326 research outputs found
Systematics and ecology of Oligodon sublineatus Duméril, Bibron & Duméril, 1854, an endemic snake of Sri Lanka, including the designation of a lectotype
No full textThis is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. The attached file is the published version of the article.NHM Repositor
Two new species of the genus Cylindrophis Wagler, 1828 (Squamata: Cylindrophiidae) from Southeast Asia
No full text© 2015 Amarasinghe et al. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercialNoDerivatives 4.0 International License, which permits unrestricted use for non-commercial and education purposes only, in any medium, provided the original author and the official and authorized publication sources are recognized and properly credited. The official and authorized publication credit sources, which will be duly enforced, are as follows: official journal title Amphibian & Reptile Conservation; official journal website . The attached file is the published version of the article.NHM Repositor
Southern giant petrels AAT
No full textProgress Code: completedStatement: See the referenced paper for more information.The data set is a compilation of all available information on counts of Southern giant petrel populations at three locations in the Australian Antarctic Territory (specifically the Frazier Islands, Giganteus Island and Hawker Island).<br/><br/>Data (location, date, count, count unit, method, collator, reference) were gathered from the published literature. Where questions arose about the data, e.g. when the methods were unclear, we attempted to contact the collators of the information in person to verify when and how the counts were conducted. The difficulty was that even within a season notes could be collated by different personnel. As names were not always noted it was often impossible to establish who had made a certain observation. We searched permit records and also checked station leaders' annual reports, field trip reports, biology logs and any other source of information we could find. Finally, we also obtained the records of banded Southern Giant petrels from the Australian Bird and Bat Banding Scheme (ABBBS, Department for the Environment, Canberra).<br/><br/>All information was entered into a spreadsheet noting dates, counts, units of counts, methods and whether or not they could be verified, as well as any comments made either in the field notes or log books or by researchers who we contacted directly.<br/><br/>The downloadable dataset contains an excel spreadsheet of compiled data, plus a list of all literature sources.<br/><br/>Taken from the abstract of the referenced paper:<br/><br/>The determination of the conservation status for a species at risk of extinction is based largely upon consistent change in the population size. In long-lived species, such as seabirds, long-term monitoring is required to establish the extent of the natural variability in a population and to detect true change. As studies spanning several generations within the same population are rare, researchers may turn to historically collected census information to expand the time frame of their studies. While in principle a valid approach, several limitations need to be considered to use historical information appropriately. Census information, collated from the 1950s until present, of three populations of southern giant petrels Macronectus giganteus in the Australian Antarctic Territory (AAT) is used to highlight potential limitations inherent in historical data. We demonstrate the importance of census time and count units when investigating potential changes in populations. Published accounts indicate that the numbers of southern giant petrels in the AAT have decreased significantly since their discovery and that more recently some recovery has taken place. However, for two of the three populations we could not find evidence supporting a change
Distribution and abundance of breeding seabirds in the AAT
No full textProgress Code: completedStatement: Values provided in temporal coverage are approximate only.Distribution and abundance of breeding seabirds in the AAT.<br/><br/>This dataset comprises a broad range of component datasets derived from ground surveys aerial photography and oblique photography.<br/><br/>Aerial and oblique photography has been used to obtain supplementary information on distribution and abundance of seabirds in the region.<br/><br/>Recent surveys, 2000/01 onwards, have made use of GPS for more precise geographic information on seabird nests and colonies.<br/><br/>At present there are a number of child metadata records attached to this record. See the link above for details
Adelie penguin census from records from 1931 to 2007 AAT region
No full textProgress Code: completedStatement: Each census record is linked to the source of the data.A catalogue of adelie penguin colony census records from 1931 to 2007 and limited geographically to the Australian Antarctic Territory (AAT). The present set is from 40E to Gaussberg (89E).<br/><br/>The census records have been collected and compiled from a literature search
Total flight hours in the Australian Antarctic Territory (AAT) by Australian helicopters and fixed wing aircraft
No full textProgress Code: completedStatement: This indicator is now OBSOLETE. These data are no longer archived in this location, and are therefore not up-to-date.
Fuel used by aircraft is an indication of the kilometers (km) travelled in a particular period. As a side issue, fuel burn rate is used as a selection criterion in the tender evaluation process.
The relationship between hours flown and fuel usage depends upon the type of aircraft used.This indicator is no longer maintained, and is considered OBSOLETE.<br/><br/>INDICATOR DEFINITION<br/>The number of helicopter and fixed wing hours flown and fuel consumed at Casey, Davis, Mawson, Macquarie Island stations and field locations are recorded by Station Leaders on a fortnightly basis and reported to Shipping and Air Operations (SAO).<br/><br/>TYPE OF INDICATOR<br/>There are three types of indicators used in this report:<br/>1.Describes the CONDITION of important elements of a system;<br/>2.Show the extent of the major PRESSURES exerted on a system;<br/>3.Determine RESPONSES to either condition or changes in the condition of a system.<br/><br/>This indicator is one of: PRESSURE<br/><br/>RATIONALE FOR INDICATOR SELECTION<br/>Rotary and fixed wing aircraft are used for the resupply of stations and movement of personnel and equipment to and from remote field locations throughout the Australian Antarctic Territory (AAT). In addition, these aircraft are used for observation flights of animal populations and other aerial survey work. They also contribute towards the total level of emissions in the AAT. Changes in the quantity of hours used and fuel consumed provides an indication of sources of possible change to the level of emissions in the AAT.<br/><br/>DESIGN AND STRATEGY FOR INDICATOR MONITORING PROGRAM<br/>Spatial scale: Flights between stations, field sites and ships.<br/><br/>Frequency: Annual report<br/><br/>Measurement technique: Direct reading of flight logs and purchasing records. SAO staff records the data.<br/><br/>RESEARCH ISSUES<br/>In the future, it is planned to automate the collection of most of this data. Furthermore, the measurement of aircraft fuel usage is the first step towards a more detailed monitoring of our air support operations. The end product will aim to plot geographically (location and elevation) the extent of our aircraft operations. This will not only record our presence in Antarctica, but also will help to validate our own stated policy on flight restrictions and our adherence to the policy.<br/><br/>LINKS TO OTHER INDICATORS<br/>Station fuel usage; field trips; station person days; area protection and management; Incidents resulting in environmental impact
A New Bent-Toed Gecko of the Cyrtodactylus marmoratus Group Reptilia: Gekkonidae) from Obi Island, Indonesia
No full textBased on phylogenetic and morphological evidence, we describe a new species of Cyrtodactylus from Obi Island in the northern Moluccas, Indonesia. The new species is genetically and morphologically allied to the Melanesian species Cyrtodactylus papuensis but is distinguished by its larger body size, fewer midbody scale rows, deep precloacal groove in males, and enlarged nonpored femoral scales and pored precloacal scales arranged in a continuous series. The new species is also genetically divergent from C. papuensis (p-distances of 19.0%–20.1% in the mitochondrial NADH dehydrogenase subunit 2 gene). Four species of Cyrtodactylus are now known from the northern Moluccas, but it is likely additional species remain unrecognized.No Full Tex
Breeding populations of Southern Giant Petrels at Heard Island, the McDonald Islands and within the AAT
No full textProgress Code: completedStatement: This indicator is now OBSOLETE. These data are no longer archived in this location, and are therefore not up-to-date.
Censuses of breeding adults are performed and long term trends are determined. Integration with other long term datasets is currently underway through international collaborations, allowing comparison among sites at regional and ecosystem scales. Some analyses and their interpretations have been published (see bibliography), and current analyses will examine population data as they are compiled.This indicator is no longer maintained, and is considered OBSOLETE.<br/><br/>INDICATOR DEFINITION<br/>The number of breeding pairs of Southern Giant Petrels at Heard Island, the McDonald Islands, and in colonies near Casey, Davis and Mawson stations.<br/><br/>TYPE OF INDICATOR<br/>There are three types of indicators used in this report:<br/>1. Describes the CONDITION of important elements of a system;<br/>2. Show the extent of the major PRESSURES exerted on a system;<br/>3. Determine RESPONSES to either condition or changes in the condition of a system.<br/><br/>This indicator is one of: CONDITION<br/><br/>RATIONALE FOR INDICATOR SELECTION<br/>The breeding population of Southern Giant Petrels is related to resource availability (nesting space and food), behavioural mechanisms (immigration/emigration and breeding effort/success) in addition to climate change and human impacts (including fisheries and human disturbance). Monitoring breeding populations and interpretation of the data provides information on changes in the Antarctic and Subantarctic ecosystems.<br/><br/>DESIGN AND STRATEGY FOR INDICATOR MONITORING PROGRAM<br/>Spatial scale: Colonies near Australian Stations -<br/>Frazier Islands, Casey (lat 66 degrees 16' 54.5' S, long 110 degrees 31' 39.4' E)<br/>Hawker Island, Davis (lat 68 degrees 34' 35.8' S, long 77 degrees 58' 02.6' E)<br/>Giganteus Island, Mawson (lat 67 degrees 36' 09.7' S, long 62 degrees 52' 25.7' E)<br/><br/>Heard Island - (lat 53 degrees 06' 00.0' S, long 73 degrees 31' 59.9' E)<br/><br/>McDonald Islands - (lat 53 degrees 02' 26.2' S, long 72 degrees 36' 00.0' E)<br/><br/>Frequency: Breeding Southern Giant Petrels are easily disturbed. Colonies are visited every 3-5 years to minimise disturbance to breeding birds.<br/><br/>Measurement technique: All colonies are visited and breeding birds are counted from outside the colonies by two personnel performing replicate counts. All breeding individuals in a colony are counted. No birds are disturbed off their nests.<br/><br/>Considerations regarding disturbance associated with census visits are also incorporated into monitoring strategies. The lack of annual census data does not reduce the value of these long-term monitoring programmes.<br/><br/>RESEARCH ISSUES<br/>All Southern Giant Petrel breeding populations in the AAT and at HIMI decreased following their discovery. Southern Giant Petrels breeding on Indian Ocean islands are highly sensitive to human disturbance. Access to breeding colonies is restricted, as are the types of activities permitted. Disturbance from researchers has been implicated in the observed decreases in these populations (Woehler et al. 2001, Woehler et al. in press). Analyses of the long term AAT data suggest that the breeding populations at Hawker Is and at the Frazier Is have recovered following the restrictions on access and activities permitted on breeding islands.<br/><br/>LINKS TO OTHER INDICATOR
Tribunal independence in an age of migration control
No full textThis article examines the structural relationship between the immigration tribunals (Refugee Review Tribunal and Migration Review Tribunal) and the Immigration Department and Minister compared to other tribunals, utilising the Administrative Appeals Tribunal (AAT) as a point of comparison. The immigration tribunals are closely held and have less structural independence than the AAT (except in the AAT's migration jurisdiction). The author examines whether the structural dependence of the immigration tribunals affects their decision-making in normal circumstances and in situations of abuse of executive power; and whether the specific controls in the whole spectrum of immigration decision-making (including the immigration tribunals and the AAT's migration jurisdiction) affect tribunal independence. The author contends that ministerial directions used by the Immigration Minister decrease the decisional independence of tribunal decision-making in the immigration arena for both immigration tribunals and the AAT (within the AAT's migration jurisdiction) by reducing their willingness to question or depart from government policy. Further, the author argues that the structural dependence of the immigration tribunals is more likely to cause a loss of decisional independence of tribunal members compared to the AAT in situations where the Executive abuses its powers
Patients with geriatric syndromes and anti-amyloid therapies: lack of consideration? An exploratory analysis of the literature.
No full textINTRODUCTION
Patients who should benefit from anti-amyloid therapies (AAT) are found across all geriatric settings. Yet, it remains unclear how the use of AAT in patients with geriatric syndromes, such as frailty and polypharmacy, has so far been discussed in the literature.
METHODS
Articles on aducanumab, gantenerumab, lecanemab, donanemab, crenezumab, solanezumab were retrieved in MEDLINE from inception to July 2023. For each article, identified geriatric relevant terms were assigned to five discussion contexts (eligibility of AAT study population, safety, prescription, patient clinical profile, alternative outcomes measurement). Article type and the involvement of geriatric healthcare professionals as an author were further extracted.
RESULTS
Out of 538 articles, 23 (4.27%) were published in journals from the geriatric category, 44 (8.18%) included an author affiliated with a geriatric institution. One hundred and sixteen (21.56%) articles included at least one geriatric relevant term, which were mostly discussed in the context of safety and eligibility. Articles mentioning geriatric syndromes were more frequently authored by a geriatric healthcare professional (p = 0.044).
DISCUSSION
The use of AAT in patients with geriatric syndromes has so far received poor attention in the literature raising concerns on their use in this patient group. The involvement of geriatric healthcare professionals in future studies may increase the relevance of AAT research in patients with geriatric syndromes
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