Winter 2021 | Vol 66 No 1
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Redalyc.Coloration Anomaly of a Male Collared Trogon (Trogon Collaris)
Acta Zoológica Mexicana (nueva serie) ISSN: 0065-1737 [email protected] Instituto de Ecología, A.C. México Eisermann, Knut; Omland, Kevin Coloration anomaly of a male Collared Trogon (Trogon Collaris) Acta Zoológica Mexicana (nueva serie), vol. 23, núm. 2, 2007, pp. 197-200 Instituto de Ecología, A.C. Xalapa, México Disponible en: http://www.redalyc.org/articulo.oa?id=57523211 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Acta Zoológica Mexicana (n.s.) 23(2): 197-200 (2007) Nota Científica COLORATION ANOMALY OF A MALE COLLARED TROGON (TROGON COLLARIS) Resumen. Reportamos la observación de un macho adulto de Trogon collaris con vientre amarillo, similar al color del vientre de Trogon violaceus o Trogon melanocephalus. El pico era de color amarillo sucio y el anillo orbital era oscuro. Con base en publicaciones sobre coloración anormal en otras especies, asumimos que fueron alteraciones genéticas o de desarrollo del individuo las que causaron el color amarillo en lugar del rojo usual del plumaje ventral. Collared Trogon (Trogon collaris) occurs in several disjunct areas from central Mexico to the northern half of South America east of the Andes (AOU 1998. Check-list of North American birds. 7th ed. AOU. Washington D.C.). At least eight subspecies are recognized (Dickinson 2003. The Howard and Moore complete checklist of the birds of the world. 3rd ed. Princeton Univ. -
Evolution of Brilliant Iridescent Feather Nanostructures
bioRxiv preprint doi: https://doi.org/10.1101/2021.05.31.446390; this version posted May 31, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Evolution of brilliant iridescent feather nanostructures 2 Klara K. Nordén1, Chad M. Eliason2, Mary Caswell Stoddard1 3 1 Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ 4 08544, USA 5 2Grainger Bioinformatics Center, Field Museum of Natural History, Chicago, IL 60605, USA 6 7 Abstract 8 The brilliant iridescent plumage of birds creates some of the most stunning color displays 9 known in the natural world. Iridescent plumage colors are produced by nanostructures in 10 feathers and have evolved in a wide variety of birds. The building blocks of these 11 structures—melanosomes (melanin-filled organelles)—come in a variety of forms, yet how 12 these different forms contribute to color production across birds remains unclear. Here, we 13 leverage evolutionary analyses, optical simulations and reflectance spectrophotometry to 14 uncover general principles that govern the production of brilliant iridescence. We find that a 15 key feature that unites all melanosome forms in brilliant iridescent structures is thin melanin 16 layers. Birds have achieved this in multiple ways: by decreasing the size of the melanosome 17 directly, by hollowing out the interior, or by flattening the melanosome into a platelet. The 18 evolution of thin melanin layers unlocks color-producing possibilities, more than doubling 19 the range of colors that can be produced with a thick melanin layer and simultaneously 20 increasing brightness. -
New Mexico Ornithological Society Field Notes
New Mexico Ornithological Society Field Notes Volume 39, Number 2, Spring 2000 NEW MEXICO ORNITHOLOGICAL SOCIETY FIELD NOTES Volume 39, Number 2, Spring 2000 1 March – 31 May 2000 A quarterly publication of the New Mexico Ornithological Society EDITORIAL STAFF Sartor O. Williams III, Editor William H. Howe, Assistant Editor EDITORIAL OFFICE Southwest Natural History Institute 1819 Meadowview Drive NW Albuquerque, New Mexico 87104-2511 ([email protected]) Reporting Observations: All individuals interested in birds in New Mexico are encouraged to submit their observations to NMOS Field Notes. Especially solicited are records of uncommon species, nesting birds, and early, late, or out-of-season/range birds. Records should be submitted in taxonomic order and should include species name, date, exact location, numbers of birds, age, sex, and color morph (if applicable), and name and contact information of observer. Details are necessary for unusual records; these may be submitted on a report form (available from the address above), but any written format is acceptable. Photographic documentation is strongly encouraged. NEW MEXICO ORNITHOLOGICAL SOCIETY (Founded 1962) The New Mexico Ornithological Society was organized to gather and disseminate accurate information concerning the bird life of New Mexico; to promote interest in and appreciation of the value of birds, both aesthetic and economic, to further effective conservation of the state’s avifauna; to facilitate opportunity for acquaintance and fellowship among those interested in birds and nature; and to issue publications as a means of furthering these ends. Membership and Subscriptions: Membership in the New Mexico Ornithological Society is open to anyone with an interest in birds. -
Ebird 101 What Ebird Can Do for You & Getting Started (This Is Not a Complete List of Everything You Can Do with Ebird, Nor Does It Answer Every Question You May Have
eBird 101 What eBird can do for you & getting started (This is not a complete list of everything you can do with eBird, nor does it answer every question you may have. If you have a question while using eBird just click HELP at the top of the page and put some key words in the ‘Have a Question?’ space. This HELP section is very easy to understand and follow.) TABLE OF CONTENTS Creating your personal eBird Account Submitting your first checklist and creating a new location Adding Data and Behavior information Uploading Pictures to Checklists Posting a Rarity Search Photo’s and Sounds Explore a Region (County) and locate hotspots Explore Hotspots Species Maps Exploring/Creating and Learning from Bar Charts o Explore Bar Charts: County o Explore Bar Charts: Hotspots Arrivals and Departures Species you need – Target Species and Rare Bird Alerts Exploring MY EBIRD – your personal data o County Life/Year/Month List o State Life/Year/Month List o Location List, o All locations where a single species was recorded o Life List for any location Sharing Checklists from MY EBIRD Using eBird Mobile on iPhone GETTING STARTED WITH eBIRD (on a computer) Creating your personal eBird Account Ready to join the eBird community and start submitting your checklists? Let’s get started. Go to www.ebird.org and select MY EBIRD and hit ENTER. On the right side find CREATE AN ACCOUNT Fill in the requested information then select CREATE ACCOUNT to complete the process. Regarding data privacy, everyone has their own viewpoint and eBird wants to honor your desires. -
'RAISED TAIL' BEHAVIOR of the COLLARED TROGON (Trogon
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/327919604 "RAISED TAIL" BEHAVIOR OF THE COLLARED TROGON (Trogon collaris) Article · September 2018 CITATION READS 1 126 1 author: Cristina Sainz-Borgo Simon Bolívar University 57 PUBLICATIONS 278 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Censo Neotropical de Aves Acuáticas en Venezuela View project Conteo de bacterias en los alimentadores artificiales de colibries View project All content following this page was uploaded by Cristina Sainz-Borgo on 25 October 2018. The user has requested enhancement of the downloaded file. Sainz-Borgo Bolet´ınSAO Vol. 27 - 2018 `Raised Tailed' behavior of the Collared Trogon (No. 1 & 2) { Pag: 1-3 `RAISED TAIL' BEHAVIOR OF THE COLLARED TROGON (Trogon collaris) DESPLIEGUE DE LA COLA LEVANTADA EN EL TROGON ACOLLARADO (Trogon collaris) Cristina Sainz-Borgo1 Abstract The `raised tail' behavior of two pairs of Collared Trogon (Trogon collaris) was observed in the Coastal Range of Venezuela. In both observations, a male and female rapidly raised their tails to a horizontal position and slowly returned them to a vertical hanging position. During these displays, both individuals simultaneously emitted loud calls approximately every 5 seconds, forming a duet. The first display lasted 30 minutes while the second lasted approximately 45 minutes. This `raised tail' behavior has been reported for several species of trogons during courtship and when mobbing a predator. Because there were no predators present during both observations, the described `raised tail' behavior was most likely a courtship display. -
TOUR REPORT Southwestern Amazonia 2017 Final
For the first time on a Birdquest tour, the Holy Grail from the Brazilian Amazon, Rondonia Bushbird – male (Eduardo Patrial) BRAZIL’S SOUTHWESTERN AMAZONIA 7 / 11 - 24 JUNE 2017 LEADER: EDUARDO PATRIAL What an impressive and rewarding tour it was this inaugural Brazil’s Southwestern Amazonia. Sixteen days of fine Amazonian birding, exploring some of the most fascinating forests and campina habitats in three different Brazilian states: Rondonia, Amazonas and Acre. We recorded over five hundred species (536) with the exquisite taste of specialties from the Rondonia and Inambari endemism centres, respectively east bank and west bank of Rio Madeira. At least eight Birdquest lifer birds were acquired on this tour: the rare Rondonia Bushbird; Brazilian endemics White-breasted Antbird, Manicore Warbling Antbird, Aripuana Antwren and Chico’s Tyrannulet; also Buff-cheeked Tody-Flycatcher, Acre Tody-Tyrant and the amazing Rufous Twistwing. Our itinerary definitely put together one of the finest selections of Amazonian avifauna, though for a next trip there are probably few adjustments to be done. The pre-tour extension campsite brings you to very basic camping conditions, with company of some mosquitoes and relentless heat, but certainly a remarkable site for birding, the Igarapé São João really provided an amazing experience. All other sites 1 BirdQuest Tour Report: Brazil’s Southwestern Amazonia 2017 www.birdquest-tours.com visited on main tour provided considerably easy and very good birding. From the rich east part of Rondonia, the fascinating savannas and endless forests around Humaitá in Amazonas, and finally the impressive bamboo forest at Rio Branco in Acre, this tour focused the endemics from both sides of the medium Rio Madeira. -
The Birds of Hacienda Palo Verde, Guanacaste, Costa Rica
The Birds of Hacienda Palo Verde, Guanacaste, Costa Rica PAUL SLUD SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY • NUMBER 292 SERIES PUBLICATIONS OF THE SMITHSONIAN INSTITUTION Emphasis upon publication as a means of "diffusing knowledge" was expressed by the first Secretary of the Smithsonian. In his formal plan for the Institution, Joseph Henry outlined a program that included the following statement: "It is proposed to publish a series of reports, giving an account of the new discoveries in science, and of the changes made from year to year in all branches of knowledge." This theme of basic research has been adhered to through the years by thousands of titles issued in series publications under the Smithsonian imprint, commencing with Smithsonian Contributions to Knowledge in 1848 and continuing with the following active series: Smithsonian Contributions to Anthropology Smithsonian Contributions to Astrophysics Smithsonian Contributions to Botany Smithsonian Contributions to the Earth Sciences Smithsonian Contributions to Paleobiology Smithsonian Contributions to Zoo/ogy Smithsonian Studies in Air and Space Smithsonian Studies in History and Technology In these series, the Institution publishes small papers and full-scale monographs that report the research and collections of its various museums and bureaux or of professional colleagues in the world cf science and scholarship. The publications are distributed by mailing lists to libraries, universities, and similar institutions throughout the world. Papers or monographs submitted for series publication are received by the Smithsonian Institution Press, subject to its own review for format and style, only through departments of the various Smithsonian museums or bureaux, where the manuscripts are given substantive review. Press requirements for manuscript and art preparation are outlined on the inside back cover. -
Ebird: a Human/Computer Learning Network for Biodiversity Conservation and Research
Proceedings of the Twenty-Fourth Innovative Appications of Artificial Intelligence Conference eBird: A Human/Computer Learning Network for Biodiversity Conservation and Research Steve Kelling, Jeff Gerbracht, and Daniel Fink Carl Lagoze Cornell Lab of Ornithology, Cornell University Information Science, Cornell University [email protected], [email protected], [email protected] [email protected] Weng-Keen Wong and Jun Yu Theodoros Damoulas and Carla Gomes School of EECS, Oregon State University Department of Computer Science, Cornell University [email protected], [email protected] [email protected], [email protected] Abstract solve [2]. Now the World Wide Web provides the In this paper we describe eBird, a citizen science project that opportunity to engage large numbers of humans to solve takes advantage of human observational capacity and machine these problems. For example, engagement can be game- learning methods to explore the synergies between human based such as FoldIt, which attempts to predict the computation and mechanical computation. We call this model a structure of a protein by taking advantage of humans’ Human/Computer Learning Network, whose core is an active puzzle solving abilities [3]; or Galaxy Zoo, which has learning feedback loop between humans and machines that engaged more than 200,000 participants to classify more dramatically improves the quality of both, and thereby than 100 million galaxies [4]. Alternatively, the Web can continually improves the effectiveness of the network as a whole. be used to engage large numbers of participants to actively Human/Computer Learning Networks leverage the contributions collect data and submit it to central data repositories. -
Ultimate Bolivia Tour Report 2019
Titicaca Flightless Grebe. Swimming in what exactly? Not the reed-fringed azure lake, that’s for sure (Eustace Barnes) BOLIVIA 8 – 29 SEPTEMBER / 4 OCTOBER 2019 LEADER: EUSTACE BARNES Bolivia, indeed, THE land of parrots as no other, but Cotingas as well and an astonishing variety of those much-loved subfusc and generally elusive denizens of complex uneven surfaces. Over 700 on this tour now! 1 BirdQuest Tour Report: Ultimate Bolivia 2019 www.birdquest-tours.com Blue-throated Macaws hoping we would clear off and leave them alone (Eustace Barnes) Hopefully, now we hear of colourful endemic macaws, raucous prolific birdlife and innumerable elusive endemic denizens of verdant bromeliad festooned cloud-forests, vast expanses of rainforest, endless marshlands and Chaco woodlands, each ringing to the chorus of a diverse endemic avifauna instead of bleak, freezing landscapes occupied by impoverished unhappy peasants. 2 BirdQuest Tour Report: Ultimate Bolivia 2019 www.birdquest-tours.com That is the flowery prose, but Bolivia IS that great destination. The tour is no longer a series of endless dusty journeys punctuated with miserable truck-stop hotels where you are presented with greasy deep-fried chicken and a sticky pile of glutinous rice every day. The roads are generally good, the hotels are either good or at least characterful (in a good way) and the food rather better than you might find in the UK. The latter perhaps not saying very much. Palkachupe Cotinga in the early morning light brooding young near Apolo (Eustace Barnes). That said, Bolivia has work to do too, as its association with that hapless loser, Che Guevara, corruption, dust and drug smuggling still leaves the country struggling to sell itself. -
The Non-Market Value of Birding Sites and the Marginal Value of Additional Species: Biodiversity in a Random Utility Model of Site Choice by Ebird Members
Ecological Economics 137 (2017) 1–12 Contents lists available at ScienceDirect Ecological Economics journal homepage: www.elsevier.com/locate/ecolecon ANALYSIS The Non-market Value of Birding Sites and the Marginal Value of Additional Species: Biodiversity in a Random Utility Model of Site Choice by eBird Members Sonja Kolstoe a,⁎,TrudyAnnCameronb a Assistant Professor of Economics, Department of Economics and Finance, Salisbury University, United States b Mikesell Professor of Environmental and Resource Economics, Department of Economics, University of Oregon, United States article info abstract Article history: The eBird database is the product of a huge citizen science project at the Cornell University Laboratory of Orni- Received 4 August 2016 thology. Members report their birding excursions both their destinations and the numbers and types of birds Received in revised form 4 December 2016 they observe on each trip. Based on home address information, we calculate travel costs for each birder for Accepted 12 February 2017 trips to alternative birding hotspots. We focus on the Pacific Northwest U.S. (Washington and Oregon states). Available online xxxx Many birders are “listers” who seek to maximize the cumulative number of species they have been able to see, JEL Classification: and each hotspot is characterized by the number of bird species expected to be present. In a random utility Q57 model of destination site choice, we allow for seasonal as well as random heterogeneity in the marginal utility Q51 per bird species. For this population of birders, marginal WTP for an additional bird species is highest in June Q54 when birds are in their mating-season plumage (at more than $3 per species per trip). -
Elegant Trogon (Trogon Elegans)
Elegant Trogon (Trogon elegans) NMPIF level: Biodiversity Conservation Concern, Level 1 (BC1) NMPIF assessment score: 16 NM stewardship responsibility: Low National PIF status: Watch List New Mexico BCRs: 34 Primary breeding habitat(s): Southwest Riparian Other habitats used: Madrean Pine-Oak Woodland (foraging) Summary of Concern Elegant Trogon is primarily a Mexican species with a limited breeding population in several mountain ranges of southeast Arizona, with at most a few pair breeding regularly in the Peloncillo Mountains of New Mexico. It requires moist riparian canyons with a sycamore component and upland areas of arid woodland. Associated Species Zone-tailed Hawk, Elf Owl (SC1), Black-chinned Hummingbird (SC2), Arizona Woodpecker (BC2), Northern Flicker, Dusky-capped Flycatcher, Hepatic Tanager, Brown-crested Flycatcher, Magnificent Hummingbird (BC2) Distribution Elegant Trogon is resident along the Pacific slope of Mexico from Sonora to Oaxaca, and in eastern Mexico from central Tamaulipas and southeast Nuevo León south to Puebla and Oaxaca (Howell and Webb 1995). A separate population is also resident in portions of Guatemala, El Salvador, and the interior of Honduras, south to Costa Rica. In summer, the breeding range extends a fairly short distance north into southeast Arizona. In New Mexico, this species is present only in the Peloncillo Mountains in southwest Hidalgo County (Kunzmann et al. 1998, Parmeter et al. 2002). Ecology and Habitat Requirements Across its range in Mexico and Central America, Elegant Trogon occupies a range of lowland, foothill and mountain habitats, including high elevation montane forests, semi-arid pine-oak woodland, lowland tropical deciduous forest and thorn forest. In southeast Arizona, where breeding populations have been studied, it is associated with sycamore- or high-elevation cottonwood-dominated riparian vegetation in a surrounding matrix of pinyon-juniper, pine-oak woodland or upland forest (Kunzmann et al. -
Bolivia: the Andes and Chaco Lowlands
BOLIVIA: THE ANDES AND CHACO LOWLANDS TRIP REPORT OCTOBER/NOVEMBER 2017 By Eduardo Ormaeche Blue-throated Macaw www.birdingecotours.com [email protected] 2 | T R I P R E P O R T Bolivia, October/November 2017 Bolivia is probably one of the most exciting countries of South America, although one of the less-visited countries by birders due to the remoteness of some birding sites. But with a good birding itinerary and adequate ground logistics it is easy to enjoy the birding and admire the outstanding scenery of this wild country. During our 19-day itinerary we managed to record a list of 505 species, including most of the country and regional endemics expected for this tour. With a list of 22 species of parrots, this is one of the best countries in South America for Psittacidae with species like Blue-throated Macaw and Red-fronted Macaw, both Bolivian endemics. Other interesting species included the flightless Titicaca Grebe, Bolivian Blackbird, Bolivian Earthcreeper, Unicolored Thrush, Red-legged Seriema, Red-faced Guan, Dot-fronted Woodpecker, Olive-crowned Crescentchest, Black-hooded Sunbeam, Giant Hummingbird, White-eared Solitaire, Striated Antthrush, Toco Toucan, Greater Rhea, Brown Tinamou, and Cochabamba Mountain Finch, to name just a few. We started our birding holiday as soon as we arrived at the Viru Viru International Airport in Santa Cruz de la Sierra, birding the grassland habitats around the terminal. Despite the time of the day the airport grasslands provided us with an excellent introduction to Bolivian birds, including Red-winged Tinamou, White-bellied Nothura, Campo Flicker, Chopi Blackbird, Chotoy Spinetail, White Woodpecker, and even Greater Rhea, all during our first afternoon.