Gayana最新文献 - Book学术

Misinterpretation of historical data for determining past huemul (Hippocamelus bisulcus) distribution and migratory patterns may threaten their conservation: A critique of Flueck et al. (2022) 在确定过去的海马鹿(Hippocamelus bisulcus)分布和迁徙模式时，对历史数据的误解可能会威胁到它们的保护:对Flueck等人的批评(2022)

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100025

Paulo Corti, Norma I. Díaz

引用次数: 1

Habitat preference and abundance of Coscoroba coscoroba and Cygnus melancoryphus in Petrel wetland (O'Higgins region, Chile): Implications in the conservation 智利海燕湿地Coscoroba Coscoroba和Cygnus melancoryphus的生境偏好及其保护意义

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100086

Marcelo Miranda-Cavallieri, Carolina Allendes-Muñoz, Camilo Matus-Olivares, Fulgencio Lisón

{"title":"Habitat preference and abundance of Coscoroba coscoroba and Cygnus melancoryphus in Petrel wetland (O'Higgins region, Chile): Implications in the conservation","authors":"Marcelo Miranda-Cavallieri, Carolina Allendes-Muñoz, Camilo Matus-Olivares, Fulgencio Lisón","doi":"10.4067/s0717-65382023000100086","DOIUrl":"https://doi.org/10.4067/s0717-65382023000100086","url":null,"abstract":"Wetlands are environments with a high diversity and global importance due to the ecosystem services they provide. In Chile, most wetlands are threatened, including their avifauna, especially the two southern hemisphere swans (Coscoroba coscoroba and Cygnus melancoryphus). Here, we made three years of monitoring of abundance of both species in the Petrel wetland. Our results show that the Petrel wetland is an important site for the conservation of South American swan populations, with an abundance average of 38.5 Â± 18.8 individuals of C. coscoroba (peak of 60 ind.) and 11.6 Â± 12.4 individuals of C. melancoryphus (peak of 40 ind.). These swan species avoid sites close to urban areas and show a preference for habitats distant from anthropogenic activities. The detection probability of swans was influenced by minimum and maximum temperature and wind speed. The vegetation aquatic and riverine are key variables to the abundance of these swans. Our large monitoring highlights the importance of Petrel wetland for the conservation of southern swans and provide value information about their abundance patterns and the population dynamics of C. coscoroba and C. melancoryphus. These data support the need to develop conservation and management plans for this wetland.","PeriodicalId":49074,"journal":{"name":"Gayana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135194601","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: 0

Ampliación de distribución geográfica del lagarto En Peligro Pristidactylus volcanensis Lamborot & Díaz, 1987 (Squamata, Leiosauridae): primer registro en la subcuenca andina del Río Yeso 濒危蜥蜴火山蜥蜴地理分布的扩大diaz, 1987 (Squamata, Leiosauridae): Yeso河安第斯次盆地的首次记录

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100037

Jorge Mella-Romero, Jorge Mella

引用次数: 0

“Rescue”, relocation, and monitoring of translocated fauna in Chile 救援”，重新安置和监测智利迁移的动物

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100078

Fabian M. Jaksic

引用次数: 0

Observation of the growth of a bifurcated tail in the Chilean Marked Gecko, Garthia gaudichaudii (Squamata, Phyllodactylidae) 智利斑点壁虎分岔尾生长的观察(鳞目，毛趾壁虎科)

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100082

Claudio Reyes-Olivares, Fabián Campos-Cifuentes, Mario Penna

引用次数: 0

New records for the pleustonic snails Janthina and Recluzia (Gastropoda: Epitoniidae) for Chile 标题智利壳壳蜗牛Janthina和Recluzia的新记录(腹足纲:壳壳蜗牛科)

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100033

Marina Fuentes, Juan Antonio Aliaga, Luis Ballesteros, Nicolás Zambrano, Juan Francisco Araya

引用次数: 0

Distribution extension of Adistemia convexa (Dajoz, 1974) (Coleoptera, Latridiidae) in Chile 智利凸蚜蚜(Dajoz, 1974)分布扩展(鞘翅目，螟蛾科)

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100074

Francisco Tello, Fernanda Olivares, Cristobal Tello-Arriagada

引用次数: 0

Range expansion of the screaming cowbird (Molothrus rufoaxillaris) mediated by a new brood parasite-host interaction in central Chile 智利中部一种新的寄主-寄主相互作用介导的尖叫牛鹂活动范围扩大

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100018

Vicente Pantoja, Fernando Medrano, Ivo Tejeda

{"title":"Range expansion of the screaming cowbird (Molothrus rufoaxillaris) mediated by a new brood parasite-host interaction in central Chile","authors":"Vicente Pantoja, Fernando Medrano, Ivo Tejeda","doi":"10.4067/s0717-65382023000100018","DOIUrl":"https://doi.org/10.4067/s0717-65382023000100018","url":null,"abstract":"The Screaming Cowbird (Molothrus rufoaxillaris) is a brood-parasite specialized in parasitizing the Grayish Baywing (Agelaioides badius). Recently, it started to parasite a new host, the Austral Blackbird (Curaeus curaeus), which has driven the expansion of its range to central Chile. However, its actual and potential distribution and the natural history of this interaction are scarcely known. In this note, we describe the distribution, habitat use and phenology of the species in Chile. Additionally, we present data on feeding events of Screaming Cowbird fledglings by Austral Blackbirds. For doing so, we analyzed data from a citizen-science project using Maxent and Random Forest models. We found that the Screaming Cowbird is distributed mainly in urban and agricultural habitats, avoiding native shrublands and forests. The potential distribution is driven by the temperature and the Austral Blackbird distribution. This note confirms the relationship between both species of icterids and gives new insights into how new host-parasite interactions can drive the range expansion of brood parasitic birds.","PeriodicalId":49074,"journal":{"name":"Gayana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135194600","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: 0

Seasonality in the feeding ecology of Black-necked swans (Cygnus melancoryphus) in a temperate wetland of southern Chile 智利南部温带湿地黑颈天鹅(Cygnus melancoryphus)摄食生态的季节性

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100010

Cecilia Norambuena, Marjoury Jélvez, Mayra Mena, Marcelo Ratto

{"title":"Seasonality in the feeding ecology of Black-necked swans (Cygnus melancoryphus) in a temperate wetland of southern Chile","authors":"Cecilia Norambuena, Marjoury Jélvez, Mayra Mena, Marcelo Ratto","doi":"10.4067/s0717-65382023000100010","DOIUrl":"https://doi.org/10.4067/s0717-65382023000100010","url":null,"abstract":"The concomitant effects of environmental physical constraints associated with the availability and quality of food will finally affect the energy budget of wild animals. This study aimed to determine the effect of seasonality on water level, behavioural and nutritional status of Black-necked swans inhabit the Budi Lake, Chile. In winter and spring, the water level was recorded using a graduated rod and a time budget of 60 swans/hours was recorded from 8 am to 6 pm using binoculars and the focal method. In order to determine nutritional status a subset of 20 birds were captured and weight, length, wingspan, and tarsal length were measured. Also, blood sample was collected to determine cholesterol, triglycerides, and total proteins plasma concentrations. Budi Lakeâs water level increase in winter (111 Â± 3 cm vs 54 Â± 0.6 cm, P = 0.04). In addition, winter swan population increased significantly the time allocated to foraging at morning, and the proportion of effortful foraging behaviour (37/222 vs 14/185, P = 0.01), assigning less time to resting activities (7 Â± 4 % vs 11 Â± 2 %, P = 0.05) compared with spring population. Nutritional status was not compromised in swan populations in both seasons. In conclusion, behavioral adjustments allow Black-necked swan populations to maintain an adequate nutritional status despite the increase in water level during winter season.","PeriodicalId":49074,"journal":{"name":"Gayana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135194602","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: 0

A global review of the American mink (Neovison vison) removal techniques - Patagonia as a case study for their potential application 美国水貂(Neovison)去除技术的全球综述-以巴塔哥尼亚为例研究其潜在的应用

4区生物学

Gayana Pub Date : 2023-06-01 DOI: 10.4067/s0717-65382023000100043

Ronar López, B. Kay Clapperton, Gonzalo Medina-Vogel

{"title":"A global review of the American mink (Neovison vison) removal techniques - Patagonia as a case study for their potential application","authors":"Ronar López, B. Kay Clapperton, Gonzalo Medina-Vogel","doi":"10.4067/s0717-65382023000100043","DOIUrl":"https://doi.org/10.4067/s0717-65382023000100043","url":null,"abstract":"American mink (Neovison vison) represents a threat to both biodiversity and economy in various regions of the world, including Patagonia. This invasive species has been successfully removed from many areas of Europe. In Chile and Argentina there have been only patchily distributed attempts of local control to date and large-scale removal has been considered unfeasible. We analyzed available scientific information, to determine best-fit strategies and improved methodologies that increase efficiency (capture per unit of effort) in American mink control. We reviewed published papers about programs that aimed at local control, functional or total eradication of minks in the Web of Science (WoS) database. Based on accessible information, the influence of some field variables on capture efficiency was determined through a General Lineal Model. From 1525 results in the WoS search, 51 papers refer to mink control action carried out in 28 areas of Europe and South America since 1992. Trapping has been the most used and efficient capture method. Short trapping periods that cover larger lineal distances per control program, and the use of attractants, specifically pheromones, have led to improved control efficiency. Chilean, Scottish and English experiences showed among the highest trapping efficiency values. We identify areas of research needed on mink ecology and behavior and trapping techniques that could improve trapping efficiency. A control program that incorporates the outcomes of this data assessment has the potential to improve feral mink removal. But further research is required to ensure that these efficiency measures result in cost-effective control in Patagonia.","PeriodicalId":49074,"journal":{"name":"Gayana","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135194393","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: 0