An Integrative Review of Breastfeeding and Homelessness.

OBJECTIVE: To synthesize the current literature surrounding breastfeeding and homelessness, and to determine the impact of disparities in this population. DATA SOURCES: An integrative search was conducted using Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines and using the search terms "breastfeeding" and "homelessness" throughout electronic databases PubMed, CINAHL, and Scopus. STUDY SELECTION: Inclusion criteria were articles published in English from January 2007 to September 2022. Exclusion criteria were studies published more than 15 years ago, studies published in a language other than English, opinion articles, and irrelevance to breastfeeding and homelessness. The initial search yielded 100 results. After removing duplicates and articles because of irrelevance, the final number of articles for this synthesis was seven. DATA EXTRACTION: Data were extracted from each article, critically appraised using Joanna Briggs Institute criteria, and summarized in a table of evidence. DATA SYNTHESIS: Three common themes were identified: Decreased Breastfeeding Initiation Rates and Duration in the Homeless Population, Impact of Community and Clinical Support, and Breastfeeding Practices Influenced by Individual Factors. CONCLUSION: Providers and nurses should refer patients to the Special Supplemental Nutrition Program for Women, Infants, and Children; use techniques to instill a parent's intent to breastfeed; provide early breastfeeding education; promote breastfeeding initiation within 1 hour of birth; and encourage peer support groups. Although current researchers provide insight into potential barriers and interventions, more research is needed to gain additional data on how to overcome identified barriers to breastfeeding.

Chaparral Shrub Hydraulic Traits, Size, and Life History Types Relate to Species Mortality during California's Historic Drought of 2014.

Chaparral is the most abundant vegetation type in California and current climate change models predict more frequent and severe droughts that could impact plant community structure. Understanding the factors related to species-specific drought mortality is essential to predict such changes. We predicted that life history type, hydraulic traits, and plant size would be related to the ability of species to survive drought. We evaluated the impact of these factors in a mature chaparral stand during the drought of 2014, which has been reported as the most severe in California in the last 1,200 years. We measured tissue water potential, native xylem specific conductivity, leaf specific conductivity, percentage loss in conductivity, and chlorophyll fluorescence for 11 species in February 2014, which was exceptionally dry following protracted drought. Mortality among the 11 dominant species ranged from 0 to 93%. Total stand density was reduced 63.4% and relative dominance of species shifted after the drought. Mortality was negatively correlated with water potential, native xylem specific conductivity, and chlorophyll fluorescence, but not with percent loss in hydraulic conductivity and leaf specific conductivity. The model that best explained mortality included species and plant size as main factors and indicated that larger plants had greater survival for 2 of the species. In general, species with greater resistance to water-stress induced cavitation showed greater mortality levels. Despite adult resprouters typically being more vulnerable to cavitation, results suggest that their more extensive root systems enable them to better access soil moisture and avoid harmful levels of dehydration. These results are consistent with the hypothesis that short-term high intensity droughts have the strongest effect on mature plants of shallow-rooted dehydration tolerant species, whereas deep-rooted dehydration avoiding species fare better in the short-term. Severe droughts can drive changes in chaparral structure as a result of the differential mortality among species.