Wyniki wyszukiwania

1

Post-fledging dispersal of British Pied Wagtails [Motacilla alba yarrellii]: a re-appraisal, with comparative notes

100%

Dougall T. W.

The Ring

|

1995

|

tom 17

|

nr 1-2

2

The diet of field voles Microtus agrestis at low population density in upland Britain

84%

Wheeler P.

Acta Theriologica

|

2005

|

tom 50

|

nr 4

483-492

Studies on field volesMicrotus agrestis Linnaeus, 1758 in lowland grasslands have shown them to be unselective grazers. The diet of the field vole in upland Britain was investigated using feeding trials with four of the dominant British upland monocots,Molinia caerulea,Nardus stricta, Deschampsia flexuosa and Eriophorum vaginatum. The suitability of faecal analysis was assessed and then used to analyse the diet of wild voles from faecal samples. Percentages of plant species in the faeces were compared to percentages on the ground in sites dominated byMolinia caerulea, Eriophorum vaginatum,Nardus stricta andCalluna vulgaris. Significant preferences for the grassDeschampsia flexuosa were observed in feeding trials and in the wild while the sedgeEriophorum vaginatum was avoided in both. There was no clear preference forMolinia caerulea andNardus stricta. Preference for plant species was related to palatability and nutrient content. The low nutrient conditions in British uplands mean that voles that live in these environments must be selective feeders to maximise nutrient intake.

3

Algal changes during the Holocene: records from a maritime, montane region in Britain

84%

Haworth E. Y.

Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu

|

1990

|

tom 43

4

A 13-year population study of the edible dormouse Glis glis in Britain

84%

Morris P. A., Morris M. J.

Acta Theriologica

|

2010

|

tom 55

|

nr 3

279-288

Edible dormice Glis glis Linnaeus, 1766 were monitored from 1996–2008 inclusive. This has been the first population study of this non-native species since its introduction to Britain in 1902. Dormice were present in nest boxes from May or June until October or November. Numbers recorded varied greatly from year to year, and breeding failure occurred in 6 of the 13 years, apparently in response to environmental cues such as food availability. Litter sizes declined with growth of the young but some of the largest litters resulted from females aggregating their offspring. Males used more nest boxes than females, some of whom showed clear site fidelity from year to year. Survival rates were high and some individual lifespans exceeded 9 years. Longevity, compensating for periodic reproductive failure, and an extremely short active season, make the life history of edible dormice exceptional among small rodents, perhaps unique. Population density, rate of population increase and evidence for local emigration in non-breeding years are discussed, issues of particular significance in populations of recently-established introduced species such as this.

5

The decline of the Bullfinch Pyrrhula pyrrhula in Britain: is the mechanism known?

84%

Siriwardena G. M., Freeman S. N., Crick H. Q. P.

Acta Ornithologica

|

2001

|

tom 36

|

nr 2

The Bullfinch has declined in Britain and elsewhere in Europe, but definitive evidence about the cause and demographic mechanism has yet to be published. We review current knowledge, concentrating on analyses of demography, and present new integrated population modelling analyses designed to reveal the demographic changes most important in the decline. It is likely that changes in brood size and clutch size have not been important and our models suggest that the decline can be explained without invoking variation in numbers of breeding attempts or post-fledging survival rates. However, although changes in the egg period daily nest failure rate provide the best explanation for population change during the years of steepest decline, nestling period failures, adult survival and first-year survival could all have been equally important. Egg period nest failure rates have been higher in the preferred habitat, woodland, than in farmland and have fallen over time in farmland, where a larger decline has occurred (65% versus 28%), arguing against a causal link with abundance. Despite evidence for a negative effect of agricultural intensification on Bullfinch presence, little evidence exists clearly linking any demographic rate to environmental change and agricultural land-use has had little effect on nest failure rates. Predation appears to have had no significant impact. Future work should focus on contemporary investigations of the importance of hedgerow structure and woodland understorey vegetation.

6

The use of dormouse Muscardinus avellanarius nest boxes by two species of Apodemus in Britain

84%

Marsh A. C. W., Morris P. A.

Acta Theriologica

|

2000

|

tom 45

|

nr 4

The occupancy of Muscardinus auellanarius (Linnaeus, 1758) nest boxes by Apodemus flauicollis (Melchior, 1834) and A. sylvaticus (Linnaeus, 1758) was studied over a six-year period from five sites in southern Britain. A. flauicollis was a regular visitor to nest boxes, occupying them more frequently than A, sylvalicus or any other small mammal. Litters of A. flauicollis were uncommon in nest boxes suggesting these boxes were rarely used for breeding. It seems likely that nest boxes form temporary nesting places for individuals, pairs or small communal groups. A. flauicollis sometimes take over nest hoxes occupied by M. avellanarius, usually constructing their own nests and sometimes removing old nest material. M. avellanarius may avoid nest boxes occupied by A. flauicollis earlier in the same year. Boxes favoured by M. auellanarius in one year tended to be reselected by them in the following year, but no such trend was apparent in box selection by A. flauicollis. Overall, there was little evidence to suggest that the presence of A. flauicollis had a significant impact on M. avellanarius occupancy of nest boxes.

7

Pre-Quaternary geomorphological history and geoheritage of Britain

67%

Migon P., Goudie A.

Quaestiones Geographicae

|

2012

|

tom 31

|

nr 1

8

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Upper Ordovician brachiopods from Poland and Britain

67%

Temple J. T.

Acta Palaeontologica Polonica

|

1965

|

tom 10

|

nr 3

The brachiopods of the Upper Ordovician Hirnantia fauna from the Holy Cross Mountains of Poland (Góry Świętokrzyskie) are described. The fauna, which includes one new genus (Plectothyrella) and four new species (Philhedra? stawyensis, Hirnantia? kielanae, Platymena? polonica, Plectothyrella platystrophoides), is compared with occurrences from North Wales and the English Lake District.

9

Occurrence of Macroneomys brachygnathus Fejfar, 1966 in the British Middle Pleistocene, with a review of the status of Beremendia fissidens [Petenyi, 1864] in Britain [Mammalia, Lipotyphla Soricidae]

67%

Harrison D. L., Parfitt S. A., Stuart A. J.

Acta Zoologica Cracoviensia. Ser.A Vertebrata

|

2006

|

tom 49A

|

nr 1-2

10

Systematic status of Kennard's shrew [ Sorex kennardi Hinton, 1911, Insectivora: Soricidae ]: a study based on British and Polish material

67%

Harrison D. L.

Acta Zoologica Cracoviensia

|

1996

|

tom 39

|

nr 1

11

Place-name and archaeological evidence on the recent history of birds in Britain

67%

Yalden D. W.

Acta Zoologica Cracoviensia

|

2002

|

tom 45

|

nr Spec.issue

Ograniczanie wyników

Post-fledging dispersal of British Pied Wagtails [Motacilla alba yarrellii]: a re-appraisal, with comparative notes

The diet of field voles Microtus agrestis at low population density in upland Britain

Algal changes during the Holocene: records from a maritime, montane region in Britain

A 13-year population study of the edible dormouse Glis glis in Britain

The decline of the Bullfinch Pyrrhula pyrrhula in Britain: is the mechanism known?

The use of dormouse Muscardinus avellanarius nest boxes by two species of Apodemus in Britain

Pre-Quaternary geomorphological history and geoheritage of Britain

Upper Ordovician brachiopods from Poland and Britain

Occurrence of Macroneomys brachygnathus Fejfar, 1966 in the British Middle Pleistocene, with a review of the status of Beremendia fissidens [Petenyi, 1864] in Britain [Mammalia, Lipotyphla Soricidae]

Systematic status of Kennard's shrew [ Sorex kennardi Hinton, 1911, Insectivora: Soricidae ]: a study based on British and Polish material

Place-name and archaeological evidence on the recent history of birds in Britain