Search Results for isolation

... for consumption. We determined the effect of raising striped marsh frog ( Limnodynastes peronii ) tadpoles in isolation by comparing larval growth, size at metamorphosis and jumping distance at metamorphosis between full siblings raised in isolation, at low density and at high density. As expected, tadpoles...

... hybridisation and allopatry in the region of the Einasleigh Uplands and Burdekin-Lynd divide, northeastern Queensland Emu 86 87 110 Ford, J. 1987. Minor isolates and minor geographical barriers in avian speciation in continental Australia. Emu 87: 90-102. Minor isolates and minor geographical...

... Greater Glider population at Seven Mile Beach National Park (NP) is isolated as a consequence of clearing for agriculture but the population did not decline during the survey period. Greater Glider populations in Conjola NP, the Jervis Bay area, Meroo NP and Murramarang NP suffered severe declines...

..., for platypuses Ornithorhynchus anatinus in the Seabrook Creek Catchment in northwest Tasmania. This study detected 10 previously identified alleles and two previously unreported alleles at the MHC Class II DZB locus in 18 platypuses from the Seabrook Creek Catchment. An additional sequence isolated from two...

... surveys in documenting species richness in remote locations. Furthermore, we provide morphological and ecological data and discuss this record in the contexts of geographic variation and the high number of isolated reptile populations and endemism seen on the Cape Range peninsula. * Corresponding...

...Brett A. Summerell ABSTRACT The majority of Australia's unique flora has evolved in isolation separated from many of the world's major plant pathogens. As these pathogens have made their way into Australia the impact on plant species, ecological communities and the fauna that depends on them has...

... restricted to cool, moist habitats are less exposed to the threat of wildfire, they had the highest sensitivity scores. This is due to their typically low fecundity, reliance on micro-refugia away from water for reproduction and shelter, and small, isolated distributions. The group considered least sensitive...

... for this species, based on the objective of establishing at least three isolated, viable populations. The survey was conducted during 1997-1999 across 18 sites based on historic and current records of the species, and habitat suitability. Bell frogs were detected at eight sites, four of which were on public land...

... for this loss are unclear but may be due to a combination of factors including isolation of the reserve by urban development and highway upgrades, a lack of fire for 40 years, competition for food with the local population of the Australian Brush-turkey Alectura lathami , prolonged drought and possibly...

... forests and adjacent dense vegetation, occupying a total area of ~150 km 2 . Here, we document a newly discovered and seemingly isolated population at the north-eastern extent of its known mainland distribution. We visited Lobethal Bushland Park from 2013–2018 and observed snakes of varying age and size...

... of birds to logging of a small, relatively isolated woodland remnant in a landscape dominated by agriculture, with a focus on declining woodland birds. Approximately two thirds of a 120 ha cypress-eucalypt woodland remnant was selectively logged. Eighty bird species in total were recorded 2–3½ years after...

..., extending the species’ range 140 km north-east of the nearest known population in South Australia. Suitable spinifex habitat for H. millewae is highly isolated and small in extent on the Barrier Range, and the species may qualify for listing as a threatened species in NSW. I discuss the cause of apparent...

... Corridor and Audley in the Royal National Park appear to have occurred recently. To date, breeding in southern Sydney has only been confirmed at Yeramba Lagoon. A range of removal techniques have been successfully applied to eradicate isolated incursions in Brisbane and Melbourne. However, these options...

...Catherine J Price; Alan Morris; Garon Staines; Robert Payne; Jane Smith ABSTRACT Long-term monitoring of threatened species often reveals processes undermining population recovery that may not be evident over shorter timeframes. When populations are small and isolated, normal behaviours...

... was largely dry and had only small isolated pools. We found 53 invertebrate taxa including the larvae of the dragonfly Austrogynacantha heterogena and one vertebrate species (larvae of the frog Litoria rubella ) in the pool-water samples. Artificial inundation of the lake sediment samples under laboratory...

...Harry F. Recher, FRZS, AM ABSTRACT Australia's system of conservation reserves is inadequate to conserve continental biodiversity. Reserves are small, isolated, and unrepresentative of continental ecosystems to the extent that entire groups of organisms, such as nomadic and migratory birds...

.... It is estimated that in an average summer period, there would be ≯40,000 frogs killed on the 4-km span of road through the heathland habitat. That is, ≯10,000 road-kills of each of the Wallum Sedge Frog and Wallum Froglet. Research is needed to ascertain how severe this impact is on these isolated populations...