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Статті в журналах з теми "Hydrology Victoria French Island"
1
Johnston, M. J., M. J. Shaw, A. Robley, and N. K. Schedvin. "Bait uptake by feral cats on French Island, Victoria." Australian Mammalogy 29, no. 1 (2007): 77. http://dx.doi.org/10.1071/am07009.
Повний текст джерелаАнотація:
Management of feral cat (Felis catus) populations is currently limited by the lack of a control technique that is cost-effective, target-specific and suitable for broad-scale application. This paper describes two non-toxic bait acceptance trials undertaken on French Island in Western Port, Victoria in south?eastern Australia. Moist meat baits were injected with the marker Rhodamine B (RB), and surface distributed along the existing road and firebreak network. Subsequent trapping of feral cats facilitated collection of whiskers, which were analysed using ultraviolet fluorescence microscopy for the presence of RB marking. Twenty-four and forty-seven cats respectively were recovered in each trial with fifty per cent of these individuals found to have consumed at least one bait in either trial. Results are discussed with reference to the development of a felid-specific toxicant baiting technique.
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Martin, R. W. "Overbrowsing, and decline of a population of the koala, Phascolarctos cinereus, in Victoria. II. Population condition." Wildlife Research 12, no. 3 (1985): 367. http://dx.doi.org/10.1071/wr9850367.
Повний текст джерелаАнотація:
Juvenile and sub-adult koalas from a population at Walkerville, Victoria, which was severely defoliating its preferred food trees, had significantly lower growth rates than animals from a population on French Island, Victoria. Mature males from Walkerville were significantly smaller than French Island males in most age classes. There was no significant difference between the body weights of mature females of the 2 populations. Haematological tests on the females showed that nutritionally induced anaemia was significant in the Walkerville animals by Jan. 1981. Heavy tick loads probably exacerbated the effects of the food shortage on the animals' condition, but were not the cause of the anaemia. The low fertility rate of the Walkerville females appeared to be due to their poor nutritional state and to reproductive tract disease.
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Frankham, Greta J., Robert L. Reed, Terry P. Fletcher, and Kath A. Handasyde. "Population ecology of the long-nosed potoroo (Potorous tridactylus) on French Island, Victoria." Australian Mammalogy 33, no. 1 (2011): 73. http://dx.doi.org/10.1071/am10051.
Повний текст джерелаАнотація:
The elusive nature of the long-nosed potoroo (Potorous tridactylus) has hindered the collection of long-term data for this threatened species. Between June 2005 and May 2009, data on the ecology of a wild population of long-nosed potoroos located on French Island, Victoria, were collected during a series of research projects. Over this period, 33 individual potoroos were trapped a total of 251 times. Up to nine individuals were known to be alive at once on the 15-ha study site of mature remnant native forest. Adult potoroos showed high site fidelity and significant sexual size dimorphism, with males heavier and having longer head and pes lengths than females. Congruent with other studies, we found no evidence of seasonality in breeding. Births occurred in every month of the year and the testis volume of males did not vary throughout the year. In contrast to previous studies, however, we did not observe peaks in breeding activity. Our research and review of existing literature suggests that the ecology of the long-nosed potoroo is strongly influenced by local environmental conditions and emphasises the need to consider long-term and site-specific data when developing management strategies to conserve this ecologically important species.
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Legione, Alistair R., Jemima Amery-Gale, Michael Lynch, Leesa Haynes, James R. Gilkerson, Fiona M. Sansom, and Joanne M. Devlin. "Chlamydia pecorum Infection in Free-ranging Koalas (Phascolarctos cinereus) on French Island, Victoria, Australia." Journal of Wildlife Diseases 52, no. 2 (April 28, 2016): 426–29. http://dx.doi.org/10.7589/2015-10-276.
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TAYLOR, ANDREA C., JENNY MARSHALL GRAVES, NEIL D. MURRAY, STEPHEN J. O'BRIEN, N. YUHKI, and BILL SHERWIN. "Conservation genetics of the koala (Phascolarctos cinereus): low mitochondrial DNA variation amongst southern Australian populations." Genetical Research 69, no. 1 (February 1997): 25–33. http://dx.doi.org/10.1017/s0016672397002607.
Повний текст джерелаАнотація:
Koala (Phascolarctos cinereus) populations in southern Australia have a history of bottlenecks – earlier this century the species became extinct in South Australia, and almost so in Victoria. Subsequently large numbers of animals from island populations (founded from very few animals) have been translocated back to mainland sites and to other islands in the region. As part of a larger study of the genetic structure of koala populations in southern Australia, we have undertaken a survey of mitochondrial DNA restriction fragment length polymorphism (mtDNA-RFLP) variability. Genomic DNA from 91 koalas from five populations was examined using 23 restriction enzymes, and mtDNA fragments were detected using a domestic cat full-length mtDNA clone. Only one of the enzymes, TaqI, revealed polymorphism – a relatively low amount of variation compared with other mammals, although low mtDNA-RFLP variation has also been reported in Queensland koalas. French Island and populations established predominantly from French Island immigrant koalas, either directly or via other island populations, were indistinguishable by haplotype frequencies. The mtDNA data are thus consistent with the interpretation that the koala translocation programme has homogenized gene frequencies amongst those populations involved. South Gippsland is not recorded as having received translocated koalas directly, and has significantly different mtDNA-RFLP haplotype frequencies from all other populations examined. The fact that this distinction was not previously observed in nuclear gene frequencies may reflect predominantly male-mediated dispersal in koalas.
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McLean, Natasha, and Kathrine A. Handasyde. "Sexual maturity, factors affecting the breeding season and breeding in consecutive seasons in populations of overabundant Victorian koalas (Phascolarctos cinereus)." Australian Journal of Zoology 54, no. 6 (2006): 385. http://dx.doi.org/10.1071/zo06015.
Повний текст джерелаАнотація:
It is important to have knowledge of basic population parameters to understand how these vary geographically and temporally and how they contribute to population dynamics. This paper investigates three of these parameters in Victorian koala populations: sexual maturity, aspects of the breeding season, and the continuity of individuals’ breeding. The investigation was carried out in koalas of known-age in two free-living (Redbill Creek on French Island and Brisbane Ranges) and one semi-captive (the Koala Conservation Centre on Phillip Island) population as well as koalas of unknown age in four Victorian populations of overabundant koalas: Mt Eccles and Framlingham in south-west Victoria, French Island in Western Port and Snake Island in south Gippsland. At sexual maturity, female koalas had a mean age (±95% confidence interval) of 24.4 months (23.5–25.3 months), a mean head length of 125 mm (124–127 mm) and a mean body mass of 6.6 kg (6.3–6.8 kg). Only 7.4% of independent females (of unknown age) were carrying young when they weighed less than 6 kg. The breeding season was more restricted in the south-west populations. At Framlingham and Mt Eccles 85% and 91% of births, respectively, occurred between December and March. At Snake and French Islands only 46% and 53% of births, respectively, were recorded in the same period. In the Chlamydia-free population (Red Bill Creek) none of the koalas that were monitored stopped breeding and then resumed breeding in a subsequent season whereas many females from Chlamydia-infected populations (Brisbane Ranges and the Koala Conservation Centre) did so. This variation in reproductive patterns is likely to make an important contribution to the variation in the demography observed in different koala populations.
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Frankham, Greta J., Robert L. Reed, Mark D. B. Eldridge, and Kathrine A. Handasyde. "The genetic mating system of the long-nosed potoroo (Potorous tridactylus) with notes on male strategies for securing paternity." Australian Journal of Zoology 60, no. 4 (2012): 225. http://dx.doi.org/10.1071/zo12064.
Повний текст джерелаАнотація:
The potoroids are a small group of cryptic macropodoid marsupials that are difficult to directly monitor in the wild. Consequently, information regarding their social and mating systems is limited. A population of long-nosed potoroos (Potorous tridactylus) on French Island, Victoria, was monitored from June 2005 to August 2010. Tissue samples were collected from 32 (19 ♂, 13 ♀) independent potoroos and 17 pouch young. We aimed to determine the genetic mating system and identify patterns of paternity through genotyping individuals at 10 microsatellite loci. Additionally, we investigated the importance of body mass and site residency as strategies in securing paternity. Twelve of the 17 pouch young sampled were assigned paternity with confidence to five males. Multiple pouch young were sampled from two long-term resident females, one of which had 10 pouch young sired by multiple partners, with some repeat paternity, while the other had three young sired by one male, suggesting that the mating system is not entirely promiscuous. Sires were recorded on site for significantly longer periods than non-sires but were not significantly larger than non-sires at conception. This suggests that sires employ strategies other than direct competition, such as scramble competition, to secure paternity in P. tridactylus.
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Davies, Christopher, Wendy Wright, Faye Wedrowicz, Carlo Pacioni, and Fiona E. Hogan. "Delineating genetic management units of sambar deer (." Wildlife Research 49, no. 2 (October 20, 2021): 147–57. http://dx.doi.org/10.1071/wr19235.
Повний текст джерелаАнотація:
Abstract Context Invasive species are major drivers of biodiversity loss, requiring management to reduce their ecological impacts. Population genetics can be applied to delineate management units, providing information that can help plan and improve control strategies. Aim The present study aims to use a genetic approach to test the existence of three previously proposed sambar deer populations in south-eastern Australia. In doing so, the study aims to delineate management units of sambar deer in south-eastern Australia. Methods Sambar deer DNA was sourced opportunistically from tissue samples and targeted scat collection. Samples were collected from three areas in Victoria, south-eastern Australia: Mt Cole (MC), French Island (FI) and eastern Victoria (EV). Contemporary population structure was assessed using a suite of 11 polymorphic microsatellite markers. The number of maternal sambar deer lineages in south-eastern Australia was investigated through sequencing of the mitochondrial (mt)DNA control region. Key results Three distinct genetic clusters were identified. Differentiation among inferred clusters was found to be high, with FST ranging from 0.24 between EV and FI clusters and 0.48 between MC and FI clusters. Two mtDNA haplotypes were identified; R.u1 was found throughout EV and FI, and R.u2 was unique to MC. DNA isolated from scats provided reliable data and proved critical for sampling areas where hunting and culling of deer are not generally undertaken. Conclusions Three genetically distinct sambar deer management units in south-eastern Australia are defined – MC, FI and EV. Sambar deer control strategies should be applied to each management unit independently. This may be difficult or infeasible for the EV management unit, which is large and geographically complex. Further research may help identify additional fine-scale genetic structure in EV, allowing smaller, more practicable management units to be identified. Implications Genetic data can be used to identify management units for invasive species, which will be critical for the development of future management strategies and improving control operations. The approach outlined here could also be applied to improve the management of other introduced deer species in south-eastern Australia.
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"Bactrocera tryoni. [Distribution map]." Distribution Maps of Plant Pests, no. 2nd revision) (August 1, 1999). http://dx.doi.org/10.1079/dmpp/20066600110.
Повний текст джерелаАнотація:
Abstract A new distribution map is provided for Bactrocera tryoni (Froggatt) Diptera: Tephritidae Attacks fruits (including fruit-vegetables such as tomato (Lycopersicon esculentum) and Capsicum). Information is given on the geographical distribution in NORTH AMERICA, USA, California, SOUTH AMERICA, Easter Island, OCEANIA, Australia, New South Wales, Northern Territory, Queensland, South Australia, Victoria, Western Australia, French Polynesia, New Caledonia, New Zealand, Papua New Guinea.
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"Spoladea recurvalis. [Distribution map]." Distribution Maps of Plant Pests, December (August 1, 1991). http://dx.doi.org/10.1079/dmpp/20056600527.
Повний текст джерелаАнотація:
Abstract A new distribution map is provided for Spoladea recurvalis (Fabricius) (= Hymenia recurvalis(Fabricius), (H. fascialis Cramer)) Lepidoptera: Pyralidae Beet webworm, Hawaiian beet webworm. Attacks sugar-beet, spinach, Amaranthus Information is given on the geographical distribution in EUROPE, Cyprus, AFRICA, Algeria, Angola, Ascension Island, Canary Islands, Cameroon, Comoros, Congo, Egypt, Equatorial, Guinea, Ethiopia, Gambia, Ghana, Ivory Coast, Kenya, Lesotho, Liberia, Madagascar, Malawi, Mali, Mauritius, Mozambique, Niger, Nigeria, Réunion, Rodriguez Island St. Helena, Sao, Tomé, & Principé, Senegal, Seychelles, Sierra Leone, Socotra Island, Somalia, South Africa, Sudan, Tanzania, Uganda, Zaire, Zambia, Zimbabwe, ASIA, Andaman Islands, Bangladesh, Bahrain, Brunei, Chagos Islands, China, Guangdong, Shandong, India, Assam, Bihar, Delhi, Gujarat, Haryana, Karnataka, Kerala, Maharashtra, Meghalaya, Rajasthan, Tamil Nadu, Uttar Pradesh, West Bengal, Indonesia, Java, Kalimantan, Moluccas, Sulawesi, Sumatra, Sumba, Timor, Iraq, Iran, Israel, Japan, Korea, Lebanon, Malaysia, Peninsular Malaysia, Sabah, Sarawak, Maldive Islands, Myanmar, Nepal, Nicobar Islands, Oman, Pakistan, Philippines, Saudi Arabia, Singapore, Sri Lanka, Syria, Taiwan, Thailand, Vietnam, Yemen Republic, AUSTRALASIA and PACIFIC ISLANDS, Australia, New South Wales, Northern, Territory, Queensland, Victoria, Western Australia, Christmas Island, Cook Islands, Easter Island, Fiji, Hawaii, Marianas Islands, Marquesas Islands, New Britain, New Caledonia, New Zealand, Norfolk Island, Papua New Guinea, Phoenix Islands, Pitcairn Island, Samoa, American, Western Samoa, Society Islands, Solomon Islands, Tubuai Islands, Vanuatu, Wallis Islands, NORTH AMERICA, USA, Florida, New Jersey, South Carolina, Virginia, CENTRAL AMERICA and CARIBBEAN, Anguilla, Antigua, Bahamas, Barbados, Bermuda, Costa Rica, Cuba, Dominican Republic, Jamaica, Montserrat, Panama, Puerto Rico, St. Vincent, Trinidad, Virgin Islands, SOUTH AMERICA, Brazil, Chile, Colombia, French Guiana, Galapagos Islands, Paraguay, Peru, Surinam, Venezuela.
Частини книг з теми "Hydrology Victoria French Island"
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"Victoria: Westernport Bay, with French Island and Phillip Island." In Encyclopedia of the World's Coastal Landforms, 1359–68. Dordrecht: Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-1-4020-8639-7_238.
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