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Vedel G, de la Peña E, Moreno-Rojas JM, Carranza J. Is the Intrasexual Competition in Male Red Deer Reflected in the Ratio of Stable Isotopes of Carbon and Nitrogen in Faeces? Animals (Basel) 2023; 13:2397. [PMID: 37508173 PMCID: PMC10375991 DOI: 10.3390/ani13142397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/12/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Isotopic analysis of carbon and nitrogen in faeces is a reliable methodology for studying ecology in wildlife. Here, we tested this technique to detect variations in carbon and nitrogen isotopic ratios (δ13C and δ15N) in two different intrasexual competition scenarios of male Iberian red deer (Cervus elaphus hispanicus) using faeces of individuals collected during hunting actions in South-eastern Spain. The carbon isotopic ratio (δ13C) was not found to be significant, likely due to similar diet composition in all individuals. However, the nitrogen isotopic ratio (δ15N) was found to be lower in populations where sexual competition between males during the rut was higher compared to low-competition populations. Therefore, this study suggests a different use of proteins by an individual male red deer depending on the sexually competitive context in which he lives. Although further research is needed, these results show the potential of isotopic analysis as a tool for studying individual and populational variations in the level of intrasexual competition, with implications in evolutionary ecology and population management.
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Affiliation(s)
- Giovanni Vedel
- Wildlife Research Unit (UiRCP), University of Córdoba, 14071 Córdoba, Spain
| | - Eva de la Peña
- Wildlife Research Unit (UiRCP), University of Córdoba, 14071 Córdoba, Spain
- Instituto de Investigación en Recursos Cinegéticos, IREC (CSIC, UCLM, JCCM), Ronda de Toledo 12, 13005 Ciudad Real, Spain
| | - Jose Manuel Moreno-Rojas
- Department of Agroindustry and Food Quality, Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Alameda del Obispo. Avda. Menéndez Pidal, s/n., 14071 Córdoba, Spain
| | - Juan Carranza
- Wildlife Research Unit (UiRCP), University of Córdoba, 14071 Córdoba, Spain
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F. Millán M, Carranza J, Seoane JM, Pérez-González J. Forage quality of consecutive years interact to affect body condition, reproductive rate and rut phenology in Iberian red deer. PLoS One 2022; 17:e0278367. [PMID: 36454913 PMCID: PMC9714875 DOI: 10.1371/journal.pone.0278367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/15/2022] [Indexed: 12/03/2022] Open
Abstract
Body condition for reproduction in capital breeders such as the red deer (Cervus elaphus) is mostly determined by their stored energy reserves. Thus, environmental conditions and resource availability may affect reproductive performance and breeding success. In warm Mediterranean regions, current climate change is driving to a hotter and drier scenario that is expected to affect the biology and dynamics of many populations. We examined the impact of these local climate variations on red deer body condition and the relationship with female reproductive phenology and breeding success. We used satellite information of landscape vegetation along with a 22-year data series of direct field behavioural observations during the rutting season in Doñana National Park (SW Spain). We analyzed faecal nitrogen content (FN) from faeces collected during the rut. We found that poor vegetation availability in drier years was related to worse body condition of deer (measured by FN) and a delay in the rutting season, which associated with lower reproductive rates (measured by the proportion of females with calves observed the next year). We also evidenced an interesting interaction between environmental conditions in consecutive years on the timing of breeding season, with timing of breeding being more delayed when previous year resource availability was high and many females bred, and the consecutive one was poor, so females hardly recovered condition and the rut occurred later. These findings highlight the carry-over effect of reproduction in capital breeders and the potential impact of climate-change conditions on red deer breeding.
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Affiliation(s)
- Marina F. Millán
- Wildlife Research Unit (UIRCP), Universidad de Córdoba, Córdoba, Spain
- * E-mail: (MFM); (JC)
| | - Juan Carranza
- Wildlife Research Unit (UIRCP), Universidad de Córdoba, Córdoba, Spain
- * E-mail: (MFM); (JC)
| | - José M. Seoane
- Wildlife Research Unit (UIRCP), Universidad de Córdoba, Córdoba, Spain
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3
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Chirichella R, Apollonio M, Pokorny B, De Marinis AM. Sex‐specific impact of tooth wear on senescence in a low‐dimorphic mammal species: The European roe deer (
Capreolus capreolus
). J Zool (1987) 2022. [DOI: 10.1111/jzo.13038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R. Chirichella
- Department of Veterinary Medicine University of Sassari Sassari Italy
- Department of Humanities and Social Sciences University of Sassari Sassari Italy
| | - M. Apollonio
- Department of Veterinary Medicine University of Sassari Sassari Italy
| | - B. Pokorny
- Environmental Protection College Velenje Slovenia
- Slovenian Forestry Institute Ljubljana Slovenia
| | - A. M. De Marinis
- Italian Institute for Environmental Protection and Research (ISPRA) Ozzano dell'Emilia Italy
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4
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Corlatti L, Iacolina L, Safner T, Apollonio M, Buzan E, Ferretti F, Hammer SE, Herrero J, Rossi L, Serrano E, Arnal MC, Brivio F, Chirichella R, Cotza A, Crestanello B, Espunyes J, Fernández de Luco D, Friedrich S, Gačić D, Grassi L, Grignolio S, Hauffe HC, Kavčić K, Kinser A, Lioce F, Malagnino A, Miller C, Peters W, Pokorny B, Reiner R, Rezić A, Stipoljev S, Tešija T, Yankov Y, Zwijacz‐Kozica T, Šprem N. Past, present and future of chamois science. WILDLIFE BIOLOGY 2022. [DOI: 10.1002/wlb3.01025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- L. Corlatti
- Chair of Wildlife Ecology and Management, Univ. of Freiburg Freiburg Germany
- Stelvio National Park Bormio Italy
| | - L. Iacolina
- Faculty of Mathematics, Natural Sciences and Information Technologies, Univ. of Primorska Koper Slovenia
- Aalborg Univ., Dept of Chemistry and Biosciences Aalborg Denmark
| | - T. Safner
- Faculty of Agriculture, Dept of Plant Breeding, Genetics and Biometrics, Univ. of Zagreb Zagreb Croatia
- Centre of Excellence for Biodiversity and Molecular Plant Breeding (CoE CroP‐BioDiv) Zagreb Croatia
| | - M. Apollonio
- Dept of Veterinary Medicine, Univ. of Sassari Sassari Italy
| | - E. Buzan
- Faculty of Mathematics, Natural Sciences and Information Technologies, Univ. of Primorska Koper Slovenia
- Faculty of Environmental Protection Velenje Slovenia
| | - F. Ferretti
- Research Unit of Behavioural Ecology, Ethology and Wildlife Management, Dept of Life Sciences, Univ. of Siena Siena Italy
| | - S. E. Hammer
- Inst. of Immunology, Dept of Pathobiology, Univ. of Veterinary Medicine Vienna Austria
| | - J. Herrero
- Dept of Agrarian and Environmental Science, Univ. of Zaragoza Huesca Spain
| | - L. Rossi
- Dept of Veterinary Sciences, Univ. of Turin Grugliasco (TO) Italy
| | - E. Serrano
- Wildlife Ecology&Health Group (WE&H) and Servei d'Ecopatologia de Fauna Salvatge (SEFaS), Dept de Medicina i Cirurgia Animals, Facultat de Veterinària, Univ. Autònoma de Barcelona Barcelona Spain
| | - M. C. Arnal
- Dept of Animal Pathology, Univ. of Zaragoza Zaragoza Spain
| | - F. Brivio
- Dept of Veterinary Medicine, Univ. of Sassari Sassari Italy
| | - R. Chirichella
- Dept of Veterinary Medicine, Univ. of Sassari Sassari Italy
| | - A. Cotza
- Research Unit of Behavioural Ecology, Ethology and Wildlife Management, Dept of Life Sciences, Univ. of Siena Siena Italy
| | - B. Crestanello
- Conservation Genomics Research Unit, Centre for Research and Innovation, Fondazione E. Mach S. Michele all'Adige (TN) Italy
| | - J. Espunyes
- Wildlife Conservation Medicine Research Group (WildCoM), Dept of Animal Medicine and Surgery, Univ. Autònoma de Barcelona Bellaterra Spain
| | | | - S. Friedrich
- Wildlife Research Unit (WFS), Agricultural Center Baden‐Württemberg (LAZBW) Aulendorf Germany
- Wildlife Sciences, Faculty of Forest Sciences and Forest Ecology, Univ. of Goettingen Göttingen Germany
| | - D. Gačić
- Dept of Forest Resources Use, Faculty of Forestry, Univ. of Belgrade Belgrade Serbia
| | - L. Grassi
- Dept of Animal Medicine, Production and Health (MAPS), Univ. of Padua Legnaro Italy
| | - S. Grignolio
- Dept of Life Sciences and Biotechnology, Univ. of Ferrara Ferrara Italy
| | - H. C. Hauffe
- Conservation Genomics Research Unit, Centre for Research and Innovation, Fondazione E. Mach S. Michele all'Adige (TN) Italy
| | - K. Kavčić
- Faculty of Agriculture, Dept of Fisheries, Apiculture, Wildlife Management and Special Zoology, Univ. of Zagreb Zagreb Croatia
| | - A. Kinser
- Deutsche Wildtier Stiftung Hamburg Germany
| | - F. Lioce
- Conservation Genomics Research Unit, Centre for Research and Innovation, Fondazione E. Mach S. Michele all'Adige (TN) Italy
- Dept of Life Sciences and Biotechnology, Univ. of Ferrara Ferrara Italy
| | - A. Malagnino
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LECA Grenoble France
- Dept of Biosciences, College of Science, Swansea Univ. Swansea UK
| | - C. Miller
- Deutsche Wildtier Stiftung Hamburg Germany
| | - W. Peters
- Dept of Biodiversity, Conservation and Wildlife Management, Bavarian State Inst. of Forestry Freising Germany
| | - B. Pokorny
- Faculty of Environmental Protection Velenje Slovenia
- Slovenian Forestry Inst. Ljubljana Slovenia
| | - R. Reiner
- Inst. of Wildlife Biology and Game Management, Univ. of Natural Resources and Life Sciences Vienna Austria
- Berchtesgaden National Park Berchtesgaden Germany
| | - A. Rezić
- Faculty of Agriculture, Dept of Fisheries, Apiculture, Wildlife Management and Special Zoology, Univ. of Zagreb Zagreb Croatia
| | - S. Stipoljev
- Faculty of Agriculture, Dept of Fisheries, Apiculture, Wildlife Management and Special Zoology, Univ. of Zagreb Zagreb Croatia
| | - T. Tešija
- Faculty of Agriculture, Dept of Plant Breeding, Genetics and Biometrics, Univ. of Zagreb Zagreb Croatia
| | - Y. Yankov
- Faculty of Agriculture, Dept of Biology and Aquaculture, Trakia Univ. Stara Zagora Bulgaria
| | | | - N. Šprem
- Faculty of Agriculture, Dept of Fisheries, Apiculture, Wildlife Management and Special Zoology, Univ. of Zagreb Zagreb Croatia
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“Move or Not to Move”—Red Deer Stags Movement Activity during the Rut. Animals (Basel) 2022; 12:ani12050591. [PMID: 35268160 PMCID: PMC8909082 DOI: 10.3390/ani12050591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 02/19/2022] [Accepted: 02/23/2022] [Indexed: 02/04/2023] Open
Abstract
Detailed animal movement analysis can help understand spatial population processes as the ultimate consequences of individual behaviour and ecological impacts. The mating strategy of mammalian herbivores is adapted to the distribution of females; thus, it is important to observe the activity of animals during a rut. In this paper, we used a new approach to examine the relationship between red deer stags’ movement activity and the fertile period of hinds. We presumed a relationship between stags’ daily activity changes and the period when hinds are in heat. We determined temporal conception trends, including the first and last conception dates in the examined population and the conception peak. In the same period, i.e., in the interval of major ecological significance when mating takes place, the activity of stags was analysed by GPS telemetry. The data collected in the examined period indicate that 60% of the hinds were conceived between 31 August and 19 September. We demonstrated that conception rates differed significantly between the first and second half of the rutting period. At the beginning of the reproductive cycle, the high number of hinds on heat (oestrus synchrony) increased the activity of stags (harem herding) compared to the pre-rutting period. As the mating season progressed, the movement activity of stags increased more (searching behaviour), induced by the decreasing number of fertile hinds. Therefore, we found that the oestrus of hinds significantly influenced the movement activity of stags in red deer.
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Reiner R, Zedrosser A, Zeiler H, Hackländer K, Corlatti L. Habitat and climate shape growth patterns in a mountain ungulate. Ecol Evol 2022; 12:e8650. [PMID: 35309748 PMCID: PMC8901871 DOI: 10.1002/ece3.8650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/17/2022] [Accepted: 02/03/2022] [Indexed: 11/11/2022] Open
Abstract
Uptake and use of energy are of key importance for animals living in temperate environments that undergo strong seasonal changes in forage quality and quantity. In ungulates, energy intake strongly affects body mass gain, an important component of individual fitness. Energy allocation among life-history traits can be affected by internal and external factors. Here, we investigate large-scale variation in body growth patterns of Alpine chamois Rupicapra rupicapra rupicapra, in relation to sex, age, temperature, and habitat variations across 31 (sub)populations in the Central European Alps. Taking advantage of an exceptionally large dataset (n = 178,175) of chamois hunted over 27 consecutive years between 1993 and 2019 in mountain ranges with different proportions of forest cover, we found that (i) patterns of body mass growth differ between mountain ranges, with lower body mass but faster mass growth with increasing proportion of forest cover and that (ii) the effect of spring and summer temperatures on changes in body growth patterns are larger in mountain ranges with lower forest cover compared to mountain ranges with higher forest cover. Our results show that patterns of body mass growth within a species are more plastic than expected and depend on environmental and climatic conditions. The recent decline in body mass observed in Alpine chamois populations may have greater impacts on populations living above the treeline than in forests, which may buffer against the effects of increasing temperatures on life-history traits.
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Affiliation(s)
- Rudolf Reiner
- Berchtesgaden National ParkBerchtesgadenGermany
- Institute of Wildlife Biology and Game ManagementUniversity of Natural Resources and Life Sciences, ViennaViennaAustria
| | - Andreas Zedrosser
- Institute of Wildlife Biology and Game ManagementUniversity of Natural Resources and Life Sciences, ViennaViennaAustria
- Department of Natural Sciences and Environmental HealthUniversity of South‐Eastern NorwayTelemarkNorway
| | | | - Klaus Hackländer
- Institute of Wildlife Biology and Game ManagementUniversity of Natural Resources and Life Sciences, ViennaViennaAustria
- Deutsche Wildtier Stiftung (German Wildlife Foundation)HamburgGermany
| | - Luca Corlatti
- Wildlife Ecology and ManagementUniversity of FreiburgFreiburgGermany
- Stelvio National ParkBormioItaly
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7
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Findeisen E, Südekum KH, Hummel J, Clauss M. Increasing feed intake in domestic goats (Capra hircus): Measured effects on chewing intensity are probably driven by escape of few, large particles from the forestomach. Comp Biochem Physiol A Mol Integr Physiol 2021; 257:110972. [PMID: 33940177 DOI: 10.1016/j.cbpa.2021.110972] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 11/16/2022]
Abstract
On the one hand, oral processing - mastication - is considered a relatively inflexible component of mammalian feed acquisition that constrains instantaneous intake rates. On the other hand, experimental data shows that the level of feed intake affects faecal particle size and hence net chewing efficiency in ruminants, with larger particles occurring in the faeces at higher intakes. Here, we report the effect of an increased feed intake during maintenance (L1), late (200% of L1) and peak lactation (300% of L1) of a consistent diet (hay:concentrates 50:50) in eight domestic goats on various measures of digestive physiology including faecal mean particle size (MPS). Increasing intake led to an increased gut fill, a reduction in digesta retention times, and an increase in faecal MPS (from 0.57 to 0.72 mm). However, this was an effect of the large particle fraction (>2 mm) being disproportionately excreted at higher intakes; if MPS was assessed on the basis of particles below the typical escape threshold (≤1 mm), there was no difference between intake levels. These findings suggest that the effect of intake on the calculated net chewing efficiency in ruminants may rather be an effect of increased large particle escape from the forestomach than a reduced chewing intensity per bolus during ingestion or rumination.
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Affiliation(s)
- Eva Findeisen
- Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany
| | - Karl-Heinz Südekum
- Institute of Animal Science, University of Bonn, Endenicher Allee 15, 53115 Bonn, Germany.
| | - Jürgen Hummel
- Ruminant Nutrition, Department of Animal Sciences, University of Goettingen, Kellnerweg 6, 37077 Goettingen, Germany.
| | - Marcus Clauss
- Clinic für Zoo Animals, Exotic Pets and Wildlife, Vetsuisse Faculty, University of Zurich,Winterthurerstr. 260, 8057 Zurich, Switzerland.
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8
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Capital-income breeding in wild boar: a comparison between two sexes. Sci Rep 2021; 11:4579. [PMID: 33633177 PMCID: PMC7907357 DOI: 10.1038/s41598-021-84035-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/25/2021] [Indexed: 11/08/2022] Open
Abstract
Organisms differ in the strategy adopted to fuel reproduction by using resources either previously acquired and stored in body reserves (capital breeding) or, conversely, acquired during their reproductive activity (income breeding). The choice of one or the other strategy is related to several internal and external factors which are counteractive in wild boar. Based on a large dataset of culled wild boar, we investigated individual body weight variability throughout the period of 1st September-31st January, which included the main part of the mating season, among different sex and age classes to determine their position along the capital-income breeding continuum. Though food resources were abundant during the rut, adult males lost body weight suggesting they adopted a predominantly capital breeding strategy, likely owing to the high intra-sexual competition entailed by the peculiar mating system of the species. On the contrary, subadult males seemed to behave as income breeders, likely enhancing the reproductive flexibility of wild boar populations. During the rut, females stored reserves, thus suggesting that they substantially relied on them to cover future reproductive costs.
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9
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Buzan E, Gerič U, Potušek S, Flajšman K, Pokorny B. First Insights into the Population Genetic Structure and Heterozygosity-Fitness Relationship in Roe Deer Inhabiting the Area between the Alps and Dinaric Mountains. Animals (Basel) 2020; 10:ani10122276. [PMID: 33276566 PMCID: PMC7761463 DOI: 10.3390/ani10122276] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 11/25/2020] [Accepted: 11/28/2020] [Indexed: 11/21/2022] Open
Abstract
Simple Summary We determined the genetic variability, population structure, and influence of genetic factors on two parameters of fitness (body mass and reproductive ability) in roe deer females in the contact zone between the Alps and the Dinaric Mountains by utilizing microsatellite variations in 214 individuals collected throughout Slovenia, Central Europe. Spatial differences in the genetic diversity of the species can be explained by population history, different approaches to population management and/or different connectivity among subpopulations. The population genetic structure confirms the high side fidelity of roe deer, but also shows the existence of admixtures of genes among different areas. We found evidence that genetic factors, including individual heterozygosity, influence body mass, confirming that heterozygosity positively affects fitness in wild populations. However, as the effect of genetic factors is usually masked or overruled by the influence of environmental factors, i.e., availability of resources, data on the joint influence of external and intrinsic factors on fitness and other life-history traits are needed to better predict the population dynamics of targeted species, which would enable sustainable, science-based population management. Abstract Across its pan-European distribution, the European roe deer (Capreolus capreolus) faces a wide diversity of environmental and climatic conditions; therefore, several factors, including intrinsic ones, shape life-history traits and cause significant variability in parameters of fitness. By utilizing microsatellite variations in 214 roe deer females collected throughout Slovenia, Central Europe, we determined the genetic variability and population structure of this species in the contact zone between the Alps and the Dinaric Mountains, i.e., over a wider area where data on the genetic outlook for this—the most common and widespread European wild ungulate—have been completely lacking so far. Throughout the country, we found moderate microsatellite diversity (Ho = 0.57–0.65) in relation to the observed heterozygosity reported for other roe deer populations in Europe. Spatial differences in genetic diversity of the species in Slovenia can be explained by population history linked to varying approaches to population management and/or different connectivity among subpopulations in topographically differentiated habitats. A country-wide pattern of genetic structure is clearly defined by separation of the populations into three groups present in the following regions: (i) Southern sub-Mediterranean and Karst regions, (ii) Central Slovenia, and (iii) the Sub-Pannonian Region in the north-east. This is also confirmed by evidencing a moderate isolation by distance, especially by separating southern samples (coastal Slovenia) from others. Levels of genetic differentiation vary among populations, which can be explained by the effect of natural geographical barriers or the presence of anthropogenic barriers such as urban areas and highways. In the subset of 172 yearling females, we analyzed the influence of genetic advantage (individual heterozygosity) and other genetic data (reflected in the structuring of the population) on body mass and reproductive ability. We found evidence that genetic factors influence the body mass of roe deer yearling females (explaining altogether 18.8% of body mass variance), and the level of individual heterozygosity alone also positively affected body mass, which is in accordance with the theory that heterozygosity is commonly positively correlated with fitness in wild populations. However, we did not uncover any effect of heterozygosity on two parameters of reproductive ability (fertility and potential reproductive outcome), indicating that several other factors, especially environmental ones, have a predominant effect on the parameters of fitness in roe deer.
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Affiliation(s)
- Elena Buzan
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000 Koper, Slovenia; (E.B.); (U.G.); (S.P.)
- Environmental Protection College, Trg mladosti 7, 3320 Velenje, Slovenia
| | - Urška Gerič
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000 Koper, Slovenia; (E.B.); (U.G.); (S.P.)
| | - Sandra Potušek
- Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška 8, 6000 Koper, Slovenia; (E.B.); (U.G.); (S.P.)
| | - Katarina Flajšman
- Slovenian Forestry Institute, Večna pot 2, 1000 Ljubljana, Slovenia;
| | - Boštjan Pokorny
- Environmental Protection College, Trg mladosti 7, 3320 Velenje, Slovenia
- Slovenian Forestry Institute, Večna pot 2, 1000 Ljubljana, Slovenia;
- Correspondence:
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