| ²é¿´: 206 | »Ø¸´: 3 | |||
| µ±Ç°Ö÷ÌâÒѾ´æµµ¡£ | |||
phytolithÒø³æ (СÓÐÃûÆø)
|
[½»Á÷]
½ô¼±ÇóÖú·Ò루¸¹×ã¿ÇÌåÀࣩ
|
||
| Morphometrics of gastropod shells: In order to describe and discriminate ecophenotypes or species of Radix and Bellamya with the aid of shell characters the morphometric analyses will be conducted using frontal view images described by 5 landmarks and 19 sliding semi-landmarks. The landmarks (repeatability assessment) will be digitised using tpsDIG software (Rohlf 1998). Shape coordinates will be computed using generalised Procrustes (least squares) superimposition (GPA) ( in tpsRWA software. From the 24 GPA aligned landmarks and semi-landmarks the uniform (alfa = 0) and non-uniform (partial warps) components will be computed using thin-plate spline and used together for statistical comparisons of shape variation within and among populations. Shape variables (partial warps) and uniform shape components will be computed . Closeness of tangent shape space to the curved shape space will assessed by comparing Procrustes distances in the shape space to Euclidean distance in the tangent space. Shape variation and shape variables can be analysed using conventional multivariate statistical techniques. Discontinuities of shape variation among and within the samples (presence of more than one putative species) will be analysed and usefulness of the semi-landmark approach to identify potential taxonomic characters assessed. |
» ²ÂÄãϲ»¶
µ÷¼Á
ÒѾÓÐ6È˻ظ´
Ò»Ö¾Ô¸ ½ÄÏ´óѧ 085602 »¯¹¤×¨Ë¶ 338·ÖÇóµ÷¼Á
ÒѾÓÐ12È˻ظ´
²ÄÁÏר˶(0856) 339·ÖÇóµ÷¼Á
ÒѾÓÐ8È˻ظ´
377Çóµ÷¼Á
ÒѾÓÐ5È˻ظ´
0703µ÷¼Á£¬Ò»Ö¾Ô¸Ìì½ò´óѧ319·Ö
ÒѾÓÐ6È˻ظ´
Ò»Ö¾Ô¸Äϲý´óѧ£¬085600£¬344·ÖÇóµ÷¼Á
ÒѾÓÐ5È˻ظ´
308Çóµ÷¼Á
ÒѾÓÐ8È˻ظ´
ÕÒµ÷¼Á
ÒѾÓÐ9È˻ظ´
Ò»Ö¾Ô¸Ö£ÖÝ´óѧ085600Çóµ÷¼Á
ÒѾÓÐ12È˻ظ´
316Çóµ÷¼Á
ÒѾÓÐ3È˻ظ´

ÓÄÑŰٺÏ
Òø³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 393.3
- Ìû×Ó: 131
- ÔÚÏß: 9.8Сʱ
- ³æºÅ: 730629
- ×¢²á: 2009-03-25
- ÐÔ±ð: MM
- רҵ: Äý¾Û̬ÎïÐÔ II £ºµç×ӽṹ
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
phytolith(½ð±Ò+20,VIP+0):лл£¬¾¡¹ÜÒѾ´í¹ýÁËÍê¸åʱ¼ä£¬»¹ÎªÄãµÄŬÁ¦±íʾ¸Ðл£¡Ï£Íû³ÉΪÄãµÄÅóÓÑ¡£ 6-15 09:42
phytolith(½ð±Ò+20,VIP+0):лл£¬¾¡¹ÜÒѾ´í¹ýÁËÍê¸åʱ¼ä£¬»¹ÎªÄãµÄŬÁ¦±íʾ¸Ðл£¡Ï£Íû³ÉΪÄãµÄÅóÓÑ¡£ 6-15 09:42
|
¸¹×ã¿ÇÌåÀàµÄÐÎ̬·ÖÎö·¨£ºÎªÁ˽èÖúÓÚ¿ÇÌåÀදÎïµÄÌØÕ÷ÃèÊöºÍÇø·Ö»·ÀâÂݺÍÂܲ·ÂݵÄÉú̬±íÐͺÍÎïÖÖ£¬¿ÉÒÔÔËÓÃ5¸ö½ç±êºÍ19¸ö»¬Òưë½ç±êÃèÊöµÄÕýÃæÍ¼Ïñ½øÐÐÐÎ̬²âÁ¿Ñ§µÄ·ÖÎö¡£Ê¹ÓÃtpsDIGÈí¼þ£¨Rohlf 1998£©¿É½«ÕâЩ½ç±êÊý×Ö»¯¡£ÐÎ×´×ø±ê¿ÉÓÉÕûÌåµÄÆÕÊϵþºÏ·ÖÎö·¨£¨GPA£©¼ÆËã³öÀ´¡£ÔÚtpsRWAÈí¼þÖУ¬´ÓµÚ24¸öÓÃGPA·¨Ê¹³ÉÒ»ÏߵĽç±êºÍ°ë½ç±ê¿ªÊ¼£¬ÔÚͬһֱÏßÉÏ£¨alfa = 0£©ºÍ²»ÔÚÒ»ÌõÖ±ÏßÉÏ£¨¾Ö²¿ÍäÇú£©µÄµã¶¼¿ÉÒÔÓñ¡°å·ÂÑù·ÖÎö·¨¼ÆËã³öÀ´,½«ÉÏÊöÁ½ÖÖ·½·¨×ÛºÏʹÓÃÒÔÔÚÖÖȺÄÚ¼°ÖÖȺ¼ä¶ÔÐÎ×´µÄ±ä»¯½øÐÐͳ¼ÆÑ§µÄ±È½Ï¡£ÐÎ×´µÄ±ä»¯²¿·Ö£¨Ö±ÏßµÄÍäÇú²¿·Ö£©ÒÔ¼°²»±äµÄ²¿·Ö¶¼¿ÉÒÔ¼ÆËã³öÀ´¡£ÇÐÏßÐÎ×´¿Õ¼äÓëÍäÇúÐÎ×´¿Õ¼äµÄµÄÏàËÆ¶È¿ÉÒÔͨ¹ý±È½ÏÐÎ×´¿Õ¼äµÄProcrustes¾àÀëÓëÇÐÏ߿ռäµÄEuclidean¾àÀë¹ÀËã³öÀ´¡£ÐÎ×´µÄ±ä»¯³Ì¶È¼°ÐÎ×´±äÁ¿¿ÉÒÔͨ¹ý´«Í³µÄ¶à±äÁ¿Í³¼ÆÑ§¼¼Êõ½øÐзÖÎö¡£¶ÔÑù±¾Ö®¼äºÍÑù±¾ÄÚ²¿ÐÎ×´±ä»¯µÄ²»Á¬ÐøÐÔ£¨¼´³öÏÖ²»Ö¹Ò»¸öµÄ¼ÙÏëÎïÖÖ£©½øÐÐÁË·ÖÎö£¬²¢ÇÒ¶Ô°ë½ç±ê·¨ÔÚ¼ø¶¨Ç±ÔڵķÖÀàÌØÕ÷·½ÃæµÄÓÐÓÃÐÔ½øÐÐÁËÆÀ¹À¡£ ÄãÕâÎÄÕÂ̫רҵÁË£¬·µÃÈËÍ·¶¼´óÁË¡£±¾È˶ÔÄãµÄרҵһÇϲ»Í¨£¬¹À¼Æ·ÒëµÄÓв»×¼È·µÄµØ·½£¬Äã¶Ô±ÈÔÎÄ×Ô¼ºÔٺúÿ´¿´°É¡£Ï£Íû»á¶ÔÄãÓÐËù°ïÖú¡£ |
2Â¥2009-06-14 12:56:52
ÓÄÑŰٺÏ
Òø³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 393.3
- Ìû×Ó: 131
- ÔÚÏß: 9.8Сʱ
- ³æºÅ: 730629
- ×¢²á: 2009-03-25
- ÐÔ±ð: MM
- רҵ: Äý¾Û̬ÎïÐÔ II £ºµç×ӽṹ
3Â¥2009-06-14 17:33:31
phytolith
Òø³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 562.8
- É¢½ð: 63
- ºì»¨: 2
- Ìû×Ó: 256
- ÔÚÏß: 51.3Сʱ
- ³æºÅ: 547803
- ×¢²á: 2008-04-17
- ÐÔ±ð: GG
- רҵ: µÚËļ͵ØÖÊѧ

4Â¥2009-06-15 09:49:05














»Ø¸´´ËÂ¥