Wildlife Research最新文献

筛选
英文 中文
The impact of wild boars on the temporal resource utilisation of silver pheasants in South China 野猪对华南白鹇时空资源利用的影响
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-12-19 DOI: 10.1071/wr23043
Wei Liu, Xinhang Song, Ruge Wang, Lingying Shuai, Shuping Xiao, Yanzhen Bu
{"title":"The impact of wild boars on the temporal resource utilisation of silver pheasants in South China","authors":"Wei Liu, Xinhang Song, Ruge Wang, Lingying Shuai, Shuping Xiao, Yanzhen Bu","doi":"10.1071/wr23043","DOIUrl":"https://doi.org/10.1071/wr23043","url":null,"abstract":"<strong> Context</strong><p>Increased populations of wild boar (<i>Sus scrofa</i>) in many ecosystems have raised concern regarding the impacts of this species on ecosystems and biodiversity. The relationship between other wildlife and wild boars is not yet fully understood, due to a lack of studies on whether and how other wildlife avoid wild boar interference.</p><strong> Aims</strong><p>This study aimed to investigate the impact of wild boars on the temporal resource utilisation of silver pheasants (<i>Lophura nycthemera</i>).</p><strong> Methods</strong><p>Eighteen infrared camera stations were deployed during the survey period of May 2020 to April 2022. We utilised avoidance–attraction ratios for evaluating the temporal interaction between silver pheasants and wild boars. We also used a kernel density for measuring their daily activity patterns and interspecific overlap. We simultaneously analysed the impact of human activities on silver pheasants as the reference basis for evaluating the degree of interference by wild boars.</p><strong> Key results</strong><p>The total survey effort was 1620 camera days, resulting in a total of 3451 independent detections. The silver pheasants showcased avoidance of both wild boars and human activities (avoidance–attraction ratios were both significantly greater than 1; <i>P</i> &lt; 0.05). The highest degree of temporal overlap was observed between silver pheasants and human activities (Δ = 0.711), followed by wild boars (Δ = 0.615). They both depicted a significant difference in temporal ecological niche differentiation (<i>P</i> &lt; 0.05).</p><strong> Conclusions</strong><p>Our results indicated that wild boars had a significant impact on the temporal resource utilisation of silver pheasants. The presence of wild boars significantly prolonged the recurrent reappearance time of silver pheasants in the same location. To avoid potential interference from wild boars, silver pheasants maximised activity frequencies during low activity periods of wild boars.</p><strong> Implications</strong><p>This study provides useful information for understanding the relationship between wild boars and other wildlife that inhabited the same areas. Future research will need to investigate both individual and combined impacts of wild boars and human activities on other wildlife.</p>","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"34 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138825153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Raccoon abundance indexing and removal: implications for Blanding’s turtle nest success 浣熊数量指数化和清除:对布兰登海龟筑巢成功率的影响
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-12-19 DOI: 10.1071/wr23075
Andrew U. Rutter, John P. Vanek, Gary A. Glowacki, Callie K. Golba, Richard B. King, Craig K. Pullins, Wesley E. Smith
{"title":"Raccoon abundance indexing and removal: implications for Blanding’s turtle nest success","authors":"Andrew U. Rutter, John P. Vanek, Gary A. Glowacki, Callie K. Golba, Richard B. King, Craig K. Pullins, Wesley E. Smith","doi":"10.1071/wr23075","DOIUrl":"https://doi.org/10.1071/wr23075","url":null,"abstract":"<strong> Context</strong><p>Elevated mesopredator populations can pose a threat to species of conservation concern.</p><strong> Aims</strong><p>We sought to evaluate the effectiveness of raccoon removal on their abundance and on Blanding’s turtle nest success.</p><strong> Methods</strong><p>We used an index of raccoon abundance generated from camera-trap data and information on the success of Blanding’s turtle nests to compare adjacent control and raccoon-removal sites.</p><strong> Key results</strong><p>Raccoon detections were more frequent and abundance index values were higher at control sites than at the removal site. However, Blanding’s turtle nest success did not differ between control and removal sites, likely because of differences in nest location and camera proximity.</p><strong> Conclusions</strong><p>The efficacy of raccoon removal for Blanding’s turtle conservation may vary with nest habitat characteristics and can benefit from a priori knowledge of nesting areas.</p><strong> Implications</strong><p>Mesopredator removal can be beneficial to species of conservation concern, provided it occurs in areas of greatest impact.</p>","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"81A 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138825155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Fighting the flames: site-specific effects determine species richness of Australian frogs after fire 扑灭火焰:特定地点的影响决定了火灾后澳大利亚青蛙物种的丰富性
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-12-19 DOI: 10.1071/wr22175
Brittany A. Mitchell, Simon B. Z. Gorta, Corey T. Callaghan, Richard T. Kingsford, Jodi J. L. Rowley
{"title":"Fighting the flames: site-specific effects determine species richness of Australian frogs after fire","authors":"Brittany A. Mitchell, Simon B. Z. Gorta, Corey T. Callaghan, Richard T. Kingsford, Jodi J. L. Rowley","doi":"10.1071/wr22175","DOIUrl":"https://doi.org/10.1071/wr22175","url":null,"abstract":"<strong> Context</strong><p>Fire has played an integral role in regulating patterns of biodiversity for millions of years. However, anthropogenic disturbance and climate change has altered fire activity – driving increases in both fire severity and scale. The effect fire now has on the persistence of biodiversity is poorly known, especially for frogs. Studies examining frog responses to fire usually have small sample sizes, focus upon small geographic areas and are based on low-severity fires, which can mean results are not applicable to high-severity fires, such as those expected under future climate change.</p><strong> Aims</strong><p>Our aims were to examine (1) persistence of frog species, measured by species richness, up to 18 months post-fire, and (2) the effects of varying fire severity on frog species richness and recovery, where we expected higher fire severity to lead to lower species richness after fire.</p><strong> Methods</strong><p>Using large-scale citizen science data from the Australian Museum’s FrogID project, coupled with remotely sensed fire data, we present a spatially and taxonomically broad analysis examining post-fire recovery responses for Australian frog species after the 2019/2020 ‘Black Summer’ bushfires.</p><strong> Key results</strong><p>We reveal no overall decrease in the species richness of Australian frogs both in the short- and long-term post-fire. Furthermore, species richness did not decline with increasing fire severity. Instead, species richness and its response to fire was highly site-specific.</p><strong> Conclusions</strong><p>We provide evidence that widespread and common Australian frog species have persisted post-fire in most sites and concluded that this is potentially due to their ability to shelter from fire adequately and/or La Niña-driven high rainfall offering conditions conducive to breeding activity and persistence.</p><strong> Implications</strong><p>We show how citizen science provides critical data for conservation, especially in response to unprecedented disturbance events, such as the 2019/2020 megafires. Our research also highlights the need for ongoing and targeted scientific monitoring, especially for less common or threatened species.</p>","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"2 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138825156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Ecology, impacts and management of wild deer in Australia 澳大利亚野鹿的生态学、影响和管理
3区 生物学
Wildlife Research Pub Date : 2023-09-11 DOI: 10.1071/wr23092
David M. Forsyth, Anthony Pople, Graham Nugent
{"title":"Ecology, impacts and management of wild deer in Australia","authors":"David M. Forsyth, Anthony Pople, Graham Nugent","doi":"10.1071/wr23092","DOIUrl":"https://doi.org/10.1071/wr23092","url":null,"abstract":"","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135983775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Diet and impacts of non-native fallow deer (Dama dama) on pastoral properties during severe drought 在严重干旱期间,非本地小鹿(Dama Dama)的饮食和对牧场性质的影响
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-07-31 DOI: 10.1071/WR22106
N. E. Davis, D. Forsyth, A. Bengsen
{"title":"Diet and impacts of non-native fallow deer (Dama dama) on pastoral properties during severe drought","authors":"N. E. Davis, D. Forsyth, A. Bengsen","doi":"10.1071/WR22106","DOIUrl":"https://doi.org/10.1071/WR22106","url":null,"abstract":"ABSTRACT Context There is concern about potential competition between non-native fallow deer (Dama dama) and livestock for food, particularly during times of low rainfall when pasture is scarce. Aim We aimed to estimate the extent to which a high-density fallow deer population (~37 deer per km2) competed with livestock for food during a severe drought on pastoral properties on the Liverpool Plains, New South Wales, Australia. Methods We collected rumen contents from 125 fallow deer shot from helicopters during control operations in June and August 2018, and used microhistology to quantify their diets. We then used the diet data to adjust published estimates of stock unit equivalence from farmed fallow deer. Fallow deer sex and age class abundances and stock unit equivalences were multiplied to estimate the grazing pressure of the fallow deer population pre- and post-control relative to recommended sheep and cattle stocking rates. Finally, we estimated density–impact relationships for fallow deer. Key results Fallow deer diet was dominated by monocots (primarily grasses), but some individuals consumed large amounts of dicots (commonly Eucalyptus). Fallow deer were grazers to intermediate mixed feeders. Fallow deer dry-sheep equivalents (DSEs, based on a 50-kg merino wether) varied from 1.01 (juveniles) to 1.85 (adult females and adult males). Assuming complete diet overlap, the pre-control fallow deer population was equivalent to approximately 60.3 DSEs per km2 and reduced the potential stocking rate of domestic livestock by 50.2%. Discounting the fallow deer DSEs by the amount of browse in the diet resulted in a pre-control population of 45.7 DSEs per km2. The helicopter-based shooting reduced the fallow deer population by 26%, increasing the stocking rate in natural pasture by 22.0% (complete overlap) or 13.8% (discounting for browse). Conclusions When food is limiting, fallow deer at high density can exert strong competitive pressure on livestock, reducing carrying capacity. Browsing, including on Eucalyptus, likely helped fallow deer to persist at high densities during the severe drought of 2018, when properties had destocked. Implications Helicopter-based shooting reduced the competitive effects of fallow deer on livestock in our study area to only a small extent, but more intensive shooting would have led to a greater reduction. The helicopter-based shooting of deer was received positively by landholders at a time of severe stress, suggesting that deer control in agricultural areas can have other important benefits.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"18 1","pages":"701 - 715"},"PeriodicalIF":1.9,"publicationDate":"2023-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88846457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Origins and population genetics of sambar deer (Cervus unicolor) introduced to Australia and New Zealand 引进澳大利亚和新西兰的桑巴鹿的起源和种群遗传学
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-07-20 DOI: 10.1071/WR22120
L. Rollins, Daniel Lees, A. Woolnough, Andrea J. West, M. Perry, D. Forsyth
{"title":"Origins and population genetics of sambar deer (Cervus unicolor) introduced to Australia and New Zealand","authors":"L. Rollins, Daniel Lees, A. Woolnough, Andrea J. West, M. Perry, D. Forsyth","doi":"10.1071/WR22120","DOIUrl":"https://doi.org/10.1071/WR22120","url":null,"abstract":"ABSTRACT Context Some populations of introduced species cause significant undesirable impacts but can also act as reservoirs for genetic diversity. Sambar deer (Cervus unicolor) are ‘Vulnerable’ in their native range and invasive in Australia and New Zealand. Genetic data can be used to determine whether these introduced populations might serve as genetic reservoirs for declining native populations and to identify spatial units for management. Aim We aimed to identify the provenance of sambar deer in Australia and New Zealand, and to characterise their genetic diversity and population structure. Methods We used mitochondrial control region sequences and 18 nuclear microsatellite loci of 24 New Zealand and 63 Australian sambar deer collected across continuous habitat in each location. We estimated genetic diversity and population differentiation by using pairwise FST, AMOVA, and structure analyses. We compared our data with 27 previously published native and invasive range sequences to identify phylogenetic relationships. Key results Sambar deer in Australia and New Zealand are genetically more similar to those in the west of the native range (South and Central Highlands of India, and Sri Lanka), than to those in the east (eastern India, and throughout Southeast Asia). Nuclear genetic diversity was lower than in the native range; only one mitochondrial haplotype was found in each introduced population. Australian and New Zealand sambar deer were genetically distinct but there was no population structure within either population. Conclusions The genetic differences we identified between these two introduced populations at putatively neutral loci indicate that there also may be underlying diversity at functional loci. The lack of population genetic structure that we found within introduced populations suggests that individuals within these populations do not experience barriers to dispersal across the areas sampled. Implications Although genetic diversity is reduced in the introduced range compared with the native range, sambar deer in Australia and New Zealand harbour unique genetic variants that could be used to strengthen genetic diversity in populations under threat in the native range. The apparent high levels of gene flow across the areas we sampled suggest that localised control is unlikely to be effective in Australia and New Zealand.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"48 1","pages":"716 - 727"},"PeriodicalIF":1.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76174270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A review of viral and parasitic infections in wild deer in Australia with relevance to livestock and human health 澳大利亚野鹿病毒和寄生虫感染与牲畜和人类健康的关系综述
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-07-11 DOI: 10.1071/WR22118
Jose L. Huaman, K. Helbig, T. Carvalho, Mark Doyle, J. Hampton, D. Forsyth, A. Pople, C. Pacioni
{"title":"A review of viral and parasitic infections in wild deer in Australia with relevance to livestock and human health","authors":"Jose L. Huaman, K. Helbig, T. Carvalho, Mark Doyle, J. Hampton, D. Forsyth, A. Pople, C. Pacioni","doi":"10.1071/WR22118","DOIUrl":"https://doi.org/10.1071/WR22118","url":null,"abstract":"ABSTRACT Wild animals harbour a diverse range of pathogens. In Europe and North America, cervids (Family Cervidae) can act as reservoirs for viral, prion, bacterial, and parasitic infections. Wild deer often inhabit agricultural land, therefore representing a biosecurity risk due to their potential ability to transmit diseases to livestock. Multiple studies have investigated the infection status of wild deer in Australia, mostly during the 1970s and 1980s, and deer populations have increased greatly in abundance and distribution since then. Those studies provide an important baseline for the pathogens carried by wild deer in Australia but are limited by small sample size, the small number of deer species studied, and the disease detection methods used. Recent investigations using ELISA (Enzyme-Linked Immunosorbent Assay), PCR-based assays, and next-generation sequencing have substantially increased our understanding of viral and parasitic infections in Australian deer. These studies indicate that deer may act as reservoirs for pathogens such as Pestivirus, Neospora caninum and Entamoeba bovis. The use of next-generation sequencing has led to the discovery of novel viruses such as Picobirnavirus and a novel species of the genus Bopivirus, both of which pose transmission risks for domestic animals. Recent research confirms that wild deer could be a future source of viral and parasitic infections for domestic livestock and other wildlife species.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"23 1","pages":"593 - 602"},"PeriodicalIF":1.9,"publicationDate":"2023-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81688387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Genetic analysis reveals spatial structure in an expanding introduced rusa deer population 遗传分析揭示了扩大引进鹿种群的空间结构
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-07-10 DOI: 10.1071/WR22128
Scarlett Li-Williams, Katarina C. Stuart, S. Comte, D. Forsyth, Michelle Dawson, W. Sherwin, L. Rollins
{"title":"Genetic analysis reveals spatial structure in an expanding introduced rusa deer population","authors":"Scarlett Li-Williams, Katarina C. Stuart, S. Comte, D. Forsyth, Michelle Dawson, W. Sherwin, L. Rollins","doi":"10.1071/WR22128","DOIUrl":"https://doi.org/10.1071/WR22128","url":null,"abstract":"ABSTRACT Context Rusa deer (Cervus timorensis), originally introduced in the 1860s, are still spreading in eastern Australia. The expanding peri-urban rusa deer population in the Illawarra region of New South Wales, Australia is having undesirable impacts on human and ecological communities, but the spatial structure of this population has not been investigated. Genetic information on invasive species is potentially useful in identifying management units to mitigate undesirable impacts. Aim The aim of this study was to investigate population structure, characterise dispersal, and determine if natural and human-made landscape features affected gene flow in rusa deer invading the Illawarra region of New South Wales. Methods We used reduced representation sequencing (DArT-Seq) to analyse single nucleotide polymorphisms distributed throughout the genomic DNA of rusa deer culled during a management program. We used admixture and Principal Component Analyses to investigate population structure with respect to natural and human-made landscape features, and we investigated whether our genetic data supported the presence of sex-biased dispersal. Key results Genetic diversity was highest in the north, near the original introduction site. A railway line demarcated restricted gene flow. Surprisingly, the Illawarra escarpment, a prominent landscape feature, did not restrict gene flow. There was no evidence of sex-biased dispersal and seven individuals were identified as genetic outliers. Conclusions The genetic structure of the Illawarra rusa deer population is consistent with individuals spreading south from their introduction site in Royal National Park. The population is not panmictic, and a landscape feature associated with urbanisation was associated with increased spatial genetic structure. Outliers could indicate hybridisation or secondary incursion events. Implications Rusa deer can be expected to continue invading southwards in the Illawarra region, but landscape features associated with urbanisation might reduce dispersal across the landscape. The genetic structuring of the population identified three potential management units on which to prioritise ground shooting operations.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"9 1","pages":"757 - 769"},"PeriodicalIF":1.9,"publicationDate":"2023-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83435549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Hybridisation rates, population structure, and dispersal of sambar deer (Cervus unicolor) and rusa deer (Cervus timorensis) in south-eastern Australia 澳洲东南部黑鹿(Cervus unicolor)和红鹿(Cervus timorensis)的杂交率、种群结构和分布
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-07-06 DOI: 10.1071/WR22129
E. Hill, N. Murphy, Scarlett Li-Williams, C. Davies, D. Forsyth, S. Comte, L. Rollins, F. Hogan, Faye Wedrowicz, Troy Crittle, E. Thomas, Luke Woodford, C. Pacioni
{"title":"Hybridisation rates, population structure, and dispersal of sambar deer (Cervus unicolor) and rusa deer (Cervus timorensis) in south-eastern Australia","authors":"E. Hill, N. Murphy, Scarlett Li-Williams, C. Davies, D. Forsyth, S. Comte, L. Rollins, F. Hogan, Faye Wedrowicz, Troy Crittle, E. Thomas, Luke Woodford, C. Pacioni","doi":"10.1071/WR22129","DOIUrl":"https://doi.org/10.1071/WR22129","url":null,"abstract":"ABSTRACT Context Introduced populations of sambar deer (Cervus unicolor) and rusa deer (Cervus timorensis) are present across south-eastern Australia and are subject to local population control to alleviate their negative impacts. For management to be effective, identification of dispersal capability and management units is necessary. These species also readily hybridise, so additional investigation of hybridisation rates across their distributions is necessary to understand the interactions between the two species. Aim Measure the hybridisation rate of sambar and rusa deer, assess broad-scale population structure present within both species and identify distinct management units for future population control, and measure the likely dispersal capability of both species. Methods In total, 198 sambar deer, 189 rusa deer, and three suspected hybrid samples were collected across Victoria and New South Wales (NSW). After sequencing and filtering, 14 099 polymorphic single-nucleotide polymorphism (SNP) markers were retained for analysis. Hybridisation rates were assessed before the data were split by species to identify population structure, diversity indices, and dispersal distances. Key results Across the entire dataset, 17 hybrids were detected. Broad-scale population structure was evident in sambar deer, but not among the sites where rusa deer were sampled. Analysis of dispersal ability showed that a majority of deer movement occurred within 20 km in both species, suggesting limited dispersal. Conclusions Distinct management units of sambar deer can be identified from the dataset, allowing independent population control. Although broad-scale population structure was not evident in the rusa deer populations, dispersal limits identified suggest that rusa deer sites sampled in this study could be managed separately. Sambar × rusa deer hybrids are present in both Victoria and NSW and can be difficult to detect on the basis of morphology alone. Implications Genetic analysis can identify broad-scale management units necessary for population control, and estimates of dispersal capability can assist in delineating management units where broad-scale population structure may not be apparent. The negative impacts associated with hybridisation require further investigation to determine whether removal of hybrids should be considered a priority management aim.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"5 1","pages":"669 - 687"},"PeriodicalIF":1.9,"publicationDate":"2023-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90384970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Impacts of wild pigs on acorn availability as a food source for native wildlife 野猪对橡子作为本地野生动物食物来源的影响
IF 1.9 3区 生物学
Wildlife Research Pub Date : 2023-06-29 DOI: 10.1071/wr22146
Arielle S. Fay, Stephen J. Zenas, Mark D Smith, S. Ditchkoff
{"title":"Impacts of wild pigs on acorn availability as a food source for native wildlife","authors":"Arielle S. Fay, Stephen J. Zenas, Mark D Smith, S. Ditchkoff","doi":"10.1071/wr22146","DOIUrl":"https://doi.org/10.1071/wr22146","url":null,"abstract":"ABSTRACT Context. Wild pigs (Sus scrofa) are a non-native invasive species that causes millions of dollars in damage each year to agriculture in the United States of America, destroys native plant communities, and competes with native wildlife for seasonally available pulse resources such as acorns. Despite many anecdotal observations and diet studies suggesting wild pigs reduce acorn availability for other wildlife species, no studies have comparatively examined acorn consumption among species in a natural environment (i.e. competition). Aims. Our objective was to estimate the consumption of acorns by wild pigs relative to that of other native wildlife species. Methods We established 40 monitoring stations beneath acorn-producing trees in a 3406-ha study area in eastern Alabama with an approximate density of 9 pigs/km2. At each monitoring station, we placed five acorns on a 1-m × 1-m sand pad and positioned a game camera to record acorn fate during 2-week intervals once a month from September to February 2018–2019 and 2019–2020. Cameras were set to capture images once every minute continuously during the survey period. Additionally, we constructed acorn traps from 18.9-L plastic buckets to estimate the timing and relative amounts of acorns that were potentially available for consumption at each monitoring station. Key results From approximately 7.3 million camera images, we observed 15 wildlife species consuming 707 acorns over the 2 years. Aside from animal consumption, acorn fate was categorised as lost due to flooding (n = 153), remaining on the sand pad at time of camera failure (n = 720), or not consumed during the sampling period (n = 536). Key conclusions Top acorn consumers were squirrel (Sciurus spp.), white-tailed deer (Odocoileus virginianus), raccoon (Procyon lotor), and wild pig. In the 2018–2019 sampling period, wild pigs consumption accounted for 23.4% (n = 87) of the total consumed acorns. After wild pig removal efforts were initiated in the summer and autumn of 2019, wild pigs consumed only 7.2% (n = 24) of consumed acorns. Implications Wild pigs consume a significant number of acorns and likely reduce the availability of this pulse resource for other native wildlife species and may potentially influence oak regeneration.","PeriodicalId":23971,"journal":{"name":"Wildlife Research","volume":"234 1","pages":"1123 - 1130"},"PeriodicalIF":1.9,"publicationDate":"2023-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72906618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信