Conference Program Download
Total Page：16
File Type：pdf, Size：1020Kb
Load more
Recommended publications
-
Some Ecological Aspects of Crested Serpent Eagle
TAPROBANICA , ISSN 1800-427X. October, 2012. Vol. 04, No. 02: pp. 77-82. © Taprobanica Private Limited, 146, Kendalanda, Homagama, Sri Lanka. BREEDING ECOLOGY OF THE CRESTED SERPENT EAGLE Spilornis cheela (LATHAM, 1790) (AVES: ACCIPITRIFORMES: ACCIPITRIDAE) IN KOLLI HILLS, TAMIL NADU, INDIA Sectional Editor: Sujan Henkanaththegedara Submitted: 24 January 2012, Accepted: 27 June 2012 Varadarajan Gokula Post Graduate & Research Department of Zoology, National College, Tiruchirappalli 620001, Tamil Nadu, India; E-mail: [email protected] Abstract The breeding ecology of the crested serpent eagle (Spilornis cheela), focusing on nest-site selection, food habits, and perch-site preference, was studied in the Kolli Hills of Tamil Nadu, India, from May 2005 to May 2010. Thirty-two active nests were located, with nest-site details collected from 27 nests that were accessible. The crested serpent eagle did not construct new nests, but did renew or alter old nests, mainly in December. Both sexes were involved in the nest renewal activities. The clutch size was one, the mean incubation period was 41.5 days, and the mean fledging period was 64.5 days. Nests were found largely along riverine patches. The results indicate the mature and less disturbed riverine forests with large sized trees are critical for the breeding and conservation of this species. The food habits of the eagle were known from prey items brought into the nest by the adult to feed the chick and prey items fed on by the adult. In total, 173 feeding observations were made and the prey items belonged to 17 species of vertebrates. The crested serpent eagle largely preferred reptiles, which accounted for 74% of their diet, followed by birds, which accounted for 18% of their diet. -
Vietnam Birding Trip Report
This near-endemic Red-collared Woodpecker was just one of the many mega birds seen on our 2014 tour to Vietnam! (János Oláh) VIETNAM 9 – 30 MARCH 2014 LEADER: JÁNOS OLÁH Although Birdquest has been operating tours to Vietnam for over 20 years in 2014 we were running a revised itinerary and completed the most successful tour ever to this fascinating country! On the 2014 tour we visited again Ba Be National Park in the far north in search of White-eared Night-Heron and also included the Mang Den area to look for the endemic Chestnut-eared Laughingthrush. We managed to see both of them and the latter was a new bird to the Birdquest list – which had passed the 10,000 species mark just before our tour started! It happens occasionally on a tour when all things come together and also the luck factor is on our side but definitely Vietnam 2014 was one of these tours! We saw an amazing nine species of pheasants and partridges including the enigmatic Orange-necked Partridge, no less then twelve species of cuckoos, six species of owls including Mountain Scops Owl and Spot-bellied Eagle Owl, fifteen species of woodpeckers and an amazing ten species of laughingthrushes which is certainly a main focus of this tour. All the key Indochinese endemics were also seen amongst a good total of 373 species recorded. Highlights among the many regional or near-endemics included superb views of Germain’s Peacock-pheasant, several Pied Falconets, a male Red-collared Woodpecker, several Red-vented and Indochinese Barbets (the latter split from Black-browed), Austen’s -
Printable PDF Format
Field Guides Tour Report Taiwan 2020 Feb 1, 2020 to Feb 12, 2020 Phil Gregory & local guide Arco Huang For our tour description, itinerary, past triplists, dates, fees, and more, please VISIT OUR TOUR PAGE. This gorgeous male Swinhoe's Pheasant was one of the birds of the trip! We found a pair of these lovely endemic pheasants at Dasyueshan. Photo by guide Phil Gregory. This was a first run for the newly reactivated Taiwan tour (which we last ran in 2006), with a new local organizer who proved very good and enthusiastic, and knew the best local sites to visit. The weather was remarkably kind to us and we had no significant daytime rain, somewhat to my surprise, whilst temperatures were pretty reasonable even in the mountains- though it was cold at night at Dasyueshan where the unheated hotel was a bit of a shock, but in a great birding spot, so overall it was bearable. Fog on the heights of Hohuanshan was a shame but at least the mid and lower levels stayed clear. Otherwise the lowland sites were all good despite it being very windy at Hengchun in the far south. Arco and I decided to use a varied assortment of local eating places with primarily local menus, and much to my amazement I found myself enjoying noodle dishes. The food was a highlight in fact, as it was varied, often delicious and best of all served quickly whilst being both hot and fresh. A nice adjunct to the trip, and avoided losing lots of time with elaborate meals. -
Ecuador & the Galapagos Islands
Ecuador & the Galapagos Islands - including Sacha Lodge Extension Naturetrek Tour Report 29 January – 20 February 2018 Medium Ground-finch Blue-footed Booby Wire-tailed Manakin Galapagos Penguin Green Sea Turtle Report kindly compiled by Tour participants Sally Wearing, Rowena Tye, Debbie Hardie and Sue Swift Images courtesy of David Griffiths, Sue Swift, Debbie Hardie, Jenny Tynan, Rowena Tye, Nick Blake and Sally Wearing Naturetrek Mingledown Barn Wolf’s Lane Chawton Alton Hampshire GU34 3HJ UK T: +44 (0)1962 733051 E: [email protected] W: www.naturetrek.co.uk Tour Report Ecuador & the Galapagos Islands - including Sacha Lodge Extension Tour Leader in the Galapagos: Juan Tapia with 13 Naturetrek Clients This report has kindly been compiled by tour participants Sally Wearing, Rowena Tye, Debbie Hardie and Sue Swift. Day 1 Monday 29th January UK to Quito People arrived in Quito via Amsterdam with KLM or via Madrid with Iberia, while Tony came separately from the USA. Everyone was met at the airport and taken to the Hotel Vieja Cuba; those who were awake enough went out to eat before a good night’s rest. Day 2 Tuesday 30th January Quito. Weather: Hot and mostly sunny. The early risers saw the first few birds of the trip outside the hotel: Rufous- collared Sparrow, Great Thrush and Eared Doves. After breakfast, an excellent guide took us on a bus and walking tour of Quito’s old town. This started with the Basilica del Voto Nacional, where everyone marvelled at the “grotesques” of native Ecuadorian animals such as frigatebirds, iguanas and tortoises. -
Tc & Forward & Owls-I-IX
USDA Forest Service 1997 General Technical Report NC-190 Biology and Conservation of Owls of the Northern Hemisphere Second International Symposium February 5-9, 1997 Winnipeg, Manitoba, Canada Editors: James R. Duncan, Zoologist, Manitoba Conservation Data Centre Wildlife Branch, Manitoba Department of Natural Resources Box 24, 200 Saulteaux Crescent Winnipeg, MB CANADA R3J 3W3 <[email protected]> David H. Johnson, Wildlife Ecologist Washington Department of Fish and Wildlife 600 Capitol Way North Olympia, WA, USA 98501-1091 <[email protected]> Thomas H. Nicholls, retired formerly Project Leader and Research Plant Pathologist and Wildlife Biologist USDA Forest Service, North Central Forest Experiment Station 1992 Folwell Avenue St. Paul, MN, USA 55108-6148 <[email protected]> I 2nd Owl Symposium SPONSORS: (Listing of all symposium and publication sponsors, e.g., those donating $$) 1987 International Owl Symposium Fund; Jack Israel Schrieber Memorial Trust c/o Zoological Society of Manitoba; Lady Grayl Fund; Manitoba Hydro; Manitoba Natural Resources; Manitoba Naturalists Society; Manitoba Critical Wildlife Habitat Program; Metro Propane Ltd.; Pine Falls Paper Company; Raptor Research Foundation; Raptor Education Group, Inc.; Raptor Research Center of Boise State University, Boise, Idaho; Repap Manitoba; Canadian Wildlife Service, Environment Canada; USDI Bureau of Land Management; USDI Fish and Wildlife Service; USDA Forest Service, including the North Central Forest Experiment Station; Washington Department of Fish and Wildlife; The Wildlife Society - Washington Chapter; Wildlife Habitat Canada; Robert Bateman; Lawrence Blus; Nancy Claflin; Richard Clark; James Duncan; Bob Gehlert; Marge Gibson; Mary Houston; Stuart Houston; Edgar Jones; Katherine McKeever; Robert Nero; Glenn Proudfoot; Catherine Rich; Spencer Sealy; Mark Sobchuk; Tom Sproat; Peter Stacey; and Catherine Thexton. -
Raptor Nest Survey Summary Report
Raptor Nest Survey Summary Report Lot 5 UBC South Campus January 6, 2020 Submitted to: Polygon Homes Ltd. Raptor Nest Survey Summary Report 1.0 Introduction 1.1 Project Background Diamond Head Consulting Ltd. (DHC) was retained to conduct a raptor nest survey for the proposed development of Lot 5 into a parkade at the University of British Columbia (UBC) South Campus. The development requires the removal of all trees from an existing natural area. As part of this project, on‐ site tree planting is planned upon completion of the parkade. A nest survey is required prior to construction activity to ensure compliance with the federal Migratory Birds Convention Act [1994] and attendant Migratory Birds Regulation [1994] that protects migratory birds, their eggs, and nests. Also, Section 34(a), (b), and (c) of the provincial Wildlife Act [1996 chap 488] prohibits the taking of birds, eggs, and nests. Nests of eagle, peregrine falcon, gyrfalcon, osprey, heron, and burrowing owl are specifically protected whether or not they are active. 1.2 Site Description The project site is a second growth forested area south of W 16th Ave and east of SW Marine Dr, on the corner of Berton Ave and Binning Rd within the UBC South Campus (Figure 1). The nest survey was conducted within the project site and in the forested area immediately adjacent to the north and east. Figure 1 – Project location, UBC South Campus Lot 5, Vancouver, B.C. 3559 Commercial Street, Vancouver B.C. V5N 4E8 | T 604‐733‐4886 1 Raptor Nest Survey Summary Report The project site and adjacent natural areas are a native second growth forest stand mainly consisting of Western Red Cedar (Thuja plicata), Western Hemlock (Tsuga heterophylla), Douglas Fir (Pseudotsuga menziesii), and Bigleaf Maple (Acer macrophyllum). -
Birds of Prey (Accipitriformes and Falconiformes) of Serra De Itabaiana National Park, Northeastern Brazil
Acta Brasiliensis 4(3): 156-160, 2020 Original Article http://revistas.ufcg.edu.br/ActaBra http://dx.doi.org/10.22571/2526-4338416 Birds of prey (Accipitriformes and Falconiformes) of Serra de Itabaiana National Park, Northeastern Brazil Cleverton da Silvaa* i , Cristiano Schetini de Azevedob i , Juan Ruiz-Esparzac i , Adauto de Souza d i Ribeiro h a Programa de Pós-Graduação em Desenvolvimento e Meio Ambiente, Universidade Federal de Sergipe, Aracajú, São Cristóvão, 49100-100, Sergipe, Brasil. *[email protected] b Programa de Pós-Graduação em Ecologia de Biomas Tropicais, Universidade Federal de Ouro Preto, Ouro Preto, 35400-000, Minas Gerais, Brasil. c Universidade Federal de Sergipe, Nossa Senhora da Glória, 49680-000, Sergipe, Brasil. d Universidade Federal de Sergipe, Aracajú, São Cristóvão, 49100-100, Sergipe, Brasil. Received: June 20, 2020 / Accepted: August 27, 2020/ Published online: September 28, 2020 Abstract Birds of prey are important for maintaining ecosystems, since they can regulate the populations of vertebrates and invertebrates. However, anthropic activities, like habitat fragmentation, have been decreasing the number of birds of prey, affecting the habitat ecological relations and, decreasing biodiversity. Our objective was to evaluate species of birds of prey (Accipitriformes and Falconiformes) in a protected area of the Atlantic forest in northeastern Brazil. The area was sampled for 17 months using fixed points and walking along a pre-existing trail. Birds of prey were classified by their Punctual Abundance Index, threat status and forest dependence. Sixteen birds of prey were recorded, being the most common Rupornis magnirostris and Caracara plancus. Most species were considered rare in the area and not dependent of forest vegetation. -
Harrier References
Introduction This is the final version of the Harrier's list, no further updates will be made. Grateful thanks to Wietze Janse and Tom Shevlin (www.irishbirds.ie) for the cover images and all those who responded with constructive feedback. All images © the photographers. Please note that this and other Reference Lists I have compiled are not exhaustive and are best employed in conjunction with other sources. Joe Hobbs Index The general order of species follows the International Ornithologists' Union World Bird List (Gill, F. & Donsker, D. (eds.) 2019. IOC World Bird List. Available from: https://www.worldbirdnames.org/ [version 9.1 accessed January 2019]). Final Version Version 1.4 (January 2019). Cover Main image: Western Marsh Harrier. Zevenhoven, Groene Jonker, Netherlands. 3rd May 2011. Picture by Wietze Janse. Vignette: Montagu’s Harrier. Great Saltee Island, Co. Wexford, Ireland. 10th May 2008. Picture by Tom Shevlin. Species Page No. African Marsh Harrier [Circus ranivorus] 8 Black Harrier [Circus maurus] 10 Cinereous Harrier [Circus cinereus] 17 Eastern Marsh Harrier [Circus spilonotus] 6 Hen Harrier [Circus cyaneus] 11 Long-winged Harrier [Circus buffoni] 9 Malagasy Harrier [Circus macrosceles] 9 Montagu's Harrier [Circus pygargus] 20 Northern Harrier [Circus hudsonius] 16 Pallid Harrier [Circus macrourus] 18 Papuan Harrier [Circus spilothorax] 7 Pied Harrier [Circus melanoleucos] 20 Réunion Harrier [Circus maillardi] 9 Spotted Harrier [Circus assimilis] 9 Swamp Harrier [Circus approximans] 7 Western Marsh Harrier [Circus aeruginosus] 4 1 Relevant Publications Balmer, D. et al. 2013. Bird Atlas 2001-11: The breeding and wintering birds of Britain and Ireland. BTO Books, Thetford. Beaman, M. -
Visual Adaptations of Diurnal and Nocturnal Raptors
Seminars in Cell and Developmental Biology 106 (2020) 116–126 Contents lists available at ScienceDirect Seminars in Cell & Developmental Biology journal homepage: www.elsevier.com/locate/semcdb Review Visual adaptations of diurnal and nocturnal raptors T Simon Potiera, Mindaugas Mitkusb, Almut Kelbera,* a Lund Vision Group, Department of Biology, Lund University, Sölvegatan 34, S-22362 Lund, Sweden b Institute of Biosciences, Life Sciences Center, Vilnius University, Saulėtekio Av 7, LT-10257 Vilnius, Lithuania HIGHLIGHTS • Raptors have large eyes allowing for high absolute sensitivity in nocturnal and high acuity in diurnal species. • Diurnal hunters have a deep central and a shallow temporal fovea, scavengers only a central and owls only a temporal fovea. • The spatial resolution of some large raptor species is the highest known among animals, but differs highly among species. • Visual fields of raptors reflect foraging strategies and depend on the divergence of optical axes and on headstructures • More comparative studies on raptor retinae (preferably with non-invasive methods) and on visual pathways are desirable. ARTICLE INFO ABSTRACT Keywords: Raptors have always fascinated mankind, owls for their highly sensitive vision, and eagles for their high visual Pecten acuity. We summarize what is presently known about the eyes as well as the visual abilities of these birds, and Fovea point out knowledge gaps. We discuss visual fields, eye movements, accommodation, ocular media transmit- Resolution tance, spectral sensitivity, retinal anatomy and what is known about visual pathways. The specific adaptations of Sensitivity owls to dim-light vision include large corneal diameters compared to axial (and focal) length, a rod-dominated Visual field retina and low spatial and temporal resolution of vision. -
RSPB CENTRE for CONSERVATION SCIENCE RSPB CENTRE for CONSERVATION SCIENCE Where Science Comes to Life
RSPB CENTRE FOR CONSERVATION SCIENCE RSPB CENTRE FOR CONSERVATION SCIENCE Where science comes to life Contents Knowing 2 Introducing the RSPB Centre for Conservation Science and an explanation of how and why the RSPB does science. A decade of science at the RSPB 9 A selection of ten case studies of great science from the RSPB over the last decade: 01 Species monitoring and the State of Nature 02 Farmland biodiversity and wildlife-friendly farming schemes 03 Conservation science in the uplands 04 Pinewood ecology and management 05 Predation and lowland breeding wading birds 06 Persecution of raptors 07 Seabird tracking 08 Saving the critically endangered sociable lapwing 09 Saving South Asia's vultures from extinction 10 RSPB science supports global site-based conservation Spotlight on our experts 51 Meet some of the team and find out what it is like to be a conservation scientist at the RSPB. Funding and partnerships 63 List of funders, partners and PhD students whom we have worked with over the last decade. Chris Gomersall (rspb-images.com) Conservation rooted in know ledge Introduction from Dr David W. Gibbons Welcome to the RSPB Centre for Conservation The Centre does not have a single, physical Head of RSPB Centre for Conservation Science Science. This new initiative, launched in location. Our scientists will continue to work from February 2014, will showcase, promote and a range of RSPB’s addresses, be that at our UK build the RSPB’s scientific programme, helping HQ in Sandy, at RSPB Scotland’s HQ in Edinburgh, us to discover solutions to 21st century or at a range of other addresses in the UK and conservation problems. -
Is the Black Harrier Circus Maurus a Specialist Predator? Assessing the Diet of 3 a Threatened Raptor Species Endemic to Southern Africa
1 2 Is the Black Harrier Circus maurus a specialist predator? Assessing the diet of 3 a threatened raptor species endemic to Southern Africa 4 5 Marie-Sophie Garcia-Heras1, François Mougeot2, Beatriz Arroyo2, Graham Avery3,4 , 6 Margaret D. Avery3 & Robert E. Simmons1 7 8 1Percy FitzPatrick Institute, DST-NRF Centre of Excellence, University of Cape Town, Private 9 Bag X3, Rondebosch 7701, South Africa. 10 2Instituto de Investigación en Recursos Cinegéticos (IREC), CSIC-UCLM-JCCM, Ronda de 11 Toledo 12, 13005 Ciudad Real, Spain. 12 3Iziko South African Museum, P.O. Box 61, Cape Town 8000, South Africa. 13 4Archaeology Department, University of Cape Town, Private Bag X3, Rondebosch 7701, 14 South Africa 15 16 Correspondence: Marie-Sophie Garcia-Heras, Percy FitzPatrick Institute, DST-NRF Centre of 17 Excellence, University of Cape Town, private Bag X3, Rondebosch 7701, South Africa. 18 Email: [email protected] 19 ORCID ID: orcid.org/0000-0002-3460-5484 20 21 22 23 Keywords: 24 Specialist predator, food requirements, small mammal, South Africa, Fynbos, Karoo 25 1 26 Abstract 27 Studying the diet of wild animals is central for understanding their flexibility in food requirements. 28 The Black Harrier Circus maurus is an endangered raptor in South Africa and Namibia. To date, 29 information about the diet of the species is insufficient for a comprehensive understanding of their 30 ecology. We studied the diet composition of breeding Black Harriers using ca. 1000 pellets (> 1700 31 identified prey) collected at nest sites in two geographical regions (coastal vs. interior-mountain) 32 over 10 breeding seasons (2006-2015). -
Estimations Relative to Birds of Prey in Captivity in the United States of America
ESTIMATIONS RELATIVE TO BIRDS OF PREY IN CAPTIVITY IN THE UNITED STATES OF AMERICA by Roger Thacker Department of Animal Laboratories The Ohio State University Columbus, Ohio 43210 Introduction. Counts relating to birds of prey in captivity have been accomplished in some European countries; how- ever, to the knowledge of this author no such information is available in the United States of America. The following paper consistsof data related to this subject collected during 1969-1970 from surveys carried out in many different direc- tions within this country. Methods. In an attempt to obtain as clear a picture as pos- sible, counts were divided into specific areas: Research, Zoo- logical, Falconry, and Pet Holders. It became obvious as the project advanced that in some casesthere was overlap from one area to another; an example of this being a falconer working with a bird both for falconry and research purposes. In some instances such as this, the author has used his own judgment in placing birds in specific categories; in other in- stances received information has been used for this purpose. It has also become clear during this project that a count of "pets" is very difficult to obtain. Lack of interest, non-coop- eration, or no available information from animal sales firms makes the task very difficult, as unfortunately, to obtain a clear dispersal picture it is from such sourcesthat informa- tion must be gleaned. However, data related to the importa- tion of birds' of prey as recorded by the Bureau of Sport Fisheries and Wildlife is included, and it is felt some observa- tions can be made from these figures.