scholarly journals LOS MAMÍFEROS DE MÉXICO: DISTRIBUCIÓN Y ESTADO DE CONSERVACIÓN

1997 ◽  
Vol 2 (1) ◽  
pp. 33 ◽  
Author(s):  
Hector Arita W. ◽  
Gerardo Ceballos González
Keyword(s):  
Introduced Species ◽  
Endemic Species ◽  
Conservation Status ◽  
Marine Species ◽  
Environmental Problems ◽  
Number Of Species ◽  
Mammal Fauna ◽  
The World ◽  
Mammalian Faunas ◽  
Conservation Concern

Abstract: In this paper we present an updated checklist of the complete mammal fauna of Mexico, including all the native and introduced terrestrial and marine species that have been reported for the country. With 504 species, Mexico has one of the most diverse mammalian faunas of the world, second only to Indonesia in terms of number of species. There are 147 endemic species and the rest are a combination of species of Nearctic and Neotropical affinities in similar proportions. The conservation status of species indicates that there are severe environmental problems, because eight species have disappeared in the last century, and 202 are classified in one of the categories of conservation concern. Finally, there are three introduced species that have become established in the country.Resumen: En este trabajo presentamos una lista actualizada de los mamíferos terrestres, marinos e introducidos de México. Con 504 especies, se considera que el país tiene una de las faunas más ricas del mundo, de las cuales 147 son endémicas y el resto es una combinación de elementos neárticos y neotropicales en proporciones casi iguales. El estado de conservación de los mamíferos indica que hay problemas ambientales severos, ya que ocho especies se han extinguido o desaparecido en el último siglo, y 202 se encuentran clasificadas en alguna categoría de riesgo. Finalmente, hay tres especies introducidas que tienen poblaciones silvestres ya establecidas.Palabras clave: distribución, diversidad de especies, endemicidad, conservación, mamíferos,México.

IX.—A Cytotaxonomic Survey of the Pteridophytes of Jamaica

1966 ◽  
Vol 66 (9) ◽  
pp. 169-237 ◽  
Author(s):  
Trevor G. Walker
Keyword(s):  
Endemic Species ◽  
Interspecific Hybrids ◽  
Number Of Species ◽  
Species Complexes ◽  
The World ◽  
First Time

SynopsisResults are presented of a cytological survey of the Pteridophyte flora of Jamaica. Approximately 270 species or cytotypes were investigated, only a few of which have previously been investigated from other parts of the world. Several genera have been cytologically examined for the first time and their phylogeny has been discussed in the light of these findings. A number of species complexes and interspecific hybrids have been revealed. The overall statistics of the survey are compared with those compiled from an investigation of the Pteridophyte flora of Ceylon, by Manton and Sledge (1954). Finally, endemic species are discussed in the light of the cytological results and the time known to have been available for their establishment in Jamaica.

scholarly journals A new and endemic species of Drosera (Droseraceae) from Madagascar

2020 ◽  
Vol 153 (2) ◽  
pp. 283-291 ◽  
Author(s):  
Andreas S. Fleischmann ◽  
Nivo H. Rakotoarivelo ◽  
Aymeric Roccia ◽  
Paulo M. Gonella ◽  
Lala Roger Andriamiarisoa ◽  
...  
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Field Observations ◽  
Number Of Species ◽  
Iucn Categories ◽  
The World ◽  
A New Species

Background and aims – This study is part of an ongoing revision of the world Drosera species. During herbarium revisions of Drosera from Madagascar, a new species was identified and is here described.Methods – The species’ morphology is described based on herbarium studies and observation of living plants in situ, and ecological notes from field observations are provided. The species is compared and contextualized within the current subgeneric classification of Drosera.Key results – The new species, Drosera arachnoides, is recognized as most closely related to another Malagasy-endemic, D. humbertii, from which it is morphologically and ecologically distinct. The new species is placed within D. subg. Drosera sect. Ptycnostigma. Based on the restricted occurrence, the species is assessed as Vulnerable, following IUCN categories and criteria. A key to the Drosera species from Madagascar is provided.Conclusion – Drosera arachnoides is the second endemic Drosera species in Madagascar and raises the total number of species on the island to six.

scholarly journals An annotated checklist of the endemic Carabidae (Coleoptera) of Egypt

Check List ◽  
2012 ◽  
Vol 8 (2) ◽  
pp. 197 ◽  
Author(s):  
Mahmoud S. Abdel-Dayem
Keyword(s):  
Endemic Species ◽  
Carabid Beetles ◽  
The World ◽  
Conservation Concern ◽  
Annotated Checklist

Endemic species are usually not very widespread in their distribution, but are only found in a particular region and nowhere else in the world. Because of this, they are of great conservation concern. A checklist of the endemic carabid beetles of Egypt was compiled and updated from published and unpublished records including long-term surveys. As far as can be ascertained, there are 39 valid carabid species and subspecies from 28 genera that are endemic to Egypt including Sinai. These represent about 16.3% of the total carabid fauna recorded from the country, and belong to five subfamilies: Brachininae, Cicindelinae, Harpalinae, Scaritinae, and Trechinae. I provide notes about type localities, depositories and distribution.

scholarly journals MAMÍFEROS DE ZACATECAS

2017 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
César A. Ríos-Muñoz ◽  
Deborah V. Espinosa-Martínez ◽  
Claudia Ballesteros- Barrera ◽  
Gustavo Ameneyro-Cruz ◽  
Gerardo López-Ortega ◽  
...  
Keyword(s):  
Species Distribution ◽  
Endemic Species ◽  
The State ◽  
Antilocapra Americana ◽  
Northern Mexico ◽  
Mammal Fauna ◽  
The World ◽  
World Trend

Resumen:El estado de Zacatecas se encuentra ubicado en el centro geográfico de México, al norte del EjeVolcánico Transversal. Para llevar a cabo este trabajo se reviso la literatura disponible en referencia a los mamíferos que han sido registrados en el territorio estatal, encontrando que la mayor parte de los estudios se han realizado en los últimos 60 años. Ocho órdenes, 21 familias, 69 géneros y 118 especies se reconocen actualmente para el estado, de las cuales 31 son endémicas del país, pero ninguna exclusiva del estado. Los órdenes mejor representados son Rodentia (51 especies), Chiroptera (41) y Carnivora (15), lo que asemeja a la tendencia mundial y existen 15 taxones descritos con base en ejemplares procedentes del estado. En cuanto a la distribución de las especies, hay una mayor presencia de especies con afinidad neártica (74) que mesoamericana (29) y neotropical (15). Se han registrado 15 especies en algún listado de conservación nacional e internacional. Se considera que las poblaciones de cinco especies han replegado su distribución actual o fueron extirpadas del estado, y de éstas, sólo Cynomys mexicanus y Antilocapra americana han sido reintroducidas.Palabras clave: conservación, distribución, diversidad, mastofauna, norte de México. Abstract:The state of Zacatecas is located in the geographic center of Mexico, north of the Trans-MexicanVolcanic Belt. Available literature of mammal records in the state was reviewed, finding that moststudies have been carried out in the last 60 years. Eight orders, 21 families, 69 genera and 118species are currently known for the state, with 31 endemic species to the country. The most diverse orders are Rodentia (51 species), Chiroptera (41), and Carnivora (15), similar to the World trend; there are 15 taxa described based on specimens collected from the state. Regarding the species distribution, most of them have Nearctic affinities (74), rather than Mesoamerican (29) and Neotropical (15). Fifteen species are listed in either national or international conservation lists. We consider that five species disappeared or were extirpated from the state, and from those, only Cynomys mexicanus and Antilocapra americana have been reintroduced.Key words: conservation, distribution, diversity, mammal fauna, northern Mexico.

scholarly journals Marine Environmental Protection

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Jianli Xu ◽  
Youquan Yu ◽  
Chunhong Lu ◽  
Junhong Lian
Keyword(s):  
Human Development ◽  
Marine Species ◽  
Environmental Problems ◽  
Coastal Areas ◽  
Human Beings ◽  
Marine Environmental Protection ◽  
The World ◽  
The Face ◽  
Ancient Times ◽  
Marine Environmental

ABSTRACT The sea is the hometown of life, the ocean is closely related to human beings. The ocean accounts for 70.8% of the Earth's area. It absorbs heat from the sun and releases heat into the atmosphere to regulate the climate. Therefore, the climate in the coastal areas is suitable and the environment is beautiful. Since ancient times, the world is densely populated. Forty percent of people live in coastal areas. American Oceanographer Silesia Earl said that our planet is characterized by the ocean's dominating point, weather and climate is also controlled by the ocean-like marine species of the crown and the world, if the ocean changes, the Earth the characteristics will also change. Environmental problems have been plagued by human development problems, in the face of many environmental problems, human development, you need a guiding ideology to avoid causing more difficult to save the environment damage and this is the idea of sustainable development.

Boswellia socotrana: One or Two Taxa?

2020 ◽  
Vol 28 (1) ◽  
pp. 17-23 ◽  
Author(s):  
Samuel Lvončík ◽  
Radomír Řepka
Keyword(s):  
Endemic Species ◽  
Conservation Status ◽  
Important Species ◽  
Socotra Island ◽  
Distribution And Ecology ◽  
Morphological Differences

There are seven endemic species of Boswellia Roxb. ex Colebr. on Socotra Island, Yemen. Boswellia socotrana Balf. f. is a culturally, economically, and ecologically important species on the island. The name Odina aspleniifolia Balf. f. has been considered as a synonym, but there are morphological differences between the two taxa sufficient to justify their distinction at subspecific rank. Therefore, O. aspleniifolia is transferred to Boswellia as B. socotrana subsp. aspleniifolia (Balf. f.) Lvončik. A lectotype is designated for O. aspleniifolia. The distribution and ecology of both subspecies are discussed, as is their conservation status.

Beaucarnea olsonii (Ruscaceae), a new species of ponytail palm from southwestern Puebla, Mexico

Phytotaxa ◽  
2016 ◽  
Vol 286 (1) ◽  
pp. 13
Author(s):  
VANESSA ROJAS-PIÑA ◽  
LEONARDO O. ALVARADO-CÁRDENAS
Keyword(s):  
New Species ◽  
Endemic Species ◽  
Conservation Status ◽  
Deciduous Forests ◽  
Central Mexico ◽  
Distribution Map ◽  
Southern Central ◽  
Tropical Deciduous Forests ◽  
A New Species

Beaucarnea olsonii is described and illustrated from tropical deciduous forests of SW Puebla, Mexico. The new species can be distinguished from other Beaucarnea species by its massively swollen base that abruptly tapers into slender branches, by its conspicuously long stigma, and by its pedicel articulation that occurs at 2/3 of the length of the pedicel below the flower. With this new addition, the total number of endemic species of Beaucarnea for Mexico increases to 10, making this country the greatest center of diversification and endemism for the genus. We also provide a distribution map and a conservation status recommendation for the new species, as well as a key to the Beaucarnea species of southern central Mexico.

scholarly journals Handrails through the Swamp? A Pilot to Test the Integration and Implementation Science Framework in Complex Real-World Research

2021 ◽  
Vol 13 (10) ◽  
pp. 5491
Author(s):  
Melissa Robson-Williams ◽  
Bruce Small ◽  
Roger Robson-Williams ◽  
Nick Kirk
Keyword(s):  
Pilot Study ◽  
Case Studies ◽  
Implementation Science ◽  
Real World ◽  
Environmental Problems ◽  
Environmental Research ◽  
Integrative Framework ◽  
The World ◽  
Science Framework ◽  
Real World Problems

The socio-environmental challenges the world faces are ‘swamps’: situations that are messy, complex, and uncertain. The aim of this paper is to help disciplinary scientists navigate these swamps. To achieve this, the paper evaluates an integrative framework designed for researching complex real-world problems, the Integration and Implementation Science (i2S) framework. As a pilot study, we examine seven inter and transdisciplinary agri-environmental case studies against the concepts presented in the i2S framework, and we hypothesise that considering concepts in the i2S framework during the planning and delivery of agri-environmental research will increase the usefulness of the research for next users. We found that for the types of complex, real-world research done in the case studies, increasing attention to the i2S dimensions correlated with increased usefulness for the end users. We conclude that using the i2S framework could provide handrails for researchers, to help them navigate the swamps when engaging with the complexity of socio-environmental problems.

Correcting a 135-year error: Limulidae Leach, 1819 (Chelicerata, Xiphosura) is the proper authority, not Limulidae Zittel, 1885

2021 ◽  
pp. 1-2
Author(s):  
Philip M. Novack-Gottshall ◽  
Roy E. Plotnick
Keyword(s):  
Horseshoe Crab ◽  
Marine Species ◽  
Limulus Polyphemus ◽  
Junior Synonym ◽  
Living Fossil ◽  
New Family ◽  
The Family ◽  
The World ◽  
Modern Genus

The horseshoe crab Limulus polyphemus (Linnaeus, 1758) is a famous species, renowned as a ‘living fossil’ (Owen, 1873; Barthel, 1974; Kin and Błażejowski, 2014) for its apparently little-changed morphology for many millions of years. The genus Limulus Müller, 1785 was used by Leach (1819, p. 536) as the basis of a new family Limulidae and synonymized it with Polyphemus Lamarck, 1801 (Lamarck's proposed but later unaccepted replacement for Limulus, as discussed by Van der Hoeven, 1838, p. 8) and Xyphotheca Gronovius, 1764 (later changed to Xiphosura Gronovius, 1764, another junior synonym of Limulus). He also included the valid modern genus Tachypleus Leach, 1819 in the family. The primary authority of Leach (1819) is widely recognized in the neontological literature (e.g., Dunlop et al., 2012; Smith et al., 2017). It is also the authority recognized in the World Register of Marine Species (WoRMS Editorial Board, 2021).

scholarly journals Conservation status assessment of the highest forests in the world: Polylepis flavipila forests as a case study

2021 ◽  
Vol 7 (1) ◽  
pp. 160-169
Author(s):  
Fressia Nathalie Ames-Martínez ◽  
Harold Rusbelth Quispe-Melgar ◽  
Daniel Renison
Keyword(s):  
Conservation Status ◽  
The World ◽  
Status Assessment
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