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1.
PLoS One ; 14(7): e0220155, 2019.
Article in English | MEDLINE | ID: mdl-31329642

ABSTRACT

While the area of plantation forest increased globally between 2010 and 2015, more than twice the area of natural forests was lost over the same period (6.5 million ha natural forest lost per year versus 3.2 million ha plantation gained per year). Consequently, there is an increasing need to understand how plantation land use affects biodiversity. The relative conservation value of plantation forests is context dependent, being influenced by previous land use, management regimes and landscape composition. What is less well understood, and of importance to conservation management, is the consistency of diversity patterns across regions, and the degree to which useful generalisations can be provided within and among bioregions. Here, we analyse forest birds in Ireland, France and Portugal, representing distinct regions across the Atlantic biogeographic area of Europe. We compared taxonomic, functional and phylogenetic diversity of bird communities among conifer plantations and semi-natural oak forests, and assessed correlations between species traits and forest type across these regions. Although bird composition (assessed with NMDS ordination) differed consistently between plantation and oak forests across all three regions, species richness and Shannon diversity did not show a consistent pattern. In Ireland and France, metrics of taxonomic diversity (richness and Shannon diversity), functional diversity, functional dispersion and phylogenetic diversity were greater in oak forests than plantations. However, in Portugal taxonomic and phylogenetic diversity did not differ significantly between forest types, while functional diversity and dispersion were statistically significantly greater in plantations. No single bird trait-forest type association correlated in a consistent direction across the three study regions. Trait associations for the French bird communities appeared intermediate between those in Ireland and Portugal, and when trait correlations were significant in both Ireland and Portugal, the direction of the correlation was always opposite. The variation in response of bird communities to conifer plantations indicates that care is needed when generalising patterns of community diversity and assembly mechanisms across regions.


Subject(s)
Biodiversity , Birds/physiology , Forests , Animals , Europe , Quercus/physiology , Tracheophyta/physiology
2.
Conserv Biol ; 33(2): 413-422, 2019 04.
Article in English | MEDLINE | ID: mdl-30346052

ABSTRACT

Wind energy development is the most recent of many pressures on upland bird communities and their habitats. Studies of birds in relation to wind energy development have focused on effects of direct mortality, but the importance of indirect effects (e.g., displacement, habitat loss) on avian community diversity and stability is increasingly being recognized. We used a control-impact study in combination with a gradient design to assess the effects of wind farms on upland bird densities and on bird species grouped by habitat association (forest and open-habitat species). We conducted 506 point count surveys at 12 wind-farm and 12 control sites in Ireland during 2 breeding seasons (2012 and 2013). Total bird densities were lower at wind farms than at control sites, and the greatest differences occurred close to turbines. Densities of forest species were significantly lower within 100 m of turbines than at greater distances, and this difference was mediated by habitat modifications associated with wind-farm development. In particular, reductions in forest cover adjacent to turbines was linked to the observed decrease in densities of forest species. Open-habitat species' densities were lower at wind farms but were not related to distance from turbines and were negatively related to size of the wind farm. This suggests that, for these species, wind-farm effects may occur at a landscape scale. Our findings indicate that the scale and intensity of the displacement effects of wind farms on upland birds depends on bird species' habitat associations and that the observed effects are mediated by changes in land use associated with wind-farm construction. This highlights the importance of construction effects and siting of turbines, tracks, and other infrastructure in understanding the impacts of wind farms on biodiversity.


Efectos del Desarrollo de la Energía Eólica y los Cambios Asociados al Uso de Suelo sobre las Densidades de Aves en Tierras Altas Resumen El desarrollo de la energía eólica es la más reciente de muchas presiones ejercidas sobre las comunidades de aves de tierras altas y sus hábitats. Los estudios sobre aves en relación con el desarrollo de la energía eólica se han enfocado en los efectos de la mortalidad directa, pero la importancia de los efectos indirectos (p. ej.: desplazamiento, pérdida de hábitat) sobre la diversidad y estabilidad de las comunidades aviares cada vez se reconoce más. Usamos un estudio de control-impacto combinado con un diseño de gradiente para evaluar los efectos de los campos eólicos sobre las densidades de aves de tierras altas y sobre las especies de aves agrupadas por asociación de hábitat (especies de bosque y de hábitat abierto). Realizamos 506 censos de conteo por puntos en 12 sitios de campos eólicos y 12 sitios control en Irlanda durante dos temporadas de reproducción (2012 y 2013). Las densidades de aves totales fueron más bajas en los campos eólicos que en los sitios control, con las diferencias más importantes ocurriendo cerca de las turbinas. Las densidades de las especies de bosque fueron significativamente más bajas a 100 m de las turbinas que a distancias mayores y esta diferencia estuvo mediada por modificaciones asociadas con el desarrollo de campos eólicos. De manera particular, las reducciones en la cobertura de bosque adyacente a las turbinas estuvieron vinculadas con la disminución observada en las densidades de las especies de bosque. Las densidades de las especies de hábitat abierto fueron más bajas en los campos eólicos pero no estuvieron relacionadas con la distancia a las turbinas y tuvieron una relación negativa con el tamaño del campo eólico. Lo anterior sugiere que, para estas especies, los efectos del campo eólico pueden ocurrir a la escala de paisaje. Nuestros hallazgos indican que la escala y la intensidad de los efectos de desplazamiento de los campos eólicos sobre las aves de tierras altas dependen de las asociaciones de hábitat de las especies de aves y que los efectos observados están mediados por cambios en el uso de suelo asociados con la construcción de campos eólicos. Esto remarca la importancia de los efectos de construcción y el sitiado de las turbinas, pistas y demás infraestructura en el entendimiento de los impactos que tienen los campos eólicos sobre la biodiversidad.


Subject(s)
Conservation of Natural Resources , Energy-Generating Resources , Animals , Birds , Ecosystem , Wind
3.
J Community Health ; 40(5): 891-8, 2015 Oct.
Article in English | MEDLINE | ID: mdl-25791877

ABSTRACT

Cancer incidence among American Indians (AIs) is low, yet their 5-year relative survival rate is the second lowest of all U.S. populations. Culturally relevant cancer prevention education is key to achieve health equity. This collaborative project of the Hualapai Tribe and University of Arizona modified the National Cancer Institute's 2003 Health Information National Trends Survey (HINTS) to yield a more culturally relevant cancer information survey to document the health seeking behaviors and perceptions of cancer risks and preventability of AI adults residing in the Hualapai Indian community. A team of health care providers, educators and cancer survivors (six native and three non-natives) completed the adaptation. Four trained native surveyors administered the survey using a random household survey design. The Hualapai HINTS was well accepted (<5% refusal rate) and was completed by 205 adults (20.5% of all adult residents). Respondents reported a preference for and a trust in verbal cancer information and communication with health care professionals (77.1% preference; 57.4% trust) and at workshops (75.2% preference; 45.5% trust). Respondents were aware of some health behaviors associated with a reduced cancer risk, e.g., avoid tobacco use and need for screening. Respondents were less well informed about the role of diet and exercise. These findings were used to inform local cancer prevention education efforts and to develop a series of monthly workshops that engaged local health professionals to reinforce and discuss pathways of the primary role of lifestyle related factors, specifically diet and exercise in reducing cancer risk.


Subject(s)
Health Knowledge, Attitudes, Practice/ethnology , Indians, North American , Information Seeking Behavior , Neoplasms/ethnology , Patient Acceptance of Health Care/ethnology , Adult , Aged , Diet , Early Detection of Cancer , Exercise , Female , Health Behavior , Humans , Life Style , Male , Middle Aged , Neoplasms/prevention & control , Trust , United States , Young Adult
4.
Prev Chronic Dis ; 11: E166, 2014 Sep 25.
Article in English | MEDLINE | ID: mdl-25254984

ABSTRACT

INTRODUCTION: In the United States, type 2 diabetes has reached epidemic proportions among indigenous people. Community-based participatory research offers American Indian communities and university partners an opportunity to integrate skills in community action and systematic inquiry to develop locally acceptable primary prevention interventions to combat diabetes risk factors. The Hualapai Tribe and the University of Arizona designed, implemented, and assessed a school-based physical activity intervention to reduce diabetes risk factors among youth. METHODS: During a 2-year period, trained community members led in-school physical activity classes 2 times per week among students in grades 3 through 8. Body mass index (BMI), fitness measures, and fasting blood glucose level were measured on 6 occasions. Descriptive statistics and t tests were used to assess change in outcome measures. RESULTS: Of the more than 100 youth who took part in the physical activity classes for 2 years, 71 youth (38 male, 33 female) participated in 3 or more data collection sessions. Over time, the percentage of youth with a high fasting blood glucose level of more than 125 mg/dL decreased concurrently with significant improvements in fitness measures. However, BMI increased in both male and female participants. The high number of youth who missed more than 3 data collection sessions was attributed to poor school attendance and tardiness. CONCLUSION: Classes led by lay physical activity leaders can affect diabetes risk factors in youth. Incongruous health and fitness outcomes suggest that one indicator does not adequately define the risk profile; BMI alone may not be sufficient as a measure of diabetes risk in youth.


Subject(s)
Diabetes Mellitus, Type 2/prevention & control , Health Promotion , Indians, North American , Motor Activity , Physical Fitness/physiology , Arizona/epidemiology , Child , Diabetes Mellitus, Type 2/epidemiology , Female , Humans , Male , Overweight , Program Evaluation , Schools
5.
Am J Public Health ; 96(9): 1623-8, 2006 Sep.
Article in English | MEDLINE | ID: mdl-16873759

ABSTRACT

OBJECTIVES: Using a community-based participatory research approach, a tribe-university team conducted a formative assessment of local factors that influence youth wellness to guide the design of a culturally and locally relevant health promotion program. METHODS: Open-ended interviews with key informants, a school self-assessment using the Centers for Disease Control's School Health Index, and a locally generated environmental inventory provided data that were triangulated to yield a composite of influential factors and perceived need within the community. RESULTS: Family involvement and personal goal setting were identified as key to youth wellness. Supportive programs were described as having consistent adult leadership, structured activities, and a positive local and regional image. Availability of illicit drugs and alcohol, poor teacher attitude, and lack of adult involvement were significant negative factors that impact youth behavior. CONCLUSIONS: Local/native (emic) and university/nonnative (etic) perspectives and abilities can be combined to yield a culturally relevant formative assessment that is useful to public health planning. In this collaborative effort, standard means of data collection and analysis were modified in some cases to enhance and build upon the knowledge and skills of community researchers.


Subject(s)
Community-Institutional Relations , Health Promotion , Health Status , Indians, North American , Adolescent , Adolescent Health Services , Cultural Characteristics , Data Collection , Family Health , Female , Health Promotion/organization & administration , Humans , Male , Program Development , United States
6.
Am J Health Behav ; 29(5): 413-22, 2005.
Article in English | MEDLINE | ID: mdl-16201858

ABSTRACT

OBJECTIVE: To assess the feasibility of using a portion of the Family Environment Scale (FES) with American Indian families and to describe the mean family profile exhibited by one Native community. METHODS: The cohesion, expressiveness, conflict and active-recreational orientation subscales of the FES were administered to 130 adults, representing 65 families. RESULTS: Mean responses reveal a pattern of average levels of cohesion and expressiveness, concurrent with high levels of family conflict. CONCLUSIONS: Outcomes illustrate the feasibility and utility of this scale in assessing and guiding health promotion services within Native communities. Results suggest Native families have a distinctive family profile.


Subject(s)
Conflict, Psychological , Family Relations , Indians, North American , Adolescent , Adult , Female , Humans , Male , Middle Aged , Social Environment , Surveys and Questionnaires
7.
Environ Pollut ; 123(1): 85-93, 2003.
Article in English | MEDLINE | ID: mdl-12663208

ABSTRACT

A sample of 124 deserted/infertile dipper (Cinclus cinclus) eggs was collected in south-west Ireland during six seasons (1990-1994 and 1999) and analysed for mercury and organochlorines. Mercury was detected in three of the 6 years but no trend was observed. DDT occurred above the limit of detection in only two eggs, one each in 1993 and 1994. In contrast, two derivatives of DDT (DDE and TDE) were found much more commonly. DDE occurred in over 87% of eggs, while TDE contamination was less widespread and reached a maximum of 60% in 1993, with none detected in 1991 or 1999. There was no trend in occurrence of DDE or TDE across years. PCB contamination was present consistently over the 10-year period, with little change in the proportion of contaminated eggs collected over time. In all years, the lowest recorded occurrence of total PCBs was 69% expressed on a formulation basis as Arochlor 1254. PCB congeners 138, 153 and 180 dominated. The congener pattern was similar across years with the exception of 1990 when congener 118 dominated. A distinct trend of high values of contaminants was observed in 1990 and 1993. In 1990, PCB 118 was the dominant contaminant, while in 1993, HEOD, DDE, PCB 138 and PCB 153 were primary contributors to the observed result. Other contaminants (HCB, PCB 101, gamma-HCH, PCB 170 and PCB 180) showed little obvious patterns between years and occurred at relatively low levels. No pattern was observed in contaminants when eggs were grouped according to river or altitude. These data provide a baseline for organochlorine contamination levels in Irish freshwater ecosystems against which future trends can be assessed.


Subject(s)
Birds , Eggs/analysis , Environmental Monitoring/methods , Hydrocarbons, Chlorinated , Insecticides/analysis , Mercury/analysis , Animals , Female , Fresh Water , Ireland , Reference Values
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