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80 3. ECOLOGY OF M. AVELLANARIUS ing by M. avellanarius in Mediterranean mixed forest. According to White (2007), supplementary sources of animal protein may be important for seed-eating rodents to improve their breeding. Feeding by M. avellanarius on …
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ing tree fruits, but only stones of bird cherry fruits. Captive dormice did not eat the endo- derm of berry seeds and utilized only the flesh; many faecal samples contained whole bramble seeds (Richards et al. 1984). Seeds of raspberries were detected in …
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82 3. ECOLOGY OF M. AVELLANARIUS females, with more than 90% of all dormice detected in nestboxes in April being adult males. Emerging from hibernation, the weight of the males is comparatively high, the average weight of males in nestboxes in the first …
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of many young females born in the previous year resulted in lower average weights com- pared to males during April-May. Increases in the weight dynamics curve of adult fe- males during June-August were related to two main factors: 1) breeding females, not …
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84 3. ECOLOGY OF M. AVELLANARIUS Weight dynamics curves during the year and average weights of M. avellanarius in May-July (about 17-19 g) are rather similar in all investigated parts of the distributional range, including Lithuania (Juskaitis 2001c), …
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3.8. INTERACTIONS WITH OTHER ANIMALS 40 4 35 4 30 4 25 4 20 5 > _ Lim | wel Aug-| Aug-!l (1 juv-08 i juv-06 [J adult females MJ adult males Sep-l Sep-ll Oct-I Fig. 41. Comparison of weights (mean + 2SD) in separate demographic groups of M. avellanarius in …
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86 3. ECOLOGY OF M. AVELLANARIUS Fig. 42. Pied flycatchers (left) Lithuanian forests. In Lithuania, M. avellanarius occupied nests of pied flycatchers Ficedula hypoleuca (Fig. 42) most frequently, particularly in mid-May, i.e. in the period when the fly- …
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3.8. INTERACTIONS WITH OTHER ANIMALS (n = 146) were found in nests of F. hypoleu- ca: males were found in 51.4% of cases, fe- males in 41.8%, males and females together in 6.8%. At site A, the percentage of F. hy- poleuca nests destroyed by M. …
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88 3. ECOLOGY OF M. AVELLANARIUS animal origin. In Lithuania, M. avellanarius most often occupy unfinished nests of P. ma- jor, this containing only the moss layer and very little wool or hair or these nests are lined with vegetable fibre. Likhachev …
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drag bird nests out (Juskaitis 1999c, 2010; Ulevicius & Juskaitis 2005). Insome cases, M. avellanarius themselves suffered from hole-nesting birds (Juskaitis 1995a). Nestboxes were reported several times to contain dead M. avellanarius with deep wounds to …
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90 3. ECOLOGY OF M. AVELLANARIUS The presence of old dormouse nests in nest- boxes is associated with an increased per- centage of F. hypoleuca nests being destroyed (x°, = 14.0, p < 0.001). In the years when old dormouse nests were removed (1980-1982 and …
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3.8. INTERACTIONS WITH OTHER ANIMALS building their nests not under the lid of the nestboxes, but inside the dormouse nests. However, in the nests there was room only for one hornet comb, so the insects had to leave the nestbox. In Lithuania at site A, in …
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92 3. ECOLOGY OF M. AVELLANARIUS Competition between M. avellanarius and A. flavicollis occurs for nestboxes, not for territory. This can be proved by the fact that after two or three nestboxes were put up on some trees, in six cases both M. avellanarius …
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3.8. INTERACTIONS WITH OTHER ANIMALS In exceptional cases, G. glis can even kill and eat the young of M. avellanarius. Lozan (1970) wrote that M. avellanarius was found among food remains of G. glis, but only solitary instances were recorded. In Hun- …
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94 3. ECOLOGY OF M. AVELLANARIUS quercinus — were caught during one period of time in 1962 (Kratochvil 1967; Holisova 1968). All four dormouse species were also found in the northern Tirol (Schedl 1968), the Fichtel Mountains (Albrecht 1957), Ba- varia …
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3.8. INTERACTIONS WITH OTHER ANIMALS tion for a natural tree hollow. He found an injured M. avellanarius at the base of a tree and assumed that this animal was sleeping in a hollow at a height of 12 m and had been expelled by a black woodpecker Dryocopus …
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96 3. ECOLOGY OF M. AVELLANARIUS hazel crop is not abundant, nut-eating ani- mals can consume all the hazelnuts by early September. Birds, mostly thrushes Tur- dus spp., which feed on the fruits of glossy buckthorn Frangula alnus (Logminas 1990) may also …
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3,8. INTERACTIONS WITH OTHER ANIMALS Table 12. List of predators in whose diet M. avellanarius were found Vipera aspis Vipera berus Elaphe longissima Strix aluco Tyto alba Asio otus Athene noctua Bubo bubo Glaucidium passerinum Aegolius funereus Strix …
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98 3. ECOLOGY OF M. AVELLANARIUS fourth most abundant prey of S. aluco and composed 8.48% among 13 912 prey items (Obuch 2004). In higher mountainous zones and wetter areas of Slovakia, which are mostly covered with mixed conifer-deciduous for- ests or …
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Fig. 50. Among mammalian predators, M. avellanarius was most often found in the diets of red fox and 3. INTERACTIONS WITH OTHER ANIMALS martens: a) red fox; b) pine marten (photos by V. Stirké). ten Martes foina (24 specimens comprising 6.15% of all …
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100 3. ECOLOGY OF M. AVELLANARIUS should be noted that litters of dormice were present in eight of the nests. Two out of four juveniles of M. avellanarius were found among the nest remains inside one nestbox, while the main part of the nest was dragged …
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3.8. INTERACTIONS WITH OTHER ANIMALS total, 47 nymphs of ticks were removed from four individuals of M. avellanarius, and a new species of Lyme disease spirochete Bor- relia spielmanii sp. nov. was detected in ticks feeding on E. quercinus and M. …
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102 4. Population structure, parameters and their dynamics in M. avellanarius 4.1. Population abundance and its dynamics in M. avellanarius 4.1.1. Population density in M. avellanarius To understand the dynamics of a popula- tion it is necessary to know …
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in different parts of its range and can reach a maximum of up to 15 ind./ha (Table 13). At study site A in Lithuania, the aver- age density of the M. avellanarius popula- tion was 1.0 + 0.2 ind./ha (n = 19) in spring and 3.1 + 0.7 ind./ha (n = 21) in …
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104 4. POPULATION STRUCTURE IN M. AVELLANARIUS may also be overestimated, because they were estimated in comparatively small areas (only 1-2 ha), had no boundary strip added when calculating densities and the studies were of high-density nestbox grids. …
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106 4. POPULATION STRUCTURE IN M. AVELLANARIUS M. avellanarius has disappeared from about half its geographical range in Britain, and one of the primary objectives of the NDMP is to detect any further change in abundance (e.g. Bright & Morris 1996; …
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Population density, ind./ha 1988 fmm 1989 bo 1986 1987 1035 = co 1984 Population density, ind./ha 1984 1985 1986 1987 1988 1989 1990 1991 1992 4.1. ABUNDANCE AND ITS DYNAMICS [i] spring pe] autumn Fig. 54. Dynamics of the M. avellanarius population …
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108 4. POPULATION STRUCTURE IN M — oO oO L) females Hi males © oO QD oO a oO Number of adult dormice nN oO 1956 1957 1958 1959 1960 1961 1962 Fig. 55. Numbers of adult M. avellanarius found in nestboxes at the study site in the south of the Mos- cow …
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est edges may reflect edge suitability rather than total population size. In years with less food in the edges, the population may not decrease, but it may use other parts of the forest (Verbelyen 2012). Summarising, the results obtained in Lithuania and …