Academic literature on the topic 'Mammal fire response'
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Journal articles on the topic "Mammal fire response"
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Kelly, Luke T., Dale G. Nimmo, Lisa M. Spence-Bailey, Michael F. Clarke, and Andrew F. Bennett. "The short-term responses of small mammals to wildfire in semiarid mallee shrubland, Australia." Wildlife Research 37, no. 4 (2010): 293. http://dx.doi.org/10.1071/wr10016.
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Context. Wildfire is a major driver of the structure and function of mallee eucalypt- and spinifex-dominated landscapes. Understanding how fire influences the distribution of biota in these fire-prone environments is essential for effective ecological and conservation-based management. Aims. We aimed to (1) determine the effects of an extensive wildfire (118 000 ha) on a small mammal community in the mallee shrublands of semiarid Australia and (2) assess the hypothesis that the fire-response patterns of small mammals can be predicted by their life-history characteristics. Methods. Small-mammal surveys were undertaken concurrently at 26 sites: once before the fire and on four occasions following the fire (including 14 sites that remained unburnt). We documented changes in small-mammal occurrence before and after the fire, and compared burnt and unburnt sites. In addition, key components of vegetation structure were assessed at each site. Key results. Wildfire had a strong influence on vegetation structure and on the occurrence of small mammals. The mallee ningaui, Ningaui yvonneae, a dasyurid marsupial, showed a marked decline in the immediate post-fire environment, corresponding with a reduction in hummock-grass cover in recently burnt vegetation. Species richness of native small mammals was positively associated with unburnt vegetation, although some species showed no clear response to wildfire. Conclusions. Our results are consistent with the contention that mammal responses to fire are associated with their known life-history traits. The species most strongly affected by wildfire, N. yvonneae, has the most specific habitat requirements and restricted life history of the small mammals in the study area. The only species positively associated with recently burnt vegetation, the introduced house mouse, Mus domesticus, has a flexible life history and non-specialised resource requirements. Implications. Maintaining sources for recolonisation after large-scale wildfires will be vital to the conservation of native small mammals in mallee ecosystems.
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Hutchen, Jenna, Logan A. Volkmann, and Karen E. Hodges. "Experimental designs for studying small-mammal responses to fire in North American conifer forests." International Journal of Wildland Fire 26, no. 6 (2017): 523. http://dx.doi.org/10.1071/wf16223.
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Climate change is altering fire regimes. As fire regimes change, it is important to understand how mammals respond to these altered post-fire landscapes. Because fires vary in size, severity and landscape context, it is important to know the experimental designs and response variables used to address post-fire responses of mammals. We analysed 48 papers published from 1988 to 2015 that examined responses of small mammals to natural or prescribed fire in North American conifer forests. These papers used different experimental contrasts (e.g. burned vs unburned sites, time series, within-fire heterogeneity). Most studies (89.6%) presented species richness or index-derived abundances of common species as their response variable(s). Many studies did not fully describe the fires being examined; these omissions make it more difficult to interpret and compare results among studies. The limited scope of inference presented by the papers in this review leads us to recommend a minimal set of information that should be presented about each fire studied. We conclude by outlining how different experimental designs and response variables can be used for effective inference. We highlight major pathways forward for examining responses of small forest mammals to the important changes in fire regime that are occurring.
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Seville, R., Nancy Stanton, and David Spildie. "Long-Term Response of Small Mammal Communities to the 1988 Huckleberry Mountain Fire." UW National Parks Service Research Station Annual Reports 21 (January 1, 1997): 64–68. http://dx.doi.org/10.13001/uwnpsrc.1997.3329.
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Natural burns are common in the boreal forests of the Rocky Mountains. While a considerable amount of research has focused on post-burn responses of vegetation and, more recently, large mammals, there have been few studies on responses of small mammal communities in these forests. The primary objective of this study was to revisit study sites on Huckleberry Mountain established immediately following the 1988 Yellowstone fires (Stanton et al., 1991, 1992; Spildie, 1994) to assess small mammal population trends, community structure, and microhabitat preferences on adjacent burned and unburned study sites 9 years post-burn.
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Stevens, Mike, John White, and Raylene Cooke. "Short-term impact of a mega-fire on small mammal communities during prolonged drought." Proceedings of the Royal Society of Victoria 124, no. 1 (2012): 61. http://dx.doi.org/10.1071/rs12061.
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Increased size, severity and frequency of wildfire is predicted as a consequence of prolonged droughts associated with climate change. In south-eastern Australia severe landscape-scale wildfires (mega-fires) have elicited a strong anthropocentric response due to the significant life and property impacts. However, the impact of mega-fires on fauna, habitat and subsequent management actions are poorly understood. Small mammals were surveyed to examine mega-fire impact using the post-2006 wildfire landscape of the Grampians National Park, Victoria, Australia. Long-term research sites were established with 9620 trap nights completed in autumn 2008 across thirty-six sampling units. Vegetation structure, floristics, fire severity, patch size and overall fuel hazard were measured to investigate correlations with changes in small mammal abundance.Two years post-wildfire, rapid resurgence of house mouse (Mus musculus) was detected, conversely the abundance of native small mammal species was severely impacted. No sampling category within the burnt perimeter provided superior refuge presenting potential conservation implications. A habitat vacancy model is introduced where small mammal recolonisation post-wildfire depends on a lack of isolation and connectivity of populations. Floristic and structural contributions of vegetation to higher overall fuel hazard areas are essential in maintaining diverse fauna assemblages. As such, prescribed burning or fire suppression tactics such as ‘patching out’ or ‘burning out’ require consideration when contributing to further reduction of complex habitat patches following fires.
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Doherty, Tim S., Robert A. Davis, Eddie J. B. van Etten, Neil Collier, and Josef Krawiec. "Response of a shrubland mammal and reptile community to a history of landscape-scale wildfire." International Journal of Wildland Fire 24, no. 4 (2015): 534. http://dx.doi.org/10.1071/wf14115.
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Fire plays a strong role in structuring fauna communities and the habitat available to them in fire-prone regions. Human-mediated increases in fire frequency and intensity threaten many animal species and understanding how these species respond to fire history and its associated effect on vegetation is essential to effective biodiversity management. We used a shrubland mammal and reptile community in semiarid south-western Australia as a model to investigate interactions between fire history, habitat structure and fauna habitat use. Of the 15 species analysed, five were most abundant in recently burnt habitat (8–13 years since last fire), four were most abundant in long unburnt areas (25–50 years) and six showed no response to fire history. Fauna responses to fire history were divergent both within and across taxonomic groups. Fire management that homogenises large areas of habitat through either fire exclusion or frequent burning may threaten species due to these diverse requirements, so careful management of fire may be needed to maximise habitat suitability across the landscape. When establishing fire management plans, we recommend that land managers exercise caution in adopting species-specific information from different locations and broad vegetation types. Information on animal responses to fire is best gained through experimental and adaptive management approaches at the local level.
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Lindenmayer, D. B., C. MacGregor, A. Welsh, C. Donnelly, M. Crane, D. Michael, R. Montague-Drake, et al. "Contrasting mammal responses to vegetation type and fire." Wildlife Research 35, no. 5 (2008): 395. http://dx.doi.org/10.1071/wr07156.
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The response of terrestrial mammals and arboreal marsupials to past burning history as well as a year prior to, and then for 4 years after, a major wildfire in 2003 at Booderee National Park, Jervis Bay Territory was quantified. The present study encompassed extensive repeated surveys at a set of 109 replicated sites stratified by vegetation type and fire history. It was found that most species exhibited significant differences in presence and abundance between major vegetation types. Detections of long-nosed bandicoot (Perameles nasuta) increased significantly in all vegetation types surveyed, in both burnt and unburnt areas. Temporal patterns in captures of three species of small mammals (bush rat (Rattus fuscipes), swamp rat (Rattus lutreolus) and brown antechinus (Antechinus stuartii)) showed a trend for lower numbers of captures on burnt sites compared with unburnt sites. Three species of arboreal marsupials, common ringtail possum (Pseudocheirus peregrinus), greater glider (Petauroides volans) and common brushtail possum (Trichosurus vulpecula), were moderately common and all showed marked differences in abundance between vegetation types. Whereas P. peregrinus and P. volans exhibited a temporal decline between 2003 and 2006, T. vulpecula exhibited a general increase from 2003 levels. However, arboreal marsupial responses did not appear to be directly fire related.
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Perry, Justin J., Eric P. Vanderduys, and Alex S. Kutt. "More famine than feast: pattern and variation in a potentially degenerating mammal fauna on Cape York Peninsula." Wildlife Research 42, no. 6 (2015): 475. http://dx.doi.org/10.1071/wr15050.
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Context Global mammal populations continue to be threatened by environmental change, and recent decadal monitoring in northern Australia suggests a collapse in mammal abundance in key locations. Cape York Peninsula has globally significant natural values but there is very little published about the status and distribution of mammals in this region. Aims Following an extensive field survey we investigated two key questions: (i) what is the composition, spatial variation and change from previous regional surveys in the mid to late 1900s in the native terrestrial and arboreal mammal fauna recorded; and (ii) which landscape and site factors best predict mammal richness and abundance. Methods We sampled 202 one-hectare sites across seven locations from 2009 to 2012 in woodlands, closed forestand dune scrub and tussock grasslands. We collected landscape and site-based environmental data for each location, representing fire, weather and vegetation factors. We used generalised linear mixed models to examine the relationship between mammals and these factors. Key results Mammals were generally scarce across the sites and were more abundant and species rich in wet coastal grasslands or closed forests then tropical savanna woodlands. Fire frequency data and the surrounding vegetation complexity were consistent landscape-scale predictors of mammals; ground cover and woody complexity were significant at the site scale. Conclusions Notwithstanding interpretational constraints related to the limited evidence base of historic sampling, the mammal fauna recorded in this study for Cape York Peninsula was similar in composition to the mammal fauna described from 1948–1980 and surveys in 1985, with some species seemingly declining (e.g. Melomys burtoni, Dasyurus hallucatus, Sminthopsis virginiae) and others stable (e.g. Rattus sordidus) or more common (e.g. Rattus tunneyi); however, across all sites abundance was low, and many sites had few or no mammals. Implications In the absence of consistent long-term systematic monitoring it is difficult to determine if this survey and historical surveys represent pre-European patterns for mammals. The absence or low abundance of mammals in most sites suggest that cotemporary patterns may not represent an intact mammal fauna. Due to the equivocal nature of these findings a critical next step is to establish robust monitoring and experimental work to reveal the response of mammals to management interventions.
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Burt, M., R. Seville, Wayne Cummings, and Rebecca Zook. "Long-Term Response of Small Mammal Communities to the 1988 Huckleberry Mountain Fire." UW National Parks Service Research Station Annual Reports 32 (January 1, 2009): 81–87. http://dx.doi.org/10.13001/uwnpsrc.2009.3757.
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Biologists have long been interested in the response of small mammals and their habitat following natural disturbances. The Greater Yellowstone Area (GYA) fires of 1988 have provided opportunities to study short and long term responses. This study continues investigations conducted in the 1990âs following identical methodology at the same sites now 21 years post-fire. We live trapped 256 Clethrionomys gapperi (Red-backed Vole), 116 Peromyscus maniculatus (Deer Mouse), 44 Tamius minimus (Least Chipmunk), 28 Zapus princeps (Western Jumping Mouse), two Microtus montanus (Montane Vole), 1 Thomomys talpoides (Northern Pocket Gopher) and 37 shrews (Sorex ssp.). These results support findings from other investigations regarding the initial early dominance of P. maniculatus in burn areas and C. gapperi in control or non-burn areas, and as time has progressed since the burn, differences between burn and control sites (as measured by community diversity indices) has decreased. As expected calculated Shannon diversity indices (Hâ) in 2009 are higher for at least one of the burn sites than in previous years as the habitat recovers to pre-burn conditions.
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Fontaine, Joseph B., and Patricia L. Kennedy. "Meta-analysis of avian and small-mammal response to fire severity and fire surrogate treatments in U.S. fire-prone forests." Ecological Applications 22, no. 5 (July 2012): 1547–61. http://dx.doi.org/10.1890/12-0009.1.
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Stawski, Clare, Taylor Hume, Gerhard Körtner, Shannon E. Currie, Julia Nowack, and Fritz Geiser. "Post-fire recovery of torpor and activity patterns of a small mammal." Biology Letters 13, no. 5 (May 2017): 20170036. http://dx.doi.org/10.1098/rsbl.2017.0036.
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To cope with the post-fire challenges of decreased availability of food and shelter, brown antechinus ( Antechinus stuartii ), a small marsupial mammal, increase the use of energy-conserving torpor and reduce activity. However, it is not known how long it takes for animals to resume pre-fire torpor and activity patterns during the recovery of burnt habitat. Therefore, we tested the hypothesis that antechinus will adjust torpor use and activity after a fire depending on vegetation recovery. We simultaneously quantified torpor and activity patterns for female antechinus from three adjacent areas: (i) the area of a management burn 1 year post-fire, (ii) an area that was burned 2 years prior, and (iii) a control area. In comparison to shortly after the management burn, antechinus in all three groups displayed less frequent and less pronounced torpor while being more active. We provide the first evidence that only 1 year post-fire antechinus resume pre-fire torpor and activity patterns, probably in response to the return of herbaceous ground cover and foraging opportunities.
Dissertations / Theses on the topic "Mammal fire response"
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Plavsic, Militsa Justine. "Small mammal responses to fire in the Okavango Delta, Botswana." Thesis, University of Cambridge, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.612817.
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Ibebunjo, Chikwendu. "Correlation between muscle fibre characteristics and neuromuscular blockade." Thesis, University of Cambridge, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239629.
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Ricketts, Andrew Michael. "Of mice and coyotes: mammalian responses to rangeland management practices in tallgrass prairie." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/32731.
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Doctor of PhilosophyDepartment of Biology
Brett K. Sandercock
Habitat heterogeneity is a key driver of biodiversity in many ecosystems. In native ecosystems, habitat heterogeneity can arise from multiple drivers including nutrients, topoedaphic conditions, and ecological disturbance. Historically, the prairies of North America existed as a heterogeneous mosaic of habitat conditions created by the interaction of fire and grazing by native ungulates. The focus of many grazing systems has been to minimize disturbance caused by grazing by promoting uniform distributions of grazing animals across management units. Patch-burn grazing is an alternative rangeland management practice that has been proposed to restore historical patch dynamics and biodiversity to rangelands by simulating historical disturbance processes. In my dissertation research, I tested the hypothesis that patch- burn grazing restores habitat heterogeneity to rangelands, and that the resulting habitat heterogeneity can promote biodiversity of native wildlife. I focus on responses of small mammals and coyotes to patch-burn grazing to gain a better understanding of wildlife responses to rangeland management, and because grassland mammals are an ecologically important group. My 3.5-year field study of habitat and small mammal responses to rangeland management showed that: 1) patch-burn grazing created greater heterogeneity in vegetative structure and composition of plant functional groups than in positive and negative controls; 2) habitat heterogeneity created by the interaction of fire and grazing increased small mammal richness and diversity compared to a negative control managed for uniform grazing distributions; 3) the interaction of fire and grazing structured small mammal communities in tallgrass prairie; and 4) population dynamic responses of small mammals to fire and grazing disturbance were species- specific. My 3-year study of coyote survival and resource selection revealed that: 1) rangeland management influences resource selection by coyotes in seasons when they depend on small mammal prey, but not during other seasons; and 2) anthropogenic sources of mortality are important for coyotes at a protected area, even in the absence of harvest. My field results show that restoring the drivers of historical patch dynamics to managed rangelands and publicly held grasslands that are not currently grazed could have profound effects on biodiversity conservation in North America, while continuing to provide ecosystem services to society.
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Namukonde, Ngawo Verfasser], and Jörg U. [Akademischer Betreuer] [Ganzhorn. "Communities of small mammals in Kafue National Park and their response to fire, vegetation and land use / Ngawo Namukonde ; Betreuer: Jörg U. Ganzhorn." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2017. http://d-nb.info/1147567239/34.
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Billard, 1959 Jean-Marie. "Olive inférieure et inhibition cérébelleuse." Paris 6, 1986. http://www.theses.fr/1986PA066044.
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Etude du rôle de l'olive inferieure dans l'inhibition cérébelleuse chez le rat, après destruction sélective de l'O. I. Cette destruction élimine l'action de suppression tonique qu'exercent les fibres grimpantes sur les décharges simples des Purkinje. On observe : a) un accroissement de l'inhibition cérébelleuse dans les premiers jours, ainsi qu'une disfacilitation rubrale et une dépression des activités motrices; b) ces effets régressent jusqu'à 1 mois; c) passe 1 mois le déficit moteur persiste.
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Reid-Wong, Monica. "Small mammal response to habitat change following fire in the taiga of southeastern Manitoba." 2003. http://hdl.handle.net/1993/7829.
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The influence of fire on small mammal populations was investigated in the taiga of southeastern Manitoba. Small mammals were sampled by annual removal trapping in six different habitats over twenty-five years at Taiga Biological Station (TBS). Changes in temporal patterns of short-term abundance and long-term population synchronicity were investigated for fluctuating numbers of small mammals. The southern red-backed vole (Clethrionomys gapperi),the deer mouse (Peromyscus maniculatus), and the masked shrew (Sorex cinereus), were the three most common small mammals captured. Examination of population fluctuations revealed that while fire-induced changes in food availability, cover and moisture were likely responsible for differences in small mammal abundance, populations of individual species were alternatively affected by unknown, large-scale, synchronizing influences. This discovery became evident through the common occurrence of similar peak abundance years for C. gapperi, regardless of habitat-type or distance between sampling sites. Additionally, the examination of annual combined small mammal biomass revealed a distinct pattern, with a repetitive maxima occurring every 3- to 4- yrs at TBS across all six sites...
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Derrick, Anna Merrie. "Small mammal responses to prescribed fire and simulated mammal removal in a longleaf pine ecosystem." 2007. http://purl.galileo.usg.edu/uga%5Fetd/derrick%5Fanna%5Fm%5F200712%5Fms.
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Gurtz, Sharon Peterson. "Habitat selection by small mammals: seasonality of responses to conditions created by fire and topography in tallgrass prairie." 1985. http://hdl.handle.net/2097/27450.
Full textBooks on the topic "Mammal fire response"
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Medin, Dean E. Small mammal responses to diameter-cut logging in an Idaho Douglas-fir forest. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986.
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Medin, Dean E. Small mammal responses to diameter-cut logging in an Idaho Douglas-fir forest. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986.
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Medin, Dean E. Small mammal responses to diameter-cut logging in an Idaho Douglas-fir forest. Ogden, UT: U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1986.
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Medin, Dean E. Responses of birds and small mammals to single-tree selection logging in Idaho. Ogden, Utah: U.S.D.A. Forest Service, Intermountain Research Station, 1989.
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Wilsey, Brian J. Response of Grasslands to Global Change. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198744511.003.0007.
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Global change factors are ecologically-relevant variables that are changing, and that have global impacts. In grasslands, changes in the atmosphere, biological invasions, N deposition, and land-use change are global change factors. Photosynthesis increases under elevated CO2 and C3 plant species respond more strongly than C4 species to CO2 enrichment. Leaf N contents are typically lower under elevated CO2, especially in C3 species, and this is expected to have a negative effect on large grazing mammals. Temperature increases are expected to have significant effects on phenology. Most grasslands are being impacted by biological invasions to various degrees. Communities dominated by exotics are considered to be “novel systems” because they contain species from a variety of regions that do not have an evolutionary history of interaction. Among the most noxious grassland invaders is the red imported fire ant Solonopsis invicta, which lowers ant diversity and negatively affects prey species.
Book chapters on the topic "Mammal fire response"
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López Arribas, Patricia, Maria Elena Martínez Gómez, and Alvaro Zapico Goñi. "Mammary Gland Sarcoidosis." In Sarcoidosis - New Perspectives. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.101400.
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Sarcoidosis is a benign systemic granulomatous pathology of unknown etiology. Mammary involvement is rare, less than 1% of all cases. That is the reason that makes necessary an optimal differential diagnosis to rule out malignant pathology as the main diagnosis. Imaging tests such as mammography, ultrasound, or MRI contribute to the diagnosis but are unable to establish a certain diagnosis. When a mammary sarcoidosis is suspected by fine needle aspiration cytology, exceptional procedures are necessary to confirm the disease and to exclude a coexisting carcinoma. Malignancy may develop in patients with sarcoidosis, sarcoidosis may develop in patients with breast cancer, the two diseases may develop in tandem, or breast cancer may cause a sarcoidosis-like granulomatous response. Other illnesses that should rule out are granulomatous diseases, which could be differentiated into infectious causes such as tuberculosis and primary inflammatory diseases such as idiopathic granulomatous mastitis. The silicone of gel breast implants may originate a sarcoidosis-like reaction as the result of an acceleration of an already existing hypersensitivity response, resulting in breast sarcoidosis. The management of sarcoidosis in the breast is usually enough with an excisional biopsy. The prognosis of mammary sarcoidosis in not unknown.
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Bartlett, Alison. "Encountering public art: monumental breasts and the Skywhale." In Social Experiences of Breastfeeding, 205–18. Policy Press, 2018. http://dx.doi.org/10.1332/policypress/9781447338499.003.0015.
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This chapter is grounded in the idea that more visual imagery of breastfeeding will contribute to its normalisation, and counter the commercial sexualisation of breasts. It suggests, however, that this strategy is not just about seeing but also about feeling. To demonstrate this the chapter turns to a controversial piece of public art — Patricia Piccinini's Skywhale — which was launched in Australia in 2013 and has been touring internationally. The Skywhale is a hot-air balloon in the shape of a fantastical creature of the imagination, which features five giant breasts on each side. This unexpected flying mammal provokes responses wherever it goes, and arguably provides productive ways of engaging public responses to breastfeeding and maternity. This chapter examines responses to Skywhale through broadsheet and social media, and then analyses its affective domain through psychoanalytic concepts and its materiality through the tradition of public art and monuments. The extremes of intimacy and monumentality configured through Skywhale offer an object par excellence for seeing breastfeeding writ large in the public domain, and for feeling the return of the maternal. The chapter argues that this is fundamental to a shift in perceiving breasts as maternal, and breastfeeding as normative.
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Storz, Jay F. "Biochemical adaptation to environmental hypoxia." In Hemoglobin, 176–200. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198810681.003.0008.
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Chapter 8 explores mechanisms of hemoglobin adaptation to environmental hypoxia. Vertebrates living in hypoxic environments face the physiological challenge of optimizing the trade-off between oxygen loading at the respiratory surfaces and oxygen unloading in the tissue capillaries. In air-breathing and water-breathing vertebrates alike, fine-tuned adjustments in hemoglobin-oxygen affinity provide an energetically efficient means of compensating for a reduced oxygen tension of arterial blood. The adaptive significance of such changes is indicated by evolved changes in hemoglobin function in high-altitude mammals and birds, and erythrocytic acclimatization responses to environmental hypoxia in teleost fishes. An important goal for future research is to elucidate the specific physiological mechanisms by which changes in the oxygenation properties of hemoglobin translate into enhancements of whole-animal aerobic performance.
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Steinberg, Paul F. "Recycling Is Not Enough." In Who Rules the Earth? Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780199896615.003.0005.
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Faced with an endless stream of alarming news about the environment—rising temperatures and declining water supplies, population growth and species extinction, oil spills and cancer clusters—people increasingly want to know what can actually be done to address these problems. Concerned parents comb through websites late at night in search of safer products for their children. Students pack lecture halls in hundreds of environmental studies programs that have popped up on college campuses across the globe. Our grocery aisles and magazine stands are filled with advertisements promising that sustainability is just one more purchase around the corner. The major current of environmental thinking today emphasizes the small changes we can make as individuals, which (we are told) will add up to something big. Michael Maniates, a political scientist at Allegheny College, observes that the responsibility for confronting these issues too often “falls to individuals, acting alone, usually as consumers.” Yet solutions that promote green consumerism and changes in personal lifestyles strike many of us as strangely out of proportion with enormous problems like climate change, urban air pollution, and the disappearance of tropical forests. We learn that glaciers are melting and sea levels are expected to rise due to global warming—and in response we are advised to ride a bicycle to work. Scientists tell us that one out of every five mammal species in the world is threatened with extinction, and we react by switching coffee brands. Is it any wonder that people despair that real solutions are not within their grasp? You may suspect that tackling these gargantuan problems will require something more—but what? The answer, it turns out, can be found in a mountain of books and research articles published by thousands of social scientists over the past quarter century. But their discoveries have remained largely hidden from public view.
Conference papers on the topic "Mammal fire response"
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Pacheco, Aryane Ferraz Cardoso. "Apresentação clínica, técnicas diagnósticas e manejo terapêutico no tumor filoide." In 44° Congresso da SGORJ - XXIII Trocando Ideias. Zeppelini Editorial e Comunicação, 2020. http://dx.doi.org/10.5327/jbg-0368-1416-2020130210.
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Introdução: O tumor filoide da mama é uma neoplasia fibroepitelial rara, responsável por menos de 1% dos tumores de mama e incide geralmente em mulheres de 35 a 55 anos. Diferentes estudos o relacionam à rápida globalização, ao sedentarismo, às dietas inadequadas e ao consumo de tabaco e álcool. O tumor filoide pode ser classificado como benigno, limítrofe ou maligno, dependendo do grau de celularidade do estroma, atipia, contagem mitótica e a natureza das bordas do tumor. Objetivos: Relatar a apresentação clínica, as possíveis técnicas diagnósticas e o manejo terapêutico mais recente realizado em casos de tumor filoide e, assim, orientar a classe médica sobre a forma de abordar essa patologia. Material e Métodos: Revisão sistemática retrospectiva da literatura usando os principais bancos de dados on-line. Foram investigadas diferentes publicações sobre tumor filoide, com clínica, abordagem diagnóstica e manejo. Resultados e Conclusão: Os tumores filoides geralmente são indolores, manifestam-se como uma massa mamária lisa, móvel, com bordas bem definidas, de consistência firme. Seu crescimento é lento no início, mas acelera à medida que avança, e é rara a disseminação linfática. Seu diagnóstico pode ser por meio do exame clínico das mamas, quando a massa se torna perceptível ao exame físico. A abordagem inicial é feita por mamografia, mas não permite diferenciação de um fibroadenoma, por isso é feito o diagnóstico histopatológico por biópsia com agulha grossa. A alta celularidade estromal diferencia o tumor do fibroadenoma. O diagnóstico precoce favorece o estadiamento e o tratamento adequado com bom prognóstico. Atualmente, o manejo recomendado é o tratamento cirúrgico, realizando a ressecção do tumor com margens ≥10 mm, pois o tumor filoide não responde bem à terapia sistêmica. Recomenda-se um período de acompanhamento rigoroso, em razão do risco de recorrência.