DOCSLIB.ORG

Studying Hawk-Eagles in Belize Text and Photos by Ryan

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Studying Hawk-Eagles in Belize Text and Photos by Ryan Red de Rapaces Neotropicales (RRN) N EOTROPICAL RAPTOR NETWORK (NRN) Newsletter #7 June 2009 INSIDE THIS Text and photos by Ryan EDITION: Studying Hawk-Eagles in Belize Phillips, Belize Raptor Research Institute, www.belizeraptorresearch.org, [email protected] Studying hawk- 1 In 2009, the Belize Raptor Re- eagles in Belize search Institute (BRRI) Raptor monitoring 2 launched the Hawk-Eagle Pro- in Colombia gram in Belize as an effort to better understand all three American Kestrel 4 poorly known hawk-eagle spe- in Peru cies. This minimum ten year program will focus on locating Community Edu- 7 active nests of all three species cation in Panama of Hawk-Eagle (Ornate, Black, and Black and White), gaining New Literature on 9 information on nesting biology, Raptors home range size, movement patterns, habitat utilization, for- Upcoming Confer- 12 aging ecology and understand- ences ing intraspecific and interspeci- fic competition through nest monitoring and radio telemetry. To date, BRRI with the help of local peoples and other organi- zations have located seven ac- tive nests throughout Belize; one Black Hawk-Eagle Spizaetus tyrannus in flight (Spizaetus tyrannus); four Ornate Hawk-Eagle (Spizaetus ornatus); baseline data we can not which took place in Tikal and two Black and White properly assess present National Park, Guatemala Hawk-Eagle (Spizaetus melanoleu- populations and make during the late 1980’s and cus). demographic predictions. early 1990’s. Of the three The hawk-eagles could be hawk-eagle species the Or- more or less endangered From anecdotal record trends nate Hawk-Eagle has been than current estimations, and dwindling habitat the hawk- studied extensively from so as we learn more about eagles are considered “species nest surveys to radio te- these species we can bet- with dangerously low popula- lemetry (Lyon and ter quantify populations. tions” (Clinton-Eitniear 1986). Kuhnigk 1985, Klein et. al. All three hawk-eagle species are 1988, Flatten et. al. 1989, J. listed as Least Concern by the To date, The Peregrine Madrid et. al. 1991, H. Ma- IUCN, but the Black and White Fund’s Maya Project is drid et. al. 1992). During Hawk-Eagle was listed as Near one of the largest full the Maya Project three Threatened from 1988 to 2000 scale studies conducted Black Hawk-Eagle nests Juvenile Spizaetus ornatus (IUCN 2008). With insufficient on Neotropical raptors, (Continued on page 10) Page 2 Newsletter #7 Raptor Monitoring in the Sumapaz River Valley, Colombia Text and photos by Diego Soler, MV, MSc, Departamento de Investigación de la Asociación de Veterinarios de Vida Silvestre (VVS) and Asociación Colombiana de Ornitología (ACO), [email protected] this species (Hilty & Brown, 1986; Márquez et al, 2005), but was made in a new location, close to an area where previous sightings had oc- curred. The identification of this species was difficult due to its simi- larity to other species (B. swainsoni, B. albicaudatus, among others) and for its flight in thermal currents alongside groups of vultures (C. atratus) (Ferguson & Christie, 2001; Seipke, 2005). B. magnirostris is a species Pair of Falco femoralis: male (left), female (right) with ample distribution in Colom- bia, both in unaltered areas as well tion), in the Fusagasugá Municipality, The Sumapaz River Valley is part of as in urban zones, and it is found Cundinamarca Department. the region of the same name, lo- below 2600 meters of elevation I used “observation points” cated in the eastern mountain chain, (Hilty & Brown, 1986; Márquez et to conduct an inventory of raptors at south of the Cundinamarca in cen- al, 2005). two points: one on the edge of a tral Colombia. This valley belongs E. leucurus is distributed up mountain with a view to the valley to the biogeographic province of to 2600 meters in elevation along and the other in the plains before Magdalena, which is inhabited by a the valleys of the province of Mag- this edge (with the greatest human high proportion of the raptors dalena (Hilty & Brown, 1986; intervention). I made the observa- found in Colombia (Márquez et al, Márquez et al, 2005). tions over four days in January, 2009 2005). This distribution of raptors F. femoralis is at the limit of and three days in May of the same is a result of the interaction of cli- its altitudinal distribution in this year, from 08:00 until 18:00, for an matic, geomorphologic, and ecolo- area (<1000 m.) and it has been re- effort of 70 hours. gic conditions, as well as the evolu- ported previously in the biogeo- In January, I sighed a light tionary processes of the region. The raphic province of Magdalena morph Short-tailed Hawk (Buteo type of habitat in this valley is char- (Hilty & Brown, 1986; Márquez et brachyurus), a White-tailed Kite acterized by riparian habitat, bushes al, 2005). (Elanus leucurus), a pair of Aplomado and secondary forest, although Falcons (Falco femoralis), a Yellow- Milvago Chimachima there are areas that have been al- headed Caracara (Milvago chimachima) tered by humans; additionally, along and six Black Vultures (Coragyps atra- the entire valley there are thermal tus). currents, which favor the presence In May, I recorded a juvenile, of birds of prey. dark-morph Short-tailed Hawk (Buteo The knowledge about pat- brachyurus), two Roadside Hawks terns of distribution, abundance (Buteo magnirostris), a White-tailed and composition of raptors in the Kite (Elanus leucurus) and 20 Black Sumapaz River Valley is limited Vultures (Coragyps atratus), for a total (Hilty & Brown, 1986; Márquez et of 35 individuals of six species of al, 2005). For this reason, I began diurnal raptors. monitoring the raptors in the valley The sighting of B. brachyurus zone, specifically in Chinauta (N 4° is consistent with the reported alti- 16', O 74°30', 990 meters in eleva- tudinal distribution (<1800 m.) for Page 3 Newsletter #7 Two Coragyps atratus Dark morph, juvenile Buteo brachyurus M. chimachima is found up to account that in this small region tioned here. 1800 meters in elevation and, just like six species were recorded in two the Roadside Hawk, has an ample distinct and short periods of time. References geographic distribution (Hilty & Taking these results into ac- Brown, 1986; Márquez et al, 2005). count, the Sumapaz River Valley is Ferguson-Lees, J. & D. Christie. Finally, C. atratus has been re- clearly important to birds of prey, 2001. Raptors of the World. New ported at 2700 meters in elevation and based not only on the above- York: Houghton Mifflin Company. is found throughout Colombia (Hilty mentioned landscape and habitat 992 p. & Brown, 1986; Márquez et al, 2005). characteristics, but also on the fact These diurnal raptors are pre- that in this valley one can observe Hilty, S. & W. Brown. 1986. A sent in the study area due to the corre- species of raptors - some of which Guide to the Birds of Colombia. New sponding lowland tropical habitats have been previously documented in Jersey: Princeton University Press. close to the base of the mountains, similar habitats, as well as new sight- 836 p. forests mixed with pastures, bush ings, such as B. brachyurus. This site is steppes and open areas, as well as the an important point from which to Márquez, C., Gast, F., Vanegas, V. presence of potential prey which in- conduct surveys for the raptors men- & M. Bechard. 2005. Aves Rapaces cludes other bird species, rodents, liz- tioned here as well as other species of Diurnas de Colombia. Bogotá: Institu- ards and insects (Márquez et al, 2005). birds of prey in the long term. to de Investigación de Recursos These are the preliminary re- I wish to thank the members Biológicos Alexander von Hum- sults of this initial monitoring effort, of the discussion groups boldt. 394 p. which will contribute to the knowl- “Neotropical Raptor Network” and edge of the raptor species in the Su- “Foro Rapaces”, especially Sergio Seipke, S. 2005. Identificación del mapaz River Valley, clarifying certain Seipke, Agustín Quaglia, Liliana Aguilucho Jote (Buteo albonotatus) en aspects about their patterns of distri- Olveira, Carlos Funes, Lloyd Kiff and el Campo. Nuestras Aves 50: 12-14 bution, abundance and composition Helen Snyder, for their support in the * * * in these types of habitats, taking into identification of some species men- Page 4 Newsletter #7 The American Kestrel: Understanding Aspects of its Behavior in Rural and Urban Environments Text and Photo by César Lautaro Chávez-Villavicencio Instituto Internacional en Conservación y Manejo de Vida Silvestre. Universidad Nacional, Heredia. Costa Rica. Aptdo. 1350 – 3000. Heredia, Costa Rica. [email protected] INTRODUCTION of the same year. To define a pair’s frontations; when another individ- Falcons, which belong to territory, I used an urbanization ual of the same species or a differ- the family Falconidae, are voracious planning map designed by the Pe- ent species invades a pair’s territory, hunters of birds, small mammals ruvian Telephone Company. On the male and the female act right and some insects. They normally this map, I marked the exact points away to chase it off. They both capture their prey from great where the birds were sighted when stoop the intruder, often making heights and exhibit unique behav- the bird was perched, and marked contact with it, while emitting a iors within this family. Falcons are an approximate point when the "kirí kirí kirí" sound. In the urban known for having pointed wings bird was flying or if access to the areas I observed that the pair works and long tails. The American Kes- site was difficult. I defined the lim- together to delimit their territories. trel (Falco sparverius) is distinguished its of a pair’s territory by marking Both the male and the female make from other falcons for its small size those points at which I registered flights around the area, perching in and its distinct rufus colorization confrontations with other bird spe- sites that are considerably high such and black markings.
Load more

Recommended publications
  • 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.
    [Show full text]
  • Bald Eagles 101 Name ______
    Bald Eagles 101 Name __________________________ Go to the Science Spot (http://sciencespot.net/) and click “Kid Zone” to find the link for the “Links for Eagle Days” page! Site: Eagles to the Nest Click “Lesson 1: Bald Eagles 101” and choose “Who Are They?” 1. How many species of eagles are found around the world? _________ 2. The term raptor comes from the Latin word for ________________, which stems from the term “rapture” meaning “____ _________ _____ _________ ________.” 3. Search the page to find the answers to each question. 1st Group - Sea and Fish Eagles (1) How many species belong to this group? ______ (2) Where do they live? _________________________________________________________ (3) What do they like to eat? ____________________________________________________ 2nd Group - Snake Eagles (1) How many species belong to this group? ______ (2) What do they eat? _________________________________________________________ (3) Where can you find these eagles? ___________________________________________ 3rd Group - Harpy Eagles (1) How many species belong to this group? ______ (2) Where do they live? _________________________________________________________ (3) What do they eat? __________________________________________________________ 4th Group - Booted Eagles (1) What do they eat? __________________________________________________________ (2) What one characteristic do all booted eagles have in common? _______________ ___________________________________________________________________________ Identify each eagle by its group using SF for Sea and Fish eagles, S for Snake eagles, H for Harpy eagles, and B for Booted eagles. _____ American Bald Eagle _____ Harpy Eagle _____ Golden Eagle _____ Bateleur _____ Crested Serpent Eagle _____ Steller’s Sea Eagle _____ Black Solitary Eagle _____ Ayres’ Hawk Eagle 4. Where are bald eagles found? ______________________________________________________ 5. Which is larger: a female or male bald eagle? ______________________________________ 6.
    [Show full text]
  • 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).
    [Show full text]
  • Taphonomic Aspects of Crowned Hawk-Eagle Predation on Monkeys
    Journal of Human Evolution 44 (2003) 87–105 Taphonomic Aspects of Crowned Hawk-Eagle Predation on Monkeys William J. Sandersa*, Josh Trapania,b, John C. Mitanic a Museum of Paleontology, University of Michigan, 1109 Geddes Avenue, Ann Arbor, MI 48109-1079, USA b Department of Geological Sciences, University of Michigan, 2534 C.C. Little Building, 425 E. University, Ann Arbor, MI 48109-1063, USA c Department of Anthropology, University of Michigan, 500 South State Street, Ann Arbor, MI 48109-1382, USA Received 24 January 2002; accepted 11 November 2002 Abstract This study provides a taphonomic analysis of prey accumulations of crowned hawk-eagles (Stephanoaetus coronatus) from Ngogo, Kibale National Park, Uganda, collected over 37 months from below nests of two eagle pairs. Crowned hawk-eagles are powerful predators capable of killing animals much larger than themselves, and are significant predators of cercopithecoid monkeys in forest habitats throughout sub-Saharan Africa. At Ngogo, 81% of the individuals in the kill sample are monkeys. Redtail monkeys (Cercopithecus ascanius) are particularly well represented in the sample, making up 66% of monkeys identified to species. Despite an impressive killing apparatus, crowned hawk-eagles are fastidious eaters that inflict far less damage to bone than mammalian predators. Examination of skeletal material from the Ngogo kill sample reveals that crania, hindlimb elements, and scapulae survive predation better than do other bones. Crania of adults are typically complete and accompanied by mandibles, while crania of young individuals are usually dissociated from mandibles and lack basicrania and faces. Long bones are often whole or show minimal damage. Thin bones, such as crania and innominates, are marked by numerous nicks, punctures, and “can-opener” perforations.
    [Show full text]
  • Distributional Notes on the Birds of Peru, Including Twelve Species Previously Unreported from the Republic
    Number 37 26 March 1969 OCCASIONAL PAPERS OF THE MUSEUM OF ZOOLOGY LOUISIANA STATE UNIVERSITY Baton Rouge, Louisiana DISTRIBUTIONAL NOTES ON THE BIRDS OF PERU, INCLUDING TWELVE SPECIES PREVIOUSLY UNREPORTED FROM THE REPUBLIC By John P. O’Neill During eight years of participation in Louisiana State University Peruvian expeditions my field companions and I have collected a number of specimens that represent extensions of known range for the species involved. Two of the specimens here reported are in the American Museum of Natural History in New York. All the others were collected by personnel of the Louisiana State University Museum of Zoology and deposited in that museum. Sub­ specific determinations have been made with the use of comparative material at these two institutions. Extensions of range represent departures from previously known status as given by Meyer de Schauensee (1966). Most of the specimens here reported came from two localities: (1) Balta, a Cashinahua Indian village on the Río Curanja (at the point where the streams known to the local Cashinahuas as the Xumuya and the Inuya enter the Río Curanja, lat. 10°08' S, long. 71°13' W, elevation ca. 300 m), Depto. Loreto; (2) Yarinacocha, an oxbow lake about 15 km by road NNW of Pucallpa, Depto. Loreto. Other localities are identified in the accounts of the species under discussion. Dean Amadon of the American Museum of Natural History kindly per­ mitted me the use of collections in his care. Charles E. O’Brien of the same institution and Rodolphe Meyer de Schauensee of the Academy of Natural Sciences of Philadelphia supplied information pertaining to the status of certain species in Peru.
    [Show full text]
  • Provisional List of Birds of the Rio Tahuauyo Areas, Loreto, Peru
    Provisional List of Birds of the Rio Tahuauyo areas, Loreto, Peru Compiled by Carol R. Foss, Ph.D. and Josias Tello Huanaquiri, Guide Status based on expeditions from Tahuayo Logde and Amazonia Research Center TINAMIFORMES: Tinamidae 1. Great Tinamou Tinamus major 2. White- throated Tinamou Tinamus guttatus 3. Cinereous Tinamou Crypturellus cinereus 4. Little Tinamou Crypturellus soui 5. Undulated Tinamou Crypturellus undulates 6. Variegated Tinamou Crypturellus variegatus 7. Bartlett’s Tinamou Crypturellus bartletti ANSERIFORMES: Anhimidae 8. Horned Screamer Anhima cornuta ANSERIFORMES: Anatidae 9. Muscovy Duck Cairina moschata 10. Blue-winged Teal Anas discors 11. Masked Duck Nomonyx dominicus GALLIFORMES: Cracidae 12. Spix’s Guan Penelope jacquacu 13. Blue-throated Piping-Guan Pipile cumanensis 14. Speckled Chachalaca Ortalis guttata 15. Wattled Curassow Crax globulosa 16. Razor-billed Curassow Mitu tuberosum GALLIFORMES: Odontophoridae 17. Marbled Wood-Quall Odontophorus gujanensis 18. Starred Wood-Quall Odontophorus stellatus PELECANIFORMES: Phalacrocoracidae 19. Neotropic Cormorant Phalacrocorax brasilianus PELECANIFORMES: Anhingidae 20. Anhinga Anhinga anhinga CICONIIFORMES: Ardeidae 21. Rufescent Tiger-Heron Tigrisoma lineatum 22. Agami Heron Agamia agami 23. Boat-billed Heron Cochlearius cochlearius 24. Zigzag Heron Zebrilus undulatus 25. Black-crowned Night-Heron Nycticorax nycticorax 26. Striated Heron Butorides striata 27. Cattle Egret Bubulcus ibis 28. Cocoi Heron Ardea cocoi 29. Great Egret Ardea alba 30. Cappet Heron Pilherodius pileatus 31. Snowy Egret Egretta thula 32. Little Blue Heron Egretta caerulea CICONIIFORMES: Threskiornithidae 33. Green Ibis Mesembrinibis cayennensis 34. Roseate Spoonbill Platalea ajaja CICONIIFORMES: Ciconiidae 35. Jabiru Jabiru mycteria 36. Wood Stork Mycteria Americana CICONIIFORMES: Cathartidae 37. Turkey Vulture Cathartes aura 38. Lesser Yellow-headed Vulture Cathartes burrovianus 39.
    [Show full text]
  • 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).
    [Show full text]
  • An Early Pleistocene Eagle from Nebraska
    248 SHORT COMMUNICATIONS kunthii blossoms by Bombus queens occurred and depend on many factors. That hummingbirds and the workers were unable to secure nectar while positioned ancestor of P. kunthii co-existed may be assumed; within the floral tube, probably as much as lo-20 otherwise its adaptation to hummingbird pollination per cent more nectar was available to Bombus p&her would make little sense. Thus it is possible that P. and Bombus trinominatus populations during this kunthii could have undergone much of its development period due to the feeding activity of Diglossa. under selective pressure from hummingbirds; still, it is clear that Diglossa baritula has co-existed with DISCUSSION AND CONCLUSIONS hummingbirds throughout New World montane hab- Grant and Grant (1968) have proposed an explanation itats for some time and therefore an earlier and more for the reciprocal evolution of hummingbirds and the important role in the evolution of P. kunthii would plants upon which they feed. According to this inter- not be unexpected. This is not to suggest that exploita- pretation most hummingbird-pollinated flowers, espe- tion late in the evolutionary development of P. kunthii cially temperate species, have evolved from bee flowers would be insignificant. Even at present, given the (Grant 1961; Grant and Grant 1965). The process potential counter-selection pressures on P. kunthii involves an incipient stage during which a primitive from bees, the presence of Dglossa perforations un- hummingbird or progenitor already “preadapted” to doubtedly precludes a certain amount of bee pollina- feed on a particular bee flower (in the sense of tion which would probably otherwise occur, helping securing insects within the corolla, or nectar, or both), to maintain the selection pressures on P.
    [Show full text]
  • Predation of Birds Trapped in Mist Nets by Raptors in the Brazilian Caatinga
    Predation of Birds Trapped in Mist Nets by Raptors in the Brazilian Caatinga 1 2 5 Juan Ruiz-Esparza • • Resumen: 1 3 Patricio Adriano da Rocha • La red de neb/ina es una tecnica de captura de Adauto de Souza Ribeiro4 vertebrados voladores como aves y murcielagos. Una Stephen F. Ferrari4 vez capturados e inmovilizados, los animates son 1 Graduate Program in Ecology and Conservation, vulnerables a ataques par predadores hasta su extracci6n. Ataques de animates atrapados han sido Universidade Federal de Sergipe, Avenida registrados en diferentes lugares, aunque los datos son Marechal Rondon s/n, 49.100-000 Sao poco sistematicos, tales como clasificaci6n de la Crist6vao - Sergipe, Brazil. depredaci6n estrin disponibles. Analizamos ataques 2 PR D MA , Universidade Federal de Sergipe, contra las aves capturadas en redes de neblina en la Av. Marechal Rondon s/n, 49.100-000 Caatinga y regiones aledafias en el nordeste de Brasil. Sao Crist6vao-Sergipe, Brazil. Un total de 979 aves fueron capturadas durante 6, 000 horas-red de muestreo, donde 18 (1, 8%) fueron 3 Graduate Program in Zoot gy, U n:i versidade encontradas muertas en Ia red de neblina con senates de Federal da Paraiba, Joao Pessoa-Paraiba, Brazil. Ia depredaci6n. En Ia mayoria de los casas no fue posible identificar el predador, un Gavilan de los 4 Department of Biology, Unjversidade Fed ral d Caminos (Rupomis magnirostris) fue capturado junto S r0 ipe, A venida Marechal Rondon con un Chivi Amarillento (Basileuterus flaveolus) /n 49.100-000 Sao Crist6vao- Sergipe Brazil. depredado, heridas simi/ares fueron observadas en las 5 orresponding author; e-maiJ: otras aves, sugiriendo que rapaces pudieron haber sido juanco lorad 2 1@ h tmail.com responsables par los otros ataques.
    [Show full text]
  • Evolution of Fluvial Drainage During Mountain Building in the Eastern Cordillera of the Colombian Andes
    ADVERTIMENT. Lʼaccés als continguts dʼaquesta tesi queda condicionat a lʼacceptació de les condicions dʼús establertes per la següent llicència Creative Commons: http://cat.creativecommons.org/?page_id=184 ADVERTENCIA. El acceso a los contenidos de esta tesis queda condicionado a la aceptación de las condiciones de uso establecidas por la siguiente licencia Creative Commons: http://es.creativecommons.org/blog/licencias/ WARNING. The access to the contents of this doctoral thesis it is limited to the acceptance of the use conditions set by the following Creative Commons license: https://creativecommons.org/licenses/?lang=en Department de Geologia Evolution of fluvial drainage during mountain building in the Eastern Cordillera of the Colombian Andes Ph. D. Thesis 2016 Lucía Struth Izquierdo 1 2 DRAINAGE REORGANIZATION DURING MOUNTAIN BUILDING IN THE EASTERN CORDILLERA OF THE COLOMBIAN ANDES by LUCÍA STRUTH IZQUIERDO A Thesis Submitted in Fulfillment of the Requirements for the Degree of DOCTOR IN GEOLOGY by the UNIVERSITAT AUTÒNOMA DE BARCELONA PhD thesis supervised by Dr. Antonio Teixell Cácharo Departament de Geologia Universitat Autònoma de Barcelona June 2016 3 4 A mi familia. “Talk about a dream, try to make it real” Bruce Springsteen 5 6 Table of contents Abstract ..................................................................................................................................................... 9 Resumen .................................................................................................................................................
    [Show full text]
  • 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.
    [Show full text]
  • A Report on the Guano-Producing Birds of Peru [“Informe Sobre Aves Guaneras”]
    PACIFIC COOPERATIVE STUDIES UNIT UNIVERSITY OF HAWAI`I AT MĀNOA Dr. David C. Duffy, Unit Leader Department of Botany 3190 Maile Way, St. John #408 Honolulu, Hawai’i 96822 Technical Report 197 A report on the guano-producing birds of Peru [“Informe sobre Aves Guaneras”] July 2018* *Original manuscript completed1942 William Vogt1 with translation and notes by David Cameron Duffy2 1 Deceased Associate Director of the Division of Science and Education of the Office of the Coordinator in Inter-American Affairs. 2 Director, Pacific Cooperative Studies Unit, Department of Botany, University of Hawai‘i at Manoa Honolulu, Hawai‘i 96822, USA PCSU is a cooperative program between the University of Hawai`i and U.S. National Park Service, Cooperative Ecological Studies Unit. Organization Contact Information: Pacific Cooperative Studies Unit, Department of Botany, University of Hawai‘i at Manoa 3190 Maile Way, St. John 408, Honolulu, Hawai‘i 96822, USA Recommended Citation: Vogt, W. with translation and notes by D.C. Duffy. 2018. A report on the guano-producing birds of Peru. Pacific Cooperative Studies Unit Technical Report 197. University of Hawai‘i at Mānoa, Department of Botany. Honolulu, HI. 198 pages. Key words: El Niño, Peruvian Anchoveta (Engraulis ringens), Guanay Cormorant (Phalacrocorax bougainvillii), Peruvian Booby (Sula variegate), Peruvian Pelican (Pelecanus thagus), upwelling, bird ecology behavior nesting and breeding Place key words: Peru Translated from the surviving Spanish text: Vogt, W. 1942. Informe elevado a la Compañia Administradora del Guano par el ornitólogo americano, Señor William Vogt, a la terminación del contracto de tres años que con autorización del Supremo Gobierno celebrara con la Compañia, con el fin de que llevara a cabo estudios relativos a la mejor forma de protección de las aves guaneras y aumento de la produción de las aves guaneras.
    [Show full text]