keyword
MENU ▼
Read by QxMD icon Read
search

Biodiversity

keyword
https://www.readbyqxmd.com/read/29793079/shifts-in-wind-energy-potential-following-land-use-driven-vegetation-dynamics-in-complex-terrain
#1
Jiannong Fang, Alexander Peringer, Mihai-Sorin Stupariu, Ileana Pǎtru-Stupariu, Alexandre Buttler, Francois Golay, Fernando Porté-Agel
Many mountainous regions with high wind energy potential are characterized by multi-scale variabilities of vegetation in both spatial and time dimensions, which strongly affect the spatial distribution of wind resource and its time evolution. To this end, we developed a coupled interdisciplinary modeling framework capable of assessing the shifts in wind energy potential following land-use driven vegetation dynamics in complex mountain terrain. It was applied to a case study area in the Romanian Carpathians...
May 21, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29792597/increasing-plant-diversity-with-border-crops-reduces-insecticide-use-and-increases-crop-yield-in-urban-agriculture
#2
Nian-Feng Wan, You-Ming Cai, Yan-Jun Shen, Xiang-Yun Ji, Xiang-Wen Wu, Xiang-Rong Zheng, Wei Cheng, Jun Li, Yao-Pei Jiang, Xin Chen, Jacob Weiner, Jie-Xian Jiang, Ming Nie, Rui-Ting Ju, Tao Yuan, Jian-Jun Tang, Wei-Dong Tian, Hao Zhang, Bo Li
Urban agriculture is making an increasing contribution to food security in large cities around the world. The potential contribution of biodiversity to ecological intensification in urban agricultural systems has not been investigated. We present monitoring data collected from rice fields in 34 community farms in mega-urban Shanghai, China, from 2001 to 2015, and show that the presence of a border crop of soybeans and neighboring crops (maize, eggplant and Chinese cabbage), both without weed control, increased invertebrate predator abundance, decreased the abundance of pests and dependence on insecticides, and increased grain yield and economic profits...
May 24, 2018: ELife
https://www.readbyqxmd.com/read/29791787/dna-barcoding-of-microgastrine-parasitoid-wasps-hymenoptera-braconidae-using-high-throughput-methods-more-than-doubles-the-number-of-species-known-for-australia
#3
Erinn P Fagan-Jeffries, Steven J B Cooper, Terry Bertozzi, Tessa M Bradford, Andrew D Austin
The Microgastrinae are a hugely diverse subfamily of endoparasitoid wasps of lepidopteran caterpillars. They are important in agriculture as biological control agents, and play a significant ecological role in the regulation of caterpillar populations. Whilst the group has been the focus of intensive rearing and DNA barcoding studies in the Northern Hemisphere, the Australian fauna has received little attention. In total, 100 species have been described from or have been introduced into Australia, but the real species diversity for the region is clearly much larger than this...
May 23, 2018: Molecular Ecology Resources
https://www.readbyqxmd.com/read/29791769/bioprospecting-from-marine-coastal-sediments-of-colombian-caribbean-screening-and-study-of-antimicrobial-activity
#4
M Quintero, A Velásquez, L M Jutinico, E Jiménez-Vergara, L M Blandón, K Martinez, H S Lee, J Gómez-León
AIMS: To isolate microorganisms associated to marine - coastal sediments of colombian Caribbean and for evaluating its antimicrobial activity in order to identify the most active strains. METHODS AND RESULTS: 104 strains were isolated from sediment samples of the colombian Caribbean. First at all, an antimicrobial activity screening was made using agar well diffusion method against the pathogens: Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae, Candida albicans, Candida tropicalis and Pseudomonas aeruginosa...
May 23, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29791493/agricultural-matrices-affect-ground-ant-assemblage-composition-inside-forest-fragments
#5
Diego Santana Assis, Iracenir Andrade Dos Santos, Flavio Nunes Ramos, Katty Elena Barrios-Rojas, Jonathan David Majer, Evaldo Ferreira Vilela
The establishment of agricultural matrices generally involves deforestation, which leads to fragmentation of the remaining forest. This fragmentation can affect forest dynamics both positively and negatively. Since most animal species are affected, certain groups can be used to measure the impact of such fragmentation. This study aimed to measure the impacts of agricultural crops (matrices) on ant communities of adjacent lower montane Atlantic rainforest fragments. We sampled nine forest fragments at locations surrounded by different agricultural matrices, namely: coffee (3 replicates); sugarcane (3); and pasture (3)...
2018: PloS One
https://www.readbyqxmd.com/read/29791491/community-structure-informs-species-geographic-distributions
#6
Alicia Montesinos-Navarro, Alba Estrada, Xavier Font, Miguel G Matias, Catarina Meireles, Manuel Mendoza, Joao P Honrado, Hari D Prasad, Joana R Vicente, Regan Early
Understanding what determines species' geographic distributions is crucial for assessing global change threats to biodiversity. Measuring limits on distributions is usually, and necessarily, done with data at large geographic extents and coarse spatial resolution. However, survival of individuals is determined by processes that happen at small spatial scales. The relative abundance of coexisting species (i.e. 'community structure') reflects assembly processes occurring at small scales, and are often available for relatively extensive areas, so could be useful for explaining species distributions...
2018: PloS One
https://www.readbyqxmd.com/read/29791459/species-identification-and-connectivity-of-marine-amphipods-in-canada-s-three-oceans
#7
Astrid Tempestini, Søren Rysgaard, France Dufresne
Monitoring the distribution of marine biodiversity is a crucial step to better assess the impacts of global changes. Arctic marine fauna is dominated by amphipods in terms of abundance and biomass. These peracarids are an important marine order of crustaceans but the number of species found in the different Canadian oceans is currently unknown. Furthermore, most species are difficult to identify due to poor taxonomic descriptions and morphological convergence. The aim of this study was to assess the species diversity of marine amphipods in the three Canadian oceans using DNA barcoding...
2018: PloS One
https://www.readbyqxmd.com/read/29791035/uncovering-cryptic-diversity-of-lyngbya-the-new-tropical-marine-cyanobacterial-genus-dapis-oscillatoriales
#8
Niclas Engene, Ana Tronholm, Valerie J Paul
Cyanobacteria comprise an extraordinarily diverse group of microorganisms and, as revealed by increasing molecular information, this biodiversity is even more extensive than previously estimated. In this sense, the cyanobacterial genus Lyngbya is a highly polyphyletic group composed of many unrelated taxa with morphological similarities. In this study, the new genus Dapis was erected from the genus Lyngbya, based on a combined molecular, chemical, and morphological approach. Herein, two new species of cyanobacteria are described: D...
May 23, 2018: Journal of Phycology
https://www.readbyqxmd.com/read/29790949/fecal-microbiota-composition-changes-after-a-body-weight-loss-diet-in-beagle-dogs
#9
A Salas, I Jeusette, I Castillo, C L Manuelian, C Lionnet, N Iraculis, N Sanchez, S Fernández, L L Vilaseca, C Torre
In developed countries, dogs and cats frequently suffer from obesity. Recently, gut microbiota composition in humans has been related to obesity and metabolic diseases. This study aimed to evaluate changes in body composition, and gut microbiota composition in obese Beagle dogs after a 17-week body weight (BW) loss program. A total of six neutered adult Beagle dogs with an average initial BW of 16.34 ± 1.52 kg and BCS of 7.8 ± 0.1 points (9-point scale) were restrictedly fed with a hypocaloric, low-fat and high-fiber dry-type diet...
May 22, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29790203/land-use-trade-offs-between-tree-biodiversity-and-crop-production-in-the-atlantic-forest
#10
Vinícius Marcilio-Silva, Márcia C M Marques, Jeannine Cavender-Bares
Trade-offs in ecosystem services (ES) have received increasing attention because provisioning services often come at the expense of biodiversity loss. When land-use patterns are not maximally efficient often provisioning services such as crop production can increase without sacrificing biodiversity. The Atlantic Forest (AF) encompasses Dense, Mixed and Seasonal forests and is a hotspot for biodiversity conservation, given its high levels of endemism and anthropogenic threat. Examining trade-offs between biodiversity and crop production in the AF can provide insights into land-use management decisions...
May 23, 2018: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/29790014/biochemical-profile-of-non-enzymatic-stress-markers-in-the-plant-species-urginea-maritima-in-a-mediterranean-natural-reserve-exposed-to-oxidative-stress
#11
Yara Khairallah, Tarek Houri, Bilal Osta, Dany Romanos, Georges Haddad
Protected areas decrease degrading natural ecosystems due to pollution such as air pollution. In 1981, the inhabitants founded Bentael natural reserve in Byblos, Lebanon, to secure their region against urbanization projects, like the recently constructed road that threatens the biodiversity of the reserve. This study was conducted to determine the oxidative stress resulting from this pollution and that menaces 360 floral species among them a rare species "Urginea maritima." In this research, the biomonitoring approach was experienced to assess the oxidative stress...
May 22, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29788536/community-disassembly-under-global-change-evidence-in-favor-of-the-stress-dominance-hypothesis
#12
Lucie Kuczynski, Gaël Grenouillet
Ecological theory suggests that communities are not random combinations of species but rather the results of community assembly processes filtering and sorting species that are able to coexist together. To date, such processes (i.e. assembly rules) have been inferred from observed spatial patterns of biodiversity combined with null model approaches, but relatively few attempts have been made to assess how these processes may be changing through time. Specifically in the context of the on-going biodiversity crisis and global change, understanding how processes shaping communities may be changing and identifying the potential drivers underlying these changes become increasingly critical...
May 22, 2018: Global Change Biology
https://www.readbyqxmd.com/read/29787637/fear-based-niche-shifts-in-neotropical-birds
#13
Ari E Martínez, Eliseo Parra, Oliver Muellerklein, Vance T Vredenburg
Predation is a strong ecological force that shapes animal communities through natural selection. Recent studies have shown the cascading effects of predation risk on ecosystems through changes in prey behavior. Minimizing predation risk may explain why multiple prey species associate together in space and time. For example, mixed-species flocks that have been widely documented from forest systems, often include birds that eavesdrop on sentinel species (alarm calling heterospecifics). Sentinel species may be pivotal in (1) allowing flocking species to forage in open areas within forests that otherwise incur high predation risk, and (2) influencing flock occurrence (the amount of time species spend with a flock)...
May 22, 2018: Ecology
https://www.readbyqxmd.com/read/29786923/biodiversity-of-the-human-oral-mycobiome-in-health-and-disease
#14
H M H N Bandara, C P Panduwawala, L P Samaranayake
The organisms that colonize the human body over a lifetime are diverse, extensive and gargantuan. A fair proportion of the microbiota that constitutes this human microbiome live within our oral cavities mostly as harmonious associates causing only sporadic disease. An important core constituent of the microbiome is the mycobiome, representing various fungal genera. Up until recently, only a few species of fungi, mainly Candida species, were thought to constitute the human oral mycobiome. The reasons for this are manifold, although the uncultivable nature of many fungi in conventional laboratory media, and their complex genetic composition seem to be the major factors which eluded their detection over the years...
May 22, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29785612/water-forests-people-the-swedish-experience-in-building-resilient-landscapes
#15
Mats Eriksson, Lotta Samuelson, Linnéa Jägrud, Eskil Mattsson, Thorsten Celander, Anders Malmer, Klas Bengtsson, Olof Johansson, Nicolai Schaaf, Ola Svending, Anna Tengberg
A growing world population and rapid expansion of cities increase the pressure on basic resources such as water, food and energy. To safeguard the provision of these resources, restoration and sustainable management of landscapes is pivotal, including sustainable forest and water management. Sustainable forest management includes forest conservation, restoration, forestry and agroforestry practices. Interlinkages between forests and water are fundamental to moderate water budgets, stabilize runoff, reduce erosion and improve biodiversity and water quality...
May 21, 2018: Environmental Management
https://www.readbyqxmd.com/read/29785607/green-certification-e-commerce-and-low-carbon-economy-for-international-tourist-hotels
#16
Long-Fei Chen
Increasing population and over-consumption are placing unprecedented demands on agriculture and natural resources. The Earth is suffering from global warning and environmental destruction while our agricultural systems are concurrently degrading land, water, biodiversity, and climate on a global scale. For a sustainable future, green certification, e-commerce, and environment education can boost low-carbon economy with decreasing carbon emissions, but very few researches address them for the hotel industry...
May 22, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29785352/diversity-and-community-structure-of-marine-microbes-around-the-benham-rise-underwater-plateau-northeastern-philippines
#17
Andrian P Gajigan, Aletta T Yñiguez, Cesar L Villanoy, Maria Lourdes San Diego-McGlone, Gil S Jacinto, Cecilia Conaco
Microbes are central to the structuring and functioning of marine ecosystems. Given the remarkable diversity of the ocean microbiome, uncovering marine microbial taxa remains a fundamental challenge in microbial ecology. However, there has been little effort, thus far, to describe the diversity of marine microorganisms in the region of high marine biodiversity around the Philippines. Here, we present data on the taxonomic diversity of bacteria and archaea in Benham Rise, Philippines, Western Pacific Ocean, using 16S V4 rRNA gene sequencing...
2018: PeerJ
https://www.readbyqxmd.com/read/29785057/computational-redesign-of-enzymes-for-regio-and-enantioselective-hydroamination
#18
Ruifeng Li, Hein J Wijma, Lu Song, Yinglu Cui, Marleen Otzen, Yu'e Tian, Jiawei Du, Tao Li, Dingding Niu, Yanchun Chen, Jing Feng, Jian Han, Hao Chen, Yong Tao, Dick B Janssen, Bian Wu
Introduction of innovative biocatalytic processes offers great promise for applications in green chemistry. However, owing to limited catalytic performance, the enzymes harvested from nature's biodiversity often need to be improved for their desired functions by time-consuming iterative rounds of laboratory evolution. Here we describe the use of structure-based computational enzyme design to convert Bacillus sp. YM55-1 aspartase, an enzyme with a very narrow substrate scope, to a set of complementary hydroamination biocatalysts...
May 21, 2018: Nature Chemical Biology
https://www.readbyqxmd.com/read/29784980/global-mismatch-of-policy-and-research-on-drivers-of-biodiversity-loss
#19
Tessa Mazor, Christopher Doropoulos, Florian Schwarzmueller, Daniel W Gladish, Nagalingam Kumaran, Katharina Merkel, Moreno Di Marco, Vesna Gagic
The United Nations 2030 Agenda for Sustainable Development calls for urgent actions to reduce global biodiversity loss. Here, we synthesize >44,000 articles published in the past decade to assess the research focus on global drivers of loss. Relative research efforts on different drivers are not well aligned with their assessed impact, and multiple driver interactions are hardly considered. Research on drivers of biodiversity loss needs urgent realignment to match predicted severity and inform policy goals...
May 21, 2018: Nature Ecology & Evolution
https://www.readbyqxmd.com/read/29784825/global-patterns-of-protection-of-elevational-gradients-in-mountain-ranges
#20
Paul R Elsen, William B Monahan, Adina M Merenlender
Protected areas (PAs) that span elevational gradients enhance protection for taxonomic and phylogenetic diversity and facilitate species range shifts under climate change. We quantified the global protection of elevational gradients by analyzing the elevational distributions of 44,155 PAs in 1,010 mountain ranges using the highest resolution digital elevation models available. We show that, on average, mountain ranges in Africa and Asia have the lowest elevational protection, ranges in Europe and South America have intermediate elevational protection, and ranges in North America and Oceania have the highest elevational protection...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
keyword
keyword
12447
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"