INVESTIGADORES
HAMANN monika Ines
artículos
Título:
Relaciones ecológicas entre metacercarias de Lophosicyadiplostomum sp. (Trematoda, Diplostomidae) y Lysapsus limellus Cope, 1862 (Anura, Pseudidae) en una población local del nordeste argentino.
Autor/es:
HAMANN M. I.; KEHR A. I.
Revista:
FACENA
Editorial:
FACULTAD DE CIENCIAS EXACTAS Y NATURALES Y AGRIMENSURA, UNIVERSIDAD NACIONAL DEL NORDESTE
Referencias:
Lugar: Argentina; Año: 1999 vol. 15 p. 39 - 46
ISSN:
0325-4216
Resumen:
<!-- /* Font Definitions */ @font-face {font-family:"Cambria Math"; panose-1:2 4 5 3 5 4 6 3 2 4; mso-font-charset:1; mso-generic-font-family:roman; mso-font-format:other; mso-font-pitch:variable; mso-font-signature:0 0 0 0 0 0;} @font-face {font-family:Calibri; panose-1:2 15 5 2 2 2 4 3 2 4; mso-font-charset:0; mso-generic-font-family:swiss; mso-font-pitch:variable; mso-font-signature:-1610611985 1073750139 0 0 159 0;} /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:""; margin-top:0cm; margin-right:0cm; margin-bottom:10.0pt; margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-fareast-language:EN-US;} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:Calibri; mso-fareast-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi; mso-fareast-language:EN-US;} .MsoPapDefault {mso-style-type:export-only; margin-bottom:10.0pt; line-height:115%;} @page Section1 {size:612.0pt 792.0pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:35.4pt; mso-footer-margin:35.4pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> The populational dynamics of a diplostomid metacercariae (Lophosicyadiplostomum sp.) was studied in its intermediate host Lysapsus limellus (Pseudidae, Anura) in a subtropical semipermanent pond from northeastern Argentina since March 1994 until September 1995. Metacercaria was found in kidney of host. The frog?s numbers was very low during winter, spring and summer, but were more abundant during autumn. The frog?s population dynamics was governed predominantly by the level of the ponds. The interaction between frog and the diplostomid metacercariae shows a seasonal pattern during the study. Overall prevalence was approximately 28%, abundance was 4,7 and mean intensity of infection was 16,6 (range = 1 -65 trematodes per frog). The prevalence, mean intensity and variance-to-mean relation of infection were positively correlated to frog abundance. In addition, these variables did not increase with body length of the host. Frog females showed greater parasite prevalence than males. This was probably caused by different time in arriving to ?focus? of infection of cercariae.
