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2020, 55(4):413-420.
DOI: 10.13859/j.cjz.202004001
Abstract:
There is currently little information on resting behavior of wild Guizhou snub-nosed monkeys (Rhinopithecus brelichi). This field study on the ecology and behaviors of this species was conducted in Fanjingshan National Nature Reserve, China. Parameters related to resting behavior including the posture, forest/tree strata, support diameter and inclinations, and numbers in huddling groups were recorded by ad libitum sampling method from December 2008 to April 2009. Our results showed that sitting was the most common posture (99%); the middle tree stratum was most frequently used (52%) during resting periods; the medium diameter of support branches (5﹣10 cm) and the approaching level of support branches inclinations were most frequently used (Table 1); and huddling group most frequently comprised of two individuals. And there was a negative correlation between tree strata and the diameter of support branches (r =﹣0.478, P < 0.05, n = 50). There was also a significant difference of average huddling group size between different tree strata (Fig. 1, Fig. 2). Vertical distribution of support resources may influence both huddling group size and tree strata use in Rhinopithecus brelichi.
There is currently little information on resting behavior of wild Guizhou snub-nosed monkeys (Rhinopithecus brelichi). This field study on the ecology and behaviors of this species was conducted in Fanjingshan National Nature Reserve, China. Parameters related to resting behavior including the posture, forest/tree strata, support diameter and inclinations, and numbers in huddling groups were recorded by ad libitum sampling method from December 2008 to April 2009. Our results showed that sitting was the most common posture (99%); the middle tree stratum was most frequently used (52%) during resting periods; the medium diameter of support branches (5﹣10 cm) and the approaching level of support branches inclinations were most frequently used (Table 1); and huddling group most frequently comprised of two individuals. And there was a negative correlation between tree strata and the diameter of support branches (r =﹣0.478, P < 0.05, n = 50). There was also a significant difference of average huddling group size between different tree strata (Fig. 1, Fig. 2). Vertical distribution of support resources may influence both huddling group size and tree strata use in Rhinopithecus brelichi.
CUI Duo-Ying
,
NIU Ke-Feng
,
Chia L. Tan
,
Mouyu Yang
,
SHI Lei
,
ZHANG Wei-Yong
,
ZHANG Jin-Guo
,
YANG Ye-Qin
2014, 49(5):792-792.
DOI: 10.13859/j.cjz.201405020
Abstract:
Short essay, no abstract.
Short essay, no abstract.
2011, 46(6):88-95.
Abstract:
The morphological structure of female reproductive system of Octopus tankahkeei was investigated from August,2002 to December,2003. The female reproductive system of O.tankahkeei, like many cephalopods,is composed of three parts morphologically: ovary,oviduct,and oviducal gland.The ovary is a single structure,which contains oocytes at different stages.The oocytes are surrounded by a layer of columnar follicle cells which enfold into the oocyte cytoplasm and their nuclei are arranged along the longitudinal axis of the cells.Different from proximal oviduct,mushroom-like protruding enwrapped by many finger-like folds lies in the distal oviduct.The oviducal gland can be divided into three parts: central lumen,spermathecaes,and gland tissue.The twenty-four spermathecaes are special parts in oviduct gland which contain spermatozoa after coupling.We propose to divide the ovarian cycle of O.tankahkeei into four phases: previtellogenesis,early vitellogenesis,full vitellogenesis,and late vitellogenesis phases.
The morphological structure of female reproductive system of Octopus tankahkeei was investigated from August,2002 to December,2003. The female reproductive system of O.tankahkeei, like many cephalopods,is composed of three parts morphologically: ovary,oviduct,and oviducal gland.The ovary is a single structure,which contains oocytes at different stages.The oocytes are surrounded by a layer of columnar follicle cells which enfold into the oocyte cytoplasm and their nuclei are arranged along the longitudinal axis of the cells.Different from proximal oviduct,mushroom-like protruding enwrapped by many finger-like folds lies in the distal oviduct.The oviducal gland can be divided into three parts: central lumen,spermathecaes,and gland tissue.The twenty-four spermathecaes are special parts in oviduct gland which contain spermatozoa after coupling.We propose to divide the ovarian cycle of O.tankahkeei into four phases: previtellogenesis,early vitellogenesis,full vitellogenesis,and late vitellogenesis phases.
2008, 43(2):130-134.
Abstract:
In this paper, the histopathological structure of digestive system, spleen and lymph node in an elk (Elaphurus davidianus) infected by bovine viral diarrhoea-mucosal disease (BVD-MD) was observed by routine paraffin section and H.E staining. The results show that the lesions mainly exist in the layer of mucosa: cells of epithelium desquamated, necrosis, capillaries in lamina propria hyperemia, and inflammatory cells penetration. Lesions in spleen are mainly acute septicemia, with severe hyperemia and haemorrhage in red pulp, and disappearance of white pulp. The necrosis in lymph node is severe, with destruction of its histological structure, and only appearance of lymph cells penetrated. The histopathological observation has provided morphological data for clinical diagnosis.
In this paper, the histopathological structure of digestive system, spleen and lymph node in an elk (Elaphurus davidianus) infected by bovine viral diarrhoea-mucosal disease (BVD-MD) was observed by routine paraffin section and H.E staining. The results show that the lesions mainly exist in the layer of mucosa: cells of epithelium desquamated, necrosis, capillaries in lamina propria hyperemia, and inflammatory cells penetration. Lesions in spleen are mainly acute septicemia, with severe hyperemia and haemorrhage in red pulp, and disappearance of white pulp. The necrosis in lymph node is severe, with destruction of its histological structure, and only appearance of lymph cells penetrated. The histopathological observation has provided morphological data for clinical diagnosis.
2016, 51(4):675-681.
DOI: DOI: 10.13859/j.cjz.201604021
Abstract:
Four mating combinations of Hyriopsis cumingii inclouding white♂×white♀(WW), white♂×purple♀(WP), purple♂×white♀(PW) and purple♂×purple♀(PP) were established by diallel crossing of white and purple selected strains, and then the number of offspring whose nacre color separation occurs was count and analysed by Chi-square test. The results showed that the nacre color of white inbred offspring was all white, no occurrence of color separation; In hybrid offspring, the color separation appeared two kind of situations. The offspring of one situation were all purple nacre color, and the other entirely different one were color separation occurrence, with the segregation of purple and white individual fits a ratio of 1:1; In purple inbred offspring, the color separation appeared two kind of situations too. The offspring of one situation were all purple nacre color, and the other entirely different one were color separation occurrence, with the ratio of purple and white segregating individual was 3:1. It indicated that shell nacre color of H. cumingii which can be inherited stably was controlled by genes, and it belong to qualitative trait. The purple nacre color trait was dominant over white nacre color, and the two kinds of color traits there were no maternal inheritance. The white individual was recessive homozygote, which purified breeding was more easily, while the purple individual may be homogeneous or heterogeneous, so purified breeding was relatively difficult.
Four mating combinations of Hyriopsis cumingii inclouding white♂×white♀(WW), white♂×purple♀(WP), purple♂×white♀(PW) and purple♂×purple♀(PP) were established by diallel crossing of white and purple selected strains, and then the number of offspring whose nacre color separation occurs was count and analysed by Chi-square test. The results showed that the nacre color of white inbred offspring was all white, no occurrence of color separation; In hybrid offspring, the color separation appeared two kind of situations. The offspring of one situation were all purple nacre color, and the other entirely different one were color separation occurrence, with the segregation of purple and white individual fits a ratio of 1:1; In purple inbred offspring, the color separation appeared two kind of situations too. The offspring of one situation were all purple nacre color, and the other entirely different one were color separation occurrence, with the ratio of purple and white segregating individual was 3:1. It indicated that shell nacre color of H. cumingii which can be inherited stably was controlled by genes, and it belong to qualitative trait. The purple nacre color trait was dominant over white nacre color, and the two kinds of color traits there were no maternal inheritance. The white individual was recessive homozygote, which purified breeding was more easily, while the purple individual may be homogeneous or heterogeneous, so purified breeding was relatively difficult.
2018, 53(3):346-346.
DOI: 10.13859/j.cjz.201803019
Abstract:
