scholarly journals Disentangling demographic effects of red deer on chamois population dynamics

2021 ◽  
Author(s):  
Valerio Donini ◽  
Luca Pedrotti ◽  
Francesco Ferretti ◽  
Luca Corlatti
Keyword(s):  
Population Dynamics ◽  
Red Deer ◽  
Demographic Effects

Long-term population dynamics of the red deer and European roe deer at the protected and not-protected areas in Mountain Crimea

2017 ◽  
Vol 7 (4) ◽  
pp. 65-72
Author(s):  
V. N. Shmagol' ◽  
V. L. Yarysh ◽  
S. P. Ivanov ◽  
V. I. Maltsev
Keyword(s):  
Population Dynamics ◽  
Protected Areas ◽  
Red Deer ◽  
Nature Reserve ◽  
Roe Deer ◽  
Precipitation Amount ◽  
Annual Precipitation ◽  
Population Number ◽  
The Impact

<p>The long-term population dynamics of the red deer (<em>Cervus elaphus</em> L.) and European roe deer (<em>Capreolus</em> <em>capreolus</em> L.) at the mountain and forest zone of Crimea during 1980-2017 is presented. Fluctuations in numbers of both species are cyclical and partly synchronous. Period of oscillations in the population of red deer is about 25 years, the average duration of the oscillation period of number of roe deer is 12.3 years. During the fluctuations in the number the increasing and fall in population number of the red deer had been as 26-47 %, and roe deer – as 22-34 %. Basing on the dada obtained we have assumed that together with large-scale cycles of fluctuations in population number of both red deer and roe deer the short cycles of fluctuations in the number of these species with period from 3.5 to 7.5 years take place. Significant differences of the parameters of cyclical fluctuations in the number of roe deer at some sites of the Mountainous Crimea: breaches of synchronicity, as well as significant differences in the duration of cycles are revealed. The greatest deviations from the average values of parameters of long-term dynamics of the number of roe deer in Crimea are noted for groups of this species at two protected areas. At the Crimean Nature Reserve the cycle time of fluctuations of the numbers of roe deer was 18 years. At the Karadag Nature Reserve since 1976 we can see an exponential growth in number of roe deer that is continued up to the present time. By 2016 the number of roe deer reached 750 individuals at a density of 437 animals per 1 thousand ha. Peculiarity of dynamics of number of roe deer at some sites proves the existence in the mountain forest of Crimea several relatively isolated groups of deer. We assumed that "island" location of the Crimean populations of red deer and European roe deer, their relatively little number and influence of permanent extreme factors of both natural and anthropogenic origination have contributed to a mechanism of survival of these populations. The elements of such a mechanism include the following features of long-term dynamics of the population: the reduction in the period of cyclic population fluctuations, while maintaining their amplitude and the appearance of additional small cycles, providing more flexible response of the population to the impact of both negative and positive environmental factors. From the totality of the weather conditions for the Crimean population of roe deer the recurring periods of increases and downs in the annual precipitation amount may have relevance. There was a trend of increase in the roe deer population during periods of increasing annual precipitation.</p>

Modelling the population dynamics of red deer (Cervus elaphus L.) with regard to forest development

1998 ◽  
Vol 108 (1-3) ◽  
pp. 145-153 ◽  
Author(s):  
Vlado Stankovski ◽  
Marko Debeljak ◽  
Ivan Bratko ◽  
Miha Adamič
Keyword(s):  
Population Dynamics ◽  
Cervus Elaphus ◽  
Red Deer ◽  
Forest Development

Temporal changes in key factors and key age groups influencing the population dynamics of female red deer

2000 ◽  
Vol 69 (6) ◽  
pp. 1099-1110 ◽  
Author(s):  
S. D. Albon ◽  
T. N. Coulson ◽  
D. Brown ◽  
F. E. Guinness ◽  
J. M. Pemberton ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Red Deer ◽  
Age Groups ◽  
Temporal Changes ◽  
Key Factors

Alpine landscape and canopy cover from 1973 to 2011: are roe and red deer population dynamics linked?

2017 ◽  
Vol 44 (7) ◽  
pp. 504 ◽  
Author(s):  
Roberta Chirichella ◽  
Andrea Mustoni ◽  
Marco Apollonio
Keyword(s):  
Land Use ◽  
Growth Rate ◽  
Population Dynamics ◽  
Red Deer ◽  
Roe Deer ◽  
Land Use Changes ◽  
Canopy Cover ◽  
Eastern Alps ◽  
Deer Population ◽  
Abundance Indices

Context Land-use change may represent a major driver for wildlife population trends in most ecosystems all over the world. In addition to land abandonment and forest management transformation in remote areas of developed countries, such as the European mountains, the intensification of human activities has, by and large, affected the settlement opportunities for wildlife species. Aims What changes occurred in the structure and extent of land use between 1973 and 2011 in the Central Eastern Alps, Italy? Are the abundance indices of roe deer (Capreolus capreolus) and red deer (Cervus elaphus) driven by these landscape transformations? Is there any relationship between the increase in red deer and the decrease in roe deer abundance? Methods The study was conducted in a 1335-km2 area (Central Eastern Alps, Italy). Through GIS photo interpretation techniques and patch analysis tools, we determined land-use changes between 1973 and 2011. Correlations between environmental modifications and climatic conditions, as well as between roe and red deer abundance indices (i.e. catch per unit effort (CPUE) and hunting bag data, respectively) were investigated for the 1973–2011 period by implementing linear mixed models. Key results The metrics thus calculated revealed a homogenisation of the woodland area and a general landscape simplification. By examining the effects of the climatic factors supposedly affecting population growth rate, roe and red deer trends seemed to be driven also by land-use evolution. Indeed, in the 1973–2011 period a negative trend in the availability of open areas below the tree line (–4.6%) and of agricultural zones (–1.9%) seemed to disfavour roe deer, while a fast increase in woodlands (+7.8%), scrublands (+3.3%) and canopy cover (+7.9%) was reported to be concomitant to red deer range expansion and density increase. Moreover, red deer growth rate impacted on roe deer population dynamics. Conclusions and implications Given the ongoing land-use changes, their effect on roe and red deer population trends and the competition issue between them, these results may help managers to apply an effective adaptive-management planning technique for target locations to keep the ecosystem balanced.

scholarly journals Can we use the young : female ratio to infer ungulate population dynamics? An empirical test using red deer Cervus elaphus as a model

2005 ◽  
Vol 42 (2) ◽  
pp. 361-370 ◽  
Author(s):  
CHRISTOPHE BONENFANT ◽  
JEAN-MICHEL GAILLARD ◽  
FRANÇOIS KLEIN ◽  
JEAN-LUC HAMANN
Keyword(s):  
Population Dynamics ◽  
Cervus Elaphus ◽  
Red Deer ◽  
Empirical Test ◽  
Young Female ◽  
Female Ratio

scholarly journals Population Dynamics of the Roe Deer, Capreolus Capreolus, and the Red Deer, Cervus Elaphus (Artiodactyla, Cervidae), in the Mountain Crimea

2017 ◽  
Vol 51 (4) ◽  
pp. 355-358
Author(s):  
V. M. Smagol ◽  
V. L. Yarish
Keyword(s):  
Population Dynamics ◽  
Cervus Elaphus ◽  
Red Deer ◽  
Roe Deer ◽  
Capreolus Capreolus ◽  
Anthropogenic Pressure ◽  
Defence Mechanism

Abstract Results of the investigations of changes in the number of hoof-animals in the Mountain Crimea in the period from 1980 to 2014 are presented in the article. It is found that the period of the animal numbers change is 7.5 years for red deer and 4.6 years for roe deer. The shortening of the period of the animal numbers change as compared with other populations is a defence mechanism under conditions of a continuous anthropogenic pressure.

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