Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: roe deer population

Sortuj według:

Ogranicz wyniki do:

Local ecotypes of roe deer populations (Capreolus capreolus L.) in relation to morphometric features and fur colouration in the centre of the Iberian Peninsula

100%

Horcajada-Sanchez F. , Barja I.

tom 64

nr 1

The extent of the area occupied by populations of roe deer and the diversity of environments in which it lives, determine the existence of different local forms or ecotypes. In order to characterize the populations of the Guadarrama Mountains in the centre of the Iberian Peninsula we examined the morphology and fur colouration of 154 roe deer (Capreolus capreolus) based on their body size, age and sex. To determine the age of roe deer, we analyzed tooth cementum layers (incisor I1) to observe the growth lines. The remaining individual data (body size, sex and fur colouration) were obtained in the field, from animals hunted in the study area. In adult individuals, the average body weight in males was significantly higher than in females, being these weight ranges similar to those of the Iberian Peninsula and the rest of Europe. Body measurements were positively related to individuals age, but only significant differences in body girth were found between males and females. The analysis of fur colouration of dead specimens showed a high variability with four different ecotypes during the summer coat and not significant differences were found in the body size between individuals with different summer coats. The morphological parameters described in the roe deer of the Guadarrama Mountains do not correspond with the latitudinal gradient as it was indicated for other Spanish populations. However, the existence of Pleistocene refuges in the central mountains of the Iberian Peninsula seems to have provided a high variety of ecotypes in relation to fur colouration in the populations of Guadarrama Mountains.

Management of hunting animals population as breeding work. Part I: Impact of hunting and breeding work on animal conditions

80%

Tajchman K. , Drozd L.

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

2018

tom 57[2]

The paper shows that rational management of game populations is a set of breeding practices. These mainly involve creation of appropriate conditions that will be most beneficial for normal development and reproduction of animals. However, game breeding is considerably more difficult and hunters face problems that differ from those encountered by breeders of domesticated animals. This part is focused on hunting work that can determine and primarily improve the ontogenic quality of animals. Unlike in livestock breeding, the size of the home range and living conditions of game animals can be improved by enrichment of the feed and shelter base, regulation of the population size by culling weak/diseased individuals, and minimization of stress factors. The results confirming the impact of the hunting and breeding treatments are illustrated in a population of roe deer.

W pracy wykazano, że racjonalne gospodarowanie populacjami zwierząt łownych to zespół zabiegów hodowlanych. To przede wszystkim tworzenie odpowiednich warunków, najbardziej korzystnych, odpowiadających w możliwie największym stopniu właściwemu rozwojowi i rozmnażaniu się zwierzyny. Hodowla zwierząt łownych jednak jest o wiele trudniejsza, a myśliwi napotykają się na problemy zupełnie inne niż hodowcy zwierząt udomowionych. W części tej zwrócono uwagę na prace łowieckie, dzięki którym można kształtować, a przede wszystkim poprawiać kondycję osobniczą zwierząt. Porównując hodowlę zwierząt dzikich do udomowionych areały osobnicze zwierząt dzikich można poprawiać poprzez wzbogacanie bazy żerowej i osłonowej, regulowaniu liczebności poprzez odstrzał osobników słabych/chorych czy też minimalizowanie czynników stresogennych. Wyniki potwierdzające wpływ zabiegów łowiecko-hodowlanych przedstawiono na populacji sarny.

The quality of European roe deer [Capreolus c.capreolus L.] and an assessment of breeding and hunting procedures realized in its population in forest divisions located in the Olsztyn District of the Polish Hunting Association

80%

Zalewski D. , Mrozek A.

tom 05

nr 1