Variación no geográfica de Microtus quasiater (Rodentia: Arvicolidae) con notas sobre su ecología y reproducción
INTRASPECIFIC VARIATION WAS STUDIED IN 206 SPECIMENS OF MICROTUS QUASIATER, AN ENDEMIC SPECIES OF MEXICO INHABITING THE MONTANE HUMID FOREST IN A REDUCED ZONE OF THE SIERRA MADRE ORIENTAL AT AN ALTITUDE FROM 7OO TO 2150M. SEXUAL DIMORPHISM WAS ABSENT IN ALL THREE AGE CLASSES; WHEREAS THESE WERE SEPARATED BY THE TOTAL LENGHT AND BY 62% OF THE SKULL AND MANDIBULAR CHARACTERS WICH INCLUDE MOST LENGTHS AND WIDTHS RELATED TO THE ENLARGEMENT OF THE ROSTRUM AND MANDIBULE AS WELL AS WITH THE EXPANTION OF THE ZIGOMATICS. INDIVIDUAL VARIATION WAS MORE EVIDENT FOR EXTERNAL CHARACTERS (CV FROM 5.55 TO 26.72) THAN FOR MANDIBULAR AND CRANEAL CHARACTERS (CV FROM 2.53 TO 8.19). M. QUASIATER AND M. MEXICANUS WAS RECORDED IN THREE LOCALITIES OF PUEBLA. REPORTED ASSOCIATED FAUNA AS WELL AS THAT FOUD IN THE FIELD WORK IS MENTIONED. DATA FROM 46 SPECIMENS FROM 14 LOCALITIES SHOW THAT MALES WITH SCROTED TESTIS AND NURSING FEMALES OCCUR ALL OVER THE YEAR; WHEREAS PREGNANT FEMALES ARE ONLY PRESENT AT FALL AND WINTER. LITTER SIZE VARIED BETWEEN ONE AND FOUR EMBRIOS WITH AN AVERAGE OF TWO.
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Anales del Instituto de Biología serie Zoología
2009
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rev-zoo-mx-article-70372023-01-23T21:13:57Z Variación no geográfica de Microtus quasiater (Rodentia: Arvicolidae) con notas sobre su ecología y reproducción RAMÍREZ PULIDO, JOSÉ MICROTUS QUASIATER NON-GEOGRAPHIC VARIATION HABITAT ASSOCIATED FAUNA REPRODUCTION MICROTUS QUASIATER VARIACION NO-GEOGRAFICA HABITAT FAUNA ASOCIADA REPRODUCCION INTRASPECIFIC VARIATION WAS STUDIED IN 206 SPECIMENS OF MICROTUS QUASIATER, AN ENDEMIC SPECIES OF MEXICO INHABITING THE MONTANE HUMID FOREST IN A REDUCED ZONE OF THE SIERRA MADRE ORIENTAL AT AN ALTITUDE FROM 7OO TO 2150M. SEXUAL DIMORPHISM WAS ABSENT IN ALL THREE AGE CLASSES; WHEREAS THESE WERE SEPARATED BY THE TOTAL LENGHT AND BY 62% OF THE SKULL AND MANDIBULAR CHARACTERS WICH INCLUDE MOST LENGTHS AND WIDTHS RELATED TO THE ENLARGEMENT OF THE ROSTRUM AND MANDIBULE AS WELL AS WITH THE EXPANTION OF THE ZIGOMATICS. INDIVIDUAL VARIATION WAS MORE EVIDENT FOR EXTERNAL CHARACTERS (CV FROM 5.55 TO 26.72) THAN FOR MANDIBULAR AND CRANEAL CHARACTERS (CV FROM 2.53 TO 8.19). M. QUASIATER AND M. MEXICANUS WAS RECORDED IN THREE LOCALITIES OF PUEBLA. REPORTED ASSOCIATED FAUNA AS WELL AS THAT FOUD IN THE FIELD WORK IS MENTIONED. DATA FROM 46 SPECIMENS FROM 14 LOCALITIES SHOW THAT MALES WITH SCROTED TESTIS AND NURSING FEMALES OCCUR ALL OVER THE YEAR; WHEREAS PREGNANT FEMALES ARE ONLY PRESENT AT FALL AND WINTER. LITTER SIZE VARIED BETWEEN ONE AND FOUR EMBRIOS WITH AN AVERAGE OF TWO. SE ESTUDIO LA VARIACIÓN INTRAESPECIFICA EN 206 EJEMPLARES DE MICROTUS QUASIATER, ESPECIE ENDÉMICA DE MÉXICO, QUE VIVE EN UNA PARTE REDUCIDA DE LA SIERRA MADRE ORIENTAL EN EL BOSQUE MESOFILO DE MONTAÑA ENTRE LOS 700 Y 2150M DE ALTURA. LA ESPECIE NO PRESENTO VARIACIÓN SEXUAL EN NINGUNA DE LAS TRES CLASES DE EDAD CONSIDERADAS. SE ENCONTRÓ QUE LA LONGITUD TOTAL Y EL 62% DE LOS CARACTERES ÓSEOS EXAMINADOS, QUE INCLUYEN LA MAYORÍA DE LAS LONGITUDES Y ANCHURAS RELACIONADAS CON EL ALARGAMIENTO DEL ROSTRO Y MANDÍBULA Y CON LA EXPANSIÓN DE LOS ARCOS CIGOMATICOS, PERMITEN DISTINGUIR LAS CLASES DE EDAD ENTRE SI. EN LA POBLACIÓN ESTUDIADA, LA VARIACIÓN INDIVIDUAL ES MAS CONSIDERABLE EN LAS MEDIDAS EXTERNAS (CV DE 5.55 A 26.72) QUE EN LOS CARACTERES OSEOS (CV DE 2.53 A 8.19). ADEMAS DEL HABITAT DESCRITO ARRIBA, SE ENCONTRÓ M. QUASIATER EN CAMPOS DE CULTIVO ABANDONADOS, HUERTOS FRUTALES, POTREROS Y MAIZALES DESARROLLADOS EN LUGAR DEL BOSQUE MESOFILO DE MONTAÑA. SE ENCONTRÓ M. QUASIATER EN SIMPATRIA CON M. MEXICANUS EN TRES LOCALIDADES DE PUEBLA. SE MENCIONA LA FAUNA ASOCIADA PUBLICADA EN LA LITERATURA Y ENCONTRADA EN EL TRABAJO DE CAMPO. EN 46 EJEMPLARES PROCEDENTES DE 14 LOCALIDADES SE OBSERVARON MACHOS CON TESTÍCULOS ESCROTADOS Y HEMBRAS LACTANTES DURANTE TODAS LAS ESTACIONES DEL AÑO, MIENTRAS QUE SOLO SE ENCONTRARON HEMBRAS PREÑADAS DURANTE EL OTOÑO Y EL INVIERNO. EL TAMAÑO DE LA CAMADA VARIO DE UNO A CUATRO EMBRIONES CON UN PROMEDIO DE DOS. Anales del Instituto de Biología serie Zoología 2009-10-05 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.revistas.unam.mx/index.php/zoo/article/view/7037 Anales del Instituto de Biología serie Zoología; Vol. 62 Núm. 002 (1991) 0368-8720 spa https://www.revistas.unam.mx/index.php/zoo/article/view/7037/6545 |
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| databasecode |
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| language |
spa |
| format |
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| author |
RAMÍREZ PULIDO, JOSÉ |
| spellingShingle |
RAMÍREZ PULIDO, JOSÉ Variación no geográfica de Microtus quasiater (Rodentia: Arvicolidae) con notas sobre su ecología y reproducción |
| author_facet |
RAMÍREZ PULIDO, JOSÉ |
| author_sort |
RAMÍREZ PULIDO, JOSÉ |
| title |
Variación no geográfica de Microtus quasiater (Rodentia: Arvicolidae) con notas sobre su ecología y reproducción |
| title_short |
Variación no geográfica de Microtus quasiater (Rodentia: Arvicolidae) con notas sobre su ecología y reproducción |
| title_full |
Variación no geográfica de Microtus quasiater (Rodentia: Arvicolidae) con notas sobre su ecología y reproducción |
| title_fullStr |
Variación no geográfica de Microtus quasiater (Rodentia: Arvicolidae) con notas sobre su ecología y reproducción |
| title_full_unstemmed |
Variación no geográfica de Microtus quasiater (Rodentia: Arvicolidae) con notas sobre su ecología y reproducción |
| title_sort |
variación no geográfica de microtus quasiater (rodentia: arvicolidae) con notas sobre su ecología y reproducción |
| description |
INTRASPECIFIC VARIATION WAS STUDIED IN 206 SPECIMENS OF MICROTUS QUASIATER, AN ENDEMIC SPECIES OF MEXICO INHABITING THE MONTANE HUMID FOREST IN A REDUCED ZONE OF THE SIERRA MADRE ORIENTAL AT AN ALTITUDE FROM 7OO TO 2150M. SEXUAL DIMORPHISM WAS ABSENT IN ALL THREE AGE CLASSES; WHEREAS THESE WERE SEPARATED BY THE TOTAL LENGHT AND BY 62% OF THE SKULL AND MANDIBULAR CHARACTERS WICH INCLUDE MOST LENGTHS AND WIDTHS RELATED TO THE ENLARGEMENT OF THE ROSTRUM AND MANDIBULE AS WELL AS WITH THE EXPANTION OF THE ZIGOMATICS. INDIVIDUAL VARIATION WAS MORE EVIDENT FOR EXTERNAL CHARACTERS (CV FROM 5.55 TO 26.72) THAN FOR MANDIBULAR AND CRANEAL CHARACTERS (CV FROM 2.53 TO 8.19). M. QUASIATER AND M. MEXICANUS WAS RECORDED IN THREE LOCALITIES OF PUEBLA. REPORTED ASSOCIATED FAUNA AS WELL AS THAT FOUD IN THE FIELD WORK IS MENTIONED. DATA FROM 46 SPECIMENS FROM 14 LOCALITIES SHOW THAT MALES WITH SCROTED TESTIS AND NURSING FEMALES OCCUR ALL OVER THE YEAR; WHEREAS PREGNANT FEMALES ARE ONLY PRESENT AT FALL AND WINTER. LITTER SIZE VARIED BETWEEN ONE AND FOUR EMBRIOS WITH AN AVERAGE OF TWO. |
| publisher |
Anales del Instituto de Biología serie Zoología |
| publishDate |
2009 |
| url |
https://www.revistas.unam.mx/index.php/zoo/article/view/7037 |
| work_keys_str_mv |
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