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1. The Breeding and Feeding Characteristics of Darwin's Finches on Isla Genovesa, Galapagos

Author:
P. R. Grant; B. R. Grant
Source:
Ecological monographs 1980 v.50 no.3 pp. 381-410
ISSN:
0012-9615
Subject:
Araneae; Asio; Bursera; Geospiza scandens; Opuntia; arthropods; beak; body size; breeding; breeding season; cacti and succulents; diet; eggs; fledglings; food availability; food production; fruits; nesting; nestlings; nests; oviposition; parents; predation; rain; reproductive success; reproductive traits; seasonal variation; seeds
Abstract:
... The breeding and feeding of four species of finches were studied on Isla Genovesa, Galapagos from January to May 1978. Food supply and finch diets were studied in the nonbreeding season (November) as well. The species in order of decreasing body size were Geospiza magnirostris, G. conirostris, G. difficilis, and Certhidea olivacea. Initiation of breeding was not a simple function of body size; the ...
DOI:
10.2307/2937257

2. Nocturnal Singing in Grassland Birds

Author:
Walk Jeffery W.; Kershner Eric L.; Warner Richard E.
Source:
Wilson bulletin 2000 v.112 no.2 pp. 289-292
ISSN:
0043-5643
Subject:
Ammodramus; Asio; Cistothorus; Scolopax; birds; breeding; grasslands; surveys; Illinois
Abstract:
... We conducted unlimited radius point counts from March––July 1999 at sunrise, dusk, and night to document the relative frequency of nocturnal singing by grassland birds at Prairie Ridge State Natural Area, Jasper County, Illinois. Most grassland species were recorded singing at all times of day, but least commonly at night. Short-eared Owls (Asio flammeus) and American Woodcock (Scolopax minor) wer ...
DOI:
10.1676/0043-5643(2000)112[0289:NSIGB]2.0.CO;2

3. Grassland birds orient nests relative to nearby vegetation

Author:
HOEKMAN STEVEN T.; BALL I. J.; FONDELL THOMAS F.
Source:
Wilson bulletin 2002 v.114 no.4 pp. 450-456
ISSN:
0043-5643
Subject:
Anas discors; Anas platyrhynchos; Asio; breeding season; ducks; grasslands; microhabitats; nesting sites; nests; seasonal variation; solar radiation; vegetation index; Montana
Abstract:
... We studied orientation of nest sites relative to nearby vegetation for dabbling ducks (Cinnamon Teal, Anas cyanoptera; Blue-winged Teal, A. discors; Gadwall, A. strepera; Mallard, A. platyrhynchos; and Northern Shoveler, A. clypeata) and Short-eared Owls (Asio flammeus) in ungrazed grassland habitat during 1995––1997 in westcentral Montana. We estimated an index of vegetation height and density in ...
DOI:
10.1676/0043-5643(2002)114[0450:GBONRT]2.0.CO;2

4. Density and habitat use by owls in two Amazonian forest types

Author:
Henrique Borges Sérgio; Magalli Henriques Luiza; Carvalhaes André
Source:
Journal of field ornithology 2004 v.75 no.2 pp. 176-182
ISSN:
0273-8570
Subject:
Asio; Otus; Strix; forest types; habitat preferences; habitats; Amazonia
Abstract:
... We conducted a short-term study on density and habitat use in an Amazonian owl assemblage. The census was conducted in terra-firme forest and black-water flooded forest or igapó forest. Six owl species were recorded, the Tropical Screech-owl (Otus choliba), the Tawny-bellied Owl (O. watsonii), the Black-banded Owl (Strix huhula), the Spectacled Owl (Pulsatrix perspicillata), the Ferruginous Pygmy- ...
DOI:
10.1648/0273-8570(2004)075[0176:DAHUBO]2.0.CO;2

5. Breeding ecology of the puaiohi (myadestes palmeri)

Author:
SNETSINGER THOMAS J.; HERRMANN CHRISTINA M.; HOLMES DAWN E.; HAYWARD CHRISTOPHER D.; FANCY STEVEN G.
Source:
Wilson bulletin 2005 v.117 no.1 pp. 72-84
ISSN:
0043-5643
Subject:
Asio; Rattus rattus; breeding; breeding season; carrying capacity; clutch size; fledglings; nesting; nests; predation; rats; Kauai
Abstract:
... We studied the breeding ecology of the critically endangered Puaiohi (Myadestes palmeri), a poorly known Hawaiian thrush endemic to the island of Kauai. From 1996 through 1998, we monitored 96 active nests over the course of three breeding seasons. Mean clutch size was 2.0, and pairs produced an average of 1.5 fledglings/successful nest. Pairs renested after failure and some raised multiple broods ...
DOI:
10.1676/04-049

6. Spotlight surveys for grassland owls on san clemente island, california

Author:
CONDON ANNE M.; KERSHNER ERIC L.; SULLIVAN BRIAN L.; COOPER DOUGLASS M.; GARCELON DAVID K.
Source:
Wilson bulletin 2005 v.117 no.2 pp. 177-184
ISSN:
0043-5643
Subject:
Asio; Athene cunicularia; Tyto alba; birds; geographical distribution; grasslands; population dynamics; surveys; California
Abstract:
... According to Breeding Bird Survey data, grassland birds are among the most imperiled species in North America. Within this group, grassland owls show steep population declines across the United States. Despite these declines, questions still remain regarding the seasonal and geographic distribution of grassland owls. On San Clemente Island (SCI), California, grassland owls are known to occur, but ...
DOI:
10.1676/03-083

7. Aggressive behaviour in Montagu’s harrier Circus pygargus during the courtship period

Author:
Jarosław Wiącek
Source:
Biologia 2006 v.61 no.5 pp. 593-595
ISSN:
1336-9563
Subject:
Asio; Buteo buteo; Circus aeruginosus; Corvus corone; Falco; Numenius; Pica pica; aggression; antipredatory behavior; breeding; courtship; crows; females; foraging; males; marshes; recreation; territoriality; Poland
Abstract:
... Aggressive behaviour of Montagu’s harrier was observed during the pre-laying period in the 1992–1995 seasons on the calcareous marshes of Chelm in Eastern Poland. In total, 435 flights performed by 24 pairs of individually marked harriers were analysed. All flights were performed in relation to the territory of defence. Males performed 61% of aggressive interactions while females performed 39%. In ...
DOI:
10.2478/s11756-006-0095-8

8. The diet of the Long-eared Owls, Asio otus, in the desert of northwest China

Author:
Shao, M.; Liu, N.
Source:
Journal of arid environments 2006 v.65 no.4 pp. 673-676
ISSN:
0140-1963
Subject:
deserts; Asio; endangered species; wildlife food habits; rodents; China
DOI:
10.1016/j.jaridenv.2005.10.006

9. Rodent Prey of the Barn Owl Tyto alba and Short‐Eared Owl Asio flammeus During Winter in Agricultural Lands in Southern Chile

Author:
Ricardo A. Figueroa R.; Jaime R. Rau; Sonia Mayorga; David R. Martínez; E. Soraya Corales S.; Andrés Mansilla; Rodolfo Figueroa M.
Source:
Wildlife biology 2009 v.15 no.2 pp. 129-136
ISSN:
0909-6396
Subject:
Asio; Oligoryzomys longicaudatus; Rattus norvegicus; Tyto alba; agricultural land; barns; diet; indigenous species; introduced species; mice; pellets; predators; rats; trapping; winter; Chile
Abstract:
... We compared the consumption of rodent prey by barn owl Tyto alba and short‐eared owl Asio flammeus during winter in agricultural areas in southern Chile. Diets were studied on the basis of pellets collected during the winters of 1986, 1987 and 1996. Both owl species consumed a large number of different rodent prey (8–9 species), but they preyed more often on the olivaceus field mouse Abrothrix oli ...
DOI:
10.2981/08-005

10. Formation of aggregated settlements as an expression of synanthropization of the long-eared owl (Asio otus L.)

Author:
Sharikov, A. V.; Volkov, S. V.; Ivanov, M. N.; Basova, V. B.
Source:
Russian journal of ecology 2010 v.41 no.1 pp. 44-50
ISSN:
1067-4136
Subject:
landscapes; residential housing; nesting; Asio; human settlements
Abstract:
... The structure of the long-eared owl (Asio otus L.) settlements in anthropogenic landscapes has been studied in the Zhuravlinaya Rodina protected territory in the northern Moscow region in 2001-2005. The possible factors that cause the formation of such settlements have been analyzed. The differences in the breeding success between owls nesting near and away from human settlements have been estimat ...
DOI:
10.1134/S106741361001008X

11. Territorial Behavior of Short-eared Owls, Asio flammeus, at more than 1000 km North of their Current Breeding Range in Northeastern Canada: Evidence of Range Expansion?

Author:
Jean-François Therrien
Source:
Canadian field-naturalist 2010 v.124 no.1 pp. 58-60
ISSN:
0008-3550
Subject:
Asio; breeding; climate change; summer; territoriality; Arctic region; Canada
Abstract:
... A pair of Short-eared Owls was observed throughout the summer of 2008 showing territorial behavior more than 1000 km north of their known breeding range in north-eastern Canada. These observations might be related to high lemming densities and/or climate change occurring in the Arctic. ...
DOI:
10.22621/cfn.v124i1.1032

12. Effects of rodent species, seed species, and predator cues on seed fate

Author:
Kelly J. Sivy; Steven M. Ostoja; Eugene W. Schupp; Susan Durham
Source:
Acta oecologica 2011 v.37 no.4 pp. 321-328
ISSN:
1146-609X
Subject:
risk; Perognathus; seeds; Pseudoroegneria spicata; Secale cereale; nutritive value; mice; rye; vegetation; vocalization; predation; Canis latrans; indigenous species; rats; Asio; odors; Achnatherum hymenoides; Dipodomys; Vulpes vulpes
Abstract:
... Seed selection, removal and subsequent management by granivorous animals is thought to be a complex interaction of factors including qualities of the seeds themselves (e.g., seed size, nutritional quality) and features of the local habitat (e.g. perceived predator risk). At the same time, differential seed selection and dispersal is thought to have profound effects on seed fate and potentially veg ...
DOI:
10.1016/j.actao.2011.03.004

13. Some Observations of Short-eared Owl, Asio flammeus, Ecology on Arctic Tundra, Yukon, Canada

Author:
Donald G. Reid; Frank I. Doyle; Alice J. Kenney; Charles J. Krebs
Source:
Canadian field-naturalist 2011 v.125 no.4 pp. 307-315
ISSN:
0008-3550
Subject:
Asio; Dicrostonyx; Falco peregrinus; Lemmus trimucronatus; Microtus oeconomus; Vulpes lagopus; Vulpes vulpes; adults; anthropogenic activities; birds of prey; eating habits; eggs; humans; infrastructure; nesting; predation; rodents; spring; summer; tundra; Yukon Territory
Abstract:
... We investigated nesting behavior, food habits, and interspecific interactions of Short-eared Owls (Asio flammeus) within an arctic tundra raptor community on Herschel Island and Komakuk Beach, northern Yukon, Canada. Short-eared Owls were the least common nesting raptor. We found only three nests, all on Herschel Island. All nests were on relatively elevated sites with fairly substantial vegetativ ...
DOI:
10.22621/cfn.v125i4.1259

14. Assessment of toxicity and potential risk of the anticoagulant rodenticide diphacinone using Eastern screech-owls (Megascops asio)

Author:
Barnett A. Rattner; Katherine E. Horak; Rebecca S. Lazarus; Karen M. Eisenreich; Carol U. Meteyer; Steven F. Volker; Christopher M. Campton; John D. Eisemann; John J. Johnston
Source:
Ecotoxicology 2012 v.21 no.3 pp. 832-846
ISSN:
0963-9292
Subject:
Asio; Buteo; anticoagulants; body weight; dietary exposure; diphacinone; hawks; lethal dose; liver; mortality; nontarget organisms; pest control; pests; probabilistic risk assessment; risk; rodents; United States
Abstract:
... In the United States, new regulatory restrictions have been placed on the use of some second-generation anticoagulant rodenticides. This action may be offset by expanded use of first-generation compounds (e.g., diphacinone; DPN). Single-day acute oral exposure of adult Eastern screech-owls (Megascops asio) to DPN evoked overt signs of intoxication, coagulopathy, histopathological lesions (e.g., he ...
DOI:
10.1007/s10646-011-0844-5
PubMed:
22227859

15. Bibliography on birds of prey and owls in Slovakia. Part 4. Order Strigiformes, genera Tyto, Otus, Bubo, Strix, Surnia, Glaucidium, Athene, Aegolius & Asio

Author:
Marcel Uhrin; Štefan Danko; Hana Latková
Source:
Slovak raptor journal 2012 v.5 pp. 137-163
ISSN:
1338-7227
Subject:
Aegolius; Asio; Athene; Bubo; Falconiformes; Otus; Strix; Tyto; birds of prey; Slovakia
Abstract:
... The aim of the bibliography is to provide a list of publications on raptors and owls of Slovakia as well as papers of Slovak authors on these birds. The first three parts focused on genera from orders Accipitrifromes and Falconiformes is followed now by the fourth part focused on genera from Strigiformes order. In total 392 citations are listed - 242 (61.7%) scientific and research articles, 59 (1 ...
DOI:
10.2478/v10262-012-0061-z

16. Changing migration patterns of the Short-eared Owl Asio flammeus in Europe: an analysis of ringing recoveries

Author:
John Calladine; Chris du Feu; Richard du Feu
Source:
Journal of ornithology 2012 v.153 no.3 pp. 691-698
ISSN:
2193-7192
Subject:
Asio; birds; breeding; population density; temporal variation; viability; North Sea; Northern Africa; Russia; Scandinavia; United Kingdom
Abstract:
... Analysis of ring recovery data for Short-eared Owls Asio flammeus spanning 96 years, 1912–2007, identified spatial and temporal differences in migration patterns. Birds with breeding areas or natal origins in the Boreal (principally Fenno-Scandinavia) and Continental (principally central Europe) regions tended to move the greatest distances. Although birds from the North Sea littoral and Britain t ...
DOI:
10.1007/s10336-011-0786-y

17. Diet of short-eared owls Asio flammeus over seven winters in County Cork, Ireland

Author:
Chris Cullen; Patrick Smiddy
Source:
Biology and environment 2012 v.112 no.2 pp. 217-223
ISSN:
0791-7945
Subject:
Apodemus sylvaticus; Asio; Calidris; Gallinago; Rattus norvegicus; Tringa totanus; Turdus; birds of prey; chi-square distribution; diet; invertebrates; rats; shrews; small mammals; water birds; winter; Ireland
Abstract:
... Previous studies of short-eared owl Asio flammeus (Pontoppidan) diet in Ireland have all been relatively small in scale and restricted in time. A total of 759 prey items were recovered and identified for this study during six winters (2005/2006-2010/2011). A further 271 prey items collected by the same authors in 2004/2005 for a previous study makes this the largest body of work on the prey ...
DOI:
10.3318/BIOE.2012.08

18. Molecular confirmation of Trichomonas gallinae and other parabasalids from Brazil using the 5.8S and ITS-1 rRNA regions

Author:
Roselene Ecco; Ingred S. Preis; Daniel A.R. Vilela; Marcela M. Luppi; Marcelo C.C. Malta; Robert B. Beckstead; Raphaela Stimmelmayer; Richard W. Gerhold
Source:
Veterinary parasitology 2012 v.190 no.1-2 pp. 36-42
ISSN:
0304-4017
Subject:
Asio; Falco sparverius; Ramphastos; Trichomonas gallinae; birds; breathing; emaciation; feathers; genetic variation; histopathology; internal transcribed spacers; liver; muscles; pharynx; ribosomal RNA; salivation; sequence analysis; sinuses; skull; tongue; trichomoniasis; Brazil
Abstract:
... Clinical, gross, and histopathology lesions and molecular characterization of Trichomonas spp. infection were described in two striped owls (Asio (Rhinoptynx) clamator), one American kestrel (Falco sparverius), two green-winged saltators (Saltator similis), and in a toco toucan (Ramphastos toco) from Brazil. These birds presented clinical signs including emaciation, ruffled feathers, abundant sali ...
DOI:
10.1016/j.vetpar.2012.05.029
PubMed:
22749289

19. Diurnal and nocturnal ranging behaviour by moorland-breeding Short-eared Owls Asio flammeus in Scotland

Author:
John Calladine; Neil Morrison
Source:
Bird study 2013 v.60 no.1 pp. 44-51
ISSN:
1944-6705
Subject:
Asio; altitude; breeding; breeding season; diurnal activity; forestry; grazing; heathlands; nocturnal activity; population density; risk assessment; wind; Scotland
Abstract:
... Capsule The total area encapsulated by the hunting ranges of breeding Short-eared Owls Asio flammeus was broadly similar between day and night and also through the season, but activity was concentrated more on lower altitude graminoid-dominated areas during daylight and early in the breeding season.Aims To assess the representativeness of diurnal observations alone for determining ranging behaviou ...
DOI:
10.1080/00063657.2012.736471

20. First nesting records for the Short-eared Owl, Asio flammeus, on Banks Island, Northwest Territories: evidence of range expansion to arctic islands in Canada

Author:
Cynthia Marjorie Smith; Norman Andrew Lawrence; Rosemary Anne Buck
Source:
Canadian field-naturalist 2013 v.127 no.2 pp. 185-188
ISSN:
0008-3550
Subject:
Asio; breeding; islands; national parks; nests; rivers; summer; Arctic region; Northwest Territories
Abstract:
... Two Short-eared Owl, Asio flammeus, nests were discovered in the summer of 2000 along the Thomsen River in Aulavik National Park of Canada on Banks Island, Northwest Territories. One other sighting of a Short-eared Owl suggests the possibility of a third breeding pair. These nests are the first confirmed breeding evidence from islands in the Canadian Arctic Archipelago. ...
DOI:
10.22621/cfn.v127i2.1451

21. Short-Eared Owl (Asio flammeus) Occurrence at Buena Vista Grassland, Wisconsin, During 1955–2011

Author:
Johnson David H.; Swengel Scott R.; Swengel Ann B.
Source:
Journal of raptor research 2013 v.47 no.3 pp. 271-281
ISSN:
0892-1016
Subject:
Asio; Microtus; adults; breeding; breeding season; breeding sites; data collection; grasslands; nests; ornithology; pigeons; territoriality; voles; Wisconsin
Abstract:
... We assembled Short-eared Owl (Asio flammeus) abundance data from Buena Vista Grassland, Wisconsin, for the period 1955–2011, primarily from the Hamerstrom (1955–94) and Swengel (1997–2011) research teams. We also gathered owl breeding-season observation data from the Wisconsin state ornithology journal (Passenger Pigeon). We tabulated the number of owl breeding areas based on adult territoriality, ...
DOI:
10.3356/JRR-12-00006.1

22. Small mammals in the diets of the Long-eared Owl (Asio otus) and Short-eared Owl (A. flammeus) in the south of Western Siberia

Author:
T. A. Dupal; V. M. Chernyshov
Source:
Russian journal of ecology 2013 v.44 no.5 pp. 397-401
ISSN:
1067-4136
Subject:
Asio; Sorex; birds; diet; forests; habitats; mice; nesting; nests; pellets; shrews; small mammals; Siberia
Abstract:
... Diets of the Long-eared and Short-eared Owls, closely related species with overlapping ranges, have been studied in the south of Western Siberia (the Baraba Lowland) by analyzing bone remains in pellets. The results show that both species in the south of the Baraba Lowland employ similar strategies of food resource use, which, however, differ in some aspects. In the Short-eared Owl, the hunting ra ...
DOI:
10.1134/S1067413613040048

23. Nesting and non-nesting occurrence of the short-eared owl Asio flammeus in the Záhorie region (SW Slovakia)

Author:
Michal Noga; Martin Dobrý
Source:
Slovak raptor journal 2014 v.7 pp. 73-80
ISSN:
1338-7227
Subject:
Apodemus sylvaticus; Asio; birds; foraging; habitats; meadows; mice; nesting; nesting sites; probability; snow; territoriality; Hungary; Slovakia
Abstract:
... The short-eared owl is a regular migrant and hibernant in the Záhorie region (SW Slovakia), though this species mostly escapes attention. In 1998 the species was found nesting in this region, and in 2012 individuals showing territorial behaviour were regularly observed, with high probability of nesting. Nesting habitats were localities with a high representation of meadows, corresponding to the pr ...
DOI:
10.2478/srj-2013-0006

24. Genetic divergence analysis of the Common Barn Owl Tyto alba (Scopoli, 1769) and the Short-eared Owl Asio flammeus (Pontoppidan, 1763) from southern Chile using COI sequence

Author:
Nelson Colihueque; Alberto Gantz; Jaime Ricardo Rau; Margarita Parraguez
Source:
ZooKeys 2015 v.534 pp. 135-146
ISSN:
1313-2970
Subject:
Asio; Tyto alba; genetic variation; mitochondria; phylogeny; taxonomy; Argentina; Asia; Australasian region; Chile; North America; Northern European region
Abstract:
... In this paper new mitochondrial COI sequences of Common Barn Owl Tyto alba (Scopoli, 1769) and Short-eared Owl Asio flammeus (Pontoppidan, 1763) from southern Chile are reported and compared with sequences from other parts of the World. The intraspecific genetic divergence (mean p-distance) was 4.6 to 5.5% for the Common Barn Owl in comparison with specimens from northern Europe and Australasia an ...
DOI:
10.3897/zookeys.534.5953

25. Prehistoric birds from the Lake Titicaca region, Bolivia: long-term continuity and change in an Andean bird community

Author:
Steadman David W.; Hastorf Christine A.
Source:
Wilson journal of ornithology 2015 v.127 no.3 pp. 359-375
ISSN:
1559-4491
Subject:
Asio; Falco peregrinus; Fulica; Phalacrocorax; Phoenicopteridae; Podiceps; aquatic organisms; basins; bones; climate change; ducks; falcons; geese; montane forests; surveys; tropics; Andes region; Bolivia; Lake Titicaca
Abstract:
... From excavations at the Formative period (3,500 to 900 years old) Chiripa archaeological site on the southern shore of Lake Titicaca on the Bolivian altiplano (elev. 3,820 m), we identified 664 bones that represent 41 extant species of birds. Approximately 80% of the bones are from aquatic species such as coots, grebes, ducks, cormorants, and flamingos. Ten species from the bone sample (a grebe Po ...
DOI:
10.1676/14-127.1

26. Diet of Short-eared Owl Asio flammeus (Pontoppidan, 1763) in desert area at Hassi El Gara (El Golea, Algeria)

Author:
Kaltoum Djilali; Makhlouf Sekour; Karim Souttou; Labed Ababsa; Omar Guezoul; Christiane Denys; Salaheddine Doumandji
Source:
Zoology and ecology 2016 v.26 no.3 pp. 159-165
ISSN:
2165-8013
Subject:
Asio; Bufo; Columba livia; Gerbillus; Myotis; biomass; birds; diet; dry environmental conditions; mammals; pellets; spring; summer; Algeria
Abstract:
... The diet of the Short-eared Owl Asio flammeus was analysed in an arid environment in Hassi El Gara located in the southeast of El Golea (Ghardaia, Algeria). The diet was determined by analysing 138 pellets. Our data showed that the diet was dominated by mammals (Chiroptera and Rodentia). Based on relative biomass, birds were the main prey species. Mammals were the second most important prey. Mamma ...
DOI:
10.1080/21658005.2016.1184907

27. Prioritising Research in Steppe Bird Conservation: A Literature Survey

Author:
Morales Manuel B.; Traba Juan
Source:
Ardeola 2016 v.63 no.1 pp. 137-150
ISSN:
0570-7358
Subject:
Alectoris rufa; Ardeola; Asio; Noctua; Passeriformes; climate; conservation status; grasses; habitat preferences; habitats; monitoring; partridges; shrubs; steppes; surveys; Spain
Abstract:
... With the aim to identify priorities in conservation-oriented research, this paper reviews the level of scientific attention given to steppe birds in Spain during the last 50 years. We surveyed scientific literature using Thomson Reuters Web of Science and the journal Ardeola, using the English names of 28 species of steppe birds and the word “Spain” as search terms. Every species was assigned a Sc ...
DOI:
10.13157/arla.63.1.2016.rp6

28. Information obtained from long-term acoustic recordings: applying bioacoustic techniques for monitoring wetland birds during breeding season

Author:
Karl-Heinz Frommolt
Source:
Journal of ornithology 2017 v.158 no.3 pp. 659-668
ISSN:
2193-7192
Subject:
Asio; Botaurus stellaris; bioacoustics; birds; breeding; breeding season; monitoring; population size; vocalization; wetlands; Germany
Abstract:
... Digital acoustic recording devices allow for recording of vocal activity of animals over long time periods and therefore open new perspectives for monitoring. In this paper results of a bioacoustic monitoring of birds in a wetland restoration area in Mecklenburg-Western Pomerania in Northeastern Germany are presented. Ninety minutes of sound recordings were made daily from March 29 until May 30 20 ...
DOI:
10.1007/s10336-016-1426-3

29. Overview of occurrence of the Short-eared Owl Asio flammeus between 1995 and 2015 in Slovenia and its probable breeding in irruptive year 2008

Author:
Al Vrezec
Source:
Acrocephalus 2017 v.37 no.168-169 pp. 57-68
ISSN:
0351-2851
Subject:
Microtus; wetlands; snowpack; lakes; meadows; Asio; flocks; migratory behavior; nests; breeding; water reservoirs; winter; villages; nesting; Apodemus; small mammals; habitats; females; birds; Slovenia
Abstract:
... Between 1995 and 2015 the number of records of Short-eared Owl Asio flammeus in Slovenia increased drastically, especially after 2007, but the species occurred regularly every year since 2002. Before that, the Short-eared Owl was regarded as a very rare migrant in Slovenia. Most of the observations were from wintering and migration periods, and the most important areas for the species in Slovenia ...
DOI:
10.1515/acro-2016-0003

30. Relative Abundance, Habitat Use, and Seasonal Variability of Raptor Assemblages In the Flooding Pampas of Argentina

Author:
Alejandro V. Baladrón; María S. Bó; Marc J. Bechard; Ana I. Malizia
Source:
Journal of raptor research 2017 v.51 no.1 pp. 38-49
ISSN:
0892-1016
Subject:
Accipiter striatus; Asio; Athene cunicularia; Circus; Falco sparverius; Tyto alba; autumn; birds of prey; cropland; dominant species; ecosystems; falcons; grasslands; grazing; habitat preferences; habitats; land cover; roadsides; seasonal variation; species diversity; spring; surveys; urban areas; Argentina; Pampas region
Abstract:
... We evaluated the species composition, relative abundance, habitat use, and seasonal variability of raptor assemblages in the Flooding Pampas of Argentina, which represents the southeastern part of the biome known as the Rio de la Plata Grasslands. We conducted seasonal roadside surveys to detect raptors in modified and natural habitats over a 3-yr period from spring 2006 through autumn 2009. We cl ...
DOI:
10.3356/JRR-15-56.1

31. Reverse Size Dimorphism Estimated by an Improved Method in Eight Species of Neotropical Owls

Author:
Marcelo de Andréa Segall; Luiz Pedreira Gonzaga; Paulo Cesar Paiva
Source:
Wilson journal of ornithology 2017 v.129 no.4 pp. 883-890
ISSN:
1559-4491
Subject:
Asio; Athene cunicularia; Strix; Tyto alba; birds of prey; confidence interval; females; principal component analysis; sexual dimorphism; Brazil
Abstract:
... .—Male birds of prey are usually smaller than females, known as “Reverse Size Dimorphism” (RSD). We quantified sexual size dimorphism in species that occur in Brazil, and suggest a bootstrap-based approach that allows an estimate of confidence intervals for dimorphism indices. We used body mass, total length, and wing length, measured from museum specimens and a few live birds, to quantify size. W ...
DOI:
10.1676/16-068.1

32. Seasonal Movements of the Short-Eared Owl (Asio flammeus) in Western North America as Revealed by Satellite Telemetry

Author:
James A. Johnson; Travis L. Booms; Lucas H. DeCicco; David C. Douglas
Source:
Journal of raptor research 2017 v.51 no.2 pp. 115-128
ISSN:
0892-1016
Subject:
Asio; adults; autumn; breeding sites; habitats; latitude; longitude; migratory behavior; philopatry; satellites; spring; telemetry; wintering grounds; Alaska; California; Great Plains region; Gulf of Alaska; Kansas; Montana; Rocky Mountain region; Texas
Abstract:
... The Short-eared Owl (Asio flammeus) is a widespread raptor whose abundance and distribution fluctuates in response to the varying amplitudes of its prey, which are predominately microtines. Previous efforts to describe the seasonal movements of Short-eared Owls have been hindered by few band recoveries and the species' cryptic and irruptive behavior. We attached satellite transmitters to adult Sho ...
DOI:
10.3356/JRR-15-81.1

33. Wintering ecology and nomadic movement patterns of Short-eared Owls Asio flammeus on a subtropical island

Author:
Wei Tseng; Wen-Loung Lin; Si-Min Lin
Source:
Bird study 2017 v.64 no.3 pp. 317-327
ISSN:
1944-6705
Subject:
Asio; airports; breeding sites; grasslands; habitats; home range; landscapes; philopatry; radio; radio transmitters; risk; roosting behavior; sex ratio; trapping; wintering grounds; Taiwan
Abstract:
... Capsule: Short-eared Owls Asio flammeus showed a female-biased sex ratio in their southernmost wintering grounds in Oriental Asia. This is the first description of a nomadic movement pattern in this area. Aims: To investigate the sex ratio, movement patterns, home range size and habitat preference of non-breeding Short-eared Owls in subtropical Taiwan. Methods: Eleven Short-eared Owls were radio t ...
DOI:
10.1080/00063657.2017.1358253

34. Effects of episodic bamboo mast seeding on top predators in the southern Andes

Author:
Valeria Ojeda; Laura Chazarreta
Source:
Austral ecology 2018 v.43 no.6 pp. 719-729
ISSN:
1442-9985
Subject:
Asio; Chusquea culeou; Strix; Tyto alba; bamboos; birds of prey; carnivores; community structure; foraging; forests; prediction; rodents; sowing; territoriality; Africa; Andes region; Argentina; Asia
Abstract:
... Woody bamboos that undergo masting on a cyclic basis constitute large‐scale endogenous disturbances in forests of America, Africa and Asia, driving long‐ and short‐term effects on community structure and dynamics. Among the transient effects of these nonequilibrial phenomena are rodent outbreaks whose potential bottom‐up consequences on top predators have never been explored. We investigated the e ...
DOI:
10.1111/aec.12618

35. Evolutionary progression of mitochondrial gene rearrangements and phylogenetic relationships in Strigidae (Strigiformes)

Author:
Hui Kang; Bo Li; Xingna Ma; Yanchun Xu
Source:
Gene 2018 v.674 pp. 8-14
ISSN:
0378-1119
Subject:
Asio; Bayesian theory; Bubo; Otus; Strix; birds; gene duplication; gene order; gene rearrangement; mitochondria; mitochondrial genes; mitochondrial genome; phylogeny; statistical analysis; topology
Abstract:
... The bird mitogenome is generally considered to have a conservative genome size, consistent gene content, and similar gene order. As more mitogenomes are sequenced, mitochondrial (mt) gene rearrangements have been frequently identified among diverse birds. Within two genera (Bubo and Strix) of typical owls (Strigidae, Strigiformes), the rearrangement of the mt gene has been a subject of debate. In ...
DOI:
10.1016/j.gene.2018.06.066

36. Floreana Island re-colonization potential of the Galápagos short-eared owl (Asio flammeus galapagoensis)

Author:
Sarah Schulwitz; Paula A. Castaño; Denis Mosquera; Milton Chugcho; Karl J. Campbell; Jeff A. Johnson
Source:
Conservation genetics 2018 v.19 no.1 pp. 193-205
ISSN:
1566-0621
Subject:
Asio; baits; biodiversity; captive animals; gene flow; invasive species; islands; loci; managers; microsatellite repeats; mitochondrial DNA; morphometry; poisoning; risk; rodenticides; rodents; Galapagos Islands
Abstract:
... Non-native invasive species threaten Galápagos’ endemic biodiversity, and increasing efforts are underway to protect its species from further harm. One such project is focused on the eradication of invasive rodents using rodenticide bait on Floreana, the archipelago’s sixth largest island. Short-eared owls (Asio flammeus galapagoensis) that consume poisoned rodents will, therefore, be at risk of s ...
DOI:
10.1007/s10592-017-1007-x

37. Extensive paraphyly in the typical owl family (Strigidae)

Author:
Jessie F. Salter; Carl H. Oliveros; Peter A. Hosner; Joseph D. Manthey; Mark B. Robbins; Robert G. Moyle; Robb T. Brumfield; Brant C. Faircloth
Source:
Auk 2019 v.137 no.1 pp. 1-15
ISSN:
1938-4254
Subject:
Asio; Athene; Bubo; DNA; Ninox; Otus; Strix; analytical methods; mitochondria; mitochondrial genes; mitochondrial genome; nucleotide sequences; paraphyly; polyphyly; taxonomic revisions
Abstract:
... The typical owl family (Strigidae) comprises 194 species in 28 genera, 14 of which are monotypic. Relationships within and among genera in the typical owls have been challenging to discern because mitochondrial data have produced equivocal results and because many monotypic genera have been omitted from previous molecular analyses. Here, we collected and analyzed DNA sequences of ultraconserved el ...
DOI:
10.1093/auk/ukz070

38. The use of sulfur hexafluoride microbubbles for contrast‐enhanced ocular ultrasonography of the pecten oculi in birds

Author:
Thiago Alegre Coelho Ferreira; Gabrielle Fornazari; André Saldanha; Bruno Lunardeli; Bret A. Moore; Fabiano Montiani‐Ferreira
Source:
Veterinary ophthalmology 2019 v.22 no.4 pp. 423-429
ISSN:
1463-5216
Subject:
chickens; image analysis; Athene cunicularia; eyes; hawks; Psittacula; intravenous injection; Gallus gallus; microbubbles; ophthalmology; sulfur hexafluoride; Asio; roadsides; parakeets; adults; ultrasonography
Abstract:
... BACKGROUND: The pecten oculi is a vascular and pigmented structure localized within the posterior segment of all avian eyes. Its primary function is not fully understood yet. OBJECTIVE: As ultrasonography (US) is a useful imaging modality for evaluation of the pecten oculi, the objective of this study was to investigate the utility of an intravenous contrast solution of sulfur hexafluoride (SF6) m ...
DOI:
10.1111/vop.12608

39. Late Pleistocene owls (Aves, Strigiformes) from Ecuador, with the description of a new species

Author:
Gastón E. Lo Coco; Federico L. Agnolín; José Luis Román Carrión
Source:
Journal of ornithology 2020 v.161 no.3 pp. 713-721
ISSN:
2193-7192
Subject:
Asio; Athene cunicularia; Bubo virginianus; Pleistocene epoch; Tyto; burrows; females; fossils; new species; predation; Ecuador
Abstract:
... The fossil record of owls of the families Strigidae and Tytonidae in South America is poor. The aim of the present contribution is to report for the first time fossil Strigiformes from Riobamba Canton, at Chimborazo province, in Ecuador. The specimens come from a large owl burrow from Late Pleistocene beds of the Cangagua Formation. We report the finding of fossil record of Athene cunicularia and ...
DOI:
10.1007/s10336-020-01756-x

40. Mitogenome of the little owl Athene noctua and phylogenetic analysis of Strigidae

Author:
Cheng-He Sun; Hong-Yi Liu; Xiao Min; Chang-Hu Lu
Source:
International journal of biological macromolecules 2020 v.151 pp. 924-931
ISSN:
0141-8130
Subject:
Asio; Athene noctua; Bayesian theory; Bubo; DNA; Ninox; Otus; Strix; birds; forest diseases; forest trees; mitochondrial genes; mitochondrial genome; pest control; pests; phylogeny; ribosomal RNA; statistical analysis; transfer RNA
Abstract:
... New advances in molecular approaches for DNA analysis have enhanced our understanding of the phylogenetic relationship of birds. The Little Owl (Athene noctua) is of great significance for the integrated management of forest diseases and control of regional pests. Here, we sequenced and annotated the 17,772 bp complete mitogenome of A. noctua. The mitogenome encoded 37 typical mitochondrial genes: ...
DOI:
10.1016/j.ijbiomac.2020.02.238

41. Breeding Bird Occurrence Across a Gradient of Graminoid- to Shrub-Dominated Fens and Fire Histories

Author:
Jane E. Austin; Deborah A. Buhl
Source:
American midland naturalist 2021 v.185 no.1 pp. 77-109
ISSN:
0003-0031
Subject:
Ammodramus; Asio; Dolichonyx oryzivorus; Empidonax; Geothlypis trichas; Melospiza georgiana; Passerculus sandwichensis; birds; fens; fire history; graminoids; grasslands; habitats; highlands; landscapes; long term effects; models; probability; Michigan
Abstract:
... Population declines of birds affiliated with grasslands and grass-shrub habitats have been identified as a critical conservation concern. The effects of woody encroachment into grassland-dominated systems, which may contribute to species declines, has been examined mainly in upland systems. We examined occurrence of bird species across a gradient of graminoid- to shrub-dominated wetlands in the Up ...
DOI:
10.1637/0003-0031-185.1.77

42. Expert knowledge assessment of threats and conservation strategies for breeding Hen Harrier and Short-eared Owl across Europe

Author:
DARÍO FERNÁNDEZ-BELLON; JOHN LUSBY; JULES BOS; TONIO SCHAUB; ALAN MCCARTHY; ANTHONY CARAVAGGI; SANDRA IRWIN; JOHN O’HALLORAN
Source:
Bird conservation international 2021 v.31 no.2 pp. 268-285
ISSN:
1474-0001
Subject:
Asio; Circus cyaneus; afforestation; expert opinion; geographical variation; habitat conservation; habitat destruction; intensive farming; land use; nests; predation; questionnaires; weather; Europe
Abstract:
... Hen Harrier Circus cyaneus and Short-eared Owl Asio flammeus are open-country birds of prey with overlapping distributions. Although both species face similar conservation threats across their ranges, work to date has largely been undertaken at a national scale with few attempts to collate and assess factors relevant to their conservation at an international scale. Here we use an expert knowledge ...
DOI:
10.1017/S0959270920000349

43. Illegal trade in wildlife vertebrate species in the West Bank, Palestine

Author:
Elias N. Handal; Zuhair S. Amr; Walid S. Basha; Mazin B. Qumsiyeh
Source:
Journal of Asia-Pacific biodiversity(Online) 2021 v.14 no.4 pp. 636-639
ISSN:
2287-884X
Subject:
Aquila chrysaetos; Asio; Coturnix coturnix; Falco; Gazella; Hyaena hyaena; Serinus; Streptopelia turtur; Testudo graeca; biodiversity; birds; conservation status; reptiles; trade; wildlife; Palestine; West Bank
Abstract:
... A total of 79 species of local vertebrates (birds, mammals, and reptiles) are found to be in illegal trade in the West Bank, Palestine, during 2013–2020. Data were collected from visits to the animal markets in the main cities of the West Bank (Bethlehem, Hebron, Jenin, Jericho, Nablus, Ramallah, and Salfit) and from advertisements in social media. Birds were the most traded animals represented in ...
DOI:
10.1016/j.japb.2021.07.004

44. Pesticide and trace element bioaccumulation in wild owls in Brazil

Author:
Gabriela Elisa Dal Pizzol; Vitória Aquino Rosano; Elinton Rezende; Jonas Claudiomar Kilpp; Marcelo Menezes Ferretto; Enzo Mistura; Arthur Nery da Silva; Charise Dallazem Bertol; Laura Beatriz Rodrigues; Maria Tereza Friedrich; Luciana Grazziotin Rossato-Grando
Source:
Environmental science and pollution research 2021 v.28 no.28 pp. 37843-37850
ISSN:
0944-1344
Subject:
Araucaria; Asio; Tyto; abamectin; atomic absorption spectrometry; atrazine; bioaccumulation; birds of prey; cadmium; chemical pollutants; chlorpyrifos; chromium; ecological function; ecosystems; environmental quality; food chain; heart; high performance liquid chromatography; kidneys; lead; liver; nickel; pollution; research; risk; Brazil
Abstract:
... Owls are outstanding environmental quality bioindicators due to their position at the top of the food chain and susceptibility to pollutant accumulation. Exposure to chemical contaminants is often a risk for these animals. Moreover, studies addressing the bioaccumulation of trace elements and pesticide residues in tropical nocturnal raptor species are scarce. We analyzed the 26 organs (heart, live ...
DOI:
10.1007/s11356-021-13210-3

45. Representative boreal forest habitats in northern Europe, and a revised model for ecosystem management and biodiversity conservation

Author:
Håkan Berglund; Timo Kuuluvainen
Source:
Ambio 2021 v.50 no.5 pp. 1003-1017
ISSN:
0044-7447
Subject:
Asio; biodiversity conservation; boreal forests; conservation areas; conservation status; ecosystem management; forest damage; forest dynamics; forest ecosystems; models; Northern European region
Abstract:
... The natural range of variation of ecosystems provides reference conditions for sustainable management and biodiversity conservation. We review how the understanding of natural reference conditions of boreal forests in northern Europe has changed from earlier perceptions of even-aged dynamics driven by stand-replacing disturbances towards current understanding highlighting the role of non-stand-rep ...
DOI:
10.1007/s13280-020-01444-3

46. Fire Occurrence in Hemi-Boreal Forests: Exploring Natural and Cultural Scots Pine Fire Regimes Using Dendrochronology in Lithuania

Author:
Michael Manton; Charles Ruffner; Gintautas Kibirkštis; Gediminas Brazaitis; Vitas Marozas; Rūtilė Pukienė; Ekaterina Makrickiene; Per Angelstam
Source:
Land 2022 v.11 no.2 pp. -
ISSN:
2073-445X
Subject:
Asio; adaptive management; biodiversity; coniferous forests; dendrochronology; dry forests; fire frequency; fire history; fire regime; forest management; forest succession; humans; land; landscapes; models; peatlands; sustainable forestry; wood; Lithuania
Abstract:
... Fire is an important natural disturbance and a driver of hemi-boreal forest successional trajectories, structural complexity, and biodiversity. Understanding the historic fire regime is an important step towards sustainable forest management. Focusing on Lithuania’s hemi-boreal forests, we first mapped the potential natural fire regimes based on the relationship between site conditions, vegetation ...
DOI:
10.3390/land11020260