New data on the taxonomy, ecology, and conservation of the rediscovered Louisea edeaensis (Bott, 1969) (Brachyura: Potamoidea: Potamonautidae), an endangered freshwater crab from Cameroon

Zootaxa ◽  
2017 ◽  
Vol 4231 (2) ◽  
pp. 273 ◽  
Author(s):  
PIERRE A. MVOGO NDONGO ◽  
THOMAS VON RINTELEN ◽  
CHRISTOPH D. SCHUBART ◽  
CHRISTIAN ALBRECHT ◽  
JOSEPH L. TAMESSE ◽  
...  

The rare and endangered Cameroonian potamonautid freshwater crab Louisea edeaensis (Bott, 1969) was recently rediscovered during a biological inventory of the freshwater decapods of southern Cameroon. The previous record dated back more than 100 years. The new specimens allow an updated diagnosis of the species based on comparisons of important taxonomic characters. Photographs of the carapace, gonopods, third maxillipeds, and chelipeds of the largest adult male specimen from Lake Ossa, Cameroon are provided, as are the first photographs of living specimens. The conservation implications of the new data on habitat, population structure, distribution, and threats for this rare and endangered species are discussed. 

Zootaxa ◽  
2018 ◽  
Vol 4394 (3) ◽  
pp. 407 ◽  
Author(s):  
PIERRE A. MVOGO NDONGO ◽  
THOMAS VON RINTELEN ◽  
CHRISTIAN ALBRECHT ◽  
JOSEPH L. TAMESSE ◽  
NEIL CUMBERLIDGE

The rare and endangered Cameroonian potamonautid freshwater crab, Louisea balssi (Bott, 1959), was recently rediscovered after not having been seen for the last 109 years and presumed extinct. The new specimens of L. balssi were collected from the Southwest Region of Cameroon, about 80 km from the type locality, and include the first adult male to be recorded for this species. A redescription of L. balssi, which includes for the first time the adult characters of the male gonopods and chelipeds, is provided. New data on the habitat, population structure, and distribution of this species are also provided. Threats to the species and the implications to its conservation are discussed. 


2019 ◽  
Vol 26 (6) ◽  
pp. 319-324
Author(s):  
Victor K. Uteshev ◽  
Edith N. Gakhova ◽  
Ludmila I. Kramarova ◽  
Natalia V. Shishova ◽  
Svetlana A. Kaurova ◽  
...  

In modern biology, a search for efficient and safe ways of long-term storage of animal genomes is vital for the survival of rare and endangered species. To date, the only reliable method of prolonging the preservation of genome is deep freezing of somatic and reproductive cells, including spermatozoa. Here we overview the current state of reproductive technologies and present the cryopresevation strategies of genetic material of selected amphibian species. These strategies were developed at the Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia. Cryopreservation could help managing the threatened populations of amphibian species through genome storage and mediate the production of healthy animals from the stored material.


2019 ◽  
pp. 42-44
Author(s):  
I.V. GUSAROV ◽  
V.A. OSTAPENKO ◽  
T.V. NOVIKOVА

Впервые в мире создана популяция зубров на территории 60 градусов северной широты. В новых климатических условиях разведения и сохранения зубров определены и проанализированы факторы существования вида на севере Европейской части РФ. Выявлены признаки, динамика численности, которые являются составной частью системы, предназначенной для управления биоразнообразием. Интродукция, являясь процессом введения в экосистему нехарактерных для нее видов, может усиливать изменения биоценозов как положительно, так и отрицательно. Насколько быстро и успешно проходит процесс адаптации заселенного вида, и усматривается его влияние на окружающую среду зависит дальнейшее существование зубров и в целом биоразнообразия. В статье обсуждаются вопросы взаимоотношения зубров с другими видами копытных и хозяйственной деятельностью человека, а также дальнейшим использованием зубров в сельскохозяйственном производстве. Пластичность зубров, выявление изменений и их анализ при вселении видов в новые условия обитания необходимы не только для определения развития или деградации биоценозов и в целом экосистемы, но и прогноза социально-экономических последствий интродукции как одного из методов сохранения редких и исчезающих видов фауны.For the first time in the world, a bison population has been created in an area of 60 degrees north latitude. In the new climatic conditions of breeding and preservation of bison, the factors of the species existence in the north of the European part of the Russian Federation are identified and analyzed. The signs, dynamics of abundance, which are an integral part of the system designed to manage biodiversity are identified, since the preservation of biological diversity on the planet is one of the main problems of our time. Introduction, being the process of introducing non-typical species into an ecosystem, can enhance changes in biocenoses, both positively and negatively. The question posing sounds especially when it comes to such a large hoofed animal as the European bison. How quickly and successfully the process of adaptation of the universe takes place and its environmental impact is seen depends on the continued existence of bison and biodiversity in general. The article discusses the relationship of bison with other types of ungulates and human activities, as well as the further use of bison in agricultural production. How these issues will be resolved positively depends on the future of these animals. Thus, the plasticity of bison, the identification of changes and their analysis, with the introduction of species into new habitat conditions is necessary not only to determine the development or degradation of biocenoses and the ecosystem as a whole, but also to predict the socio-economic consequences due to the introduction as one of the methods of preserving rare and endangered species of fauna.


2014 ◽  
Vol 21 (5) ◽  
pp. 601-609
Author(s):  
Wang Deyun ◽  
Peng Jie ◽  
Chen Yajing ◽  
Lü Guosheng ◽  
Zhang Xiaoping ◽  
...  

2020 ◽  
Vol 957 (3) ◽  
pp. 47-53
Author(s):  
E.A. Kravets

The author offers mapping and geoecological analysis of the Russian Federation regions presence in the state program “Environmental Protection”. The unequal distribution of the program’s targets and activities in different regions is revealed. A considerable number of relevant environmental problems for several mentioned regions have not been reflected in the program. It is important to increase the area of specially protected natural areas for a significant number of subjects of the Russian Federation. The status “part of the territory occupied by specially protected natural territories of Federal value in the total area of the subject of the Russian Federation” is recommended to be assigned all regions of Russia. Identification and elimination of objects of accumulated environmental damage that threat to the Volga river is relevant, at least for all the regions in which the Volga flows. Not all regions with a high level of air pollution and/or large masses of air pollutants have the indicator “reduction of total emissions for the reporting year”. It is necessary to increase the Program of measures for the protection of rare and endangered species of plants and to expand the list of regions in which it is planned to protect rare and endangered species of animals.


2021 ◽  
Vol 13 (6) ◽  
pp. 3007
Author(s):  
Xiaojiong Zhao ◽  
Jian Wang ◽  
Junde Su ◽  
Wei Sun ◽  
Haoxian Meng

Quantitative assessment and evaluation of ecological parameters and biodiversity conservation are prime concerns for long-term conservation of rare and endangered species and their associated habitats in any ecological region. In this study, Gansu Province, a biodiversity hotspot, was chosen as the research area. We predicted the distribution patterns of suitable habitats for rare and endangered species. The replacement cost method was adopted to calculate the conservation value of rare and endangered species. The suitable habitat distribution area of rare and endangered wild animals reached 351,607.76 km2 (without overlapping area), while that of plants reached 72,988.12 km2 (without overlapping area). The conservation value of rare and endangered wildlife is US $1670.00 million. The high-value areas are mostly concentrated in the south and north of Gansu Province. The conservation value of rare and endangered wild plants is US $56,920.00 million. The high-value areas are mostly concentrated south of Gansu Province. The conservation value is US $58,590.00 million a year, and its distribution trend is gradually decreasing from northeast to southwest, with the highest in the forest area south of Gansu Province, followed by the Qilian Mountain area in the north. These results are of great significance for future improvement of the evaluation index system of ecosystem services and the development of ecosystem services and management strategies.


2021 ◽  
Vol 14 (9) ◽  
pp. 3156-3167
Author(s):  
Annick Estelle Gboze ◽  
Odette Mma Adingira ◽  
Ali Sanogo ◽  
Justin N’Dja Kassi

This study was initiated to contribute to the sustainable management of the Badénou classified forest. Its objective was to contribute to a better knowledge of the flora of this classified forest and, beyond that, to provide details on the distribution of species on the scale of Côte d'Ivoire. Surface survey methods and itinerant inventories were adopted during this work in 30 plots, 25 of which were set aside for post-cultural fallow. A total of 241 species were recorded throughout the massif, divided into 184 genera and 53 families. The botany inventories in all parts of the forest helped identify 241 species have been recorded in Badénou forest during field investigations, distributed among 183 genera and 53 families. Among those species, 162 (67.22%), 12 (4.98%), 10 (4.15%) and 10 (4.15%) are phanerophytes, therophytes, geophytes and hemicryptophytes, respectively. 34 species (14.11%) are lianas. Most species are dispersed by endozoochory (108 species 44.40%), either bear small, fleshy fruits that are dispersed by animals, either by endozoochory (106 species = 43.98%). Phytochory analysis shows relevant proportion of widespread species (96 species = 39.83%) compared to endemic guineo-congolian species (44 species = 18.26%). 5 species (2.07%) are guineo-congolian species that are endemic from West Africa, among which only one was endemic from Côte d’Ivoire. Those proportions indicate that the forest under study is included in dry rainforest sensu Guillaumet & Adjanohoun, and match with the widespread guineo-congolian–soudano-zambezian zone defined by White & Edwards. Unfortunately, this forest is still under enormous human pressure. Conservation efforts for endemic, rare and endangered species and the classified forest itself must be a priority. La présente étude a été initiée pour contribuer à la gestion durable de la forêt classée de Badénou. Elle avait pour objectif de contribuer à une meilleure connaissance de la flore de cette forêt classée et, au-delà, à apporter des précisions sur la répartition des espèces à l’échelle de la Côte d’Ivoire. Les méthodes de relevé de surface et des inventaires itinérants ont été adoptées lors de ces travaux dans 30 parcelles dont 25 dans les jachères postculturales. Au total 241 espèces ont été recensées dans l’ensemble du massif, réparties en 184 genres et 53 familles. Parmi ces espèces, 162 (67,22%) sont des phanérophytes, 12 (4,98%) espèces sont des thérophytes, 10 (4,15%) espèces sont des géophytes et 10 (4,15%) autres sont des hémicryptophytes. 34 espèces (14,11%) sont des lianes. La plupart des espèces sont soit pourvues d’appendices permettant leur dissémination par le vent (108 espèces = 44,40%), soit possedent de petites diaspores charnues dont la dissémination est assurée par les animaux, soit par endozoochorie (106 espèces = 43,98%). L’analyse des phytochories montre une contribution importante des espèces à large répartition (39,83% soit 96 espèces) par rapport aux espèces guinéo-congolaises (18,26%). 5 espèces (2,07%) sont des guinéo-congolaises endémiques de l’Afrique de l’Ouest, dont une est endémiques de Côte d’Ivoire. Ces différentes proportions confirment l’appartenance de la forêt étudiée à la zone de forêt dense sèche de Guillaumet & Adjanohoun, qui correspond à la zone de transitio guinéo congolais-soudano-zambézienne de White & Edwards. Malheureusement, la forêt classée de Badenou subit encore d’énormes pressions anthropiques. Les efforts de conservation des espèces endémiques, rares et menacées d’extinction et de la forêt classée elle-même doivent être une priorité.


2021 ◽  
Vol 8 (1) ◽  
pp. 29-34
Author(s):  
Vincenzo Ferri ◽  
Paolo Crescia ◽  
Christiana Soccini ◽  
Alessio Olini ◽  
Stefano Celletti

[The spring presence of two individuals of the Sea lamprey, Petromyzon marinus, in the River Mignone near Tarquinia (Northern Lazio) could highlight a new Italian reproductive site of this rare and endangered species. This exceptional possibility could certainly be favored by the good quality of both the waters of the Mignone, and the environmental context of the record, but would require the urgent equipment of the barrier of Le Mole with a fish ladder in order to allow the sea lamprey’s upstream migration towards the areas of the upper course, even more suitable for their reproduction].   [Article in Italian]


2021 ◽  
Vol 3 (6) ◽  
pp. 44-49
Author(s):  
Thị Hải Nguyễn ◽  
Huy Thái Trần ◽  
Thế Cường Nguyễn ◽  
Thị Thanh Vân Trần

In Na Hang Nature Reserve there was identified 647 medicinal plant species belonging to 137 families, 4 vascular divisions: Lycopodiophyta with 3 species, 2 families; Polypodiophyta with20 species, 12 families; Pinophyta with 6 species, 4 families; Magnoliophyta with 618 species, 119 families. Concerning the diversity index: the family index: 4.72; the genus index: 1.49; the genus index/the family index: 3.16. In Na Hang Nature Rserve 10 families more species occupying 7.30% of the total families of medicinal plants with the total of species occupying 31.68% and 28.64% of the total of genus. The family more diverse is Asteraceae with 32 species, occupying 4.95% of the total of medicinal plants identified; following is Rubiaceae with 28 species (4.33%), Euphorbiaceae with 26 species (4.02%); Moraceae with 23 species (3.55%); Cucurbitaceae, Verbenaceae with the same number of species 18 (2.78%); Araceae with 17 species (2.63%); Zingiberaceae with 16 species (2.47%); Urticaceae with 15 species (2.32%); and the last are families Poaceae of species 12 (1.85%) in the total of species. 10 genera more diverse with 59 species (9.12% of the total of medicinal plants), Ficus (Moraceae) is more diverse with 15 species (2.32% of the total of medicinal plants) and another genera with from 4 to 7 species. In Nature Reserve of Na Hang we have confirmed the distribution of 30 precious and rare and endangered species priorto the conservation: 23 species in Vietnam Red Data Book (2007): VU - 16 species, EN - 07 species; 17 species in Red List of medicinal plant of Vietnam (2006):VU - 10 species, EN - 6 species and CR – 01 species; 07 species in IUCN Red List (2014): LR - 06 species and VU – 01 species.


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