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Of mice and mammoths: generality and antiquity of the island rule
- Mark V. Lomolino, Alexandra A.E. Geer, G. Lyras, M. R. Palombo, D. Sax, R. Rozzi
- 1 August 2013
The generality of the island rule is assessed in a database comprising 1593 populations of insular mammals, and whether observed patterns differed among taxonomic and functional groups is tested.
The evolution of the brain in Canidae (Mammalia: Carnivora)
- G. Lyras
Some canid lineages evolved large size and certain craniodental characters (e.g., deep jaws and large canines), which allowed them to prey on large-bodied animals and a stasis is noted in brain evolution.
Patterns and Trends
External brain anatomy in relation to the phylogeny of Caninae (Carnivora: Canidae)
This work describes the external cerebrum anatomy of 29 out of the 35 living Caninae species, 11 of which are described for the first time, and some phylogenetic interpretations are presented.
CYNOTHERIUM SARDOUS, AN INSULAR CANID (MAMMALIA: CARNIVORA) FROM THE PLEISTOCENE OF SARDINIA (ITALY), AND ITS ORIGIN
It appears that Xenocyon is the ancestor of Cynotherium, and that this large hypercarnivorous canid, once on the island, faced a rather different menu consisting of small prey only, which resulted in a smallsized dog whose dentition remained much the same, whereas its skull lost the typical fortifications.
The effect of area and isolation on insular dwarf proboscideans
The results support the generality of the island rule in the sense that all but one of the elephants experienced dwarfism on islands, and found no support for the hypothesis that body size of elephants declines with island isolation.
The origin of Homo floresiensis and its relation to evolutionary processes under isolation
A geometric morphometric analysis separates H. floresiensis from all H. sapiens, including the pathological and insular forms, and Australopithecus falls separately from all other skulls.
A dwarf elephant and a rock mouse on Naxos (Cyclades, Greece) with a revision of the palaeozoogeography of the Cycladic Islands (Greece) during the Pleistocene
Brain Changes during Phyletic Dwarfing in Elephants and Hippos
- G. Lyras
- BiologyBrain, Behavior and Evolution
- 1 April 2019
The results of this study indicate that insular dwarf species follow brain-body allometric relationships different from the expected patterns seen for their mainland relatives.