Risk factors for homelessness and housing instability in the first episode of mental illness: Initial findings from the AMONT study.

AIM: People living with mental illness are more likely than the general population to experience adverse housing outcomes, including homelessness. The aim of the current study is to examine residential status when participants have their first contact with mental health services, and the correlates of residential status at that moment. METHODS: First-time mental health service users were recruited from seven clinical sites across Québec. Data on residential status at entry in the project, as well as demographic, clinical and social variables, were collected using self-report and interviewer-rated questionnaires. Participants were classified as 'Homeless', 'At risk of homelessness' and 'Stably Housed', and correlates of residential status were identified through multivariate logistic regression and unbiased recursive partitioning. RESULTS: Among the 478 participants, 206 (43.1%) were in stable housing, 171 (35.8%) were at risk of homelessness and 101 (21.1%) were classified as homeless. Placement in a youth protection facility was strongly associated with adverse housing outcomes, while having a high school diploma and more social support were associated with more stable housing situations. CONCLUSIONS: First-time mental health service users are likely to experience a range of adverse housing situations, indicating the potential for clinical sites to implement homelessness primary prevention strategies. Factors related to family, foster care and schooling seem to be particularly salient in understanding risk of homelessness in first-time mental health service users, calling for intersectoral action to prevent adverse psychosocial outcomes in this population.

Housing trajectories and the risk of homelessness among new mental health service users: Protocol for the AMONT study.

AIMS: High rates of mental illness among individuals experiencing homelessness, as well as documented contacts with psychiatric services prior to episodes of homelessness, indicate that early intervention could play a key role in homelessness prevention. Decision-makers and clinical teams need longitudinal data on housing trajectories following initial contact with psychiatric services, as well as on predictors of risk of housing instability and homelessness. This paper describes the AMONT study, a mixed-methods naturalistic longitudinal cohort study of individuals identified as new psychiatric service users in seven clinical sites across the province of Québec (Canada). METHODS: The goal of AMONT is to examine the housing situations of individuals over 36 months after their initial contact with psychiatric services, and to identify environmental and individual correlates and predictors of housing outcomes. Participants complete a broad battery of instruments at baseline and follow-up assessments after 24 and 36 months. We explore housing stability following an initial episode of psychiatric service use from the perspective of service users, family members, and service providers, through qualitative interviews. RESULTS AND CONCLUSIONS: The findings from the AMONT study will yield a better understanding of the residential pathways of individuals with mental illness, from their first contact with psychiatric services and for 3 years subsequently. This will inform service providers, decision-makers and managers on the specific housing concerns and issues that affect first-time mental health service users. This in turn can lead to the development and implementation of evidence-informed practices and policies that aim to prevent instability and homelessness.

Renal toxicity and biokinetics models after repeated uranium instillation.

During nuclear fuel processing, workers can potentially be exposed to repeated inhalations of uranium compounds. Uranium nephrotoxicity is well documented after acute uranium intake, but it is controversial after long-term or protracted exposure. This study aims to analyze the nephrotoxicity threshold after repeated uranium exposure through upper airways and to investigate the resulting uranium biokinetics in comparison to reference models. Mice (C57BL/6J) were exposed to uranyl nitrate (0.03-3 mg/kg/day) via intranasal instillation four times a week for two weeks. Concentrations of uranium in urines and tissues were measured at regular time points (from day 1 to 91 post-exposure). At each exposure level, the amount of uranium retained in organs/tissues (kidney, lung, bone, nasal compartment, carcass) and excreta (urine, feces) reflected the two consecutive weeks of instillation except for renal uranium retention for the highest uranium dose. Nephrotoxicity biomarkers, KIM-1, clusterin and osteopontin, are induced from day 4 to day 21 and associated with changes in renal function (arterial fluxes) measured using non-invasive functional imaging (Doppler-ultrasonography) and confirmed by renal histopathological analysis. These results suggest that specific biokinetic models should be developed to consider altered uranium excretion and retention in kidney due to nephrotoxicity. The threshold is between 0.25 and 1 mg/kg/day after repeated exposure to uranium via upper airways.

Competencies for occupational therapy practice in homelessness: A Delphi study.

BACKGROUND: Homelessness is growing internationally, and resources to guide occupational therapy practice in this area are needed. OBJECTIVES: To identify competencies needed for occupational therapists to support individuals during and following homelessness. MATERIAL AND METHODS: We conducted a three-round Delphi study with occupational therapy practitioners and researchers with expertise in homelessness. RESULTS: Of 35 potential participants, n = 16 participated in Round I, n = 20 participated in Round II, and n = 18 participated in Round III. Participants included occupational therapists and researchers in Canada, United States, Brazil, UK, Ireland and New Zealand. Consensus was achieved on a total of 93 competencies in 10 categories after 15 were eliminated in Rounds II and III. The categories with the greatest number of competencies included occupational knowledge (n = 18), followed by psychosocial competencies (n = 16). CONCLUSIONS AND SIGNIFICANCE: This study represents the first to identify the competencies needed for occupational therapists working in the area of homelessness. Practitioners and educators are encouraged to view the identified competencies as a guide for the professional development of occupational therapists in this context. Stakeholders consulted for this study were able to communicate in English and situated in middle to high-income countries. As such, the competencies identified in this study only apply to these sociocultural contexts.

Bridging the transition from homelessness: Developing an occupational therapy framework.

BACKGROUND: Occupational therapists support individuals experiencing homelessness in traditional roles, and occupational therapy positions focussed specifically on homelessness appear to be growing. OBJECTIVES: To develop and refine a framework to guide occupational therapy practice and research in homelessness. METHOD: We developed a framework and refined it through a stakeholder consultation process conducted with 17 international occupational therapy experts using an online survey. In this survey, we presented an initial framework and requested qualitative feedback. We analyzed this qualitative data using content analysis. RESULTS: Stakeholder feedback was categorized into eight recommendations: (1) Revision to the 'four processes'; (2) Emphasizing social justice and systems-level advocacy; (3) Reflecting intersectionality; (4) Emphasizing meaningful activity; (5) Emphasizing peer support; (6) Incorporating a focus on independent living skills; (7) Increasing a focus on an activity for addressing substance misuse; and (8) Acknowledging cognitive and physical health. Each of these recommendations was incorporated into a refined version of this framework. These recommendations and a refined version of the framework are presented in this paper. CONCLUSIONS: We have developed and refined a framework aimed at guiding practice and research in occupational therapy in homelessness that will be evaluated in future research. SIGNIFICANCE: Though a range of frameworks exists for guiding the practice of occupational therapists more generally, this framework represents the first that is focussed specifically on guiding occupational therapy practice and research with individuals who experience homelessness. Research and practice implications are discussed.

Barriers and facilitators of access and utilization of mental health services among forensic service users along the care pathway.

BACKGROUND: The verdict of Not Criminally Responsible on account of a Mental Disorder (NCRMD) is increasingly used to access specialized mental health services in Canada and elsewhere. This situation highlights the importance of ensuring timely access to services in the community to prevent violence and justice involvement. The objective of the present study is to identify individual and contextual barriers and facilitators of access to mental health services during the period preceding an offense leading to a verdict of NCRMD. METHODS: The sample includes 753 people found NCRMD in Québec, Canada. All episodes of mental health hospitalizations and service use before the index offense were identified using provincial administrative health data, for an average period of 4.5 years. Access was conceptualized as a function of the possibility of seeking, reaching and receiving appropriate health care services, based on Lévesque and colleagues patient-centred model of access to care. Generalized linear models were computed to identify the individual and contextual predictors of: (1) seeking mental healthcare (at least one contact with any type of services for mental health reasons); (2) reaching psychiatric care (at least one contact with a psychiatrist); (3) receiving psychiatric care, operationalized as (3a) continuity and (3b) intensity. Factors associated with volume of emergency mental health services were examined as exploratory analysis. RESULTS: Geographical considerations were highly important in determining who reached, and who received specialized mental health care - above and beyond individual factors related to need. Those who lived outside of major urban centres were 2.6 times as likely to reach psychiatric services as those who lived in major urban centres, and made greater use of emergency mental health services by 2.1 times. Living with family decreased the odds of seeking mental healthcare by half and the intensity of psychiatric care received, even when adjusting for level of need. CONCLUSIONS: Findings support efforts to engage with the family of service users and highlights the importance of providing resources to make family-centred services sustainable for health practitioners. Health policies should also focus on the implementation of outreach programs, such as Forensic Assertive Community Treatment teams as part of prevention initiatives.

[Complex Trauma and Forensic Mental Health Services: Towards Trauma-informed Care]. / Traumatismes complexes et services psycholégaux : vers des pratiques sensibles au trauma.

Objectives Exposure to repeated traumatic events during childhood and adolescence is associated with high prevalences of mental illness, addictions, physical health conditions, and psychosocial difficulties (Felitti et al., 2019). The most common consequence of exposure to trauma is violence towards self and others (Hughes et al., 2017). The very high prevalence of complex trauma among forensic mental health service users challenges these settings to modify their practices, training approaches, policies, and service delivery approaches. The objective of this article is to contribute to such a transformation of forensic mental health services by clarifying the impacts of complex trauma on the trajectories and experiences of forensic mental health services users, as well as practices responding to complex trauma. Methods We reviewed the published and grey literature on complex trauma among forensic mental health service users. After synthesizing the findings, they were contrasted with our experiences as clinicians and researchers in the field of forensic mental health care through the development of a case vignette. Results We first identify the role of complex trauma and victimization in the development and maintenance of violent behaviours. We describe the negative experiences of services and care settings reported by individuals with complex trauma in the absence of recognition and understanding of traumatic experiences and their impacts. We highlight the fundamental principles of trauma-informed care (trust and transparency; safety; peer support; collaboration and reciprocity; empowerment and choice; sensitivity to gender, cultural and historical differences), as well as the clinical and organizational approaches emerging from those principles. Next, we describe the approaches developed internationally to apply and implement trauma-informed care in forensic mental health setting, and the opportunities and challenges associated with their implementation in the Québec context. Conclusion To date, few studies have documented and evaluated the implementation of trauma-informed care in forensic mental health settings. The literature reviewed in this paper indicates that an in-depth understanding of complex trauma among forensic mental health service users should be at the core of contemporary forensic research, policies and practices.

[Beyond Housing: The Heterogenous Effect of Housing First on Criminal Justice Outcomes Among Homeless People With Mental Illness]. / Au-delà du logement : l'effet hétérogène de Logement d'abord sur l'implication criminelle de personnes vivant avec un trouble mental.

Background Housing First does not, on average, reduce criminal justice involvement. This analysis aims to test whether the overall absence of an impact is due to intervention effect heterogeneity as a function of the pattern of lifetime criminal justice involvement, identified through latent class analysis conducted through earlier work. Methods This analysis relied on data from the Montréal, Toronto and Vancouver sites of the Canadian At Home/Chez Soi randomized controlled trial, merged with administrative records of lifetime criminal charges (N = 1,321). Negative binomial models with interaction terms were used to estimate the impact of Housing First, in comparison to treatment as usual, on violent charges, acquisitive charges (e.g., theft, sex work), and administration of justice charges (e.g., breach of probation), for each pre-identified profile. Results Participants with past criminal justice involvement associated with a chronic history of homelessness or with criminalized substance use experienced a decrease in violent charges as a result of Housing First, whereas those with no or little past criminal justice involvement experienced a marginal increase. Housing First did not affect acquisitive or administration of justice charges, regardless of profile. Conclusions Findings suggest that integrating criminological or forensic mental health tools, knowledge and approaches into the multidisciplinary teams that support Housing First service users may be an effective solution, so that all aspects of their recovery, including potential criminogenic needs, are addressed. Future research should focus on the feasibility and effectiveness of such adjunct interventions.

Radiation dose rate effects: what is new and what is needed?

Despite decades of research to understand the biological effects of ionising radiation, there is still much uncertainty over the role of dose rate. Motivated by a virtual workshop on the "Effects of spatial and temporal variation in dose delivery" organised in November 2020 by the Multidisciplinary Low Dose Initiative (MELODI), here, we review studies to date exploring dose rate effects, highlighting significant findings, recent advances and to provide perspective and recommendations for requirements and direction of future work. A comprehensive range of studies is considered, including molecular, cellular, animal, and human studies, with a focus on low linear-energy-transfer radiation exposure. Limits and advantages of each type of study are discussed, and a focus is made on future research needs.

Leisure Possibilities of Adults Experiencing Poverty: A Community-Based Participatory Study.

Background. Poverty disproportionally affects persons with disabilities, elderly individuals and racialized groups. Leisure, play and rest are not prioritized in either services for or research with people living in poverty. Purpose. This study aims to examine the facilitators and barriers to participation in meaningful leisure activities for adults living in poverty. Method. We used community-based participatory research and art-based elicitation strategies with 39 service users at a food security organization. Findings. Individuals experiencing poverty value and engage in a variety of free and affordable leisure activities, but they are not afforded the necessary leisure opportunities, accommodations and supports as the general population. We co-created a map of local leisure resources to foster collective capacity in leisure planning, and to support organizations working with this population. Implications. Occupational therapists can work alongside members of underserved communities to uncover and address the systemic and local contextual barriers to engagement in leisure activities.

[How to Help Young People with Early Psychosis avoid Homlessness?] / Comment aider les jeunes atteints de psychose à éviter l'itinérance ?

Objectives Based on clinical experience and literature, this article aims to stimulate reflection among the actors involved concerning the organization of services and the interventions to be favored with young people living both a first episode of psychosis and a situation of residential instability or homelessness. The objective of this article is to provide an overview of the literature on the situation of these young people and their needs, the challenges they face in their pathway within the healthcare system and the various interventions to consider with them both to prevent or exit homelessness. Method This literature review presents a narrative synthesis of articles from literature reviews or primary studies published in French or English between 1995 and March 2021, with a focus on the services and intervention practices implemented in Quebec in recent years. Certain interventions can be made at different periods of time in a young person's journey to change their trajectory and prevent homelessness or limit its duration and consequences. Throughout this article, a case study will illustrate these interventions occurring at different times in the life of a young person. Results The risk of residential instability and homelessness in young people living with emerging psychosis is higher than in the general population. This situation can contribute to the onset or worsening of psychosis due to the stress associated with difficult living conditions and the increased possibilities of victimization experiences. This great precariousness can also be the consequence of psychosis and its associated conditions. However, very few studies focus specifically on young people experiencing both a first episode of psychosis and a situation of homelessness or residential instability. The instability associated with homelessness complicates their pathway to mental health care, delays their access to the appropriate services and interferes with their engagement in follow-up. Interventions aimed at preventing homelessness include support in the transition to adulthood and identifying situations of residential instability. Regarding the organization of care, integrated mental health service centers for young people and the development of partnerships, networking and intersectorality make it possible to overcome certain challenges. Intensive outreach interventions models as well as interventions aiming residential stability are favorable to young people who are already experiencing homelessness. Conclusion Residential instability and homelessness imply several challenges faced by young people living with emerging psychosis concerning the access, the continuity and the quality of mental health services. Integrated interventions both to prevent or exit homelessness can be implemented to stem this problem.

Investigation of catalysts M/CeO2 (M = Pt, Rh, or Pd) for purification of CO2 derived from oxycombustion in the absence or presence of water.

Oxyfuel combustion is a promising technology to produce a CO2-rich flue gas ready suitable for sequestration or valorization. But its storage as well as its further valorization requires to increase the CO2 purification as a small amount of CO and NOx are produced during combustion. Based on the technology developed for three-way converters, similar systems, i.e., M/CeO2 where M is Pt, Pd, or Rh, were studied for NO-CO abatement in a gas stream similar to those obtained when an oxyfuel combustion is performed. The results evidenced that the role of the metal nature influences the performances obtained on NO-CO abatement, platinum supported on ceria being the most efficient catalyst. We also measured the impact of the presence of water in the reaction stream on the catalytic activity of these materials. It appears that the presence of water has a beneficial effect on the different reactions due to a water gas shift reaction that increases the reduction of the NO and favors the formation of N2. The study pointed out that platinum supported on ceria remained the best catalyst, under these wet operating conditions close to industrial ones, for purification of oxyfuel combustion exhausts.

Cognitive effects of low dose of ionizing radiation - Lessons learned and research gaps from epidemiological and biological studies.

The last decades have seen increased concern about the possible effects of low to moderate doses of ionizing radiation (IR) exposure on cognitive function. An interdisciplinary group of experts (biologists, epidemiologists, dosimetrists and clinicians) in this field gathered together in the framework of the European MELODI workshop on non-cancer effects of IR to summarise the state of knowledge on the topic and elaborate research recommendations for future studies in this area. Overall, there is evidence of cognitive effects from low IR doses both from biology and epidemiology, though a better characterization of effects and understanding of mechanisms is needed. There is a need to better describe the specific cognitive function or diseases that may be affected by radiation exposure. Such cognitive deficit characterization should consider the human life span, as effects might differ with age at exposure and at outcome assessment. Measurements of biomarkers, including imaging, will likely help our understanding on the mechanism of cognitive-related radiation induced deficit. The identification of loci of individual genetic susceptibility and the study of gene expression may help identify individuals at higher risk. The mechanisms behind the radiation induced cognitive effects are not clear and are likely to involve several biological pathways and different cell types. Well conducted research in large epidemiological cohorts and experimental studies in appropriate animal models are needed to improve the understanding of radiation-induced cognitive effects. Results may then be translated into recommendations for clinical radiation oncology and imaging decision making processes.

Renal adaptive response to exposure to low doses of uranyl nitrate and sodium fluoride in mice.

BACKGROUND: Despite their differences in physicochemical properties, both uranium (U) and fluoride (F) are nephrotoxicants at high doses but their adverse effects at low doses are still the subject of debate. METHODS: This study aims to improve the knowledge of the biological mechanisms involved through an adaptive response model of C57BL/6 J mice chronically exposed to low priming doses of U (0, 10, 20 and 40 mg/L) or F (0, 15, 30 and 50 mg/L) and then challenged with acute exposure of 5 mg/kg U or 7.5 mg/kg NaF. RESULTS: We showed that an adaptive response occurred with priming exposures to 20 mg/L U and 50 mg/L F, with decreased levels of the biomarkers KIM-1 and CLU compared to those in animals that received the challenge dose only (positive control). The adaptive mechanisms involved a decrease in caspase 3/7 activities in animals exposed to 20 mg/L U and a decrease in in situ VCAM expression in mice exposed to 50 mg/L F. However, autophagy and the UPR were induced independently of priming exposure to U or F and could not be identified as adaptive mechanisms to U or F. CONCLUSION: Taken together, these results allow us to identify renal adaptive responses to U and F at doses of 20 and 50 mg/L, probably through decrease apoptosis and inflammatory cell recruitment.

Current Landscape of Teaching Diversity in Occupational Therapy Education: A Scoping Review.

IMPORTANCE: Critical research in health professions education makes clear the role of educational institutions in perpetuating problematic discourses related to diversity, as well as their potential role in dismantling and rebuilding those discourses to reflect the realities of power relations that create systemic injustice. OBJECTIVE: To provide a comprehensive overview of current pedagogical practices and educational paradigms used by occupational therapy educators to teach concepts of, and skills for, equity and diversity. DATA SOURCES: Seven education and health care databases were searched for articles published between 2007 and 2018. STUDY SELECTION AND DATA COLLECTION: Consensually developed criteria were refined until an agreement rate of >80% was achieved among the authors. Inclusion criteria focused on entry-level occupational therapy education across the world and explicitly examined approaches to teaching diversity. All articles meeting the criteria were kept for full-text review (N = 87). FINDINGS: Diversity in professional occupational therapy education programs is taught within five main underlying educational paradigms and theories: competency-based (44%), social justice (29%), critical (11%), social accountability (10%), and constructivism (6%). Within these paradigms, 14 key pedagogical practices were applied, with community service learning (37%), international service learning (25%), and didactic or course-based practices (23%) making up the majority of pedagogical practices. CONCLUSIONS AND RELEVANCE: Although current occupational therapy research demonstrates a trend toward critical paradigms and practices, problematic cultural competency theories and uncritical international service learning practices continue to dominate occupational therapy education for diversity. Educators should implement pedagogies and approaches within critical educational paradigms. WHAT THIS ARTICLE ADDS: This article highlights the importance to occupational therapy education of attending to coherence across educational ethics, paradigms, and learning outcomes in teaching for diversity and health equity.

Catalytic wet air oxidation of high BPA concentration over iron-based catalyst supported on orthophosphate.

The catalytic performance of Fe supported on nickel phosphate (NiP) was evaluated for the removal of bisphenol A (BPA) by catalytic wet air oxidation (CWAO) at 140 °C and 25 bar of pure oxygen pressure. The prepared NiP and Fe/NiP materials were fully characterized by XRD, N2-physisorption, H2-TPR, TEM, and ICP analysis. Iron (Fe/NiP) impregnation of NiP support enhanced the BPA removal efficiency from 37.0 to 99.6% when CWAO was performed. This catalyst was highly stable given the operating conditions of acidic medium, high temperature, and high pressure. The Fe/NiP catalyst showed an outstanding catalytic activity for oxidation of BPA, achieving almost complete removal of BPA in 180 min at a concentration of 300 mg/L, using 4 g/L of Fe/NiP. No iron leaching was detected after the CWAO of BPA. The stability of Fe/NiP was performed over three consecutive cycles, noting that BPA conversion was not affected and iron leaching was negligible. Therefore, this catalyst (Fe/NiP) could be considered as an innocuous and effective long-lasting catalyst for the oxidation of harmful organic molecules.

Current emergency response in montreal: How does it fit in the services offered to homeless people who use substances?

Background This paper presents an assessment of the current emergency response to homeless people who use substances in Montreal, a major North American city. This project addresses the rising concern about homelessness in high-income countries. Several studies have shown that homeless people frequently use emergency services (i.e., police, paramedical, and hospital), especially in the context of substance use. Yet, the key actors' perspectives are poorly documented. Method Our team conducted a needs analysis using a deliberative democratic evaluation. Data collection strategies included an intersectoral World Café (n = 34, including police, specialized professionals, community stakeholders, political representatives, researchers, and people who have been homeless) and individual interviews with health professionals (n = 5) and homeless people (n = 8). We performed a thematic content analysis based on a conceptual framework of access to health care and of collaboration. Findings This study provided key information on the role of emergency services and the needs of key actors, in terms of the dimensions of access to health care (approachability, acceptability, availability, and appropriateness) and continuity. Our main results show that, according to the participants, the emergency response is relevant when homeless people are a danger to themselves or to others, and during episodes of acute physical and psychological care. However, emergency service providers still stigmatize homelessness and substance use, which negatively affects intervention quality. Finally, our main results highlight the interdependence between the emergency services and health, social, and community services. Conclusion The emergency response is necessary and appropriate in some situations. It remains important to intervene upstream and to improve the attitudes and practices of emergency service providers. Finally, it is necessary to adapt services to the needs of homeless substance users and improve service continuity, for example, by adopting a population-based approach.

Porous carbon materials derived from olive kernels: application in adsorption of organic pollutants.

Adsorption of organic pollutants (OPs), bisphenol A, and diuron, from aqueous solutions onto porous carbon materials (CMs) prepared from olive kernels, have been investigated. The effects of initial pH, initial OP concentration, temperature, and contact time on the adsorption capacity were studied. The adsorption of bisphenol A and diuron onto CMs was found to be optimal at pH 5.6 and 6.9, respectively. It was noticed that the adsorption of those organic pollutants from aqueous solution declined with increasing temperature and the process is exothermic. The rate of adsorption followed the second order kinetic equation. The equilibrium results showed that Langmuir model fits well with the data. The maximum adsorption capacities obtained using the best CM were 476 and 434 mg g-1 for BPA and diuron, respectively. The results showed that CMs made from olive kernels are an excellent and inexpensive biomass waste-derived sorbent. Graphical abstract.

Influences of landscape change and winter severity on invasive ungulate persistence in the Nearctic boreal forest.

Climate and landscape change are drivers of species range shifts and biodiversity loss; understanding how they facilitate and sustain invasions has been empirically challenging. Winter severity is decreasing with climate change and is a predicted mechanism of contemporary and future range shifts. For example, white-tailed deer (Odocoileus virginianus) expansion is a continental phenomenon across the Nearctic with ecological consequences for entire biotic communities. We capitalized on recent temporal variation in winter severity to examine spatial and temporal dynamics of invasive deer distribution in the Nearctic boreal forest. We hypothesized deer distribution would decrease in severe winters reflecting historical climate constraints, and remain more static in moderate winters reflecting recent climate. Further, we predicted that regardless of winter severity, deer distribution would persist and be best explained by early seral forage subsidies from extensive landscape change via resource extraction. We applied dynamic occupancy models in time, and species distribution models in space, to data from 62 camera traps sampled over 3 years in northeastern Alberta, Canada. Deer distribution shrank more markedly in severe winters but rebounded each spring regardless of winter severity. Deer distribution was best explained by anthropogenic landscape features assumed to provide early seral vegetation subsidy, accounting for natural landcover. We conclude that deer dynamics in the northern boreal forest are influenced both by landscape change across space and winter severity through time, the latter expected to further decrease with climate change. We contend that the combined influence of these two drivers is likely pervasive for many species, with changing resources offsetting or augmenting physiological limitations.