The diet of the dingo (Canis lupus dingo and hybrids) in north-eastern Australia: a supplement to the paper of Brook and Kutt (2011)

2012 ◽  
Vol 34 (2) ◽  
pp. 211 ◽  
Author(s):  
Lee Allen ◽  
Mark Goullet ◽  
Russell Palmer
Keyword(s):  
Canis Lupus ◽  
Urban Areas ◽  
Prey Species ◽  
The Body ◽  
Generalist Predators ◽  
Potential Prey ◽  
New Information ◽  
Eastern Australia ◽  
North Eastern ◽  
Wild Dogs

Dingoes and other wild dogs (Canis lupus dingo and hybrids) are generalist predators that consume a wide variety of different prey species within their range. Little is known, however, of the diets of dingoes in north-eastern Australia where the potential for impacts by dingoes exists. Recently new information has been provided on the diets of dingoes from several sites in Queensland, Australia, significantly adding to the body of published knowledge on ecosystems within this region. Further information on the diet of dingoes in north-eastern Australia is added from 1460 scats collected from five sites, representing tropical savannahs, tropical offshore islands (and a matched mainland area), dry sclerophyll forests and peri-urban areas on the fringe of Townsville. Macropods, possums and bandicoots were found to be common prey for dingoes in these areas. Evidence suggested that the frequency of prey remains in scats can be an unreliable indicator of predation risk to potential prey and it was found that novel and unexpected prey species appear in dingo diets as preferred prey become unavailable. The results support the generalisation that dingoes prefer medium- to large-sized native prey species when available but also highlight the capacity for dingoes to exploit populations of both large and small prey species that might not initially be considered at risk from predation based solely on data on scats.

scholarly journals Diet of dingoes and other wild dogs in peri-urban areas of north-eastern Australia

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Benjamin L. Allen ◽  
Erin Carmelito ◽  
Matt Amos ◽  
Mark S. Goullet ◽  
Lee R. Allen ◽  
...  
Keyword(s):  
Urban Areas ◽  
Eastern Australia ◽  
North Eastern ◽  
Wild Dogs

scholarly journals Dingoes at the Doorstep: Home Range Sizes and Activity Patterns of Dingoes and Other Wild Dogs around Urban Areas of North-Eastern Australia

Animals ◽  
2016 ◽  
Vol 6 (8) ◽  
pp. 48 ◽  
Author(s):  
Alice McNeill ◽  
Luke Leung ◽  
Mark Goullet ◽  
Matthew Gentle ◽  
Benjamin Allen
Keyword(s):  
Home Range ◽  
Urban Areas ◽  
Activity Patterns ◽  
Eastern Australia ◽  
North Eastern ◽  
Wild Dogs

Potential impact of aerial baiting for wild dogs on a population of spotted-tailed quolls (Dasyurus maculatus)

2004 ◽  
Vol 31 (6) ◽  
pp. 639 ◽  
Author(s):  
Andrew J. Murray ◽  
Robert N. Poore
Keyword(s):  
Rhodamine B ◽  
Canis Lupus ◽  
Canis Familiaris ◽  
Eastern Australia ◽  
Poison Baiting ◽  
Potential Impact ◽  
Wild Dogs

The spotted-tailed quoll (Dasyurus maculatus) is a threatened marsupial that inhabits forests in eastern Australia. In many of these forests the species is sympatric with populations of wild dogs (Canis lupus dingo, Canis familiaris and hybrids of the two), which are subject to poison-baiting programs. Many of these programs involve dropping meat baits injected with 6 mg of 1080 from helicopters. To date, the effect of this method on populations of spotted-tailed quolls has not been quantified. We carried out a simulated aerial baiting program using meat baits injected with a non-toxic baitmarker, Rhodamine B, which is laid down in the vibrissae of mammals ingesting baits. Of the 16 spotted-tailed quolls subsequently captured, 10 had Rhodamine B in their vibrissae. The potential impact that this level of bait uptake might have on a population of quolls is discussed.

Diet analysis of mammals, raptors and reptiles in a complex predator assemblage in the Blue Mountains, eastern Australia

2011 ◽  
Vol 59 (5) ◽  
pp. 295 ◽  
Author(s):  
Jack H. Pascoe ◽  
Robert C. Mulley ◽  
Ricky Spencer ◽  
Rosalie Chapple
Keyword(s):  
Field Study ◽  
Canis Lupus ◽  
Vulpes Vulpes ◽  
Diet Overlap ◽  
Diet Analysis ◽  
Critical Weight ◽  
Blue Mountains ◽  
Eastern Australia ◽  
High Level ◽  
Wild Dogs

South-east Australia has a complex predator assemblage which has historically been vulnerable to introduced species. This is the first Australian field study to analyse samples from members of the families Canidae, Dasyuridae, Strigidae, and Varanidae to describe the diet and diet overlap between these predators. Samples were collected opportunistically and hair and bone analysis was used to identify the content of samples. Wild dogs (Canis lupus) and lace monitors (Varanus varius) predominantly consumed large mammalian prey, which contributed to the high level of diet overlap (Ojk = 0.79) between these two species. Foxes (Vulpes vulpes) and spotted-tailed quolls (Dasyurus maculatus) also had a high level of diet overlap (Ojk = 0.76), a result of their diets containing a high proportion of medium-sized mammals. The diet of wild dogs and foxes showed moderate overlap (Ojk = 0.59), and foxes were more likely to prey on species within the critical weight range than on macropods, which made up a high proportion of the diet of wild dogs. These data confirm that significant diet overlap can occur between predators from different taxonomic classes and further investigation of potential competition will be important to ongoing management.

Movements and habitat selection by wild dogs in eastern Victoria

2010 ◽  
Vol 32 (1) ◽  
pp. 23 ◽  
Author(s):  
Alan Robley ◽  
Andrew Gormley ◽  
David M. Forsyth ◽  
Alan N. Wilton ◽  
Danielle Stephens
Keyword(s):  
Habitat Selection ◽  
Home Range ◽  
Global Positioning System ◽  
Canis Lupus ◽  
Home Ranges ◽  
Canis Lupus Familiaris ◽  
Eastern Australia ◽  
Global Positioning ◽  
Wild Dog ◽  
Wild Dogs

To investigate movements and habitat selection by wild dogs we attached satellite-linked global positioning system (GPS) units to nine wild dogs (Canis lupus dingo and Canis lupus familiaris) captured in eastern Victoria in summer 2007. Units estimated locations at 30-min intervals for the first six months and then at 480-min intervals for six more months. DNA testing revealed all these wild dogs to be related. Home ranges of males were almost three times larger than those of females (males: 124.3 km2 ± 56.3, n = 4; females: 45.2 km2 ± 17.3, n = 5) and both sexes preferred subalpine grassland, shrub or woodland at the landscape and home-range scales. Wild dogs were recorded more often than expected within 25 m of roads and less often than expected within 25 m of watercourses. Wild dogs displayed higher-velocity movements with shallow turning angles (generally forwards) that connected spatial and temporal clusters comprising slower-velocity, shorter, and sharper turning movements. One wild dog travelled 230 km in 9 days before returning to its home range and another travelled 105 km in 87 days. The home-range sizes reported in this study are much larger than previously reported in south-eastern Australia. This finding, together with previous studies, suggests that the spatial scale at which wild dog management occurs needs to be reconsidered.

Habitats, diets, and sympatry in snakes: a study from Australia

1977 ◽  
Vol 55 (7) ◽  
pp. 1118-1128 ◽  
Author(s):  
Richard Shine
Keyword(s):  
Species Diversity ◽  
Competitive Exclusion ◽  
Prey Species ◽  
Prey Size ◽  
Empirical Work ◽  
Prey Type ◽  
Published Data ◽  
Potential Prey ◽  
Climatic Regions ◽  
Eastern Australia

Six species of elapid snakes were studied in a highlands region of eastern Australia. Major results were as follows. (1) These snakes are opportunistic feeders, relatively unselective with respect to prey type or prey size. (2) Despite this unselective feeding, over 60% of the diet (by weight) in all species consists of lizards and frogs. Published data show a preponderance of these prey types in Australian snakes as a whole, and I suggest that this is due to the scarcity of other potential prey items (especially small mammals and freshwater fish) in Australia. (3) Sympatry is less common in the elapids studied than among North American snakes in comparable climatic regions. I attribute the scarcity of sympatry among the Australian snakes to the restricted number of prey types available. This argument is supported by previous empirical work which suggests that prey species diversity determines snake species diversity. Observed prey-size differences between sympatric elapid species are consistent with the interpretation of interspecific competitive exclusion.

The diet of the dingo (Canis lupus dingo) in north-eastern Australia with comments on its conservation implications

2011 ◽  
Vol 33 (1) ◽  
pp. 79 ◽  
Author(s):  
L. A. Brook ◽  
A. S. Kutt
Keyword(s):  
Canis Lupus ◽  
Native Species ◽  
Bos Taurus ◽  
Local Population ◽  
European Hare ◽  
Feral Cat ◽  
Critical Weight ◽  
Conservation Implications ◽  
Eastern Australia ◽  
North Eastern

The dingo (Canis lupus dingo and hybrids) is the top mammalian predator on the Australian mainland and is thought to control and suppress populations of native herbivores and smaller mesopredators, including the introduced feral cat (Felis catus). Dingoes have been persecuted as a threat to domestic livestock, and local population decreases have been linked to increasing mesopredator populations, which in turn may cause the decline of small native mammals. There is little data on the dingo’s dietary composition in northern Australia. We examined the diet of dingoes in north-eastern Queensland via scat collection and analysis. A total of 178 scats were examined between 1994 and 2000, comprised of 185 prey items and representing 21 discrete prey types. Native mammal prey was the most frequent dietary component (69.7%), with large- to medium-sized macropods (Macropus spp. and Wallabia bicolor) present in the majority of samples (51.1%). Critical Weight Range species were found in 18.0% of the records. Introduced species such as the European hare/rabbit (Lepus capensis/Oryctolagus cuniculus) and cattle (Bos taurus) were found in smaller amounts (14.6 and 10.1%, respectively). These results suggest that dingoes prey considerably on large- to medium-sized macropods in our study area (north-eastern Australia). Dingo diet tends to differ regionally where dingoes prey on native species that are locally common or abundant. Finally, the diets of the dingo and feral cat do not appear to considerably overlap in our study area, which may have implications for mesopredator suppression.

The immediate impact of 1080 aerial baiting to control wild dogs on a spotted-tailed quoll population

2005 ◽  
Vol 32 (8) ◽  
pp. 673 ◽  
Author(s):  
Gerhard Körtner ◽  
Peter Watson
Keyword(s):  
Rhodamine B ◽  
Canis Lupus ◽  
Canis Lupus Familiaris ◽  
Eastern Australia ◽  
Before And After ◽  
Wild Dog ◽  
Control Association ◽  
Wild Dogs ◽  
The Impact ◽  
Track Counts

In eastern Australia, the spotted-tailed quoll (Dasyurus maculatus) is the species thought to be most likely at risk from aerial baiting with compound 1080 to control wild dogs (Canis lupus familiaris and C. l. dingo). Although it is known that quolls occasionally die of 1080 poisoning, the broader impact on populations remains unresolved. We therefore assessed the impact of a regular aerial baiting campaign on a population of spotted-tailed quolls. Baiting with 1080 meat baits was conducted by the local Wild Dog Control Association and followed the same procedure as in previous years with the exception that the biomarker, rhodamine B, was added to the baits. Prior to the baiting, 36 quolls were trapped and fitted with mortality radio-collars; 31 of these collars were still functional at the time of baiting. Quolls were monitored from a helicopter and on the ground until retrapped 5–9 weeks after baiting. Transmitters were then removed and a sample of vibrissae was taken for rhodamine B analysis. Carcasses found were analysed for 1080. Predator numbers were assessed before and after baiting using track pads across trails. Among the initial 36 radio-collared quolls, nine mortalities were recorded during the course of the study (seven after baiting). Only one of the nine deaths could be directly attributed to 1080 poisoning. In addition, vibrissae from five of the 35 individuals sampled after baiting were marked with rhodamine B, indicating that these individuals had consumed bait, and survived. Consequently, mortality attributable to this particular aerial baiting campaign was low, apparently because few quolls ate bait and most of those that did survived. Track counts for predators indicated a significant decrease in dog and fox numbers after baiting. Cat activity remained unchanged and the number of quoll tracks increased.

scholarly journals Transition from Emotional to Rational Advertising for Food Products on the Romanian Market

2017 ◽  
Vol 50 (1) ◽  
pp. 101-108
Author(s):  
A.F. Jităreanu ◽  
Elena Leonte ◽  
A. Chiran ◽  
Benedicta Drobotă
Keyword(s):  
Urban Areas ◽  
Eating Habits ◽  
Well Being ◽  
Point Of View ◽  
The Body ◽  
Positive Effects ◽  
New Methods ◽  
Brand Advertising ◽  
Tangible Evidence ◽  
Health And Well Being

Abstract Advertising helps to establish a set of assumptions that the consumer will bring to all other aspects of their engagement with a given brand. Advertising provides tangible evidence of the financial credibility and competitive presence of an organization. Persuasion is becoming more important in advertising. In marketing, persuasive advertising acts to establish wants/motivations and beliefs/attitudes by helping to formulate a conception of the brand as being one which people like those in the target audience would or should prefer. Considering the changes in lifestyle and eating habits of a significant part of the population in urban areas in Romania, the paper aims to analyse how brands manage to differentiate themselves from competitors, to reposition themselves on the market and influence consumers, meeting their increasingly varied needs. Food brands on the Romanian market are trying, lately, to identify new methods of differentiation and new benefits for their buyers. Given that more and more consumers are becoming increasingly concerned about what they eat and the products’ health effects, brands struggle to highlight the fact that their products offer real benefits for the body. The advertisements have become more diversified and underline the positive effects, from the health and well - being point of view, that those foods offer (no additives and preservatives, use of natural ingredients, various vitamins and minerals or the fact that they are dietary). Advertising messages’ diversification is obvious on the Romanian market, in the context of an increasing concern of the population for the growing level of information of some major consumer segments.

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