Manglar Pub Date : 2023-12-17 DOI: 10.57188/manglar.2023.040

Á. Benítez, Erika Yangua-Solano, Leslye Ruiz

{"title":"Schinus molle como refugio para la diversidad de criptógamas epífitas indicadores de contaminación del aire en Quito, Ecuador","authors":"Á. Benítez, Erika Yangua-Solano, Leslye Ruiz","doi":"10.57188/manglar.2023.040","DOIUrl":"https://doi.org/10.57188/manglar.2023.040","url":null,"abstract":"Air pollution in urban areas due to automotive and industrial emissions is a global problem, including the city of Quito- Ecuador. In this context, previous studies have pointed out the effective use of bioindicators of air quality using epiphytic cryptogams (bryophytes and lichens), which are pollutant-sensitive organisms because they absorb water and nutrients from the environment. In this study, we determined for the first time the changes in the richness and composition epiphytic cryptogams in the host tree Schinus molle comparing areas of high, medium, and low vehicular traffic. For this purpose, we registered the frequency and coverage of lichens and bryophytes with a grid of 10 x 50 cm, divided into twenty squares of 5 x 5 cm on Schinus molle trees. We recorded 30 species (23 lichens and 7 bryophytes). Richness, cover and diversity did not indicate changes in relation to vehicular traffic, however, the composition of the communities indicated slight changes in relation to vehicular traffic. Species composition indicated changes in relation to vehicular traffic, where species of the genera Leptogium and Teloschistes were dominant in low traffic areas, conversely species of genera Candelaria, Physcia and Frullania was observed in areas with higher traffic that are tolerant to pollution. Schinus molle is a very important species as a refuge for diversity of epiphytic cryptogams in urban areas.","PeriodicalId":34452,"journal":{"name":"Manglar","volume":"16 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138966252","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}

引用次数: 0

Diversidad florística en los pastizales de las quebradas de Arhuaycancha y Rurec, Perú 秘鲁Arhuaycancha和Rurec草原的植物区系多样性

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.031

MELISSA KARINA FLORES COCHACHIN, KENETH REATEGUI DEL AGUILA, Edwin Julio Palomino Cadenas, NAZARIO AGUIRRE BAIQUE

引用次数: 0

Valoración Económica de la belleza escénica del volcán Chimborazo, Ecuador 厄瓜多尔钦博拉索火山美景的经济评估

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.029

Edison Fernando Campos Collaguazo, Luis Alberto Jimenez

{"title":"Valoración Económica de la belleza escénica del volcán Chimborazo, Ecuador","authors":"Edison Fernando Campos Collaguazo, Luis Alberto Jimenez","doi":"10.57188/manglar.2023.029","DOIUrl":"https://doi.org/10.57188/manglar.2023.029","url":null,"abstract":"The Chimborazo volcano is the closest point to the sun and is recognized nationally and internationally. 90,000 people visit this tourist attraction annually, which is being threatened by the advance of theagricultural frontier, causing the loss of ecosystem services found in this ecosystem. This research estimated the willingness to pay (WTP) of the population of the city of Riobamba, for the conservation of the scenic beauty of the Chimborazo volcano. 406 surveys were applied, using the double-limit dichotomous contingent valuation method, using a maximum likelihood model in Stata software. Four models were developed: single limit, single limit with other explanatory variables, double limit and double limit with other explanatory variables, the latter being statistically more significant. As a result, it was determined that the DAP is USD 0.81 per month to preserve the scenic beauty of the Chimborazo volcano, a value that increases if the variable consumption of other products is included to reduce climate change by USD 0.19, the age, the monthly water payment and the level of education decrease the WTP by USD 0.02, USD 0.01, and 0.05 respectively.","PeriodicalId":34452,"journal":{"name":"Manglar","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135146723","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}

引用次数: 0

Alimento balanceado comercial de langostino permite un buen crecimiento, supervivencia e inmunidad de robalo (Centropomus spp.) 均衡的商业对虾饲料可以促进鲈鱼(Centropomus spp.)的生长、生存和免疫力。

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.032

Auberto Hidalgo Mogollon, John E. Sandoval Ramayoni, Tessy Peralta Ortiz, Oscar Augusto Mendoza Neyra, Alberto Ordinola Zapata

{"title":"Alimento balanceado comercial de langostino permite un buen crecimiento, supervivencia e inmunidad de robalo (Centropomus spp.)","authors":"Auberto Hidalgo Mogollon, John E. Sandoval Ramayoni, Tessy Peralta Ortiz, Oscar Augusto Mendoza Neyra, Alberto Ordinola Zapata","doi":"10.57188/manglar.2023.032","DOIUrl":"https://doi.org/10.57188/manglar.2023.032","url":null,"abstract":"The aim of this research was to evaluate the effect of three diets based on commercial balanced food for shrimp (AB) with 28% protein, pipona (Gambusia affinis) and jumbo squid (Dosidicus gigas) on the growth, survival and blood parameters of snook (Centropomusspp.). The experiment lasted 8 weeks, it had three treatments with two repetitions (3 m3tanks) in which 10.9 g snookswere stocked, at a density of 3.3 specimens/m2, the food was applied once a day. At the end of the experiment, the specimens that received the AB diet had a total weight and length that were significantly higher than those of the other diets. Survival and percentage of lymphocytes in blood was higher with AB and jumbo squid. But, the erythrocyte count and hematocrit were lower in AB-fed fish, possibly due to the iron deficiency of this diet. It was concluded that the commercial balanced food for shrimp with 28% protein allowed good growth, survival and percentage of lymphocytes, and that if supplemented with iron it can be a good option for feeding snooks in culture.","PeriodicalId":34452,"journal":{"name":"Manglar","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142458","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}

引用次数: 0

Inhibición del crecimiento in vitro de Bacillus spp sobre hongos asociados al proceso de fermentación en cacao 在可可发酵过程中抑制芽孢杆菌对真菌的体外生长

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.026

Diana Carolina Cedeño Alcívar, Wilson Paúl Cedeño Guzmán, Lenin Antonio Vera Macías, Sergio Miguel Vélez Zambrano

引用次数: 0

Daño y etología de Cryptarcha sp. en la cactácea Opuntia ficus-indica (L.) Mill. Ayacucho, Perú 仙人掌(仙人掌)Cryptarcha sp.的危害和行为学·穆勒。秘鲁阿亚库乔

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.027

JULIO DANILO VILCA VIVAS, Joel Linder Vilca Pizarro, WILFREDO GONZALES GUZMÁN

{"title":"Daño y etología de Cryptarcha sp. en la cactácea Opuntia ficus-indica (L.) Mill. Ayacucho, Perú","authors":"JULIO DANILO VILCA VIVAS, Joel Linder Vilca Pizarro, WILFREDO GONZALES GUZMÁN","doi":"10.57188/manglar.2023.027","DOIUrl":"https://doi.org/10.57188/manglar.2023.027","url":null,"abstract":"In prickly pear (Opuntiaficus-indica(L.) Mill.) of the semiarid forest of Ayacucho, Chryptarchasp. infests and damages the tender organs of the cactus. The objective of the study was to determine the damage of the insect during a year and its behavior. Fortnightly during the year, in 60 prickly pear plants, the number of young leaves, flower buds, flowers and green fruits, healthy and damaged by the insect and its behavior were monitored. Using the PAST 4.12 software, the annual cycle of damage occurrence and the annual cycle of the vegetative period of the prickly pear were diagrammed, to relate them to the climatic seasons; likewise, the principal component analysis (PCA) to establish the most affected tender organs and the period of infestation to the cactus. It turned out that during theyear the flower bud and the green fruit were significantly damaged. It infests the tuna mainly from November to March of the following year, which corresponds to the hot and humid season; in which it managed to damage 35.9% of flowers, 14.7% of tender leaves, 9.7% of green fruits and 0.7% of flowers. It has phytophagous and saprophagous behavior, being attracted by the juice of ripe fruit damaged by other agents, by the ferments of the stems of the prickly pear and other cacti in the process of putrefaction, and by the fresh feces of the pig.","PeriodicalId":34452,"journal":{"name":"Manglar","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135146794","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}

引用次数: 0

Conocimiento público sobre medidas de adaptación y mitigación frente al cambio climático en Lima, Perú 秘鲁利马关于适应和缓解气候变化措施的公共知识

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.033

Del Piero Raphael Arana Ruedas, Laura Soto Guerra, YOMIRA MILAGROS CRUZ MENDOZA, Ewonny Ttito Moya

{"title":"Conocimiento público sobre medidas de adaptación y mitigación frente al cambio climático en Lima, Perú","authors":"Del Piero Raphael Arana Ruedas, Laura Soto Guerra, YOMIRA MILAGROS CRUZ MENDOZA, Ewonny Ttito Moya","doi":"10.57188/manglar.2023.033","DOIUrl":"https://doi.org/10.57188/manglar.2023.033","url":null,"abstract":"Climate change is a current and globally significant issue. Many countries are working together with international agreements, developing strategies to mitigate the impacts it can generate. In Peru, public knowledge regarding climate change adaptation and mitigation measures has been a topic of great national interest but is also somewhat unknown or outdated. The aim of this study was to assess people's level of understanding regarding this subject. The methodology employed was quantitative, using surveys administered to citizens to analyze their perceptions of climate change measures. The results revealed that almost 80% of them have received information about climate change, but 95.9% think that climate change is real, so above 15% of the participants evenwithout getting information about this global issue have a notion about it,36.6% of the participants did not know about the Peruvian participation in the Paris Agreements as well as the Peruvian law of climate change where around 30% of surveyed are notaware of the regulation gave by Peruvian law, above of 60% of the participants did not know about Peruvian initiatives and actions linked to those measures. Lastly, above 60% of the participants think they are not involved in the adaptation and mitigationprocess. Also, above 90% of the participants have perceived a temperature rise. Finally, it is advisable to analyze the awareness programs implemented by the government to convey information about climate change adaptation and mitigation measures and keep studying regarding local-level climate change awareness.","PeriodicalId":34452,"journal":{"name":"Manglar","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135142457","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}

引用次数: 0

Módulo de rigidez de especies de madera de importancia comercial para México: Pinus pseudostrobus, Tabebuia rosea y Quercus scytophylla 对墨西哥具有重要商业价值的木材品种:假strobus, Tabebuia rosea和Quercus scytophylla的刚度模量

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.024

Javier Ramón Sotomayor Castellanos, Juan Zárate Medina, Isarael Macedo Alquicira

{"title":"Módulo de rigidez de especies de madera de importancia comercial para México: Pinus pseudostrobus, Tabebuia rosea y Quercus scytophylla","authors":"Javier Ramón Sotomayor Castellanos, Juan Zárate Medina, Isarael Macedo Alquicira","doi":"10.57188/manglar.2023.024","DOIUrl":"https://doi.org/10.57188/manglar.2023.024","url":null,"abstract":"Wood is a biological material with applications in engineering and architecture. Its modulus of rigidity is useful for the calculation of beams that work in bending and torsion. The objective of the research was to determine the rigidity moduli and material indices of Pinus pseudostrobus, Tabebuia rosea and Quercus scytophylla. Dynamic torsion tests were performed on 35 small specimens of each species. Linear correlations and their coefficients for determining the modulus of rigidityas a function of density and frequency were calculated. The main results are: The magnitudes of the wood densities of P. pseudostrobus, T. roseaand Q. scytophyllaare located within the interval:587 kg m-3, 735 kg m-3. The coefficient of variation of the frequencies for Q. scytophyllais 50% lower compared to the coefficients of P. pseudostrobusand T. rosea. The coefficient of variation for P. pseudostrobusis 23% greater than that of T. roseaand 146% greater than that of Q. scytophylla. It is concluded that the values reported in this research may be useful if these wood species are used for structural purposes.","PeriodicalId":34452,"journal":{"name":"Manglar","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135143169","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}

引用次数: 0

Valoración económica de los servicios ecosistémicos del recurso hídrico de la cuenca del río Cachi, Ayacucho, Perú 秘鲁阿亚库乔卡奇河流域水资源生态系统服务的经济评估

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.028

Manuel Ccasani Sierra, Carlos Enrique Orihuela Romero, JORGE RICARDO GONZALES CASTILLO, Pelayo Hilario Valenzuela

{"title":"Valoración económica de los servicios ecosistémicos del recurso hídrico de la cuenca del río Cachi, Ayacucho, Perú","authors":"Manuel Ccasani Sierra, Carlos Enrique Orihuela Romero, JORGE RICARDO GONZALES CASTILLO, Pelayo Hilario Valenzuela","doi":"10.57188/manglar.2023.028","DOIUrl":"https://doi.org/10.57188/manglar.2023.028","url":null,"abstract":"Knowing economic value of ecosystem services makes it possible to identify the importance of ecosystems and their services, with which better decisions that have an impact on social well-being are expected. The objective of the study was to estimate the economic value of water ecosystem services (ES), from the Cachi basin.The novelty of the study lies in the application of a complete study of the Contingent Valuation Method (CVM), the Willingness to Pay (WTP) and the Willingness to Accept (WTA) were estimated. According to surveys carried out, 90.6% of the producers in the Cachi basin are WTP, 9.4% are not WTP for economic reasons. On the other hand, 92% of the inhabitants of the high Andean areas are WTA, only 8% do not accept an economic incentive, due to disagreements with the Regional Government of Ayacucho. The econometric results of the logit model showed that the producers are WTP, at most S/ 74.87/ha/campaign (19.50 USD), for the conservation of the hydrological ES for agricultural porpuses. While the inhabitants of the highland areas of the Cachi basin are WTA, the minimum amount of S/162.05 ha/bofedal/monthly (42.21 USD), in exchange for conserving the wetlands and pastures of the Cachi basin headwaters. It is concluded, the producers are WTP for obtaining continuity and quality of the supply of water for agricultural use, and they are WTA for the conservation and recovery of natural water sources. Putting these results into practice would contribute to the sustainability of the water supply in the high Andean areas, guaranteeing the provision of water resources to current and future generations in times of drought.","PeriodicalId":34452,"journal":{"name":"Manglar","volume":"485 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135146608","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}

引用次数: 0

Inclusión de niveles de expellerde algodón en la alimentación de ovinos confinados: comportamiento productivo, características de la canal y calidad de la carne 在圈养绵羊饲料中添加棉花膨化剂水平:生产行为、胴体特性和肉质

Manglar Pub Date : 2023-10-09 DOI: 10.57188/manglar.2023.022

Jorge Daniel Caballero Mascheroni, Javier Feliciano González Cabañas, Tania Fariña Díaz, Guido Arnaldo Portillo, Luis Alberto Alonzo Griffith, Nicolas Daniel Prieto Quevedo

{"title":"Inclusión de niveles de expellerde algodón en la alimentación de ovinos confinados: comportamiento productivo, características de la canal y calidad de la carne","authors":"Jorge Daniel Caballero Mascheroni, Javier Feliciano González Cabañas, Tania Fariña Díaz, Guido Arnaldo Portillo, Luis Alberto Alonzo Griffith, Nicolas Daniel Prieto Quevedo","doi":"10.57188/manglar.2023.022","DOIUrl":"https://doi.org/10.57188/manglar.2023.022","url":null,"abstract":"To substitute soybean meal with different levels of cottonseed meal, twelve non-castrated male Santa Inés × Dorper sheep with an average initial weight of 27.33 ± 0.58 kg and age of 225 ± 15 days were used. The treatments consisted of three levels of cottonseed meal (0%, 15%, and 30%), with four replicates, distributed in a completely randomized experimental design. The diets consisted of totally mixed rations, with a forage-concentrate ratio of 30:70 (dry matter basis). Cottonseed meal levels did not affect (p >0.05)dry matter intake for up to 28 days, then values decreased linearly. Feed conversion and daily weight gain were improved up to 28 days and then decreased linearly (p ≤0.05)In the same way, cooling and cooking weights losses and the shear force were affected and with a quadratic behavior (p ≤0.05) by the levels of cottonseed meal, standing out the level of 15%, while the live weight, hot and cold carcass weight and yield, loin eye area, the thickness of subcutaneous fat were not affected by the treatments (p >0.05). Cottonseed meal can replace up to 20% of the soybean meal in sheep concentrate feed for a period not to exceed 28 days.","PeriodicalId":34452,"journal":{"name":"Manglar","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135146625","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}

引用次数: 0

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