Journal of Vertebrate Biology最新文献_第7页

How do seasonal changes in adult wolf defecation patterns affect scat detection probabilities? 成年狼排便模式的季节变化如何影响粪便检测概率？

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-12-20 DOI: 10.25225/jvb.22043

F. Roda, Florian Poulard, Gaëtan Ayache, Nadine Nasi, Carole D'Antuoni, Roger Mathieu, G. Cheylan

{"title":"How do seasonal changes in adult wolf defecation patterns affect scat detection probabilities?","authors":"F. Roda, Florian Poulard, Gaëtan Ayache, Nadine Nasi, Carole D'Antuoni, Roger Mathieu, G. Cheylan","doi":"10.25225/jvb.22043","DOIUrl":"https://doi.org/10.25225/jvb.22043","url":null,"abstract":"Abstract. Wolves are currently recolonising their historic range in France. The collection of scats is a widely used a non-invasive survey method to monitor wolf population size. However, seasonal changes in wolf faecal deposition patterns might affect the results of surveys. We used a detection dog and camera trapping (CT) to compare wolf scat detectability during winter and the nursing season. We collected 113 scats deposited by adult wolves at 29 marking sites on forest roads in the Sainte-Baume Regional Park, Provence, France. After parturition, the mean number of adult wolf scats increased by 160% inside the nursing territory and decreased by 80% outside of it. Around the time the pups are born, changes in faecal deposition patterns of adults make it easier to find scats around the wolf den (87% probability per wolf marking site) and harder to find scats outside the nursing territory (11% probability). During winter, the chance to find scats is equal (38 to 40% probability per wolf marking site) inside vs. outside the nursing territory. The combined use of a detection dog and camera traps allowed us to gather data on wolf defecation patterns non-invasively. Detectability of adult wolf scats during the nursing season is highly variable compared to winter due to seasonal behavioural changes affecting scat location. We conclude that surveys to collect samples and estimate wolf population size should be conducted exclusively during winter to avoid sampling biases.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48351814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Seasonal variation in testicular biometry of wild boar in the game preserve 狩猎保护区野猪睾丸生物测定的季节变化

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-12-09 DOI: 10.25225/jvb.22059

Jakub Drimaj, J. Kamler, Z. Rečková, O. Mikulka

{"title":"Seasonal variation in testicular biometry of wild boar in the game preserve","authors":"Jakub Drimaj, J. Kamler, Z. Rečková, O. Mikulka","doi":"10.25225/jvb.22059","DOIUrl":"https://doi.org/10.25225/jvb.22059","url":null,"abstract":"Abstract. The increase in wild boar numbers in recent decades is partly due to the involvement of most young females in reproduction as early as their first year of life. After the rut of adult females is over, young females are still entering oestrous as they attain maturity, prolonging the rutting period by several months. This study aimed to evaluate the effect of seasonality on the growth rate of male wild boar bodies, the growth of piglet and yearling male wild boar gonads, and sperm concentration in the epididymides. We found that yearlings' weight and body length were almost constant in summer and autumn, with a sharp increase in winter. Seasonality was also reflected in the body condition index, which rose by more than 41% between summer and winter. In terms of seasonality, the testimetric dimensions again differed significantly only in winter. Sperm were recorded in piglets weighing more than 15 kg. Regardless of the time of capture, 41% of piglets were examined as juveniles, only 6%, resp. 8% of piglets reached low or medium concentration values. While 10% of all yearling males were azoospermatic (juvenile), regardless of weight, there was evidence of seasonality in the proportion of males with measurable concentrations. These concentrations gradually increased from 62.5% in summer to 78.6% in winter. No sterile male over two years of age was noted. The results show that even in wild boars, there is a culmination not only of physical characteristics in winter but also a culmination of testimetric dimensions. Sperm already occur in 15 kg of piglets, which means they can theoretically participate in the fertilisation of female piglets.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48858090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supplementary morphological information for Cornufer manus (Kraus & Allison, 2009) and Cornufer vogti (Hediger, 1934), with information on colour in life Cornufer manus（Kraus&Allison，2009）和Cornufer vogti（Hediger，1934）的补充形态信息，以及生命中的颜色信息

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-12-09 DOI: 10.25225/jvb.22053

Michaël P. J. Nicolaï, S. Porchetta, J. Clegg, Peter N. Taylor, M. Jocqué

引用次数: 0

Mink predation in great crested grebe colonies: random robbery or a well-planned hunt? 大冠grebe群落中的水貂捕食：随机抢劫还是精心策划的狩猎？

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-11-07 DOI: 10.25225/jvb.22056

M. Brzeziński, P. Chibowski, A. Zalewski

{"title":"Mink predation in great crested grebe colonies: random robbery or a well-planned hunt?","authors":"M. Brzeziński, P. Chibowski, A. Zalewski","doi":"10.25225/jvb.22056","DOIUrl":"https://doi.org/10.25225/jvb.22056","url":null,"abstract":"Abstract. The study aimed to recognize whether the activity of a semi-aquatic invasive carnivore – the American mink Neovison vison – is related to the distribution of waterbird colonies. For this reason, we monitored mink occurrence in lake reedbeds and the fate of artificial nests imitating those of the great crested grebe Podiceps cristatus. The location of artificial nests in the grebe colony increased the probability of their survival compared to those placed outside the grebe colony. During the study, mink activity increased over time. In general, it was lower in colonies than outside of them, suggesting that the presence of natural nests does not increase the probability of mink occurrence in lake reedbeds. However, mink activity was negatively correlated with the distance from the lake shoreline and differed spatially according to the presence or absence of natural grebe nests. In grebe colonies, the probability of mink occurrence at greater distances from the lake shoreline was higher than outside, which can be explained by optimizing swimming effort while searching for prey. In conclusion, mink activity in colonies was lower than in areas with no waterbird nests, and nest location in a colony decreased predation risk by mink.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47793369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Providing scientifically defensible evidence and correct calibrated thresholds for risk screening non-native species with second-generation Weed Risk Assessment-type decision-support tools 使用第二代杂草风险评估型决策支持工具，为风险筛查非本土物种提供科学合理的证据和正确校准的阈值

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-10-19 DOI: 10.25225/jvb.22047

L. Vilizzi, M. Piria

{"title":"Providing scientifically defensible evidence and correct calibrated thresholds for risk screening non-native species with second-generation Weed Risk Assessment-type decision-support tools","authors":"L. Vilizzi, M. Piria","doi":"10.25225/jvb.22047","DOIUrl":"https://doi.org/10.25225/jvb.22047","url":null,"abstract":"Abstract. The risk screening of non-native species that are likely to be invasive in a defined risk assessment area is crucial for implementing strategies of rapid response and mitigation to protect native biodiversity and socio-economic activities. However, for successful risk-ranking of the screened species, scientifically defensible evidence in support of the screening outcomes must be provided, and computation of a correctly calibrated threshold to distinguish between medium-risk and high-risk species must be achieved. This paper reviews published applications of the “second-generation” Weed Risk Assessment-type decision support tools (i.e. the Aquatic Species Invasiveness Screening Kit and the Terrestrial Animal Species Invasiveness Screening Kit) and evaluates them in terms of the above two requirements. Several procedural errors were identified that involved: i) lack of provision of the report with details of the species-specific screenings; ii) incomplete justifications for the responses in the toolkit questionnaire; iii) incomplete details of the protocol used for the a priori categorisation of the screened species for threshold computation; iv) unaccepted or non-existent taxonomic names for the screened species (including typographical errors). Guidelines are provided for both assessors and reviewers to ensure that these procedural errors are avoided in future applications of these risk screening toolkits.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46843013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Habitat use of the mistle thrush (Turdus viscivorus): the importance of urban areas and permanent crops 生境利用飞眉(Turdus viscivorus):城市地区和永久农作物的重要性

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-10-04 DOI: 10.25225/jvb.22041

G. Chiatante

{"title":"Habitat use of the mistle thrush (Turdus viscivorus): the importance of urban areas and permanent crops","authors":"G. Chiatante","doi":"10.25225/jvb.22041","DOIUrl":"https://doi.org/10.25225/jvb.22041","url":null,"abstract":"Abstract. The mistle thrush is a species that occurs in old-growth forests, especially coniferous forests, in hilly and mountain areas and avoids warm and dry areas and human settlements. Despite this, in recent decades, the mistle thrush has colonised Apulia, southern Italy's lowlands and coasts, in rural and urban contexts. This study investigates the habitat selection of this species in central Apulia, in both the breeding season and winter, by carrying out 301 point counts and 264 linear transects. Data were collected to build a Species Distribution Model (SDM) for each season with the MaxEnt algorithm and the regional land use map, selecting variables through the Akaike Information Criterion. Overlap in the suitability of both seasons was measured using Schoener's D. A total of 133 observations of mistle thrush were noted during the breeding season and 85 observations during winter. During the breeding season, the mistle thrush selected olive orchards, especially those near vineyards and urban areas, where it could find food and safe places to nest. In this period, however, it was also found in coniferous woodlands. The mistle thrush also used vineyards in winter, whereas it avoided urban areas in this period, possibly due to food scarcity. Non-irrigated arable lands were avoided all year round, whereas natural grasslands were only avoided during the winter. Irrigated arable lands positively affected the species. Furthermore, 60% of habitat characteristics were similar between the breeding and winter seasons. It is unclear what makes the mistle thrush shift its range southward and downslope. However, it is likely due to the general increase in forest cover, a positive rainfall trend in Central Italy during summer, and the absence of competition with similar species in central Apulia.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42574127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Diet of the grey wolf Canis lupus in Roztocze and Solska Forest, south-east Poland 波兰东南部Roztocze和Solska森林中灰狼犬狼疮的饮食

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-10-03 DOI: 10.25225/jvb.22040

R. Mysłajek, P. Stachyra, M. Figura, Monika Nędzyńska-Stygar, R. Stefański, Michał Korga, I. Kwiatkowska, K. Stępniak, Katarzyna Tołkacz, S. Nowak

{"title":"Diet of the grey wolf Canis lupus in Roztocze and Solska Forest, south-east Poland","authors":"R. Mysłajek, P. Stachyra, M. Figura, Monika Nędzyńska-Stygar, R. Stefański, Michał Korga, I. Kwiatkowska, K. Stępniak, Katarzyna Tołkacz, S. Nowak","doi":"10.25225/jvb.22040","DOIUrl":"https://doi.org/10.25225/jvb.22040","url":null,"abstract":"Abstract. The diet composition and prey selection of grey wolves (Canis lupus) inhabiting the Roztocze and Solska Forest (south-east Poland) was studied based on an analysis of scats collected in 2001-2002 (n = 84) and 2017-2020 (n = 302). In both periods, wolves preyed mainly on wild ungulates (96.5-96.7% of consumed biomass). Roe deer (Capreolus capreolus) was the most critical wolf prey accounting for 57.8% of consumed biomass in 2001-2002 and 49.2% and 2017-2020, but wolves positively select only wild boar (Jacob's selectivity index D = 0.213 in 2001-2002 and 0.710 in 2017-2020) and fallow deer (D = 0.588 only in 2017-2020). The largest species – moose Alces alces and red deer Cervus elaphus – were consumed less than expected from their share in the ungulate community. Predation on medium-sized wild mammals and domestic animals was low, 0.8-2.2% and 1.1-2.7% of the biomass consumed, respectively. The breadth of the wolf diet was very narrow and identical in both study periods (B = 1.07), while the similarity of diet composition was high (α = 0.999). This study indicated the stability of the wolf diet over two decades and the importance of wild boar as a food source for this carnivore.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46798076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Temporal overlap of human and apex predator activity on wildlife trails and forest roads 野生动物小径和森林道路上人类和顶端捕食者活动的时间重叠

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-09-16 DOI: 10.25225/jvb.22029

Silvia Blašković, T. Gomerčić, Ira Topličanec, M. Sindičić

{"title":"Temporal overlap of human and apex predator activity on wildlife trails and forest roads","authors":"Silvia Blašković, T. Gomerčić, Ira Topličanec, M. Sindičić","doi":"10.25225/jvb.22029","DOIUrl":"https://doi.org/10.25225/jvb.22029","url":null,"abstract":"Abstract. The daily activity patterns of animals are modulated by external factors such as habitat selection, temporal niche selection, prey availability and predation risk. Furthermore, different species show a variety of responses to human disturbance; therefore, to understand the effects of human activities on wildlife, it is crucial to consider the disturbance characteristics (e.g. type, frequency, timing and location of human activity). Our objective was to evaluate whether vehicles on forest roads altered the daily temporal activity patterns of three apex predators; Eurasian lynx (Lynx lynx), the grey wolf (Canis lupus) and brown bear (Ursus arctos), using an extensive camera trap data set collected across a gradient of forest roads and wildlife trails in the Croatian part of the Dinaric mountains. We expected a low temporal overlap between humans and apex predators but predicted this even lower at sites where vehicles are present. Consistent with our expectations, the general overlap in temporal activity of all three apex predators and humans was low, the former being primarily active at night/dawn/dusk hours and the latter during daylight hours. In contrast, our results showed similarity in the temporal activity of all three predators on wildlife trails and forest roads where human activity was more frequent and diverse.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42966994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Ecological role of the Eurasian otter, Lutra lutra (Mustelidae, Carnivora) as a seed dispersal species for riparian vegetation in Iberian fresh waters 欧亚水獭Lutra Lutra（鼬科，食肉动物）作为伊比利亚淡水河岸植被种子传播物种的生态作用

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-09-07 DOI: 10.25225/jvb.22037

D. Latorre, Raquel Merino-Aguirre, A. Cruz, E. Lantero, Alejandra M. Arroyo, D. Fletcher, D. Almeida

{"title":"Ecological role of the Eurasian otter, Lutra lutra (Mustelidae, Carnivora) as a seed dispersal species for riparian vegetation in Iberian fresh waters","authors":"D. Latorre, Raquel Merino-Aguirre, A. Cruz, E. Lantero, Alejandra M. Arroyo, D. Fletcher, D. Almeida","doi":"10.25225/jvb.22037","DOIUrl":"https://doi.org/10.25225/jvb.22037","url":null,"abstract":"Abstract. Endozoochory is a mutualistic interaction between plants and animals. Such a relationship has rarely been examined in the Eurasian otter Lutra lutra. This study aimed to assess the use and electivity of fruit by this carnivore, along with the viability of ingested seeds. Otter spraints and fruit were collected from the River Bullaque (Guadiana River basin, central Spain) in June and September 2018-2019. A high occurrence of fruit (> 40%) was found in spraints during September. Otters ingested fruit in June from only one plant species: Iberian bushweed Flueggea tinctoria (Phyllanthaceae); whereas seeds ingested in September belonged to four plant species: apple mint Mentha suaveolens (Lamiaceae), common hawthorn Crataegus monogyna, dog rose Rosa canina and elmleaf blackberry Rubus ulmifolius (three Rosaceae species). According to the environmental availability, otters displayed avoidance for mint and rose, neutral selection for hawthorn and preference for blackberry. Germination was unsuccessful for mint seeds, whereas germination was the highest for blackberry (37%; 49% for blackbird Turdus merula, a well-known frugivorous species). Otters appear to display an ecological role as seed dispersers for riparian vegetation in Iberian fresh waters. These findings provide insights into this endozoochorous co-evolution between plants and Carnivora.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42991616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A comparison of capture-mark-recapture and camera-based mark-resight to estimate abundance of Alpine marmot (Marmota marmota) 捕捉-标记-再捕获法与基于相机的标记观察法估算高山旱獭(旱獭)数量的比较

IF 1.5 4区生物学

Journal of Vertebrate Biology Pub Date : 2022-08-19 DOI: 10.25225/jvb.22023

A. Forti, P. Partel, Michel J. Orsingher, G. Volcan, E. Dorigatti, L. Pedrotti, L. Corlatti

{"title":"A comparison of capture-mark-recapture and camera-based mark-resight to estimate abundance of Alpine marmot (Marmota marmota)","authors":"A. Forti, P. Partel, Michel J. Orsingher, G. Volcan, E. Dorigatti, L. Pedrotti, L. Corlatti","doi":"10.25225/jvb.22023","DOIUrl":"https://doi.org/10.25225/jvb.22023","url":null,"abstract":"Abstract. Obtaining reliable estimates of population abundance is of utmost importance for wildlife research and management. To this aim, camera-traps are increasingly used, as this method has the advantage of being noninvasive and allows for continuous monitoring. Camera traps can be used to estimate abundance in combination with traditional capture-recapture techniques, as well as with estimators that do not require marked individuals. Here, we investigated the use of camera-based mark-recapture methods applied to an Alpine marmot (Marmota marmota) population in the Paneveggio-Pale di San Martino Natural Park (eastern Italian Alps). We compared abundance estimates derived from a traditional capture-mark-recapture (CMR) framework and camera trap mark-resight (CTMR) over three consecutive years. CMR models estimated a population size of n = 19 individuals (95% CI = 18-27), n = 15 (14-22) and n = 24 (22-32) in 2019, 2020 and 2021 respectively. CTMR returned an estimated population size of n = 24 (95% CI = 18-30), n = 20 (17-24) and n = 22 (21-24) for the same years. The difference between the estimate of these two methods was significant only in 2020, with CMR returning a lower estimate than CTMR (95% CI = –9.4–0.6). This difference was not significant for 2019 (95% CI = –10.9-0.9) and 2021 (95% CI = –1.8-5.9). Based on our results, the use of CTMR techniques is promising in the estimation of absolute population size of marmots, and the estimator was slightly more precise than CMR. Further studies are needed to evaluate the effectiveness of CTMR with reduced capture effort.","PeriodicalId":48482,"journal":{"name":"Journal of Vertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2022-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42175977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0