Browsing by Supervisor "Waas, Joseph R."
Now showing items 1-19 of 19
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Automated measurement of disease and pain in New Zealand group-housed calves
(University of Waikato, 2015)Exposure to disease and pain will prolong animal ‘suffering’, and as such, diminishes welfare. Identifying behaviours indicative of these conditions can facilitate early detection, timely treatment and improved welfare. ... -
Behavioural interactions and reasons for aggression between Australian magpies (Gymnorhina tibicen) and other birds in New Zealand
(The University of Waikato, 2006)The Australian magpie (Gymnorhina tibicen; magpie hereafter) was introduced to New Zealand from 1864 in an attempt to help control pest invertebrates in pasture. Since the introductions, magpie populations have gradually ... -
Bird repellents for pest control baits
(The University of Waikato, 2003)Poisonous baits are successfully deployed over large areas of New Zealand to control mammalian pests such as brushtail possums (Trichosurus vulpecula) and rats (Rattus spp.). While poison-based control leads to positive ... -
Deterring birds from baits by manipulating colour and odour
(The University of Waikato, 1999)Poisonous baits are used extensively in New Zealand to control introduced mammalian pest species particularly brushtail possums (Trichosurus vulpecula) and rats (Rattus rattus, R. norvegicus, R. exulans). This thesis ... -
Dialect formation in fragmented populations of the endangered North Island kokako (Callaeas wilsoni)
(University of Waikato, 2012)The role of behavioural ecology in the conservation of species and biodiversity remains poorly understood. Observational and experimental studies of bird song, using a biogeographic approach, provide an opportunity to ... -
Disbudding of dairy goat kids: Refining protocols to reduce or eliminate pain
(The University of Waikato, 2018)The aim of this thesis was to investigate potential improvements for disbudding dairy goat kids to eliminate or reduce pain. Behavioural and physiological measures were used to evaluate: (1) pain associated with four ... -
The effects of early handling on play behaviour and social interactions in dairy calves
(The University of Waikato, 2010)The effects of early handling on play behaviour, faecal corticosteroid metabolite concentrations and social interactions during regrouping was studied in 40 Holstein Friesian group housed dairy calves. Calves were exposed ... -
The effects of food restriction on the perception of hunger, metabolic state and stress responsiveness in sheep
(University of Waikato, 2010)Sheep in temperate regions may be exposed to periods of limited food availability and a range of environmental conditions. Insufficient dietary intake may change live weight (LW) and body condition score (BCS) resulting ... -
Evolutionary Significance and Conservation Implications of Vocal Dialects in North Island Kōkako (Callaeas wilsoni)
(University of Waikato, 2012)Kōkako (Callaeas wilsoni) are endangered, duetting songbirds endemic to New Zealand and are confined to a small number of managed mainland reserves and offshore islands. Each fragmented population exhibits distinctive vocal ... -
Habitat use and responses to odours by rodents in New Zealand
(The University of Waikato, 1999)Four species of introduced rodent live in New Zealand. No more than three species are sympatric here, although all four are in more tropical areas. All are pests for economic, public health and conservation reasons. The ... -
House mouse (Mus musculus) use of vertical space and impact on bird nesting success
(University of Waikato, 2016)Prior to human arrival, New Zealand was dominated by birds that had evolved in the absence of mammalian predators. Early Polynesian settlers brought with them the kiore (Rattus exulans), which subsequently decimated many ... -
Monitoring long-tailed bat (Chalinolobus tuberculatus) activity and investigating the effect of aircraft noise on bat behaviour in a modified ecosystem
(University of Waikato, 2010)Echolocating bats are one of the most diverse and cryptic mammalian groups. Individuals are typically small, nocturnal, highly mobile, and rely on high frequency (greater than 20 kHz) vocalisations (i.e. echolocation pulses ... -
Oxytocin as an appetite suppressant that reduces feeding reward
(University of Waikato, 2016)In the environment in which palatable and highly caloric foods are readily available, eating behavior is oftentimes not dictated by the necessity to replenish lacking energy, but rather by the pleasure of consumption. ... -
Relationships among male size, reproductive success, female choice and male advertising calls in Little Penguins (Eudyptula minor)
(The University of Waikato, 2002)The role of male acoustic features in the process of mate choice was investigated in Little Penguins (Eudyptula minor). Male call features and the calling behaviour may reveal important information on male attributes that ... -
Sap feeding behaviour of North Island kaka (Nestor meridionalis septentrionalis, Lorenz 1896) in plantation forests
(The University of Waikato, 1996)North Island kaka (Nestor meridionalis septentrionalis) damage plantation pines (Pinus radiata and Pseudotsuga menziesii) in the Whirinaki Forest. Kaka strip pieces of bark off the trunks to gain access to the sap beneath. ... -
Sequencing the New Zealand dawn chorus: can song playback alter the timing of song initiation?
(University of Waikato, 2017)The dawn chorus of songbirds is a behavioural phenomenon occurring prior to sunrise; birds of many different species sing simultaneously at rapid rates. Avian physiology, social behaviours and local environment all influence ... -
Song and Territorial Behaviour of Male-Male and Male-Female Pairs of the North Island Kokako (Callaeas cinerea wilsoni)
(The University of Waikato, 1998)Male-male pairing has been previously described for captive individuals of two duetting passerines. The sexually monomorphic North Island kokako (Callaeas cinerea wilsoni) is an endangered forest bird which is declining ... -
The activity and functioning of the hypothalamic-pituitary-adrenal axis of the red deer stag (cervus elaphus)
(The University of Waikato, 2000)The activity and functioning of the HPA axis was investigated in red deer stags under basal and stress induced conditions. In order to overcome the confounding effects of stress inherent in standard methods of blood ... -
The use of infrared thermography and behavioural and physiological responses as early disease indicators in calves
(The University of Waikato, 2020)Disease is widely acknowledged to be detrimental to an animal’s welfare and generates significant economic losses. To minimise the impact of disease on animal welfare and consequently reduce economic costs, early disease ...
