endstream endobj Get news and updates delivered to your inbox, Privacy & Terms© 2020, Seattle Aquarium is a registered 501(c)(3) nonprofit. Plunging up to 350–400 feet below the surface and remaining submerged for up to one to two minutes at a time, common murres use their wings to swim while hunting for a wide variety of fish including herring, cod, capelin and sand lance as well as crustaceans, squid and marine worms. Rather, females lay their eggs on bare rock ledges, under overhanging rocks, or on the ground. Females remain at the nesting site during this time, then return to open ocean themselves. 1 0 obj endobj Reproductive Performance, Foraging Effort, and Diet of an Apex Predator, the Common Murre, at one of the Largest Nesting Colonies in the California Current System The parents need all the help they can get in that regard: common murre colonies, known as loomeries, as so densely packed that adults actually touch each other on both sides! endobj <> endobj of diet of the Common Murre in all this species’ foraging habitats within one, mesoscale-sized re- gion-the Gulf of the Farallones, California- which undergoes marked seasonal changes in oceanographic climate. Like all auks, common murres are diving birds. endobj endobj 659 0 obj The Common (or Thin-billed) Murre, a species found in cooler, continental shelf waters of the Sub-arctic-low Arctic, is one of the most numerous marine birds in the Northern Hemisphere. They are not on the 2014 State of the Birds Watch List. <><><>522 0 R]/P 721 0 R/Pg 696 0 R/S/Link>> The parents need all the help they can get in that regard: common murre colonies, known as loomeries, as so densely packed that adults actually touch each other on both sides! <>554 0 R]/P 176 0 R/Pg 739 0 R/S/Link>> endobj <> <><><><><>501 0 R]/P 704 0 R/Pg 696 0 R/S/Link>> uuid:3a8569b2-ac02-11b2-0a00-782dad000000 endobj 651 0 obj 674 0 obj endobj 11 0 obj For the next couple of weeks, until chicks become independent, they’re cared for and fed by their fathers at sea. 652 0 obj 657 0 obj <>571 0 R]/P 223 0 R/Pg 749 0 R/S/Link>> 627 0 obj Common murres are found in both the Atlantic and Pacific oceans, in cooler northern waters. Common murre eggs also have distinctive color and markings: these variations help murre parents find their own eggs when returning from foraging at sea. Widespread on Pacific Coast from Alaska to California, but more local in the east, being found mainly off eastern Canada. <>578 0 R]/P 224 0 R/Pg 751 0 R/S/Link>> <><><><>529 0 R]/P 726 0 R/Pg 696 0 R/S/Link>> 660 0 obj endobj endobj <>568 0 R]/P 198 0 R/Pg 742 0 R/S/Link>> The eggs are so pointed at one end that they roll around in a circle when placed on a flat surface. <>574 0 R]/P 224 0 R/Pg 751 0 R/S/Link>> <><>493 0 R]/P 698 0 R/Pg 696 0 R/S/Link>> Waterbirds 22(2): 392-400, 1999 Gause's Law, or the competitive exclu-sion principle, states that in sympatry, spe-cies that are closely related will differentiate ecologically (Gause 1934). <>543 0 R]/P 175 0 R/Pg 734 0 R/S/Link>> ��X�cq$���� �~�y�]Q����� ԟ~Ӹ\ݮnRW�cGJ�H�����T4�[GJC��ǂ���j��"h:tS|, Reproductive Performance, Foraging Effort, and Diet of an Apex Predator, the Common Murre, at one of the Largest Nesting Colonies in the California Current System. Capelin and sand lances are favourite food, but what the main prey is at any one time depends much on what is available i… endobj <>557 0 R]/P 197 0 R/Pg 742 0 R/S/Link>> n�;U�)��q�O�qTA��R�>&�T�7ѥT|� <> Graceful in water...elsewhere, not so much. Learn more. 675 0 obj 667 0 obj <>390 0 R]/P 758 0 R/Pg 755 0 R/S/Link>> 663 0 obj Common Murre are numerous, but vulnerable to oil spills and gill-netting. Their bills are perfect for finding crustaceans in rocky crevices. Common murre eggs also have distinctive color and markings: these variations help murre parents find their own eggs when returning from foraging at sea. endobj Using its wings and feet, pigeon guillemots can hover underwater! <>552 0 R]/P 176 0 R/Pg 739 0 R/S/Link>> endobj 755 0 obj 6 0 obj This large auk sits upright on sea cliffs, looking like a northern version of a penguin. Common murre eggs also have distinctive color and markings: these variations help murre parents find their own eggs when returning from foraging at sea. <>540 0 R]/P 131 0 R/Pg 732 0 R/S/Link>> 2019-07-17T07:44:01-07:00 endobj <> 676 0 obj endobj Their agility in the water is contrasted by an awkward appearance while in flight or moving on land. The North American Waterbird Conservation Plan estimates a population of 4,250,000 in North America, rates the species an 11 out of 20 on the Continental Concern Score, and lists it as a Species of Moderate Concern. 650 0 obj Females lay only one egg each year. When you care for our marine environment, you’re also caring for common murres—in both the Pacific and Atlantic oceans, and even along the Washington coast! 782 0 obj x��]]o۸}���G�Q�OI�b�6M{{ѯ۸��}Ȧi�@j��[`�����zM�p4a|��2}��s���>�[/>]^��_~9}�^_^�y������j�^}��t�ח��w�7���z�Z�^|�c��|�Z_���k���Y����mZ�o�j+���Y�]��_������������/柎��{Q[�J���ܧ�1���k^\t�ͽ{��f���|������Ţ�������ܽ������m���60�T�����YU���i|}��Y�>47�ʦS�ڦ�9Ο�j��>��W����m}bg�k;���O߾��l~^�t�7s�ҋR��M���^�Ƥ8(ѪF��ڶ1}�ۡ����w�Ӌ/���?�Gi �m�X�t|�}��^�B�̜��|'���p?t�V�\"����_$���rY��lM# �9�����?|:���>Jd\�4��{���FȦ�[H�ϟ��~�s�!�T�Fh��:7 c�����A�����ԏ��)�d3��$�5ș���43��໙�>{�b��P�ڧ��(���BPo���߿}�Ej��y}��z;jF�l�|è#i��d1�d+����P�*�Y�>�� s.��E���#�[!&����Q�Q�b!���HR���Iԗ�����Η }�.u��}����}�ԅ�� <> 656 0 obj Chicks are able to walk before they can swim or fly, and parents are often seen standing between the nesting site and the cliff edge, blocking chicks from jumping off. 375 0 obj endobj 376 0 obj endobj REPRODUCTIVE PERFORMANCE, FORAGING EFFORT, AND DIET OF AN APEX PREDATOR, THE COMMON MURRE, AT ONE OF THE LARGEST NESTING COLONIES IN THE CALIFORNIA CURRENT SYSTEM by Stephanie R. Schneider APPROVED FOR THE DEPARTMENT OF MARINE SCIENCE SAN JOSÉ STATE UNIVERSITY December 2018 Birgitte I. McDonald, Ph.D. Moss Landing Marine Laboratories This large auk sits upright on sea cliffs, looking like a northern version of a penguin. <><><>536 0 R]/P 730 0 R/Pg 696 0 R/S/Link>> endobj 673 0 obj It swims and dives expertly, but its flight appears labored. 670 0 obj �-��}jc����v���j�����H�y9���k�,5,���$�t)݋�A�n��P����Ku�1«(Z/3h�|�AA�2{�>�n� C=b��;�1&�3@�S�ص�����40O��MM��3��tOn���GuO3za$�I��!閦\K���%��������jՆ�ȓ��̮�3��YY��b��[�IX�����APi]��1J2�B4J���bu(�#Ŭc�t#�� d��#l$MHKT� ��41pFi"O�4u]�Q���g=��&7�;��ȱ�]-7� *���!���Pf�4��n�p�l�����j��owߝ� endobj <>stream 邖��uF��"}!��� ��fAuT��E�������i���0��i�(�蛭ޒ�z �z;�z���6ʹ�v:N�[j��zk�N� �[W0��i����d�������� ;Q�d\��Гn��9J���N�*�pL+���Cdn�EP�b�^���b sb$��1��4���8A��M#��M�T��B�$���@uj\\������֯�VW�K��z��Z�S��BJ�h0����@������$������P�����! <>386 0 R]/P 756 0 R/Pg 755 0 R/S/Link>> 655 0 obj � ��bbS�[�GG��X�]e:Pp�t!����2��#5�+����΢�f�h�-�N{ )�uKW a�r��t#-�#�� ��J��lmӂY/�n�^�a�k���hl��:߲L����y �?DzOwfh|�m�{I�-x섅�B�@ Unlock thousands of full-length species accounts and hundreds of bird family overviews when you subscribe to Birds of the World. endobj 666 0 obj About three weeks after hatching, chicks are capable of swimming and diving—and they jump into the ocean from the cliff edge (a distance of up to 1,500 feet!) 671 0 obj Learn the scientific name, discover the habitat, diet and special characteristics of the Common Murre with the Georgia Aquarium. endobj <>547 0 R]/P 175 0 R/Pg 734 0 R/S/Link>> endobj endobj Its breeding numbers total 13 to 21 million birds, perhaps more, with 4.0 to 8.4 million in western North America and 1.2 million in eastern North America. 2 0 obj AppendPDF Pro 5.5 Linux Kernel 2.6 64bit Oct 2 2014 Library 10.1.0 endobj <>545 0 R]/P 175 0 R/Pg 734 0 R/S/Link>> application/pdf Other Birds. 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