This paper uses value chain analysis as a novel method to examine the conservation status of and strategies for cherimoya (Annona cherimola Mill.), an underutilized, perennial fruit species native to the Andean valleys of Ecuador, Peru and Bolivia. It was found that value chain features such as market channels, chain governance, quality performance and distribution of added value over chain actors differ significantly between cherimoya fruits that are registered by a collective trademark such as the Cumbe variety and another group of more traditionally produced and commercialized cherimoya fruits. The former is exported from its production area (Lima province in Peru) to neighboring Andean countries, is graded and selected intensively, has a higher quality perception and creates significantly more added value for both producers and traders than the other, locally produced cherimoyas whose value chain is governed less intensively. Previous studies on the genetic diversity of cherimoya in the countries of origin have stressed the necessity of conserving cherimoya germplasm in areas characterized by highly diverse (southern Ecuador and northern Peru) or rare (Bolivia) cherimoya germplasm. Although value chain development is generally considered crucial in on-farm conservation of underutilized species, the example of the Cumbe cherimoya shows that intraspecific diversity can be threatened by commercial success. Farmers who believe that quality is exclusively linked to a certain genotype have purchased Cumbe cherimoya grafts from each other, leading to genetic erosion of the local cherimoya genetic base.

Hunting is one of the principal causes of wildlife declines throughout the tropics. Even with an increase in the number of reserves, protecting wildlife has proven difficult and many reserves remain little different from unprotected areas. In Brazil, private landowners are being encouraged by federal and state governments and non-governmental organizations to participate in a national conservation strategy by setting aside land for preservation. However, due to chronic hunting pressure, the role that private reserves might play remains to be determined. In this study we analyze the potential of private reserves through a case study of the Reserva Ecológica Michelin in Bahia, Brazil. We measured the relative abundances of medium and large mammals before and after the implementation of guard patrols, to determine the efficacy of this management strategy for protecting wildlife. The relative abundance of the fauna increased by 72.6 % after the initiation of guard patrols, from 5.07 to 8.68 encounters/10 km, with preferred game species (Dasypus novemcinctus, Cuniculus paca, Pecari tajacu, and Mazama americana)increasing by 146.7-300%. Similarities between the relative abundances of preferred game species at our site after the initiation of the guard patrols and those of other protected Neotropical reserves indicate that the Michelin reserve is now being effectively protected. Although the cost of $9.4/ha to protect the reserve is high, this study shows that the private reserve initiative can be an effective component of the national conservation strategy.

Annual rural incomes in Southern Africa show large rainfall-induced fluctuations. Variable rainfall has serious implications for agro-pastoral activities (crop cultivation and livestock keeping), whereas wildlife and tourism are less affected. The aim of this paper is to investigate the role of wildlife income in reducing rainfall-induced fluctuations in households' annual incomes. We analyse costs and benefits from agro-pastoral systems in southeastern Zimbabwe by means of a two-tier longitudinal survey and wildlife benefits through analysis of wildlife revenues. We use the portfolio theory framework to investigate whether wildlife conservation has the potential for farmers to reduce risk associated with agricultural production. Results show that even though wildlife income is small, it tends to be less volatile than income from the agro-pastoral system. Furthermore, the addition of wildlife as an asset to the rural farmers' portfolio of assets showed that wildlife can be used as a hedge asset to offset risk from agricultural production without compromising on return. The potential of diversification using wildlife is, however, limited since agriculture and wildlife assets are positively correlated. We conclude that revenues from wildlife have some potential to reduce annual household income fluctuations, but only to a limited extent. We argue that if wildlife is organised on a more commercial basis, a more substantial role can be played by wildlife income in reducing variations in rural households' incomes.

Traditional palm basketry of the Ba Yei and HaMbukushu people of the Okavango delta region in Botswana was introduced in the 1970s by a missionary to the Wounaan aborigines of western Colombia, who had a related weaving technique. The African technique was quickly assimilated by the Wounaan and enriched with shapes and decoration based on their own cultural patterns. The Chocoan palm Astrocaryum standleyanum, which the Wounaan used in their traditional baskets, replaced the African Hyphaene petersiana used in Botswana. The high quality of the new basketry led to a rapid success and turned Wounaan Astrocaryum baskets into an icon among Colombian handicrafts. Market pressure led to a severe depletion of the fiber-producing palm near Indian villages in the late twentieth century, as palms were felled by the hundreds to harvest the spear leaves. Educational campaigns and the introduction of an appropriate harvest tool have subsequently reduced the impact of leaf harvest, and A. standleyanum is now protected by the Wounaan. This case pinpoints the importance of a careful resource management assessment before introducing new market pressures on a traditional plant product. It is also a good example of positive results from a sustained campaign for appropriate resource management.

Similipal Tiger Reserve is a large insurgent-affected protected area (PA) located in the northern Eastern Ghats, India, with a resident tribal population of about 12,500. In 2007-08, we carried out a survey of conservation attitudes among 217 men and women (<20 years old) and documented their perceptions of wildlife and forest decline over a 20-year period from 1997-2007. Using data from the Forest Survey of India, we ascertained the decrease in forest cover (<40%), and using available census information we assessed tiger status over this period. Most of the respondents were primarily agriculturists (79%), and all households collected fuel-wood from the forest; 13% hunted and 49% fished. The majority of the respondents (80%) agreed that trees had disappeared, and 90% agreed that the tiger and elephant had disappeared. Respondents' recollections of Bengal tiger and Asian elephant sightings over a 20-year period indicated a drastic decline in their numbers, and perceptions of forest loss were supported by assessments of changes in dense forest cover indicating an annual deforestation rate of 1.577% yr⁻¹ over a 20-year period, or loss of 274 km² of dense forest. This suggests that forest dwelling communities have an acute awareness of disappearing forests and wildlife, and informant-based surveys can be indicative of the status of wildlife and forests in situations such as Similipal, where ecological studies are problematic due to civil conflict.

With growing human population, increased accessibility to remote forests and adoption of modern tools, hunting has become a severe global problem, particularly in Nagaland, a Northeast Indian state. While Indian wildlife laws prohibit hunting of virtually all large wild animals, in several parts of North-eastern parts of India that are dominated by indigenous tribal communities, these laws have largely been ineffective due to cultural traditions of hunting for meat, perceived medicinal and ritual value, and the community ownership of the forests. We report the quantity of wild animals sold at Tuensang town of Nagaland, based on weekly samples drawn from May 2009 to April 2010. Interviews were held with vendors on the availability of wild animals in forests belonging to them and methods used for hunting. The tribes of Chang, Yimchunger, Khiemungan, and Sangtam are involved in collection/ hunting and selling of animals in Tuensang. In addition to molluscs and amphibians, 1,870 birds (35 species) and 512 mammals (8 species) were found in the samples. We estimated that annually 13,067 birds and 3,567 mammals were sold in Tuensang market alone, which fetched about Indian Rupees () 18.5 lakhs/ year. Temporal variation was observed with respect to various taxa sold; molluscs: almost all through the year; amphibians: June-August; and birds and mammals restricted to October-February. We suggest monitoring of all major markets of Nagaland to examine trends in exploitation of wild animals. However, considering the traditional dependency of people on wild resources, as well as their cultural sentiments and livelihoods, any interventions for wildlife conservation should have the involvement and support of local inhabitants.

We investigated the Bucatú microbasin in order to characterize the structure and composition of its surrounding mangrove area by recording the main anthropic interferences on the vegetation. This study was performed along 10 plots (1000 m² in total), perpendicular to the estuarine canal. Deposition and accumulation of sediments on the plants root system were evaluated using auger holes and photographs. Four plant species, Laguncularia racemosa (L.) Gaertn. (White Mangrove), Rhizophora mangle L. (Red Mangrove), Conocarpus erectus L.(Silver-leaved Buttonwood), and Annona glabra L. (Pond-apple) were recorded. The structural parameters obtained were low, and a great number of dead plants were observe d, most of them of the species L. racemosa. Sediment deposition rates of 10-15 cm were recorded. Silting in the mangrove area and alterations of water flow in the drainage basin of the Bucatu River were the main anthropic effects observed, exerting a high negative impact on the mangrove ecosystem we investigated.

We describe strobilus and seed development in a Dioon edule (chamal, palma, dameu') population characterized by low seedling and high adult tree density, in order to improve conservation decisions for this endangered cycad species. Female strobili required 16-17 months and male 4-5 months to develop. During this period 80% female and 100% male strobili were not damaged by herbivores. The method of cone analysis used to evaluate seed production of pines was modified for D. edule, providing actual yield of individual strobili compared to potential seed yield, explaining productivity in terms of seed efficiency, and identifying and quantifying the types of seed failures. Larger strobili have higher seed potential calculated as the number of seeds potentially produced in the fertile megasporophylls of each strobilus, total seeds actually produced, and seeds with an embryo (filled). Calculated average seed potential per strobilus was of 230.4 seeds. Using the X-ray technique, average seed traits were 100.2 full, 1.8 insect damaged, and 0.6 malformed. Seed efficiency (number of filled seeds as a percentage of the seed potential of each strobilus) of 42.5% indicated that major seed loss was attributable to abortive ovules and seeds, possibly due to ineffective pollination. Seedling survival in greenhouse conditions was 100% after one year. Low seed production affects the population structure and hinders its conservation.

There is a lack of knowledge on the factors driving epiphytic community assemblage along water-limited environments. Epiphytic bromeliad and host communities were analyzed in a range of vegetation types, following a precipitation gradient from 500 to 1500 mm y⁻¹. Plots were set up in scrub mangrove, coastal sand dune scrub, deciduous, semi-deciduous and sub-perennial forests within the Yucatan Peninsula in Mexico. Identity and abundance of hosts and epiphytes, as well as host height and seasonal microenvironmental variables, were recorded at each vegetation type. The study found epiphytic bromeliads to be mainly located in the lower canopy strata of all but the wettest site (sub-peren nial forest). Total epiphyte richness (estimated using species accumulation curves) increased with annual precipitation. Bromeliad species density decreased with vapor pressure deficit and increased with host species density. Semi-variograms and kriging analysis showed a high spatial correlation in bromeliad and host species density. The species composition, however, was unrelated to space, according to a Mantel test, but related to host species composition. The current study shows that diversity and structural integrity of the canopy may be as important as climate in the conservation of epiphytic composition in water-limited environments, where epiphytes are found in sheltered, lower canopy strata.

We surveyed Brazilian protected areas to assess the scale of big cat hunting within the National Protected Areas System. A questionnaire was emailed to managers of 297 reserves, with a response rate of 33.7%. One-third of respondents reported that jaguars (Panthera onca) and/or pumas (Puma concolor) have been hunted recently (i.e., within the last two years) in their reserves, resulting in the deaths of at least 60 cats. Hierarchical partitioning analysis revealed that degree of restriction to human use in the reserve (as a four-level rank variable) was the most important factor affecting the probability of a manager reporting big cat hunting, with hunting reported three times more frequently in the less restrictive reserves than in the more restrictive ones. Though our study represents only a small fraction of the problem, it confirms that hunting is widespread and represents a threat to carnivore conservation within Brazilian protected areas.