scholarly journals LOS MAMIFEROS DE MICHOACÁN

2014 ◽  
Vol 4 (2) ◽  
pp. 1 ◽  
Author(s):  
Tiberio C. Monterrubio-Rico ◽  
Juan Felipe Charre Medellín ◽  
Cristina Z. Colín-Soto ◽  
Livia León Paniagua

 RESUMEN Los mamíferos silvestres han sido estudiados en Michoacán desde el siglo XVIII por renombrados zoólogos y naturalistas. Sin embargo, todavía en 1949 se reconocía solo 85 especies, y hasta el año 2005 se proporcionó estimaciones completas basadas en integración de registros disponibles tanto nacionales como de colecciones científicas internacionales, ya que la información disponible para el estado se encontraba dispersa. Como resultado de proyectos recientes con nuevos registros, el objetivo de este análisis es proporcionar una cifra actualizada sobre la riqueza taxonómica de los mamíferos silvestres terrestres en el estado de Michoacán. Existen registros de 161 especies en 9 Ordenes, 25 familias, y 94 géneros que representan el 32% de las especies de México. El Orden con mayor número de especies es Chiroptera con 74 especies que representan el 53% de las especies del Orden en México. A pesar de la ubicación central de Michoacán en el país, y ser un estado muestreado por numerosos investigadores, todavía existe carencia de información para regiones remotas, y en algunos grupos de mamíferos. Por ejemplo, el jaguar, que a pesar de ser el mayor felino del país, se carecía de confirmación para el estado, afortunadamente durante 2010 se localizó una población en el estado. Otro aspecto limitante para la interpretación adecuada de la estimación actual, es la antigüedad de muchos registros, ya que los estudios más completos realizados a escala regional, como en la costa Michoacana son de hace 30 años, y durante ese periodo se ha incrementado la deforestación de selvas tropicales, por lo que desconocemos la situación actual que presentan las poblaciones de mamíferos en el estado. En Michoacán encuentran su límite más norteño en el Pacífico tres especies de amplia distribución en el Neotrópico, Tamandua mexicana,  Potos flavus y Sphiggurus mexicanus, por lo que deben limitarse áreas que protejan sus poblaciones. Palabras clave: Distribución, Mochoacán, mamíferos, especies.ABSTRACT The wild mammals in Michoacan state have been studied since the XVIII century by reknown zoologists and naturalists. However, still in 1949 only 85 mammals species were recognized, and until 2005 a complete estimate based on the integration of national and international data bases records available from Scientific collections, since all available information was scattered. As a result of recent surveys with new records, the aim of this analysis was to provide an updated statistic of the terrestrial wild mammals taxonomic richness in the Michoacan state. Available records correspond to 161 species in 9 Orders, 25 families and 94 genera which represent 32% of the Mexican mammal species. The Order with the major number of species is Chiroptera that includes 74 species thet represent 53% of the Order in Mexico. Despite its central location in the country, and considering that the state has been surveyed by several prestigious academics, there is still a lack of information for remote regions, and for some mammal groups. For example, the jaguar, even though constitute the largest wild felid in the country, no information was available for the state, fortunately during 2010 a population was localized in the state. Another limiting factor for the adequate interpretation of the current estimate is that many records are outdated, since the most complete studies performed at a regional scale, like in the Michoaca coast, are 30 years old, and during that time-frame, tropical forest loss increased dramatically, for instance, the current situation that present the mammal populations in the state are unknown. In Michoacan three species with a broad neotropical distribution present its northernmost limit on the Pacific, Tamandua mexicana, Potos flavus, and Sphiggurus mexicanus and there is the need to establish protected areas oriented to protect their populations. Key words: Distribution, Michoacan, mammals, species.

2021 ◽  
pp. 113-129
Author(s):  
S. Albino-Miranda ◽  
E. V. Díaz–Ortiz ◽  
J. A. Guerrero ◽  
A. Guillén-Servent ◽  
J. M. Uriostegui-Velarde

Importance of the Cerro de la Tortuga State Park for mammal conservation in the state of Morelos, Mexico The Cerro de la Tortuga State Park (PECT) in Mexico was declared a Protected Natural Area (ANP) in 2012. The technical report for the decree included a potential list of mammals in the area according to a bibliographic review of general distribution maps; their presence was not corroborated with field data. The aim of this study was to update the list of mammals present in the PECT with field work data so as to clarify the value of the natural resources that this ANP protects, and thus contribute to the knowledge, management and conservation of mammals in the region. Field work took place from February to October 2017. We sampled six sites over two different periods, first, during the dry season and second, during the rainy season. Direct and indirect survey methods were used to sample mammal presence. Thirty species of wild mammals were recorded within the PECT, representing 28 % of the mammal species reported for the state of Morelos. The species recorded belong to 27 genera, 16 families and six orders. Chiroptera was the richest order, with 14 species (47 %), followed by Carnivora with 7 species (23 %), Rodentia with five (17 %), Didelphimorphia with two (7 %), and Lagomorpha and Xenartra with one species (3 %) each. Among all the species detected, only Leptonycteris yerbabuenae is classified as threatened in the NOM-059-2010 and as nearly threatened in the IUCN red list. As the PECT could operate as a key landscape corridor between other ANPs in the state for several mammalian species, its conservation and optimal management is important to adequately protect the regional natural resources. Dataset published through GBIF (Doi: 10.15470/6uxnzi)


2020 ◽  
Vol 94 ◽  
Author(s):  
M.H. Fugassa

Abstract The aim of the present study was to evaluate the state of knowledge about the helminthology of wild mammals in Argentine Patagonia and its link with the conservation of parasite species and biodiversity. To this end, the information included in the previously reported checklist of the helminths found in terrestrial wild mammals of Argentine Patagonia was completed and updated. The methodology used for the search was the same as that previously used, with slight modifications. Eighty-two species of mammals currently inhabit the region, and an additional six species are considered to have become extinct before the 20th century. The reports used to complete and update the information correspond to research done since 2015 to date. Considering the number of records analysed in the previously reported checklist and those of the current update, a total of 1918 helminthological reports for current Patagonian mammals and 2141 on mammal species that inhabited Patagonia before the 20th century were accounted for. It is important to point out that 41% of the 82 species of wild mammals currently inhabiting Patagonia have not been studied helminthologically; 38% of these without helminthological records are either threatened or do not have categorization, and 79% of mammals without helminthological studies have some degree of endemism. Therefore, in order to evaluate conservation priorities, the information about the parasitic richness in Patagonian wild mammals should be substantially increased, especially in those endangered or endemic.


2021 ◽  
Vol 3 (144) ◽  
pp. 64-71
Author(s):  
Yuriy V. Katayev ◽  
◽  
Valeriy S. Gerasimov ◽  
Vladimir I. Ignatov ◽  
Zoya N. Mishina ◽  
...  

The repair industry in almost all countries has entered a critical period, characterized by the need to combine and use various strategies and technologies for maintenance and repair of new equipment, as well as equipment produced many years ago. (Research purpose) The research purpose is in analyzing the state of the repair and maintenance base of the agro-industrial complex and justifying the possibilities of its modernization using intelligent technologies. (Materials and methods) Authors used methods of generalizing data from various services of agro- industrial formations of individual regions, materials of scientific and technical literature and research developments, studied data on the practical use of modern resource-saving technologies by engineering services of the agro-industrial complex of the regions when carrying out repairs and service and technological services. (Results and discussion) The lack of information about the state of the repair and maintenance base makes it difficult to determine all the criteria associated with the transition of manufacturers to a contract of the entire life cycle. Obtaining information about the state of the repair and maintenance base of the agro-industrial complex is a very important stage that contributes to the modernization of this base and attracting not only the governments, but also agricultural machinery manufacturers to modernization. (Conclusions) The technological level of the enterprises of the repair and maintenance base of agriculture has significantly decreased in recent years, and this has affected the decline in technical readiness indicators, which confirms the need to conduct research and implement in practice the main measures related to the modernization of the specified repair and maintenance base.


2015 ◽  
Vol 8 (2) ◽  
pp. 250-253 ◽  
Author(s):  
Brian P. Colleran ◽  
Katherine E. Goodall

The objective of this article is to extend the reported period in which flood-distributed knotweed propagules may be successfully managed using only manual labor. During a second round of early detection and rapid response (EDRR) management along the Green River in Guilford, VT, we collected and measured all Japanese knotweed propagules that had been distributed by flooding approximately 21 mo earlier, in August 2011, at a single site. Our data suggest that knotweed s.l. prioritizes the growth of new stems over new rhizomes at the start of a growing season. Because the limiting factor for successful removal of new knotweed s.l. plants by hand is the size of the rhizome system, our findings support extending the time frame for EDRR management of flood-distributed knotweed s.l. into the second spring after its initial dispersal. Additionally, in November 2013, surveys of our work sites found no new knotweed s.l. plants in locations accessible to work crews. In addition to validating our EDRR management techniques, this implies that knotweed s.l. fragment viability does not extend past the second spring following its dispersal.


2012 ◽  
Vol 21 (1) ◽  
pp. 16-21 ◽  
Author(s):  
Alberto Luiz Freire de Andrade Júnior ◽  
Patrícia Costa da Silva ◽  
Emerson Moreira de Aguiar ◽  
Francisco Glauco de Araújo Santos

Coccidiosis is a serious obstacle to sheep production, which is becoming a limiting factor, especially with regard to lamb production. However, there are few studies on this parasite in the State of Rio Grande do Norte. The aim of this study was to evaluate the action of decoquinate, added to mineral salt, for controlling Eimeria infection in lambs, and to identify which species are infecting sheep in the eastern region of the state. This study was carried out from August 2009 to January 2010, and used 76 animals. These were divided into two treatment groups: one with common mineral salt, and the other with mineral salt enriched with 6% micronized decoquinate. Fecal samples and body weight measurements were taken every 14 days for parasitological diagnosis, weight gain follow-up and quantitative analysis. The study showed that there was a significant difference in OPG only at the 7th collection, but no significant difference in weight gain. The Eimeria species found were E. ahsata. E. crandallis. E. granulosa. E. intrincata. E. ovina. E. faurei. E. ovinoidalis. E. pallida and E. parva. It was concluded that addition of decoquinate to mineral salt gave rise to lower oocyst elimination, thus favoring eimeriosis control in sheep.


2007 ◽  
Vol 33 (2) ◽  
pp. 147-152
Author(s):  
Richard Yahner ◽  
Richard Yahner ◽  
Russell Hutnik

The State Game Lands 33 Research and Demonstration Area, Centre County, Pennsylvania, U.S., has been studied since 1953 with the objective of comparing the effectiveness of commonly used mechanical and herbicidal maintenance treatments on vegetation and wildlife on a right-of-way (ROW). Small mammals are important wildlife species on a ROW by consuming tree seeds, thereby reducing invasion of undesirable tree species, and these mammals are important components of a healthy ecosystem. As a follow up to a 2-year study of small mammals conducted 15 years earlier (1989 to 1990) on the State Game Lands 33 ROW, we initiated a 2-year live-trapping study in 2004 on small mammal populations on this ROW. The objectives of our study were to determine relative abundance and species richness (number of species) in six major cover types and in the adjacent forest. One hundred twenty-one individuals of eight species were observed in 2004 and 2005 combined; the most common species was the white-footed mouse (Peromyscus leucopus). One of the most important cover types to small mammals on the ROW was forb-grass, whereas the forest cover type tended to be less diverse in terms of number of mammal species than in cover types on the ROW.


2021 ◽  
Author(s):  
Isaac Rêgo Purificação ◽  
Allêh Kauãn Santos Nogueira ◽  
Matheus Araújo de Souza ◽  
Camila de Almeida Costa Alencar ◽  
Sancha Mohana Brito Goes Rios

Background: Cerebrovascular disease (CVD) is the world 2nd death cause and the main cause of disability. Nevertheless, there is a lack of information regarding the mortality profile for this etiology in the last decade. Objective and Methods: Using prospectively collected data available in TabNet (DataSUS) platform, a descriptive and cross-sectional study was conducted. The primary objective is to access the demographic information most associated with DCV mortality in individuals older than 50 years-old, in São Paulo (SP), from 2010 to 2019. Results: The highest mortality in the state of SP was in 2019 (16,945 deaths), according to the growing trend; in the 2010-2019 period, the annual mean by city of deaths (± standard deviation [SD]) was 14,885 (± 1,341). During these years, the number of deaths was higher in the municipality of São Paulo (57,013; 31%). The annual mean deaths (± SD) in the capital and in the interior cities were, respectively: 4,684 (± 269) and 31 (± 58). The age groups from 70 to 79 years and over 80 years were the most affected. Caucasian race represents 71% of deaths. Individuals with 1 to 3 years of school were more affected (38%). The ratio of male deaths to female deaths was 1.02. Conclusion: In the last decade, there was an increasing mortality by CVD among the elderly population, and the city of São Paulo leads the number of cases.


2021 ◽  
Vol 79 ◽  
pp. 7-30
Author(s):  
Michał Cecelski ◽  
Robert Piec ◽  
Barbara Szykuła-Piec

After conducting a document review, the authors found no reports concerning the influence of biological factors, such as blood, mould, and dirt, on the durability of rescue ropes. This study aims to answer the question of whether and how selected biological factors affect static rope 10.5, which is frequently used by firefighters for rescues. In the first stage of the research, focus studies were conducted among fifteen members of the Specialist High-Rescue Group in Plock (Poland), which aimed to determine the state of knowledge about the impact of biological factors on the strength of rope. The results indicated that the group had knowledge as to the impact of physical and chemical factors on the rope; however, a lack of information on the impact of biological factors was identified. In the second stage, the force necessary to break static rope contaminated with selected biological agents was measured. To achieve this, a 100-m section of a new rope was divided into 63 sections, which were then exposed to impurities. The first endurance measurement was taken after 9 months and the second after 12 months. Findings: contamination with biological agents has an impact on static rope strength, and knowledge about this impact is negligible and not included in any rope-use instructions.


Author(s):  
Denisse McLean R.

The modeling of the state of biodiversity in Central America using GLOBIO3 methodology was carried out by the Regional Biodiversity Institute for the Central American Commission on Environment and Development. For each country, current and future states of biodiversity under three socio-economic scenarios were explored. The country results were integrated into one regional assessment. The aim of this chapter is to explain how GLOBIO3 was adapted to the national scale. The main issues and the approaches adopted to solve them are described. The results from the Central American experience are presented followed by a discussion on main model limitations and derived recommendations. Finally, the challenges countries face to integrate the results into their government agendas are analyzed. This chapter is expected to be helpful for potential users of GLOBIO3 who are interested in the application of the methodology on a national and sub regional scale.


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