Herring Gull (Larusargentatus) and Two Great 873 874 W

Total Page:16

File Type:pdf, Size:1020Kb

Herring Gull (Larusargentatus) and Two Great 873 874 W The Auk 111(4):873-880, 1994 ONTOGENETIC EVIDENCE FOR RELATIONSHIPS WITHIN THE LARIDAE W. PARKER CANE Departmentof Ornithology,American Museum of NaturalHistory, Central Park West at 79th Street, New York, New York 10024, USA Al•sTP,ACT.--Comparative growth patternsof selectedcranial and postcranialskeletal char- actersare used to test hypothesesof phylogeneticrelationships between the major groups within the family Laridae.The developmentof the bill in skimmersand ternsis characterized by highly nonlinearsize-dependent allometries in contrastto the relativelyconstant, linear allometricrelationship found in gulls. Thesecomparative ontogenetic trajectories thus sup- port the hypothesisthat skimmersand terns are more closelyrelated to one anotherthan either is to the gulls. The linear size-dependentallometry found throughoutdevelopment in gulls is similarto that found early in the ontogenyof all larids.In contrast,the highly nonlinearallometry which characterizesthe later stagesof developmentin ternsand skim- merssuggests additional complexity in the geneticcontrol of bill development.The more parsimoniousphylogenetic hypothesis is that the shapeof the bill in gulls and skuasis the more primitive characterstate. The bill shapein skimmersrelative to terns may reflectthe heterochronicextension of the ontogenetictrajectory characteristic of the later stagesof developmentin terns.Ontogenetic transformations found amongpostcranial characters are consistentwith the hypothesisof relationshipsbased on bill ontogenies.However, because of similar nonlinear characteristicsin both gull and tern growth trajectories,phylogenetic inferencesdrawn from the relativeontogenies of postcranialdimensions are consideredless compelling.Received 22 January1993, accepted 27 March 1993. A 1,4UMI•ERof hypothesesof phylogenetic re- the bill. Here I describethe ontogenetic trans- lationshipsamong the major groupsof birds formationsunderlying these bill-shape differ- comprisingthe Laridae(skuas, gulls, terns,and encesand examinetheir phylogeneticimpli- skimmers)have been suggested(for historical cations. Gulls and terns also can be differentiated summary,see Sibley and Ahlquist 1990). These morphometricallyby several postcranialchar- can be summarized in three phylogenetic trees acters;consequently, the phylogeneticinfer- (Fig. 1). The first hypothesis(Fig. 1A), which ences that can be derived from differences in suggeststhat the ternsand gullsare moreclose- the underlying postcranialdevelopmental tra- ly related than either is to the skuas(Stercora- jectoriesare explored. riinae) and skimmers (Rynchops),reflects the traditional classificationused by Peters (1934) and Wetmore (1960), and is supported by evi- MATERIALS AND METHODS dence from protein electrophoresis(Hackett Specimensin development series.--During the 1988, 1989)and DNA-DNA hybridization (Sibley and 1989, and 1990 breeding seasons,31 Common Tern Ahlquist 1990).Behavioral analyses (Moynihan (Sternahirundo) embryos ranging in agefrom 10 days 1959;see also Burger and Gochfeld 1990) sup- of incubationto 22 days(pipping), and 58 youngfrom port a similar relationship. In contrast,a closer 1 to 57 daysposthatching, were collected or salvaged relationshipbetween the skuasand gulls and on Great Gull Island (GGI). The island, which lies at between the skimmersand terns (Figs. lB and the eastern end of Long Island sound (72ø07'W, 1C) has been suggestedby comparative para- 41ø12'N),Suffolk Co., New York, is the siteof a long- sitology(Timmermann 1957) and an analysisof term study of reproductivesuccess in the Common Tern (Haysand Riseborough1972). Each year a team skeletal morphology (Strauch 1978). checksthe island daily, numbering new nestsand Basedon a morphometricanalysis of skeletal eggs.When chickshatch they are bandedand the characters,Schnell (1970b) felt that, pheneti- nest associationrecorded. Consequently, the age of cally, skimmers showed similarities to terns, chicks later recovered is known to within 24 h. with skimmersand terns being differentiated Forother taxa, developmental specimens consisting from gullsand skuasprimarily by charactersof of 10 Herring Gull (Larusargentatus) and two Great 873 874 w. PARKERCANE [Auk, Vol. 111 A HerringGull A Skuas Skimmers Gulls Terns Common Tern B Skuas Gulls Terns Black Skimmer Skimmers C Skimmers Terns Gulls B -- Skuas HerringGull•=••=•=•• Fig. 1. Three cladogramssummarizing alternative ' ' hypothesesof phylogeneticrelationships within the Laridae. Common Tern Black-backedGull (Larusmarinus) embryos and young were collected near or on Great Gull Island. The Black Skimmer(Rynchops niger) developmental material was obtained from six embryos and juvenile specimens housed in the anatomical collection of the American Museum of Natural History (AMNH). For freshly collected material, embryos were re- moved from the egg and, after removal of the ex- traembryonicmembrane, placed immediately into 10% BlackSkimmer'•'l buffered formalin. Larger specimenswere injected Fig. 2. Bill measurementsused. Bill shapesat about intraperitoneallywith the fixative.After 24 to 48 h time of hatching shown on left, and adults on right. (dependingon size),embryos were transferredto 70% Drawings are not to scale.(A) Upper bills with bars isopropanol.Posthatching specimens were skinned representingthe PRENAR (seeAppendix 2). (B) Man- before being placed in formalin for severaldays to dibles with SYMLEN measure indicated. one week. The few specimensthat showedabnormal osteologicaldevelopment (e.g. cranial deformitiesor abnormalnumbers of digits) have been excludedfrom Tern, one or two specimenswere measured(Appen- the analysis. dix 1). The adult Common Tern data representsthe Specimenswere clearedand stainedusing a mod- averagesof 28 male and 38 female specimens. ification of the Alcian Blue/Trypsin/Alizarin Red S Measurements.--Thebill and postcranialmeasures technique (Wasserzug1976, Dingerkus and Uhler usedare similar to thosedescribed by Schnell (1970a; 1977)in which cartilageis renderedblue and calcified see my Appendix 2 and Fig. 2). The measurements bone red. After staining, specimenswere stored in for the development series encompassboth the os- glycerinwith thymol crystalsadded to inhibit con- sifted and cartilaginousportions of all elements.All tamination. measurementswere madeusing digital calipersunder Adultspecimens.--Adult skeletal measurements were a binocular0.7 to 4.2x dissectingmicroscope equipped obtained from material housed in the anatomical col- with 10 x W.F. eyepieces.Smaller embryos were mea- lections of the AMNH, U.S. National Museum, and sured using a Bauschand Lomb 7.5 x ocular microm- CarnegieMuseum. For taxaother than the Common eter calibrated with a steel rule. October1994] ComparativeLarid Ontogenies 875 T^BLE1. Threeprincipalcomponents extracted from covariancematrix of postcranialskeletal characters ß Gull (seeAppendix 2) for adult larids(taxa in Appendix 4 o Skua 1). [] Tern ß Skimmer Variable P1 P2 P3 COR 0.26 0.15 -0.24 SCP 0.24 0.16 -0.30 ILM 0.26 0.21 0.01 ISH 0.28 0.10 0.04 SAC 0.16 0.44 0.05 FEM 0.29 0.09 -0.07 TBT 0.32 -0.17 0.15 TMT 0.36 -0.52 0.58 TOE 0.33 -0.51 -0.67 10 ' 12' ' 1•4 16 HUM 0.29 0.07 0.09 General Size RAD 0.28 0.19 0.17 CMC 0.26 0.09 0.04 Fig. 3. Logarithmof length of mandibular sym- PRX 0.21 0.29 0.05 physisrelative to generalsize (see text) for gulls,sku- Eigenvalue 1.815 0.046 0.018 as, terns, and skimmers. Solid lines are least-squares Percent trace 95.9 2.5 1.0 fits of data for terns and gulls. shown in Table 1 have been standardized to unit Various models for the use of size- or age-depen- length. Allometric coefficients(b) for the equation dent allometrictransformations in phylogeneticanal- ln(Y) = a + b In(general size) were obtained from ysishave been proposed(Alberch et al. 1979, Kluge bootstrapestimates of the reducedmajor axesfits of and Strauss1985, Kluge 1988).Here the analysisfo- the data using a FORTRAN program. cuseson size-dependentstatic (adult) and ontogenetic allometriesof individual elementsrelative to general RESULTS growth or size. I have defined the "general size" of an individual specimento be equal to the sum of the Schnell (1970a) found the primary variables logarithmicallytransformed values of 13 postcranial discriminating between terns and gulls to be measuresfor that specimenmultiplied by 0.277 (the squareroot of the inverseof the numberof variables). the length of the os premaxillaerostral to the The resultantvalue is then comparableto that which anterior edge of the nasal opening (PRENAR) would be derived from principal-componentsanal- and the length of the dentarysymphysis of the ysis in the caseof purely isometricgrowth. In such mandible (SYMLEN; see Appendix 2). The ex- analyses,the generalsize of a specimenis often con- tent to which these measuresvary acrossthe sidered equivalent to the score of the specimen on Laridaecan be seenin Figure 2. Relative to total the first principal component (PC1). In the caseof bill size, these measures in terns and skimmers isometric growth, PC1, when standardized to unit are quite large, while in gulls and skuasthey length, would have all variable coefficientsequal to are relatively small. Figure 3 shows the inter- p(-0.5)where p is the numberof variables(see Pimentel 1979:58+). Standarization of the componentsto unit specificallometric relationshipsbetween SYM- lengthhas the convenientmathematical property that LEN and general size among the Laridae. The the anglebetween vectors can be calculatedby simple adult larid taxa included in this analysis
Recommended publications
  • Order CHARADRIIFORMES: Waders, Gulls and Terns Suborder LARI
    Text extracted from Gill B.J.; Bell, B.D.; Chambers, G.K.; Medway, D.G.; Palma, R.L.; Scofield, R.P.; Tennyson, A.J.D.; Worthy, T.H. 2010. Checklist of the birds of New Zealand, Norfolk and Macquarie Islands, and the Ross Dependency, Antarctica. 4th edition. Wellington, Te Papa Press and Ornithological Society of New Zealand. Pages 191, 223 & 227-228. Order CHARADRIIFORMES: Waders, Gulls and Terns The family sequence of Christidis & Boles (1994), who adopted that of Sibley et al. (1988) and Sibley & Monroe (1990), is followed here. Suborder LARI: Skuas, Gulls, Terns and Skimmers Condon (1975) and Checklist Committee (1990) recognised three subfamilies within the Laridae (Larinae, Sterninae and Megalopterinae) but this division has not been widely adopted. We follow Gochfeld & Burger (1996) in recognising gulls in one family (Laridae) and terns and noddies in another (Sternidae). The sequence of species for Stercorariidae and Laridae follows Peters (1934) and for Sternidae follows Bridge et al. (2005). Family LARIDAE Rafinesque: Gulls Laridia Rafinesque, 1815: Analyse de la Nature: 72 – Type genus Larus Linnaeus, 1758. Genus Larus Linnaeus Larus Linnaeus, 1758: Syst. Nat., 10th edition 1: 136 – Type species (by subsequent designation) Larus marinus Linnaeus. Gavia Boie, 1822: Isis von Oken, Heft 10: col. 563 – Type species (by subsequent designation) Larus ridibundus Linnaeus. Junior homonym of Gavia Moehring, 1758. Hydrocoleus Kaup, 1829: Skizz. Entw.-Gesch. Eur. Thierw.: 113 – Type species (by subsequent designation) Larus minutus Linnaeus. Chroicocephalus Eyton, 1836: Cat. Brit. Birds: 53 – Type species (by monotypy) Larus cucullatus Reichenbach = Larus pipixcan Wagler. Gelastes Bonaparte, 1853: Journ. für Ornith.
    [Show full text]
  • Aspects of Breeding Behavior of the Royal Tern (Sterna Maxima) with Particular Emphasis on Prey Size Selectivity
    W&M ScholarWorks Dissertations, Theses, and Masters Projects Theses, Dissertations, & Master Projects 1984 Aspects of Breeding Behavior of the Royal Tern (Sterna maxima) with Particular Emphasis on Prey Size Selectivity William James Ihle College of William & Mary - Arts & Sciences Follow this and additional works at: https://scholarworks.wm.edu/etd Part of the Zoology Commons Recommended Citation Ihle, William James, "Aspects of Breeding Behavior of the Royal Tern (Sterna maxima) with Particular Emphasis on Prey Size Selectivity" (1984). Dissertations, Theses, and Masters Projects. Paper 1539625247. https://dx.doi.org/doi:10.21220/s2-4aq2-2y93 This Thesis is brought to you for free and open access by the Theses, Dissertations, & Master Projects at W&M ScholarWorks. It has been accepted for inclusion in Dissertations, Theses, and Masters Projects by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. ASPECTS OF BREEDING BEHAVIOR OF THE ROYAL TERN (STERNA MAXIMA) n WITH PARTICULAR EMPHASIS ON PREY SIZE SELECTIVITY A Thesis Presented to The Faculty of the Department of Biology The College of William and Mary in Virginia In Partial Fulfillment Of the Requirements for the Degree of Master of Arts by William J. Ihle 1984 APPROVAL SHEET This thesis is submitted in partial fulfillment of the requirements for the degree of Master of Arts 1MI \MLu Author Approved, April 1984 Mitchell A. Byrd m Stewart A. Ware R/ft R. Michael Erwin DEDICATION To Mom, for without her love and encouragement this thesis would not have been completed. FRONTISPIECE. Begging royal tern chick and its parent in the creche are surrounded by conspecific food parasites immediate!y after a feeding.
    [Show full text]
  • Morphological Variation Among Herring Gulls (Larus Argentatus) and Great Black-Backed Gulls (Larus Marinus) in Eastern North America Gregory J
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by University of New England University of New England DUNE: DigitalUNE Environmental Studies Faculty Publications Environmental Studies Department 4-2016 Morphological Variation Among Herring Gulls (Larus Argentatus) And Great Black-Backed Gulls (Larus Marinus) In Eastern North America Gregory J. Robertson Environment Canada Sheena Roul Environment Canada Karel A. Allard Environment Canada Cynthia Pekarik Environment Canada Raphael A. Lavoie Queen's University See next page for additional authors Follow this and additional works at: http://dune.une.edu/env_facpubs Part of the Ornithology Commons Recommended Citation Robertson, Gregory J.; Roul, Sheena; Allard, Karel A.; Pekarik, Cynthia; Lavoie, Raphael A.; Ellis, Julie C.; Perlut, Noah G.; Diamond, Antony W.; Benjamin, Nikki; Ronconi, Robert A.; Gilliland, Scott .;G and Veitch, Brian G., "Morphological Variation Among Herring Gulls (Larus Argentatus) And Great Black-Backed Gulls (Larus Marinus) In Eastern North America" (2016). Environmental Studies Faculty Publications. 22. http://dune.une.edu/env_facpubs/22 This Article is brought to you for free and open access by the Environmental Studies Department at DUNE: DigitalUNE. It has been accepted for inclusion in Environmental Studies Faculty Publications by an authorized administrator of DUNE: DigitalUNE. For more information, please contact [email protected]. Authors Gregory J. Robertson, Sheena Roul, Karel A. Allard, Cynthia Pekarik, Raphael A. Lavoie, Julie C. Ellis, Noah G. Perlut, Antony W. Diamond, Nikki Benjamin, Robert A. Ronconi, Scott .G Gilliland, and Brian G. Veitch This article is available at DUNE: DigitalUNE: http://dune.une.edu/env_facpubs/22 Morphological Variation Among Herring Gulls (Larus argentatus) and Great Black-Backed Gulls (Larus marinus) in Eastern North America Author(s): Gregory J.
    [Show full text]
  • US Fish & Wildlife Service Seabird Conservation Plan—Pacific Region
    U.S. Fish & Wildlife Service Seabird Conservation Plan Conservation Seabird Pacific Region U.S. Fish & Wildlife Service Seabird Conservation Plan—Pacific Region 120 0’0"E 140 0’0"E 160 0’0"E 180 0’0" 160 0’0"W 140 0’0"W 120 0’0"W 100 0’0"W RUSSIA CANADA 0’0"N 0’0"N 50 50 WA CHINA US Fish and Wildlife Service Pacific Region OR ID AN NV JAP CA H A 0’0"N I W 0’0"N 30 S A 30 N L I ort I Main Hawaiian Islands Commonwealth of the hwe A stern A (see inset below) Northern Mariana Islands Haw N aiian Isla D N nds S P a c i f i c Wake Atoll S ND ANA O c e a n LA RI IS Johnston Atoll MA Guam L I 0’0"N 0’0"N N 10 10 Kingman Reef E Palmyra Atoll I S 160 0’0"W 158 0’0"W 156 0’0"W L Howland Island Equator A M a i n H a w a i i a n I s l a n d s Baker Island Jarvis N P H O E N I X D IN D Island Kauai S 0’0"N ONE 0’0"N I S L A N D S 22 SI 22 A PAPUA NEW Niihau Oahu GUINEA Molokai Maui 0’0"S Lanai 0’0"S 10 AMERICAN P a c i f i c 10 Kahoolawe SAMOA O c e a n Hawaii 0’0"N 0’0"N 20 FIJI 20 AUSTRALIA 0 200 Miles 0 2,000 ES - OTS/FR Miles September 2003 160 0’0"W 158 0’0"W 156 0’0"W (800) 244-WILD http://www.fws.gov Information U.S.
    [Show full text]
  • Status and Distribution of the Laridae in Wyoming Through 1986
    Great Basin Naturalist Volume 54 Number 4 Article 6 10-25-1994 Status and distribution of the Laridae in Wyoming through 1986 Scott L. Findholt Wyoming Game and Fish Department, Lander, Wyoming Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation Findholt, Scott L. (1994) "Status and distribution of the Laridae in Wyoming through 1986," Great Basin Naturalist: Vol. 54 : No. 4 , Article 6. Available at: https://scholarsarchive.byu.edu/gbn/vol54/iss4/6 This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Creat Basin Naturalist 54(4), e 1994, pp. 34:2:-350 STATUS AD DISTRIBUTIO OF THE LARIDAE IN WYOMI 'G THROUGH 1986 Scott L. Findhoh1 A5~TR.-\n.-To date, 17 species of Laridae have been reported in Wyoming. Six of these species have known breed· ing populations in the state; the Rjng~hilled Gull (Lams delalkuren.sis), Califomia Gull (Larm colifamicus), Herring Gull (Lams argentatus), Caspian Tern {Sterna caspia), Forster's Tern (Stemaforsteri), and Black Tern (Chlidonias niger). Of these species, the California Cull is the most abundant and widespread. In 1984 approximately 1300 nests existed in \Vyoming at six breeding locations consisting of 10 different colonies. In contrast, only smllll breeding populations have been discovered for the remaining five species. The Herring Gull is the most recent addition among Laridae known to nest in Wyoming.
    [Show full text]
  • 1. Background EAAFP Seabird Species Prioritization Project 2015
    Coordinating Seabird Conservation along the East Asian-Australasian Flyway Mayumi SATO1, Yat-Tung YU2, Mark CAREY3, Paul O’NEILL3 1. BirdLife International Tokyo, 2. Hong Kong Bird Watching Society, 3. Department of the Environment, Australian Government [email protected] 1. Background The East Asian-Australasian Flyway Partnership Seabird Working Group East Asian-Australasian Flyway (EAAF) is one of nine major migratory Over 150 seabird species inhabit the EAAF, some which have long trans- routes, extending from arctic Russia and Alaska through South-East and equatorial migration routes while others move at a smaller regional scale. East Asia to Australia and New Zealand. The East Asian-Australasian Although some species have very large populations, many species are Flyway Partnership (EAAFP) was established in 2006 as an informal, declining or are facing a high risk of extinction due to several ongoing voluntary international framework aimed at coordinating the conservation threats at their breeding and wintering sites. To achieve positive for migratory waterbirds and their habitat. conservation outcomes, a joint and equal responsibility for the conservation of seabirds is urgently required across the region. Unfortunately, Partners National governments (17) IGOs (6) conservation, management, education, and research activities for seabirds in International NGOs (10) the EAAF have lacked coordination in terms of objectives, field methods, International private enterprise (1) reporting and information exchange. The EAAFP Seabird
    [Show full text]
  • Fish Prey of the Black Skimmer Rynchops Niger at Mar Chiquita, Buenos Aires Province, Argentina
    199 FISH PREY OF THE BLACK SKIMMER RYNCHOPS NIGER AT MAR CHIQUITA, BUENOS AIRES PROVINCE, ARGENTINA ROCÍO MARIANO-JELICICH, MARCO FAVERO & MARÍA PATRICIA SILVA Laboratorio de Vertebrados, Departamento de Biología, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3250 (B76002AYJ), Mar del Plata, Buenos Aires, Argentina ([email protected]) Received 13 September 2002, accepted 20 February 2003 SUMMARY MARIANO-JELICICH, R., FAVERO, M. & SILVA, M.P. 2003. Fish prey of the Black Skimmer Rynchops niger at Mar Chiquita, Buenos Aires Province, Argentina. Marine Ornithology 31: 199-202. We studied the diet of the Black Skimmer Rynchops niger during the non-breeding season (austral summer-autumn 2000) by analyzing 1034 regurgitated pellets from Mar Chiquita, Buenos Aires Province, Argentina. Fish was the main prey, with five species identified: Odontesthes argentinensis, O. incisa, Anchoa marinii, Engraulis anchoita and Pomatomus saltatrix. O. incisa and O. argentinensis were present in all the sampled months, showing also larger values of occurrence, numerical abundance and importance by mass than other items. The average size of the fish was 73±17 mm in length and 2.2±1.7 g in mass. Significant differences were observed in the comparison of the occurrence, importance by number and by mass throughout the study period. The presence of fish in the diet of the Black Skimmer coincides with a study carried out on the North American subspecies. Our analysis of the diet suggests that skimmers use both estuarine and marine areas when foraging. Keywords: Black Skimmer, Rynchops niger,Argentina, South America, diet INTRODUCTION METHODS Black Skimmers Rynchops niger are known by the morphological Study area characteristics of the bill and their particular feeding technique, We studied the diet of Black Skimmers by analyzing 1034 skimming over the water surface to catch fish and other prey.
    [Show full text]
  • Nest Spacing in Elegant Terns: Hexagonal Packing Revisited Charles T
    WESTERN BIRDS Volume 39, Number 2, 2008 NEST SPACING IN ELEGANT TERNS: HEXAGONAL PACKING REVISITED CHARLES T. COLLINS and MICHAEL D. TAYLOR, Department of Biological Sci- ences, California State University, Long Beach, California 90840 (current address of Taylor: Santiago Canyon College, 8045 East Chapman Ave., Orange, California 92869); [email protected] ABSTRACT: Within an important breeding colony in southern California, Elegant Terns (Thalasseus elegans) nest in one to several tightly packed clusters. Inter-nest distances within these clusters average 31.2 cm. This value is less than that reported for the larger-bodied Royal Tern (T. maximus) and Great Crested Tern (T. bergii). For Elegant Terns, the modal number of adjacent nests was six (range 5–7). This type of nest arrangement has been previously described as hexagonal packing and now appears to be typical of all Thalasseus terns for which data are available. Many seabirds nest in large, often traditional, colonies (Coulson 2002, Schreiber and Burger 2002). The ontogeny of annual colony formation has been reviewed by Kharitonov and Siegel-Causey (1988), and the evolution- ary processes which have led to coloniality have been considered by a number of authors (Lack 1968, Fischer and Lockley 1974, Wittenburger and Hunt 1985, Siegel-Causey and Kharitonov 1990, Coulson 2002). Seabird colonies may be rather loosely organized aggregations of breeding pairs of one to several species at a single site. At the other extreme, they may be dense, tightly packed, largely monospecific clusters where distances between nests are minimal. A graphic example of the latter is the dense clustering of nests recorded for several species of crested terns (Buckley and Buckley 1972, 2002, Hulsman 1977, Veen 1977, Symens and Evans 1993, Burness et al.
    [Show full text]
  • International Black-Legged Kittiwake Conservation Strategy and Action Plan Acknowledgements Table of Contents
    ARCTIC COUNCIL Circumpolar Seabird Expert Group July 2020 International Black-legged Kittiwake Conservation Strategy and Action Plan Acknowledgements Table of Contents Executive Summary ..............................................................................................................................................4 CAFF Designated Agencies: Chapter 1: Introduction .......................................................................................................................................5 • Norwegian Environment Agency, Trondheim, Norway Chapter 2: Ecology of the kittiwake ....................................................................................................................6 • Environment Canada, Ottawa, Canada Species information ...............................................................................................................................................................................................6 • Faroese Museum of Natural History, Tórshavn, Faroe Islands (Kingdom of Denmark) Habitat requirements ............................................................................................................................................................................................6 • Finnish Ministry of the Environment, Helsinki, Finland Life cycle and reproduction ................................................................................................................................................................................7 • Icelandic Institute of Natural
    [Show full text]
  • Mute Swan (Cygnus Olor) ERSS
    Mute Swan (Cygnus olor) Ecological Risk Screening Summary U.S. Fish & Wildlife Service, February 2011 Revised, November 2018, March 2019 Web Version, 8/16/2019 Photo: Nolasco Diaz. Licensed under CC BY-SA. Available: https://commons.wikimedia.org/wiki/File:Cisne_por_la_noche.jpg. (11/28/2018). 1 Native Range and Status in the United States Native Range According to GISD (2018), Cygnus olor is native to Australia, Austria, Belarus, Belgium, Bulgaria, Canada, Croatia, Czech Republic, Denmark, Estonia, Europe, Finland, France, Germany, Greece, Hungary, India, Ireland, Israel, Italy, Kazakhstan, Korea, Democratic People's Republic Of Korea, Republic Of Latvia, Lithuania, Republic Of Moldova, Netherlands, Norway, Poland, Portugal, Romania, Russian Federation, Serbia And Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine, and the United Kingdom. 1 From BirdLife International (2018): “NATIVE Extant (breeding) Kazakhstan; Mongolia; Russian Federation (Eastern Asian Russia); Turkmenistan Extant (non-breeding) Afghanistan; Armenia; Cyprus; Iran, Islamic Republic of; Iraq; Korea, Republic of; Kyrgyzstan; Spain Extant (passage) Korea, Democratic People's Republic of Extant (resident) Albania; Austria; Azerbaijan; Belarus; Belgium; Croatia; Czech Republic; Greece; Hungary; Ireland; Italy; Liechtenstein; Luxembourg; Macedonia, the former Yugoslav Republic of; Montenegro; Netherlands; Russian Federation; Serbia; Slovenia; Switzerland; Turkey; United Kingdom Extant Bosnia and Herzegovina; Bulgaria; China; Denmark; Estonia; Finland;
    [Show full text]
  • The Mallophaga of New England Birds James Edward Keirans Jr
    University of New Hampshire University of New Hampshire Scholars' Repository Doctoral Dissertations Student Scholarship Spring 1966 THE MALLOPHAGA OF NEW ENGLAND BIRDS JAMES EDWARD KEIRANS JR. Follow this and additional works at: https://scholars.unh.edu/dissertation Recommended Citation KEIRANS, JAMES EDWARD JR., "THE MALLOPHAGA OF NEW ENGLAND BIRDS" (1966). Doctoral Dissertations. 834. https://scholars.unh.edu/dissertation/834 This Dissertation is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. This dissertation has been microfilmed exactly as received 67—163 KEIRANS, Jr., James Edward, 1935— THE MALLOPHAGA OF NEW ENGLAND BIRDS. University of New Hampshire, Ph.D., 1966 E n tom ology University Microfilms, Inc., Ann Arbor, Michigan THE MALLOPHAGA OF NEW ENGLAND BIRDS BY JAMES E.° KEIRANS, -TK - A. B,, Boston University, i960 A. M., Boston University, 19^3 A THESIS Submitted to The University of New Hampshire In Partial Fulfillment of The Requirements for the Degree of Doctor of Philosophy Graduate School Department of Zoology June, 1966 This thesis has been examined and approved. May 12i 1966 Date ACKNOWLEDGEMENT I wish to express my thanks to Dr. James G. Conklin, Chairman, Department of Entomology and chairman of my doctoral committee, for his guidance during the course of these studies and for permission to use the facilities of the Entomology Department. My grateful thanks go to Dr. Robert L.
    [Show full text]
  • Black-Headed Gull Larus Ridibundus Feeding Sites on a Refuse Dump
    Ornis Fennica 82:166–171. 2005 Brief report Between the Herring Gull Larus argentatus and the bulldozer: Black-headed Gull Larus ridibundus feeding sites on a refuse dump Jochen Bellebaum Lehrstuhl für Allgemeine Zoologie und Neurobiologie, Ruhr-Universität, 44780 Bochum, Germany. Present address: Institut für Angewandte Ökologie GmbH, Alte Dorfstr. 11, 18184 Neu Broderstorf, Germany. [email protected] Received 1 March 2005, accepted 11 August 2005 Flock composition and interspecific dominance were studied in Black-headed Gulls and Herring Gulls wintering at an inland refuse dump in Germany. Herring Gulls were the dominant species and forced the much more numerous Black-headed Gulls to forage close to operating bulldozers. This supports the hypothesis that dominance governs the relationship between gulls feeding on refuse dumps and that this relationship is mediated through operating bulldozers favouring the smaller gull species. 1. Introduction the birds with higher competitive abilities should then be more numerous at sites with a higher food For several bird species domestic waste on refuse gain as was the case for adult Herring Gulls dis- dumps forms a man-made food resource which is placing immatures from the more profitable pri- clumped in space and time and subject to human mary feeding (Monaghan 1980). Subordinate spe- activities like bulldozer operations which may be cies and individuals in feeding flocks may also be disturbing or even harmful to birds. Feeding on re- forced to forage at sites where the risk of predation fuse by large flocks of gulls is a conspicuous ex- is higher (Krams 1996) while the dominant birds ample and also known to be highly competitive concentrate at safer sites even if food is less abun- (Monaghan 1980, Greig et al.
    [Show full text]