Fossil legume fruits from tertiary strata of Puebla, Mexico

1994 ◽  
Vol 72 (7) ◽  
pp. 1027-1038 ◽  
Author(s):  
Susana Magallón-Puebla ◽  
Sergio R. S. Cevallos-Ferriz
Keyword(s):  
Plant Communities ◽  
Fossil Flora ◽  
Central Mexico ◽  
Arid Environments ◽  
The Past ◽  
South Central ◽  
Modern Species ◽  
Tropical America ◽  
Extinct Genus ◽  
The Town

A small assemblage of fossil legume fruits, leaf fragments, and leaflets has been recovered from the Tertiary (Oligocene) "Los Ahuehuetes" flora near the town of Tepexi de Rodríguez, Puebla, in south-central Mexico. Five legume fruits are described and compared with fruits of extant genera. Four fruit types were identified as belonging to the modern genera Prosopis (Mimoseae; Mimosoideae), Mimosa (Mimoseae; Mimosoideae), Lysiloma (Ingeae; Mimosoideae), and Sophora (Sophoreae; Papilionoideae). Another fruit exhibits a combination of characters unknown among extant legumes, and although superficially similar to some species of Papilionoideae, it represents an extinct genus. The four identified genera are diverse in the extant vegetation of Mexico; in fact, Mexico represents an important area of distribution for them. The presence of Prosopis, Mimosa, Lysiloma, and Sophora in the fossil flora of Puebla documents the occurrence of these genera in this part of their present area of distribution by the Oligocene. The climatic affinities of modern species of Mimosa, Lysiloma, and Sophora are so varied as to preclude any useful paleoclimatic inference. Prosopis is regularly associated with arid environments; however, the genus has been reported from fossil localities where humid conditions prevailed. This observation, together with the assemblage of plants that co-occur in the Los Ahuehuetes flora, suggests that plant communities of the past may have been composed, at least partly, of elements that today are associated with different habitats and environmental conditions. The fossil legume fruits from Los Ahuehuetes flora add to the previously known diversity of Leguminosae by the Tertiary, confirm tropical America as one of the important areas of radiation and diversification for Leguminosae, and contribute to the knowledge of Tertiary floras of southern North America. Key words: Leguminosae, Tertiary, Mexico, paleobotany, fossil legume.

Second international scientific conference «Present fundamental problems of vegetation classification» (Yalta, 15–20 September 2019)

2019 ◽  
pp. 135-142
Author(s):  
K. V. Ivanova ◽  
A. M. Lapina ◽  
V. V. Neshataev
Keyword(s):  
Plant Communities ◽  
National Archive ◽  
Botanical Garden ◽  
Vegetation Classification ◽  
Scientific Conference ◽  
Scientific Journals ◽  
Time Dynamics ◽  
The Past ◽  
Research Organizations

The 2nd international scientific conference «Fundamental problems of vegetation classification» took place at the Nikitskiy Botanical Garden (Yalta, Republic of Crimea, Russia) on 15–20 September 2019. There were 56 participants from 33 cities and 43 research organizations in Russia. The conference was mostly focused on reviewing the success in classification of the vegetation done by Russian scientists in the past three years. The reports covered various topics such as classification, description of new syntaxonomical units, geobotanical mapping for different territories and types of vegetation, studies of space-time dynamics of plant communities. The final discussion on the last day covered problems yet to be solved: establishment of the Russian Prodromus and the National archive of vegetation, complications of higher education in the profile of geobotany, and the issue of the data leakage to foreign scientific journals. In conclusion, it was announced that the 3rd conference in Nikitskiy Botanical Garden will be held in 2022.

scholarly journals Conservation of the group Piperia (Orchidaceae) and associated plant communities

Lankesteriana ◽  
2015 ◽  
Vol 7 (1-2) ◽  
Author(s):  
Robert Lauri
Keyword(s):  
Plant Community ◽  
Plant Communities ◽  
Human Activity ◽  
Mediterranean Climate ◽  
The Past ◽  
The Mediterranean

The conservation and protection of California native orchids has not been a large focus recently. All California native orchids are terrestrial and many are associated with forest and woodland plant com- munities. However, a number are associated with the Mediterranean Climate plant community known as Chaparral; this includes at least three Piperia Rydb. species. Many Piperia populations and associated Chaparral plant communities have been impacted by human activity over the past several decades, howev- er, there is very little documentation regarding the size, and overall impact to the populations. 

scholarly journals ABSTRACT OF PRACTICAL ACTIVITY OF A WORKGROUP ON «DECOMMUNIZATION» OF PUBLIC AREA OF THE TOWN OF VINNYTSIA: HISTORIAN’S VIEW

2017 ◽  
pp. 196-206 ◽  
Author(s):  
Tatiana Karoyeva
Keyword(s):  
Group Activity ◽  
Point Of View ◽  
Totalitarian Regime ◽  
Practical Activity ◽  
The Public ◽  
The Past ◽  
Public Area ◽  
Totalitarian Regimes ◽  
The Town ◽  
Selection Of

The article deals with practical activity of the workgroup created in order toadminister the Law of Ukraine «On condemnation of totalitarian regimes inUkraine and prohibition of propaganda of their insignia» within the town ofVinnytsia. The workgroup had to reveal objects containing communist andSoviet insignia that exists in the public urban area, to work out advice andpropositions as to replacing town toponyms containing insignia of communistthe totalitarian regime with new names.The article content is arranged in the following blocks: a) creation of theworkgroup; b) decision-making algorithm (from historians’ point of view);c) scientific grounds of historian group activity; d) selection of objects forfurther discussion; e) procedure of discussion of proposed new toponyms.Six historians residing in Vinnytsia were introduced into the workgroup.They belong to various generations and represent both governmental andpublic organizations. The following principles have been defined for organizingof the historian group activity: - toleration (provides for respectful attitude towards various canons ofhistoric memory except for Soviet-communist one);- historicism (due regard to be paid not only to the past but to currenttendencies and challenges of the future as well);- education (the activity has to promote dialogs between various socialgroups and formation of unified collective memory);- local topicality with a view to the formation of unified image/brand of thetown.Several approaches to practical activity on replacing of toponyms havebeen developed in order to ensure smooth work process. They were intendedto be used simultaneously or in sequence depending on the actual situation butevery proposal was concerned from the proposed standpoints in line with allthe following approaches:- historicity (provides for restoration of historical names of places andimplementation of historical and urban practical methods of representationof the town history in toponymy);- commemoration (this approach traditionally provides for drawing attentionto the formation of ethnic and national identity and cultural matrixof the nation, but in the course of solving of nation-wide problems Vinnytsiahistorian group strived to be oriented to the identity of local urbancommunity);- locality (conformity of toponyms to peculiarities of nature, history,economics and culture of Vinnytsia, Bratslavshchyna, and Podillia regions);- concreteness (provides for conformity of a toponym to its actual local(in line with toponym’s scale) circumstances (geographical, biological,industrial, cultural, religious, personological etc.);- actualization (due regard to be paid to the necessity of drawing attentionto certain events and persons that, as a rule, are not of the nationwidescale).Out of total 836 town place names, 147 toponyms (85 names) have beenreplaced with new ones and reasoning for 5 names (12 toponyms) has beenchanged. Thus decommunization encompassed 19% of the town toponymicalsystem.

scholarly journals Mitochondrial Genome Diversity in the Central Siberian Plateau with Particular Reference to Prehistory of Northernmost Eurasia

2019 ◽  
Author(s):  
S. V. Dryomov ◽  
A. M. Nazhmidenova ◽  
E. B. Starikovskaya ◽  
S. A. Shalaurova ◽  
N. Rohland ◽  
...  
Keyword(s):  
Geographic Area ◽  
Mtdna Sequences ◽  
The Past ◽  
South Central ◽  
Sayan Region ◽  
History Of ◽  
Mitochondrial Genome Diversity ◽  
The Last Glacial Maximum ◽  
Complete Mtdna ◽  
The Last Glacial

AbstractThe Central Siberian Plateau was last geographic area in Eurasia to become habitable by modern humans after the Last Glacial Maximum (LGM). Through comprehensive mitochondrial DNA genomes retained in indigenous Siberian populations, the Ket, Tofalar, and Todzhi - we explored genetic links between the Yenisei-Sayan region and Northeast Eurasia over the last 10,000 years. Accordingly, we generated 218 new complete mtDNA sequences and placed them into compound phylogenies along with 7 newly obtained and 70 published ancient mt genomes. Our findings reflect the origins and expansion history of mtDNA lineages that evolved in South-Central Siberia, as well as multiple phases of connections between this region and distant parts of Eurasia. Our result illustrates the importance of jointly sampling modern and prehistoric specimens to fully measure the past genetic diversity and to reconstruct the process of peopling of the high latitudes of the Siberian subcontinent.

scholarly journals Perceptions of 'Srem Folk Fest' participants according to cultural tourism preferences

Turizam ◽  
2021 ◽  
Vol 25 (2) ◽  
pp. 72-82
Author(s):  
Srđan Timotijević ◽  
Maja Mijatov ◽  
Milena Sekulić
Keyword(s):  
Rural Areas ◽  
Practical Implication ◽  
National Commission ◽  
South American ◽  
The Balkans ◽  
The Past ◽  
African Youth ◽  
The Town ◽  
Culture Tradition ◽  
The Sava River

"Srem Folk Fest" has become one of the most popular and significant international folklore festivals in this part of the Balkans since 2004. For the past 16 years, a town Sremska Mitrovica was a host city for European, Asian, South American and African youth. Besides its historical importance, this town on the Sava river could also be considered as the promoter of culture, tradition and folklore of its guests. Each year, the artistic stylization of folklore stage is accompanied by about 20000 visitors during the four festival nights. In 2015, "Srem Folk Fest" was added to the calendar of events of the International Council of Organizations of Folklore Festivals and Folk Arts (CIOFF). The Festival is also recognized by the Serbian National Commission for UNESCO as the keeper of the intangible cultural heritage. One of the main tasks of the paper is related to the need of considering potential and participants' intentions to repeat their visit, as well as of improving the offer and promotion of the town and its surroundings. The aim of the paper is to analyze the data obtained in the context of the behavior and preferences of participants/respondents, to determine the specificity of their role and thus to make a recommendation for creating even better offer. Considering the respondents from 10 countries, the result is especially significant in the form of improving the image of Serbia, as well as their preferences for getting to know rural areas and cultural features. The study contains the survey research, while gained results might provide a good basis for further organization in accordance with their expectations. In addition, the results could also find practical implication in terms of providing basic information necessary to expand this event within the surrounding area of Sremska Mitrovica.

scholarly journals Extension Staffing Models to Serve 4-H Clientele in Changing Times

2010 ◽  
Vol 5 (1) ◽  
pp. 105-111
Author(s):  
Donna R. Gillespie ◽  
Cindy A. Kinder
Keyword(s):  
County Level ◽  
Budget Cuts ◽  
The Past ◽  
South Central ◽  
Professional Network ◽  
Staffing Patterns ◽  
Changing Times ◽  
University Of Idaho ◽  
Central Idaho

In response to budget cuts in 2002, 4-H staffing models were restructured. The response by University of Idaho Extension was intended to continue meeting the needs of Idaho’s citizens with fewer UI Extension faculty. This staffing reorganization led to the formation of the District III 4-H Team who united to bring stronger 4-H programs to south central Idaho and expand programs to underserved audiences. Information from surveys and interviews over the past seven years reflects the effectiveness, challenges and successes of the District III 4-H Team. In Making the Best Better: 4-H Staffing Patterns and Trends in the Largest Professional Network in the Nation (2007), author Kirk A. Astroth notes a nationwide change in 4-H leadership at the county level from 4-H faculty to program assistants or coordinators. The information gathered in our research may help other states determine staffing models to meet the needs of clientele in these changing times.

scholarly journals Cave-dwelling bats (Mammalia: Chiroptera) and conservation concerns in South central Mindanao, Philippines

2015 ◽  
Vol 7 (15) ◽  
pp. 8185 ◽  
Author(s):  
Krizler C. Tanalgo ◽  
John Aries G. Tabora
Keyword(s):  
Conservation Status ◽  
Anthropogenic Disturbances ◽  
The Philippines ◽  
Large Species ◽  
Local Disturbance ◽  
South Central ◽  
Bush Meat ◽  
High Species Richness ◽  
The Town ◽  
Effective Conservation

<p>The stable microclimate in caves provides a relatively constant habitat for many bat species in the Philippines, but human encroachment continues to disrupt this habitat and imperil many of the species roosting in the caves.  In South central Mindanao, the diversity and conservation status of cave bats remain undocumented and unexplored.  We employed mist-netting to capture bats from five different caves within the town of Kabacan, northern Cotabato, Philippines.  A total of 14 bat species were identified including the Philippine endemics <em>Hipposideros pygmaeus </em>and <em>Ptenochirus jagori </em>and the threatened <em>Megaerops wetmorei. </em>However, despite the declining conservation status of the bats, local disturbance such as bat hunting for bush meat and unregulated tourism are currently taking place in the caves.  Large species such as <em>Eonycteris spelaea </em>and <em>Rousettus amplexicaudatus </em>are killed almost every day for food and trade.  Therefore, the high species richness, and the presence of endemic and threatened species coupled with the occurrence of anthropogenic disturbances in caves suggests the need for an urgent and effective conservation intervention involving the local government and public community.</p><div> </div>

The ISC Electronic Archive of Printed Station and Network Bulletins

2021 ◽  
Author(s):  
Domenico Di Giacomo ◽  
Daniela Olaru ◽  
Adrian Armstrong ◽  
James Harris ◽  
Dmitry A. Storchak
Keyword(s):  
Electronic Archive ◽  
The Past ◽  
Single Station ◽  
International Seismological Centre ◽  
The Town ◽  
Wide Community

Abstract We present an archive of scanned instrumental seismic bulletins pertaining to either a single station or a set of stations (network). This new service by the International Seismological Centre (ISC), called the ISC Electronic Archive of Station and Network Bulletins, is openly available at the ISC website. The archive is likely to be the most comprehensive to date, thanks to the collection from various sources done by the ISC in the past several decades. The search for scans of a seismic bulletin is based on the location of the town of the institution producing a bulletin. As such, the electronic archive is easy to use and is likely to facilitate the work of a wide community interested in studying past earthquakes and involved in preservation and digitization of analog recordings.

A Past as a Place

2019 ◽  
pp. 271-301
Keyword(s):  
Case Studies ◽  
Central Andes ◽  
Fractal Model ◽  
Archaeological Research ◽  
The South ◽  
The Past ◽  
South Central ◽  
Specific Material ◽  
Ontological Framework

The existence of a situational concept indissolubly spatial and temporal in the Bolivian altiplano, better defined by the aymara term pacha, in the south-central Andes is well sustained by ethno-historic and ethnographic accounts. However, the implications of this concept for archaeological research have not been considered enough. Is especially suggestive that, the past being necessarily a place, humans may have conceived various ways to physically interact with their pasts through ceremonialism. This chapter considers the implication of this idea within a framework of archaeology of time, applying a fractal model of the pacha concept in its various nested scales. In order to illustrate the material forms that the idea of relating with the entities of a “place of the past” can adopt, this chapter discusses three case-studies along a historic sequence. The chapter finishes with some thoughts about the specific material conducts that can be adopted, even within the same ontological framework.

Evolutionary Trends in Columnar Cacti under Domestication in South-Central Mexico

2021 ◽  
pp. 137-163
Author(s):  
Alejandro Casas ◽  
Alfonso Valiente-Banuet ◽  
Javier Caballero
Keyword(s):  
Central Mexico ◽  
Evolutionary Trends ◽  
Columnar Cacti ◽  
South Central
Sign in / Sign up

Export Citation Format

Share Document