Topic
Libyan jird
About: Libyan jird is a research topic. Over the lifetime, 16 publications have been published within this topic receiving 160 citations. The topic is also known as: Libyan jird.
Papers
TL;DR: The reproductive system, gametogenesis, anid developmlent of the microfilariae is described, which provides suitable material for morphological studies.
Abstract: The filarial parasite Dipetalonema witei is found naturally infecting the Libyan jird Meriones libycus; the adult worms live in the subcutaneous tissues and external miuscle layers; the microfilariae circulate in the blood and are transiiuitted by the argasid tick Ortnithodors.s t(arta'.ovskyi. The parasite is easily maintained in the laboratory, (Baltazard et al (1953); WortIms, Terry and Terry (1961)) and provides suitable material for morphological studies. This paper describes the reproductive system, gametogenesis, anid developmlent of the microfilariae.
41 citations
TL;DR: It could be concluded that phylogeny plays an important role in determining gastrointestinal morphology while diet plays a subordinate role in the desert rodents in the present study.
Abstract: Meriones rex (King jird), Meriones libycus (Libyan jird), Acomys dimidiatus (Eastern spiny mouse), Acomys cahirinus (Egyptian spiny mouse), and Dipodillus dasyurus (Wagner's dipodil) are five species of small rodents of the superfamily Muroidea with distributions in Eastern Africa, Egypt, and the desert regions of the Arabian Peninsula. Water is scarce in these regions and may result in relatively low-digestible food. The aim of the present study is to describe and compare the gastrointestinal tract morphology and morphometry of these five species in order to elucidate whether morphology is influenced by phylogeny or dietary preference. Each segment of the gastrointestinal tract of each species was macroscopically examined and the length and basal surface area of each segment was measured. Standard histologic procedures were performed to determine a surface enlargement factor to determine the mucosal luminal surface area. A unilocular-hemiglandular stomach was observed in all the species examined. The caeca of all the species were long and arranged into a loose spiral toward the caecal tip with the ileocaecal and caeco-colic openings positioned close together. Two rows of oblique folds could be observed in the proximal colon of all species except in D. dasyurus which had longitudinal folds. Morphometric analysis showed the largest stomach in A. cahirinus and the largest caecum and colon in M. libycus. All the species can be grouped in the family Muridae in two subfamilies and similarities were observed including the hemiglandular stomach and relatively large caecum. It could be concluded that phylogeny plays an important role in determining gastrointestinal morphology while diet plays a subordinate role in the desert rodents in the present study.
16 citations
TL;DR: The results extend the role for KiSS-1 in activating the HPG axis in this desert rodent in its natural biotope by relaying environmental cues as in other seasonal non-desert rodent models.
13 citations
TL;DR: The King jird showed larger intraspecific variability than the Libyan jird, which may reflect more plasticity in its circadian clock, allowing it to adapt quicker to environmental changes.
12 citations
TL;DR: The Libyan jird was found to shift its breeding to the cooler months of winter in the absence of rainfall, strengthening the findings that changes in rainfall and temperature in dry deserts are critical cues for the onset of reproduction in small mammals.
Abstract: The reproductive pattern of the Libyan jird (Meriones libycus Lichtenstein, 1823) from central Saudi Arabia was investigated in the absence of rainfall. In this study, body mass, morphometry of the...
10 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2020 | 2 |
| 2019 | 1 |
| 2017 | 1 |
| 2014 | 3 |
| 2013 | 2 |