scholarly journals Inventarizační malakozoologický výzkum PR Bažantnice u Pracejovic (Jižní Čechy, okres Strakonice) [Malacozoological inventory of the Bažantnice u Pracejovic Nature Reserve (Southern Bohemia, Strakonice District)]

2003 ◽  
Vol 2 ◽  
pp. 31-36
Author(s):  
Jaroslav Čáp Hlaváč
Keyword(s):  
Nature Reserve ◽  
Aquatic Habitats ◽  
River Region ◽  
Molluscan Fauna ◽  
Geographical Position ◽  
Woodland Communities

Data about Recent molluscan fauna of the Bažantnice u Pracejovic Nature Reserve are given. Altogether 32 species (27 terrestrial, 5 freshwater) were recorded. The Nature Reserve (geographical position see Fig. 1) represents a fragment of well-preserved alluvial woodland in the middle Otava River region. Woodland communities consisting of species with various relations to moisture of habitats dominate terrestrial molluscan fauna. The elements of aquatic habitats are poorly represented while open grounds species totally absent.

scholarly journals Inventarizační malakozoologický výzkum PR Bažantnice u Pracejovic (Jižní Čechy, okres Strakonice) [Malacozoological inventory of the Bažantnice u Pracejovic Nature Reserve (Southern Bohemia, Strakonice District)]

2003 ◽  
Vol 2 ◽  
pp. 31-36
Author(s):  
Jaroslav Čáp Hlaváč
Keyword(s):  
Nature Reserve ◽  
Aquatic Habitats ◽  
River Region ◽  
Molluscan Fauna ◽  
Geographical Position ◽  
Woodland Communities

Data about Recent molluscan fauna of the Bažantnice u Pracejovic Nature Reserve are given. Altogether 32 species (27 terrestrial, 5 freshwater) were recorded. The Nature Reserve (geographical position see Fig. 1) represents a fragment of well-preserved alluvial woodland in the middle Otava River region. Woodland communities consisting of species with various relations to moisture of habitats dominate terrestrial molluscan fauna. The elements of aquatic habitats are poorly represented while open grounds species totally absent.

The Dynamics of Callitris columellaris/Eucalyptus albens Communities Along the Snowy River and Its Tributaries in South-Eastern Australia

1990 ◽  
Vol 38 (4) ◽  
pp. 403 ◽  
Author(s):  
KA Claytongreene ◽  
DH Ashton
Keyword(s):  
Current Distribution ◽  
Numerical Classification ◽  
South Eastern ◽  
River Region ◽  
Eastern Australia ◽  
Germination Behaviour ◽  
Eucalyptus Albens ◽  
Woodland Communities ◽  
South Eastern Australia

The vegetation in the rain shadow areas of the Snowy River region was studied. Five distinct woodland communities were recognised from a numerical classification, a community dominated by C. columellaris at lower altitudes on north and west aspects, three mixed C. columellaris/E. albens communities which are also aspect and altitude dependent, and a higher altitude, cool aspect, E. albens dominated community. Although C. columellaris and E. albens occupy separate niches, they compete strongly. Contrasting dispersal and germination behaviour between the two species may explain the current distribution and structure of these woodlands.

The Rediscovery and Distribution of Rumex drummondii (Polygonaceae) in South-Western Australia

1995 ◽  
Vol 43 (4) ◽  
pp. 397 ◽  
Author(s):  
JK Scott ◽  
PB Yeoh
Keyword(s):  
Nature Reserve ◽  
Vascular Plant ◽  
Search Theory ◽  
Biological Control Agents ◽  
Weed Species ◽  
North West ◽  
River Region ◽  
Weedy Species ◽  
Road Verges ◽  
Western Australian

Rumex drummondii Meisn., a south-western Australian endemic vascular plant species recorded from widely separated localities, had not been collected for 46 years and was considered possibly extinct. The methods developed from search theory, which has been used for finding lost people or objects, were applied to finding R. drummondii, starting from previous records. Eleven populations of the species were discovered within a 50 km radius in the Kalgan River and Manypeaks region. A disjunct population of six plants was found in 1992 in a parking area at a crossing of the Moore River, 480 km north north west of the others, but had disappeared by 1994. Surveys in the Gingin Brook and Moore River region and between Kalannie and Kulja, another disjunct record, failed to find further plants. The species occupies temporarily wet depressions, lake edges and roadside excavations and dam edges protected from grazing by sheep; habitats also occupied by congeneric weedy species. The species occurs on road verges and farmland and is known from one nature reserve. The rediscovery of R. drummondii enables it to be included in the assessment of potential biological control agents for related weed species in the genera Emex and Rumex.

scholarly journals Měkkýši NPR Voděradské bučiny [Molluscs of the Voděradské Bučiny national reserve]

2008 ◽  
Vol 7 ◽  
pp. 93-97 ◽  
Author(s):  
Lucie Juřičková
Keyword(s):  
Czech Republic ◽  
Nature Reserve ◽  
Beech Forest ◽  
Large Complex ◽  
Mollusc Species ◽  
Molluscan Fauna ◽  
Molluscan Assemblage

This paper brings a research of molluscan fauna of the Voděradské Bučiny, an important Nature Reserve near Jevany (Central Bohemia, Czech Republic). Altogether, 38 mollusc species have been recorded in the large complex of natural beech forest on the granite background. Rare woodland species Daudebradia rufa and Vertigo substriata were recorded here. Voděradské Bučiny reserve can be used as a model example of natural molluscan assemblage of acidic beech forest.

scholarly journals Prales NPR Mionší – malakozoologický ráj v Beskydech [Virgin forest of the Mionší National Nature Reserve – a malacological Eden in the Beskydy Mts (S Moravia, Czech Republic)]

2006 ◽  
Vol 5 ◽  
pp. 18-24
Author(s):  
Michal Horsák ◽  
Jiří Novák ◽  
Michal Novák
Keyword(s):  
Czech Republic ◽  
Nature Reserve ◽  
The Czech Republic ◽  
Forest Reserves ◽  
Virgin Forest ◽  
Mountain Habitats ◽  
Mollusc Species ◽  
Molluscan Fauna ◽  
Forest Mountain ◽  
High Share

The results of a more than 50 years lasting malacological survey in the Mionší NNR are published here. The virgin forest of Mionší is one of the most important forest reserves in the Czech Republic and it presents the most preserved nature of the forest mountain habitats in the Beskydy Mts. Altogether, 62 mollusc species have been recorded there and we encountered 58 of them during 1998–2005. The molluscan fauna as a whole is characteristic for its high share of Carpathian species. Some of them reach a western limit of their occurrence there (e.g. Vestia gulo). The presence of virgin forest inhabitants (Macrogastra latestriata, Bulgarica cana, Acicula parcelineata) is of prime importance. Macrogastra latestriata, an index species of climatic Holocene optimum, has its largest population within the Czech Republic here.

scholarly journals Súhrn výsledkov malakologických výskumov v NPR Šúr (1918–2005) [Results of malacological investigations of the Šúr National Nature Reserve during 1918–2005]

2007 ◽  
Vol 6 ◽  
pp. 22-28
Author(s):  
Tomáš Čejka ◽  
Libor Dvořák
Keyword(s):  
Nature Reserve ◽  
Forest Steppe ◽  
Target Area ◽  
Drainage Ditch ◽  
Central European ◽  
Arion Lusitanicus ◽  
National Nature Reserve ◽  
Mollusc Species ◽  
Molluscan Fauna ◽  
Hygrophilous Species

The present paper summarizes all data on molluscan fauna from the Šúr National Nature Reserve between 1918–2005. It represents the largest Central-European remaining area of the autochthonous virgin alder swamp wood lying in a low basin (Carici elongatae-Alnetum Swickerath, 1933). Adjacent protected biotopes (flooded meadows, thermophilous Pannonian oak woods, forest-steppe-like shrub formations, drainage ditch and fishpond) were also surveyed. Altogether, 82 species in the target area were found during 1918–2005. In total we found 38 mollusc species (13 freshwater) in six biotopes in 2005; 24 species (7 freshwater) in alder wood; woodland and hygrophilous species were the most numerous. Presence of Viviparus acerosus, Anisus leucostoma, Pseudanodonta complanata, and Pisidium amnicum is dubious. Seven species new for the reserve were found (Carychium tridentatum, Arion lusitanicus, Deroceras rodnae, Cochlicopa nitens, Vertigo antivertigo, Cochlicopa lubricella, and Potamopyrgus antipodarum).

Functional significance of preserved color patterns of mollusks from the Gosport Sand (Eocene) of Alabama

1988 ◽  
Vol 62 (01) ◽  
pp. 83-87 ◽  
Author(s):  
Patricia H. Kelley ◽  
Charles T. Swann
Keyword(s):  
Functional Morphology ◽  
Functional Significance ◽  
Intraspecific Variability ◽  
Color Pattern ◽  
Color Patterns ◽  
Historical Factors ◽  
Life Mode ◽  
Molluscan Fauna ◽  
Excellent Preservation ◽  
Architectural Constraints

The excellent preservation of the molluscan fauna from the Gosport Sand (Eocene) at Little Stave Creek, Alabama, has made it possible to describe the preserved color patterns of 15 species. In this study the functional significance of these color patterns is tested in the context of the current adaptationist controversy. The pigment of the color pattern is thought to be a result of metabolic waste disposal. Therefore, the presence of the pigment is functional, although the patterns formed by the pigment may or may not have been adaptive. In this investigation the criteria proposed by Seilacher (1972) for testing the functionality of color patterns were applied to the Gosport fauna and the results compared with life mode as interpreted from knowledge of extant relatives and functional morphology. Using Seilacher's criteria of little ontogenetic and intraspecific variability, the color patterns appear to have been functional. However, the functional morphology studies indicate an infaunal life mode which would preclude functional color patterns. Particular color patterns are instead interpreted to be the result of historical factors, such as multiple adaptive peaks or random fixation of alleles, or of architectural constraints including possibly pleiotropy or allometry. The low variability of color patterns, which was noted within species and genera, suggests that color patterns may also serve a useful taxonomic purpose.

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