Frequency of mandibular tori in prehistoric and historic Japanese island populations

2016 ◽  
Vol 405 ◽  
pp. 87-100 ◽  
Author(s):  
Yuriko Igarashi
Keyword(s):  
Japanese Island ◽  
Island Populations ◽  
Mandibular Tori

scholarly journals Sex-linked and autosomal microsatellites provide new insights into island populations of the tammar wallaby

Heredity ◽  
2013 ◽  
Vol 112 (3) ◽  
pp. 333-342 ◽  
Author(s):  
A J MacDonald ◽  
N N FitzSimmons ◽  
B Chambers ◽  
M B Renfree ◽  
S D Sarre
Keyword(s):  
Tammar Wallaby ◽  
Island Populations ◽  
Autosomal Microsatellites

Biogeographical patterns and co-occurrence of pathogenic infection across island populations of Berthelot’s pipit (Anthus berthelotii)

Oecologia ◽  
2011 ◽  
Vol 168 (3) ◽  
pp. 691-701 ◽  
Author(s):  
Lewis G. Spurgin ◽  
Juan Carlos Illera ◽  
David P. Padilla ◽  
David S. Richardson
Keyword(s):  
Island Populations ◽  
Pathogenic Infection

Potential impacts of poison baiting for introduced house mice on native animals on islands in Jurien Bay, Western Australia

2016 ◽  
Vol 43 (1) ◽  
pp. 61 ◽  
Author(s):  
Clifford Bennison ◽  
J. Anthony Friend ◽  
Timothy Button ◽  
Harriet Mills ◽  
Cathy Lambert ◽  
...  
Keyword(s):  
Western Australia ◽  
Rhodamine B ◽  
Native Species ◽  
House Mice ◽  
Mus Domesticus ◽  
Target Species ◽  
Island Populations ◽  
Delivery Technique ◽  
Poison Baiting ◽  
Competition For Resources

Context House mice (Mus domesticus) are present on Boullanger and Whitlock islands, Western Australia, and could potentially threaten populations of the dibbler (Parantechinus apicalis) and grey-bellied dunnart (Sminthopsis griseoventer) through competition for resources. A workshop in 2007 recommended a study to assess the feasibility of eradicating house mice from the islands by using poison baits and of the risk posed to non-target native species. Aim We aimed to assess the risk to non-target native species if poison baiting was used to eradicate house mice on Boullanger and Whitlock islands. Methods Non-toxic baits containing the bait marker rhodamine B were distributed on Boullanger Island and on the mouse free Escape Island to determine the potential for primary poisoning. Acceptance of baits by mammals was measured through sampling and analysis of whiskers, and by reptiles through observations of dye in faeces. To determine the potential for secondary exposure to poison, the response of dibblers to mouse carcasses was observed using motion-activated cameras. Bait acceptance was compared using two methods of delivery, namely, scattering in the open and delivery in polyvinyl chloride (PVC) tubes. A cafeteria experiment of bait consumption by dibblers was also undertaken using captive animals held at the Perth Zoo. Ten dibblers were offered non-toxic baits containing rhodamine B in addition to their normal meals; consumption of bait and the presence of dye in whiskers were measured. Key results Bait acceptance on the islands was high for house mice (92% of individuals) and dibblers (48%) and it was independent of bait-delivery technique. There was no evidence of bait acceptance by grey-bellied dunnarts. Dibblers may consume mice carcasses if available; however, no direct consumption of mice carcasses was observed with movement sensor cameras but one dibbler was observed removing a mouse carcass and taking it away. During the cafeteria experiment, 9 of 10 captive dibblers consumed baits. Conclusions This investigation demonstrated that dibblers consume baits readily and island populations would experience high mortality if exposed to poison baits. Poison baiting could effectively eradicate mice from Boullanger and Whitlock islands but not without mortality for dibblers. Implications Toxic baits could be used to eradicate mice from Boullanger and Whitlock islands, provided that non-target species such as dibblers were temporarily removed from the islands before the application of baits.

scholarly journals On the Etiology and Significance of Palatal and Mandibular Tori

CRANIO® ◽  
2010 ◽  
Vol 28 (4) ◽  
pp. 213-215 ◽  
Author(s):  
G. Dave Singh
Keyword(s):  
Mandibular Tori

The spatial genetic structure of bank vole (Myodes glareolus) and yellow-necked mouse (Apodemus flavicollis) populations: The effect of distance and habitat barriers

2009 ◽  
Vol 59 (2) ◽  
pp. 169-187 ◽  
Author(s):  
Michal Kozakiewicz ◽  
Alicja Gryczyńska–Siemiątkowska ◽  
Hanna Panagiotopoulou ◽  
Anna Kozakiewicz ◽  
Robert Rutkowski ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Structure ◽  
Bank Vole ◽  
Microsatellite Loci ◽  
Myodes Glareolus ◽  
Apodemus Flavicollis ◽  
Island Populations ◽  
Local Populations ◽  
Bank Vole Myodes Glareolus ◽  
Yellow Necked Mouse

AbstractHabitat barriers are considered to be an important factor causing the local reduction of genetic diversity by dividing a population into smaller sections and preventing gene flow between them. However, the “barrier effect” might be different in the case of different species. The effect of geographic distance and water barriers on the genetic structure of populations of two common rodent species – the yellow-necked mouse (Apodemus flavicollis) and the bank vole (Myodes glareolus) living in the area of a lake (on its islands and on two opposite shores) was investigated with the use of microsatellite fragment analysis. The two studied species are characterised by similar habitat requirements, but differ with regard to the socio-spatial structure of the population, individual mobility, capability to cross environmental barriers, and other factors. Trapping was performed for two years in spring and autumn in north-eastern Poland (21°E, 53°N). A total of 160 yellow-necked mouse individuals (7 microsatellite loci) and 346 bank vole individuals (9 microsatellite loci) were analysed. The results of the differentiation analyses (FST and RST) have shown that both the barrier which is formed by a ca. 300 m wide belt of water (between the island and the mainland) and the actual distance of approximately 10 km in continuous populations are sufficient to create genetic differentiation within both species. The differences between local populations living on opposite lake shores are the smallest; differences between any one of them and the island populations are more distinct. All of the genetic diversity indices (the mean number of alleles, mean allelic richness, as well as the observed and expected heterozygosity) of the local populations from the lakeshores were significantly higher than of the small island populations of these two species separated by the water barrier. The more profound “isolation effect” in the case of the island populations of the bank vole, in comparison to the yellow-necked mouse populations, seems to result not only from the lower mobility of the bank vole species, but may also be attributed to other differences in the animals' behaviour.

Sign in / Sign up

Export Citation Format

Share Document