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98 results for “roe deer”
Data from: Born in heterogenous landscapes: birth timing, body mass and growth of roe deer (Capreolus capreolus) fawns in contrasting habitats
<p>Although the widespread effects of global change impact almost all ecosystems, we lack a detailed understanding of how wildlife that thrive in human-dominated environments are able to adjust their life history to modifications in land use of their natural habitat. In particular, spatial variation in environmental conditions is predicted to influence development during the crucial early life phase, with marked impacts on individual performance and population dynamics for long-lived species. Large herbivores such as roe deer (<em>Capreolus capreolus</em>), a synanthropic species, have increased substantially in number and distribution over the last half century across Europe. Roe deer have been particularly successful, gradually colonizing agricultural landscapes to cope with a global warming-driven phenological mismatch in their natural forest habitat. However, to date, little is known about how habitat heterogeneity impacts their demographic performance in this heavily human-impacted environment. Specifically, we predicted that fawns born in predominantly cultivated local habitats would achieve faster early development due to the food subsidies obtained by their mothers from agricultural crops. Contrary to our expectations, fawns in semi-natural forest habitats were around 10% heavier at birth than those born in more mixed (by 0.163 ± 0.058 kg) and open (by 0.169 ± 0.006 kg) agricultural habitats. However, all fawns subsequently grew at a similar average rate (0.148 ± 0.058 kg/day), irrespective of their habitat. This habitat-dependent variation in birth mass appeared to be driven by reproductive phenology, as i) early-born fawns were heavier than late-born fawns, and ii) mothers living in the forest gave birth around 10 days earlier than those living in the mixed and open habitats. As natural habitats become increasingly scarce and fragmented due to the activities of humans, the prospects for many wild populations will depend on their ability to subsist in the heavily modified habitats of anthropogenic landscapes.</p>
Evisceration residues from hunted roe deer as a resource for necrophagous insect fauna in the Black Forest, Germany: a preliminary study
<p>This dataset is used to investigate if evisceration residues of roe deer are used as a resource by necrophagous insects. Pit fall traps baited with eviceration residues, entire carcasses or unbaited were used to sample invertebrates. </p>
ASreml code and Data from the study "Between-population differences in the genetic and maternal components of body mass in roe deer"
<p>This repository contains the source code (ASremL input files) and the data used to perform the QG analyses (univariate, bivariate, random regression animal models) in the study "Between-population differences in the genetic and maternal components of body mass in roe deer". Quéméré E et al.</p> <p> </p>
Data from: Who is taking our roe deer's breath away? – Prevalence and promotive factors of lung parasites in roe deer (Capreolus capreolus) in southeast Germany
<p>The existence of bronchopulmonary nematodes in German roe deer (<em>Capreolus capreolus</em>) is well documented, with two types of lung parasites that have been described previously (<em>Dictyocaulus capreolus </em>and<em> Varestrongylus capreoli)</em>. However, little is known about the impact of these parasites on their host animal or which parameters influence outbreak and intensity of infection. The aim of this study was to obtain new information on the relevance of factors such as season, environmental conditions or age, sex, and body mass of the infected roe deer. To obtain our results, the respiratory tracts of 762 roe deer from south-eastern Germany were examined.</p> <p>In the sample, 42.5 % of roe deer were infested with <em>V. capreoli</em> and 14.0 % with <em>D. capreolus</em>, 51.3 % of animals were completely free of lung parasites. Testing for influencing variables, our regression models found both sex and age of the roe deer to statistically influence infestation, with male sex and younger age correlating with both stronger infestation and higher infestation rates. Accordingly, in male animals, the infestation rates with <em>V. capreoli</em> and <em>D. capreolus</em> (45.1 % and 20.1 %) were higher than in females (39.4 % and 8.0 %).</p> <p>The overall infestation rate of juvenile animals was remarkably higher (73 %) than those of sub-adults (38.3 %) or adults (28.4 %).</p> <p>Across all age groups, infested animals showed lower body weights compared to non-infested animals. According to our multiple linear regression model Roe deer infected with <em>D. capreolus</em> on average weighed 0.65 kg less than their healthy counterparts, in case of <em>V. capreoli</em> 0.72 kg less on average. While the burden on the well-being of infested animals can only be assumed, these concrete figures (reduced body weight in infested compared to healthy animals) demonstrate the economic damage lung parasites cause to meat harvesting from bagged roe deer.</p>
Fig. 1 in Epidemiological Characteristics Of Cephenemyia Stimulator (Clark, 1815) Larval Infestation In European Roe Deer (Capreolus Capreolus) In Hungary
Fig. 1. Monthly dynamics of second-stage (L2) and third-stage (L3) larvae
Figure 1 in Deer on the railway line: spatiotemporal trends in mortality patterns of roe deer
Figure 1. Location of 4 selected railway sections in the Czech Republic.
Fig. 2 in First record of chronic Fascioloides magna infection in roe deer (Capreolus capreolus)
Fig. 2. Flukes' migratory paths with excessive hemorrhages.
An unusual predator-prey system including Iberian lynx and roe deer
<p><span>The Iberian lynx (<em>Lynx pardinus</em>) is a recently recovering felid native to the Iberian Peninsula. This specialist relies on European wild rabbits (<em>Oryctolagus cuniculus</em>) as its bulk prey. Occasionally however, Iberian lynxes can prey on ungulates. New situations emerge in the context of ongoing Iberian lynx recovery and roe deer (<em>Capreolus capreolus</em>) expansion. The capacity of Iberian lynx to influence roe deer dynamics is unknown. We addressed this gap combining camera trapping, noninvasive genetics, and pathology on a site where a saturated Iberian lynx population coincides with a significant roe deer population. Lynx and roe deer detections were not spatially correlated. By contrast, lynx detections were correlated with rabbit detections. We estimated lynx density and roe deer density at 0.167±0.042 lynx/km<sup>2</sup> (SCR models) and 3.55±2.26 roe deer/km<sup>2</sup> (REM method), respectively. <span> </span>Roe deer fawn recruitment was low as the proportion of fawns per adult female was 23%. We detected roe deer DNA in two of 15 lynx feces. One freshly dead adult female roe deer was found by gamekeepers. Two CTs immediately set up at the presumed kill site and kept activated for eight hours recorded three visits by a collared adult female Iberian lynx. The carcass presented lesions compatible with lynx predation. Thus, we compiled CT-derived, genetic, and pathological evidence confirming that Iberian lynxes prey on roe deer. Iberian lynx predation on roe deer is probably sporadic. However, predation has a significant effect on roe deer dynamics in the study site, impeding normal fawn recruitment and the establishment of a harvestable population. Our findings have implications for hunter attitudes, game management and lynx conservation.</span></p>
Parturition date of roe deer in Baden-Württemberg (Southern Germany) 1972/2019
<p>The table contains information about each parturition date. The columns read as: 1) the year were the offspring was born, 2) the sex of the offspring (m- male, f – female), 3) the height above sea level (m), 4) the parturition date (Julian date)<br> <br> Data of the table was used/published in the following article/manuscript: Hagen, Robert; Ortmann, Sylvia; Elliger, Andreas; Arnold, Janosch, <strong>Advanced roe deer (Capreolus capreolus) parturition date in response to climate change</strong></p>
Roe deer microsatellite genotype data
<p>In the early 1800s, the European roe deer (<em>Capreolus capreolus</em>) was probably extirpated from Switzerland, due to overhunting and deforestation. After a federal law was enacted in 1875 to protect lactating females and young, and limiting the hunting season, the roe deer successfully recovered and recolonised Switzerland. In this study, we use mitochondrial DNA and nuclear DNA markers to investigate the recolonisation and assess contemporary genetic structure in relation to broad topographic features, in order to understand underlying ecological processes, inform future roe deer management strategies and explore the opportunity for development of forensic traceability tools. The results concerning the recolonisation origin support natural, multidirectional immigration from neighbouring countries. We further demonstrate that there is evidence of weak genetic differentiation within Switzerland among topographic regions. Finally, we conclude that the genetic data support the recognition of a single roe deer management unit within Switzerland, within which there is a potential for broad scale geographic origin assignment using nuclear markers to support law enforcement.</p>
Data for: Use of viscera from hunted roe deer by vertebrate scavengers in summer in central European mountainous mixed forest
<p><span>Carrion is a valuable resource in forests, providing sustenance for vertebrate and invertebrate scavenger communities and contributing to ecosystem functions, such as nutrient cycling. Intensive ungulate hunting, and thereby extraction of carcasses, removes large quantities of potential carrion from the system, denying a valuable resource from scavenger fauna. It may be possible to reduce the loss and negative consequences to forest biodiversity by retaining evisceration residues from hunted deer, where full carcasses cannot be retained. However, what roll evisceration residues play as a resource for scavengers in temperate forests is not well understood. In this study, we exposed 47 carrion samples from hunted roe deer, in front of triple sets of camera traps, to examine how hunting remains are removed and fed upon by vertebrate scavengers. Overall, 70 % of the samples were completely removed from experimental sites by vertebrates. We detected twelve vertebrate taxa feeding on evisceration residues, including martens (<em>Martes</em> spp.), red kites (<em>Milvus milvus</em>) and garden dormice (<em>Eliomys quercinus</em>). Common buzzards (<em>Buteo buteo</em>) and Eurasian jays (<em>Garrulus glandarius</em>) were the most frequent feeders on carrion samples, while red foxes (<em>Vulpes vulpes</em>) displaced the largest proportion of samples. Finally, we found a range of insectivorous bird and mammal species using hunting remains as a source for invertebrate prey, while not scavenging on the remains directly. We demonstrate that evisceration residues can be a valuable resource for a wide range of taxa and suggest that viscera retention from hunted game may contribute to resource provisioning for scavengers in forest ecosystems. </span></p>
Data for: Effects of understory characteristics on browsing patterns of roe deer in central European mountain forests
<p><span>Selective browsing by deer on young trees may impede the management goal of increasing forest resilience against climate change and other disturbances. Deer population density is often considered the main driver of browsing impacts on young trees, however a range of other variables such as food availability also affect this relationship. In this study, we use browsing survey data from 135 research plots to explore patterns of roe deer (<em>Capreolus capreolus</em>) browsing pressure on woody plants in mountainous forests in central Europe. We fitted species-specific generalized linear mixed models for eight woody taxa, assessing potential effects of understory characteristics, roe deer abundance and lying deadwood on browsing intensity. Our study reveals conspecific and associational effects for woody taxa that are intermediately browsed by roe deer. Selective browsing pressure was mediated by preferences of plants, in that, browsing of strongly preferred woody taxa as for example mountain ash (<em>Sorbus aucuparia</em>) and of least preferred woody taxa e.g., Norway spruce (<em>Picea abies</em>) was not affected by the surrounding understory vegetation, while browsing pressure on intermediately browsed species like for example silver fir (<em>Abies alba</em>) was affected by understory characteristics. Contrary to our expectations, roe deer abundance was only positively associated with browsing pressure on silver fir and bilberry (<em>Vaccinium myrtillus</em>), while all other plants were unaffected by deer abundance. Finally, we did not find an influence of lying deadwood volume on the browsing pressure on any woody-plant species. Overall, our results indicate that patterns in browsing preference and intensity are species-specific processes and are partly affected by the surrounding understory vegetation. Current management strategies that aim to reduce browsing pressure through culling may be inefficient as they do not address other drivers of browsing pressure. However, managers also need to consider the characteristics of the local understory vegetation in addition to deer abundance, and design species-specific plans to reduce browsing on woody plant taxa.</span></p>
Data from: Born in heterogenous landscapes: birth timing, body mass and growth of roe deer (Capreolus capreolus) fawns in contrasting habitats
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Data for: Effects of understory characteristics on browsing patterns of roe deer in central European mountain forests
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Roe deer microsatellite genotype data
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Visual-acoustic wildlife deterrents as a supporting measure to prevent mowing-related mortality in roe deer fawns
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Evisceration residues from hunted roe deer as a resource for necrophagous insect fauna in the Black Forest, Germany: a preliminary study
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Data for: Use of viscera from hunted roe deer by vertebrate scavengers in summer in central European mountainous mixed forest
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Matching the green wave: Growing season length determines embryonic diapause in roe deer
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Data from: Saving Bambi from the mower? Using a drone with thermal camera to evaluate a low-tech scaring technique to reduce roe deer fawn mortality during grass harvest
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