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Jarnemo A, Jansson G, Månsson J. Temporal variations in activity patterns during rut – implications for survey techniques of red deer, Cervus elaphus. WILDLIFE RESEARCH 2017. [DOI: 10.1071/wr16156] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context Intraspecific differences in behaviour can affect censuses and bias population estimates, suggesting that choice and implementation of census methods are fundamental, and need to be adapted to behavioural variations. Aims We investigated temporal variations in activity patterns during the rut among red deer (Cervus elaphus) categories and the implications for two different census methods. Methods We used a long-term dataset collected during 17 consecutive red deer rutting seasons in southernmost Sweden. The two census methods were: (1) a collection of observation ratios; and (2) a count of individuals including identification of males. Both methods are commonly used in ungulate management. Key results There was a difference in activity among age and sex categories, with a temporal variation in activity and/or presence at rutting grounds of adult (≥6 years) and subadult (2–5 years) males. Observation ratios of adult and subadult males increased from low at the start of the rut to a top level during peak rut, with subadults lagging behind adults. Before and during peak rut, the proportion of adult males was higher than that of subadults. After peak rut, the proportion of adult males decreased, whereas subadult males remained high, resulting in a higher number of subadults than of adults. The comparison of the two census methods revealed a strong correlation regarding the trends of population size and for the age and sex categories. There was also a strong consistency concerning the calf/female ratio. The male proportion was, however, consistently lower in the collected observations than in the counts. Conclusions The lower proportion of males in observations compared with counts may be explained by behavioural differences among male age classes, i.e. by temporal variations in presence and activity. That females, calves and yearling males are stationary during the rut, but adult and subadult males arrive and depart the rutting grounds at varying points of time, can lead to an underestimated male proportion in continuously collected observation data. Implications The results suggest that census should be conducted during peak rut, and that incorporating identification of individual males in the monitoring may be beneficiary.
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Pellerin M, Bessière A, Maillard D, Capron G, Gaillard JM, Michallet J, Bonenfant C. Saving time and money by using diurnal vehicle counts to monitor roe deer abundance. WILDLIFE BIOLOGY 2017. [DOI: 10.2981/wlb.00274] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- Maryline Pellerin
- M. Pellerin and J. Michallet, Office National de la Chasse et de la Faune Sauvage, Unité Cervidés-Sanglier, 1 place Exelmans, FR-55000 Bar-le-Duc, France
| | - Aurélie Bessière
- A. Bessière, J.-M. Gaillard and C. Bonenfant, Lab. de Biométrie et Biologie Évolutive, UMR CNRS, Univ. Claude Bernard Lyon, Villeurbanne Cedex, France
| | - Daniel Maillard
- D. Maillard, Office National de la Chasse et de la Faune Sauvage, Unité Faune de Montagne, Juvignac, France
| | - Gilles Capron
- G. Capron, Office National de la Chasse et de la Faune Sauvage, Délégation régionale Aquitaine-Limousin-Poitou-Charentes, Poitiers, France
| | - Jean-Michel Gaillard
- M. Pellerin and J. Michallet, Office National de la Chasse et de la Faune Sauvage, Unité Cervidés-Sanglier, 1 place Exelmans, FR-55000 Bar-le-Duc, France
| | - Jacques Michallet
- A. Bessière, J.-M. Gaillard and C. Bonenfant, Lab. de Biométrie et Biologie Évolutive, UMR CNRS, Univ. Claude Bernard Lyon, Villeurbanne Cedex, France
| | - Christophe Bonenfant
- A. Bessière, J.-M. Gaillard and C. Bonenfant, Lab. de Biométrie et Biologie Évolutive, UMR CNRS, Univ. Claude Bernard Lyon, Villeurbanne Cedex, France
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Chitwood MC, Lashley MA, Kilgo JC, Cherry MJ, Conner LM, Vukovich M, Ray HS, Ruth C, Warren RJ, DePerno CS, Moorman CE. Are camera surveys useful for assessing recruitment in white-tailed deer? WILDLIFE BIOLOGY 2017. [DOI: 10.2981/wlb.00178] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Affiliation(s)
- M. Colter Chitwood
- M. C. Chitwood and M. A. Lashley, Fisheries, Wildlife and Conservation Biology Program, Dept of Forestry and Environmental Resources, North Carolina State Univ., Raleigh, NC 27695, USA. Present address for MCC: Fisheries and Wildlife Sciences Dept, Univ. of Missouri, Columbia, MO, USA. Present address for MAL: Dept of Wildlife, Fisheries and Aquaculture, Mississippi State Univ., Mississippi State, MS, USA
| | - Marcus A. Lashley
- M. C. Chitwood and M. A. Lashley, Fisheries, Wildlife and Conservation Biology Program, Dept of Forestry and Environmental Resources, North Carolina State Univ., Raleigh, NC 27695, USA. Present address for MCC: Fisheries and Wildlife Sciences Dept, Univ. of Missouri, Columbia, MO, USA. Present address for MAL: Dept of Wildlife, Fisheries and Aquaculture, Mississippi State Univ., Mississippi State, MS, USA
| | - John C. Kilgo
- J. C. Kilgo and M. Vukovich, USDA Forest Service, Southern Research Station, New Ellenton, SC, USA
| | - Michael J. Cherry
- M. J. Cherry and L. M. Conner, Joseph W. Jones Ecological Research Center, Newton, GA, USA
| | - L. Mike Conner
- M. J. Cherry and L. M. Conner, Joseph W. Jones Ecological Research Center, Newton, GA, USA
| | - Mark Vukovich
- J. C. Kilgo and M. Vukovich, USDA Forest Service, Southern Research Station, New Ellenton, SC, USA
| | - H. Scott Ray
- H. S. Ray, USDA Forest Service, Francis Marion and Sumter National Forest, Columbia, SC, USA
| | - Charles Ruth
- C. Ruth, South Carolina Dept of Natural Resources, Columbia, SC, USA
| | - Robert J. Warren
- R. J. Warren, Warnell School of Forestry and Natural Resources, Univ. of Georgia, Athens, GA, USA
| | - Christopher S. DePerno
- C. S. DePerno and C. E. Moorman, Fisheries, Wildlife and Conservation Biology Program, Dept of Forestry and Environmental Resources, North Carolina State Univ., Raleigh, NC, USA
| | - Christopher E. Moorman
- C. S. DePerno and C. E. Moorman, Fisheries, Wildlife and Conservation Biology Program, Dept of Forestry and Environmental Resources, North Carolina State Univ., Raleigh, NC, USA
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Volodin IA, Volodina EV, Sibiryakova OV, Naidenko SV, Hernandez-Blanco JA, Litvinov MN, Rozhnov VV. Vocal activity of the red deer and the acoustic structure of its rutting calls in the Russian Far East. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2015; 462:144-147. [PMID: 26164336 DOI: 10.1134/s0012496615030114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Indexed: 06/04/2023]
Affiliation(s)
- I A Volodin
- Moscow State University, Moscow, 119992, Russia,
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Tullo E, Ponzetta MP, Trunfio C, Gardoni D, Ferrari S, Guarino M. Acoustic Analysis of Some Characteristics of Red Deer Roaring. ITALIAN JOURNAL OF ANIMAL SCIENCE 2015. [DOI: 10.4081/ijas.2015.3773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Emanuela Tullo
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, University of Milan, Italy
| | - Maria Paola Ponzetta
- Dipartimento di Scienze delle Produzioni Agroalimentari e dell’Ambiente, University of Florence, Italy
| | - Carmen Trunfio
- Dipartimento di Scienze delle Produzioni Agroalimentari e dell’Ambiente, University of Florence, Italy
| | - Davide Gardoni
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, University of Milan, Italy
| | - Sara Ferrari
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, University of Milan, Italy
| | - Marcella Guarino
- Dipartimento di Scienze Veterinarie per la Salute, la Produzione Animale e la Sicurezza Alimentare, University of Milan, Italy
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