journal
MENU ▼
Read by QxMD icon Read
search

Ecological Applications: a Publication of the Ecological Society of America

journal
https://www.readbyqxmd.com/read/28727205/drivers-of-woody-canopy-water-content-responses-to-drought-in-a-mediterranean-type-ecosystem
#1
Tarin Paz-Kagan, Gregory P Asner
Severe droughts increase physiological stress in woody plant species, which can lead to mortality, fundamentally altering the composition, structure, and biogeography of forests in many regions. Little is known, however, about the factors determining the physiological response of woody plants to drought at landscape scales. Our objective was to understand woody plant species responses to ongoing changes in climate, using remotely sensed canopy water content (CWC) as an indicator of plant physiological and phenological status...
July 20, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28718204/detrital-shadows-estuarine-food-web-connectivity-depends-on-fluvial-influence-and-consumer-feeding-mode
#2
Emily Howe, Charles A Simenstad, Andrea Ogston
We measured the influence of landscape setting on estuarine food web connectivity in five macrotidal Pacific Northwest estuaries across a gradient of freshwater influence. We used stable isotopes (δ(13) C, δ(15) N, δ(34) S) in combination with a Bayesian mixing model to trace primary producer contributions to suspension- and deposit-feeding bivalve consumers (Mytilus trossulus and Macoma nasuta) transplanted into three estuarine vegetation zones: emergent marsh, mudflat, Japanese eelgrass (Zostera japonica), and native eelgrass (Zostera marina)...
July 17, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28718202/patterns-of-mortality-in-a-montane-mixed-conifer-forest-in-san-diego-county-california
#3
Mary Pyott Freeman, Douglas A Stow, Li An
We examine spatial patterns of conifer tree mortality and their changes over time for the montane mixed-conifer forests of San Diego County. These forest areas have recently experienced extensive tree mortality due to multiple factors. A spatial contextual image processing approach was utilized with high spatial resolution digital airborne imagery to map dead trees for the years 1997, 2000, 2002, and 2005 for three study areas: Palomar, Volcan, and Laguna mountains. Plot-based fieldwork was conducted to further assess mortality patterns...
July 17, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28718193/metacommunity-theory-meets-restoration-isolation-may-mediate-how-ecological-communities-respond-to-stream-restoration
#4
Christopher M Swan, Bryan L Brown
An often-cited benefit of river restoration is an increase in biodiversity or shift in composition to more desirable taxa. Yet, hard manipulations of habitat structure often fail to elicit a significant response in terms of biodiversity patterns. In contrast to conventional wisdom, the dispersal of organisms may have as large an influence on biodiversity patterns as environmental conditions. This influence of dispersal may be particularly influential in river networks which are linear branching, or dendritic, and thus constrain most dispersal to the river corridor...
July 17, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28692788/watershed-versus-within-lake-drivers-of-nitrogen-phosphorus-dynamics-in-shallow-lakes
#5
Luke J Ginger, Kyle D Zimmer, Brian R Herwig, Mark A Hanson, William O Hobbs, Gaston E Small, James B Cotner
Research on lake eutrophication often identifies variables affecting amounts of phosphorus (P) and nitrogen (N) in lakes, but understanding factors influencing N:P ratios is important given its influence on species composition and toxin production by cyanobacteria. We sampled 80 shallow lakes in Minnesota (USA) for three years to assess effects of watershed size, proportion of watershed as both row crop and natural area, fish biomass, and lake alternative state (turbid versus clear) on total N: total P (TN:TP), ammonium, total dissolved phosphorus (TDP), and seston stoichiometry...
July 10, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28681951/natural-succession-on-abandoned-cropland-effectively-decreases-the-soil-erodibility-and-improves-the-fungal-diversity
#6
Chao Zhang, Guobin Liu, Zilin Song, Dong Qu, Linchuan Fang, Lei Deng
Changes in plants and soils during natural succession have been evaluated, but little is known about the effects of succession on the activities of soil microbes and their interactions with soil erodibility. We conducted a field study on the Chinese Loess Plateau, typical of this semiarid area, to determine the effect of secondary succession on the stability of soil structure against erosion and on the composition of soil fungal communities. Characteristics of plant, soil, and fungal communities were assessed across a 30-year chronosequence of grassland developed from abandoned cropland...
July 6, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28675670/predicting-the-abundance-of-forest-types-across-the-eastern-u-s-through-inverse-modelling-of-tree-demography
#7
Mark C Vanderwel, Danaë M A Rozendaal, Margaret E K Evans
Global environmental change is expected to induce widespread changes in the geographic distribution and biomass of forest communities. Impacts have been projected from both empirical (statistical) and mechanistic (physiology-based) modelling approaches, but there remains an important gap in accurately predicting abundance across species' ranges from spatial variation in individual-level demographic processes. We address this issue by using a cohort-based forest dynamics model (CAIN) to predict spatial variation in the abundance of six plant functional types (PFTs) across the eastern U...
July 4, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28675581/understanding-the-demographic-drivers-of-realized-population-growth-rates
#8
David N Koons, Todd W Arnold, Michael Schaub
Identifying the demographic parameters (e.g., reproduction, survival, dispersal) that most influence population dynamics can increase conservation effectiveness and enhance ecological understanding. Life table response experiments (LTRE) aim to decompose the effects of change in parameters on past demographic outcomes (e.g., population growth rates). But the vast majority of LTREs and other retrospective population analyses have focused on decomposing asymptotic population growth rates, which do not account for the dynamic interplay between population structure and vital rates that shape realized population growth rates (λt = Nt+1 /Nt ) in time-varying environments...
July 4, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28675580/impact-of-disease-on-the-survival-of-three-commercially-fished-species
#9
John M Hoenig, Maya L Groner, Matthew W Smith, Wolfgang K Vogelbein, David M Taylor, Donald F Landers, John Swenarton, David T Gauthier, Philip Sadler, Mark Matsche, Ashley Haines, Hamish J Small, Roger Pradel, Remi Choquet, Jeffrey D Shields
Recent increases in emergent infectious diseases have raised concerns about the sustainability of some marine species. The complexity and expense of studying diseases in marine systems often dictate that conservation and management decisions are made without quantitative data on population-level impacts of disease. Mark-recapture is a powerful, underutilized, tool for calculating impacts of disease on population size and structure, even in the absence of etiological information. We applied logistic regression models to mark-recapture data to obtain estimates of disease-associated mortality rates in three commercially-important marine species: snow crab (Chionoecetes opilio) in Newfoundland, Canada, that experience sporadic epizootics of bitter crab disease; striped bass (Morone saxatilis) in the Chesapeake Bay, USA, that experience chronic dermal and visceral mycobacteriosis; and American lobster (Homarus americanus) in the Southern New England stock, that experience chronic epizootic shell disease...
July 4, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28667790/modeling-the-impacts-of-two-age-related-portfolio-effects-on-recruitment-variability-with-and-without-a-marine-reserve
#10
Carey R McGilliard, André E Punt, Ray Hilborn, Tim Essington
Many rockfish species are long-lived and thought to be susceptible to being overfished. Hypotheses about the importance of older female rockfish to population persistence have led to arguments that marine reserves are needed to ensure the sustainability of rockfish populations. However, the implications of these hypotheses for rockfish population dynamics are still unclear. We modeled two mechanisms by which reducing the proportion of older fish in a population has been hypothesized to influence sustainability, and explored whether these mechanisms influenced mean population dynamics and recruitment variability...
July 1, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28660670/defaunation-and-habitat-disturbance-interact-synergistically-to-alter-seedling-recruitment
#11
Alys Granados, Jedediah F Brodie, Henry Bernard, Michael J O'Brien
Vertebrate granivores destroy plant seeds, but whether animal-induced seed mortality alters plant recruitment varies with habitat context, seed traits, and among granivore species. An incomplete understanding of seed predation makes it difficult to predict how widespread extirpations of vertebrate granivores in tropical forests might affect tree communities, especially in the face of habitat disturbance. Many tropical forests are simultaneously affected by animal loss as well as habitat disturbance, but the consequences of each for forest regeneration are often studied separately or additively, and usually on a single plant demographic stage...
June 29, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28653471/experimental-warming-alters-migratory-caribou-forage-quality
#12
Tara J Zamin, Steeve D Côté, Jean-Pierre Tremblay, Paul Grogan
Global declines in caribou and reindeer (Rangifer) populations have drawn attention to the myriad of stressors that these arctic and boreal forest herbivores currently face. Arctic warming has resulted in increased tundra shrub growth and therefore Rangifer forage quantity. However, its effects on forage quality have not yet been addressed although they may be critical to Rangifer body condition and fecundity. We investigated the impact of summer warming on the quality of forage available to the Bathurst caribou herd using experimental greenhouses (n=5) located in mesic birch hummock tundra in the central Canadian Low Arctic...
June 27, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28653410/breeding-density-fine-scale-tracking-and-large-scale-modeling-reveal-the-regional-distribution-of-four-seabird-species
#13
Ewan D Wakefield, Ellie Owen, Julia Baer, Matthew J Carroll, Francis Daunt, Stephen G Dodd, Jonathan A Green, Tim Guilford, Roddy A Mavor, Peter I Miller, Mark A Newell, Stephen F Newton, Gail S Robertson, Akiko Shoji, Louise M Soanes, Stephen C Votier, Sarah Wanless, Mark Bolton
Population-level estimates of species' distributions can reveal fundamental ecological processes and facilitate conservation. However, these may be difficult to obtain for mobile species, especially colonial central-place foragers (CCPFs; e.g. bats, corvids, social insects), because it is often impractical to determine the provenance of individuals observed beyond breeding sites. Moreover, some CCPFs, especially in the marine realm (e.g. pinnipeds, turtles and seabirds) are difficult to observe because they range 10s to 10,000s km from their colonies...
June 27, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28646611/prediction-in-ecology-a-first-principles-framework
#14
Michael C Dietze
Quantitative predictions are ubiquitous in ecology, yet there is limited discussion on the nature of prediction in this field. Herein I derive a general quantitative framework for analyzing and partitioning the sources of uncertainty that control predictability. The implications of this framework are assessed conceptually and linked to classic questions in ecology, such as the relative importance of endogenous (density dependent) versus exogenous factors, stability versus drift, and the spatial scaling of processes...
June 24, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28644579/pairing-field-methods-to-improve-inference-in-wildlife-surveys-while-accommodating-detection-covariance
#15
John Clare, Shawn T McKinney, John E DePue, Cynthia S Loftin
It is common to use multiple field sampling methods when implementing wildlife surveys to compare method efficacy or cost-efficiency, integrate distinct pieces of information provided by separate methods, or evaluate method-specific biases and misclassification error. Existing models that combine information from multiple field methods or sampling devices permit rigorous comparison of method-specific detection parameters, enable estimation of additional parameters such as false-positive detection probability, and improve occurrence or abundance estimates, but with the assumption that the separate sampling methods produce detections independently of one another...
June 23, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28644577/evidence-of-fuels-management-and-fire-weather-influencing-fire-severity-in-an-extreme-fire-event
#16
Jamie M Lydersen, Brandon M Collins, Matthew L Brooks, John R Matchett, Kristen L Shive, Nicholas A Povak, Van R Kane, Douglas F Smith
Following changes in vegetation structure and pattern, along with a changing climate, large wildfire incidence has increased in forests throughout the western U.S. Given this increase there is great interest in whether fuels treatments and previous wildfire can alter fire severity patterns in large wildfires. We assessed the relative influence of previous fuels treatments (including wildfire), fire weather, vegetation and water balance on fire severity in the Rim Fire of 2013. We did this at three different spatial scales to investigate whether the influences on fire severity changed across scales...
June 23, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28636273/long-term-belowground-effects-of-grassland-management-the-key-role-of-liming
#17
Jemma Heyburn, Paul McKenzie, Michael J Crawley, Dario A Fornara
The functioning of human-managed grassland ecosystems strongly depends on how common management practices will affect grassland 'belowground compartment' including soil biogeochemistry and plant roots. Key questions remain about how animal grazing, liming (e.g. the addition of CaCO3 to soils), and nutrient fertilization might affect, in the long-term, soil nutrient cycling and multiple root traits. Here we focus on a mesotrophic grassland located in Berkshire, UK, where contrasting levels of rabbit grazing, liming and different inorganic fertilizers have been applied since 1991...
June 21, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28618118/response-to-rebutting-the-inclined-analyses-on-the-cost-effectiveness-and-feasibility-of-coral-reef-restoration
#18
Elisa Bayraktarov, Megan I Saunders, Peter J Mumby, Hugh P Possingham, Sabah Abdullah, Catherine E Lovelock
Reaching conservation goals critically depends on smart decision-making to efficiently allocate a constrained budget between different on-ground actions leading to maximum net benefit for biodiversity and human well-being at highest probability of success and lowest cost for these actions (Possingham et al. 2001; Joseph et al. 2009; Game et al. 2013). Without information on cost, feasibility and benefits of conservation, a prioritisation of marine coastal restoration interventions will be poor and money lost (Possingham et al...
June 15, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28618079/protected-areas-as-social-ecological-systems-perspectives-from-resilience-and-social-ecological-systems-theory
#19
Graeme S Cumming, Craig R Allen
Conservation biology and applied ecology increasingly recognise that natural resource management is both an outcome and a driver of social, economic, and ecological dynamics. Protected areas offer a fundamental approach to conserving ecosystems, but they are also social-ecological systems whose ecological management and sustainability are heavily influenced by people. This editorial, and the papers in the invited feature that it introduces, discuss three emerging themes in social-ecological systems approaches to understanding protected areas: (1) the resilience and sustainability of protected areas, including analyses of their internal dynamics, their effectiveness, and the resilience of the landscapes within which they occur; (2) the relevance of spatial context and scale for protected areas, including such factors as geographic connectivity, context, exchanges between protected areas and their surrounding landscapes, and scale dependency in the provision of ecosystem services; and (3) efforts to re-frame what protected areas are and how they both define and are defined by the relationships of people and nature...
June 15, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28600858/scale-dependent-effects-of-post-fire-canopy-cover-on-snowpack-depth-in-montane-coniferous-forests
#20
Jens T Stevens
Winter snowpack in dry montane regions provides a valuable ecosystem service by storing water into the growing season. Wildfire in coniferous montane forests has the potential to indirectly affect snowpack accumulation and ablation (mass loss) rates by reducing canopy cover, which reduces canopy interception of snow but also increases solar radiation and wind speed. These counteracting effects create uncertainty regarding the canopy conditions that maximize post-fire snowpack duration, which is of concern as montane regions across the western United States experience increasingly warm, dry winters with below-average snowpack...
June 9, 2017: Ecological Applications: a Publication of the Ecological Society of America
journal
journal
34309
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"