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Gamper Lev Evgenevich - One of the best experts on this subject based on the ideXlab platform.

  • method of passive determination of coordinate of sources of sonar radiation
    2019
    Co-Authors: Gamper Lev Evgenevich, Popova Olga Stepanovna
    Abstract:

    FIELD: hydro acoustics.SUBSTANCE: invention relates to the field of hydroacoustics and can be used in passive sonar, as well as in atmospheric acoustics and passive radar. Method for the passive determination of the coordinates of hydroacoustic radiation sources is proposed, which contains the reception of the signals M≥3 with antennas, pre-processing of the received signals, including synchronous sampling, digital transformation and Fourier transformation (FT), indication in the coordinate grid (CG) "direction-range", calculation for each pq-th cell of CG of pairwise differences of propagation times of the signal. In accordance with the proposed method, fans of directed channels (DC) are formed on each of the M antennas and for each direction αat each frequency ƒof FT arrays define a triangular tablefrom (M-M)/2 values of the pairwise SPS estimation of the output signals X=[x] of each m-th antenna with the output signals of each n-th antenna with a temporary accumulation of estimates of the SPS. Obtained triangular tableis transformed into the matrix G(ƒ) = [g(ƒ)] of dimension M×M and the transformation of the inversion is applied. After that, the elements of the inverse matrix [b(ƒ)] are summed by m, n in [p, q]-th CG nodes with multiplication by the time delay compensation factor exp(-jƒτ(α, D)), are summed by frequency ƒwithin the frequency range of reception ƒ, ƒwith a given frequency response h(ƒ) and are indicated in the coordinate grid "direction-range" (α/D), and the coordinates of the radiation sources are determined from the position of the maximums of the indicator values on the coordinate scales of the CG.EFFECT: proposed method allows to reduce the distortion and increase the accuracy of determining the coordinates and resolution in the direction and range of several radiation sources in a given observation sector (α, α) on the indicator screen, as well as reduce the distortion of their signal marks on the indicator.1 cl, 8 dwg

Popova Olga Stepanovna - One of the best experts on this subject based on the ideXlab platform.

  • method of passive determination of coordinate of sources of sonar radiation
    2019
    Co-Authors: Gamper Lev Evgenevich, Popova Olga Stepanovna
    Abstract:

    FIELD: hydro acoustics.SUBSTANCE: invention relates to the field of hydroacoustics and can be used in passive sonar, as well as in atmospheric acoustics and passive radar. Method for the passive determination of the coordinates of hydroacoustic radiation sources is proposed, which contains the reception of the signals M≥3 with antennas, pre-processing of the received signals, including synchronous sampling, digital transformation and Fourier transformation (FT), indication in the coordinate grid (CG) "direction-range", calculation for each pq-th cell of CG of pairwise differences of propagation times of the signal. In accordance with the proposed method, fans of directed channels (DC) are formed on each of the M antennas and for each direction αat each frequency ƒof FT arrays define a triangular tablefrom (M-M)/2 values of the pairwise SPS estimation of the output signals X=[x] of each m-th antenna with the output signals of each n-th antenna with a temporary accumulation of estimates of the SPS. Obtained triangular tableis transformed into the matrix G(ƒ) = [g(ƒ)] of dimension M×M and the transformation of the inversion is applied. After that, the elements of the inverse matrix [b(ƒ)] are summed by m, n in [p, q]-th CG nodes with multiplication by the time delay compensation factor exp(-jƒτ(α, D)), are summed by frequency ƒwithin the frequency range of reception ƒ, ƒwith a given frequency response h(ƒ) and are indicated in the coordinate grid "direction-range" (α/D), and the coordinates of the radiation sources are determined from the position of the maximums of the indicator values on the coordinate scales of the CG.EFFECT: proposed method allows to reduce the distortion and increase the accuracy of determining the coordinates and resolution in the direction and range of several radiation sources in a given observation sector (α, α) on the indicator screen, as well as reduce the distortion of their signal marks on the indicator.1 cl, 8 dwg

Vieira C.a. - One of the best experts on this subject based on the ideXlab platform.

  • Body Length Of Hylodes Cf. Ornatus And Lithobates Catesbeianus Tadpoles, Depigmentation Of Mouthparts, And Presence Of Batrachochytrium Dendrobatidis Are Related [tamanho Do Corpo, Despigmentação Das Partes Bucais E Presença De Batrachochytrium Dendr
    2015
    Co-Authors: Vieira C.a., Toledo L.f., Longcore J.e.
    Abstract:

    A fungal pathogen Batrachochytrium dendrobatidis (Bd), which can cause morbidity and death of anurans, has affected amphibian populations on a worldwide basis. Availability of pure cultures of Bd isolates is essential for experimental studies to understand the ecology of this pathogen. We evaluated the relationships of body length of Hylodes cf. ornatus and Lithobates catesbeianus tadpoles to depigmentation of mouthparts and determined if dekeratinization indicated an infection by Batrachochytrium dendrobatidis. A strong association existed for both species, one from South America (Brazil: São Paulo) and one from North America (USA: Maine). We believe it prudent not to kill adult amphibians if avoidable, thus obtaining tissue for isolating Bd from tadpoles is reasonable because infected specimens of some species can be selectively collected based on depigmentation of mouthparts.731195199Albright, J., Bullfrog Rana catesbeiana (1999) Maine Amphibians and Reptiles., , In HUNTER JUNIOR, ML., CALHOUN, AJK. and McCOLLOUGH, M. (Eds.). Orono: The University of Maine PressAltig, R., Johnston, G.F., Major characteristics of free-living anuran tadpoles (1986) Smithsonian Herpetological Information Service, 67, pp. 1-75Altig, R., McDiarmid, R.W., Nichols, K.A., Ustach, P.C., (1998) Tadpoles of the United States and Canada: A tutorial and Key., , http://www.pwrc.usga.gov/TADPOLE/, Available from: Access in: 27 Dec. 2010Barnosky, A.D., Matzke, N., Tomiya, S., Wogan, G.O.U., Swartz, B., Quental, T.B., Marshall, C., Ferrer, E.A., Has the Earth's sixth mass extinction already arrived? (2011) Nature, 471, pp. 52-57Berger, L., Speare, R., Daszak, P., Green, D.E., Cunningham, A.A., Goggin, C.L., Slocombe, R., Parkes, H., Chytridiomycosis causes amphibian mortality associated with population declines in the rain forests of Australia and Central America (1998) Proceedings of the National Academy of Science, 95, pp. 9031-9036. , PMid:9671799 PMCid:21197Berger, L., Marantelli, G., Skerratt, L.F., Speare, R., Virulence of the amphibian chytrid fungus Batrachochytrium dendrobatidis varies with the strain (2005) Diseases of Aquatic Organisms, 68, pp. 47-50. , http://dx.doi.org/10.3354/dao068047, PMid:16465833Catenazzi, A., von May, R., Vredenburg, V.T., High prevalence of infection in tadpoles increases vulnerability to fungal pathogen in high-Andean amphibians (2013) Biological Conservation, 159, pp. 413-421. , http://dx.doi.org/10.1016/j.biocon.2012.11.023Daszak, P., Berger, L., Cunningham, A.A., Hyatt, A.D., Green, D.E., Speare, R., Emerging infectious diseases and amphibian population declines (1999) Emergent Infectious Diseases, 5, pp. 735-748. , http://dx.doi.org/10.3201/eid0506.990601, PMid:10603206 PMCid:2640803Daszak, P., Strieby, A., Cunningham, A.A., Longcore, J.E., Brown, C.C., Porter, D., Experimental evidence that the bullfrog (Rana catesbiana) is a potential carrier of chytridomycosis, an emerging fungal disease of amphibians (2004) Herpetological Journal, 14, pp. 201-207Drake, D.L., Altig, R., Grace, J.G., Walls, S.C., Occurrence of oral deformities in larval anurans (2007) Copeia, 2, pp. 449-458Fellers, G.M., Green, D.E., Longcore, J.E., Oral chytridiomycosis in the Mountain Yellow-Legged Frog (Rana muscosa) (2001) Copeia, pp. 945-953Gosner, K.L., A simplified tablefor staging anuran embryos and larvae with notes on identification (1960) Herpetologica, 16, pp. 183-190Knapp, R.A., Morgan, J.A.T., Tadpole mouthpart depigmentation as an accurate indicator of chytridiomycosis, an emerging disease of amphibians (2006) Copeia, pp. 188-197Kuang, H.-L.C., Development of beaks of Rana pipiens larvae (1975) Anatomical Record, 182, pp. 401-414. , http://dx.doi.org/10.1002/ar.1091820402, PMid:1080023Lamirande, E.W., Nichols, D.K., Effects of host age on susceptibility to cutaneous chytridiomycosis in blue-and-yellow poison dart frogs (Dendrobates tinctorius) (2002) Proceedings6th International Symposium on the Pathology of Reptiles and Amphibians, , In McKINNELL, RG. and CARLSON, DL. (Eds.). St. Paul: University of Minnesota Printing ServicesLips, K.R., Mass mortality and population declines of anurans at an upland site in western Panama (1999) Conservation Biology, 13, pp. 117-125. , http://dx.doi.org/10.1046/j.1523-1739.1999.97185.xLips, K.R., Green, D.E., Papendick, R., Chytridiomycosis in wild frogs from southern Costa Rica (2003) Journal of Herpetology, 37, pp. 215-218. , http://dx.doi.org/10.1670/0022-1511(2003)037[0215:CIWFFS]2.0.CO;2Lips, K.R., Mendelson III, J.R., Muñoz-Alonso, A., Canseco-Márquez, L., Mulcahy, D., Amphibian population declines in montane southern Mexico: Resurveys of historical localities (2004) Biological Conservation, 119, pp. 555-564. , http://dx.doi.org/10.1016/j.biocon.2004.01.017Lips, K.R., Brem, F., Brenes, R., Reeve, J.D., Alford, R.A., Voyles, J., Carey, C., Collins, J.P., Emerging infectious disease and the loss of biodiversity in a Neotropical amphibian community (2006) Proceedings of National Academy of Science, 103, pp. 3165-3170. , http://dx.doi.org/10.1073/pnas.0506889103, PMid:16481617 PMCid:1413869Longcore, J., Berger, L., (2000) Workshop on culturing chytrids: Recognizing, isolating, and culturaling Batrachochytrium dendrobatidis, , from amphibians. Cains: James Cook University. Proceedings: Getting Jump on the Amphibian Disease, Cains, Australia (26-29 August 2000)Longcore, J.E., Pessier, A.P., Nichols, D.K., Batrachochytrium dendrobatidis gen. etsp. nov., a chytrid pathogenic to amphibians (1999) Mycologia, 91, pp. 219-227. , http://dx.doi.org/10.2307/3761366Longcore, J.R., Longcore, J.E., Pessier, A.P., Halteman, W.A., Chytridiomycosis widespread in anurans of Northeastern United States (2007) Journal of Wildlife Management, 71, pp. 435-444. , http://dx.doi.org/10.2193/2006-345Luckenbill, L.M., Morphogenesis of the horny jaws of Rana pipiens larvae (1965) Developmental Biology, 11, pp. 25-49. , http://dx.doi.org/10.1016/0012-1606(65)90036-9Marantelli, G., Berger, L., Speare, R., Keegan, L., Distribution of amphibian chytrid Batrachochytrium dendrobatidis and keratin during tadpole development (2004) Pacific Conservation Biology, 10, pp. 173-179McDiarmid, R.W., Altig, R., (1999) Tadpoles: The Biology of Anuran Larvae, , Chicago: University of Chicago PressPadgett-Flohr, G.E., Goble, M.E., Evaluation of tadpole mouthpart depigmentation as a diagnostic test for infection by Batrachochytrium dendrobatidis for four California anurans (2007) Journal of Wildlife Diseases, 43, pp. 690-699. , PMid:17984265Pessier, A.P., Nichols, D.K., Longcore, J.E., Fuller, M.S., Cutaneous chytridiomycosis in poison dart frogs (Dendrobates spp.) and White's tree frogs (Litoria caerulea) (1999) Journal of Veterinary Diagnostic Investigation, 11, pp. 194-199. , http://dx.doi.org/10.1177/104063879901100219, PMid:10098698Rachowicz, L.J., Mouthpart pigmentation in Rana muscosa tadpoles: Seasonal changes without chytridiomycosis (2002) Herpetological Review, 33, pp. 263-265Rachowicz, L.J., Vredenburg, V.T., Transmission of Batrachochytrium dendrobatidis within and between amphibian life stages (2004) Diseases of Aquatic Organisms, 61, pp. 75-83. , http://dx.doi.org/10.3354/dao061075, PMid:15584413Rowe, C.L., Kinney, O.M., Fiori, A.P., Congdon, J.D., Oral deformities in tadpoles (Rana catesbeiana) associated with coal ash deposition: Effects on grazing ability and Growth (1996) Freshwater Biology, 36, pp. 723-730. , http://dx.doi.org/10.1046/j.1365-2427.1996.00123.xSmith, K.G., Weldon, C., Conradie, W., du Preez, L.H., Relationships among size, development, and Batrachochytrium dendrobatidis infection in African tadpoles (2007) Diseases of Aquatic Organisms, 74, pp. 159-164. , http://dx.doi.org/10.3354/dao074159, PMid:17432045Stuart, S.N., Chanson, J.S., Cox, N.A., Young, B.E., Rodrigues, A.S.L., Fishman, D.L., Waller, R.W., Status and trends of amphibian declines and extinctions worldwide (2004) Science, 306, pp. 1783-1786. , http://dx.doi.org/10.1126/science.1103538, PMid:15486254Thibaudeau, D.G., Altig, R., Sequence of ontogenetic development and atrophy of the oral apparatus of six anuran tadpoles (1988) Journal of Morphology, 197, pp. 63-69. , http://dx.doi.org/10.1002/jmor.1051970106Toledo, L.F., Brito, F.B., Araújo, O.G.S., Giasson, L.O.M., Haddad, C.F.B., The occurrence of Batrachochytrium dendrobatidis in Brazil and the inclusion of17 new cases of infection (2006) South American Journal of Herpetology, 1, pp. 185-191. , http://dx.doi.org/10.2994/1808-9798(2006)1[185:TOOBDI]2.0.CO;2Toledo, L.F., Haddad, C.F.B., Carnaval, A.O.Q.C., Britto, F.B., A Brazilian anuran (Hylodes magalhaesi: Leptodactylidae) infected by Batrachochytrium dendrobatidis: A conservation concern (2006) Amphibian and Reptile Conservation, 4, pp. 17-21Voyles, J., Richards-Hrdlicka, K., Cashins, S.D., Rosenblum, E.B., Hyatt, A.D., Berger, L., Skerratt, L.F., Batrachochytrium dendrobatidis: Requirement for further isolate collection and archiving (2010) Diseases of Aquatic Organisms, 92 (2-3), pp. 109-1120. , http://dx.doi.org/10.3354/dao02216, PMid:21268972Voyles, J., Cashins, S.D., Rosenblum, E.B., Puschendorf, R., Preserving pathogens for wildlife conservation: A case for action on amphibian declines (2009) Oryx, 43, pp. 527-529. , http://dx.doi.org/10.1017/S003060530999046

Toledo L.f. - One of the best experts on this subject based on the ideXlab platform.

  • Body Length Of Hylodes Cf. Ornatus And Lithobates Catesbeianus Tadpoles, Depigmentation Of Mouthparts, And Presence Of Batrachochytrium Dendrobatidis Are Related [tamanho Do Corpo, Despigmentação Das Partes Bucais E Presença De Batrachochytrium Dendr
    2015
    Co-Authors: Vieira C.a., Toledo L.f., Longcore J.e.
    Abstract:

    A fungal pathogen Batrachochytrium dendrobatidis (Bd), which can cause morbidity and death of anurans, has affected amphibian populations on a worldwide basis. Availability of pure cultures of Bd isolates is essential for experimental studies to understand the ecology of this pathogen. We evaluated the relationships of body length of Hylodes cf. ornatus and Lithobates catesbeianus tadpoles to depigmentation of mouthparts and determined if dekeratinization indicated an infection by Batrachochytrium dendrobatidis. A strong association existed for both species, one from South America (Brazil: São Paulo) and one from North America (USA: Maine). We believe it prudent not to kill adult amphibians if avoidable, thus obtaining tissue for isolating Bd from tadpoles is reasonable because infected specimens of some species can be selectively collected based on depigmentation of mouthparts.731195199Albright, J., Bullfrog Rana catesbeiana (1999) Maine Amphibians and Reptiles., , In HUNTER JUNIOR, ML., CALHOUN, AJK. and McCOLLOUGH, M. (Eds.). Orono: The University of Maine PressAltig, R., Johnston, G.F., Major characteristics of free-living anuran tadpoles (1986) Smithsonian Herpetological Information Service, 67, pp. 1-75Altig, R., McDiarmid, R.W., Nichols, K.A., Ustach, P.C., (1998) Tadpoles of the United States and Canada: A tutorial and Key., , http://www.pwrc.usga.gov/TADPOLE/, Available from: Access in: 27 Dec. 2010Barnosky, A.D., Matzke, N., Tomiya, S., Wogan, G.O.U., Swartz, B., Quental, T.B., Marshall, C., Ferrer, E.A., Has the Earth's sixth mass extinction already arrived? (2011) Nature, 471, pp. 52-57Berger, L., Speare, R., Daszak, P., Green, D.E., Cunningham, A.A., Goggin, C.L., Slocombe, R., Parkes, H., Chytridiomycosis causes amphibian mortality associated with population declines in the rain forests of Australia and Central America (1998) Proceedings of the National Academy of Science, 95, pp. 9031-9036. , PMid:9671799 PMCid:21197Berger, L., Marantelli, G., Skerratt, L.F., Speare, R., Virulence of the amphibian chytrid fungus Batrachochytrium dendrobatidis varies with the strain (2005) Diseases of Aquatic Organisms, 68, pp. 47-50. , http://dx.doi.org/10.3354/dao068047, PMid:16465833Catenazzi, A., von May, R., Vredenburg, V.T., High prevalence of infection in tadpoles increases vulnerability to fungal pathogen in high-Andean amphibians (2013) Biological Conservation, 159, pp. 413-421. , http://dx.doi.org/10.1016/j.biocon.2012.11.023Daszak, P., Berger, L., Cunningham, A.A., Hyatt, A.D., Green, D.E., Speare, R., Emerging infectious diseases and amphibian population declines (1999) Emergent Infectious Diseases, 5, pp. 735-748. , http://dx.doi.org/10.3201/eid0506.990601, PMid:10603206 PMCid:2640803Daszak, P., Strieby, A., Cunningham, A.A., Longcore, J.E., Brown, C.C., Porter, D., Experimental evidence that the bullfrog (Rana catesbiana) is a potential carrier of chytridomycosis, an emerging fungal disease of amphibians (2004) Herpetological Journal, 14, pp. 201-207Drake, D.L., Altig, R., Grace, J.G., Walls, S.C., Occurrence of oral deformities in larval anurans (2007) Copeia, 2, pp. 449-458Fellers, G.M., Green, D.E., Longcore, J.E., Oral chytridiomycosis in the Mountain Yellow-Legged Frog (Rana muscosa) (2001) Copeia, pp. 945-953Gosner, K.L., A simplified tablefor staging anuran embryos and larvae with notes on identification (1960) Herpetologica, 16, pp. 183-190Knapp, R.A., Morgan, J.A.T., Tadpole mouthpart depigmentation as an accurate indicator of chytridiomycosis, an emerging disease of amphibians (2006) Copeia, pp. 188-197Kuang, H.-L.C., Development of beaks of Rana pipiens larvae (1975) Anatomical Record, 182, pp. 401-414. , http://dx.doi.org/10.1002/ar.1091820402, PMid:1080023Lamirande, E.W., Nichols, D.K., Effects of host age on susceptibility to cutaneous chytridiomycosis in blue-and-yellow poison dart frogs (Dendrobates tinctorius) (2002) Proceedings6th International Symposium on the Pathology of Reptiles and Amphibians, , In McKINNELL, RG. and CARLSON, DL. (Eds.). St. Paul: University of Minnesota Printing ServicesLips, K.R., Mass mortality and population declines of anurans at an upland site in western Panama (1999) Conservation Biology, 13, pp. 117-125. , http://dx.doi.org/10.1046/j.1523-1739.1999.97185.xLips, K.R., Green, D.E., Papendick, R., Chytridiomycosis in wild frogs from southern Costa Rica (2003) Journal of Herpetology, 37, pp. 215-218. , http://dx.doi.org/10.1670/0022-1511(2003)037[0215:CIWFFS]2.0.CO;2Lips, K.R., Mendelson III, J.R., Muñoz-Alonso, A., Canseco-Márquez, L., Mulcahy, D., Amphibian population declines in montane southern Mexico: Resurveys of historical localities (2004) Biological Conservation, 119, pp. 555-564. , http://dx.doi.org/10.1016/j.biocon.2004.01.017Lips, K.R., Brem, F., Brenes, R., Reeve, J.D., Alford, R.A., Voyles, J., Carey, C., Collins, J.P., Emerging infectious disease and the loss of biodiversity in a Neotropical amphibian community (2006) Proceedings of National Academy of Science, 103, pp. 3165-3170. , http://dx.doi.org/10.1073/pnas.0506889103, PMid:16481617 PMCid:1413869Longcore, J., Berger, L., (2000) Workshop on culturing chytrids: Recognizing, isolating, and culturaling Batrachochytrium dendrobatidis, , from amphibians. Cains: James Cook University. Proceedings: Getting Jump on the Amphibian Disease, Cains, Australia (26-29 August 2000)Longcore, J.E., Pessier, A.P., Nichols, D.K., Batrachochytrium dendrobatidis gen. etsp. nov., a chytrid pathogenic to amphibians (1999) Mycologia, 91, pp. 219-227. , http://dx.doi.org/10.2307/3761366Longcore, J.R., Longcore, J.E., Pessier, A.P., Halteman, W.A., Chytridiomycosis widespread in anurans of Northeastern United States (2007) Journal of Wildlife Management, 71, pp. 435-444. , http://dx.doi.org/10.2193/2006-345Luckenbill, L.M., Morphogenesis of the horny jaws of Rana pipiens larvae (1965) Developmental Biology, 11, pp. 25-49. , http://dx.doi.org/10.1016/0012-1606(65)90036-9Marantelli, G., Berger, L., Speare, R., Keegan, L., Distribution of amphibian chytrid Batrachochytrium dendrobatidis and keratin during tadpole development (2004) Pacific Conservation Biology, 10, pp. 173-179McDiarmid, R.W., Altig, R., (1999) Tadpoles: The Biology of Anuran Larvae, , Chicago: University of Chicago PressPadgett-Flohr, G.E., Goble, M.E., Evaluation of tadpole mouthpart depigmentation as a diagnostic test for infection by Batrachochytrium dendrobatidis for four California anurans (2007) Journal of Wildlife Diseases, 43, pp. 690-699. , PMid:17984265Pessier, A.P., Nichols, D.K., Longcore, J.E., Fuller, M.S., Cutaneous chytridiomycosis in poison dart frogs (Dendrobates spp.) and White's tree frogs (Litoria caerulea) (1999) Journal of Veterinary Diagnostic Investigation, 11, pp. 194-199. , http://dx.doi.org/10.1177/104063879901100219, PMid:10098698Rachowicz, L.J., Mouthpart pigmentation in Rana muscosa tadpoles: Seasonal changes without chytridiomycosis (2002) Herpetological Review, 33, pp. 263-265Rachowicz, L.J., Vredenburg, V.T., Transmission of Batrachochytrium dendrobatidis within and between amphibian life stages (2004) Diseases of Aquatic Organisms, 61, pp. 75-83. , http://dx.doi.org/10.3354/dao061075, PMid:15584413Rowe, C.L., Kinney, O.M., Fiori, A.P., Congdon, J.D., Oral deformities in tadpoles (Rana catesbeiana) associated with coal ash deposition: Effects on grazing ability and Growth (1996) Freshwater Biology, 36, pp. 723-730. , http://dx.doi.org/10.1046/j.1365-2427.1996.00123.xSmith, K.G., Weldon, C., Conradie, W., du Preez, L.H., Relationships among size, development, and Batrachochytrium dendrobatidis infection in African tadpoles (2007) Diseases of Aquatic Organisms, 74, pp. 159-164. , http://dx.doi.org/10.3354/dao074159, PMid:17432045Stuart, S.N., Chanson, J.S., Cox, N.A., Young, B.E., Rodrigues, A.S.L., Fishman, D.L., Waller, R.W., Status and trends of amphibian declines and extinctions worldwide (2004) Science, 306, pp. 1783-1786. , http://dx.doi.org/10.1126/science.1103538, PMid:15486254Thibaudeau, D.G., Altig, R., Sequence of ontogenetic development and atrophy of the oral apparatus of six anuran tadpoles (1988) Journal of Morphology, 197, pp. 63-69. , http://dx.doi.org/10.1002/jmor.1051970106Toledo, L.F., Brito, F.B., Araújo, O.G.S., Giasson, L.O.M., Haddad, C.F.B., The occurrence of Batrachochytrium dendrobatidis in Brazil and the inclusion of17 new cases of infection (2006) South American Journal of Herpetology, 1, pp. 185-191. , http://dx.doi.org/10.2994/1808-9798(2006)1[185:TOOBDI]2.0.CO;2Toledo, L.F., Haddad, C.F.B., Carnaval, A.O.Q.C., Britto, F.B., A Brazilian anuran (Hylodes magalhaesi: Leptodactylidae) infected by Batrachochytrium dendrobatidis: A conservation concern (2006) Amphibian and Reptile Conservation, 4, pp. 17-21Voyles, J., Richards-Hrdlicka, K., Cashins, S.D., Rosenblum, E.B., Hyatt, A.D., Berger, L., Skerratt, L.F., Batrachochytrium dendrobatidis: Requirement for further isolate collection and archiving (2010) Diseases of Aquatic Organisms, 92 (2-3), pp. 109-1120. , http://dx.doi.org/10.3354/dao02216, PMid:21268972Voyles, J., Cashins, S.D., Rosenblum, E.B., Puschendorf, R., Preserving pathogens for wildlife conservation: A case for action on amphibian declines (2009) Oryx, 43, pp. 527-529. , http://dx.doi.org/10.1017/S003060530999046

Longcore J.e. - One of the best experts on this subject based on the ideXlab platform.

  • Body Length Of Hylodes Cf. Ornatus And Lithobates Catesbeianus Tadpoles, Depigmentation Of Mouthparts, And Presence Of Batrachochytrium Dendrobatidis Are Related [tamanho Do Corpo, Despigmentação Das Partes Bucais E Presença De Batrachochytrium Dendr
    2015
    Co-Authors: Vieira C.a., Toledo L.f., Longcore J.e.
    Abstract:

    A fungal pathogen Batrachochytrium dendrobatidis (Bd), which can cause morbidity and death of anurans, has affected amphibian populations on a worldwide basis. Availability of pure cultures of Bd isolates is essential for experimental studies to understand the ecology of this pathogen. We evaluated the relationships of body length of Hylodes cf. ornatus and Lithobates catesbeianus tadpoles to depigmentation of mouthparts and determined if dekeratinization indicated an infection by Batrachochytrium dendrobatidis. A strong association existed for both species, one from South America (Brazil: São Paulo) and one from North America (USA: Maine). 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