Wyniki wyszukiwania

1

Ram rut-involvement in a hunted population of mouflons

100%

Bon R., Gonzalez G., Bosch M. D., Cugnasse J. M.

Acta Theriologica

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1992

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tom 37

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nr 1-2

This study was conducted during the rut in a protected valley (Vialais) inhabited by one permanent population of ewes. This valley formes part of a larger hunted area. Rams which segregate from ewes entered the Vialais during the pre-rut, first young rams while the oldest rams arrived later. These latter stay in the company of ewes only when most lambs are conceived. The removal of old males shifted the male population structure, favoring young males. Old males tended a low proportion of ewes in mating groups which was used as an index of the male mating success. A larger proportion of young males successfully tended estrous ewes than in protected populations of wild sheep. Despite that, the population is highly productive which contradicts the arguments that precocious involment of young males in reproduction may be detrimental to population productivity.

2

The pineal gland of the red deer male. Histology and ultrastructure with notes on the fallow deer and mouflon pineals

86%

Wyrzykowski Z., Wyrzykowska K., Przybylska B., Krzywinski A.

Folia Morphologica

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1990

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tom 49

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nr 1-2

3

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European mouflon [Ovis orientalis musimon Schreber, 1782] in the ecosystem of Lower Silesia

86%

Nowakowski P., Chudoba K., Piasecki M.

Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica

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2009

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tom 27

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nr 4

7-13

4

Courtship and behavioral maturation of male mouflons

86%

Bon R., Recarte J. M., Gonzalez G., Cugnasse J. M.

Acta Theriologica

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1995

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tom 40

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nr 3

This study fails to find qualitative differences in courtship (ie intra- and intersexual interactions), according to maie age in mouflon Ovis gmelini musimon (Pallas, 1811). Conversely, clear age differences arose concerning the proportion of time males dedicated to reproductive and non-reproductive activities. During the rut, males spent less time feeding, and more time scanning and in male-male interactions as age increased. Young males (< 2 years old) interacted much less agonistically with other males and courted females twice ¡ess than oldest males (> 7 years old). So male behavioral maturation does not only depend on age but could also be influenced by demographic constraints, ie presence of old dominant males. The male reproductive effort, however, seemed independent of the presence of old dominant males, which could reflect a developmental constraint. Young males would not have enough energy reserves because of growth to dedicate as much time as mature males to reproduction, even in the absence of these latter.

5

Are there realistic opportunities to apply cloning and the other reproductive biotechnologies for safeguarding endangered species?

86%

Ptak G., Loi P.

Animal Science Papers and Reports. Supplement

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2004

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tom 22

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nr 1

6

Effects of deworming in mouflons from forest districts in the Pomerania Province, Poland

72%

Balicka-Ramisz A., Laurans L., Jurczyk, Bielewski A., Kwita E.

Annals of Parasitology

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2016

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tom 62

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nr Suppl.

7

Seasonal range use by European mouflon rams in medium altitude mountains

72%

Dubois M., Quenette P. Y., Bideau E., Magnac M. P.

Acta Theriologica

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1993

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tom 38

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nr 2

The dynamics of spatial distribution was followed in 18 radio-collared male mouflons Ovis ammon musimon (Pallas 1811) belonging to a population living in low mediterranean mountains. It was greatly modified with age and a marked interindividual variability was observed in young males. The modification of spatial behaviour appeared to be based on the process of progressive segregation of the sexes outside the rutting period. Spatial distribution by adult males seems to be more structured. However, ceHain males of at least 4 years of age were seen to be sedentary throughout the annua] cycle which suggests that the social segregation of the sexes does not necessarly involve spatial segregation. The hypothesis of neotenization in males of the genus Ovis is supported. The rut gTound is used with fidelity, being a site of particular spatial attachment, which could be related to the fact that it seems to bo the birth site. Nevertheless, with age, fréquentation of the birth site steadily become reduced to functional use related to rutting activities.

8

Effect of observer experience on the monitoring of a mouflon population

72%

Garel M., Cugnasse J. M., Gaillard J. M., Loison A., Santosa Y., Maublanc M. L.

Acta Theriologica

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2005

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tom 50

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nr 1

Analysis of changes in population size can be severely biased when factors related to the acquisition of data, such as differences between observer experience and changes through time in the ability of individual observers to detect animals, are not controlled for. We analysed the effect of observer qualification on the number of groups and individuals observed during two census days of a mouflonOvis gmelini musimon xOvis sp. population. The difference between professional wildlife biologists and volunteers was strong during the census day one (87 groups and 410 mouflons vs 55 and 249 by experienced observers and volunteers, respectively) but decreased significantly on the second day for the number of animals detected (390 vs 292 mouflons by experienced observers and volunteers, respectively). Our result indicates that additional training will enhance reliability of data obtained from volunteers. Given the effect of observer qualification on performance during the census, we recommend to use observers of similar and adequate qualification in population counts.

9

Porownanie wlokien wlosowych okrywy trykow rasy wrzosowka polska i mieszancow wrzosowka x muflon

58%

Binerowska B.

Acta Scientiarum Polonorum. Zootechnica

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2003

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tom 02

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nr 2

25-30

10

Liver flukes in wild ruminants from Slovakia

58%

Iglodyova A., Lazar P., Curlik J., Karolova R., Ciberej J., Bockova E., Strkolcova G.

Annals of Parasitology

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2016

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tom 62

|

nr Suppl.

11

Epizootic situation of mouflon Ovis aries musimon in Lower Silesia on the basis of coproscopic examinations

58%

Bartczak R., Okulewicz A.

Annals of Parasitology

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2014

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tom 60

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nr 4

Coproscopic examinations of mouflons Ovis aries musimon from four forest districts of Lower Silesia performed in spring and autumn from 2012 to 2014 demonstrated the presence of pulmonary nematodes and intestinal parasites, including coccidia of the genus Eimeria. Prevalence of pulmonary nematodes (mainly Muellerius capillaris) amounted to 69.78%, intestinal nematodes – 56.11% and coccidia of the genus Eimeria – 44.6%. The number of oocysts, eggs of intestinal helminths and larvae of pulmonary nematodes was low. Most frequently the parasites occurred in mouflons from the Jugów forest district, which is related to contact with sheep grazed in the area.

12

Seasonal faecal excretion, gut fill, liquid and particle marker retention in mouflon Ovis ammon musimon, and a comparison with roe deer Capreolus capreolus

58%

Behrend A., Lechner-Doll M., Streich W. J., Clauss M.

Acta Theriologica

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2004

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tom 49

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nr 4

Five mouflon [average body mass (BM) 33 kg] and two roe deer (average BM 20 kg) with rumen cannulas were kept in large enclosures under semi-natural conditions and were used for seasonal studies on gastrointestinal tract (GIT) indigestible fill and digesta passage kinetics. As the mouflon were not fully mature, both species had similar digesta volumes in the reticulorumen (RR; mouflon 5.5 ± 1.8% of BM; roe deer 5.4 ± 1.5% of BM); however, the mouflon had lower RR liquid flow rates (15.1 ± 4.3 ml h−1 kg−0.75) than the roe deer (19.2 ± 0.2 ml h−1 kg−0.75), and particle retention in the RR accounted for 68 ± 3% of total GIT retention in the mouflon versus 55 ± 6% in the roe deer. Annual average total GIT retention times for liquids and particles were longer in the mouflon (23.4 ± 0.9 h and 37.9 ± 4.0 h) than in the roe deer (18.4 ± 1.7 h and 22.4 ± 1.9 h). Similarly, annual average RR retention times for liquids and particles were longer in the mouflon (11.9 ± 0.9 h and 25.8 ± 3.3 h) than in the roe deer (8.1 ± 1.7 h and 12.5 ± 2.3 h). The factor of selective particle retention in the RR (retention of particles/retention of liquid) was 2.10 ± 0.09 in the mouflon versus 1.54 ± 0.01 in the roe deer. These observations are in accord with differences in digesta passage characteristics postulated between browsing and grazing ruminants. Total GIT indigestible fill was lower in the mouflon than in the roe deer (10.7 ± 2.1 g kg−1 and 13.3 ± 1.0 g kg−1).

13

Estimation of roe deer Capreolus capreolus and mouflon Ovis aries densities, abundance and habitat use in a mountainous Mediterranean area

58%

Tsaparis D., Katsanevakis S., Stamouli C., Legakis A.

Acta Theriologica

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2008

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tom 53

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nr 1

The abundance, density, and habitat use of roe deerCapreolus capreolus (Linnaeus, 1758) and mouflonOvis aries Linnaeus, 1758 were studied in a confined Mediterranean area in Greece with a dung survey based on the faecal accumulation rate (FAR) technique. Estimated density was modelled with generalized additive models using altitude, habitat type, and slope as potential covariates. Model selection among the set of candidate models was conducted based on their generalized cross-validation score. Roe deer had an estimated mean density of 13.9 ind./km2 and the best model included slope and habitat type as covariates. The mean density of mouflon in the study area was 22.1 ind./km2 and the best model used altitude and habitat type as covariates. For both species, the highest densities were encountered in abandoned cultivations and glades, followed by conifer forests, while the lowest densities were observed in maquis. However, use of open habitats by mouflon was much greater than it was for roe deer. The strong preference of mouflon (a grazer species) for open habitats that were abundant with grasses probably reflected food availability and contrasted with the more diverse habitat use by roe deer (a selective browser).

Ograniczanie wyników

Ram rut-involvement in a hunted population of mouflons

The pineal gland of the red deer male. Histology and ultrastructure with notes on the fallow deer and mouflon pineals

European mouflon [Ovis orientalis musimon Schreber, 1782] in the ecosystem of Lower Silesia

Courtship and behavioral maturation of male mouflons

Are there realistic opportunities to apply cloning and the other reproductive biotechnologies for safeguarding endangered species?

Effects of deworming in mouflons from forest districts in the Pomerania Province, Poland

Seasonal range use by European mouflon rams in medium altitude mountains

Effect of observer experience on the monitoring of a mouflon population

Porownanie wlokien wlosowych okrywy trykow rasy wrzosowka polska i mieszancow wrzosowka x muflon

Liver flukes in wild ruminants from Slovakia

Epizootic situation of mouflon Ovis aries musimon in Lower Silesia on the basis of coproscopic examinations

Seasonal faecal excretion, gut fill, liquid and particle marker retention in mouflon Ovis ammon musimon, and a comparison with roe deer Capreolus capreolus

Estimation of roe deer Capreolus capreolus and mouflon Ovis aries densities, abundance and habitat use in a mountainous Mediterranean area