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Vijayanandh Raja, Ramesh Murugesan, Parvathy Rajendran, Surya Palaniappan, Hussein A. Z. AL-bonsrulah, Darshan Kumar Jayaram and Mohammed Al-Bahrani
The conceptual design, component selection, and deployment experiments of an unmanned amphibious system (US) with a unique Becker in vertical stabilizer based on hydrodynamic research are included in this work. The use of USs is currently expanding signi...
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Marcin Blachnik, Marek Soltysiak and Dominika Dabrowska
The construction of transport infrastructure is often preceded by an environmental impact assessment procedure, which should identify amphibian breeding sites and migration routes. However, the assessment is very difficult to conduct because of the large...
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Elke Wind,Bill Beese
The effect of timber harvesting on small wetland habitats and associated amphibians has not been studied in the Pacific Northwest. In 2004, we initiated a study of three forested sites containing 70+ small wetlands in the Nanaimo Lakes area on Vancouver ...
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Gregory Churko, Felix Kienast and Janine Bolliger
Preserving functional connectivity is a key goal of conservation management. However, the spatially confined conservation areas may not allow for dispersal and gene flow for the intended long-term persistence of populations in fragmented landscapes. We p...
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Diana Sousa Guedes, Hélder Ribeiro and Neftalí Sillero
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S. De Silva,N. Wijayathilaka
Acoustic inventory of Sri Lankan amphibians is still in a primitive stage. So far, only 20 amphibian species are known acoustically and are about 16% of the island amphibian fauna. Altogether, twelve publications provide primary acoustic characters, yet ...
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Diana Sousa-Guedes, Marc Franch and Neftalí Sillero
Road networks are the main source of mortality for many species. Amphibians, which are in global decline, are the most road-killed fauna group, due to their activity patterns and preferred habitats. Many different methodologies have been applied in model...
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Rachel A. Grant, Tim Halliday, Werner P. Balderer, Fanny Leuenberger, Michelle Newcomer, Gary Cyr and Friedemann T. Freund
Prior to major earthquakes many changes in the environment have been documented. Though often subtle and fleeting, these changes are noticeable at the land surface, in water, in the air, and in the ionosphere. Key to understanding these diverse pre-earth...
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José A. Coppo, Santiago A. Fioranelli, Pedro A. Zein, Norma B. Mussart
Pág. 73 - 80
The purpose of this study was to determine plasmatic non protein nitrogen (NPN) reference values according to sex, age, liveweight, season, and breeding and feeding systems physiological modifications in bullfrog, Rana catesbeiana.Three hundred and two h...
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Ian MacGregor-Fors, Federico Escobar, Rafael Rueda-Hernández, Sergio Avendaño-Reyes, Martha Lucía Baena, Víctor M. Bandala, Santiago Chacón-Zapata, Antonio Guillén-Servent, Fernando González-García, Francisco Lorea-Hernández, Enrique Montes de Oca, Leticia Montoya, Eduardo Pineda, Lorena Ramírez-Restrepo, Eduardo Rivera-García and Elsa Utrera-Barrillas
Urbanization poses important environmental, social, and ecological pressures, representing a major threat to biodiversity. However, urban areas are highly heterogeneous, with some greenspaces (e.g., urban forests, parks, private gardens) providing resour...
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Marija Kovacevic, Nikolina Stjepanovic, Luca Zelic and ?eljka Loncaric
Azoxystrobin (AZO) is widely used to prevent and treat fungal diseases in important crops but can also impact non-target organisms, including mammals, amphibians, aquatic, and soil organisms. Collembolans play important roles in ecosystems as decomposers...
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Zdenka Krenová, Vladimír Zýval, Vladimír Zýval Jr., Zdenka Chocholou?ková
Pág. 109 - 116
The negative effects of applying deicing salts to ecosystems are well documented for many countries. Most chemical transport from roads occurs in stormwater runoff through or over soil. Runoff pollutants alter soil chemistry, may be absorbed by plants an...
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Jessica S. Veysey Powell and Kimberly J. Babbitt
Natural resource extraction and wildlife conservation are often perceived as incompatible. For wetland-dependent amphibians, forested buffers may mitigate timber-harvest impacts, but little empirical research has focused on buffers around lentic habitats...
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M. G. D. K. Bandara,M.R. Wijesinghe,W. D. Ratnasooriya,A. A. H. Priyani
This paper reports the histopathological responses of the gill, liver and tail muscle tissues in tadpoles of the Asian Common Toad Duttaphrynus melanostictus (Schneider, 1799) exposed to chlorpyrifos a common organophosphorus pesticide. Tadpoles of Gosne...
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Hannah L Horn
The Nature Conservancy of Canada used an expert-driven approach to incorporate multiple animal species into an ecoregional assessment for the purpose of conservation planning in the Central Interior of British Columbia. This method has been applied in 14...
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Carolina Ureta,Ángela P. Cuervo-Robayo,Edith Calixto-Pérez,Constantino González-Salazar,Emiliano Fuentes-Conde
Pág. 221 - 254
Mexican islands are one of the most diverse territories in the world and consequently their conservation should be a national and international priority. Three main threats to islands? diversity have been detected: invasive species, land use change and c...
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