The Australian zoologist最新文献

Monitoring within-patch, flying season population dynamics of an endangered mire-dwelling dragonfly, Petalura gigantea (Odonata: Petaluridae) 濒危泥地蜻蜓斑蝶的斑块内、飞行季节种群动态监测

The Australian zoologist Pub Date : 2023-11-13 DOI: 10.7882/az.2023.038

Ian R. C. Baird, Shelley Burgin

{"title":"Monitoring within-patch, flying season population dynamics of an endangered mire-dwelling dragonfly, Petalura gigantea (Odonata: Petaluridae)","authors":"Ian R. C. Baird, Shelley Burgin","doi":"10.7882/az.2023.038","DOIUrl":"https://doi.org/10.7882/az.2023.038","url":null,"abstract":"ABSTRACT Understanding within-patch seasonal demographics of patchily distributed odonates is fundamental to understanding aspects of their behaviour, ecology, and landscape-scale population dynamics. Such knowledge underpins effective conservation management and is dependent upon appropriate survey methods. The objective of this study was to understand the within-patch, flying season, population dynamics of imagos of the endangered mire-dwelling dragonfly, Petalura gigantea, using a modified Pollard Walk, a line transect survey technique. Relative abundance of imagos was monitored at nominally weekly intervals, by sex, across the duration of the flying season in six mire patches in the Blue Mountains, New South Wales. There was a preponderance of adult males and a relatively consistent trend in changing relative abundance of adult males compared to females within mire habitat across all surveys, with a marked seasonal peak in male abundance, confirming that surviving adult females generally occupy non-mire habitat other than for reproduction. This study confirmed the utility of this technique to monitor changing relative abundance of adult males within mire patches across a flying season, and potentially, for comparison among years for a separate, longitudinal, landscape-scale study. Successful use of the technique is contingent upon a sound understanding of the species’ habitat preferences and behaviour, with caveats for survey timing and weather protocols, to satisfy minimum requirements for detectability, repeatability, and replicability. The technique could be used, with species- and habitat-specific modifications, for monitoring other patchily distributed odonates, including petalurids, and contribute to their improved conservation management.","PeriodicalId":430003,"journal":{"name":"The Australian zoologist","volume":"5 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136351773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A re-analysis of the taxonomy of yellow-tailed cockatoos within the genus Zanda 黄尾凤头鹦鹉属分类学的再分析

The Australian zoologist Pub Date : 2023-11-10 DOI: 10.7882/az.2023.037

Denis A Saunders, Geoffrey Pickup

引用次数: 0

The breeding biology of the Western Red-tailed Cockatoo Calyptorhynchus escondidus in the wheatbelt of Western Australia 西澳大利亚小麦带西部红尾凤头鹦鹉的繁殖生物学

The Australian zoologist Pub Date : 2023-11-10 DOI: 10.7882/az.2023.036

Denis A Saunders

{"title":"The breeding biology of the Western Red-tailed Cockatoo Calyptorhynchus escondidus in the wheatbelt of Western Australia","authors":"Denis A Saunders","doi":"10.7882/az.2023.036","DOIUrl":"https://doi.org/10.7882/az.2023.036","url":null,"abstract":"ABSTRACT A breeding population of Western Red-tailed Cockatoos Calyptorhynchus escondidus was studied between July 1974 and December 1981 at Nereeno Hill, in the northern wheatbelt of Western Australia. Egg-laying occurred during two clearly defined periods each year; with peaks mid-March to mid-April (Autumn breeding) and early-August to mid-October (Spring breeding). Thirty-two percent of the 459 eggs laid during the study were laid in Autumn and 68% in Spring. Growth rates of nestling wings and body mass were similar between seasons and years. Nearly one third of breeding attempts failed during incubation and 40.7% successfully fledged a nestling. Fledgling survival in the first year was low (17.5%), however, annual survival was higher after the first year; 80.0% after four years. Birds were killed by Wedge-tailed Eagles Aquila audax, shot by farmers, and drowned in stock troughs. Based on evidence from one individually-marked pair, Western Red-tailed Cockatoos may form long lasting pair bonds. While females breed every 12 months, some have bred in both Autumn and Spring seasons. Young Red-tailed Cockatoos remain with their parents up to two years after fledging, and adults may have young from two breeding seasons accompanying them. The breeding biology of Red-tailed Cockatoos is compared with that of closely related species from the genera Calyptorhynchus and Zanda. Threats to the species are loss of mature hollow-bearing trees and almost complete dependence on the seeds of Double Gee Emex australis, an introduced agricultural weed, for food.","PeriodicalId":430003,"journal":{"name":"The Australian zoologist","volume":"95 22","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135092567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The New South Wales Government's Flying-fox Grants Program: changes in project themes across three funding rounds 新南威尔士州政府的飞狐资助计划:在三轮资助中项目主题的变化

The Australian zoologist Pub Date : 2023-11-03 DOI: 10.7882/az.2023.035

Matthew Mo, Joshua Gregory, Libby A. Timmiss, Susy Cenedese

{"title":"The New South Wales Government's Flying-fox Grants Program: changes in project themes across three funding rounds","authors":"Matthew Mo, Joshua Gregory, Libby A. Timmiss, Susy Cenedese","doi":"10.7882/az.2023.035","DOIUrl":"https://doi.org/10.7882/az.2023.035","url":null,"abstract":"ABSTRACT The presence of flying-fox camps in settled areas is often a contentious issue for residents and businesses. The Flying-fox Camp Management Policy 2015 sets the framework for land managers in New South Wales (NSW) to work with communities to manage flying-fox camps. To facilitate this, the NSW Government delivered the Flying-fox Grants Program, which provided funds for land managers to prepare and implement flying-fox management plans and undertake community engagement. There were three funding rounds, the first spanning 2016-18, followed by rounds in 2019 and 2020. Each funding round was fully subscribed, totalling 76 grants for 39 recipient organisations. Compared to the first funding round, there was a progressive decline in grants for works involving vegetation removal to create and maintain cleared buffers in the second and third funding rounds. Furthermore, only one grant was awarded for camp dispersal during the first funding round and none in subsequent funding rounds. Rather, the latter two funding rounds contained a greater representation of grants awarded for works aligned with biodiversity conservation objectives, such as replanting of native vegetation and community education, as well as the emergence of grants sought for heat stress mitigations in the subsequent funding rounds. Grants awarded for preparing flying-fox management plans progressed over the course of the program from predominantly camp-specific plans to region-wide management plans. The latter provide land managers with a streamlined approach that allows new flying-fox camps to be incorporated into management planning as they appear.","PeriodicalId":430003,"journal":{"name":"The Australian zoologist","volume":"29 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135868760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tilting at Windmills II: A review of Australia's Megafires - Biodiversity Impacts and Lessons from 2019-2020 向风车倾斜2:澳大利亚大火回顾——生物多样性的影响和2019-2020年的教训

The Australian zoologist Pub Date : 2023-11-01 DOI: 10.7882/az.2023.033

Harry F. Recher

引用次数: 0

An exploration of the evidence surrounding the identity of the last captive Thylacine 关于最后一只圈养袋狼身份的证据的探索

The Australian zoologist Pub Date : 2023-10-31 DOI: 10.7882/az.2023.034

Gareth Linnard, Stephen R. Sleightholme

{"title":"An exploration of the evidence surrounding the identity of the last captive Thylacine","authors":"Gareth Linnard, Stephen R. Sleightholme","doi":"10.7882/az.2023.034","DOIUrl":"https://doi.org/10.7882/az.2023.034","url":null,"abstract":"The last known captive Thylacine (Thylacinus cynocephalus) died at the Beaumaris Zoo on Hobart's Queen's Domain on the evening of Monday the 7th September 1936. However, within six months of its death the date of its capture was being inaccurately reported. Over the ensuing years there has been much debate and controversy relating to its source, sex, period of display, welfare, and more recently the fate of its remains. Whilst there has been some agreement, significant confusion has been created by the disparate, fragmentary, and often contradictory sources of evidence, with five distinctly exclusive provenances proposed for this specimen. For a species whose extinction was hastened by anthropogenic interventions, we have a moral obligation to preserve as much factual detail as possible about the Thylacine. To this end, the authors have undertaken a thorough review of the hypotheses advanced by Smith (1981) & Paddle (2000); Guiler (1986) & Bailey (2001); Sleightholme et al., 2020; Linnard et al., 2020 and Paddle & Medlock (2023), and have evaluated each against a synthesis of the evidence accrued over the previous 93 years to examine whether a definitive identification and history of the last known captive Thylacine can be determined. The authors found a sufficiently strong correlation between the evidence and the position advanced by Linnard et al., (2020) to maintain that the last captive Thylacine can be identified as the juvenile male captured at Penney's Flats on the Arthur River by 19 year old Roy and 59 year old Dan Delphin on the evening of Monday 7th July 1930.","PeriodicalId":430003,"journal":{"name":"The Australian zoologist","volume":"4 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135871932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monitoring the Green and Golden Bell Frog Litoria aurea on the Crookhaven floodplain at Nowra, New South Wales from 2016-2022 and implications for conservation 2016-2022年监测新南威尔士州Nowra Crookhaven洪泛区的绿和金铃蛙区及其对保护的影响

The Australian zoologist Pub Date : 2023-10-31 DOI: 10.7882/az.2023.029

Garry Daly, Jeff Bryant, Chris Senior, Sophia Muller Sewell, Michael Smith, Michael Mahony

{"title":"Monitoring the Green and Golden Bell Frog Litoria aurea on the Crookhaven floodplain at Nowra, New South Wales from 2016-2022 and implications for conservation","authors":"Garry Daly, Jeff Bryant, Chris Senior, Sophia Muller Sewell, Michael Smith, Michael Mahony","doi":"10.7882/az.2023.029","DOIUrl":"https://doi.org/10.7882/az.2023.029","url":null,"abstract":"ABSTRACT Systematic (time constrained) and targeted surveys were conducted for the Green and Golden Bell Frog Litoria aurea from 2016-2022 on the Crookhaven River - Shoalhaven River floodplains, on the south coast of New South Wales. Systematic nocturnal surveys were conducted at 30-34 sites, three to four times between October and March. Litoria aurea were observed at 20 sites and males were heard calling at five of these. The majority of detections during the breeding season (January - February) were in flooded areas of Terara Swamp and Brundee Swamp, while outside the breeding season more frogs were seen in the catchment of Rotten Creek, the largest tributary of Brundee Swamp. Ten of the systematic sites were ponds constructed for the species as offsets for various developments. Breeding activity (calling males) was detected at two of these offset ponds, but no tadpoles or juveniles were found. The number of frogs detected during systematic surveys varied from eight to forty-four per season, while the number found during diurnal surveys of 136-175 sites annually ranged from zero to thirty-three. Although recruitment occurred in most years the population did not recover to that previously found in 2010-2012. The lack of recovery was influenced by drought, wildfire and a continual loss of habitat from urban developments. Large adult females were seen each survey beside Rotten Creek or nearby ponds suggesting the adult population overwinters within the catchment of this creek and disperse down this catchment to Brundee Swamp to breed in spring. The results from six years monitoring indicate the Crookhaven L. aurea population has not recovered in abundance and distribution since 2010-2012. The three most abundant species of frog Litoria fallax, Litoria peroni and Limnodynastes peroni were also analysed for site preference and population variations over the survey.","PeriodicalId":430003,"journal":{"name":"The Australian zoologist","volume":"118 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135869375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Island Jewels: the natural history of Western Australia's islands. Ian Abbott and Andrew A Burbidge. 2022. Book Reality Experience, Leschenault, Western Australia. 岛屿珠宝:西澳大利亚群岛的自然历史。伊恩·阿博特和安德鲁·A·伯比奇，2022。书现实体验，Leschenault，西澳大利亚。

The Australian zoologist Pub Date : 2023-10-30 DOI: 10.7882/az.2023.032

Dorian Moro

引用次数: 0

An Analysis of the Dawn Vocalisation of a Male Grey Shrikethrush (Colluricincla harmonica) 雄性灰丹顶鸟(Colluricincla harmonica)清晨发声分析

The Australian zoologist Pub Date : 2023-10-27 DOI: 10.7882/az.2023.023

Michael Guppy, Peter Fullagar

{"title":"An Analysis of the Dawn Vocalisation of a Male Grey Shrikethrush (Colluricincla harmonica)","authors":"Michael Guppy, Peter Fullagar","doi":"10.7882/az.2023.023","DOIUrl":"https://doi.org/10.7882/az.2023.023","url":null,"abstract":"ABSTRACT The vocalisations of the Grey Shrikethrush are loud, clear, pleasing to the ear, and a stand-out feature of the bird song in areas in which they occur. However, data on these vocalisations in the literature are sparse, as are any attempts at either quantitative or qualitative analysis. Consequently, almost nothing is known about the character of this very obvious song. We made eight recordings of the dawn song of a male individual at the start of the breeding season on the south-east coast of Australia, in spotted gum forest, 350 km south of Sydney. The song comprised discreet groups of notes which we call syllables. The syllables are sung about every 5-10 seconds, and the individual produced 20 different syllables over the course of the eight recordings. Various analyses revealed that new syllables were added gradually over the recording period, and reached a maximum number at the sixth recording, nine days after the first recording. The frequency of use of particular syllables varied markedly, it was common for some syllables to be used as repeats, particular heterogeneous syllable couplets were commonly used as alternations, and the sequence of syllables could be remarkably similar between different recordings. We suggest a way forward to determine whether these patterns are a common feature of the vocalisations of this species.","PeriodicalId":430003,"journal":{"name":"The Australian zoologist","volume":"270 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136262109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bird species richness and abundance in remnant eucalypt forest on the Southern Tablelands of New South Wales: A removal experiment 新南威尔士州南部高地桉树残林鸟类物种丰富度和丰度:迁移实验

The Australian zoologist Pub Date : 2023-10-23 DOI: 10.7882/az.2023.031

Harry F. Recher

引用次数: 0