Waterbirds最新文献_第9页

Colonization and Extirpation of Great Black-Backed Gulls (Larus marinus) Nesting on Lake Ontario and the Upper St. Lawrence River 大黑背鸥(Larus marinus)在安大略湖和上圣劳伦斯河筑巢的殖民化和灭绝

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0108

D. V. Weseloh, I. Mazzocchi, David J. Moore, C. Pekarik, Donald J. Tyerman, L. Shutt, C. Hebert, D. Crump, G. Fox, L. Harper, Karen Macdonald, Andrea Chreston, J. S. Quinn

{"title":"Colonization and Extirpation of Great Black-Backed Gulls (Larus marinus) Nesting on Lake Ontario and the Upper St. Lawrence River","authors":"D. V. Weseloh, I. Mazzocchi, David J. Moore, C. Pekarik, Donald J. Tyerman, L. Shutt, C. Hebert, D. Crump, G. Fox, L. Harper, Karen Macdonald, Andrea Chreston, J. S. Quinn","doi":"10.1675/063.045.0108","DOIUrl":"https://doi.org/10.1675/063.045.0108","url":null,"abstract":"Abstract. Colonies of Herring (Larus argentatus) and/or Ring-billed Gulls (L. delawarensis) on Lake Ontario and the upper St. Lawrence River were searched annually, 1981–2018, for nesting Great Black-backed Gulls (L. marinus). Great Black-backed Gulls nested at nine sites where both Herring and Ring-billed Gulls nested, at seven sites with only Herring Gulls, and at one site where they nested solitarily. Nests per site ranged from 1–21 on Lake Ontario and 1–5 on the St. Lawrence River. On Lake Ontario, nest numbers increased from six nests in 1981 to 51 nests in 2001 (+ 11.3%/yr), then declined to zero nests in 2008, where they have remained ever since. The decline in nesting Great Black-backed Gulls was due primarily to mortality from Type E botulism that affected that species to a greater degree than other gull species, probably because of their superior ability to dominate and scavenge toxin-laden carrion. Temporal changes in routes and efficiency of botulinum toxin transfer likely explain why Great Black-back Gulls were initially able to colonize Lake Ontario, but have undergone extirpation in recent times. Our results illustrate how changes in disease prevalence in the Great Lakes can degrade environmental quality to the extent that some species simply cannot persist.","PeriodicalId":54408,"journal":{"name":"Waterbirds","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76667118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Composition and Structure of Mixed-Species Foraging Aggregations of Waterbirds in Las Salinas, Ciénaga de Zapata, Cuba 古巴西萨帕塔省拉斯萨利纳斯地区水鸟混合觅食群的组成和结构

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0105

Alieny González, A. Rodríguez-Ochoa, L. Mugica, M. Acosta

{"title":"Composition and Structure of Mixed-Species Foraging Aggregations of Waterbirds in Las Salinas, Ciénaga de Zapata, Cuba","authors":"Alieny González, A. Rodríguez-Ochoa, L. Mugica, M. Acosta","doi":"10.1675/063.045.0105","DOIUrl":"https://doi.org/10.1675/063.045.0105","url":null,"abstract":"Abstract. Mixed-species foraging aggregations of waterbirds result from foraging and anti-predator behaviors, and understanding the dynamics of these aggregations is useful in planning the conservation of waterbirds species and understanding their ecological functions within the ecosystem. This paper describes the dynamics in composition and structure of mixed-species foraging aggregations during the wet and dry seasons in the lagoon system of Las Salinas, Ciénaga de Zapata, Cuba. We surveyed these aggregations monthly from 2009 to 2017. Aggregation structure was analysed through relative abundance per guild, percentage of presence, and participation weight and participation rate. Forty-two mixed-species foraging aggregations of waterbirds were observed throughout the study, with greater species richness (n = 12 species, confidence interval: 10–13) and number of individuals (n = 800 individuals, confidence interval: 565–1,055) in the wet season. During the dry season, the most prominent species in aggregation formation were Snowy Egrets (Egretta thula), American White Ibises (Eudocimus albus) and Roseate Spoonbills (Platalea ajaja), which have been identified as nuclear species in other studies. In the wet season, American White Pelicans (Pelecanus erythrorhynchos) appeared to be the nuclear species within aggregations, something that had not previously been described in mixed-species aggregations of waterbirds. Confirming these nuclear species at Las Salinas is an important next step, given that conservation efforts focused on nuclear species might benefit the maintenance and function of the entire assembly.","PeriodicalId":54408,"journal":{"name":"Waterbirds","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89427820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The Value and Necessity of Natural History Studies of Waterbirds 水鸟博物学研究的价值与必要性

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0102

B. Marcot, D. Gawlik, A. Yanosky, John Anderson, Ankita Gupta, K. Sundar

{"title":"The Value and Necessity of Natural History Studies of Waterbirds","authors":"B. Marcot, D. Gawlik, A. Yanosky, John Anderson, Ankita Gupta, K. Sundar","doi":"10.1675/063.045.0102","DOIUrl":"https://doi.org/10.1675/063.045.0102","url":null,"abstract":"Natural history is the study of organisms in their environments, and has an historic role as the foundation for ecological and biological sciences (e.g., Jerdon 1874). The centrality of natural history was emphasized by Elton (1927) who defined ecology as “scientific natural history.” As an accounting of the “history” of nature, natural history studies entail personal involvement; indeed, even the etymology of “history” suggests seeing, knowing, and accounting of one’s inquiries and knowledge (www.etymonline.com). In this paper, we trace the use and the scientific and social values of natural history studies, provide cautions on overreliance on technologies at the cost of personal experience of nature, suggest the potential role of natural history studies to address issues of social inequities, and conclude with support for natural history studies particularly of waterbirds to significantly contribute to community involvement and advance scientific inquiry. Natural history observations provide insight into natural phenomena and processes not necessarily requiring deep methodological scopes, intricate quantitative measurement, and statistical analysis, but still consisting of more than just a mere collection of incidental or anecdotal observations. Natural history studies require scientific rigor and must lend to repeatability, as replication is a hallmark of science, and to validation by the scientific community, and can further serve as a basis for generating hypotheses for more rigorous testing. Working at its best, natural history observation can open the door to new perspectives and relationships previously unreported and unsuspected (Ricklefs 2012).","PeriodicalId":54408,"journal":{"name":"Waterbirds","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89432270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Trophic Position of Wintering Common Loons (Gavia immer ) in Barataria Bay, Louisiana Following the Deepwater Horizon Oil Spill 路易斯安那州巴拉塔里亚湾深水地平线石油泄漏后，越冬普通潜鸟(加维亚潜水器)的营养位置

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0104

S. Wainright, L. Vlietstra, Hannah R. Uher-Koch, J. Paruk

{"title":"Trophic Position of Wintering Common Loons (Gavia immer ) in Barataria Bay, Louisiana Following the Deepwater Horizon Oil Spill","authors":"S. Wainright, L. Vlietstra, Hannah R. Uher-Koch, J. Paruk","doi":"10.1675/063.045.0104","DOIUrl":"https://doi.org/10.1675/063.045.0104","url":null,"abstract":"Abstract. Common Loons (Gavia immer) wintering in watercourses of Barataria Bay, in coastal Louisiana were sampled in 2011–2014 following the Deepwater Horizon oil spill of 2010. Blood samples were analyzed for stable isotope ratios of carbon, nitrogen and sulfur as proxies for habitat use and diet in order to expand our understanding of the trophic position of wintering loons. The δ 13C and δ 34S values indicated that these Common Loons feed in coastal estuarine habitats. Trophic position was estimated indirectly by comparing loon stable isotope ratios with those of Brown Pelicans (Pelecanus occidentalis), a known piscivore, sampled concurrently in 2014. The isotopic signatures of the two species were not significantly different; this is consistent with the hypothesis that both species foraged primarily in coastal estuarine habitats and mainly as piscivores. No significant differences were found between subadult and adult Common Loons with respect to isotopic signatures, suggesting similar habitat usage and diet. Adults weighed more and were in better body condition than subadults. Stable isotope composition and body condition were not significantly related. Using a parallel data set of polycyclic aromatic hydrocarbons (PAH, an indicator or oil contamination) in the blood of the same loons, there was no significant relationship between PAH contamination and stable isotopic composition. Therefore, PAH-contamination could not be linked to a distinctive foraging habitat or diet.","PeriodicalId":54408,"journal":{"name":"Waterbirds","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82287458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Dabbling Duck Eggs Hatch after Nest Abandonment in the Wild 野外弃巢后的浅水鸭蛋孵化

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0111

Carley Schacter, Brady L. Fettig, S. Peterson, C. A. Hartman, M. Herzog, M. Casazza, J. Ackerman

{"title":"Dabbling Duck Eggs Hatch after Nest Abandonment in the Wild","authors":"Carley Schacter, Brady L. Fettig, S. Peterson, C. A. Hartman, M. Herzog, M. Casazza, J. Ackerman","doi":"10.1675/063.045.0111","DOIUrl":"https://doi.org/10.1675/063.045.0111","url":null,"abstract":"Abstract. In most birds, parental incubation of eggs is necessary for embryo development and survival. Using a combination of weekly nest visits, temperature dataloggers, infrared video cameras, and GPS tracking of hens, we documented several instances of duck eggs hatching after being abandoned by the incubating female. Of 2826 Mallard (Anas platyrhynchos) and Gadwall (Mareca strepera) nests monitored 2015–2019 in Suisun Marsh, California, 48 (1.7%) were abandoned during late incubation (≥ 20 days). Of these, we identified six (12.5%) where at least one egg hatched 2–9 days after abandonment. In all six cases, eggshell membranes were found in the nest (indicating hatch), and ducklings were observed at three nests. Abandoned nests were unattended for an average of 5.9 days before eggs hatched; during this time, mean nest temperatures (23.6°C–29.0°C) were substantially lower than before nest abandonment (31.7°C–36.4°C). We estimated that abandonment resulted in a 9% longer time period between clutch completion and hatch (0–4 days longer) and a lower rate of egg hatching success (36%). Our results provide evidence that some older embryos (≥ 20 days) in mild climates can survive without parental incubation for several days and continue to develop (at a reduced rate) to the point of successfully hatching.","PeriodicalId":54408,"journal":{"name":"Waterbirds","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91307234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Harvest Mortality of Mallards (Anas platyrhynchos) Banded at Lake St. Clair, CAN and Western Lake Erie, USA 在加拿大圣克莱尔湖和美国伊利湖西部被绑带的绿头鸭(Anas platyrhynchos)的死亡率

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0107

Matthew D. Palumbo, Brendan T. Shirkey

{"title":"Harvest Mortality of Mallards (Anas platyrhynchos) Banded at Lake St. Clair, CAN and Western Lake Erie, USA","authors":"Matthew D. Palumbo, Brendan T. Shirkey","doi":"10.1675/063.045.0107","DOIUrl":"https://doi.org/10.1675/063.045.0107","url":null,"abstract":"Abstract. Coastal marshes of Lake St. Clair, in southwest Ontario, CAN and Lake Erie, in northwest Ohio, USA are important migratory staging locations for waterfowl despite experiencing substantial wetland losses. Waterfowl habitat management at these locations focuses on providing food resources for Mallards (Anas platyrhynchos), a highly sought game species. We examined direct recovery rates of Mallards banded prior to the 2014, 2015, and 2016 hunting seasons as a measure of harvest mortality. We compared harvest mortality between the two locations, among years, among four sex and age cohorts, and as a function of body condition. We found that banding location for juvenile Mallards was an important variable predicting harvest mortality. The probability of being a direct recovery was 126% greater for juvenile females and 70% greater for juvenile males banded at Lake St. Clair compared to those banded in northwest Ohio. Average body condition was slightly less for juvenile male Mallards banded in northwest Ohio during 2016 compared to those banded in 2015 or those banded in LSC in 2014 or 2015. We did not detect any other significant differences related to body condition and location or location-year with respect to direct recovery rates. We hypothesize that harvest mortality of juvenile Mallards could be related to differences in harvest regulations, bird abundances, or hunter density between the two study sites, all of which may have different implications for those interested in managing Mallard populations in the lower Great Lakes region.","PeriodicalId":54408,"journal":{"name":"Waterbirds","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75895284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Trials and Lessons Learnt in Three Seasons of Attempting to Study the Movements of Saddle-Billed Storks in Zambia 赞比亚鞍嘴鹳三季运动研究的试验与教训

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0112

Jonah Gula, Amukena Mungole, A. Botha, Camden Martin, Euan Genevier, Rynhardt Le Roux

引用次数: 1

The Diet of the Imperial Shag Phalacrocorax atriceps at Vintter Lake, Patagonia, Argentina 阿根廷巴塔哥尼亚文特湖的帝王长尾长尾鱼的饮食

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0115

R. Casaux, M. Bertolin, Melina Deluchi, María Inés García Betoño, Anahí M. Silvestro, Mariana A. Juáres

引用次数: 0

Trends in Rail Migration Arrival and Departure Times Using Long-Term Citizen Science Data from Mississippi, USA 基于美国密西西比州长期公民科学数据的铁路移民到达和离开时间趋势

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-11-11 DOI: 10.1675/063.045.0113

J. C. Kitaif, Haley Holiman, Auriel M. V. Fournier, Raymond B. Iglay, M. Woodrey

{"title":"Trends in Rail Migration Arrival and Departure Times Using Long-Term Citizen Science Data from Mississippi, USA","authors":"J. C. Kitaif, Haley Holiman, Auriel M. V. Fournier, Raymond B. Iglay, M. Woodrey","doi":"10.1675/063.045.0113","DOIUrl":"https://doi.org/10.1675/063.045.0113","url":null,"abstract":"Abstract. Little is known of rail migration ecology, consequently limiting efforts to effectively conserve rail populations. Therefore, we investigated changes in the migratory arrival/departure dates for Virginia Rails (Rallus limicola), King Rails (Rallus elegans) and Sora (Porzana carolina) north of Ocean Springs, Mississippi. Using citizen science data collected over the last 25 years, we inspected summarized data for patterns of primary arrival and departure windows indicated by first or last observations of each species at the lagoons, respectively, alongside 10th/90th quantiles that controlled for outliers (i.e., early arrivals, late departures). Regression models found no differences in spring migration departures for any species. In fall migration we found a difference only in Virginia Rail arrivals, which became later over time. King Rail arrived in autumn first in mid-September (September 22nd) followed by Sora (October 5th) and Virginia Rails (October 21st). In spring migration, Virginia Rails departed first (March 19th), then King Rails (March 24th), and Sora (April 20th). Trends for King Rails may have been skewed by some individuals having non-migratory behavior. Despite limitations, citizen science efforts were useful for an initial investigation of rail migration ecology, and future applications could be used to identify and assess factors affecting migration timing (e.g., climate change, habitat availability, weather shifts).","PeriodicalId":54408,"journal":{"name":"Waterbirds","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75585060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Factors Limiting Reproductive Success of American Oystercatchers (Haematopus palliatus) in Florida's Southern Big Bend Region 限制佛罗里达南部大本德地区美洲捕牡蛎者繁殖成功的因素

IF 0.3 4区生物学

Waterbirds Pub Date : 2022-07-29 DOI: 10.1675/063.044.0406

N. Vitale, Janell M. Brush, A. Powell

{"title":"Factors Limiting Reproductive Success of American Oystercatchers (Haematopus palliatus) in Florida's Southern Big Bend Region","authors":"N. Vitale, Janell M. Brush, A. Powell","doi":"10.1675/063.044.0406","DOIUrl":"https://doi.org/10.1675/063.044.0406","url":null,"abstract":"Abstract. Florida's Big Bend region hosts the second largest concentration of breeding American Oystercatchers in the state, but reproductive success is low. Nest site characteristics and predation were examined to determine their influence on survival of nests and broods at two areas in the southern Big Bend (Cedar Key and Barge Canal). The probability of a nest surviving in Cedar Key was low (x̄ = 0.25, CI = 0.13–0.41) and limited by nest overwash (46% of known nest attempts); survival of nests at Barge Canal was much higher (x̄ = 0.45, CI = 0.31–0.58). However, 40% of chicks that survived to fledge (35 days) at Barge Canal died before reaching independence (60 days). Raccoon presence and hatch date were negatively correlated with brood survival at Barge Canal. Finally, chicks at Barge Canal weighed less and were smaller compared to chicks at an Atlantic Coast site, which may be related to low abundance of live oysters within 100 m of their nest sites. Efforts to enhance oystercatcher reproductive success may require different approaches for each site: habitat restoration to increase elevation of nest sites in Cedar Key and reduction of predators at Barge Canal.","PeriodicalId":54408,"journal":{"name":"Waterbirds","volume":null,"pages":null},"PeriodicalIF":0.3,"publicationDate":"2022-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89532130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1