Hunting Activities Research Articles

Optimum Generation Scheduling of Thermal and Hydro Power System with Renewable Power Sources Using Enhanced Grey Wolf Optimization Algorithm

In this work, an algorithm of enhanced grey wolf optimization (EGWO) is developed to resolve the scheduling problem of a power system, which is having thermal, hydro, wind, and solar power plants with a battery energy storing system (BESS). The planning period covers 24 equal intervals of a day. In this scheduling problem, the impact on valve point loading of thermal plants, the time coupling effect in cascaded reservoirs of hydro units, and various constraints imposed on the power network are taken into consideration. The grey wolf optimization (GWO) technique is used, which is framed on the group attitude of grey wolves such as governance ranking and hunting activity. In this proposed algorithm, GWO algorithm is enhanced using three techniques. First, the quasi-oppositional learning approach is exploited to obtain the optimal solution quickly. Second, the elite mutation operator is applied to maximize the diversity of the swarm. Finally, by implementing the elastic-ball strategy, infeasible solutions are modified into feasible one. The potential of the EGWO technique is ascertained by employing it in two experimental settings. From the simulation outcome, it is inferred that the implemented technique bestows less operating cost with minimal computation time as compared to other evolutionary techniques.

Traditions and innovations in nutrition of the Sysolsky Komi in the first half of the 20th century

Based on the analysis of original field materials, a characteristic of traditions and innovations in the subsis-tence system of Sysolsky Komi living in the southern regions of the Komi Republic has been provided. By the beginning of the 20th c., the most successful model of the integrated economy was formed among the Sysolsky Komi of the southern regions, which, along with agriculture and animal husbandry, retained hunting and fishing. Natural and climatic conditions did not always allow a good harvest of grain crops, and their shortage was com-pensated through trading operations, while hunting and fishing activities provided the opportunity to purchase grain. The basis of nutrition was cereals, from which bakery products, porridges, soups and drinks were prepared. Dishes of meat, dairy and fishing/hunting products were not served often, which was associated with the practice of observing Christian fasts, the number of which exceeded 200 days within a year. The forest products provided the overall diversity to the diet and in particular nutrition with a vitamin complex. The technology of cooking was predetermined by the presence of an oven which can bake, boil, stew and deep fry, while frying as a cooking method would be difficult to perform. The formed grain-meat-dairy model of nutrition with the inclusion of hun-ting/fishing products and wild plants is close to the cuisine of the Priluzsky Komi in terms of the composition of raw products and dishes, which can be explained by the territorial proximity of their habitats. However, a unique phenomenon of the Sysolsky Komi is the preservation of the practice of baking ritual Christmas cookies. Socio-economic transformations in the country in subsequent years brought innovations to the food culture. The main role in the food provision of a family with was played, as before, by subsidiary farming; crop yields and livestock productivity were significantly higher than in the collective farm-state system. The increase of areas for potato cultivation and the reduction of areas for crop cultivation led to the replacement of grains by potatoes. Hunting and fishing products was significantly reduced in the diet. Innovative practices included the method of salting shredded cabbage, as well as the practice of cooking freshwater fish with potatoes in milk sour cream sauce, and brewing purchased dry-salted cod. The nutrition model during the Great Patriotic War can be defined as potato and vegetable with the inclusion of wild plants, and natural resources made it possible to keep the minimal level of food consumption during this period. In fact, produce from the forest allowed a minimum level of product con-sumption, while innovations in food traditions became means for overcoming crisis periods in food supply.

DISTRIBUTION OF THE MUSKRAT (ONDATRA ZIBETHICUS L.) AND THE AMERICAN MINK (NEOVISON VISON SCHREBER) IN YAKUTIA (NORTHEASTERN ASIA, RUSSIA)

This paper discusses the results of the introduction of the muskrat and American mink in Yakutia (Russia). The time course of harvesting of muskrat skins during an eighty-one-year period (1941-2021) is also analyzed. A map of quantitative distribution of muskrats in Yakutia was constructed on the basis of the harvesting data. The work on muskrat introduction was described within the framework of hunting activities of unitary enterprise of Sakhabult Financial Agro-Industrial Concern in 2002-2004, when 975 muskrats were resettled in the republic, including 60 animals brought from Altai Krai. Data on the abundance and occurrence of the American mink in Yakutia are provided, and the modern geographic range of this animal is outlined. Information about the introduction of 337 American minks in 1985-1986 by Ust-Mayskiy State Hunting/Fishery Enterprise in the basins of the rivers Maya and Khamna is given.

Hunting introduced species in Indonesia New Guinea

Abstract. Pattiselanno F, Tokede MJ, Arobaya AYS, Mardiatmoko G, Pattiselanno AE. 2023. Hunting introduced species in Indonesia New Guinea. Biodiversitas 24: 3045-3050. Hunting in tropical forests is mostly performed to obtain animal protein sources, generate income, and enact cultural activities. However, it is acknowledged that hunting was conducted indiscriminately, killing both native and introduced species. This study aimed to describe hunting activities along the lowland coastal forests in Tambrauw Districts. Fieldwork was carried out between June 2011 and December 2012 in eleven villages across the Abun and Amberbaken sub districts of Tambrauw Districts, Papua Barat Province of Indonesia. Information about hunting was gathered through interviews with 220 hunters (focus respondents; 20 hunters in each village). Therefore, to gain an overall picture of hunting in the sampled villages, we distributed 100 questionnaires, not including those focal respondents, and 800 were returned from 11 villages. This study revealed hunting for trading (49%) compared to consumption (44%) and the rest (7%) hunting for others (festive, pest, and trophy). The hunting is classified as very frequent (2-3 days per week) by 10%, frequent (weekly and fortnightly) by 41%, and rarely (monthly) by 49% of hunters. Active techniques used were bows and arrows, spears and blades were primarily used by 38%, and hunting with dogs was 29% by inhabitants in the studied villages. On the other hand, passive hunting using snares and guns were used by 28% and 5% of hunters, respectively. Hunters reported nine main prey species had been hunted, and the prey consisted of six mammal and three bird species. Two of the nine species were introduced species, i.e., rusa deer and wild pig; they provided the largest amount of meat and fat and were economically profitable. Other native species were also hunted, although not much as introduced ones. The average catch per hunting trip was 2 individuals (2.42 ± SD 1.93). In this study, hunting introduced species is important because it is more profitable while protecting the native species or those of conservation concern.

"Cold deficiency" and degradation of permafrost soils as a factor of transformation of hunting activity among the Yakuts

One of the most important global problems of the XXI century is climate change. Every year, in some parts of the world, a decrease in annual precipitation and temperature is recorded, in others, on the contrary, an increase. These fluctuations can cause droughts, floods and degradation of permafrost soils. Further climate change may cause irreparable damage to traditional farming methods and adversely affect housing conditions in many regions of the globe. Thus, climate change can complicate and disrupt the established order of life and activity of the population of the Republic of Sakha (Yakutia). This paper highlights a problem that has not been specifically studied before, and which concerns all hunters of the republic, the impact of climate change on hunting activities. The work is based on field materials collected by Vilyuysky and Tattinsky districts. Field materials were collected by audio, photo and video recording, in-depth interviewing and included observation during field work in the Vilyuysky and Tattinsky districts of the Republic of Sakha (Yakutia). In earlier scientific works research was conducted separately on the topic of the impact of climate change on the daily life and economic activities of the Yakuts, in this work hunting activity was considered. Hunters who participated in the research adapt to the changing climate in various ways: they increase the range of hunting area, equip trips over longer distances than before, learn to re-read changes in weather conditions, manufacture and use various devices for hunting and storage. The main conclusions of the research are that climatic changes directly or indirectly affect hunting activities in the studied areas: ordinary amateur hunters note that the habitat of animals is changing, roads are being destroyed, the soil of hunting grounds is degrading, there is a danger of the spread of various diseases.

Hunting and seagrass affect fall stopover Canada goose distribution in eastern Canada

AbstractCanada geese (Branta canadensis) migrating along coastal flyways are reliant on natural coastal ecosystems. Within these stopover sites, eelgrass (Zostera marina), the most common and widespread seagrass species in North America, is an important food resource for migrating waterfowl. Given the growing anthropogenic pressure on coastal ecosystems, geese migrating along coastal regions may find it increasingly difficult to access suitable stopover sites where food is abundant and human disturbance is low. We assessed the influence of hunting and eelgrass on the spatiotemporal distribution of Canada geese in the Tabusintac Bay, New Brunswick, Canada, a wetland of international importance. We surveyed Canada geese at 6 stations from mid‐September to late October, 2016 and 2017. We used 2‐part hurdle models consisting of generalized linear mixed models with binomial and negative binomial response distributions to model Canada geese presence and abundance, respectively, in relation to eelgrass abundance, distance to the mainland coastline, water depth, and tidal conditions in 3 different hunting intensity periods. Eelgrass abundance is a significant predictor of Canada geese presence early in the season, when hunting activity is low. At the onset of the hunting period, geese shifted diurnal distribution to areas farther offshore, indicating a response to avoid disturbance, and the abundance of Canada geese increased with increasing eelgrass availability, emphasizing the importance of eelgrass as a food source during fall migration in that region. Thus, our results highlight the effects of human disturbance and eelgrass abundance in influencing stopover behavior of Canada geese during fall migration in eastern Canada.

Risk Factor Impact on African Swine Fever Transmission in Different Extensive Pig Production Settings in Serbia.

The first case of ASF in a domestic pig population in Serbia was confirmed in 2019 in a backyard population. Today, outbreaks in wild boar and, more importantly, in domestic pigs are still occurring, although the government measures for ASF prevention are in place. The aim of this study was to determine critical risk factors and identify the possible reasons for ASF introduction into different extensive pig farms. The study was conducted on 26 extensive pig farms with confirmed ASF outbreaks, with data collected from beginning of 2020 to the end of 2022. Collected epidemiological data were divided into 21 main categories. After identifying specific values of variables as critical for ASF transmission, we identified nine important ASF transmission indicators as those variables for which at least 2/3 of the observed farms reported values critical for ASF transmission. Among them were type of holding, distance to hunting ground, farm/yard fencing, and home slaughtering; however, the hunting activity of pig holders, swill feeding, and feeding with mowed green mass were not included. We represented the data in the form of contingency tables to study associations between pairs of variables using Fisher's exact test. All pairs of variables in the group including type of holding, farm/yard fencing, domestic pig-wild boar contact, and hunting activity were significantly related; hunting activity of pig holders, holding pigs in backyards, unfenced yards, and domestic pig-wild boar contact were observed on the same farms. Free-range pig farming led to observed domestic pig-wild boar contact on all farms. The identified critical risk factors need to be strictly addressed to prevent the further spread of ASF to extensive farms and backyards in Serbia and elsewhere.

MAMMALS AND BIRD CONSERVATION STRATEGIES THROUGH COMMUNITY-BASED WILDLIFE WATCHING ECOTOURISM DEVELOPMENT IN PERHUTANI AREA IN PONCOKUSUMO, MALANG DISTRICT, EAST JAVA

Perhutani area in Poncokusumo is inhabited by endemic and protected mammals and birds. However the data of the species are still lacking while the wildlife is threatened by forest conversion and hunting activities. Â This study aims to determine mammals and bird conservation strategies through wildlife watching ecotourism based on community. The objectives are survey mammals and birds species in the Perhutani area in Poncokusumo, analyze the perception and knowledge of the community and visitors toward wildlife, analyze local people and visitors perception on idea to develop wildlife watching ecotourism and conducted SWOT analysis to formulate mammals and birds conservation strategy through wildlife watching ecotourism based on local community. The results showed that the Perhutani forest in Poncokusumo has 13 species of mammals and 54 species of birds and included in the category with very good quality of fauna diversity. Local people and visitor perceptions towards mammals and birds are vary, but most of the respondents are support the idea of developing wildlife watching ecotourism. From the SWOT analysis result, there are 5 strategic recommendations. This study suggest that mammals and birds conservation through idea in developing wildlife watching ecotourism based on community in perhutani area of Poncokusumo is possible to be applied.

Spatial Distribution of Hunting and Its Potential Effect on Browsing Impact of Roe Deer (Capreolus capreolus) on Forest Vegetation

Increasing numbers of wild ungulates in human-dominated landscapes in Europe could lead to negative effects, such as damages to forests through browsing. To prevent those effects and, thus, mitigate wildlife-based conflicts while ensuring viable ungulate populations, sustainable management is required. Roe deer, as the most abundant cervid species in Europe, is primarily managed via hunting to decrease population densities through harvesting. Besides direct mortality, non-lethal effects of hunting activities further affect the spatial habitat selection for this species. Accordingly, the spatial distribution of hunting locations might influence game impact on forest vegetation. To examine these relationships in more detail, we linked the spatial distribution of hunting locations for roe deer with forest damage through browsing in 20 regions in Upper Austria. Consistent with our hypothesis, an avoidance of forests by hunters was found in regions with <20% forest cover and intolerable browsing impact. When hunters in certain regions, however, used forests according to their availability, game impact on forest vegetation was tolerable. Although forest damage by ungulates depends on numerous factors, we conclude that careful consideration of hunting locations might be an additional approach to reduce browsing intensity by roe deer, at least in regions with low forest cover.

Hepatitis E Virus RNA Detection from Hunted Wild Boars in Central Italy: an Epidemiological Investigation

Every year, foodborne pathogens, including the hepatitis E virus (HEV), cause thousands of infections in different continents. Final consumers become infected through the ingestion of contaminated animal origin foodstuffs. Generally, in industrialized countries, HEV genotype 3 is involved in sporadic outbreaks. Infections have been described, in Europe and Japan as consequence of pork products and contaminated wild boar’s primary or processed products (liver and muscle tissues) consumption. In Central Italy, hunting activities are largely practiced. In these small and rural communities, game meat and liver are ingested by hunters’ families or at local and traditional restaurants. Therefore, these food chains can be considered critical HEV reservoirs. In this study, 506 liver and diaphragm tissues were collected from hunted wild boars in the Southern Marche region (Central Italy) and were screened for HEV RNA detection. From the 10.87% of liver and 2.76% of muscle samples, HEV3 subtype c was discovered. The observed prevalence values resulted in line with previous investigations performed in other Central Italian regions, but higher than Northern ones (3.7% and 1.9% from liver tissue). Therefore, the obtained epidemiological data highlighted the wide occurrence of HEV RNA circulation in a low-investigated area. Basing on results, a One-health approach was adopted due to the sanitary relevance of this Public Health concern.

Habitat management favouring hunted waterbird species prevents distribution changes in response to climate warming

AbstractClimate warming is driving species to shift their geographical distribution poleward to track suitable climatic conditions. Two strategies have been suggested to help species respond to climate warming: facilitating distribution change or improving persistence. We questioned whether habitat management in favour of duck hunting activities interacted with duck responses to climate warming. We studied non‐breeding waterbird community changes (110 species) over 28 years at 851 sites in South‐West Europe, where habitat management is a common practice to attract and hunt ducks. We hypothesized that duck species targeted by habitat management do not need to track temperature changes as much as non‐hunted species, because of the availability of suitable habitats provided by hunting land managers. We used the community temperature index (CTI) to assess the temporal responses of communities and species to climate warming. We compared the effect of hunting status with other functional traits on species responses, controlling for phylogenetic relatedness. The CTI trend has increased over the study period, indicating a community adjustment to climate warming. However, hunted ducks contributed to almost 40% of the negative contributions to this community adjustment, suggesting that hunted ducks do not shift their distribution as much as the other waterbirds do. Winter fidelity associated with the provision of attractive feeding grounds might explain why ducks did not seem to shift their distribution in response to climate warming. This study suggests the broad impact of human activities on wildlife, including on large‐scale distribution processes, and questions the long‐term consequences on duck populations.

Identifying Potential Super-Spreaders and Disease Transmission Hotspots Using White-Tailed Deer Scraping Networks.

White-tailed deer (Odocoileus virginianus, WTD) spread communicable diseases such the zoonotic coronavirus SARS-CoV-2, which is a major public health concern, and chronic wasting disease (CWD), a fatal, highly contagious prion disease occurring in cervids. Currently, it is not well understood how WTD are spreading these diseases. In this paper, we speculate that "super-spreaders" mediate disease transmission via direct social interactions and indirectly via body fluids exchanged at scrape sites. Super-spreaders are infected individuals that infect more contacts than other infectious individuals within a population. In this study, we used network analysis from scrape visitation data to identify potential super-spreaders among multiple communities of a rural WTD herd. We combined local network communities to form a large region-wide social network consisting of 96 male WTD. Analysis of WTD bachelor groups and random network modeling demonstrated that scraping networks depict real social networks, allowing detection of direct and indirect contacts, which could spread diseases. Using this regional network, we model three major types of potential super-spreaders of communicable disease: in-degree, out-degree, and betweenness potential super-spreaders. We found out-degree and betweenness potential super-spreaders to be critical for disease transmission across multiple communities. Analysis of age structure revealed that potential super-spreaders were mostly young males, less than 2.5 years of age. We also used social network analysis to measure the outbreak potential across the landscape using a new technique to locate disease transmission hotspots. To model indirect transmission risk, we developed the first scrape-to-scrape network model demonstrating connectivity of scrape sites. Comparing scrape betweenness scores allowed us to locate high-risk transmission crossroads between communities. We also monitored predator activity, hunting activity, and hunter harvests to better understand how predation influences social networks and potential disease transmission. We found that predator activity significantly influenced the age structure of scraping communities. We assessed disease-management strategies by social-network modeling using hunter harvests or removal of potential super-spreaders, which fragmented WTD social networks reducing the potential spread of disease. Overall, this study demonstrates a model capable of predicting potential super-spreaders of diseases, outlines methods to locate transmission hotspots and community crossroads, and provides new insight for disease management and outbreak prevention strategies.

Threatened Species of Amphibians and Reptiles from Son La Province and Their Conservation Values

From the field survey research between 2012 and 2021, we herein provide a list of 39 threatened species of amphibians and reptiles from Son La Province. Of these, the following species have high conservation values: two species are listed in the Governmental Decree No. 64/2019/ND-CP, 12 species are listed in the Governmental Decree No. 84/2021/ND-CP, 12 species are listed in the CITES Appendices, 22 species are listed in the Vietnam Red Data Book (2007), and 24 species are listed in the IUCN Red List (2022). In addition, 21 species are being exploited for food and wildlife trade by local people. Major threats to the habitat and populations of amphibians and reptiles in the study areas include deforestation, slash-and-burn cultivation, hunting activities, exploitation of forest products, quarrying, hydropower and road construction, as well as overharvesting for food and trade. The research results provide a scientific base for conservation and management of amphibians, reptiles and biodiversity of Son La Province.
 

TRENDS AND PATTERNS OF ILLEGAL WILDLIFE HUNTING AND TRADING IN UTTAR PRADESH, INDIA

Wildlife trade, poaching and its use is characterized as wildlife crime, also it has become a global problem. The illegal wildlife trade is a increasing problem driven by the number of factors (e.g. alternative medicine, accessories and subsistence). High demand for illicit wildlife products is threatening the existence of many of the most of d species. Enquiring and investigating crime hotspots include analyzing the enforcement of law and seizure data, highlighting areas with high biodiversity has been studied here. In this present study, we have analyzed wildlife crime hotspot in different districts/ divisions of Uttar Pradesh, India from 2012 to 2021.Basically, we have extracted the data which include information on trafficking, illegal possessions, breaking hunting and poaching laws and exploitation, illegal scientific collections, and information from mass media. In results, study support the understanding that the reports of illegal trade are underestimates. This research helps to gain the understanding the exact reason to the problem. This study also supports to inform policies and strategies to combat the poaching and hunting activities that affect wildlife in regions with high biodiversity. Moreover, this also provides the first detailed state of assessment on illegal trade and hunting in Uttar Pradesh. The analysis done suggests trade in wildlife in protected areas of 12 districts of Uttar Pradesh and hike in trade of mammalian species, like Indian Pangolin, and leopard. In addition, the seizure reported more often in different districts and areas bordering Nepal, China, and gulf countries. This states that well-organized illegal wildlife trade and associations taking place in Uttar Pradesh and gulf countries act as both a source and a transit country.

Human-nature relationships and its implications on the management of eastern arc water catchments of Tanzania

ABSTRACT This study is aimed at understanding the Human–Nature Relationships (HNRs) in the Lower Mngeta and Upper Zigi catchments, as parts of Eastern Arc water catchment areas, in the United Republic of Tanzania. This study employed the Theory of Planned Behavior (TPB) and Norm-Activation Model (NAM) to understand the position of humans in the two catchments’ ecosystems. The study design involved Focus Group Discussions, Key Informant Interview, and Household Questionnaire Surveys. A total of 310 (185 males and 125 females) villagers were involved in this study. Furthermore, four HRN typologies, master over nature, partner with nature, a participant in nature, and steward of nature, were adopted. The study findings indicated that there was no significant difference (X 2 test, p > 0.05) in HNRs between the two catchments. Moreover, master over nature typology was dominant in both catchments, with values of 59.4% (n = 200) and 59.5% (n = 85) in Lower Mngeta and Upper Zigi, respectively. The main reason is that HNR is dependent on the nature of the livelihood activities and the mode of subsistence of a particular community. It was also found that the communities in Lower Mngeta and Upper Zigi catchments are mostly dependent on agricultural and hunting activities that highly depended on the two catchment resources. This study, therefore, recommends an increase in the level of community participation in all decision-making activities, as well as an increase in environmental education for sustainable utilization and management of the two catchment resources.

Current sika deer effective population size is near to reaching its historically highest level in the Japanese archipelago by release from hunting rather than climate change and top predator extinction

Deer species were repeatedly overexploited and protected for their meat and fur and they had strong impacts on ecosystems and human society by damaging crops and planted trees, altering vegetation, deer vehicle collision, and increasing ticks that vector zoonosis. To accomplish appropriate population management, the historical demography and its main driver need to be clarified. In this study, we estimated the historical demography of effective population size ( Ne) of sika deer ( Cervus nippon Temminck) in Hokkaido and Hyogo Prefectures of the Japanese archipelago. We estimated Ne of >100 generations from present (2020) by folded single nucleotide polymorphisms (SNP) frequency spectra and, within 100 generations from present, by linkage disequilibrium between SNP. In Hokkaido, Ne drastically increased around 3.0 ky BP and decreased around 100–150 years ago with the assumption of their generation length as 4 or 9 years. The Ne decreased by a 10th before the recent bottleneck. In Hyogo, Ne increased around 80 and 1 ky BP and decreased around 100–250 years ago. Ne decreased by a 100th before the recent bottleneck. After these recent bottlenecks, Ne of both regions recovered and the current Ne has nearly reaches the highest level of the last 100 ky BP. Literature survey and paleoclimate indicates that the decrease and increase of Ne of sika deer in Japanese archipelago may be caused by variations in the hunting activity of humans rather than climate change or the top predator extinction.

Guatemalan Maya Q’eqchi’ Seasonal Calendar: Methods to Monitor Climate Change Locally

Maya Q’eqchi’ villagers of Alta Verapaz, Guatemala fathom local indicators of climate change keenly. In a small-holder, maize-based, horticultural village, ethnographic interviews with village experts in hunting, agricultural production, and animal husbandry, and with non-expert/lay villagers recounted that many local climate- and subsistence-related activities and some traditional ecological knowledge (TEK) correspond to annual cycles or seasons. This research documents the local queues and timing of residents’ practices as a baseline for monitoring subsequent years’ activities and climate-related observations based on our interpretation of emic views, practices, and traditions. Using focus groups, we collected such traditional indicators to design a visual representation of a seasonal calendar, which we present herein. This seasonal calendar is a locally accessible tool to document monthly climate observations, agricultural and home garden activities, hunting, animal raising, and cultural activities during a complete annual cycle. We supplement observational and focus group data with semi-structured interview data about subsequent changes in weather patterns, which villagers identify as resulting from climate change. We suggest that Maya Q’eqchi’ villagers are active in their acknowledgment of climate change and are taking steps to document its effects on locally significant cultural activities, exemplifying Q’eqchi’ cultural capacity to adapt to ecological changes and to promote local resilience and cultural vitality. We demonstrate how seasonal calendars and the methods to create them may contribute to local and global understandings of TEK and climate change and annotate conventional anthropological methods as considerations for creating seasonal calendars in other cultural and ecological communities.

New radiocarbon dates and the prehistoric human occupation at the Lake Qinghai Basin, northeast Tibetan Plateau

The Tibetan Plateau is known as the rooftop of the planet. Its hypoxic atmosphere in low oxygen partial pressure, extreme seasonal climate variation, and aridity poses severe challenges as harsh living environments for prehistoric human to occupy in such high-altitude niches. However, the Lake Qinghai is the largest lake on the Tibetan Plateau and the basin has rich water, mineral, and wild food resources, and prehistoric human occupied the Lake Qinghai Basin long before local farming was in practice. In this paper we present results of faunal assemblages associated with variable stone artifacts and pottery shards with bone collagen accelerator mass spectrometry radiocarbon (AMS 14C) dates from 3 new archaeological sites to investigate human occupation history in the southern Lake Qinghai Basin. The AMS 14C dating results reveal that the occupation occurs intermittently from the late Glacial to entire Holocene. Through compilation and synthesis of regional archaeological records, we found that prehistoric humans went through 3 phases of subsistence strategies: 1) hunting large and medium ungulates; 2) hunting medium ungulates; 3) foraging small size mammals with birds and fish diets. At the end, prehistoric humans increasingly adapted to forage and consume caprinaes species (goat), which represents a precursor of domestication or semi-domestication of wild animals in the Lake Qinghai Basin. We further attribute the utilization of caprinaes animal resources to the lower limbs of toe and phalange bones with low nutritious values to advanced social organization that implied prehistoric humans separated hunting activity from protein processing practices. Our investigation of zooarchaeology with reliable bone collagen AMS 14C dates could become a novel approach to study adaptation strategy and social structure changes of prehistorical Tibetan humans.

Elite Collaboration Model in Prevention and Handling of COVID-19 in DKI Jakarta

Now many teenage children have participated in pig hunting activities in Nagari Anduring District 2X11 Kayutanam. Such teenage children are highly motivated towards hunting pigs. The high motivation of adolescent children towards pig hunting lacks the support of adult pig-hunting participants. This study describes the motor activities of adolescents, pig hunting recreational activities for adolescents, adolescent social activities in pig hunting, and motivation of adolescents to participate in pig hunting. This research uses a qualitative approach, the data collection methods used are observation, interviews, and documentation. The sampling technique uses total sampling. The population in this study was all adolescent children and participants who participated in pig hunting in Nagari Anduriang, District 2X11 Kayutanam, Padang Pariaman Regency, which consisted of 15 adolescent children and 25 adults. The data collection of this study was obtained using observation, interviews, and questionnaires. The results showed that the motivations of adolescents to participate in the traditional sport of pig hunting in Nagari Anduring are: 1) Motor activities of adolescents in pig hunting activities. 2) Make pig hunting activities recreational activities for adolescents. 3) Social activities of adolescents in pig hunting activities. 4) Very high motivation of adolescent children in pig hunting activities.

Are we hunting bats to extinction? Worldwide patterns of hunting risk in bats are driven by species ecology and regional economics

Bats are routinely neglected in conservation, often regarded as uncharismatic and constantly maligned despite their provision of economic and ecosystem services. Yet many species are threatened, and while the loss of roosting and foraging habitat has been explored, the impacts of hunting on species survival are less well understood. Here, we analysed the hunting risk of 1320 bat species (of 1400 known) from around the world and explored the association between ecological traits and socioeconomic variables. Globally, at least 19 % of species are threatened by hunting. Large-bodied bats with narrow distributions are at increased risk of hunting, particularly in tropical regions. Multiple threats, such as habitat loss and modification, are likely to exacerbate the pressures experienced by hunted species. Furthermore, accessibility to bat habitats and low-income drive bat hunting in developing countries. With the global economic recession and the need for economic recovery following the pandemic, hunters may rely more on wildlife for subsistence and pose a threat to both biodiversity and public health. Achieving the balance between economics and conserving biodiversity is challenging due to socioeconomic factors, and the complex interplay of different forms of threat. Therefore, interventions to reduce bat hunting activities should include greater investment to facilitate sustainable livelihood development in the rural economy, and elevating public knowledge about bat ecosystem services, and their potential role in the transmission of zoonotic diseases.