Coyote (Car1i.s1ntran.s)depredation is a chronic problem for sheep producers in the western United States. Due to increasingly localized control efforts, behaxior of individual coyotes in sheep-ranching entironments is becoming a more important consideration. We radiotracked 14 coyotes on a year-round sheep-ranching facility in north-coastal California during September 1993-December 1995. Breed...

Cooperative breeding is generally associated with increased philopatry and sedentariness, presumably because short-distance dispersal facilitates the maintenance of kin groups. There are, however, few data on long-distance dispersal in cooperative breeders-the variable likely to be important for genetic diversification and speciation. We tested the hypothesis that cooperative breeders are less ...

Coizclusion The composition of cereal grains has had relatively little attention so far from plant breeders. ‘There appears to be scope for improvement in the quantity and quality of the proteins and in the quantities of some other components, notably oil and fibre. Changes in starch composition are also evidently possible. The indications are that searches for plant material with special quali...

Quantitative genetics (in its various guises) has been the intellectual cornerstone of plant breeding for close to 100 years. While the roots of Mendelian genetics, and its rediscovery, are firmly in the hands of plant breeders, it was Fisher's (1918) variance decomposition paper that marks the modern foundation for both quantitative genetics and plant breeding. We are now embarking on the age ...

Thanks to a stellar evolution code able to compute through the C-flash we link the binary population synthesis of single degenerate progenitors of type Ia supernovae (SNe Ia) to their physical condition at the time of ignition. We show that there is a large range of possible ignition densities and we detail how their probability distribution depends on the accretion properties. The low density ...

OBJECTIVE Involvement in peer victimization has been associated with numerous negative consequences, including poor physical health. The purpose of this study is to improve on previous research evaluating the victimization-health relationship by examining the health (i.e., health-related quality of life [HRQoL], medical service utilization) of both victims and aggressors and examining individua...

The world-wide capacity of genebanks for ex situ conservation of crop genetic resources has increased greatly since the 1970s, improving the access of crop breeders to landraces and wild and weedy relatives. But utilization of genebank resources has not kept pace. The set of popular cultivars in major crops is typically rather small, and their ancestry encompasses only a fraction of the genetic...

1. The impact of feeding sources n-3 fatty acids (FA) to ISA Brown and Shaver white breeders their offspring on antibody titres plasma FA profile was examined. 2. Breeders were fed eithe...

The Honeycomb Selection Design (HSD) is an innovative experimental method whose main feature the even and systematic entry arrangement. Its systematicity, if combined with absence of inter-plant competition that maximizes phenotypic expression differentiation individual plants, enables implementation single-plant selection as early initial generations genetic segregation, facilitating plant bre...

The relationship between individual performance and nonrandom use of habitat is fundamental to ecology; however, empirical tests of this relationship remain limited, especially for higher orders of selection like that of the home range. We quantified the association between lifetime reproductive success (LRS) and variables describing lifetime home ranges during the period of maternal care (spri...