REVIEWS Edited by J
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Shining Bronze-Cuckoo Associating with and Imitating Alarm Call of Chestnut-Rumped Heathwren
42 AUSTRALIAN FIELD ORNITHOLOGY 2006, 23, 42–45 Shining Bronze-Cuckoo Associating with and Imitating Alarm Call of Chestnut-rumped Heathwren DANNY I. ROGERS1,2, KEN G. ROGERS2 and JOAN SANDBRINK3 1Johnstone Centre, Charles Sturt University, P.O. Box 789, Albury, New South Wales 2640 ([email protected]) 2340 Nink’s Road, St Andrews, Victoria 3761 3Deceased Summary We describe an observation of a juvenile Shining Bronze-Cuckoo Chrysococcyx lucidus being attended by a pair of Chestnut-rumped Heathwrens Hylacola pyrrhopygia, apparently the first record of this cuckoo–host association. An alarm call given by the young Cuckoo appeared identical to that of the female Heathwren, and we suggest that this was a case of vocal mimicry. Introduction Host specificity of brood parasites varies considerably, from generalists such as cowbirds Molothrus, which will parasitise most small passerines potentially available, to others that are specialised to parasitise one particular host species (e.g. some of the whydahs of the genus Vidua: Campbell & Lack 1985). Australian representatives of the bronze-cuckoo genus Chrysococcyx appear to be selective in their choice of hosts. Although each species has been found parasitising a number of passerine species, it has been possible to identify preferred biological hosts for all (Brooker & Brooker 1989). Similarities between egg and nestling patterning of cuckoos and their hosts have long been thought to play a role in the success of parasitism attempts (Gill 1983; Brooker & Brooker 1989), and it has also been suggested that juvenile Chrysococcyx species may imitate the nestling calls of their hosts (Courtney 1967; McLean & Waas 1987). -
Innovative Foraging by the House Sparrow Passer Domesticus
46 AUSTRALIAN FIELD ORNITHOLOGY 2005, 22, 46--47 Innovative Foraging by the House Sparrow Passer domesticus NEIL SHELLEY 16 Birdrock Avenue, Mount Martha, Victoria 3934 (Email: [email protected]) Summary This note describes an incidental observation of House Sparrows Passer domesticus foraging for insects trapped within the engine bay of motor vehicles in south-eastern Australia. Introduction The House Sparrow Passer domesticus is commensal with man and its global range has increased significantly recently, closely following human settlement on most continents and many islands (Long 1981, Cramp 1994). It is native to Eurasia and northern Africa (Cramp 1994) and was introduced to Australia in the mid 19th century (Biakers et al. 1984, Schodde & Tidemann 1997, Pizzey & Knight 1999). It is now common in cities and towns throughout eastern Australia (Biakers et al. 1984, Schodde & Tidemann 1997, Pizzey & Knight 1999, Barrett et al. 2003), particularly in association with human habitation (Schodde & Tidemann 1997), but is decreasing nationally (Barrett et al. 2003). Observation On 13 January 2003 at c. 1745 h Eastern Summer Time, a small group of House Sparrows was observed foraging in the street outside a restaurant in Port Fairy, on the south-western coast of Victoria (38°23' S, 142°14' E). Several motor vehicles were angle-parked in the street, nose to the kerb, adjacent to the restaurant. The restaurant had a few tables and chairs on the footpath for outside dining. The Sparrows appeared to be foraging only for food scraps, when one of them entered the front of a parked vehicle and emerged shortly after with an insect, which it then consumed. -
Disaggregation of Bird Families Listed on Cms Appendix Ii
Convention on the Conservation of Migratory Species of Wild Animals 2nd Meeting of the Sessional Committee of the CMS Scientific Council (ScC-SC2) Bonn, Germany, 10 – 14 July 2017 UNEP/CMS/ScC-SC2/Inf.3 DISAGGREGATION OF BIRD FAMILIES LISTED ON CMS APPENDIX II (Prepared by the Appointed Councillors for Birds) Summary: The first meeting of the Sessional Committee of the Scientific Council identified the adoption of a new standard reference for avian taxonomy as an opportunity to disaggregate the higher-level taxa listed on Appendix II and to identify those that are considered to be migratory species and that have an unfavourable conservation status. The current paper presents an initial analysis of the higher-level disaggregation using the Handbook of the Birds of the World/BirdLife International Illustrated Checklist of the Birds of the World Volumes 1 and 2 taxonomy, and identifies the challenges in completing the analysis to identify all of the migratory species and the corresponding Range States. The document has been prepared by the COP Appointed Scientific Councilors for Birds. This is a supplementary paper to COP document UNEP/CMS/COP12/Doc.25.3 on Taxonomy and Nomenclature UNEP/CMS/ScC-Sc2/Inf.3 DISAGGREGATION OF BIRD FAMILIES LISTED ON CMS APPENDIX II 1. Through Resolution 11.19, the Conference of Parties adopted as the standard reference for bird taxonomy and nomenclature for Non-Passerine species the Handbook of the Birds of the World/BirdLife International Illustrated Checklist of the Birds of the World, Volume 1: Non-Passerines, by Josep del Hoyo and Nigel J. Collar (2014); 2. -
NSW Vagrant Bird Review
an atlas of the birds of new south wales and the australian capital territory Vagrant Species Ian A.W. McAllan & David J. James The species listed here are those that have been found on very few occasions (usually less than 20 times) in NSW and the ACT, and are not known to have bred here. Species that have been recorded breeding in NSW are included in the Species Accounts sections of the three volumes, even if they have been recorded in the Atlas area less than 20 times. In determining the number of records of a species, when several birds are recorded in a short period together, or whether alive or dead, these are here referred to as a ‘set’ of records. The cut-off date for vagrant records and reports is 31 December 2019. As with the rest of the Atlas, the area covered in this account includes marine waters east from the NSW coast to 160°E. This is approximately 865 km east of the coast at its widest extent in the south of the State. The New South Wales-Queensland border lies at about 28°08’S at the coast, following the centre of Border Street through Coolangatta and Tweed Heads to Point Danger (Anon. 2001a). This means that the Britannia Seamounts, where many rare seabirds have been recorded on extended pelagic trips from Southport, Queensland, are east of the NSW coast and therefore in NSW and the Atlas area. Conversely, the lookout at Point Danger is to the north of the actual Point and in Queensland but looks over both NSW and Queensland marine waters. -
The Herring Gull Complex (Larus Argentatus - Fuscus - Cachinnans) As a Model Group for Recent Holarctic Vertebrate Radiations
The Herring Gull Complex (Larus argentatus - fuscus - cachinnans) as a Model Group for Recent Holarctic Vertebrate Radiations Dorit Liebers-Helbig, Viviane Sternkopf, Andreas J. Helbig{, and Peter de Knijff Abstract Under what circumstances speciation in sexually reproducing animals can occur without geographical disjunction is still controversial. According to the ring species model, a reproductive barrier may arise through “isolation-by-distance” when peripheral populations of a species meet after expanding around some uninhabitable barrier. The classical example for this kind of speciation is the herring gull (Larus argentatus) complex with a circumpolar distribution in the northern hemisphere. An analysis of mitochondrial DNA variation among 21 gull taxa indicated that members of this complex differentiated largely in allopatry following multiple vicariance and long-distance colonization events, not primarily through “isolation-by-distance”. In a recent approach, we applied nuclear intron sequences and AFLP markers to be compared with the mitochondrial phylogeography. These markers served to reconstruct the overall phylogeny of the genus Larus and to test for the apparent biphyletic origin of two species (argentatus, hyperboreus) as well as the unex- pected position of L. marinus within this complex. All three taxa are members of the herring gull radiation but experienced, to a different degree, extensive mitochon- drial introgression through hybridization. The discrepancies between the mitochon- drial gene tree and the taxon phylogeny based on nuclear markers are illustrated. 1 Introduction Ernst Mayr (1942), based on earlier ideas of Stegmann (1934) and Geyr (1938), proposed that reproductive isolation may evolve in a single species through D. Liebers-Helbig (*) and V. Sternkopf Deutsches Meeresmuseum, Katharinenberg 14-20, 18439 Stralsund, Germany e-mail: [email protected] P. -
CROWNED CORMORANT | Microcarbo Coronatus (Phalacrocorax Coronatus)
CROWNED CORMORANT | Microcarbo coronatus (Phalacrocorax coronatus) J Kemper | Reviewed by: T Cook; AJ Williams © Jessica Kemper Conservation Status: Near Threatened Southern African Range: Coastal Namibia, South Africa Area of Occupancy: 6,700 km2 Population Estimate: 1,200 breeding pairs in Namibia Population Trend: Stable to slightly increasing Habitat: Coastal islands and rocks, protected mainland sites, artificial structures, inshore marine waters Threats: Disturbance, entanglement in human debris and artificial structures, predation by gulls and seals, pollution from oiling 152 BIRDS TO WATCH IN NAMIBIA DISTRIBUTION AND ABUNDANCE TABLE 2.5: A resident species with some juvenile dispersal, this small Number of Crowned Cormorant breeding pairs at individu- cormorant is endemic to south-west Namibia and west al breeding localities in Namibia (listed north to south), esti- to south-western South Africa. It has a very restricted mated from annual peaks of monthly nest counts at Mercu- ry, Ichaboe, Halifax and Possession islands, and elsewhere range along the coastline (Crawford 1997b), occupying an from opportunistic counts, not necessarily done during peak area of about 6,700 km2 in Namibia (Jarvis et al. 2001). It breeding (Bartlett et al. 2003, du Toit et al. 2003, Kemper et usually occurs within one kilometre of the coast, and has al. 2007, MFMR unpubl. data). not been recorded more than 10 km from land (Siegfried et al. 1975). It breeds at numerous localities in Namibia Number of Date of most and South Africa. In Namibia, it is known to breed at 12 breeding recent reliable islands, five mainland localities and one artificial structure, Breeding locality pairs estimate from Bird Rock Guano Platform near Walvis Bay to Sinclair Bird Rock Platform 98 1999/2000 Island (Table 2.5: Bartlett et al. -
SEABIRDS RECORDED at the CHATHAM ISLANDS, 1960 to MAY 1993 by M.J
SEABIRDS RECORDED AT THE CHATHAM ISLANDS, 1960 TO MAY 1993 By M.J. IMBER Science and Research Directorate, Department of Conservation, P. 0. Box 10420, Wellington ABSTRACT Between 1960 and hlay 1993,62 species of seabirds were recorded at Chatham Islands, including 43 procellariiforms, 5 penguins, 5 pelecaniforms, and 9 hi.Apart &om the 24 breeding species, there were 14 regular visitors, 13 stragglers, 2 rarely seen on migration, and 9 found only beach-cast or as other remains. There is considerable endemism: 8 species or subspecies are confined, or largely confined, to breeding at the Chathams. INTRODUCTION The Chatham Islands (44OS, 176.5OW) are about 900 km east of New Zealand, and 560 km and 720 km respectively north-east of Bounty and Antipodes Islands. The Chatham Islands lie on the Subtropical Convergence (Fleming 1939) - the boundary between subtropical and subantarctic water masses; near the eastern end of the Chatham Rise - a shallow (4'500 m) submarine ridge extending almost to the New Zealand mainland. Chatham Island seabirds can feed over large areas of four marine habitats: the continental shelf of the Chatham Rise; the continental slope around it; and subtropical and subantarctic waters to the north, east, and south. The Chatham Islands' fauna and flora have, however, been very adversely affected by human colonisation for about 500 years (B. McFadgen, pers. cornrn.). Knowledge of the seabird fauna of the Chatham Islands gained up to 1960 is siunmarised in Oliver (1930), Fleming (1939), Dawson (1955, 1973), and papers quoted therein. The present paper summarises published and unpublished data on the seabirds of the archipelago from 1960 to May 1993, from when visits to these islands depended on infrequent passages by ship from Lyttelton, South Island, to the present, when a visit involves a 2-h scheduled flight from Napier, Wellington, or Christchurch, six dayslweek. -
ISPL-Insight-Aussie-Backyard-Bird-Count
Integrate Sustainability 18 October 2019 Environment Unique Birds of Australia: The Aussie Backyard Bird Count Samantha Mickan – Environmental Specialist It’s that time of year again, time for the Aussie Backyard Bird Count (Backyard Bird Count). Now in its 6th year, the Aussie Backyard Bird Count is occurring between 21st till the 27th of October and is facilitated by Birdlife Australia. Over the course the week participants are encouraged to observe birds around them for 20 minutes using the Aussie Backyard Bird Count app. What is cool is you don’t have to stay in your backyard, you can visit your local pack, nature reserve or head to the beach. Who can’t find 20 minutes, to stop and observe bird occurring in your local area? Who is BirdLife Australia? Birdlife Australia is the largest, independent, non-profit bird conservation organisation in Australia. They run the Backyard Bird Count each year to obtain valuable data on bird communities throughout Australia. The trends extrapolated from this data can be used to get a glimpse into the changes bird populations are undergoing, and subsequently the environment, as Australia’s Unique changes in populations are a reflection of changes in the environment. The count is Birds held in October each year to capture migratory birds which are returning to Australia from the northern hemisphere for nesting, breeding and flocking. Many of these migratory birds are water birds that flock to our coasts where most human populations are situated, making it an ideal time of year for counts. Backyard Bird Count Results 2018 In 2018, 76,918 people in Australia counted 2,751,113 birds over the 7-days period. -
Australia's Biodiversity and Climate Change
Australia’s Biodiversity and Climate Change A strategic assessment of the vulnerability of Australia’s biodiversity to climate change A report to the Natural Resource Management Ministerial Council commissioned by the Australian Government. Prepared by the Biodiversity and Climate Change Expert Advisory Group: Will Steffen, Andrew A Burbidge, Lesley Hughes, Roger Kitching, David Lindenmayer, Warren Musgrave, Mark Stafford Smith and Patricia A Werner © Commonwealth of Australia 2009 ISBN 978-1-921298-67-7 Published in pre-publication form as a non-printable PDF at www.climatechange.gov.au by the Department of Climate Change. It will be published in hard copy by CSIRO publishing. For more information please email [email protected] This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from the Commonwealth. Requests and inquiries concerning reproduction and rights should be addressed to the: Commonwealth Copyright Administration Attorney-General's Department 3-5 National Circuit BARTON ACT 2600 Email: [email protected] Or online at: http://www.ag.gov.au Disclaimer The views and opinions expressed in this publication are those of the authors and do not necessarily reflect those of the Australian Government or the Minister for Climate Change and Water and the Minister for the Environment, Heritage and the Arts. Citation The book should be cited as: Steffen W, Burbidge AA, Hughes L, Kitching R, Lindenmayer D, Musgrave W, Stafford Smith M and Werner PA (2009) Australia’s biodiversity and climate change: a strategic assessment of the vulnerability of Australia’s biodiversity to climate change. -
Namibia & the Okavango
Pel’s Fishing Owl - a pair was found on a wooded island south of Shakawe (Jan-Ake Alvarsson) NAMIBIA & THE OKAVANGO 21 SEPTEMBER – 8 OCTOBER 2017 LEADER: STEVE BRAINE For most of the country the previous three years drought had been broken and although too early for the mi- grants we did however do very well with birding generally. We searched and found all the near endemics as well as the endemic Dune Lark. Besides these we also had a new write-in for the trip! In the floodplains after observing a wonderful Pel’s Fishing Owl we travelled down a side channel of the Okavango River to look for Pygmy Geese, we were lucky and came across several pairs before reaching a dried-out floodplain. Four birds flew out of the reedbeds and looked rather different to the normal weavers of which there were many, a closer look at the two remaining birds revealed a beautiful pair of Cuckoo Finches. These we all enjoyed for a brief period before they followed the other birds which had now disappeared into the reedbeds. Very strong winds on three of the birding days made birding a huge challenge to say the least after not finding the rare and difficult Herero Chat we had to make alternate arrangements at another locality later in the trip. The entire tour from the Hosea Kutako International Airport outside the capital Windhoek and returning there nineteen days later delivered 375 species. Out of these, four birds were seen only by the leader, a further three species were heard but not seen. -
Breeding Seabirds at Dassen Island, South Africa: Chances of Surviving Great White Pelican Predation
Vol. 9: 125–131, 2010 ENDANGERED SPECIES RESEARCH Published online January 11 doi: 10.3354/esr00243 Endang Species Res OPENPEN ACCESSCCESS Breeding seabirds at Dassen Island, South Africa: chances of surviving great white pelican predation Martin M. Mwema1, 2,*, Marta de Ponte Machado1, 2, Peter G. Ryan1 1Percy Fitzpatrick Institute, DST/NRF Centre of Excellence, University of Cape Town, Rondebosch 7701, South Africa 2Animal Demography Unit, Department of Zoology, University of Cape Town, Rondebosch 7701, South Africa Present address: Box 1019, 00100, GPO, Nairobi, Kenya ABSTRACT: Seabird predation by great white pelicans Pelecanus onocrotalus is an unusual phenom- enon that has become increasingly frequent in the Western Cape, South Africa. We report the scale of pelican predation and its impact on the breeding success of 5 seabird species monitored at Dassen Island in 2006. Pelican predation was observed on chicks of kelp gulls Larus dominicanus, crowned cormorants Phalacrocorax coronatus and Cape cormorants Phalacrocorax capensis. No predation on eggs was seen. Breeding success for 4 of the 5 species studied was low, with the white-breasted cor- morants Phalacrocorax lucidus having the highest breeding success (0.56 fledglings per nest). Cape and bank cormorants Phalacrocorax neglectus did not fledge any chicks, while crowned cormorants had a breeding success of 0.08 fledglings per nest. Kelp gulls had a hatching success of 46%, but only a few chicks fledged, giving a breeding success of 0.06 fledglings per nest. Pelican predation poses a threat to at least 3 of the 5 seabirds studied, all of which are endemic to southern Africa. Three spe- cies are globally Endangered or Near Threatened, and pelican predation places additional pressure on these species. -
Habitat Types
Habitat Types The following section features ten predominant habitat types on the West Coast of the Eyre Peninsula, South Australia. It provides a description of each habitat type and the native plant and fauna species that commonly occur there. The fauna species lists in this section are not limited to the species included in this publication and include other coastal fauna species. Fauna species included in this publication are printed in bold. Information is also provided on specific threats and reference sites for each habitat type. The habitat types presented are generally either characteristic of high-energy exposed coastline or low-energy sheltered coastline. Open sandy beaches, non-vegetated dunefields, coastal cliffs and cliff tops are all typically found along high energy, exposed coastline, while mangroves, sand flats and saltmarsh/samphire are characteristic of low energy, sheltered coastline. Habitat Types Coastal Dune Shrublands NATURAL DISTRIBUTION shrublands of larger vegetation occur on more stable dunes and Found throughout the coastal environment, from low beachfront cliff-top dunes with deep stable sand. Most large dune shrublands locations to elevated clifftops, wherever sand can accumulate. will be composed of a mosaic of transitional vegetation patches ranging from bare sand to dense shrub cover. DESCRIPTION This habitat type is associated with sandy coastal dunes occurring The understory generally consists of moderate to high diversity of along exposed and sometimes more sheltered coastline. Dunes are low shrubs, sedges and groundcovers. Understory diversity is often created by the deposition of dry sand particles from the beach by driven by the position and aspect of the dune slope.