Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"Breeding effort"”.
-
Investigating the possible change in breeding strategy of African black oystercatchers
… clutches over many of the sites within their breeding range. As African Black Oystercatchers are very territorial, co-operative polygyny was rejected as a sole cause (through observations). As eggs were found to be significantly similar (through intra-clutch egg shape comparisons) within …
-
GENETICS OF GROUP 14 HERBICIDE TOLERANCE IN LENTIL
… to fluthiacet methyl. Finally, mutation breeding was used to generate material with a higher level of tolerance to both herbicides. After initial screening, several mutant lines were selected for further validation. In the case of sulfentrazone no lines had higher levels of tolerance, but …
-
Breeding Ecology and Productivity of Mallards and Mallard-grey Duck Hybrids in New Zealand
… and Waikato) to answer essential questions about breeding season vital rates and habitat requirements, and to determine factors important in affecting population growth rates. Breeding incidence averaged 0.91 (SE = 0.03), renesting propensity following failure of nests or broods was 0.50 (SE = …
-
Breeding ecology and related life-history traits of the hoatzin, Opisthocomus hoazin, in a primary rainforest habitat
… which are used for climbing, and 4) co-operative breeding behaviour. Despite the information available on digestive mode and taxonomy little has been published on its breeding biology and behaviour and until now almost all knowledge was based on a study in the savannah of Venezuela. This is the …