-The breeding biology of the Pigeon Guillemot (Cepphus columba) was studied at Cape Ulyakhpen, the Chukotka Peninsula, Russia, in 1988-1990. In 1989 the bulk of Pigeon Guillemot population arrived in the vicinity of the colonies on the south coast of the peninsula in late April. In 1989 and 1990, the median dates of laying, hatching and fledging were 23 and 20 June; 20 and 17 July; 25 and 19 August, respectively. The average clutch size was 1.77 ? 0.42 eggs, with the average egg dimensions, 61.2 ? 2.1 mm and 41.1 ? 1.3 mm. Replacement clutches were initiated on average 12.3 ? 0.8 days after losing the first clutch. During incubation eggs lost on average 15.2 ? 0.4 per cent of their initial mass. Chicks averaged 39.2 ? 3.7g at hatching and 402.4 ? 40.9 g. at fledgling (87.2% of adult mass). Chicks left their nests at the age of 36.3 ? 2.8 days. Chick mass at fledging showed no significant intraand interannual variation. Received 14January 1998, provisionally accepted 13 March 1998, accepted 20June 2000.
{"title":"Breeding Biology of the Pigeon Guillemot in the Chukotka Peninsula, Russia","authors":"N. Konyukhov","doi":"10.2307/1522183","DOIUrl":"https://doi.org/10.2307/1522183","url":null,"abstract":"-The breeding biology of the Pigeon Guillemot (Cepphus columba) was studied at Cape Ulyakhpen, the Chukotka Peninsula, Russia, in 1988-1990. In 1989 the bulk of Pigeon Guillemot population arrived in the vicinity of the colonies on the south coast of the peninsula in late April. In 1989 and 1990, the median dates of laying, hatching and fledging were 23 and 20 June; 20 and 17 July; 25 and 19 August, respectively. The average clutch size was 1.77 ? 0.42 eggs, with the average egg dimensions, 61.2 ? 2.1 mm and 41.1 ? 1.3 mm. Replacement clutches were initiated on average 12.3 ? 0.8 days after losing the first clutch. During incubation eggs lost on average 15.2 ? 0.4 per cent of their initial mass. Chicks averaged 39.2 ? 3.7g at hatching and 402.4 ? 40.9 g. at fledgling (87.2% of adult mass). Chicks left their nests at the age of 36.3 ? 2.8 days. Chick mass at fledging showed no significant intraand interannual variation. Received 14January 1998, provisionally accepted 13 March 1998, accepted 20June 2000.","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122003323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Special Review: The Wonders of Arctic Geese@@@Research on Arctic Geese","authors":"F. Cooke, F. Mehlum, J. Black, J. Madsen","doi":"10.2307/1522130","DOIUrl":"https://doi.org/10.2307/1522130","url":null,"abstract":"","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132131101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Review of the Ecology and Conservation of Caribbean Flamingos in Yucatán, Mexico@@@A Review of the Ecology and Conservation of Caribbean Flamingos in Yucatan, Mexico","authors":"G. Baldassarre, F. Arengo","doi":"10.2307/1522149","DOIUrl":"https://doi.org/10.2307/1522149","url":null,"abstract":"","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132296716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
-Although increasing numbers of Least Terns (Sterna antillarum) are nesting on artificial substrates such as dredged-material and roofs, it is not known if these colonies are successfully fledging young. Aspects of Least Tern nesting ecology were studied in 1996 and 1997 along Georgia's coast. Numbers of nests, eggs, chicks, and fledglings at beach, dredged-material, and roof colonies were surveyed using walk-through counts from late April to mid-July. Numbers of nests ranged from 6 to 929 and they did not differ between years or among habitat types. Percent hatching success ranged from 0 to 53.4% and did not differ between years or among habitat types when the data were compared among colonies. High within-habitat type variability due to catastrophic colony failures masked differences in hatching success among habitat types. Causes of mortality included tidal flooding and human disturbance on beaches; extreme temperatures, predation by raccoons, dogs, cats, birds, and fire ants on dredged-material islands; and extreme temperatures, flooding, avian predation, and falling off roofs on buildings. More than 70% of Least Terns in Georgia are nesting with -30% hatching success on flat, gravel-covered roofs. These roofs could provide better refugia and nesting habitat if they continued to be gravel-covered rather than vinyl-covered, if drains were screened, and if -30 cm parapets were constructed around the perimeter. Received 4 May 1998, resubmitted 3 March 1999, accepted 14 April 1999.
{"title":"Least Terns Nesting on Natural and Artificial Habitats in Georgia, USA","authors":"M. Krogh, S. Schweitzer","doi":"10.2307/1522218","DOIUrl":"https://doi.org/10.2307/1522218","url":null,"abstract":"-Although increasing numbers of Least Terns (Sterna antillarum) are nesting on artificial substrates such as dredged-material and roofs, it is not known if these colonies are successfully fledging young. Aspects of Least Tern nesting ecology were studied in 1996 and 1997 along Georgia's coast. Numbers of nests, eggs, chicks, and fledglings at beach, dredged-material, and roof colonies were surveyed using walk-through counts from late April to mid-July. Numbers of nests ranged from 6 to 929 and they did not differ between years or among habitat types. Percent hatching success ranged from 0 to 53.4% and did not differ between years or among habitat types when the data were compared among colonies. High within-habitat type variability due to catastrophic colony failures masked differences in hatching success among habitat types. Causes of mortality included tidal flooding and human disturbance on beaches; extreme temperatures, predation by raccoons, dogs, cats, birds, and fire ants on dredged-material islands; and extreme temperatures, flooding, avian predation, and falling off roofs on buildings. More than 70% of Least Terns in Georgia are nesting with -30% hatching success on flat, gravel-covered roofs. These roofs could provide better refugia and nesting habitat if they continued to be gravel-covered rather than vinyl-covered, if drains were screened, and if -30 cm parapets were constructed around the perimeter. Received 4 May 1998, resubmitted 3 March 1999, accepted 14 April 1999.","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114584766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
-In 1992, as part of an integrated Piping Plover (Charadrius melodus) recovery plan, the U.S. National Park Service initiated a long-term gull control program to reduce nesting by Herring and Great Black-backed gulls (Larus argentatus and L. marinus) at Breezy Point, western Long Island, New York. An estimated 600 pairs of the two species nested in an area of about 50 acres. Gull management included discharging pyrotechnics to harass gulls and keep them off the nesting areas prior to the onset of breeding, and the physical destruction of all gull nests and eggs in the colony. This program was non-lethal to adult gulls. From 1993 to 1996, we found no evidence that discharging pyrotechnics at the colony site prior to egg-laying reduced the daily numbers of loafing gulls. Gulls appeared to habituate to the pyrotechnics and to our activities as the day (morning to evening) and season progressed. The physical destruction of nests and eggs was an effective method to eliminate the production of fledglings and eventually, starting three years after gull management began, reduced the number of nesting attempts 60%, from 742 total clutches in 1994 to 282 in 1998. Destroying gull clutches was an effective (albeit slow) method to control and reduce nesting by Herring and Great Black-backed gulls but, since about 40 percent of the colony remains, nest destruction will need to continue for several more years if the colony is to be eliminated. Received 8 February 1999, accepted 15 April 1999.
{"title":"Results of a Seven Year Effort to Reduce Nesting by Herring and Great Black-Backed Gulls","authors":"Chris G. Olijnyk, K. Brown","doi":"10.2307/1522217","DOIUrl":"https://doi.org/10.2307/1522217","url":null,"abstract":"-In 1992, as part of an integrated Piping Plover (Charadrius melodus) recovery plan, the U.S. National Park Service initiated a long-term gull control program to reduce nesting by Herring and Great Black-backed gulls (Larus argentatus and L. marinus) at Breezy Point, western Long Island, New York. An estimated 600 pairs of the two species nested in an area of about 50 acres. Gull management included discharging pyrotechnics to harass gulls and keep them off the nesting areas prior to the onset of breeding, and the physical destruction of all gull nests and eggs in the colony. This program was non-lethal to adult gulls. From 1993 to 1996, we found no evidence that discharging pyrotechnics at the colony site prior to egg-laying reduced the daily numbers of loafing gulls. Gulls appeared to habituate to the pyrotechnics and to our activities as the day (morning to evening) and season progressed. The physical destruction of nests and eggs was an effective method to eliminate the production of fledglings and eventually, starting three years after gull management began, reduced the number of nesting attempts 60%, from 742 total clutches in 1994 to 282 in 1998. Destroying gull clutches was an effective (albeit slow) method to control and reduce nesting by Herring and Great Black-backed gulls but, since about 40 percent of the colony remains, nest destruction will need to continue for several more years if the colony is to be eliminated. Received 8 February 1999, accepted 15 April 1999.","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114811856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Red-Footed Booby Use of Artificial Nesting Platforms","authors":"M. Rauzon, D. Drigot","doi":"10.2307/1522128","DOIUrl":"https://doi.org/10.2307/1522128","url":null,"abstract":"","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131769446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
-SeaWorld California (SWC) has a well established and prolific Caribbean Flamingo (Phoenicopterus ruber ruber) colony, and recently has achieved reproductive success with Lesser Flamingos (Phoeniconaias minor). In 1996, 2 Caribbean Flamingo chicks neglected by their parents were successfully hand-reared. In 1997, SWC simultaneously hand-reared 3 at-risk Caribbean Flamingos and 3 at-risk Lesser Flamingos. The latter were the first reported Lesser Flamingos successfully hand-reared in North America. Here we examine and compare incubation, food volume, hand-rearing techniques, and growth rates of the 2 species through various stages of development in the 1997 season. UNA COMPARACION ENTRE FLAMENCOS CARIBENOS Y MENORES CRIADOS A MANO Resumen.-SeaWorld California (SWC) tiene una colonia bien establecida y prolifica de flamenco caribefio (Phoenicopterus ruber ruber) y recientemente ha logrado reproducir exitosamente al flamenco menor (Phoeniconaias minor). En 1996, 2 pollos que fueron descuidados por los padres fueron criados a mano con exito. En 1997, SWC cri6 a mano simultaineamente 3 flamencos caribefios de alto riesgo y 3 flamencos menores tambien de alto riesgo. Estos filtimos son los primeros registros de flamencos menores criados a mano exitosamente en norteamerica. En este trabajo examinamos y comparamos la incubaci6n, el volumen de alimento, las tecnicas de crianza y las tasas de crecimiento de las 2 especies durante varios estadios de desarrollo en la temporada de reproducci6n de 1997.
-加利福尼亚海洋世界（SWC）拥有一个成熟而多产的加勒比火烈鸟（Phoenicopterus ruber ruber）繁殖地，最近又成功繁殖了小火烈鸟（Phoeniconaias minor）。1996年，两只被父母遗弃的加勒比火烈鸟雏鸟成功地得到人工饲养。1997年，深海世界同时人工饲养了3只濒危的加勒比火烈鸟和3只濒危的小火烈鸟。后者是北美首次成功人工饲养的小火烈鸟。在此，我们对1997年的孵化、食物量、人工饲养技术以及两个物种在不同发育阶段的生长率进行了研究和比较。Resumen.-SeaWorld California (SWC) tiene una colonia bien establecida y prolifica de flamenco caribefio (Phoenicopterus ruber ruber) y reciente ha logrado reproducir exitosamente al flamenco menor (Phoeniconaias minor).1996 年，2 只被父亲遗弃的鹦鹉被人工孵化。1997 年，SWC 同时人工孵化了 3 只高度危险的鲤鱼和 3 只同样高度危险的小型鲤鱼。这些滤光片是在北美首次用人工方法制作的男用火焰。在这项研究中，我们考察并比较了 1997 年繁殖期内这两个物种的孵化、饲养量、育雏技术和生长速度。
{"title":"Comparison of Hand-Reared Caribbean Flamingos and Lesser Flamingos at Seaworld California","authors":"Laura E. Burch, Charles Gailband","doi":"10.2307/1522165","DOIUrl":"https://doi.org/10.2307/1522165","url":null,"abstract":"-SeaWorld California (SWC) has a well established and prolific Caribbean Flamingo (Phoenicopterus ruber ruber) colony, and recently has achieved reproductive success with Lesser Flamingos (Phoeniconaias minor). In 1996, 2 Caribbean Flamingo chicks neglected by their parents were successfully hand-reared. In 1997, SWC simultaneously hand-reared 3 at-risk Caribbean Flamingos and 3 at-risk Lesser Flamingos. The latter were the first reported Lesser Flamingos successfully hand-reared in North America. Here we examine and compare incubation, food volume, hand-rearing techniques, and growth rates of the 2 species through various stages of development in the 1997 season. UNA COMPARACION ENTRE FLAMENCOS CARIBENOS Y MENORES CRIADOS A MANO Resumen.-SeaWorld California (SWC) tiene una colonia bien establecida y prolifica de flamenco caribefio (Phoenicopterus ruber ruber) y recientemente ha logrado reproducir exitosamente al flamenco menor (Phoeniconaias minor). En 1996, 2 pollos que fueron descuidados por los padres fueron criados a mano con exito. En 1997, SWC cri6 a mano simultaineamente 3 flamencos caribefios de alto riesgo y 3 flamencos menores tambien de alto riesgo. Estos filtimos son los primeros registros de flamencos menores criados a mano exitosamente en norteamerica. En este trabajo examinamos y comparamos la incubaci6n, el volumen de alimento, las tecnicas de crianza y las tasas de crecimiento de las 2 especies durante varios estadios de desarrollo en la temporada de reproducci6n de 1997.","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126072198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
-Annual mortality rates of breeding Black-legged Kittiwakes (Rissa tridactyla) have been measured from 1954 to 1998 at colonies near the mouth of the River Tyne in NE England, with most annual values in the 1530% range. Over the period, mortality rates tended to increase progressively until the mid 1980s, when they briefly fell to the levels observed in the first ten years of the study. This was followed in 1997 and 1998 by the highest mortality rates recorded, reaching 39% and 58% respectively. No other species were involved. These high mortality rates, and those in 1984-1987, appeared to be caused by toxin-producing algal blooms. The toxin is extremely poisonous, killing birds away from the colony during a single feeding trip and affected significantly more females than males (possibly because of different feeding areas or methods between the sexes). Bodies floated ashore only when on-shore winds occurred. Birds died in several spring and summer months during each of three years and in the same restricted area about seven km off-shore and in, or close to, an area used to dump human sewage. Circumstantial evidence suggests that the nutrients from the sewage may have been responsible for larger than normal blooms of algae. As a result of the mortality, colonies in the immediate area, particularly at Marsden, have declined dramatically (43% during 1992-1997 and an additional 50% during 1997-1998). In 1998, over a quarter of the remaining occupied nests were frequented by males only. Received 30 November 1998, accepted 11 January 1999
{"title":"The Annual Mortality Rate of Black-Legged Kittiwakes in NE England from 1954 to 1998 and a Recent Exceptionally High Mortality","authors":"J. Coulson, J. Strowger","doi":"10.2307/1521988","DOIUrl":"https://doi.org/10.2307/1521988","url":null,"abstract":"-Annual mortality rates of breeding Black-legged Kittiwakes (Rissa tridactyla) have been measured from 1954 to 1998 at colonies near the mouth of the River Tyne in NE England, with most annual values in the 1530% range. Over the period, mortality rates tended to increase progressively until the mid 1980s, when they briefly fell to the levels observed in the first ten years of the study. This was followed in 1997 and 1998 by the highest mortality rates recorded, reaching 39% and 58% respectively. No other species were involved. These high mortality rates, and those in 1984-1987, appeared to be caused by toxin-producing algal blooms. The toxin is extremely poisonous, killing birds away from the colony during a single feeding trip and affected significantly more females than males (possibly because of different feeding areas or methods between the sexes). Bodies floated ashore only when on-shore winds occurred. Birds died in several spring and summer months during each of three years and in the same restricted area about seven km off-shore and in, or close to, an area used to dump human sewage. Circumstantial evidence suggests that the nutrients from the sewage may have been responsible for larger than normal blooms of algae. As a result of the mortality, colonies in the immediate area, particularly at Marsden, have declined dramatically (43% during 1992-1997 and an additional 50% during 1997-1998). In 1998, over a quarter of the remaining occupied nests were frequented by males only. Received 30 November 1998, accepted 11 January 1999","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123595171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
-The fauna of Chile's Sala y Gomez island (26028'S, 105021'W) is not well known because of the island's remote location, small size, and low profile. Previous literature about the bird life of this island consists of one report based on two visits of less than three hours duration, listing 11 species of seabirds, of which seven were observed breeding. The authors of the present study remained on the island for six days, during which time we observed 14 species of birds, ten of which were nesting. Both species richness and abundance were greater than reported previously. Sala y Gomez Island has significant breeding colonies of Blue-gray Noddy (Procelsterna cerulea) and Christmas Shearwater (Puffinus nativitatis). Also we recorded for the first time nesting by small numbers of Redbilled Tropicbirds (Phaethon aethereus) and White Terns (Gygis alba). Received 29 September 1998, accepted 2 December 1998. Resumen.-La fauna que habita en la isla Sala y Gomez (26028'S, 105021'W), Chile, es escasamente conocida debido a lo remoto de esta isla, su pequefio tamafio y baja altitud. Sobre sus aves s61o existe un reporte que da cuenta de dos visitas de menos de tres hr de duraci6n. Esta nota describe la presencia de 11 especies de aves marinas, siete de ellas nidificantes. Durante nuestro estudio nosotros permanecimos seis dias en la isla, registrando 14 especies de aves, con 11 especies nidificantes. Tanto la riqueza, como las abundancias registradas por nosotros fueron mayores a las mencionadas por el reporte anterior. La isla Sala y Gomez posee importantes poblaciones reproductivas de Procelsterna cerulea y Puffinus nativitatis. Ademas en ella nidifican Nesofregettafuliginosa, Sula dactylatra, Phaethon rubricauda, Anous stolidus y Sterna fuscata. Ademais registramos por primera vez la nidificaci6n de Phaethon aethereus y Gygis alba, pero en bajo nimero.
智利Sala y Gomez岛(26028'S, 105021'W)的动物群并不为人所知，因为该岛位置偏远，面积小，而且不引人注目。先前关于该岛鸟类生活的文献包括一份基于两次不到3小时的访问的报告，列出了11种海鸟，其中7种被观察到繁殖。本研究的作者在岛上呆了六天，在此期间，我们观察了14种鸟类，其中10种正在筑巢。物种丰富度和丰度均高于文献报道。萨拉戈麦斯岛有显著的繁殖群蓝灰色鹦鹉(Procelsterna cerulea)和圣诞海鸥(Puffinus原生)。我们还首次记录到少量红嘴热带鸟(Phaethon aethereus)和白燕鸥(Gygis alba)筑巢。1998年9月29日收，1998年12月2日收。Resumen。-La fauna que habita en la isla Sala y Gomez (26028'S, 105021'W)，智利，es - casamente conocida debido a lo remoto de esta isla, su pequefiio tamafio by baja海拔。据报道，目前有561个国家的人口数量超过了人口数量、人口数量和人口数量。我不知道如何描述11种船坞的存在，我不知道如何描述船坞的存在。Durante nuestro estudio nosotros permanecimos seis dias en la isla，登记了14种植物，11种植物。Tanto la riqueza，包括大量的登记资料，包括穷人、穷人、穷人、市长和穷人的报告。La isla Sala和Gomez提出了重要的生殖问题，研究了原生海鹦(puelsterna naturatus)的繁殖问题。褐胸草属、褐胸草属、褐胸草属、褐胸草属、褐胸草属。Ademais registramos pprimeras la didificaci6 . de Phaethon aeaeus by Gygis alba, pero en bajo nimero。
{"title":"The Birds of Sala y Gomez Island, Chile","authors":"Y. Vilina, F. Gazitúa","doi":"10.2307/1522124","DOIUrl":"https://doi.org/10.2307/1522124","url":null,"abstract":"-The fauna of Chile's Sala y Gomez island (26028'S, 105021'W) is not well known because of the island's remote location, small size, and low profile. Previous literature about the bird life of this island consists of one report based on two visits of less than three hours duration, listing 11 species of seabirds, of which seven were observed breeding. The authors of the present study remained on the island for six days, during which time we observed 14 species of birds, ten of which were nesting. Both species richness and abundance were greater than reported previously. Sala y Gomez Island has significant breeding colonies of Blue-gray Noddy (Procelsterna cerulea) and Christmas Shearwater (Puffinus nativitatis). Also we recorded for the first time nesting by small numbers of Redbilled Tropicbirds (Phaethon aethereus) and White Terns (Gygis alba). Received 29 September 1998, accepted 2 December 1998. Resumen.-La fauna que habita en la isla Sala y Gomez (26028'S, 105021'W), Chile, es escasamente conocida debido a lo remoto de esta isla, su pequefio tamafio y baja altitud. Sobre sus aves s61o existe un reporte que da cuenta de dos visitas de menos de tres hr de duraci6n. Esta nota describe la presencia de 11 especies de aves marinas, siete de ellas nidificantes. Durante nuestro estudio nosotros permanecimos seis dias en la isla, registrando 14 especies de aves, con 11 especies nidificantes. Tanto la riqueza, como las abundancias registradas por nosotros fueron mayores a las mencionadas por el reporte anterior. La isla Sala y Gomez posee importantes poblaciones reproductivas de Procelsterna cerulea y Puffinus nativitatis. Ademas en ella nidifican Nesofregettafuliginosa, Sula dactylatra, Phaethon rubricauda, Anous stolidus y Sterna fuscata. Ademais registramos por primera vez la nidificaci6n de Phaethon aethereus y Gygis alba, pero en bajo nimero.","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130411071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Monteiro, J. Ramos, J. C. Pereira, P. R. Monteiro, R. S. Feio, D. Thompson, S. Bearhop, R. Furness, M. Laranjo, G. Hilton, Verónica C Neves, M. P. Groz, K. R. Thompson
-This paper reports the first comprehensive surveys of Fea's Petrel (Pterodromafeae), Bulwer's Petrel (Bulweria bulwerii), Manx Shearwater (Puffinus puffinus), Little Shearwater (Puffinus assimilis baroli) and two temporally-segregated forms of Band-rumped Storm-petrel (Oceanodroma castro) in the whole Azores archipelago, conducted from 1996 to 1998. Listening to nocturnal vocalizations was the main survey method. Breeding of Fea's Petrel was not confirmed and new sites of Bulwer's Petrel were not found (previous status: one site, 50 pairs), but previously undocumented colonies were identified for the remaining species. Manx Shearwater occurred in four colonies with 115-235 pairs (previous status: probable breeder), Little Shearwater occurred in 28 colonies with 840-1,530 pairs (previously: four locations, >150 pairs), hot-season Band-rumped Storm-petrels occurred in 5 colonies with 250-300 pairs (previously: two locations, 200 pairs) and cool-season Band-rumped Storm-petrels were found in eight locations with 665-740 pairs (previously: three locations, 600 pairs). Most colonies were confined to precipitous cliffs and islets, which may be a result of predation threats by introduced mammals. Although these surveys provided a valuable revision of the status and distribution for these species of conservation concern, further survey work is warranted and target areas are indicated. We discuss the potential and limitations of listening for nocturnal vocalizations as a method to survey and monitor shearwater and petrel populations in inaccessible habitats. Received 24 May 1999, accepted 8 July 1999.
{"title":"Status and Distribution of Fea's Petrel, Bulwer's Petrel, Manx Shearwater, Little Shearwater and Band-Rumped Storm-Petrel in the Azores Archipelago","authors":"L. Monteiro, J. Ramos, J. C. Pereira, P. R. Monteiro, R. S. Feio, D. Thompson, S. Bearhop, R. Furness, M. Laranjo, G. Hilton, Verónica C Neves, M. P. Groz, K. R. Thompson","doi":"10.2307/1522111","DOIUrl":"https://doi.org/10.2307/1522111","url":null,"abstract":"-This paper reports the first comprehensive surveys of Fea's Petrel (Pterodromafeae), Bulwer's Petrel (Bulweria bulwerii), Manx Shearwater (Puffinus puffinus), Little Shearwater (Puffinus assimilis baroli) and two temporally-segregated forms of Band-rumped Storm-petrel (Oceanodroma castro) in the whole Azores archipelago, conducted from 1996 to 1998. Listening to nocturnal vocalizations was the main survey method. Breeding of Fea's Petrel was not confirmed and new sites of Bulwer's Petrel were not found (previous status: one site, 50 pairs), but previously undocumented colonies were identified for the remaining species. Manx Shearwater occurred in four colonies with 115-235 pairs (previous status: probable breeder), Little Shearwater occurred in 28 colonies with 840-1,530 pairs (previously: four locations, >150 pairs), hot-season Band-rumped Storm-petrels occurred in 5 colonies with 250-300 pairs (previously: two locations, 200 pairs) and cool-season Band-rumped Storm-petrels were found in eight locations with 665-740 pairs (previously: three locations, 600 pairs). Most colonies were confined to precipitous cliffs and islets, which may be a result of predation threats by introduced mammals. Although these surveys provided a valuable revision of the status and distribution for these species of conservation concern, further survey work is warranted and target areas are indicated. We discuss the potential and limitations of listening for nocturnal vocalizations as a method to survey and monitor shearwater and petrel populations in inaccessible habitats. Received 24 May 1999, accepted 8 July 1999.","PeriodicalId":266321,"journal":{"name":"Waterbirds: The International Journal of Waterbird Biology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127776357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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