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https://www.readbyqxmd.com/read/28936706/biodiversity-and-ecology-of-flower-associated-actinomycetes-in-different-flowering-stages-of-protea-repens
#1
Zander R Human, Casparus J Crous, Francois Roets, Stephanus N Venter, Michael J Wingfield, Z Wilhelm de Beer
Actinomycete bacteria have previously been reported from reproductive structures (infructescences) of Protea (sugarbush/suikerbos) species, a niche dominated by fungi in the genera Knoxdaviesia and Sporothrix. It is probable that these taxa have symbiotic interactions, but a lack of knowledge regarding their diversity and general ecology precludes their study. We determined the diversity of actinomycetes within Protea repens inflorescence buds, open inflorescences, young and mature infructescences, and leaf litter surrounding these trees...
September 21, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28932955/the-sustainable-arable-land-use-pattern-under-the-tradeoff-of-agricultural-production-economic-development-and-ecological-protection-an-analysis-of-dongting-lake-basin-china
#2
Guanyi Yin, Liming Liu, Xilong Jiang
To find a solution regarding sustainable arable land use pattern in the important grain-producing area during the rapid urbanization process, this study combined agricultural production, locational condition, and ecological protection to determine optimal arable land use. Dongting Lake basin, one of the major grain producing areas in China, was chosen as the study area. The analysis of land use transition, the calculation of arable land barycenter, the landscape indices of arable land patches, and the comprehensive evaluation of arable land quality(productivity, economic location, and ecological condition) were adopted in this study...
September 20, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28929015/the-landscape-of-fear-conceptual-framework-definition-and-review-of-current-applications-and-misuses
#3
Sonny S Bleicher
Landscapes of Fear (LOF), the spatially explicit distribution of perceived predation risk as seen by a population, is increasingly cited in ecological literature and has become a frequently used "buzz-word". With the increase in popularity, it became necessary to clarify the definition for the term, suggest boundaries and propose a common framework for its use. The LOF, as a progeny of the "ecology of fear" conceptual framework, defines fear as the strategic manifestation of the cost-benefit analysis of food and safety tradeoffs...
2017: PeerJ
https://www.readbyqxmd.com/read/28926153/comparative-and-population-genomics-landscape-of-phellinus-noxius-a-hypervariable-fungus-causing-root-rot-in-trees
#4
Chia-Lin Chung, Tracy J Lee, Mitsuteru Akiba, Hsin-Han Lee, Tzu-Hao Kuo, Dang Liu, Huei-Mien Ke, Toshiro Yokoi, Marylette B Roa, Meiyeh J Lu, Ya-Yun Chang, Pao-Jen Ann, Jyh-Nong Tsai, Chien-Yu Chen, Shean-Shong Tzean, Yuko Ota, Tsutomu Hattori, Norio Sahashi, Ruey-Fen Liou, Taisei Kikuchi, Isheng J Tsai
The order Hymenochaetales of white rot fungi contain some of the most aggressive wood decayers causing tree deaths around the world. Despite their ecological importance and the impact of diseases they cause, little is known about the evolution and transmission patterns of these pathogens. Here, we sequenced and undertook comparative genomics analyses of Hymenochaetales genomes using brown root rot fungus Phellinus noxius, wood-decomposing fungus Phellinus lamaensis, laminated root rot fungus Phellinus sulphurascens, and trunk pathogen Porodaedalea pini...
September 19, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28919954/immunocytological-analysis-of-meiotic-recombination-in-two-anole-lizards-squamata-dactyloidae
#5
Artem P Lisachov, Vladimir A Trifonov, Massimo Giovannotti, Malcolm A Ferguson-Smith, Pavel M Borodin
Although the evolutionary importance of meiotic recombination is not disputed, the significance of interspecies differences in the recombination rates and recombination landscapes remains under-appreciated. Recombination rates and distribution of chiasmata have been examined cytologically in many mammalian species, whereas data on other vertebrates are scarce. Immunolocalization of the protein of the synaptonemal complex (SYCP3), centromere proteins and the mismatch-repair protein MLH1 was used, which is associated with the most common type of recombination nodules, to analyze the pattern of meiotic recombination in the male of two species of iguanian lizards, Anolis carolinensis Voigt, 1832 and Deiroptyx coelestinus (Cope, 1862)...
2017: Comparative Cytogenetics
https://www.readbyqxmd.com/read/28918369/the-development-of-biodiversity-conservation-measures-in-china-s-hydro-projects-a-review
#6
REVIEW
Ruiqiao Bai, Xuehua Liu, Xiaofei Liu, Lanmei Liu, Jianping Wang, Sihui Liao, Annah Zhu, Zhouyuan Li
The hydropower capacity of China ranks first in the world and accounts for approximately 20% of the total energy production in the country. While hydropower has substantially contributed to meeting China's renewable energy targets and providing clean energy to rural areas, the development of hydropower in China has been met with significant controversy. Ecologically, hydro projects alter the landscape, with potential impacts to the country's aquatic biodiversity. Over the past four decades in China, various mainstream opinions and misunderstandings have been presented concerning how to alleviate the negative impacts of hydro projects on aquatic ecosystems...
September 14, 2017: Environment International
https://www.readbyqxmd.com/read/28915462/abundance-of-large-old-trees-in-wood-pastures-of-transylvania-romania
#7
Tibor Hartel, Jan Hanspach, Cosmin I Moga, Lucian Holban, Árpád Szapanyos, Réka Tamás, Csaba Hováth, Kinga-Olga Réti
Wood-pastures are special types of agroforestry systems that integrate trees with livestock grazing. Wood pastures can be hotspots for large old tree abundance and have exceptional natural values; but they are declining all over Europe. While presence of large old trees in wood-pastures can provide arguments for their maintenance, actual data on their distribution and abundance are sparse. Our study is the first to survey large old trees in Eastern Europe over such a large area. We surveyed 97 wood-pastures in Transylvania (Romania) in order to (i) provide a descriptive overview of the large old tree abundance; and (ii) to explore the environmental determinants of the abundance and persistence of large old trees in wood-pastures...
September 12, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28912508/use-of-anthropogenic-linear-features-by-two-medium-sized-carnivores-in-reserved-and-agricultural-landscapes
#8
Georgina E Andersen, Christopher N Johnson, Leon A Barmuta, Menna E Jones
Many carnivores are threatened by habitat loss and fragmentation. These changes create linear features and habitat edges that can facilitate foraging and/or travel. To understand the significance of anthropogenic linear features in the ecology of carnivores, fine-scaled studies are needed. We studied two medium-sized carnivores: the endangered Tasmanian devil (Sarcophilus harrisii) and the near threatened spotted-tailed quoll (Dasyurus maculatus), in a mixed landscape of conservation and agricultural land. Using GPS tracking, we investigated their use of intact habitat versus linear features such as roads, fences and the pasture/cover interface...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28904779/discriminating-patterns-and-drivers-of-multiscale-movement-in-herpetofauna-the-dynamic-and-changing-environment-of-the-mojave-desert-tortoise
#9
Giancarlo Sadoti, Miranda E Gray, Matthew L Farnsworth, Brett G Dickson
Changes to animal movement in response to human-induced changes to the environment are of growing concern in conservation. Most research on this problem has focused on terrestrial endotherms, but changes to herpetofaunal movement are also of concern given their limited dispersal abilities and specialized thermophysiological requirements. Animals in the desert region of the southwestern United States are faced with environmental alterations driven by development (e.g., solar energy facilities) and climate change...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28903868/predicting-farm-level-animal-populations-using-environmental-and-socioeconomic-variables
#10
Mary van Andel, Christopher Jewell, Joanna McKenzie, Tracey Hollings, Andrew Robinson, Mark Burgman, Paul Bingham, Tim Carpenter
Accurate information on the geographic distribution of domestic animal populations helps biosecurity authorities to efficiently prepare for and rapidly eradicate exotic diseases, such as Foot and Mouth Disease (FMD). Developing and maintaining sufficiently high-quality data resources is expensive and time consuming. Statistical modelling of population density and distribution has only begun to be applied to farm animal populations, although it is commonly used in wildlife ecology. We developed zero-inflated Poisson regression models in a Bayesian framework using environmental and socioeconomic variables to predict the counts of livestock units (LSUs) and of cattle on spatially referenced farm polygons in a commercially available New Zealand farm database, Agribase...
September 15, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28892868/assessing-the-feasibility-of-integrating-ecosystem-based-with-engineered-water-resource-governance-and-management-for-water-security-in-semi-arid-landscapes-a-case-study-in-the-banas-catchment-rajasthan-india
#11
Mark Everard, Om Prakash Sharma, Vinod Kumar Vishwakarma, Dharmendra Khandal, Yogesh K Sahu, Rahul Bhatnagar, Jitendra K Singh, Ritesh Kumar, Asghar Nawab, Amit Kumar, Vivek Kumar, Anil Kashyap, Deep Narayan Pandey, Adrian C Pinder
Much of the developing world and areas of the developed world suffer water vulnerability. Engineering solutions enable technically efficient extraction and diversion of water towards areas of demand but, without rebalancing resource regeneration, can generate multiple adverse ecological and human consequences. The Banas River, Rajasthan (India), has been extensively developed for water diversion, particularly from the Bisalpur Dam from which water is appropriated by powerful urban constituencies dispossessing local people...
September 7, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28892277/ungulates-increase-forest-plant-species-richness-to-the-benefit-of-non-forest-specialists
#12
Vincent Boulanger, Jean-Luc Dupouey, Frédéric Archaux, Vincent Badeau, Christophe Baltzinger, Richard Chevalier, Emmanuel Corcket, Yann Dumas, Françoise Forgeard, Anders Mårell, Pierre Montpied, Yoan Paillet, Jean-François Picard, Sonia Saïd, Erwin Ulrich
Large wild ungulates are a major biotic factor shaping plant communities. They influence species abundance and occurrence directly by herbivory and plant dispersal, or indirectly by modifying plant-plant interactions and through soil disturbance. In forest ecosystems, researchers' attention has been mainly focused on deer overabundance. Far less is known about the effects on understory plant dynamics and diversity of wild ungulates where their abundance is maintained at lower levels to mitigate impacts on tree regeneration...
September 11, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28892141/novel-insights-on-population-and-range-edge-dynamics-using-an-unparalleled-spatiotemporal-record-of-species-invasion
#13
Kristine Grayson, Derek M Johnson
Quantifying the complex spatial dynamics taking place at range edges is critical for understanding future distributions of species, yet very few systems have sufficient data or the spatial resolution to empirically test these dynamics. This paper reviews how data from a large-scale pest management program have provided important contributions to the fields of population dynamics and invasion biology. The invasion of gypsy moth (Lymantria dispar) is well-documented from its introduction near Boston, Massachusetts USA in 1869 to its current extent of over 900,000 km(2) in Eastern North America...
September 11, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28890848/urbanization-alters-communities-of-flying-arthropods-in-parks-and-gardens-of-a-medium-sized-city
#14
Edward Lagucki, Justin D Burdine, Kevin E McCluney
Urbanization transforms undeveloped landscapes into built environments, causing changes in communities and ecological processes. Flying arthropods play important roles in these processes as pollinators, decomposers, and predators, and can be important in structuring food webs. The goal of this study was to identify associations between urbanization and the composition of communities of flying (and floating) arthropods within gardens and parks in a medium-sized mesic city. We predicted that flying arthropod abundance and diversity would respond strongly to percent impervious surface and distance to city center, measurements of urbanization...
2017: PeerJ
https://www.readbyqxmd.com/read/28890665/trends-and-events-through-seven-centuries-the-history-of-a-wetland-landscape-in-the-czech-republic
#15
Péter Szabó, Andrea Gálová, Eva Jamrichová, Kateřina Šumberová, Jan Šipoš, Radim Hédl
Environmental change can be viewed as the combined result of long-term processes and singular events. While long-term trends appear to be readily available for observation (in the form of temporal comparisons or space-for-time substitution), it is more difficult to gain information on singular events in the past, although these can be equally significant in shaping ecosystems. We examined the past 700 years in the history of a lowland wetland landscape in the Czech Republic with the help of palaeoecological, ecological, landscape archaeological, and archival data...
February 2017: Regional Environmental Change
https://www.readbyqxmd.com/read/28886058/sparse-trees-and-shrubs-confers-a-high-biodiversity-to-pastures-case-study-on-spiders-from-transylvania
#16
Róbert Gallé, István Urák, Gallé-Szpisjak Nikolett, Tibor Hartel
The integration of food production and biodiversity conservation represents a key challenge for sustainability. Several studies suggest that even small structural elements in the landscape can make a substantial contribution to the overall biodiversity value of the agricultural landscapes. Pastures can have high biodiversity potential. However, their intensive and monofunctional use typically erodes its natural capital, including biodiversity. Here we address the ecological value of fine scale structural elements represented by sparsely scattered trees and shrubs for the spider communities in a moderately intensively grazed pasture in Transylvania, Eastern Europe...
2017: PloS One
https://www.readbyqxmd.com/read/28884827/linking-social-and-spatial-networks-to-viral-community-phylogenetics-reveal-subtype-specific-transmission-dynamics-in-african-lions
#17
Nicholas M Fountain-Jones, Craig Packer, Jennifer L Troyer, Kimberly VanderWaal, Stacie Robinson, Maude Jacquot, Meggan E Craft
1.Heterogeneity within pathogen species can have important consequences for how pathogens transmit across landscapes; however, discerning different transmission routes is challenging. 2.Here we apply both phylodynamic and phylogenetic community ecology techniques to examine the consequences of pathogen heterogeneity on transmission by assessing subtype specific transmission pathways in a social carnivore. 3.We use comprehensive social and spatial network data to examine transmission pathways for three subtypes of feline immunodeficiency virus (FIVPle ) in African lions (Panthera leo) at multiple scales in the Serengeti National Park, Tanzania...
September 8, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28884406/similarities-and-differences-in-barriers-and-opportunities-affecting-climate-change-adaptation-action-in-four-north-american-landscapes
#18
Whitney R Lonsdale, Heidi E Kretser, Cheryl-Lesley B Chetkiewicz, Molly S Cross
Climate change presents a complex set of challenges for natural resource managers across North America. Despite recognition that climate change poses serious threats to species, ecosystems, and human communities, implementation of adaptation measures is not yet happening on a broad scale. Among different regions, a range of climate change trajectories, varying political contexts, and diverse social and ecological systems generate a myriad of factors that can affect progress on climate change adaptation implementation...
September 7, 2017: Environmental Management
https://www.readbyqxmd.com/read/28881439/natural-disturbances-are-spatially-diverse-but-temporally-synchronized-across-temperate-forest-landscapes-in-europe
#19
Cornelius Senf, Rupert Seidl
Natural disturbance regimes are changing substantially in forests around the globe. However, large-scale disturbance change is modulated by a considerable spatiotemporal variation within biomes. This variation remains incompletely understood particularly in the temperate forests of Europe, for which consistent large-scale disturbance information is lacking. Here our aim was to quantify the spatiotemporal patterns of forest disturbances across temperate forest landscapes in Europe using remote sensing data, and determine their underlying drivers...
September 7, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28875263/pillar-of-strength-columnar-cactus-as-a-key-factor-in-yoreme-heritage-and-wildland-preservation
#20
Andrew J Semotiuk, Patricia Colunga-GarcíaMarín, David Valenzuela Maldonado, Exequiel Ezcurra
The persistence of traditional cultures and modes of land use within rapidly changing, globalized societies is a central issue in understanding ecological and cultural change in the Anthropocene. Located in the heart of the Green Revolution, the Yoreme (Mayo) people of the Mayo Valley in Mexico still obtain a significant proportion of their sustenance from wild ecosystems in the midst of this intensive technological and agricultural development. They live in and around the thornscrub dominated by pitaya (Stenocereus thurberi (Engelm...
September 5, 2017: Ambio
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