for STX-producing A. circinalis strains was demonstrated. The possible role of this putative Na+-dependent transporter in the toxic cyanobacterial phenotype is also discussed, in light of recent physiological studies of STX-producing cyanobacteria.

Testosterone and autumn territorial behavior in male red grouse Lagopus lagopus scoticus

2005 ◽  
Vol 47 (5) ◽  
pp. 576-584 ◽  
Author(s):  
François Mougeot ◽  
Alistair Dawson ◽  
Steve M. Redpath ◽  
Fiona Leckie
Keyword(s):  
Territorial Behavior ◽  
Red Grouse ◽  
Lagopus Lagopus ◽  
Lagopus Lagopus Scoticus
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