Winter severity or supplementary feeding—which matters more for wild boar?

Oja, Ragne; Kaasik, Ants; Valdmann, Harri

doi:10.1007/s13364-014-0190-0

Cited by 30 publications

(22 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of feeding station sites where food is provided represents an easily accessible and concentrated source of food that can be opportunistically used under such high energetic demands. The intensive use of feeding station sites when environmental conditions were severe has been reported also in other ungulates (e.g., elk Cervus canadensis: Mangus 2011, wild boar Sus scrofa: Oja et al 2014). Interactive effects between latitude and altitude (that we used as a factor to control for study area) also supported the adverse weather condition hypothesis.…”

Section: Discussionsupporting

confidence: 77%

“…The intensive use of feeding station sites when environmental conditions were severe has been reported also in other ungulates (e.g., elk Cervus canadensis : Mangus , wild boar Sus scrofa : Oja et al. ). Interactive effects between latitude and altitude (that we used as a factor to control for study area) also supported the adverse weather condition hypothesis.…”

Section: Discussionmentioning

confidence: 67%

See 1 more Smart Citation

Plastic response by a small cervid to supplemental feeding in winter across a wide environmental gradient

et al. 2017

View full text Add to dashboard Cite

Supplemental feeding for ungulates is a widespread practice in many human‐dominated landscapes across Europe and North America, mainly intended to seasonally support populations. Surprisingly, little consideration was given so far to the effect of supplemental feeding on ungulate spatial ecology at a large scale, in management and conservation studies. Analyses of the main ecological drivers influencing the use of supplemental feeding sites by ungulates across a gradient of abiotic and biotic factors are currently lacking. We conducted a large‐scale assessment of ecological and management drivers of use of feeding station sites in roe deer (Capreolus capreolus), a small cervid widely distributed across Europe that is particularly sensitive to winter severity. We tested four competing hypotheses by comparing the time spent at feeding station sites by 180 individual Global Positioning System‐collared roe deer from nine populations spanning a wide latitudinal and altitudinal gradient. We found that roe deer used feeding station sites highly opportunistically in response to winter severity across its range. The harshest weather conditions at the northern range limit or the highest elevations provoked an intense use of feeding station sites, which typically peaked at the end of winter, in accordance with the adverse weather and nutritional condition hypotheses. Consistently, milder winters corresponded to a reduced and/or more homogeneous use of supplemental feeding. In general, intensively used feeding station sites heavily conditioned spatial behavior of roe deer. Importantly, biotic factors such as the presence of competitors decreased roe deer use of supplemental feeding station sites. Our results emphasize the importance of this human‐induced alteration to resource distribution, especially in the context of the rapidly occurring climate change that is modifying resource availability for ungulate populations.

show abstract

Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 67%

Plastic response by a small cervid to supplemental feeding in winter across a wide environmental gradient

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In our analysis, we tested effects of female body mass and season, as well as temporal variations in mean January temperature (sensu Melis et al 2006, Oja et al 2014, mean summer temperature and total summer precipitation (sensu Cellina 2008), on wild boar pregnancy rate and litter size. Following the approach of Grosbois et al (2008), we used generalized linear models (GLM) and analysis of deviance to determine which predictor variables that potentially could affect the response variable, with the effect of year taken into account, and consequently which covariates that should be included in the final models.…”

Section: Methodsmentioning

confidence: 99%

“…Temperature and precipitation may also affect the proportion of breeding females (Servanty et al 2009), with drier and warmer summers resulting in decreased reproduction (Cellina 2008). To our knowledge, no studies have explicitly studied effects of winter climate on the reproductive output, but population density have been reported to correlate positively with winter temperature (Melis et al 2006, Oja et al 2014, Vetter et al 2015. The species show a high level of plasticity and are able to explore increased or pulsed resources efficiently (Schley and Roper 2003).…”

Section: Effects Of Female Body Mass and Climate On Reproduction In Nmentioning

confidence: 99%

Effects of female body mass and climate on reproduction in northern wild boar

Bergqvist¹,

Paulson²,

Elmhagen

2018

Wildlife Biology

View full text Add to dashboard Cite

show abstract

“…For this species remarkable adaptability, wild boar populations expand their geographic range and can be found in a variety of habitats and climates [3,4]. Successful range expansion and increasing abundance of the wild boar populations is in uenced by several factors like a high ecological plasticity, high reproductive capacity, their adaptability to changing food diverse [2], lack of natural predators [5] and supplementary feeding [6]. In light of these factors, the main regulatory mechanism for the rapid increase in size of the wild boar populations is wildlife management [7,8].…”

Section: Introductionmentioning

confidence: 99%

Genetic Population Structure of Sus scrofa in Lithuania before the African Swine Fever Outbreak

Griciuvienė¹,

Janeliūnas²,

Jurgelevičius³

et al. 2020

Preprint

View full text Add to dashboard Cite

Background: Wild boar (Sus scrofa) is a widely distributed ungulate whose success can be attributed to a variety of ecological features. The genetic variation and population structure of wild boar population in Lithuania before the spread of African swine fever has not yet been thoroughly studied. To characterize the amount of genetic variation and population structure of wild boar in Lithuania before the African swine fever outbreak, we genotyped and analyzed microsatellite loci for a total of 96 wild boar specimens from nine locations. Results: In the present study, individuals were genetically typed at fifteen microsatellite loci using multiplex PCR amplification. Our data showed that that 85% of the genetic variation originated from individuals, indicating a high gene exchange between the nine subpopulations of wild boar in Lithuania. Bayesian-based clustering analysis in STRUCTURE identified two inferred genetic clusters and each of the 9 subpopulations had more than 1 cluster. A factorial correspondence analysis confirmed homogeneity and no genetic differentiation between subpopulations of S.scrofa in Lithuania.Conclusions: Our results reveal that wild boar subpopulations of Lithuania before the African swine fever outbreak were still not distinguished and admixed. This study highlights the potential contribution for the future study understanding the detailed structure of wild boar population in Lithuania after African swine fever outbreak.

show abstract

Winter severity or supplementary feeding—which matters more for wild boar?

Cited by 30 publications

References 25 publications

Plastic response by a small cervid to supplemental feeding in winter across a wide environmental gradient

Plastic response by a small cervid to supplemental feeding in winter across a wide environmental gradient

Effects of female body mass and climate on reproduction in northern wild boar

Genetic Population Structure of Sus scrofa in Lithuania before the African Swine Fever Outbreak

Contact Info

Product

Resources

About