bluuebunny/crossref_metadata_2025_split huggingface dataset:
The role of ponds as feeding habitat for an umbrella species: best management practices for the black stork Ciconia nigra in Spain
Authors: Moreno-Opo Rubén , Fernández-Olalla Mariana , Guil Francisco , Arredondo Ángel , Higuero Rafael , Martín Manuel , Soria Carlos , Guzmán José 
Published: August 2011

AbstractTo establish recommendations for wetland management that promote wildlife diversity in Mediterranean habitats we examined the factors that determine feeding habitat selection by the black stork Ciconia nigra in ponds. The black stork is considered an umbrella species because it is threatened, requires large foraging ranges in priority areas, is selective in its choice of diet and nesting sites, and inhabits a characteristic biological community with endemic and threatened taxa. Eighty-five ponds were monitored in central and western Spain to detect the stork feeding. At the same time, pond variables that could affect black stork feeding preferences were periodically evaluated. Generalized linear mixed models were used to analyse principal components obtained from groups of factors related to structural, location and ecological conditions. The black stork selects ponds distant from roads, with a large surface area, high water level, shallow shores, low turbidity, few traces of wild ungulates on the shores, a high diversity of fish and amphibian species, and a vegetated perimeter, in flat and open areas. Potential factors affecting feeding behaviour are discussed. We suggest measures for pond construction and management that could favour this species in particular and biodiversity in general in the Mediterranean environment.
A new population of the Critically Endangered Aders’ duiker Cephalophus adersi confirmed from northern coastal Kenya
Authors: Andanje Samuel A. , Bowkett Andrew E. , Agwanda Bernard Risky , Ngaruiya Grace W. , Plowman Amy B. , Wacher Tim , Amin Rajan 
Published: August 2011

AbstractAders’ duiker Cephalophus adersi is a small antelope endemic to the coastal forests of east Africa. Threatened by habitat loss and hunting, the species is categorized as Critically Endangered on the IUCN Red List. Until recently Aders’ duiker was known to persist only on Zanzibar, Tanzania, and in the Arabuko-Sokoke Forest National Reserve, Kenya. However, in 2004 a sighting of a single individual was reported from the Dodori forest in northern coastal Kenya, raising the possibility that the species survives elsewhere. Subsequently, an opportunistic camera-trap survey was conducted in September and October 2008 to establish the occurrence of Aders’ duiker in Kenyan coastal forests north of the Tana River. One hundred and fifty six images of Aders’ duikers were obtained from 12 of 28 camera-trap sites (46 of 358 camera-trap days), confirming the existence of a population of Aders’ duiker in the Boni–Dodori forest both inside and outside the National Reserves. In addition, we sighted individuals of the species on three occasions. The relatively high encounter rates per unit effort compared to similar data from Arabuko-Sokoke forest suggest the Boni–Dodori population is significant. Initial surveys of the local Awer community revealed that Aders’ duiker is well known by the name guno. These findings significantly improve the conservation prospects for Aders’ duiker and highlight the need for greater research and management efforts in the poorly known Boni–Dodori forest.
Economic System and Welfare Regime Dynamics in Japan since the Early 2000s – The Case of Occupational Pensions
Authors: CONRAD HARALD 
Published: August 2011

AbstractThis article discusses significant changes of Japanese occupational pensions since the early 2000s. Our analysis shows that these schemes have been key components of policies to promote private welfare provision and have been highly compatible with human capital investment strategies that are based on long-term employment relationships of regular workers. However, since the 1990s, occupational pensions have come under increased pressure due to underfunding problems caused by depressed stock markets and changes in accounting standards that made these underfunding problems apparent. In response to these challenges, Japanese companies have restructured their occupational pension arrangements. The nature of these efforts can be explained with reference to existing institutional complementarities with the economic system on the one hand and changes in the cost–benefit calculations of employers, employees and the civil service on the other hand. Whereas complementarities, especially with human resource management factors, have ultimately defined the limits of these changes, an actor-centered analysis helps to explain the particular nature of changes within these boundaries.
A stance period approach for simplified observation of galloping as applied to canines
Authors: Singh Surya P. N. , Waldron Kenneth J. 
Published: August 2011

SUMMARYThe gallop is the preferred gait by mammals for agile traversal through terrain. This motion is intrinsically complex as the feet are used individually and asymmetrically. Simple models provide a conceptual framework for understanding this gait. In this light, this paper considers the footfall projections as suggested by an impulse model for galloping as a measurement simplifying strategy. Instead of concentrating on forces and inverse dynamics, this view focuses observations on leg motion (footfalls and stance periods) for subsequent gallop analysis and parameter estimation. In practice, this eases experiments (particularly for IR-based motion capture) by extending the experimental workspace, removing the need for single-leg contact force-plate measurements, and reducing the marker set. This provides shorter setup times, and it reduces postprocessing as data are less likely to suffer from occlusion, errant correspondence, and tissue flexion. This approach is tested using with three canine subjects (ranging from 8 to 24 kg) performing primarily rotary gallops down a 15 m runway. Normalized results are in keeping with insights from previous animal and legged robot studies and are consistent with motions suggested by said impulse model.
Forest corridors facilitate movement of tropical forest birds after experimental translocations in a fragmented Neotropical landscape in Mexico
Authors: Ibarra-Macias Ana , Robinson W. Douglas , Gaines Michael S. 
Published: August 2011

Abstract:We evaluated effects of corridors between forest fragments surrounded by pastures in tropical Mexico. We used experimental translocations and capture–recapture data to measure the proportion of birds returning and time to return after translocation between connected and unconnected patches (five replicates for each treatment). Depending on each species’ degree of forest dependence (forest-restricted and forest-unrestricted species), we assigned birds to two groups to evaluate influence of species characteristics on effects of corridors on movement. Birds translocated between connected patches (n = 75) were seven times more likely to be recaptured in their original capture site when compared with birds translocated between unconnected patches (n = 109). Effects differed among the two species groups. In the presence of corridors, 46% of forest-unrestricted birds returned to the capture site while only 5% returned between unconnected patches. Forest-restricted birds showed similar results, but were only twice as likely to return to a connected capture site. Birds translocated between unconnected patches took longer to return than birds translocated between connected patches. The strong positive effect of corridors on movement, even for forest-unrestricted species, suggests that forested corridors facilitate bird movement and help maintain connectivity even in this highly fragmented landscape.
Primary seed dispersal by the black-and-white ruffed lemur (Varecia variegata) in the Manombo forest, south-east Madagascar
Authors: Moses Kara L. , Semple Stuart 
Published: August 2011

Abstract:Seed dispersal is a pivotal ecological process but remains poorly understood on Madagascar, where lemurs are key dispersers. The black-and-white ruffed lemur (Varecia variegata) possesses many behavioural and ecological attributes potentially conducive to effective seed dispersal, but no studies have investigated dispersal patterns in this species. This 3-mo study quantified aspects of the primary seed dispersal patterns generated by twoVarecia variegatagroups (7 individuals). Feeding and ranging behaviour was quantified using behavioural observation (345.6 h), dispersal quantity and seed identity was determined by faecal analysis, and 10-wk germination trials tested effects of gut passage on germination of four species. Individual lemurs dispersed an estimated 104 seeds d−1, of 40 species. Most seeds were large (>10 mm); the largest was 42 mm long. Gut passage was rapid (mean 4.4 h) and generally increased germination speed and success. Mean and maximum inferred dispersal distances were 180 and 506 m respectively; low compared with many anthropoids, but possibly typical of lemurs. Though limited by a short study period, results suggest that the ruffed lemur is an effective disperser of seeds and possibly a critical disperser of large-seeded species which other frugivores cannot swallow. Loss of large-bodied seed dispersers such asVarecia variegatamay have far-reaching ecological consequences including impacts on forest structure and dynamics.
Microhabitat specialization of tropical rain-forest canopy trees in the Sovi Basin, Viti Levu, Fiji Islands
Authors: Keppel Gunnar , Tuiwawa Marika V. , Naikatini Alifereti , Rounds Isaac A. 
Published: August 2011

Abstract:Island biotas often have lower species diversity and less intense competition has been hypothesized as a result. This should result in lower habitat specificity compared with mainland habitats due to larger realized niches. We investigate microhabitat associations of canopy trees with regard to differences in topography on an oceanic island (Viti Levu, Fiji) using twenty 10 × 60-m plots. We find high tree-species diversity (112 species with dbh ≥ 10 cm in a total of 1.08 ha) and high endemism (c. 60%), compared with other islands in Western Polynesia. Our sample plots aggregate into three distinct groups that are mostly defined by micro-topography: (1) ridges and steep slopes (well-drained sites), (2) moderate slopes and ridge flats (moderate drainage), and (3) flats (poor drainage). Associations with microhabitat are found for more than 50% of the 41 most common species but only one species is apparently restricted to a single habitat. These findings are similar to other rain forests and demonstrate considerable niche differentiation among island rain-forest tree species.
Demography and biomass change in monodominant and mixed old-growth forest of the Congo
Authors: Makana Jean-Remy , Ewango Corneille N. , McMahon Sean M. , Thomas Sean C. , Hart Terese B. , Condit Richard 
Published: August 2011

Abstract:Mbau forest covers much of the Congo, and shifts in its composition could have a large impact on the African tropics. The Ituri forest in east Congo is near a boundary between the monodominant mbau type and non-mbau mixed forest, and two 20-ha censuses of trees ≥ 1 cm diameter were carried out over 12 y to monitor forest change. Based on published diameter allometry, mbau forest had 535 Mg ha−1 biomass above ground and gained 1.1 Mg ha−1 y−1. Mixed forest had 399 Mg ha−1 and gained 3 Mg ha−1 y−1. The mbau tree (Gilbertiodendron dewevrei) increased its share of biomass from 4.1% to 4.4% in mixed forest; other common species also increased. Sapling density declined at both sites, likely because increased biomass meant shadier understorey, but the mbau tree increased in sapling density, suggesting it will become more important in the future. Tree mortality and growth rates were low relative to other tropical forests, especially in the mbau plots. Shifting toward G. dewevrei would represent a large gain in carbon in the mixed forest, but mbau is presently more important as a high-carbon stock: biomass lost during forest harvest could not recuperate for centuries due to slow community dynamics.
Flower number and distance to neighbours affect the fecundity of Goetzea elegans (Solanaceae)
Authors: Caraballo-Ortiz Marcos A. , Santiago-Valentín Eugenio , Carlo Tomás A. 
Published: August 2011

Abstract:Pollinator visits to flowers of self-incompatible tropical trees are critical for plant fecundity. However, few studies have examined how much of the variance in tropical tree fecundity is explained by individual attributes of trees (e.g. number of flowers), and how much is due to contextual variables such as distances to nearest flowering neighbours. Using multiple regressions we examined the relative contributions of these factors to the pollination and fecundity of Goetzea elegans, a mainly self-incompatible tree endemic to Puerto Rico. We studied the largest wild population of the species during the peak flowering and collected data on the frequency of pollinator visits (N = 25 trees), and the fecundity of the whole population (N = 105), including the visitation rate of two pollinators (the honey bee Apis mellifera and the bananaquit Coereba flaveola), the total number of flowers produced by each tree, and the total fruit set and seed viability per tree. We also recorded the distance to flowering conspecifics and heterospecifics, and the height for each tree. Flower number had a strong positive effect on pollinator visitation, but distance to nearest neighbours was equally or more important than flower number in influencing fecundity. Also, competition for limited pollinators between G. elegans and other species has a stronger effect than the facilitation that conspecifics may provide. Our results suggest that pollinator visits and aspects of fecundity of G. elegans depend both on the attributes of individual plants, and on those of the community of other nearby plants.
An evaluation of the California Instructional School Garden Program
Authors: Hazzard Eric L , Moreno Elizabeth , Beall Deborah L , Zidenberg-Cherr Sheri 
Published: August 2011

AbstractObjectiveCalifornia Assembly Bill 1535 awarded $US 15 million to California public schools to promote, develop and sustain instructional school gardens through the California Instructional School Garden Program (CISGP). The present study was designed to assess the effectiveness of the CISGP at assisting schools in implementing, maintaining and sustaining an academic school garden programme, determine how schools utilized the funding they received and assess the impact of the California state budget crisis on the CISGP.DesignA mid-term evaluation was used to assess the degree to which schools achieved their instructional garden-related goals.SettingCalifornia.SubjectsOnly schools that applied for the CIGSP grant as part of a school district and also provided a contact email and had a unique contact person were included in the study (n3103, 80·6 %).ResultsIn general, many schools reported not achieving their predicted goals with regard to the CISGP grant. Only 39·4 % of schools reported accomplishing all of their garden-related goals. Over one-third (37·8 %) of schools reported that their school gardens were negatively affected by the California budget deficit.ConclusionsThe difference between predicted and actual utilization of the CISGP grants may be due to a combination of the effects of budget shortfall and insufficiency of the grant award amount.
Availability of nutritional support services in HIV care and treatment sites in sub-Saharan African countries
Authors: Anema Aranka , Zhang Wendy , Wu Yingfeng , Elul Batya , Weiser Sheri D , Hogg Robert S , Montaner Julio SG , El Sadr Wafaa , Nash Denis 
Published: August 2011

AbstractObjectiveTo examine the availability of nutritional support services in HIV care and treatment sites across sub-Saharan Africa.DesignIn 2008, we conducted a cross-sectional survey of sites providing antiretroviral therapy (ART) in nine sub-Saharan African countries. Outcomes included availability of: (i) nutritional counselling; (ii) micronutrient supplementation; (iii) treatment for severe malnutrition; and (iv) food rations. Associations with health system indicators were explored using bivariate and multivariate methods.SettingPresident's Emergency Plan for AIDS Relief-supported HIV treatment and care sites across nine sub-Saharan African countries.SubjectsA total of 336 HIV care and treatment sites, serving 467 175 enrolled patients.ResultsOf the sites under study, 303 (90 %) offered some form of nutritional support service. Nutritional counselling, micronutrient supplementation, treatment for severe acute malnutrition and food rations were available at 98 %, 64 %, 36 % and 31 % of sites, respectively. In multivariate analysis, secondary or tertiary care sites were more likely to offer nutritional counselling (adjusted OR (AOR): 2·2, 95 % CI 1·1, 4·5). Rural sites (AOR: 2·3, 95 % CI 1·4, 3·8) had increased odds of micronutrient supplementation availability. Sites providing ART for >2 years had higher odds of availability of treatment for severe malnutrition (AOR: 2·4, 95 % CI 1·4, 4·1). Sites providing ART for >2 years (AOR: 1·6, 95 % CI 1·3, 1·9) and rural sites (AOR: 2·4, 95 % CI 1·4, 4·4) had greater odds of food ration availability.ConclusionsAvailability of nutritional support services was high in this large sample of HIV care and treatment sites in sub-Saharan Africa. Further efforts are needed to determine the uptake, quality and effectiveness of these services and their impact on patient and programme outcomes.
Food insecurity, childhood illness and maternal emotional distress in Ethiopia
Authors: Anderson Laura C , Tegegn Ayalew , Tessema Fasil , Galea Sandro , Hadley Craig 
Published: August 2011

AbstractObjectiveThe relationship between food insecurity, maternal emotional distress and childhood morbidity in resource-poor settings is not well clarified. The present study aimed to assess independent associations between household food insecurity and childhood morbidity and potential modifications by maternal emotional distress.DesignA cross-sectional survey. A food security scale was used to assess household food insecurity; maternal reports were used to assess recent childhood illness; and the Hopkins Symptom Checklist was used to assess symptoms of emotional distress among mothers.SettingThe Oromia Region, Ethiopia (rural area).SubjectsA total of 936 mother–child pairs.ResultsOf 936 children assessed, 22·4 % had experienced diarrhoea, 20·7 % had cough and 21·5 % had fever in the 2 weeks preceding the interview. Household food insecurity was reported by 39 % of mothers. Greater food insecurity and greater maternal emotional distress were each independently associated with higher prevalence of cough and fever. Among mothers with low emotional distress, food insecurity was associated with a 2·3 times greater odds of diarrhoea in their children.ConclusionsHousehold food insecurity may increase the risk of childhood illness in rural Ethiopia, and children having mothers with greater emotional distress may be at highest risk. These findings highlight the importance of strengthening policy initiatives aimed at reducing the high prevalence of food insecurity and emotional distress in Ethiopia.
Validity of an adapted Household Food Insecurity Access Scale in urban households in Iran
Authors: Mohammadi Fatemeh , Omidvar Nasrin , Houshiar-Rad Anahita , Khoshfetrat Mohammad-Reza , Abdollahi Morteza , Mehrabi Yadollah 
Published: August 2011

AbstractObjectiveTo assess the validity of a locally adapted Household Food Insecurity Access Scale (HFIAS) in the measurement of household food insecurity (FI) in the city of Tehran.DesignA cross-sectional study.SettingUrban households were selected through a systematic cluster sampling method from six different districts of Tehran. The socio-economic status of households was evaluated using a questionnaire by means of interviews. An adapted HFIAS was used to measure FI. Content validity was assessed by an expert panel, and the questionnaire was then tested among ten households for clarity. Criterion validity was assessed by comparing the measure with a number of determinants and consequences of FI. Internal consistency was evaluated by Cronbach'sαand exploratory factor analysis. For repeatability, the questionnaire was administered twice to twenty-five households at an interval of 20 d and Pearson's correlation coefficient was calculated.SubjectsA total of 416 households.ResultsIn all, 11·8 %, 14·4 % and 17·5 % of the households were severely, moderately and mildly food insecure, respectively. Cronbach'sαwas 0·855. A significant correlation was observed between the two administrations of the questionnaire (r= 0·895,P< 0·001). Factor analysis of HFIAS items revealed two factors: the first five items as factor 1 (mild-to-moderate FI) and the last four as factor 2 (severe FI). Heads of food-secure households had higher education and higher job position compared with heads of food-insecure households (P< 0·001). Income and expenditure were lower in food-insecure households compared with food-secure households.ConclusionsAdapted HFIAS showed acceptable levels of internal consistency, criterion validity and reliability in assessing household FI among Tehranians.
Evaluation of the first phase of a specialist weight management programme in the UK National Health Service: prospective cohort study
Authors: Morrison David S , Boyle Susan , Morrison Caroline , Allardice Gwen , Greenlaw Nicola , Forde Lorna 
Published: August 2011

AbstractObjectiveTo evaluate the first phase of a specialist weight management programme provided entirely within the UK National Health Service.DesignProspective cohort study using multiple logistic regression analysis to report odds of ≥5 kg weight loss in all referrals and completers, and odds of completion, with 95 % confidence intervals. Anxiety and depression ‘caseness’ were measured by the Hospital Anxiety and Depression Scale.SettingGlasgow and Clyde Weight Management Service (GCWMS) is a specialist multidisciplinary service, with clinical psychology support, for patients with BMI ≥35 kg/m2 or BMI ≥30 kg/m2 with co-morbidities.SubjectsAll patients referred to GCWMS between 2004 and 2006.ResultsOf 2976 patients referred to GCWMS, 2156 (72·4 %) opted into the service and 809 completed phase 1. Among 809 completers, 35·5 % (n 287) lost ≥5 kg. Age ≥40 years, male sex (OR = 1·39, 95 % CI 1·05, 1·82), BMI ≥ 50 kg/m2 (OR = 1·70, 95 % CI 1·14, 2·54) and depression (OR = 1·81, 95 % CI 1·35, 2·44) increased the likelihood of losing ≥5 kg. Diabetes mellitus (OR = 0·55, 95 % CI 0·38, 0·81) and socio-economic deprivation were associated with poorer outcomes. Success in patients aged ≥40 years and with BMI ≥50 kg/m2 was associated with higher completion rates of the programme. Patients from the most deprived areas were less likely to lose ≥5 kg because of non-completion of the programme.ConclusionsFurther improvements in overall effectiveness might be achieved through targeting improvements in appropriateness of referrals, retention and effective interventions at specific populations of patients.