Protozoa are well-known inhabitants of the mammalian gut and so of the gut microbiome. While there has been extensive study of a number of species of gut protozoa in laboratory animals, particularly rodents, the biology of the gut protozoa of wild rodents is much less well-known. Here we have systematically searched the published literature to describe the gut protozoa of wild rodents, in total finding records of 44 genera of protozoa infecting 228 rodent host species. We then undertook meta-analyses that estimated the overall prevalence of gut protozoa in wild rodents to be 24%, with significant variation in prevalence among some host species. We investigated how host traits may affect protozoa prevalence, finding that for some host lifestyles some protozoa differed in their prevalence. This synthesis of existing data on wild rodent gut protozoa provides a better understanding of the biology of these common gut inhabitants and suggests directions for their future study.

Peanut (Arachis hypogaea L.) is an important row crop rich in oil, protein, vitamins and other micro-nutrients. The intensive selection of the cultigen, a cultivated plant deliberately altered by humans through cultivation, has resulted in favourable changes in yield and biochemical composition. Nevertheless, it has generated a narrow genetic basis that limits the development of new varieties with resistance to pests, diseases and environmental stresses. In this study, we address this limitation by characterizing the proximate and fatty acid composition of a multi-disease-resistant interspecific recombinant inbred line (RIL) population derived from three wild Arachis species and a cultivated elite peanut line that is being used to widen the genetic basis of the crop. The population was also genotyped with the Axiom Arachis 48K SNP array and used to detect quantitative trait loci (QTL) for oil, protein content and oleic and linoleic fatty acid percentages. A wide range of proximate composition was found in the RIL population. Eighteen and 11 individuals had high oil and protein content, respectively, and no undesirable traits related to oil quality had been introduced into the population from wild species. The fatty acid composition of oleic and linoleic acids was found to be regulated by two major QTL. The discovery of markers within the major effect QTL for the most significant chemical traits provides new opportunities for the creation of resistant and extremely nutrient-dense peanut cultivars.

To assess the validity of using wild behavioural data as a welfare indicator for zoo animals, the time budgets of 19 captive giraffe (Giraffa camelopardalis), from four zoos were compared with the time budgets of wild giraffe from Hwange National Park, Zimbabwe. Differences were shown to exist between the behaviour of wild and captive giraffe. However, only the duration of lying differed significantly across zoos. Correlations demonstrated that both enclosure size and feed restriction affected the locomotor activity of giraffe. An attempt to quantify observer influence upon the behaviour of wild giraffe was made. Different methods of observation were shown to significantly affect the time budget established. The extent to which wild giraffe behaviour can be used as a welfare indicator for captive conspecifics is discussed, as are the problems inherent in such a study. The difficulties in constructing an alternative welfare measure using prevalence to veterinary problems, are briefly considered. Methods by which captive giraffe welfare can be improved are discussed, particularly concerning the provision of browse to allow more natural feeding patterns to be established.

It is commonly assumed that animals suffer if they cannot perform behaviours seen in wild conspecifics. Although comparisons with the behaviour of wild conspecifics are a popular method of assessing the welfare of captive animals, their validity has not been fully assessed. Homeostatic models of motivation suggest that many behaviours are stimulus driven rather than internally generated. Thus, it is possible that the non-performance of some wild-type behaviours does not necessarily compromise animal welfare, unless welfare is defined as being compromised by such non-performance. The flexibility of wild animal behaviour and the fact that animals free to perform the complete range of wild behaviours can suffer, must also put into the question the validity of such comparisons. Technical criticisms also arise when one considers the difficulty of constructing accurate and unbiased time budgets for wild animals. It is possible that the expressions of wild-type behaviours correlate with enhanced welfare, rather than cause enhanced welfare. Thus, if the consequences of behaviour are more important than the expression of behaviour itself, environmental enrichment does not necessarily need to rely upon the performance of wild-type behaviours for the improvement of animal welfare. Therefore, although behavioural comparisons with wild animals can be considered as potentially useful indicators of behavioural differences, they cannot always be relied upon to give an objective assessment of animal welfare. To make an assessment of welfare, behavioural comparisons with wild animals should be used in conjunction with other techniques to demonstrate that the consequences of non-performance of wild behaviours results in impoverished welfare.

This article will examine state intervention in the lives of tigers and people living in and around Panna Tiger Reserve in Madhya Pradesh, Central India. It explores how, over a decade after a reintroduction project rebuilt the tiger population from extinction and the central government launched a new compensation scheme to relocate villagers away from the national park, relocated tigers and not-yet relocated villagers resist and challenge conservation interventions to eradicate human life in Panna Tiger Reserve and (re)construct it as a wild tiger landscape. It will show how discourses of conservation and development that motivate state intervention seek to depoliticize and obfuscate programmes of control over human and tiger lives through their separation and purported ‘care’, contiguous with colonial policies and discursive practices that have intertwined the fate of wild animals and forest-dependent villagers in this part of India. In their feral subversions against these interventions, relocated tigers and not-yet relocated villagers expose the problematic contradictions and tensions that plague animal management, wildlife conservation, and rural development in India today. Based on 15 months of ethnographic fieldwork, the article draws on case studies and accounts from communities living around Panna Tiger Reserve to present alternatives to colonial and post-colonial discursive legitimizations of state intervention and control, revealing alternate understandings of the entanglement of humans and animals and the categories of ‘wild’ and ‘tame’.

Seedling vigour is an important indicator of crop establishment, subsequent crop growth and yield. Initial seedling vigour is most vital in case of water-limited conditions and in environments where the crop is exposed to different stresses at the early growth stage. Wild and weedy species are well known for their vigour and survival in adverse environmental conditions. Seedling vigour traits of backcross introgression lines (BILs) derived from Swarna × Oryza nivara IRGC81848(S) (accession from Uttar Pradesh, India) and IRGC81832 (K) (accession from Bihar, India) were studied in wet (Kharif) and dry (Rabi) seasons. Seedling vigour was estimated in terms of plant height and tiller number at 30 and 60 d after transplanting under field conditions. In both the seasons, 148S showed highest seedling vigour for plant height. The highest number of tillers were produced by 7K in Kharif and 248S in Rabi season. 75S showed the highest percentage increase in tiller number consistently. High yielding BILs 166S, 14S and 148S showed higher seedling vigour indices compared with checks Tulasi and Sahbhagidhan. Seedling vigour was also evaluated using paper roll method and shoot length, root length and dry weight were used to estimate vigour index. Season-wise association studies were conducted to determine the relative contribution of seedling vigour to yield traits. Seedling vigour was significantly correlated with yield traits. Markers RM217 and RM253 on chromosome 6 differentiated lines with high seedling vigour from those with low seedling vigour and have the potential for use in marker-assisted breeding.

This article is a small piece of a much larger and still evolving project. Herein we focus on six touchstones for wild pedagogies. The article begins with a short orientation to the larger ideas behind the project and then focuses on exploring six current touchstones with a view towards early childhood environmental educators. The six explored here are: (1) agency and the role of nature as co-teacher; (2) wildness and challenging ideas of control; (3) complexity, the unknown, and spontaneity; (4) locating the wild; (5) time and practice; and (6) cultural change.

This study was carried out on fatty acid composition in wild and cultured varieties of two fish species, Epinephelus coioides and Sparidentex hasta. Fresh fish samples were collected from Hormozgan, Iran. After lipid extraction, fatty acids composition was analysed by gas chromatography. Results showed DHA (C22:6n3), EPA (C20:5n3), palmitic acid (C16:0), stearic acid (C18:0), myristic acid (C14:0), oleic acid (C18:1n9c) and palmitoleic acid (C16:1) were important fatty acids in the fish samples. There was low concentrate of linolenic acid (ALA, C18:3n3) in all analysed samples. Cultured fishes were found to contain significantly higher values of SFA, while their wild relative contained higher levels of MUFA followed by PUFA. In the wild fish species among PUFA, DHA were the most abundant followed by EPA. Altogether, EPA was the most abundant followed by DHA in the cultured fish species. Also the ω3/ω6 ratio was significantly higher in wild fishes and it was highest (13.04) in wild E. coioides.

Many crop species are able to hybridize with related weedy or wild relatives, which could lead to transfer of cultivar genes, and among them transgenes, into wild populations. It is not clear, however, whether the hybrids and their descendants are able to survive and reproduce in natural habitats, as inherited cultivar traits may be maladaptive under such conditions. To test this, we produced hybrid (F1) seeds by controlled crosses between wild and cultivated carrots (Daucus carota ssp. carota and ssp. sativa, respectively) and sowed them into three Danish grasslands of different age, in parallel with seeds of wild carrots. Replicate plots were sown in fall and spring. Survival and flowering of the emerging plants were monitored for the following three years. Both hybrid and wild carrots survived and flowered in highest frequency at a recently disturbed site, and much less at two older sites. Hybrids emerged in higher proportions than wild carrots in the first year and survived to similar or slightly lower frequencies at the end of the experiment. Hybrids flowered as frequently or slightly less frequently than wild plants, and developed fewer and smaller umbels. Despite a somewhat lower reproductive potential compared to wild carrots, first generation hybrids between cultivated and wild carrots are likely to survive and produce offspring in natural grasslands in Denmark. This, together with other studies, suggests that cultivar genes may transfer relatively easily into wild carrot populations.

The controlled wild algebra is introduced, a covering criterion for a finite-dimensional algebra to be controlled wild is given, and this criterion is applied to the algebras with radical square zero, algebras with zero relations, local algebras and finite p-group algebras.

2000 Mathematical Subject Classification: 16G20, 16G60.