Distribution and conservation status of the rare plants Melaleuca triumphalis and Stenostegia congesta (Myrtaceae), Victoria River district, northern Australia

2006 ◽  
Vol 54 (7) ◽  
pp. 641 ◽  
Author(s):  
Beth Crase ◽  
Ian D. Cowie ◽  
Carrie R. Michell
Keyword(s):  
National Park ◽  
Conservation Status ◽  
Landscape Scale ◽  
Northern Territory ◽  
Rare Plants ◽  
Habitat Requirements ◽  
Northern Australia ◽  
Digital Elevation ◽  
Rivers And Streams ◽  
Scale Data

Targeted searches of approximately 150 km of cliff lines for two rare sandstone shrubs, Melaleuca triumphalis Craven and Stenostegia congesta A.R.Bean, thought to be restricted to the Victoria River gorge system within Gregory National Park, increased the number of known populations from 3 and 6 to 31 and 37, respectively. Both species occur predominantly in rocky and often fire-protected niches on sandstone cliffs and scree slopes, and are frequently associated with permanent drip-lines and seepage areas. Although their broad habitat requirements are similar, the two species do occur in slightly different niches. The data presented here suggest that M. triumphalis is reasonably fire tolerant, whereas S. congesta appears to be more fire sensitive. Weeds and introduced animals are not thought to pose a threat to these rare species. Models developed using remotely sensed and landscape-scale data (digital elevation models, radiometrics, geology and distance to rivers and streams) suggest that these species may also occur outside Gregory National Park in other areas of the Northern Territory such as on Bullo River and Bradshaw stations and in Keep River National Park. It is suggested that both species be regarded as Vulnerable under the IUCN guidelines.

National Parks and Native Peoples in Northern Canada, Alaska, and Northern Australia

1981 ◽  
Vol 8 (3) ◽  
pp. 207-215 ◽  
Author(s):  
J. E. Gardner ◽  
J. G. Nelson
Keyword(s):  
Land Use ◽  
National Parks ◽  
National Park ◽  
Northern Territory ◽  
Yukon Territory ◽  
Native People ◽  
The Arctic ◽  
Northern Australia ◽  
Native Peoples ◽  
Northern Canada

At the very general level, the aim of this paper is to compare the interaction of national parks and native peoples in Northern Canada (Yukon Territory), Alaska, and the Northern Territory of Australia. Currently these areas are subject to increasing land-use pressures from mining, industrial development, the creation of national parks and related reserves, and native attempts to maintain traditional wildlife and renewable resource use. The study focuses on the interactions between national parks and native peoples on the premise that experiences can be compared and problems encountered in one area but possibly avoided in another.The study begins by briefly describing native land-use issues, land-rights arrangements, and organizations, in the Yukon Territory, central Alaska, and Northern Australia. The national park agencies are described, compared, and shown to differ considerably in institutional character, field of management, control of land, and external links with interest groups such as native peoples. Case-studies of the national parks etc. named Kluane (Yukon), Gates of the Arctic (Alaska), and Kakadu (Northern Territory of Australia), are presented to provide more details on similarities and differences in planning, types of tenure, native subsistence activities, and other factors.In the Yukon Territory, neither the national parks agency nor the native people are highly motivated to interact. In contrast, the park agencies and native people in Alaska and the Northern Territory of Australia recognize mutual benefits from interaction—largely as a result of legislation and policies which encourage cooperation. Native involvement officers now facilitate coordination in the Yukon and Alaska. Park agency native employment programmes are proceeding in all three ‘hinterlands’, while native people can own land on which national parks are established in Alaska and the Australian Northern Territory. Only in Australia are native people known to be directly involved in upperlevel national park management. Potential limitations on native subsistence and associated use of national parks range from moderate to severe, and are only defined clearly in Alaska. Lack of definition leads to confusion in deciding upon native use, while exceedingly precise definition precludes flexibility at the park level.A number of aids to a more mutually satisfactory interaction can be identified. One is motivation, or recognition by both parties that there are advantages to consultation and cooperation. Another, not yet achieved in the Yukon, is a land-claims settlement, stating the legislated rights of native peoples in the ‘hinterlands’ and giving them a land-holding and bargaining status which is comparable with that of government agencies. A third aid is comprehensive systematic and regional planning efforts involving opportunities for informed input from all affected parties. Such planning would provide a forum for consideration of a variety of interests, including national parks and native peoples. Finally, satisfactory interaction on the park site could be assisted by clear yet flexible means of deciding upon acceptable native use of parkland, the conservation of wildlife, and associated economic and cultural factors.

scholarly journals Estimates of abundance and apparent survival of coastal dolphins in Port Essington harbour, Northern Territory, Australia

2014 ◽  
Vol 41 (1) ◽  
pp. 35 ◽  
Author(s):  
Carol Palmer ◽  
Lyndon Brooks ◽  
Guido J. Parra ◽  
Tracey Rogers ◽  
Debra Glasgow ◽  
...  
Keyword(s):  
Population Size ◽  
Conservation Status ◽  
Local Population ◽  
Northern Territory ◽  
Systematic Sampling ◽  
Northern Australia ◽  
Apparent Survival ◽  
Photo Identification ◽  
Population Size Estimates ◽  
Sampling Protocols

Context Three dolphin species occur in coastal waters of monsoonal northern Australia: the Australian snubfin (Orcaella heinsohni), humpback (Sousa sp.) and the bottlenose (Tursiops sp.). Their overall population size and trends are poorly known, and their conservation status has been difficult to resolve, but can be expected to deteriorate with likely increased development pressures. Aims We sought to provide an estimate of abundance, and apparent survival, of the three dolphin species at the largely undeveloped harbour of Port Essington (325 km2), Northern Territory, with repeated sampling over a 2.9-year period. Given increasing obligations to undertake population assessments for impact studies at proposed development sites, we assess the strengths and limitations of a systematic sampling program. Methods We used photo-identification data collected during systematic boat-based transect surveys undertaken from 2008 to 2010 and Pollock’s robust capture–recapture design model. Key results Total abundance estimates for the three species were variable across different sampling periods. The estimated number of individuals in the sampled area varied per sampling episode from 136 (s.e. 62) to 222 (s.e. 48) for snubfin, from 48 (s.e. 7) to 207 (s.e. 14) for humpbacks and from 34 (s.e. 6) to 75 (s.e. 9) for bottlenose dolphins. Apparent survival was estimated for snubfin at 0.81 (s.e. 0.11), humpbacks at 0.59 (s.e. 0.12) and bottlenose at 0.51 (s.e. 0.17) per annum. Key conclusions (1) The values derived here provide some of the only estimates of local population size for these species across monsoonal northern Australia; (2) population-size estimates varied considerably among seasons or sampling episodes; (3) the low apparent survival probabilities indicated that many individuals may move at scales larger than the study area; (4) density of snubfin and humpback dolphins in the present study area exceeded the few other estimates available for these species elsewhere in Australia. Implications The present study provided the first baseline estimates of abundance and apparent survival for three coastal dolphin species in monsoonal northern Australia. Such information is becoming increasingly important as development pressures intensify in coastal areas. Sampling protocols for future monitoring and impact assessment need an enhanced consideration of seasonality and scale issues.

Observations of the 'Critically Endangered' bare-rumped sheathtail bat Saccolaimus saccolaimus Temminck (Chiroptera: Emballonuridae) on Cape York Peninsula, Queensland.

2001 ◽  
Vol 23 (2) ◽  
pp. 185 ◽  
Author(s):  
S Murphy
Keyword(s):  
Papua New Guinea ◽  
Solomon Islands ◽  
Conservation Status ◽  
New Guinea ◽  
Fire Regimes ◽  
Wide Distribution ◽  
Northern Territory ◽  
Critically Endangered ◽  
Northern Australia ◽  
Cape York

THE bare-rumped sheathtailed bat Saccolaimus saccolaimus is a poorly understood species that has a wide distribution covering parts of India, Sri Lanka, Thailand, Myanmar, Malaya, Indonesia, New Guinea, the Solomon Islands and Northern Australia (Bonaccorso 1998). First collected in Australia by De Vis near Cardwell, the current known distribution in Queensland (Qld) extends from Bowen to Cooktown with one isolated specimen collected near Coen on Cape York Peninsula (Hall 1995; Duncan et al. 1999). It has also been recorded in the Alligator River area in the Northern Territory (McKean et al. 1981). The conservation status of S. saccolaimus in Qld has recently been defined as ?Critically Endangered?, and the species has not been recorded anywhere in Australia for at least 18 years (Duncan et al. 1999; Menkhorst and Knight 2001). The likely reasons for the apparent decline are unclear, but may involve land-clearing and changed fire regimes in the coastal zone where it is thought to occur (Duncan et al. 1999). In contrast, Bonaccorso (1998) considers S. saccolaimus to be secure, albeit also poorly known in Papua New Guinea.

scholarly journals The occurrence of the flat-headed cat Prionailurus planiceps in south-east Sumatra

Oryx ◽  
2000 ◽  
Vol 34 (3) ◽  
pp. 222-226 ◽  
Author(s):  
Mark R. Bezuijen
Keyword(s):  
Protected Areas ◽  
National Park ◽  
Conservation Status ◽  
Habitat Requirements ◽  
Museum Specimens ◽  
Lowland Forest ◽  
Swamp Forest ◽  
Peat Swamp Forest ◽  
Riparian Habitats ◽  
Made In

AbstractThree incidental sightings of the flat-headed cat Pnonailurus planiceps, a little-known species, were made in south-east Sumatra. Sightings were on lowland floodplains in two distinct habitats, primary peat swamp forest and secondary lowland forest, the latter suggesting some tolerance to modified habitats. Sightings were along or near waterways. A dead adult male found in Berbak National Park is the first confirmed record for the park. Morphometrics of this individual were consistent with other published measurements for the species. Museum specimens indicate a wide historic distribution in south-east Sumatra. Recent information confirms the species's presence in protected areas of eastern, southern and western Sumatra, although this is mostly limited to presence/absence data, and the conservation status and habitat requirements of the species in south-east Sumatra are unknown. Regional degradation of riparian habitats and the isolation of protected areas warrant concern for the conservation status of the species.

Targeted sampling successfully detects the cryptic and declining arboreal marsupial (Phascogale pirata) in northern Australia

2020 ◽  
Vol 26 (4) ◽  
pp. 395
Author(s):  
Hayley M. Geyle ◽  
Leigh-Ann Woolley ◽  
Hugh F. Davies ◽  
John C. Z. Woinarski ◽  
Brett P. Murphy
Keyword(s):  
Conservation Status ◽  
Study Finding ◽  
Northern Territory ◽  
Northern Australia ◽  
Wet Season ◽  
Breast Height ◽  
Nest Boxes ◽  
Targeted Sampling ◽  
Large Trees ◽  
Survey Effort

The threatened northern brush-tailed phascogale (Phascogale pirata) is one of the most poorly known mammals in Australia. While the few available records indicate a decline in its distribution and abundance, it has not previously been subject to intensive targeted survey. Here, we trialled a specifically tailored methodology for detection of P. pirata, with the aim of informing ongoing survey and monitoring of this species. We deployed 50 motion-sensor cameras (spaced closely together in a grid 500×1000m) on Melville Island (Northern Territory, Australia), between June 2018 and May 2019. Cameras were baited and secured to trees ~3m above the ground on a bracket facing the trunk. We selected for large (>30cm diameter at breast height [DBH]) trunks of the dominant tree species (Eucalyptus miniata, E. tetrodonta and Corymbia nesophila). We detected P. pirata 16 times on eight cameras over the duration of the study, finding that detection was most likely on large (DBH >41.5cm) E. tetrodonta trees during the wet season. Our results indicate that survey effort for this species should be seasonally targeted and focussed on large trees. However, the efficacy of additional methods (nest boxes, Elliott traps) and a comparison between detections on arboreal versus ground-based cameras requires further investigation. We highlight the importance of conducting additional work on this species, as little is known about its ecology, population trends and threats, making it difficult to assess its conservation status. Without more targeted work, P. pirata is at risk of slipping into extinction unnoticed.

scholarly journals Declines in the mammal assemblage of a rugged sandstone environment in Kakadu National Park, Northern Territory, Australia

2018 ◽  
Vol 40 (2) ◽  
pp. 181 ◽  
Author(s):  
M. Ibbett ◽  
J. C. Z. Woinarski ◽  
M. Oakwood
Keyword(s):  
National Park ◽  
Northern Territory ◽  
Northern Australia ◽  
Success Rates ◽  
Sampling Area ◽  
Mammal Species ◽  
Clear Cut ◽  
Mammal Fauna ◽  
The Common ◽  
Intermittent Sampling

There has been marked recent decline in the terrestrial mammal fauna across much of northern Australia, with most documentation of such decline for lowland areas. Here we report changes in the assemblage of small mammals in a rugged sandstone environment (Nawurlandja, in Kakadu National Park) over intermittent sampling between 1977 and 2002. Four native mammal species were commonly recorded in the original sampling: sandstone antechinus (Pseudantechinus bilarni), northern quoll (Dasyurus hallucatus), Arnhem rock-rat (Zyzomys maini) and common rock-rat (Z. argurus). Trap success rates declined significantly for the northern quoll, Arnhem rock-rat and all species combined, but increased for the common rock-rat. Despite being recorded commonly in the initial (1977–79) study, no Arnhem rock-rats were recorded in the most recent (2002) sampling. Trap success rates for northern quoll declined by ~90% from 1977–79 to 2002. The reasons for change are not clear-cut. Notably, all sampling occurred before the arrival of cane toads (Rhinella marina), a factor that has caused severe decline in northern quoll numbers elsewhere. Fire was more frequent in the sampling area in the period preceding the 2002 sampling than it was in the period preceding the initial (1977–79) sampling, and this may have contributed to change in mammal abundance.

Corrigendum to: Estimates of abundance and apparent survival of coastal dolphins in Port Essington harbour, Northern Territory, Australia

2015 ◽  
Vol 42 (4) ◽  
pp. 371
Author(s):  
Carol Palmer ◽  
Lyndon Brooks ◽  
Guido J. Parra ◽  
Tracey Rogers ◽  
Debra Glasgow ◽  
...  
Keyword(s):  
Population Size ◽  
Coastal Waters ◽  
Conservation Status ◽  
Northern Territory ◽  
Systematic Sampling ◽  
Northern Australia ◽  
Apparent Survival ◽  
Impact Studies ◽  
Sampling Program ◽  
Repeated Sampling

Context Three dolphin species occur in coastal waters of monsoonal northern Australia: the Australian snubfin (Orcaella heinsohni), humpback (Sousa sp.) and the bottlenose (Tursiops sp.). Their overall population size and trends are poorly known, and their conservation status has been difficult to resolve, but can be expected to deteriorate with likely increased development pressures. Aims We sought to provide an estimate of abundance, and apparent survival, of the three dolphin species at the largely undeveloped harbour of Port Essington (325km2), Northern Territory, with repeated sampling over a 2.9-year period. Given increasing obligations to undertake population assessments for impact studies at proposed development sites, we assess the strengths and limitations of a systematic sampling program.

scholarly journals Occurrence of the Green Shield-Moss Buxbaumia viridis (Moug.) Brid. in the Bieszczady Mountains of Poland

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 374
Author(s):  
Piotr Brewczyński ◽  
Kamil Grałek ◽  
Piotr Bilański
Keyword(s):  
National Park ◽  
Large Scale ◽  
Conservation Status ◽  
Natura 2000 ◽  
Field Work ◽  
Managed Forests ◽  
Moss Species ◽  
Microhabitat Preferences ◽  
Natura 2000 Site ◽  
Forest District

The small-sized gametophytes and sporophytes of the green shield-moss Buxbaumia viridis (Moug.) Brid. make it difficult to study. However, in Europe, there has been increasing interest in this species in the past few years, mostly as a result of the implementation of the Natura 2000 network. In Poland, B. viridis has only been reported in isolated studies that have been limited in terms of area and the number of participating workers. One of the Polish regions where B. viridis was recently recorded is the Bieszczady Mountains, but there have been no large-scale surveys of that region to date. The objective of the current work was to describe the B. viridis population in the Bieszczady Mountains in terms of its spatial distribution and abundance, investigate its selected microhabitat preferences, and evaluate the conservation status of this moss species within the Natura 2000 site Bieszczady PLC180001. The studied region encompassed 93,490.44 ha, including 69,056.23 ha of managed forests and 24,434.21 ha of forests belonging to the Bieszczady National Park. A preliminary survey was conducted in the Cisna Forest District (forest area of 19,555.82 ha) on 15–17 November 2017, while the main survey was performed in selected forest subcompartments of four forest districts—Baligród, Komańcza, Lutowiska, and Stuposiany—as well as the Bieszczady National Park from 5 to 16 November 2018. The field work consisted of searching for B. viridis sporophytes and setae and recording selected population and locality characteristics. The study led to the discovery of 353 new B. viridis localities in 202 study areas, with 9197 diploid individuals (sporophytes or setae only) growing in 545 microhabitats. The number of B. viridis localities discovered in the Bieszczady Mountains during 17 days of survey in 2017 and 2018 was two times higher than the combined number of localities previously found in Poland over more than 150 years (159 localities). Additionally, the number of sporophytes and setae identified was two times greater than their overall number in previous records. In addition, this study provides information about selected microhabitat preferences and the conservation status of this moss in the Bieszczady Natura 2000 site.

scholarly journals Spatiotemporal Heterogeneity of Ecological Policy Compromises Human Well-Being and Giant Panda Habitat Conservation in Giant Panda National Park

2021 ◽  
Vol 13 (9) ◽  
pp. 5013
Author(s):  
Dan Zhu ◽  
Degang Yang
Keyword(s):  
Environmental Factors ◽  
Socioeconomic Factors ◽  
National Park ◽  
Structural Equation ◽  
Giant Panda ◽  
Conservation Status ◽  
Well Being ◽  
Habitat Conservation ◽  
Spatiotemporal Heterogeneity ◽  
Panda Habitat

Identifying how policy, socioeconomic factors, and environmental factors influence changes in human well-being (HWB) and conservation efficiency is important for ecological management and sustainable development, especially in the Giant Panda National Park (GPNP). In this study, we systematically analyzed the differences in the conservation status of the giant panda habitat and changes in HWB over 15 years in the GPNP, which includes six mountain sites, Minshan (MS), Qionglai (QLS), Xiaoxiangling (XXL), Liangshan (LS), Qinling (QL), and Daxiangling (DXL). Redundancy analyses were used to determine the factors contributing (policy, socioeconomic factors, and environmental factors) to HWB and giant panda habitat conservation (HC). In addition, using a structural equation model (SEM), we investigated the relationship between the aforementioned three factors and their direct and indirect effects on HWB and HC. The results indicated that there was spatiotemporal heterogeneity of HWB and HC in our study area. There was an increasing number of plant species as well as an increased number of giant panda in GPNP. Generally, HWB in 2015 showed an increasing trend compared with that in 2000. Socioeconomic factors (23.6%) have the biggest influence on HWB and HC, followed by policy (23.2%) and environmental factors (19.4%). Conservation policy had a significantly positive influence on HWB (0.52), while it negatively influenced HC (−0.15). Socioeconomic factors significantly negatively influenced HWB (−0.38). The formulation and implementation of policies to promote economic development will contribute to the protection of giant pandas and their habitat. Our results provide insight on the conservation status of the giant panda habitat, HWB, and factors influencing them in different mountain sites in the GPNP, as well as having implications for the future management of the GPNP.

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