Search Results - "LAWSON, G. L"

Influence of Dermanyssus gallinae and Ascaridia galli infections on behaviour and health of laying hens (Gallus gallus domesticus) by Kilpinen, O, Roepstorff, A, Permin, A, Norgaard-Nielsen, G, Lawson, L.G, Simonsen, H.B

“…1. The effect of infections with Dermanyssus gallinae (poultry red mite or chicken mite) and Ascaridia galli (roundworm) on the behaviour and health of laying…”
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Using a high-powered strobe light to increase the catch of Antarctic krill by Wiebe, P. H, Ashjian, C. J, Gallager, S. M, Davis, C. S, Lawson, G. L, Copley, N. J

“…Adult euphausiids are difficult to capture with the nets typically used by oceanographers due in part to avoidance of the net. A cruise of the Southern Ocean…”
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Relationships of efficiency to reproductive disorders in Danish milk production: a stochastic frontier analysis by Lawson, L G, Bruun, J, Coelli, T, Agger, J F, Lund, M

“…Relationships of various reproductive disorders and milk production performance of Danish dairy farms were investigated. A stochastic frontier production…”
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The Stress of Not Being Able to Perform Dustbathing in Laying Hens by Vestergaard, Klaus S, Skadhauge, E, Lawson, L.G

“…Vestergaard, K. S., E. Skadhauge and L. G. Lawson. The stress of not being able to perform dustbathing in laying hens. Physiol Behav 62(2) 413–419, 1997.—The…”
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Seasonal distribution and movements of coastal cod ( Gadus morhua L.) in Placentia Bay, Newfoundland by Lawson, Gareth L, Rose, George A

“…Sequential acoustic surveys and mark-recapture experiments were used to examine seasonal movements and distribution of coastal cod in Placentia Bay,…”
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Cumulative risk of bovine mastitis treatments in Denmark, Finland, Norway and Sweden by Valde, J P, Lawson, L G, Lindberg, A, Agger, J F, Saloniemi, H, Osterås, O

“…Data from the national dairy cow recording systems during 1997 were used to calculate lactation-specific cumulative risk of mastitis treatments and cumulative…”
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The importance of detectability to acoustic surveys of semi-demersal fish by Lawson, G. L., Rose, G. A.

“…A major source of bias and imprecision in acoustic abundance estimates of semi-demersal fish is detectability, defined here as the proportion of the true…”
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Whale distribution in relation to prey abundance and oceanographic processes in shelf waters of the Western Antarctic Peninsula by Friedlaender, Ari S., Halpin, Pat N., Qian, Song S., Lawson, Gareth L., Wiebe, Peter H., Thiele, Deb, Read, Andrew J.

“…The Western Antarctic Peninsula (WAP) is a biologically rich area supporting large standing stocks of krill and top predators (including whales, seals and…”
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Sows show stronger responses to isolation calls of piglets associated with greater levels of piglet need by WEARY, DANIEL M., LAWSON, GARETH L., THOMPSON, BRIAN K.

“…Natural sequences of calls produced by isolated domestic piglets were played to lactating sows ( N=24) separated from their litters. Two piglets from each of…”
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Movements and diving behavior of Atlantic bluefin tuna Thunnus thynnus in relation to water column structure in the northwestern Atlantic by Lawson, GL, Castleton, MR, Block, BA

“…We analyzed the movements and diving behavior in relation to water column structure of 35 electronically tagged Atlantic bluefin tuna (176 to 240 cm in length…”
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Impact of Forest Management on Insect Abundance and Damage in a Lowland Tropical Forest in Southern Cameroon by Watt, Allan D., Stork, Nigel E., McBeath, Colin, Lawson, Gerald L.

“…1. The rate of deforestation in West Africa was around 2% (12000 km2) per annum during the 1980s, and recent evidence from Cameroon suggests that the rate of…”
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Improved parameterization of Antarctic krill target strength models by LAWSON, Gareth L, WIEBE, Peter H, ASHJIAN, Carin J, DEZHANG CHU, STANTON, Timothy K

“…There are historical discrepancies between empirical observations of Antarctic krill target strength and predictions using theoretical scattering models. These…”
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Acoustically-inferred zooplankton distribution in relation to hydrography west of the Antarctic Peninsula by Lawson, Gareth L., Wiebe, Peter H., Ashjian, Carin J., Gallager, Scott M., Davis, Cabell S., Warren, Joseph D.

“…The relationship between the distribution of zooplankton, especially euphausiids ( Euphausia and Thysanoessa spp.), and hydrographic regimes of the Western…”
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Distribution of zooplankton on the continental shelf off Marguerite Bay, Antarctic Peninsula, during Austral Fall and Winter, 2001 by Ashjian, Carin J., Rosenwaks, Gaelin A., Wiebe, Peter H., Davis, Cabell S., Gallager, Scott M., Copley, Nancy J., Lawson, Gareth L., Alatalo, Philip

“…The Marguerite Bay region of the Western Antarctic Peninsula is known to support a large population of krill during the summer and is hypothesized to be a site…”
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Species identification of pelagic fish schools on the South African continental shelf using acoustic descriptors and ancillary information by Lawson, Gareth L., Barange, Manuel, Fréon, Pierre

“…Stock assessment of exploited pelagic species often relies on hydroacoustic surveys, but a major limitation of this approach stems from an inability to…”
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Comparing acoustic classification methods to estimate krill biomass in the Georges Bank region from 1999 to 2012 by Jech, J. Michael, Lawson, G. L., Lowe, M. R.

“…Krill are a critical component of northern‐latitude ecosystems, yet are poorly monitored in the Gulf of Maine and Georges Bank regions of the northeast United…”
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Tail-in-mouth Behaviour Among Weaner Pigs in Relation to Age, Gender and Group Composition Regarding Gender by Schrøder-petersen, D. L., Simonsen, H. B., Lawson, L. G.

“…Male pigs are significantly more often found to be tail-bitten at slaughter than are females. Age is also thought to be a crucial factor in relation to the…”
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Does predation control the diapausing stock of Calanus finmarchicus in the Gulf of Maine? by Wiebe, P.H., Baumgartner, M.F., Copley, N.J., Lawson, G.L., Davis, C., Ji, R., Greene, C.H.

“…•Calanus finmarchicus is a dominate member of the plankton in the Gulf of Maine.•Diapausing population size in the basins of the Gulf of Maine have strong…”
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The effect of environmental stimulation on the development of behaviour in pigs by Petersen, Volker, Simonsen, Henrik B., Lawson, Lartey G.

“…Eight pairs of litters were observed during Week 4, Week 7 and Week 18. One litter of each pair was kept under barren conditions and the other under enriched…”
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Material properties of North Atlantic cod eggs and early-stage larvae and their influence on acoustic scattering by Chu, Dezhang, Wiebe, Peter H., Copley, Nancy J., Lawson, Gareth L., Puvanendran, Velmurugu

“…To study the acoustic signatures of Atlantic cod (Gadus morhua) at different biological stages from eggs to early-stage larvae (<37 days post-hatch), we…”
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