TL;DR: The natural distribution of 17 non-flying mammal species occurring wild in both the Maghreb (north-west Africa) and Iberia (southwest Europe) is considered in this paper, and it is concluded that only four species, Red Fox Vulpes vulpes, Wild Boar Sus scrofa, Wild Cat Felis silvestris and Otter Lutra lutra, are native to both regions, while another three, Red Deer Cervus elaphus, Brown Bear Ursus arctos and Aurochs Bos primigenius, were
Abstract: The natural distribution of the 17 non-flying mammal species occurring wild in both the Maghreb (north-west Africa) and Iberia (south-west Europe) is considered. It is concluded that only four species – Red Fox Vulpes vulpes, Wild Boar Sus scrofa, Wild Cat Felis silvestris and Otter Lutra lutra – are native to both regions, while another three – Red Deer Cervus elaphus, Brown Bear Ursus arctos and Aurochs Bos primigenius – were native to North Africa until the mid-Holocene but have probably died out naturally. Algerian Hedgehog Atelerix algirus, Barbary Ape Macaca sylvanus, Genet Genetta genetta and Egyptian Mongoose Herpestes ichneumon are widely accepted as introductions to Europe from North Africa. The remaining six species, and Red Deer now found in Africa, were also probably introduced – Rabbit Oryctolagus cuniculus, Weasel Mustela nivalis, Wood Mouse Apodemus sylvaticus and Lesser White-toothed Shrew Crocidura russula from Europe to Africa; Algerian Mouse Mus spretus from Africa to Europe; Savi’s Pygmy Shrew Suncus etruscus perhaps from the eastern Mediterranean to both Iberia and the Maghreb.
There are two Maghrebi species which, although not found in Europe, are more closely related to Palaearctic than to Afrotropical species: Garden Dormouse Eliomys melanurus, probably native to north-west Africa, although possible augmentation of the natural population cannot be ruled out, and Whitaker’s Shrew Crocidura whitakeri, a North African endemic.
Removal of so many species of European provenance from the list of mammals native to north-west Africa should not be considered to weaken its position as part of the Palaearctic zoogeographical region. Bats and other, non-mammalian, taxa illustrate the clear faunal relationship between the Maghreb and south-west Europe, whilst emphasizing its distinction from subsaharan Africa.
TL;DR: Probując odpowiedziec na pytanie czy poziom metabolizmu ryjowek jest rzeczywiście niezwykle wysoki, zmierzono zuzycie tlenu u 13 roznych gatunkow.
Abstract: Probując odpowiedziec na pytanie czy poziom metabolizmu ryjowek jest rzeczywiście niezwykle wysoki, zmierzono zuzycie tlenu u 13 roznych gatunkow. Z gatunkow europejskich byly to: Sorex araneus, S. minutus, Neomys fodiens, Crocidula russula i Suncus etruscus; z afrykanskich-Crocidura bottegi, C. bicolor, C. jouvenetae, C. poensis, C. theresae, C. wimmeri, C. flavescens i C. giffardi.
TL;DR: It appears that the pulmonary gas exchange parenchyma of these smallest mammals is well suited to supply the organism with the comparatively high levels of O2 required by the high metabolic rates, exhibiting a structural adaptation of the lung to higher VO2.
TL;DR: A comparison of terrestrial small mammal coenoses belonging to nine different biotopes in the tips of the Iberian and Italian peninsulas was carried out using the pitfall trapping method as mentioned in this paper.
Abstract: A comparison of terrestrial small mammal coenoses belonging to nine different biotopes in the tips of the Iberian and Italian peninsulas was carried out using the pitfall trapping method. The influence of both habitat type and peninsular effect on composition of small mammal coenoses was analysed In Southern Italy. 203 specimens belonging to seven species were trapped: Suncus etruscus (Savi, 1822), Crocidura suaveolens (Pallas. 1811 ), C. leucodon (Hermann, 1780), Microtus savii (de Selys-Longchamps, 1838), Apodemus sylvaticus (L., 1758), A. flavicollis (Melchior, 1834) and Mus musculus domesticus Schwarz & Schwarz, 1943. In Southern Spain 428 specimens belonging to five species were trapped: Suncus etruscus, Crocidura russula (Hermann, 1780), Microtus duodecimcostatus de Selys-Longchamps. 1839 ), Apodemus svlvaticus and Mus spretus Lataste, 1883. The relative densit y of small mammals occurring in the nine Spanish sampling stations was twice that recorded in the Italian stations: however the number of species recorded in the different biotopes show similar mean values, ranging from three to five in Andalusia and from, three to six in Calabria. Apodemus sylvaticus was the dominant species in the Calabrian stations, whereas Crocidura russula prevailed in Andalusia. The biotic diversity values are very similar in the Calabrian and Andalusian biotopes. By contrast, the Insectivora/Rodentia ratio was always higher in Andalusia. The more xerophytic biotopes showed greater similarities between the communities in Southern Spain and Southern Italy, while the cooler biotopes differed between these two peninsulas.
TL;DR: The composition of the small mammal commu- nity studied was rather similar when using Sherman and mesh traps, but differed strongly from the community sampled by pitfall traps, so a combination of trapping techniques is necessary to assess the composition of small mam- mal communities.
Abstract: We aimed to investigate trap efficiency and specificity of three widely used live trapping methods (Sherman, mesh, and pitfall traps) in an agricultural landscape of NE Spain. We trapped 243 small mammals of 8 different species. Sherman traps yielded more species (6) than mesh (5) and pitfall (3) traps. Log-linear analysis for contingency tables showed that the three trapping methods used were species-specific and the analysis of the standardized residuals pointed out that Apodemus sylvaticus and Mus spretus were under- sampled by pitfall traps, whereas Suncus etruscus and Microtus duodecimcostatus were significantly over-sampled by pitfall traps. Finally, Suncus etruscus was significantly un- der-sampled by Sherman and mesh traps. The composition of the small mammal commu- nity studied was rather similar when using Sherman and mesh traps, but differed strongly from the community sampled by pitfall traps. As previously pointed out by many authors, a combination of trapping techniques is necessary to assess the composition of small mam- mal communities.