scholarly journals Evaluation of the Amphibian Fauna of the Semi-arid and Arid Grassland Habitats in and around the Mayureshwar, Rehekuri, and Karmala Wildlife Sanctuaries in Maharashtra, India

2020 ◽  
Vol 27 (2) ◽  
pp. 129-136
Author(s):  
Nikhil Dandekar ◽  
Varun Kherr ◽  
Chaitanya Risbud ◽  
Mayuresh Kulkarni ◽  
Makarand Ketkar ◽  
...  
Keyword(s):  
Chytrid Fungus ◽  
Population Status ◽  
Amphibian Species ◽  
Semiarid Environments ◽  
Preliminary Study ◽  
Surrounding Areas ◽  
Bodies Of Water ◽  
Grassland Habitats ◽  
Semi Arid ◽  
Arid And Semiarid

Few studies document amphibian species composition from arid and semiarid environments. Scatteredbodies of water in the semi-arid and arid landscape around Pune, Maharashtra, India, could be viable amphibian habitats; however; information on amphibians using these bodies of water is not available. In a preliminary study, we assessed the amphibian diversity and population status in three wildlife sanctuaries and surrounding areas near Pune. We also compared the use of artificial and natural ponds by amphibians and surveyed the amphibians for the presence of the chytrid fungus.

scholarly journals La paradoja de mezquites (Prosopis spp.): La invasión de especies o potenciadores de la biodiversidad?

2017 ◽  
pp. 23 ◽  
Author(s):  
Jordan Golubov ◽  
María C. Mandujano ◽  
Luis E. Eguiarte
Keyword(s):  
Keystone Species ◽  
Arid Environments ◽  
Perennial Species ◽  
Semiarid Environments ◽  
High Species Diversity ◽  
Ecological Importance ◽  
Associated Species ◽  
Semi Arid ◽  
Arid And Semiarid

Arid and semi-arid environments contain relatively high species diversity and are subject to intense use, in particular extensive cattle grazing. The expansion of perennial species in to the grasslands decreases the value of the rangeland, because it makes necessary to control the shrubs, which is not practical in the long term. This paper is a bibliographic review of the ecological importance of the Prosopis (mequite) genus. We compiled information on all the species associated to mesquite (ca. 208 genera and 600 species from different taxa) and we propase that it is important to conserve the mesquites in order to maintain the diversity of the other associated species. We also stress the importance of mesquite as a keystone species in the balance of nitrogen and carbon in the arid and semiarid environments soils. We conclude that the conservation of the mesquites is very relevant, in particular in areas where people want to remove them and convert the environment to grasslands.

scholarly journals Conservation translocations for amphibian species threatened by chytrid fungus: A review, conceptual framework, and recommendations

2021 ◽  
Author(s):  
Ben C. Scheele ◽  
Matthijs Hollanders ◽  
Emily P. Hoffmann ◽  
David A. Newell ◽  
David B. Lindenmayer ◽  
...  
Keyword(s):  
Conceptual Framework ◽  
Chytrid Fungus ◽  
Amphibian Species

scholarly journals Establishement of a national monitoring program based on environmental DNA for amphibians and the chytrid fungus Batrachochytrium dendrobatidis     

2021 ◽  
Vol 4 ◽  
Author(s):  
Omneya Osman ◽  
Johan Andersson ◽  
Tomas Larsson ◽  
Mats Töpel ◽  
Alexander Eiler
Keyword(s):  
Batrachochytrium Dendrobatidis ◽  
National Level ◽  
Monitoring Program ◽  
12S Rrna ◽  
Rrna Gene ◽  
Chytrid Fungus ◽  
Rana Arvalis ◽  
Amphibian Species ◽  
National Monitoring ◽  
Wide Range

National monitoring programs provide the basis for evaluating the integrity of ecosystems, their responses to disturbances, and the success of actions taken to conserve or recover biodiversity. In this study, we successfully established a national program for the invasive chytrid fungus Batrachochytrium dendrobatidis (Bd) based on dual TaqMan assays. Amphibian diversity based on metabarcoding of the mitochondrial 12S rRNA gene was also performed. Assays were optimized for sensitive detection of target species from a wide range of amphibian ponds with variable potential of inhibitions for eDNA based detection. An amphibian mock community of 5 species was used to validate the metabarcoding approach while internal standards were used in the case of the dual TaqMan assays. First sampling of over 170 ponds in Norway resulted in Bd detection in 12 environmental samples and one swab sample taken over multiple years indicating the establishment of Bd in Norway. Five amphibian species Bufo bufo, Lissotriton vulgaris, Triturus cristatus, Rana arvalis and Rana temporaria as predicted from data in long-term citizen science reporting systems were widely detected in the collected eDNA samples. Our large scale-monitoring program indicates a low risk of a Bd outbreak and amphibian decline caused by chytridiomycosis but continued monitoring is recommended in the future. These findings indicate that eDNA is an effective method to detect invasive species, and to monitor endangered amphibian species. Still, several shortcomings (such as PCR inhibitors and sample volume) were identified that need to be addressed to improve eDNA-based monitoring at the national level.

scholarly journals Preliminary study on Small Ruminant GIT Helminthiasis in Select Arid and Semi-arid Pastoral and Agro-pastoral Areas of Afar Region, Ethiopia

2017 ◽  
Vol 4 (12) ◽  
pp. 60-67
Author(s):  
Hailegebrael Bedada ◽  
◽  
Fikru Gizaw ◽  
Wossene Negash ◽  
◽  
...  
Keyword(s):  
Small Ruminant ◽  
Afar Region ◽  
Preliminary Study ◽  
Semi Arid

scholarly journals Moving beyond classical markers of water quality: detection of enteric viruses and genotoxicity in water of the Sinos River

2015 ◽  
Vol 75 (2 suppl) ◽  
pp. 63-67 ◽  
Author(s):  
B Bergamaschi ◽  
MT Rodrigues ◽  
JVS Silva ◽  
M Kluge ◽  
RB Luz ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Viral Genomes ◽  
Quality Detection ◽  
Routine Monitoring ◽  
Microbiological Parameters ◽  
Preliminary Study ◽  
Surrounding Areas ◽  
Waterborne Viruses ◽  
Different Levels

<p>It is well recognized that the classical biological and chemical markers of environmental pollution do not necessarily indicate the presence or absence of emerging threats to public health, such as waterborne viruses and genotoxicants. The purpose of this preliminary study was to evaluate the presence of material of enteroviruses (EV), rotavirus (RV) and adenovirus (AdV) and genotoxicity in water samples from points of routine monitoring of water quality in the main course of the Sinos River. The points are classified into different levels of pollution in accordance to the Brazilian federal regulations. Viral genomes from EV, AdV were detected in two of the 4 collection points regardless of the level of urbanisation of the surrounding areas. In contrast, genotoxicity was not observed in piava (<italic>Leporinus obtusidens</italic>) fingerlings cultivated on these same water samples. Results were compared with classical physical, chemical and microbiological parameters. There was no clear evidence of association between any of the classical markers and the presence of viral genomes in the water samples tested.</p>

scholarly journals Classification methods for detecting and evaluating changes in desertification-related features in arid and semiarid environments

2017 ◽  
Vol 2 (1) ◽  
Author(s):  
Gabriela-Mihaela Afrasinei ◽  
Maria Teresa Melis ◽  
Cristina Buttau ◽  
Claudio Arras ◽  
Marco Pistis ◽  
...  
Keyword(s):  
Classification Methods ◽  
Semiarid Environments ◽  
Arid And Semiarid

Ibotyporanga Mello-Leitão: tropical spiders in Brazilian semi-arid habitats (Araneae: Pholcidae)

2003 ◽  
Vol 34 (1) ◽  
pp. 15-20 ◽  
Author(s):  
Antonio Brescovit ◽  
Bernhard Huber
Keyword(s):  
New Species ◽  
Body Size ◽  
Vegetation Type ◽  
Northeastern Region ◽  
Semiarid Areas ◽  
Arid And Semiarid Areas ◽  
Cladistic Analyses ◽  
Three New Species ◽  
Semi Arid ◽  
Arid And Semiarid

AbstractThree new species of the previously monotypic ninetine genus Ibotyporanga Mello-Leitão, 1944 are described: I. emekori sp. n., I. diroa sp. n., and I. ramosae sp. n., all from the Brazilian state Bahia. All were collected in 'caatinga', a vegetation type that covers most of the area with semiarid climate in the northeastern region of Brazil. It is argued that two alternative explanations might account for the apparently almost universal restriction of ninetines to relatively inhospitable areas: they might be a relict group (possibly monophyletic), displaced from more favorable areas by more modern pholcids; or they might be a polyphyletic assemblage of lineages that independently evolved the ability to thrive in arid and semiarid areas by reducing their body size and appendage length to fit into spaces with tolerable microclimate. Preliminary cladistic analyses based on morphology alone have not been able to settle this question.

Sensitivity of riparian ecosystems in arid and semiarid environments to moisture pulses

2006 ◽  
Vol 20 (15) ◽  
pp. 3191-3205 ◽  
Author(s):  
D. G. Williams ◽  
R. L. Scott ◽  
T. E. Huxman ◽  
D. C. Goodrich ◽  
G. Lin
Keyword(s):  
Riparian Ecosystems ◽  
Semiarid Environments ◽  
Arid And Semiarid
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