Functional capacity and self-care profiles of older people in senior care homes.

The reduction of the functional capacity in older people is the result of physical, psychological and functional changes related to the ageing process, compromising the performance of daily life activities. Assessing their functional capacity and their self-care profile can facilitate the planning of targeted strategies related to stimulation, as well as cognitive and motor rehabilitation. This study aims to evaluate and analyse the functional capacity, as well as the level of dependence in self-care of older people in senior care centres. This is a transversal exploratory study, quantitative in nature. The sample was comprised of 313 participants, randomly selected from a set of senior care centres, with an average age of 83.41 (SD=7.14) years, recruited from the interior North of Portugal. The data collection instruments included the Barthel Index, the Lawton and Brody Scale, the Evaluation Form of Dependence in Self-care, the Self-care of Home Dwelling Elderly (self-care subscale profiles) and a questionnaire on demographic data. The elderly showed several levels of dependence on different self-care items. It was possible to observe that the staff often replaces the elderly in many of the tasks that could still be performed by them, and thus aggravates their levels of dependence. The link observed between functional capacity and self-care profiles highlights the need to focus on the notion of a healthy and active ageing process, especially in some profiles. The monitoring of the functional capacity and the self-care profile can provide knowledge concerning the potential for autonomy and individual needs, thus enabling targeted and more responsive interventions for the individual and the real needs of older people.

Acorn Isotopic Composition: A New Promising Tool for Authenticity Maps of Montado's High-Value Food Products.

It is often overlooked that even food production is linked to the ecology of plants and animals. Living organisms respond to environmental short-and long-term variability: acknowledging this may help in the ultimate goal of valorizing a territory/product. We investigated acorns of the two main Quercus species of the Portuguese Montado, a main feed of the renown black Iberian pig. We tested their responses to an aridity gradient by morphological parameters and isotopic signature. Q. rotundifolia and Q. suber acorns did not differ morphologically, even if a higher variability in all parameters was observed in acorns of Q. suber. According to the site-specific Aridity Index, correlations are indicative to higher weight and length only in Q. suber acorns from more arid sites. As for isotopic composition, there were no differences in nitrogen or carbon (δ15N and δ13C) between the two species. However, combining the samples and testing for association with the Aridity Index, we found that more arid sites lead to a 15N enrichment. This result, combined with the positive correlation between AI and acorns length, support the use of acorns as a tool, their isoscapes of nitrogen being a stepping stone for the provenance of the black Iberian pig.

Groundwater drawdown drives ecophysiological adjustments of woody vegetation in a semi-arid coastal ecosystem.

Predicted droughts and anthropogenic water use will increase groundwater lowering rates and intensify groundwater limitation, particularly for Mediterranean semi-arid ecosystems. These hydrological changes may be expected to elicit differential functional responses of vegetation either belowground or aboveground. Yet, our ability to predict the impacts of groundwater changes on these ecosystems is still poor. Thus, we sought to better understand the impact of falling water table on the physiology of woody vegetation. We specifically ask (a) how is woody vegetation ecophysiological performance affected by water table depth during the dry season? and (b) does the vegetation response to increasing depth to groundwater differ among water-use functional types? We examined a suite of physiological parameters and water-uptake depths of the dominant, functionally distinct woody vegetation along a water-table depth gradient in a Mediterranean semi-arid coastal ecosystem that is currently experiencing anthropogenic groundwater extraction pressure. We found that groundwater drawdown did negatively affect the ecophysiological performance of the woody vegetation. Across all studied environmental factors, depth to groundwater was the most important driver of ecophysiological adjustments. Plant functional types, independent of groundwater dependence, showed consistent declines in water content and generally reduced C and N acquisition with increasing depths to groundwater. Functional types showed distinct operating physiological ranges, but common physiological sensitivity to greater water table depth. Thus, although differences in water-source use exist, a physiological convergence appeared to happen among different functional types. These results strongly suggest that hydrological drought has an important impact on fundamental physiological processes, constraining the performance of woody vegetation under semi-arid conditions. By disentangling the functional responses and vulnerability of woody vegetation to groundwater limitation, our study establishes the basis for predicting the physiological responses of woody vegetation in semi-arid coastal ecosystems to groundwater drawdown.

Evaluating green infrastructure in urban environments using a multi-taxa and functional diversity approach.

Forested areas within cities host a large number of species, responsible for many ecosystem services in urban areas. The biodiversity in these areas is influenced by human disturbances such as atmospheric pollution and urban heat island effect. To ameliorate the effects of these factors, an increase in urban green areas is often considered sufficient. However, this approach assumes that all types of green cover have the same importance for species. Our aim was to show that not all forested green areas are equal in importance for species, but that based on a multi-taxa and functional diversity approach it is possible to value green infrastructure in urban environments. After evaluating the diversity of lichens, butterflies and other-arthropods, birds and mammals in 31 Mediterranean urban forests in south-west Europe (Almada, Portugal), bird and lichen functional groups responsive to urbanization were found. A community shift (tolerant species replacing sensitive ones) along the urbanization gradient was found, and this must be considered when using these groups as indicators of the effect of urbanization. Bird and lichen functional groups were then analyzed together with the characteristics of the forests and their surroundings. Our results showed that, contrary to previous assumptions, vegetation density and more importantly the amount of urban areas around the forest (matrix), are more important for biodiversity than forest quantity alone. This indicated that not all types of forested green areas have the same importance for biodiversity. An index of forest functional diversity was then calculated for all sampled forests of the area. This could help decision-makers to improve the management of urban green infrastructures with the goal of increasing functionality and ultimately ecosystem services in urban areas.

Differential Impact of the Pinewood Nematode on Pinus Species Under Drought Conditions.

The pinewood nematode (PWN), Bursaphelenchus xylophilus, responsible for the pine wilt disease (PWD), is a major threat to pine forests worldwide. Since forest mortality due to PWN might be exacerbated by climate, the concerns regarding PWD in the Mediterranean region are further emphasized by the projected scenarios of more drought events and higher temperatures. In this context, it is essential to better understand the pine species vulnerability to PWN under these conditions. To achieve that, physiological responses and wilting symptoms were monitored in artificially inoculated Pinus pinaster (P. pinaster), Pinus pinea (P. pinea), and Pinus radiata (P. radiata) saplings under controlled temperature (25/30°C) and water availability (watered/water stressed). The results obtained showed that the impact of PWN is species-dependent, being infected P. pinaster and P. radiata more prone to physiological and morphological damage than P. pinea. For the more susceptible species (P. pinaster and P. radiata), the presence of the nematode was the main driver of photosynthetic responses, regardless of their temperature or water regime conditions. Nevertheless, water potential was revealed to be highly affected by the synergy of PWN and the studied abiotic conditions, with higher temperatures (P. pinaster) or water limitation (P. radiata) increasing the impact of nematodes on trees' water status. Furthermore, water limitation had an influence on nematodes density and its allocation on trees' structures, with P. pinaster revealing the highest nematode abundance and inner dispersion. In inoculated P. pinea individuals, nematodes' population decreased significantly, emphasizing this species resistance to PWN. Our findings revealed a synergistic impact of PWN infection and stressful environmental conditions, particularly on the water status of P. pinaster and P. radiata, triggering disease symptoms and mortality of these species. Our results suggest that predicted drought conditions might facilitate proliferation and exacerbate the impact of PWN on these two species, through xylem cavitation, leading to strong changes in pine forests of the Mediterranean regions.

Self-care profiles of the elderly institutionalized in Elderly Care Centres.

The concept of self-care in the elderly has been frequently associated with autonomy, independence and personal accountability. Self-care practices are a result of individual lifestyles and paths adapted to the circumstances and expectations of the elderly. Based on the model by Backman and Hentinen (1999), the present study attempts to categorically describe the types of self-care of the elderly. This is an exploratory study, transversal, of a quantitative nature. The sample was comprised of 313 participants, randomly selected among Elderly Care Centres in the interior North of Portugal. The Portuguese version of Self-care of Home Dwelling Elderly was used for data collection. The results call for a replication of the study, using the theoretical derivation of the four self-care profiles (responsible, formally guided, independent and abandoned).

The link between cognitive state and general self-esteem among institutionalized elderly persons: can health condition serve as a mediating factor? / Associação entre estado cognitivo e autoestima global em idosos institucionalizados: será a condição de saúde um mediador?

Abstract Objective: to assess whether the health condition of an elderly person can serve as a mediating factor between the cognitive state and general self-esteem of the institutionalized elderly. Method: a quantitative, cross-sectional correlational study was performed, based on the path analysis technique.The following instruments were used for data collection: the Mini-Mental State Examination, the Tinetti Performance Oriented Mobility Assessment, the Mini Nutritional Evaluation and the Rosenberg Self-Esteem Scale. Results: the sample was composed of 312 elderly patients of both genders (112 men and 200 women), with an average age of 83.39 (+7.09) years. Most of the elderly persons were widowed, with a low educational level, and had been institutionalized in Residential Care Facilities for the Elderly for on average 54.6 (+51.69) months. The mediating factor of health condition renders the link between the cognitive state and self-esteem of the elderly null. However, the analysis of the decomposition of the effects showed a significant indirect effect between the cognitive state and health condition. The total effect of cognitive state on the health condition of the elderly is significant, positive and direct. Conclusion: based on the results of this study we maintain that cognitive changes can affect the nutritional state and physical balance of the institutionalized elderly. AU

Resumo Objetivo: testar se a condição de saúde da pessoa idosa é mediadora na associação entre o estado cognitivo e a autoestima global de idosos institucionalizados. Método: estudo de natureza quantitativa, transversal do tipo correlacional, recorreu à análise de caminhos. Na recolha de dados utilizaram-se as versões portuguesas dos seguintes instrumentos: Mini-Mental State Examination, Tinetti Performance Oriented Mobility Assessement, Miniavaliação Nutricional e a Rosenberg Self-Esteem Scale. Resultados: a amostra foi constituída por 312 idosos de ambos os gêneros (112 homens e 200 mulheres), com média etária de 83,39 (±7,09) anos. A maioria dos idosos eram viúvos, com baixa escolaridade, institucionalizados em Equipamentos Residenciais para Pessoas Idosas em média há 54,60 (±51,69) meses. Não se confirmou a mediação da condição de saúde na associação entre estado cognitivo e autoestima nos idosos. Contudo, a análise da decomposição dos efeitos indicou a existência de um efeito significativo indireto do estado cognitivo na autoestima e na condição de saúde. O efeito total do estado cognitivo na condição de saúde dos idosos é significativo, positivo e direto. Conclusão: os resultados desse estudo permitem-nos afirmar que as alterações cognitivas podem afetar o estado nutricional e o equilíbrio corporal dos idosos institucionalizados. AU