Wyniki wyszukiwania

1

Evaluation of habitat use of a semi-captive population of Cuvier's gazelles Gazella cuvieri following release in Boukornine National Park, Tunisia

100%

Abaigar T., Cano M., Sakkouhi M.

Acta Theriologica

|

2005

|

tom 50

|

nr 3

Thirteen Cuvier’s gazelles were relocated to a 6-ha acclimatization enclosure in Boukornine National Park (Boukornine NP) in Tunisia, where they are part of a reintroduction project. To determine the degree of adaptation and habitat use under the new conditions, the acclimatization enclosure was divided into 6 sections according to topography, plant cover and plant species in the area. Signs of gazelle activity were coded as feeding site, paths, passages, feces and resting places. Sampling was done in spring, summer and autumn from September 2000 to July 2001. Multivariate analysis using PATN analysis and Χ2 distribution tests were used to analyze the data. Multivariate analysis yielded 5 groups of biotopes according to the above variables. The Χ2 distribution test showed the significant effect of each variable on the presence of signs of gazelles. Cuvier’s gazelles prefer areas with low and west to north facing slopes and scant plant cover; animals are attracted to the proximity of the fence as the limit of their territory and even though the presence of humans does not represent a disturbance, gazelles select areas far (> 50 m) from the supplementary feeding and water supply for their activities.

2

Skulls of Neolithic Eurasian beavers [Castor fiber L.] in comparison with skulls of contemporary beavers from natural biotopes of Wielkopolska Region [Poland]

84%

Komosa M., Frackowiak H., Godynicki S.

Polish Journal of Environmental Studies

|

2007

|

tom 16

|

nr 5

697-704

The present work describes the morphological distance of a cranium between specimens of Castor fiber from Neolithic period and contemporary specimens which live in the same region of Poland. Two well-preserved skulls of Neolithic beavers and 32 skulls of contemporary beavers were available. In order to compare the skulls, first the age of the animals was estimated followed by 22 measurements of each skull. On the basis of Principal Components Analysis it was found that the skull in the beaver changes its dimensions with age. Moreover, a strong positive allometry was found of the external sagittal crest in relation to age. The other craniometric features showed negative allometry. The PCA method also made it possible to determine that the skull of a 3-year old Neolithic beaver is as big as skulls of 4- to 5-year old contemporary ones. The skull of the second Neolithic beaver, a 5-year old, is the largest among skulls of contemporary beavers in its age group.

3

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Aeroponics as a tool in reintroduction of endangered Orchidaceace and Droseraceae species

84%

Banasiuk R., Znaniecka J., Aksmann A., Minasiewicz J., Krolicka A.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

|

2013

|

tom 94

|

nr 3

4

Gene introgression between Gazella subgutturosa and G. marica: limitations of maternal inheritance analysis for species identification with conservation purposes

84%

Murtskhvaladze M., Gurielidze Z., Kopaliani N., Tarkhnishvili D.

Acta Theriologica

|

2012

|

tom 57

|

nr 4

It has recently been suggested that goitered gazelles (Gazella subgutturosa and Gazella marica) have paraphyletic maternal origin, and that the mitochondrial cytochrome b gene fragment can be used for species identification prior to reintroduction of the gazelles. Although there is a large geographic area where the gazelles have intermediate morphology, previous researchers have not inferred any signs of mitochondrial haplotype introgression, and it is thought that the introgression, if it exists, is male-biased. We studied mitochondrial haplotypes of morphologically typical G. subgutturosa from two geographic locations. Goitered gazelles from eastern Turkey, morphologically identical to G. subgutturosa, had haplotypes identical to G. marica. This finding confirms ongoing maternal gene introgression from G. marica to G. subgutturosa. Our suggestion is that there is a natural gene flow between these two nominal species, and morphological characters together with recombinant genetic markers rather than mitochondrial DNA should be used to differentiate among individuals from areas close to the contact zone.

5

Restoration of the Ruddy Shelduck Tadorna ferruginea population in Ascania Nova nature reserve [Southern Ukraine]

84%

Zubko V., Havrilenko V., Semenov N.

Acta Ornithologica

|

2001

|

tom 36

|

nr 1

In the XIX century the Ruddy Shelduck was regarded as a common species in Ukraine. Now it is in the Red Data Book of Ukraine and on the Berne Convention List. In 1885 it appeared in the Ascanian Zoo, and a year later there were 16 birds. Nowadays, in the summer and autumn their numbers range from 700 to 1200. The territorial centre of the population are the zoo ponds and the botanical garden, where 48-65 pairs nest. This semi- wild population has been formed as a result of successive acclimatization measures: forming broods with foster parents (Tadorna ferruginea, Cairina moschata, Anas platyrhynchos), creating artificial nests, regular feeding, and the availability of unfrozen water in the pond. Free-living birds migrate from Ascania Nova to other places, even to distant regions.

6

Assessment of habitat conditions using Self-Organizing Feature Maps for reintroduction/introduction of Aldrovanda vesiculosa L. in Poland

67%

Kosiba P., Mroz L., Kaminski R.

Acta Societatis Botanicorum Poloniae

|

2011

|

tom 80

|

nr 2

The study objects were Aldrovanda vesiculosa L., an endangered species and fifty five water sites in Poland. The aim of the present work was to test the Self-Organizing Feature Map in order to examine and predict water properties and type of trophicity for restoration of the rare plant. Descriptive statistical parameters have been calculated, analysis of variance and cluster analysis were carried out and SOFM model has been constructed for analysed sites. The results of SOFM model and cluster analysis were compared. The study revealed that the ordination of individuals and groups of neurons in topological map of sites are similar in relation to dendrogram of cluster analysis, but not identical. The constructed SOFM model is related with significantly different contents of chemical water properties and type of trophicity. It appeared that sites with A. vesiculosa are predominantly distrophic and eutrophic waters shifted to distrophicity. The elevated model showed the sites with chemical properties favourable for restoration the species. Determined was the range of ecological tolerance of the species in relation to habitat conditions as stenotopic or relatively stenotopic in respect of the earlier accepted eutrophic status. The SOFM appeared to be a useful technique for ordination of ecological data and provides a novel framework for the discovery and forecasting of ecosystem properties constituting a validation of the SOFM method in this type of studies.

7

Wykorzystanie form dzikich w hodowli traw oraz możliwość reintrodukcji gatunków marginalnych

67%

Martyniak D., Martyniak J.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2010

|

tom 555

Badania pozwoliły na ustalenie lokalizacji pochodzenia materiałów wyjściowych polskich odmian traw, wyhodowanych wyłącznie z dzikich ekotypów. Stanowiły one aż 44% wszystkich odmian wyhodowanych w XX wieku w Polsce. Z pozostałych odmian krajowych ponad połowa również częściowo pochodzi z ekotypów, których geny znalazły się w ich składzie bezpośrednio lub pośrednio z wcześniejszych odmian. Ustalono i naniesiono na mapie sześć regionów i czternaście konkretnych miejscowości, z których pochodziły dzikie genotypy tworzące dawne odmiany, głównie kostrzew, wiechlin i życic. Wyznaczenie tych terenów może być wykorzystane również obecnie do eksploracji ekspedycyjnych w celu pozyskania wartościowych, dzikich genotypów traw. Dokonano również próby reintrodukcji ośmiu gatunków traw marginalnych, wycofanych wcześniej z polskiego rejestru oraz wstępnej hodowli z ekotypów czterech nowych gatunków dzikich o charakterze proekologicznym, w celu zwiększenia bioróżnorodności siedlisk łąkowych. W obu grupach gatunków uzyskano pozytywne wyniki odtwarzania i generatywnego rozmnażania niemal wszystkich badanych form. Pewne utrudnienie w technologii ich nasiennictwa stanowi osypywanie się nasion, występujące u połowy gatunków oraz niska zdolność kiełkowania, zwłaszcza u Puccinellia distans i Phalaris arundinacea.

8

Redox status of the West Pomerania rivers and streams selected for settlement with salmon (Salmo salar L.) and sea trout fry (Salmo trutta morpha trutta L.) - results of research in winter

67%

Poleszczuk G., Domagala J.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

|

2003

|

tom 06

9

Polskie rosliny chronionre i ginace w kolekcjach Wroclawskiego Ogrodu Botanicznego

67%

Radziuk M., Wojcik G., Lenard E.

Prace Ogrodu Botanicznego Uniwersytetu Wrocławskiego

|

1996

|

tom 03

377-385

10

Comparative behaviour analysis of some colubrids with reference to suitability of captive bred snakes for reintroduction to natural habitat

67%

Zyczynski A., Nowak Z.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

|

2013

|

tom 52

A sample of newly hatched American colubrids, divided according to their level of domestication, understood herewith as the generation history in captivity, was tested in an open field test (OFT) for degree of activity and confidence in open terrain and in confrontation with individuals of such species as Pantherophis guttatus and Lampropeltis getula splendida as well as L. g. californiae, in order to compare their antagonistic and feeding behaviour reactions. The cluster comparison of defence reactions revealed no effect of domestication (many generation in captivity) in the face of potential danger. Even albino phase Kingsnakes, considered to be the form of this species most affected by captivity (altered genome), maintained their natural feeding response. The degree of activity in OFT conditions was seen to decrease with the snakes' age. Thus it was demonstrated that captive specimens bred in terrariums may be considered a gene bank for ex situ conservation strategy. However it is recommended that specimens as young as possible should be used in reintroduction to natural habitat, as these will respond most faithfully to the pressure of natural selection, based on their behavioural variation not supressed by apathy caused by captivity.

11

Acclimation of silver fir [Abies alba Mill.] seedlings to irradiance conditions under canopies of different tree species in Sudety Mts. [Southern Poland]

67%

Robakowski P., Wyka T.

Polish Journal of Ecology

|

2003

|

tom 51

|

nr 3

To determine the influence of tree canopy composition on growth and physiological performance of silver fir (Abies alba Mill.) in Karkonoski National Park (Sudety Mountains. Southern Poland). three-year-old fir seedlings were planted in five forest stands dominated by Betula pendula. Fogus sylvatica. Larix decidua. Picea abies or Pinus sylvestris. The stands differed in canopy openness such that young fir plants experienced drastically different light environments. After three years of acclimation to site conditions, length of shoots, seasonal changes in chlorophyll a fluorescence parameters, and the contents of chlorophyll, carotenoids and nutrients in the needles were studied to evaluate the seedling performance. Growth and photosynthetic characteristics of the young seedlings responded strongly to local light conditions. The lengths of leader shoot and twigs of the upper whorl reflected variation in canopy openness during the growing season and were highest under Larix. The potential quantum yield of photosystem II (Fv/Fm) showed a strong depression in the spring, especially under the leafless canopies of Betula and Fagus, probably because of the occurrence of low air temperatures. Later in the season Fv/Fm showed substantial recovery in all stands. Effective quantum yield ΦPSII measured under actinic light also showed a growing trend throughout the season with the lowest levels noted in the spring, particularly under Fagus and Betula. Fluorescence quenching revealed complex seasonal behaviour with little obvious relationship with stand illumination, except for consistently low value of photochemical quenching, and immediate or high nonphotochemical quenching under the dark Picea canopy, probably reflecting photoprotective acclimation to sunflecks. Although needle chlorophyll content showed no relationship to ambient light, the ratio of carotenoids to chlorophyll was positively linked to canopy openness suggesting the existence of leaf photoprotection that evaded detection by quenching analysis. Nutrient contents in needles depended on site conditions. In the light-transparent Larix stand, the fir needles were strongly depleted in Mg and Ca. Overall, however, all fir plants from experimental plots had much lower needle nutrient content than nursery-raised plants. Needle chlorosis found in Betula and Pinus stands was, however, not caused by macronutrient deficiencies. Considering all variables, conditions most conducive for fir growth and good vigor were found under larch and pine canopies where light penetration was intermediate to high. In contrast, the poorest conditions were found in the Betula stand, where high light penetration in the spring was followed by shading of firs during the growing season.

12

The use of space by translocated edible dormice, Glis glis [L.], at the site of their original capture and the site of their release: radio-tracking method applied in a reintroduction experiment

67%

Jurczyszyn M.

Polish Journal of Ecology

|

2006

|

tom 54

|

nr 3

A study was made of the use of space by two groups (each of 6 animals) of adult edible dormice (G. glis) at the sites of their origin and where they were released. The reintroduction took place in Szczeciński Landscape Park (north-western Poland; 53°17’N, 14°46’E). The source sites for the animals were in the Sie rakowski Landscape Park (western Poland; 52°38’N, 16°07’E) and a nature reserve “Buczyna Szprotawska” in south-western Poland (51°30’N, 15°40’E). All three sites had dense and extensive mixed forests. At release and source sites, dormice were radio-tracked during 10 successive nights between 20.00 and 05.00 at 1-hour intervals. At the source sites, the mean distance travelled per night and mean home range (95% Minimum Convex Polygon) (MCP) tended to be larger in males than in females but not significantly. At the release sites, the mean distance travelled per night and mean home range were significantly larger in females than in males. The mean distance travelled per night by males and their mean home range size did not differ significantly between source and release sites (although distances were larger at the source sites (source: 458 m; release: 265 m) and home ranges larger at the release sites (source: 1.3 ha; release: 1.8 ha). In contrast, the mean female distance travelled per night (source: 214 m; release: 404 m) and mean home range (source: 0.3 ha; release: 3.5 ha) were significantly larger at the release site than at the source sites.

13

Efekty reintrodukcji bobra europejskiego w centralnej czesci polskich Karpat

51%

Kubacki T., Wajdzik M.

Acta Scientiarum Polonorum. Silvarum Colendarum Ratio et Industria Lignaria

|

2002

|

tom 01

|

nr 2

25-36

Ograniczanie wyników

Evaluation of habitat use of a semi-captive population of Cuvier's gazelles Gazella cuvieri following release in Boukornine National Park, Tunisia

Skulls of Neolithic Eurasian beavers [Castor fiber L.] in comparison with skulls of contemporary beavers from natural biotopes of Wielkopolska Region [Poland]

Aeroponics as a tool in reintroduction of endangered Orchidaceace and Droseraceae species

Gene introgression between Gazella subgutturosa and G. marica: limitations of maternal inheritance analysis for species identification with conservation purposes

Restoration of the Ruddy Shelduck Tadorna ferruginea population in Ascania Nova nature reserve [Southern Ukraine]

Assessment of habitat conditions using Self-Organizing Feature Maps for reintroduction/introduction of Aldrovanda vesiculosa L. in Poland

Wykorzystanie form dzikich w hodowli traw oraz możliwość reintrodukcji gatunków marginalnych

Redox status of the West Pomerania rivers and streams selected for settlement with salmon (Salmo salar L.) and sea trout fry (Salmo trutta morpha trutta L.) - results of research in winter

Polskie rosliny chronionre i ginace w kolekcjach Wroclawskiego Ogrodu Botanicznego

Comparative behaviour analysis of some colubrids with reference to suitability of captive bred snakes for reintroduction to natural habitat

Acclimation of silver fir [Abies alba Mill.] seedlings to irradiance conditions under canopies of different tree species in Sudety Mts. [Southern Poland]

The use of space by translocated edible dormice, Glis glis [L.], at the site of their original capture and the site of their release: radio-tracking method applied in a reintroduction experiment

Efekty reintrodukcji bobra europejskiego w centralnej czesci polskich Karpat