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https://www.readbyqxmd.com/read/27908625/a-novel-integrated-modelling-framework-to-assess-the-impacts-of-climate-and-socio-economic-drivers-on-land-use-and-water-quality
#1
Matthias Zessner, Martin Schönhart, Juraj Parajka, Helene Trautvetter, Hermine Mitter, Mathias Kirchner, Gerold Hepp, Alfred Paul Blaschke, Birgit Strenn, Erwin Schmid
Changes in climatic conditions will directly affect the quality and quantity of water resources. Further on, they will affect them indirectly through adaptation in land use which ultimately influences diffuse nutrient emissions to rivers and therefore potentially the compliance with good ecological status according to the EU Water Framework Directive (WFD). We present an integrated impact modelling framework (IIMF) to track and quantify direct and indirect pollution impacts along policy-economy-climate-agriculture-water interfaces...
November 28, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27907264/the-legacy-of-large-regime-shifts-in-shallow-lakes
#2
Joy M Ramstack Hobbs, William O Hobbs, Mark B Edlund, Kyle D Zimmer, Kevin M Theissen, Natalie Hoidal, Leah M Domine, Mark A Hanson, Brian R Herwig, James B Cotner
Ecological shifts in shallow lakes from clear-water macrophyte-dominated to turbid-water phytoplankton-dominated are generally thought of as rapid short-term transitions. Diatom remains in sediment records from shallow lakes in the Prairie Pothole Region of North America provide new evidence that the long-term ecological stability of these lakes is defined by the legacy of large regime shifts. We examine the modern and historical stability of 11 shallow lakes. Currently, four of the lakes are in a clear-water state, three are consistently turbid-water, and four have been observed to change state from year to year (transitional)...
December 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27907252/residential-yards-as-designer-ecosystems-effects-of-yard%C3%A2-management-on-land-snail-species-composition
#3
Elizabeth A Bergey, Laura L Figueroa
Residential yards comprise the majority of green space in urban landscapes, yet are an understudied system because of access issues and because yards may be considered biologically depauperate. Yards are purposely created and managed and, hence, qualify as designer ecosystems, a term borrowed from restoration ecology. We investigated whether yard management (watering regime, mulching, and chemical use) or dog presence affected land snail assemblage composition and described the pattern of native vs. nonnative species among yards...
December 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27894018/managing-mosquito-spaces-citizen-self-governance-of-disease-vectors-in-a-desert-landscape
#4
Nicolena vonHedemann, Paul Robbins, Melinda K Butterworth, Katheryn Landau, Cory W Morin
Public health agencies' strategies to control disease vectors have increasingly included "soft" mosquito management programs that depend on citizen education and changing homeowner behaviors. In an effort to understand public responses to such campaigns, this research assesses the case of Tucson, Arizona, where West Nile virus presents a serious health risk and where management efforts have focused on public responsibility for mosquito control. Using surveys, interviews, and focus groups, we conclude that citizens have internalized responsibilities for mosquito management but also expect public management of parks and waterways while tending to reject the state's interference with privately owned parcels...
November 25, 2016: Health & Place
https://www.readbyqxmd.com/read/27891217/models-of-eucalypt-phenology-predict-bat-population-flux
#5
John R Giles, Raina K Plowright, Peggy Eby, Alison J Peel, Hamish McCallum
Fruit bats (Pteropodidae) have received increased attention after the recent emergence of notable viral pathogens of bat origin. Their vagility hinders data collection on abundance and distribution, which constrains modeling efforts and our understanding of bat ecology, viral dynamics, and spillover. We addressed this knowledge gap with models and data on the occurrence and abundance of nectarivorous fruit bat populations at 3 day roosts in southeast Queensland. We used environmental drivers of nectar production as predictors and explored relationships between bat abundance and virus spillover...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/27888579/non-target-effects-of-fungicides-on-nectar-inhabiting-fungi-of-almond-flowers
#6
Robert N Schaeffer, Rachel L Vannette, Claire Brittain, Neal M Williams, Tadashi Fukami
Nectar mediates interactions between plants and pollinators in natural and agricultural systems. Specialized microorganisms are common nectar inhabitants, and potentially important mediators of plant-pollinator interactions. However, their diversity and role in mediating pollination services in agricultural systems are poorly characterized. Moreover, agrochemicals are commonly applied to minimize crop damage, but may present ecological consequences for non-target organisms. Assessment of ecological risk has tended to focus on beneficial macroorganisms such as pollinators, with less attention paid to microorganisms...
November 26, 2016: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/27886423/an-approach-for-identifying-cryptic-barriers-to-gene-flow-that-limit-species-geographic-ranges
#7
Steven J Micheletti, Andrew Storfer
Species' geographic range limits are most often not demarcated by obvious dispersal barriers. Poor quality habitat at the edge of a species' range can prevent range expansion by preventing outward migration or through reducing adaptive potential resulting from decreased genetic diversity. We identified habitat variables that constrain gene flow across the entire geographic range of an endemic salamander (Ambystoma barbouri) in the eastern United States, and we tested whether increased resistance resulting from these variables provides cryptic dispersal barriers at the range edges...
November 25, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27886331/effect-of-fragmentation-on-the-natural-genetic-diversity-of-theobroma-speciosum-willd-ex-spreng-populations
#8
T L Varella, A A B Rossi, J F E Dardengo, G F Silveira, M D A Souza, M L S Carvalho
Forest fragmentation reduces the effective size of natural populations, isolates individuals in the landscape, and, consequently, changes species' mating systems by increasing the degree of relatedness between individuals and inbreeding. Investigating the impact of habitat degradation on forest fragments helps to assess the genetic and ecological consequences of these changes, and allows the development of effective and sustainable conservation strategies to manage the genetic resources of species living in degraded landscapes...
November 21, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27884521/the-consequences-of-landscape-change-on-fishing-strategies
#9
Tracy Van Holt, Beatrice Crona, Jeffrey C Johnson, Stefan Gelcich
We show how land-use change can affect fisher-harvesting behavior. We test whether fisher harvesting behavior can be predicted by landscape change patterns at local (~200km) and regional (~1200km) levels. Our data suggest that fishers harvesting in areas near tree plantations reduced benthic-invertebrate harvests in favor of demersal and pelagic finfish that are usually located further offshore. Fishers' management areas, which were near tree plantations, had higher chlorophyll-a values, and contained shellfish with more endobionts...
November 21, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27881142/ethnoagroforestry-integration-of-biocultural-diversity-for-food-sovereignty-in-mexico
#10
Ana Isabel Moreno-Calles, Alejandro Casas, Alexis Daniela Rivero-Romero, Yessica Angélica Romero-Bautista, Selene Rangel-Landa, Roberto Alexander Fisher-Ortíz, Fernando Alvarado-Ramos, Mariana Vallejo-Ramos, Dídac Santos-Fita
BACKGROUND: Documenting the spectrum of ecosystem management, the roles of forestry and agricultural biodiversity, TEK, and human culture for food sovereignty, are all priority challenges for contemporary science and society. Ethnoagroforestry is a research approach that provides a theoretical framework integrating socio-ecological disciplines and TEK. We analyze in this study general types of Agroforestry Systems of México, in which peasants, small agriculturalist, and indigenous people are the main drivers of AFS and planning of landscape diversity use...
November 23, 2016: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/27880787/seasonal-and-spatial-environmental-influence-on-opisthorchis-viverrini-intermediate-hosts-abundance-and-distribution-insights-on-transmission-dynamics-and-sustainable-control
#11
Christina Sunyoung Kim, Pierre Echaubard, Apiporn Suwannatrai, Sasithorn Kaewkes, Bruce A Wilcox, Banchob Sripa
BACKGROUND: Opisthorchis viverrini (Ov) is a complex-life-cycle trematode affecting 10 million people in SEA (Southeast Asia). Human infection occurs when infected cyprinid fish are consumed raw or undercooked. Ov requires three hosts and presents two free-living parasitic stages. As a consequence Ov transmission and infection in intermediate and human hosts are strongly mediated by environmental factors and understanding how environmental variability influences intermediate host abundance is critical...
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27878540/some-years-you-live-like-a-coyote-gendered-practices-of-cultural-resilience-in-working-rangeland-landscapes
#12
Hailey Wilmer, María E Fernández-Giménez
Rangeland researchers are increasingly interested in understanding working rangelands as integrated social-ecological systems and in investigating the contexts of human decision-making processes that support system resilience. U.S. public lands ranchers are key partners in rangeland conservation, but the role of women in building system resilience has not yet been explored. We conducted life-history interviews with 19 ranching women in the Southwestern United States. We analyzed the resulting transcripts by identifying contradictions between women's material practices and traditional discourses in the ranching livelihood that illustrated women's efforts to maintain both a way of life and a living during social and ecological change...
December 2016: Ambio
https://www.readbyqxmd.com/read/27878085/stable-isotope-based-trophic-structure-of-pelagic-fish-and-jellyfish-across-natural-and-anthropogenic-landscape-gradients-in-a-fjord-estuary
#13
Sean M Naman, Correigh M Greene, Casimir A Rice, Joshua Chamberlin, Letitia Conway-Cranos, Jeffery R Cordell, Jason E Hall, Linda D Rhodes
Identifying causes of structural ecosystem shifts often requires understanding trophic structure, an important determinant of energy flow in ecological communities. In coastal pelagic ecosystems worldwide, increasing jellyfish (Cnidaria and Ctenophora) at the expense of small fish has been linked to anthropogenic alteration of basal trophic pathways. However, this hypothesis remains untested in part because baseline description of fish-jellyfish trophic dynamics, and the environmental features that influence them are lacking...
November 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/27876805/landscape-genetics-informs-mesohabitat-preference-and-conservation-priorities-for-a-surrogate-indicator-species-in-a-highly-fragmented-river-system
#14
J Lean, M P Hammer, P J Unmack, M Adams, L B Beheregaray
Poor dispersal species represent conservative benchmarks for biodiversity management because they provide insights into ecological processes influenced by habitat fragmentation that are less evident in more dispersive organisms. Here we used the poorly dispersive and threatened river blackfish (Gadopsis marmoratus) as a surrogate indicator system for assessing the effects of fragmentation in highly modified river basins and for prioritizing basin-wide management strategies. We combined individual, population and landscape-based approaches to analyze genetic variation in samples spanning the distribution of the species in Australia's Murray-Darling Basin, one of the world's most degraded freshwater systems...
November 23, 2016: Heredity
https://www.readbyqxmd.com/read/27876390/landscape-changes-traditional-ecological-knowledge-and-future-scenarios-in-the-alps-a-holistic-ecological-approach
#15
Clara Tattoni, Elena Ianni, Davide Geneletti, Paolo Zatelli, Marco Ciolli
In recent decades, a dramatic landscape change has occurred in the European alpine region: open areas have been naturally recolonized by forests as traditional agricultural and forest activities were reduced and reorganized. Land use changes (LUC) are generally measured through GIS and photo interpretation techniques, but despite many studies focused on this phenomenon and its effects on biodiversity and on the environment in general, there is a lack of information about the transformation of the human-environment connection...
November 19, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27873369/the-genetic-architecture-of-novel-trophic-specialists-higher-effect-sizes-are-associated-with-exceptional-oral-jaw-diversification-in-a-pupfish-adaptive-radiation
#16
Christopher H Martin, Priscilla A Erickson, Craig T Miller
The genetic architecture of adaptation is fundamental to understanding the mechanisms and constraints governing diversification. However, most case studies focus on loss of complex traits or parallel speciation in similar environments. It is still unclear how the genetic architecture of these local adaptive processes compares to the architecture of evolutionary transitions contributing to morphological and ecological novelty. Here we identify quantitative trait loci (QTL) between two trophic specialists in an excellent case study for examining the origins of ecological novelty: a sympatric radiation of pupfishes endemic to San Salvador Island, Bahamas containing a large-jawed scale-eater and a short-jawed molluscivore with a skeletal nasal protrusion...
November 22, 2016: Molecular Ecology
https://www.readbyqxmd.com/read/27873066/diverse-foraging-opportunities-drive-the-functional-response-of-local-and-landscape-scale-bear-predation-on-pacific-salmon
#17
Thomas P Quinn, Curry J Cunningham, Aaron J Wirsing
The relationship between prey abundance and predation is often examined in single habitat units or populations, but predators may occupy landscapes with diverse habitats and foraging opportunities. The vulnerability of prey within populations may depend on habitat features that hinder predation, and increased density of conspecifics in both the immediate vicinity and the broader landscape. We evaluated the relative effects of physical habitat, local, and neighborhood prey density on predation by brown bears on sockeye salmon in a suite of 27 streams using hierarchical Bayesian functional response models...
November 21, 2016: Oecologia
https://www.readbyqxmd.com/read/27865047/carbon-lost-and-carbon-gained-a-study-of-vegetation-and-carbon-tradeoffs-among-diverse-land-uses-in-the-phoenix-az
#18
Melissa R McHale, Sharon Hall, Anandamayee Majumdar, Nancy B Grimm
Human modification and management of urban landscapes drastically alters vegetation and soils, thereby altering carbon (C) storage and rates of net primary productivity (NPP). Complex social and ecological processes drive vegetation cover in cities, leading to heterogeneity in C dynamics depending on regional climate, land use, and land cover. Recent work has demonstrated homogenization in ecological processes within human-dominated landscapes (the urban convergence hypothesis) in soils and biotic communities...
November 19, 2016: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/27863902/prediction-and-prevention-of-parasitic-diseases-using-a-landscape-genomics-framework
#19
REVIEW
Philipp Schwabl, Martin S Llewellyn, Erin L Landguth, Björn Andersson, Uriel Kitron, Jaime A Costales, Sofía Ocaña, Mario J Grijalva
Substantial heterogeneity exists in the dispersal, distribution and transmission of parasitic species. Understanding and predicting how such features are governed by the ecological variation of landscape they inhabit is the central goal of spatial epidemiology. Genetic data can further inform functional connectivity among parasite, host and vector populations in a landscape. Gene flow correlates with the spread of epidemiologically relevant phenotypes among parasite and vector populations (e.g., virulence, drug and pesticide resistance), as well as invasion and re-invasion risk where parasite transmission is absent due to current or past intervention measures...
November 15, 2016: Trends in Parasitology
https://www.readbyqxmd.com/read/27862619/when-does-seed-limitation-matter-for-scaling-up-reforestation-from-patches-to-landscapes
#20
T Trevor Caughlin, Stephen Elliott, Jeremy W Lichstein
Restoring forest to hundreds of millions of hectares of degraded land has become a centerpiece of international plans to sequester carbon and conserve biodiversity. Forest landscape restoration will require scaling up ecological knowledge of secondary succession from small-scale field studies to predict forest recovery rates in heterogeneous landscapes. However, ecological field studies reveal widely divergent times to forest recovery, in part due to landscape features that are difficult to replicate in empirical studies...
December 2016: Ecological Applications: a Publication of the Ecological Society of America
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