Sin Nombre hantavirus decreases survival of male deer mice.


:How pathogens affect their hosts is a key question in infectious disease ecology, and it can have important influences on the spread and persistence of the pathogen. Sin Nombre virus (SNV) is the etiological agent of hantavirus pulmonary syndrome (HPS) in humans. A better understanding of SNV in its reservoir host, the deer mouse, could lead to improved predictions of the circulation and persistence of the virus in the mouse reservoir, and could help identify the factors that lead to increased human risk of HPS. Using mark-recapture statistical modeling on longitudinal data collected over 15 years, we found a 13.4% decrease in the survival of male deer mice with antibodies to SNV compared to uninfected mice (both male and female). There was also an additive effect of breeding condition, with a 21.3% decrease in survival for infected mice in breeding condition compared to uninfected, non-breeding mice. The data identified that transmission was consistent with density-dependent transmission, implying that there may be a critical host density below which SNV cannot persist. The notion of a critical host density coupled with the previously overlooked disease-induced mortality reported here contribute to a better understanding of why SNV often goes extinct locally and only seems to persist at the metapopulation scale, and why human spillover is episodic and hard to predict.






Luis AD,Douglass RJ,Hudson PJ,Mills JN,Bjørnstad ON




Has Abstract


2012-06-01 00:00:00












  • Direct and indirect effects of plant and frugivore diversity on structural and functional components of fruit removal by birds.

    abstract::Seed dispersal is an important ecosystem function, but it is contentious how structural and functional diversity of plant and bird communities are associated with seed-dispersal functions. We used structural equation models to test how structural (i.e., abundance, species richness) and functional diversity (i.e., func...


    pub_type: 杂志文章


    authors: Quitián M,Santillán V,Espinosa CI,Homeier J,Böhning-Gaese K,Schleuning M,Neuschulz EL

    更新日期:2019-02-01 00:00:00

  • Food-web modification by an invertebrate predator in the Great Salt Lake (USA).

    abstract::During unusually wet years the salinity of the Great Salt Lake (Utah) decreased from above 100 g/L to 50 g/L. This allowed the predaceous insect Trichocorixa verticalis to invade the pelagic region of the lake and reach a mean summer density of 52/m3. Concurrent changes in the pelagic ecosystem were: a decrease in the...


    pub_type: 杂志文章


    authors: Wurtsbaugh WA

    更新日期:1992-02-01 00:00:00

  • Performance of two Picea abies (L.) Karst. stands at different stages of decline : I. Carbon relations and stand growth.

    abstract::This is the first in a series of papers on the growth, photosynthetic rate, water and nutrient relations, root distribution and mycorrhizal frequency of two Norway spruce forests at different stages of decline. One of the stands was composed of green trees only while the other included trees ranging in appearance from...


    pub_type: 杂志文章


    authors: Oren R,Schulze E-,Werk KS,Meyer J,Schneider BU,Heilmeier H

    更新日期:1988-02-01 00:00:00

  • Ribulose-1,5-bis-phosphate carboxylase activity in altitudinal populations of Espeletia schultzii Wedd.

    abstract::The ribulose-1,5-bis-phosphate (RBPC) 14CO2 fixation rate was measured at four different temperatures, 5°, 15°, 25° and 35° C, in three populations of Espeletia schultzii at different altitudes, 3100, 3550 and 4200 ma.s.l. The fixation rate increased with temperature increase in the populations studied. The population...


    pub_type: 杂志文章


    authors: Castrillo M

    更新日期:1995-02-01 00:00:00

  • Physical background of the development of oxygen depletion in ice-covered lakes.

    abstract::The effect of the heat interaction between a water column and sediments on the formation, development, and duration of existence of anaerobic zones in ice-covered lakes is estimated based on observational data from five frozen lakes located in northwestern Russia and North America. A simple one-dimensional model that ...


    pub_type: 杂志文章


    authors: Golosov S,Maher OA,Schipunova E,Terzhevik A,Zdorovennova G,Kirillin G

    更新日期:2007-03-01 00:00:00

  • Differential stoichiometric homeostasis and growth in two native and two invasive C3 grasses.

    abstract::Global changes interact with plant invasions by differentially impacting native and invasive species. For example, invasive plants often benefit from eutrophication to a greater degree than native plants. While this is well-documented, a broad, trait-based explanation for this phenomenon is lacking. Recent research sh...


    pub_type: 杂志文章


    authors: Harvey JT,Leffler AJ

    更新日期:2020-08-01 00:00:00

  • Responses of Acilius sulcatus (Coleoptera: Dytiscidae) to chemical cues from perch (Perca fluviatilis).

    abstract::In this study we tested the hypothesis that the presence of chemical stimuli from a hungry predator would initiate anti-predator responses, while stimuli from a satiated predator would not. We used chemical stimuli released from starved perch (Perca fluviatilis) and from satiated perch (predator). As prey we used adul...


    pub_type: 杂志文章


    authors: Åbjörnsson K,Wagner BM,Axelsson A,Bjerselius R,Olsén KH

    更新日期:1997-07-01 00:00:00

  • Trade-offs between vegetative growth and acorn production in Quercus lobata during a mast year: the relevance of crop size and hierarchical level within the canopy.

    abstract::The concept of trade-offs between reproduction and other fitness traits is a fundamental principle of life history theory. For many plant species, the cost of sexual reproduction affects vegetative growth in years of high seed production through the allocation of resources to reproduction at different hierarchical lev...


    pub_type: 杂志文章


    authors: Sánchez-Humanes B,Sork VL,Espelta JM

    更新日期:2011-05-01 00:00:00

  • The effect of sex, age, and location on carnivory in Utah black bears (Ursus americanus).

    abstract::Ungulates are important to the diet of bears because they are high in protein, and the level of dietary protein strongly influences bear size. The size a bear obtains as an adult influences important life history characteristics, such as age of reproduction and reproductive success; therefore, it is important to know ...


    pub_type: 杂志文章


    authors: Hatch KA,Kester KA,Auger J,Roeder BL,Bunnell K,Black HL

    更新日期:2019-04-01 00:00:00

  • Early outflying and late homeflying in the Indian pygmy bat under natural conditions.

    abstract::The outflying and homeflying activity pattern of a colony of the Indian pygmy bat Pipistrellus mimus occupying a tunnel was studied under natural conditions. Before leaving the tunnel for foraging, the bats made circling flights outside to sample the environmental light conditions. The onset and end of activity was re...


    pub_type: 杂志文章


    authors: Isaac SS,Marimuthu G

    更新日期:1993-12-01 00:00:00

  • Relationships between the synthesis and breakdown of protein, dietary absorption and turnovers of nitrogen and carbon in the blue mussel, Mytilus edulis L.

    abstract::Seasonal and nutritionally induced changes of whole body protein metabolism have been studied in 45 to 57 mm shell-length Mytilus edulis from Whitsand Bay, southwest England. The subtraction of measured net protein balances from coincident rates of protein synthesis, determined in vivo by supplying 15N-labelled alga a...


    pub_type: 杂志文章


    authors: Hawkins AJ

    更新日期:1985-04-01 00:00:00

  • Numerical responses by populations of red fox and mountain hare during an outbreak of sarcoptic mange.

    abstract::During a severe outbreak of sarcoptic mange (Sarcoptes scabiei vulpes) starting among red foxes (Vulpes vulpes) in Sweden in the 1970s, we studied: 1) the establishment and spread of the disease in northernmost Sweden (by inquiries), and 2) the 1970-84 bag records for foxes and mountain hares (Lepus timidus) (an alter...


    pub_type: 杂志文章


    authors: Danell K,Hörnfeldt B

    更新日期:1987-10-01 00:00:00

  • Does lipid-correction introduce biases into isotopic mixing models? Implications for diet reconstruction studies.

    abstract::Carbon isotopes are commonly used in trophic ecology to estimate consumer diet composition. This estimation is complicated by the fact that lipids exhibit a more depleted carbon signature (δ13C) than other macromolecules, and are often found at different concentrations among individual organisms. Some researchers argu...


    pub_type: 杂志文章,评审


    authors: Arostegui MC,Schindler DE,Holtgrieve GW

    更新日期:2019-12-01 00:00:00

  • Field water relations of three temperate vines.

    abstract::A two year comparative field water relations study was conducted in central Maryland on three sympatric temperate lianas, Lonicera japonica, Vitis vulpina and Parthenocissus quinquefolia. Seasonal physiological activity was longer by approximately 9 weeks in the evergreen L. japonica, while peak rates of stem elongati...


    pub_type: 杂志文章


    authors: Bell DJ,Forseth IN,Teramura AH

    更新日期:1988-01-01 00:00:00

  • Young clonal and non-clonal herbs differ in growth strategy but not in aboveground biomass compensation after disturbance.

    abstract::Clonal plants have more traits enabling individual persistence (larger belowground storage of buds and assimilates), whereas non-clonal plants have more traits enabling population persistence (a higher reliance on regeneration from seeds). This difference presumably makes those groups respond differently to disturbanc...


    pub_type: 杂志文章


    authors: Martínková J,Klimeš A,Klimešová J

    更新日期:2020-08-01 00:00:00

  • The pervalence of caecal threadworms (Trichostrongylus tenuis) in red grouse (Lagopus lagopus scoticus).

    abstract::Ninety percent of wild red grouse examined carried threadworms in their intenstinal caeca. Old birds had 30 times as many worms as young birds. Some infections were as high as 30,000 worms. The occurrence of worms in old grouse conformed to the negative binomial distribution. ...


    pub_type: 杂志文章


    authors: Wilson GR

    更新日期:1983-05-01 00:00:00

  • Carbon availability controls the growth of detritivores (Lumbricidae) and their effect on nitrogen mineralization.

    abstract::Activity of soil decomposer microorganisms is generally limited by carbon availability, but factors controlling saprophagous soil animals remain largely unknown. In contrast to microorganisms, animals are unable to exploit mineral nutrient pools. Therefore, it has been suggested that soil animals, and earthworms in pa...


    pub_type: 杂志文章


    authors: Tiunov AV,Scheu S

    更新日期:2004-01-01 00:00:00

  • Dispersal ability and relative abundance of Boeckella and Calamoecia (Copepoda: Calanoida) in Australian and New Zealand waters.

    abstract::Two calanoid copepod genera, Boeckella and Calamoecia have broadly similar geographic distributions in Australia but Boeckella is more common than Calamoecia. A field survey and literature search indicate that Boeckella is usually the first calanoid to colonize newly formed bodies of water, and Boeckella is more commo...


    pub_type: 杂志文章


    authors: Maly EJ

    更新日期:1984-05-01 00:00:00

  • A comparative study of floral and electrophoretic variation with life history variation in Limnanthes alba (Limnanthaceae).

    abstract::Plants derived from ten representative Limnanthes alba populations in Northern California, grown in a common environment, showed significant among-population genetic variation of certain floral and life history characters. Variation of these two sets of characters also correlated with the geographic distribution of po...


    pub_type: 杂志文章


    authors: Ritland K,Jain S

    更新日期:1984-08-01 00:00:00

  • Nested bird and micro-habitat assemblages in a peatland archipelago.

    abstract::Biotic assemblages of insular habitats are nested when poor assemblages are subsets of richer ones. Nestedness of species assemblages is frequent and may result from selective extinction or frequent colonization in insular habitats. It may also be created by a nested distribution of habitats among islands or by sampli...


    pub_type: 杂志文章


    authors: Calmé S,Desrochers A

    更新日期:1999-03-01 00:00:00

  • Seed supply limits seedling recruitment of Eucalyptus miniata: interactions between seed predation by ants and fire in the Australian seasonal tropics.

    abstract::Seed predation can cause substantial seed losses and influence plant population dynamics, but the impact depends on the extent to which populations are limited by seed availability or favorable microsites for recruitment. Harvester ants are the dominant post-dispersal seed predators in Australia's tropical savannas, a...


    pub_type: 杂志文章


    authors: Setterfield SA,Andersen AN

    更新日期:2018-04-01 00:00:00

  • The influence of environmental factors on dormancy and duration of egg development in Metrioptera roeseli (Orthoptera: Tettigoniidae).

    abstract::Developing eggs of Metrioptera roeseli HGB. have an obligate "embryonic" diapause in stage 23 and a facultative "initial" diapause in stage 4. Initial diapause is lacking when the ovipositing females are kept at long day photoperiod (LD 16/8), but is induced at LD 14/10 and LD 8/16. When natural light conditions are g...


    pub_type: 杂志文章


    authors: Ingrisch S

    更新日期:1984-02-01 00:00:00

  • A mechanism of expansion: Arctic deciduous shrubs capitalize on warming-induced nutrient availability.

    abstract::Warming-induced nutrient enrichment in the Arctic may lead to shifts in leaf-level physiological properties and processes with potential consequences for plant community dynamics and ecosystem function. To explore the physiological responses of Arctic tundra vegetation to increasing nutrient availability, we examined ...


    pub_type: 杂志文章


    authors: Prager CM,Boelman NT,Eitel JUH,Gersony JT,Greaves HE,Heskel MA,Magney TS,Menge DNL,Naeem S,Shen C,Vierling LA,Griffin KL

    更新日期:2020-03-01 00:00:00

  • Impacts of invading N2-fixing Acacia species on patterns of nutrient cycling in two Cape ecosystems: evidence from soil incubation studies and 15N natural abundance values.

    abstract::This study examines the impacts of woody, N2-fixing invasive Acacia spp. on the patterns of nutrient cycling in two invaded ecosystems of differing nutrient status in the Cape floristic region. Patterns of soil nutrient mineralization were measured by a field incubation method while the significance of the fixation pr...


    pub_type: 杂志文章


    authors: Stock WD,Wienand KT,Baker AC

    更新日期:1995-03-01 00:00:00

  • Temporal and spatial variation of larval parasitism in non-outbreaking populations of a folivorous moth.

    abstract::In order to assess the role of parasitoids in the regulation of non-outbreaking populations of Epirrita autumnata, a geometrid lepidopteran with outbreaking populations in northern Europe, we examined the temporal and spatial variation of larval parasitism in southwestern Finland during 6 successive years. The study w...


    pub_type: 杂志文章


    authors: Teder T,Tanhuanpää M,Ruohomäki K,Kaitaniemi P,Henriksson J

    更新日期:2000-06-01 00:00:00

  • The role of drought- and disturbance-mediated competition in shaping community responses to varied environments.

    abstract::By altering the strength of intra- and interspecific competition, droughts may reshape plant communities. Furthermore, species may respond differently to drought when other influences, such as herbivory, are considered. To explore this relationship, we conducted a greenhouse experiment measuring responses to inter- an...


    pub_type: 杂志文章


    authors: Napier JD,Mordecai EA,Heckman RW

    更新日期:2016-06-01 00:00:00

  • Levels of antioxidants in rural and urban birds and their consequences.

    abstract::Numerous animals have successfully invaded urban habitats, although the factors associated with invasion success remain poorly understood. Urban areas are characterized by warmer microclimates, higher levels of primary productivity, longer breeding seasons and higher levels of pollutants. All these factors should caus...


    pub_type: 杂志文章


    authors: Møller AP,Erritzøe J,Karadas F

    更新日期:2010-05-01 00:00:00

  • Dispersal, distribution, patch network and metapopulation dynamics of the dingy skipper butterfly (Erynnis tages).

    abstract::Two general approaches have usually been taken towards understanding the distributions and dynamics of localised species in heterogeneous landscapes, namely habitat characterisation and metapopulation dynamics. We show how habitat and metapopulation dynamics interact to generate a highly localised distribution of a bu...


    pub_type: 杂志文章


    authors: Gutiérrez D,Thomas CD,León-Cortés JL

    更新日期:1999-12-01 00:00:00

  • Are geckos useful bioindicators of air pollution?

    abstract::The response of an Australian arid-zone gecko community to sulphur dioxide and salt spray from a mine and industrial site was investigated from 1992 to 1995. Geckos were abundant and fecund at control sites in chenopod shrubland and annual capture rates were strongly influenced by minimum night temperatures. Capture r...


    pub_type: 杂志文章


    authors: Read JL

    更新日期:1998-04-01 00:00:00

  • Quantifying the response of free-ranging mammalian herbivores to the interplay between plant defense and nutrient concentrations.

    abstract::While trying to achieve their nutritional requirements, foraging herbivores face the costs of plant defenses, such as toxins. Teasing apart the costs and benefits of various chemical constituents in plants is difficult because their chemical defenses and nutrient concentrations often co-vary. We used an approach deriv...


    pub_type: 杂志文章


    authors: Bedoya-Pérez MA,Issa DD,Banks PB,McArthur C

    更新日期:2014-08-01 00:00:00