Wave Moult of the Primaries in Accipitrid Raptors, and Its Use in Ageing Immatures
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Downloaded from Brill.Com10/11/2021 06:43:08AM Via Free Access 182 T
Bijdragen tot de Dierkunde, 56 (2): 181-204 — 1986 Microscopic identification of feathers and feather fragments of Palearctic birds by Tim G. Brom Institute of Taxonomic Zoology (Zoologisch Museum), University of Amsterdam, P.O. Box 20125, 1000 HC Amsterdam, The Netherlands much better and Abstract a assessment of the problem could suggest the most adequate preventive Using light microscopy, a method has been developed for measures. the identification of feathers and feather fragments col- of lected after collisions between birds and aircraft. Charac- LaHam (1967) started the application of the barbules of feathers described for 22 ters downy are microscopic investigation of scrapings collected orders of birds. The of in combination with the use a key of amino from engines, combined with the use macroscopic method of comparing feathers with bird skins acid of and able analysis protein residues, was in a museum collection results in identificationto order or to bird so that defective family level in 97% of the analysed bird strikes. Applica- diagnose strikes, could be into those tion of the method to other fields of biological research engines rapidly separated is discussed. including taxonomy due to either bird strikes or mechanical failures. The microscopic structure of feathers was Résumé first studied by Chandler (1916). He described of feathers of North the structure pennaceous Une méthode utilisant la microscopie optique a été mise l’identification des des American and found differences à point pour plumes et fragments birds, large de collectés des collisions oiseaux plume après entre et between different taxa. He also examined the avions. On décrit les caractères des barbules duveteuses downy barbules of a few species and provided des 22 ordres d’oiseaux. -
(Buteogallus Coronatus) in Argentina
SHORT COMMUNICATIONS J. Raptor Res. 54(2):166–171 Ó 2020 The Raptor Research Foundation, Inc. ELECTROCUTION ON POWER LINES IS AN IMPORTANT THREAT FOR THE ENDANGERED CHACO EAGLE (BUTEOGALLUS CORONATUS) IN ARGENTINA 1 JOSE´ H. SARASOLA Centro para el Estudio y Conservacio´n de Aves Rapaces en Argentina (CECARA). Universidad Nacional de La Pampa, Avda Uruguay 151, 6300 Santa Rosa, Argentina and Instituto de las Ciencias Ambientales y de la Tierra de La Pampa (INCITAP-CONICET), Avda Uruguay 151, 6300 Santa Rosa, La Pampa, Argentina MAXIMILIANO A. GALMES Centro para el Estudio y Conservacio´n de Aves Rapaces en Argentina (CECARA), Universidad Nacional de La Pampa, Avda Uruguay 151, 6300 Santa Rosa, Argentina and The Peregrine Fund, Boise, ID 83709 USA BRYAN D. WATTS Center for Conservation Biology, College of William & Mary, Williamsburg, VA 23187 USA and Virginia Commonwealth University, Williamsburg, VA 23284 USA ABSTRACT.—Electrocution is a widespread conservation problem for birds of prey that has received little attention in the Neotropics. Here we present electrocution records involving the endangered Chaco Eagle (Buteogallus coronatus) in central Argentina, and we provide information on the power pole structural characteristics associated with electrocutions. Nine Chaco Eagles were recorded electrocuted during the period 2012–2019 over an area of 9000 km2. Chaco Eagles were found electrocuted in association with five types of power poles, but more than half the electrocutions (55%) were on poles made of steel-reinforced concrete and with jumper wires above the crossarms. With the addition of four previous electrocution reports in this region during the same time period, the annual rate of Chaco Eagle electrocutions was similar to the rate of mortality by other human-related factors such as direct persecution. -
Percy Fitzpatrick Institute of African Ornithology Annual Report
Percy FitzPatrick Institute DST/NRF Centre of Excellence Annual Report January – December 2009 Department of Zoology University of Cape Town Private Bag X3 Rondebosch 7701 SOUTH AFRICA +27 (0)21 650 3290/1 [email protected] http://www.fitzpatrick.uct.ac.za University of Cape Town Contents Director’s report 1 Staff and Students 3 Research Programmes & Initiatives • Systematics and Biogeography 5 • Cooperation and Sociality in birds 13 • Rarity and Conservation of African birds 19 • Island Conservation 26 • Seabird Research 28 • Raptor Research 33 • Spatial Parasitology and Epidemiology 36 • Pattern-process Linkages in Landscape 39 Ecology • Environmental & Resource Economics 41 • Climate Change Vulnerability and 44 Adaptation • And a Miscellany 49 Conservation Biology Masters 53 Board Members: Programme Niven Library 55 Mr M. Anderson (BirdLife SA) Scientific Publications 59 Mr H. Amoore (UCT, Registrar) Dr G. Avery (Wildlife and Environment Society of Southern Africa) Semi-popular Publications 63 Prof. K. Driver (UCT, Dean of Science, Chairman) Prof. P.A.R. Hockey (UCT, Director, PFIAO) Seminars 2009 65 Assoc. Prof. J. Hoffmann (UCT, HoD, Zoology) Mr P.G. Johnson (co-opted) Dr J. McNamara (UCT, Development & Alumni Dept) Prof. M.E. Meadows (UCT, HoD, ENGEO) Mr C.A.F. Niven (FitzPatrick Memorial Trust) Mr J.D.F. Niven (FitzPatrick Memorial Trust) Mr P.N.F. Niven (FitzPatrick Memorial Trust) Mr F. van der Merwe (co-opted) Prof. D. Visser (UCT, Chairman, URC) The Annual Report may also be viewed on the Percy FitzPatrick Institute's website: http://www.fitzpatrick.uct.ac.za Director’s Report Director’s Report To say that 2009 was a busy and eventful year would be an understatement! Early in January, Doug Loewenthal, Graeme Oatley and I participated in the Biodiversity Academy at De Hoop Nature Reserve. -
Sun-Bathing As a Thermo-Regulatory and in Birds
SHORT COMMUNICATIONS SUN-BATHING AS A THERMO- REGULATORY AID IN BIRDS TOM J. CADE Section of Ecology and Systematics Cornell University Ithaca, New York 14850 In their study of the Roadrunner (Gcococcl~x califor- for thermoregulation in cold air without resorting ?o nianus), Ohmart and Lasiewski ( 1971) provided a special sun-bathing posture (Hamilton and Heppner another example of a bird that supplements endo- 1967; Lustick 1969, 1971; Heppner 1970). thermy with absorption of solar radiation at low air Ohmart and Lasiewski never observed their Road- temperatures, but they did not give an entirely runners sun-bathing when the ambient temperature convincing proof of a heliothermic function for sun- was above the birds ’ lower critical temperature, but bathing per se. To do so, they would have to show a many birds do sun-bathe at high ambient tempera- difference between sun-bathing and normally postured tures. I had this fact dramatically brought to my Roadrunners under the same conditions of ambient attention during a visit to the Los Angeles Zoo on temperature and insolation, e.g., a faster rate of 18 August 1969. Shortly after 16:00, the slanting warming from hypothermia or a lower rate of metab- rays of the midafternoon sun began to penetrate olism for sunning birds. Other birds utilize solar through the sides of the roofed aviaries. There was radiation and thereby reduce their energy expenditure a sudden explosion of sun-bathing activity by a wide FIGURE 1A. A e-year old Bateleur (Terathopius ecaudatus) sunning in natural light on a hot January after- noon in the austral summer, Pretoria, South Africa, 1966. -
Eagle Hill, Kenya: Changes Over 60 Years
Scopus 34: 24–30, January 2015 Eagle Hill, Kenya: changes over 60 years Simon Thomsett Summary Eagle Hill, the study site of the late Leslie Brown, was first surveyed over 60 years ago in 1948. The demise of its eagle population was near-complete less than 50 years later, but significantly, the majority of these losses occurred in the space of a few years in the late 1970s. Unfortunately, human densities and land use changes are poor- ly known, and thus poor correlation can be made between that and eagle declines. Tolerant local attitudes and land use practices certainly played a significant role in protecting the eagles while human populations began to grow. But at a certain point it would seem that changed human attitudes and population density quickly tipped the balance against eagles. Introduction Raptors are useful in qualifying habitat and biodiversity health as they occupy high trophic levels (Sergio et al. 2005), and changes in their density reflect changes in the trophic levels that support them. In Africa, we know that raptors occur in greater diversity and abundance in protected areas such as the Matapos Hills, Zimbabwe (Macdonald & Gargett 1984; Hartley 1993, 1996, 2002 a & b), and Sabi Sand Reserve, South Africa (Simmons 1994). Although critically important, few draw a direct cor- relation between human effects on the environment and raptor diversity and density. The variables to consider are numerous and the conclusions unworkable due to dif- ferent holding-capacities, latitude, land fertility, seasonality, human attitudes, and different tolerances among raptor species to human disturbance. Although the concept of environmental effects caused by humans leading to rap- tor decline is attractive and is used to justify raptor conservation, there is a need for caution in qualifying habitat ‘health’ in association with the quantity of its raptor community. -
In Search of the Southern Banded Snake Eagle
www.forestryexplained.co.za RAPTOR REFUGIA In search of the Southern Banded Snake Eagle Forestry Explained: Our Conservation Legacy Forestry land: a man-made bird sanctuary Since the environmental awakening in the 1970’s, forestry-owned land has gained the reputation of being “green deserts”. Artificial mono-cultures, responsible for a sterile environment where nothing thrives except the tree species of choice. It is a reputation that has stuck, with conservation bodies, environmental organisations, biologists and large proportion of the general public sharing the sentiment that forestry- owned land is nothing more than a biodiversity wasteland – but is it true? SURPRISING FINDINGS “The perception of many lay-birder’s is that plantations hold a low level of avian diversity,” explains Dr Melissa Whitecross, Birdlife South Africa’s Threatened Species project manager: Raptors & Large Terrestrial Birds, “it is a perception which could do with some rebranding”. Melissa speaks with experience, after being surprised by the bird diversity found within northern KwaZulu-Natal’s plantation matrix owned by Sappi, Mondi, SiyaQhubeka (SQF) and a number of private timber producers. 257 bird species were recorded, including birds the survey team classified as “real highlights”: the Ayre’s Hawk-Eagle, Grey Waxbill, Neergard’s Sunbird, African Emerald Cuckoo, African Finfoot, Half-collared Kingfisher, Crowned Eagle and the bird that got them searching the plantations in the first place – Southern Banded Snake Eagle. All photos courtesy of Birdlife South -
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. -
A Multi-Gene Phylogeny of Aquiline Eagles (Aves: Accipitriformes) Reveals Extensive Paraphyly at the Genus Level
Available online at www.sciencedirect.com MOLECULAR SCIENCE•NCE /W\/Q^DIRI DIRECT® PHYLOGENETICS AND EVOLUTION ELSEVIER Molecular Phylogenetics and Evolution 35 (2005) 147-164 www.elsevier.com/locate/ympev A multi-gene phylogeny of aquiline eagles (Aves: Accipitriformes) reveals extensive paraphyly at the genus level Andreas J. Helbig'^*, Annett Kocum'^, Ingrid Seibold^, Michael J. Braun^ '^ Institute of Zoology, University of Greifswald, Vogelwarte Hiddensee, D-18565 Kloster, Germany Department of Zoology, National Museum of Natural History, Smithsonian Institution, 4210 Silver Hill Rd., Suitland, MD 20746, USA Received 19 March 2004; revised 21 September 2004 Available online 24 December 2004 Abstract The phylogeny of the tribe Aquilini (eagles with fully feathered tarsi) was investigated using 4.2 kb of DNA sequence of one mito- chondrial (cyt b) and three nuclear loci (RAG-1 coding region, LDH intron 3, and adenylate-kinase intron 5). Phylogenetic signal was highly congruent and complementary between mtDNA and nuclear genes. In addition to single-nucleotide variation, shared deletions in nuclear introns supported one basal and two peripheral clades within the Aquilini. Monophyly of the Aquilini relative to other birds of prey was confirmed. However, all polytypic genera within the tribe, Spizaetus, Aquila, Hieraaetus, turned out to be non-monophyletic. Old World Spizaetus and Stephanoaetus together appear to be the sister group of the rest of the Aquilini. Spiza- stur melanoleucus and Oroaetus isidori axe nested among the New World Spizaetus species and should be merged with that genus. The Old World 'Spizaetus' species should be assigned to the genus Nisaetus (Hodgson, 1836). The sister species of the two spotted eagles (Aquila clanga and Aquila pomarina) is the African Long-crested Eagle (Lophaetus occipitalis). -
Melagiris (Tamil Nadu)
MELAGIRIS (TAMIL NADU) PROPOSAL FOR IMPORTANT BIRD AREA (IBA) State : Tamil Nadu, India District : Krishnagiri, Dharmapuri Coordinates : 12°18©54"N 77°41©42"E Ownership : State Area : 98926.175 ha Altitude : 300-1395 m Rainfall : 620-1000 mm Temperature : 10°C - 35°C Biographic Zone : Deccan Peninsula Habitats : Tropical Dry Deciduous, Riverine Vegetation, Tropical Dry Evergreen Proposed Criteria A1 (Globally Threatened Species) A2 (Endemic Bird Area 123 - Western Ghats, Secondary Area s072 - Southern Deccan Plateau) A3 (Biome-10 - Indian Peninsula Tropical Moist Forest, Biome-11 - Indo-Malayan Tropical Dry Zone) GENERAL DESCRIPTION The Melagiris are a group of hills lying nestled between the Cauvery and Chinnar rivers, to the south-east of Hosur taluk in Tamil Nadu, India. The Melagiris form part of an almost unbroken stretch of forests connecting Bannerghatta National Park (which forms its north-western boundary) to the forests of Cauvery Wildlife Sanctuary - Karnataka (which forms its southern boundary, separated by the river Cauvery), and further to Biligirirangan hills and Sathyamangalam forests. The northern and western parts are comparatively plain and is part of the Mysore plateau. The average elevation in this region is 500-1000 m. Ground sinks to 300m in the valley of the Cauvery and the highest point is the peak of Guthereyan at 1395.11 m. Red sandy loam is the most common soil type found in this region. Small deposits of alluvium are found along Cauvery and Chinnar rivers and Kaoline is found in some areas near Jowlagiri. The temperature ranges from 10°C ± 35°C. South-west monsoon is fairly active mostly in the northern areas, but north-east monsoon is distinctly more effective in the region. -
Chromosome Painting in Three Species of Buteoninae: a Cytogenetic Signature Reinforces the Monophyly of South American Species
Chromosome Painting in Three Species of Buteoninae: A Cytogenetic Signature Reinforces the Monophyly of South American Species Edivaldo Herculano C. de Oliveira1,2,3*, Marcella Mergulha˜o Tagliarini4, Michelly S. dos Santos5, Patricia C. M. O’Brien3, Malcolm A. Ferguson-Smith3 1 Laborato´rio de Cultura de Tecidos e Citogene´tica, SAMAM, Instituto Evandro Chagas, Ananindeua, PA, Brazil, 2 Faculdade de Cieˆncias Exatas e Naturais, ICEN, Universidade Federal do Para´, Bele´m, PA, Brazil, 3 Cambridge Resource Centre for Comparative Genomics, Cambridge, United Kingdom, 4 Programa de Po´s Graduac¸a˜oem Neurocieˆncias e Biologia Celular, ICB, Universidade Federal do Para´, Bele´m, PA, Brazil, 5 PIBIC – Universidade Federal do Para´, Bele´m, PA, Brazil Abstract Buteoninae (Falconiformes, Accipitridae) consist of the widely distributed genus Buteo, and several closely related species in a group called ‘‘sub-buteonine hawks’’, such as Buteogallus, Parabuteo, Asturina, Leucopternis and Busarellus, with unsolved phylogenetic relationships. Diploid number ranges between 2n = 66 and 2n = 68. Only one species, L. albicollis had its karyotype analyzed by molecular cytogenetics. The aim of this study was to present chromosomal analysis of three species of Buteoninae: Rupornis magnirostris, Asturina nitida and Buteogallus meridionallis using fluorescence in situ hybridization (FISH) experiments with telomeric and rDNA probes, as well as whole chromosome probes derived from Gallus gallus and Leucopternis albicollis. The three species analyzed herein showed similar karyotypes, with 2n = 68. Telomeric probes showed some interstitial telomeric sequences, which could be resulted by fusion processes occurred in the chromosomal evolution of the group, including the one found in the tassociation GGA1p/GGA6. -
Field Identification of the Field Identification of the Field
TOPICS IN IDENTIFICATION he Solitary Eagle ( Harpyhaliaetus solitarius ) is a large raptor that is closely related and similar in adult and immature plum- Tages to the black-hawks in the genus Buteogallus (Lerner and Mindell 2005). It is a rare and very local resident in a variety of wet and dry forested hills and highlands from northern Argentina to northern Mexico (del Hoyo et al. 1994, Ferguson-Lees and Christie 2001). The species has been collected in Mexico not far from the Texas border (see Discussion, pp. 72 –73), so it is possible that it has occurred in the ABA Area. The handful of specimens and nest records of this eagle are from 700 to 2,000 meters above sea level (Brown and Amadon 1968). FFiieelldd IIddeennttiifificcaattiioonn ooff tthhee SSOOLLIITTTAAARRRYYY EEAAAGGGLLLEEE Nevertheless, sightings of this eagle are occasionally reported from lowland tropical rain forest, e.g., at Tikal, Guatemala (Beaver et al. 1991) and the Tuxtlas Mountains of south - William S. Clark ern Veracruz, Mexico (Winker et al. 1992). The species has been reported on some pro - 2301 South Whitehouse Circle fessional bird tours at such lowland sites as Palenque and the Usumicinta River in south - Harlingen, Texas 78550 ern Mexico. All of these accounts have relied on large size and gray coloration as the [email protected] field marks to distinguish the eagles from the much more abundant Common Black- Hawk ( Buteogallus anthracinus ) and Great Black-Hawk ( B. urubitinga ). H. Lee Jones Howell and Webb (1995) were skeptical and stated that most lowland records of the 4810 Park Newport, No. -
Reproduction and Behaviour of the Long-Legged Buzzard (.Buteo Rufinus) in North-Eastern Greece
© Deutschen Ornithologen-Gesellschaft und Partner; download www.do-g.de; www.zobodat.at Die Vogelwarte 39, 1998: 176-182 Reproduction and behaviour of the Long-legged Buzzard (.Buteo rufinus) in North-eastern Greece By Haralambos Alivizatos, Vassilis Goutner and Michael G. Karandinos Abstract: Alivizatos , H., V. Goutner & M. G. Karandinos (1998): Reproduction and behaviour of the Long- legged Buzzard ( Buteo rufinus) in North-eastern Greece. Vogelwarte 39: 176-182. The breeding biology of the Long-legged Buzzard ( Buteo rufinus) was studied in the Evros area, north-eastern Greece in 1989, 1990, 1992 and 1993. The mean number of young fledged per pair per year was similar between years with an overall average of 0.93 (1.58 per successful pair). Of ten home range variables examined, the num ber of alternative nest sites and the extent of forest free areas in home ranges were significant predictors of nest ling productivity. Aggressive interactions were observed with 18 bird species (of which 12 were raptors), most commonly with the Buzzard {Buteo buteo). Such interactions declined during the course of the season. Prey pro visioning to nestlings was greatest in the morning and late in the afternoon declining in the intermediate period. Key words: Buteo rufinus, reproduction, behaviour, Greece. Addresses: Zaliki 4, GR-115 24 Athens, Greece (H. A.); Department of Zoology, Aristotelian University of Thessaloniki, GR-54006, Thessaloniki, Macedonia, Greece (V. G.); Laboratory of Ecology and Environmental Sciences, Agricultural University of Athens 75 Iera Odos 1 1855 Athens, Greece (M. G. K.). 1. Introduction The Long-legged Buzzard (Buteo rufinus) is a little known raptor of Europe.