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https://www.readbyqxmd.com/read/28431195/feeding-behavior-and-activity-budget-of-the-southern-yellow-cheeked-crested-gibbons-nomascus-gabriellae-in-a-lowland-tropical-forest
#1
Thanh H Bach, Jin Chen, Minh D Hoang, Kingsly C Beng, Van T Nguyen
The southern yellow-cheeked crested gibbon (Nomascus gabriellae), an endangered species native to Vietnam and Cambodia, lives exclusively in undisturbed tropical forests and depends primarily on ripe fruit for food. Although this species is highly threatened, its ecology and conservation status remain relatively unknown. In order to understand how this heavily frugivorous primate adapts to the seasonal fluctuation of fruit resources in the forest, we collected feeding behavior and ranging activity data on one group of southern yellow-cheeked crested gibbons in Cat Tien National Park, Vietnam, over 1-year period...
April 21, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/28429848/stuck-in-fragments-population-genetics-of-the-endangered-collared-brown-lemur-eulemur-collaris-in-the-malagasy-littoral-forest
#2
Stefania Bertoncini, Jacopo D'Ercole, Francesca Brisighelli, Jean-Baptiste Ramanamanjato, Cristian Capelli, Sergio Tofanelli, Giuseppe Donati
OBJECTIVES: The Endangered collared brown lemur (Eulemur collaris) is the largest primate living in the littoral forest of southeastern Madagascar, a top priority habitat for biodiversity conservation on the island. Because this lemur is a key seed-disperser, an evaluation of the structure and connectivity of the populations surviving in the forest fragments is urgently needed to guide conservation plans. MATERIALS AND METHODS: Genetic variability at autosomal microsatellites and mitochondrial DNA was investigated in a total of 49 collared brown lemurs sampled by non-invasive methods in three littoral forest fragments and in the nearby lowland humid forest...
April 21, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28429170/comparison-of-energy-balance-between-two-different-sized-groups-of-japanese-macaques-macaca-fuscata-yakui
#3
Yosuke Kurihara, Goro Hanya
Quantifying the energy balance is essential for testing socio-ecological models. To reveal costs and benefits of group living in Japanese macaques from the perspective of feeding competition, Kurihara and Hanya (Am J Primatol 77:986-1000, 2015) previously compared feeding behavior between two different-sized groups of macaques (larger group 30-35 individuals; smaller group 13-15 individuals) in the coastal forest of Yakushima, Japan. The results suggested that the larger group exhibited greater feeding effort because of intragroup scramble competition and that the smaller group suffered from higher travel costs, possibly owing to intergroup contest competition...
April 20, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28428858/genetic-diversity-and-spatial-structure-of-the-rufous-throated-antbird-gymnopithys-rufigula-an-amazonian-obligate-army-ant-follower
#4
Juliana Menger, Klaus Henle, William E Magnusson, Antonella Soro, Martin Husemann, Martin Schlegel
Amazonian understory antbirds are thought to be relatively sedentary and to have limited dispersal ability; they avoid crossing forest gaps, and even narrow roads through a forest may limit their territories. However, most evidence for sedentariness in antbirds comes from field observations and plot-based recapture of adult individuals, which do not provide evidence for lack of genetic dispersal, as this often occurs through juveniles. In this study, we used microsatellite markers and mitochondrial control-region sequences to investigate contemporary and infer historical patterns of genetic diversity and structure of the Rufous-throated Antbird (Gymnopithys rufigula) within and between two large reserves in central Amazonia...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428841/reproductive-traits-associated-with-species-turnover-of-amphibians-in-amazonia-and-its-andean-slopes
#5
Octavio Jiménez-Robles, Juan M Guayasamin, Santiago R Ron, Ignacio De la Riva
Assembly of ecological communities is important for the conservation of ecosystems, predicting perturbation impacts, and understanding the origin and loss of biodiversity. We tested how amphibian communities are assembled by neutral and niche-based mechanisms, such as habitat filtering. Species richness, β-diversities, and reproductive traits of amphibians were evaluated at local scale in seven habitats at different elevation and disturbance levels in Wisui Biological Station, Morona-Santiago, Ecuador, on the foothills of the Cordillera del Kutukú; and at regional scale using 109 localities across evergreen forests of Amazonia and its Andean slopes (0-3,900 m a...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28427567/benthic-dinoflagellate-integrator-bedi-a-new-method-for-the-quantification-of-benthic-harmful-algal-blooms
#6
Luisa Mangialajo, Anna Fricke, Gala Perez-Gutierrez, Daniela Catania, Cécile Jauzein, Rodolphe Lemee
Despite the potential negative human health, ecological and economic impact, the ecology of harmful benthic dinoflagellate blooms remains largely unknown. This is probably due to the complex interactions among biotic and abiotic drivers that influence blooms, but also to the difficulty in quantifying cell abundance in a comparable way over large spatial and temporal scales. One of the recognized priorities for bHABs (benthic Harmful Algal Blooms) assessment is developing and standardizing methods that can provide comparable data...
April 2017: Harmful Algae
https://www.readbyqxmd.com/read/28427386/heterogeneous-distributional-responses-to-climate-warming-evidence-from-rodents-along-a-subtropical-elevational-gradient
#7
Zhixin Wen, Yi Wu, Deyan Ge, Jilong Cheng, Yongbin Chang, Zhisong Yang, Lin Xia, Qisen Yang
BACKGROUND: Understanding whether species' elevational range is shifting in response to directional changes in climate and whether there is a predictable pattern in that response is one of the major challenges in ecology. However, so far very little is known about the distributional responses of subtropical species to climate change, especially for small mammals. In this study, we examined the elevational range shifts at three range points (upper and lower range limits and abundance-weighted range centre) of rodents over a 30-year period (1986 to 2014-2015), in a subtropical forest of Southwest China...
April 20, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28426780/response-of-spatial-vegetation-distribution-in-china-to-climate-changes-since-the-last-glacial-maximum-lgm
#8
Siyang Wang, Xiaoting Xu, Nawal Shrestha, Niklaus E Zimmermann, Zhiyao Tang, Zhiheng Wang
Analyzing how climate change affects vegetation distribution is one of the central issues of global change ecology as this has important implications for the carbon budget of terrestrial vegetation. Mapping vegetation distribution under historical climate scenarios is essential for understanding the response of vegetation distribution to future climatic changes. The reconstructions of palaeovegetation based on pollen data provide a useful method to understand the relationship between climate and vegetation distribution...
2017: PloS One
https://www.readbyqxmd.com/read/28424662/untangling-genomes-of-novel-planctomycetal-and-verrucomicrobial-species-from-monterey-bay-kelp-forest-metagenomes-by-refined-binning
#9
John Vollmers, Martinique Frentrup, Patrick Rast, Christian Jogler, Anne-Kristin Kaster
The kelp forest of the Pacific temperate rocky marine coastline of Monterey Bay in California is a dominant habitat for large brown macro-algae in the order of Laminariales. It is probably one of the most species-rich, structurally complex and productive ecosystems in temperate waters and well-studied in terms of trophic ecology. However, still little is known about the microorganisms thriving in this habitat. A growing body of evidence suggests that bacteria associated with macro-algae represent a huge and largely untapped resource of natural products with chemical structures that have been optimized by evolution for biological and ecological purposes...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28423087/epidemiological-aspects-of-american-cutaneous-leishmaniasis-acl-in-an-endemic-area-of-forest-extractivist-culture-in-western-brazilian-amazonia
#10
Andreia Fernandes Brilhante, Leonardo Augusto Kohatsu Melchior, Vânia Lúcia Brandão Nunes, Cristiane de Oliveira Cardoso, Eunice Aparecida Bianchi Galati
The study sought to analyze clinical and epidemiological aspects of cutaneous leishmaniasis (CL) in Xapuri, Acre, Brazil. Data from 2008 to 2014 registered in the notification records of the disease of the Information System of the Complaints of Notification (SINAN), and the data of the Information Department of the Unified Health System (DATASUS) available from 2007 to 2013 were used and analyzed in the light of the statistics of the temporal series by the Prais-Winsten method and chi-squared test. A total of 906 cases were registered with 60...
April 13, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28422148/chemical-and-bioactive-profiling-and-biological-activities-of-coral-fungi-from-northwestern-himalayas
#11
Sapan Kumar Sharma, Nandini Gautam
Ramaria Fr. and Clavaria L. are the two major genera of coral mushrooms within families Gomphaceae and Clavariaceae, respectively. Besides having important role in forest ecology, some species of these are reported to possess high nutraceutical and bioactive potential. There is a hidden diversity of coral mushrooms in Northwestern Himalayas. Present studies describe the detailed biochemical profiling and antioxidant, and antibacterial activities of twelve coral mushroom species. Biochemical profiling of nutrients and nutraceuticals was done with standard techniques and by using HPLC, UPLC and GC...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28421267/potential-distribution-of-mountain-cloud-forest-in-michoac%C3%A3-n-mexico-prioritization-for-conservation-in-the-context-of-landscape-connectivity
#12
Camilo A Correa Ayram, Manuel E Mendoza, Andrés Etter, Diego R Pérez Salicrup
Landscape connectivity is essential in biodiversity conservation because of its ability to reduce the effect of habitat fragmentation; furthermore is a key property in adapting to climate change. Potential distribution models and landscape connectivity studies have increased with regard to their utility to prioritizing areas for conservation. The objective of this study was to model the potential distribution of Mountain cloud forests in the Transversal Volcanic System, Michoacán and to analyze the role of these areas in maintaining landscape connectivity...
April 18, 2017: Environmental Management
https://www.readbyqxmd.com/read/28419169/decomposing-functional-trait-associations-in-a-chinese-subtropical-forest
#13
Xuefei Li, Kequan Pei, Marc Kéry, Pascal A Niklaus, Bernhard Schmid
Functional traits, properties of organisms correlated with ecological performance, play a central role in plant community assembly and functioning. To some extents, functional traits vary in concert, reflecting fundamental ecological strategies. While "trait syndromes" characteristic of e.g. fast-growing, early-successional vs. competitive, late-successional species are recognized in principle, less is known about the environmental and genetic factors at the source of trait variation and covariation within plant communities...
2017: PloS One
https://www.readbyqxmd.com/read/28414813/dna-barcoding-evaluation-and-implications-for-phylogenetic-relationships-in-lauraceae-from-china
#14
Zhi-Fang Liu, Xiu-Qin Ci, Lang Li, Hsi-Wen Li, John G Conran, Jie Li
Lauraceae are an important component of tropical and subtropical forests and have major ecological and economic significance. Owing to lack of clear-cut morphological differences between genera and species, this family is an ideal case for testing the efficacy of DNA barcoding in the identification and discrimination of species and genera. In this study, we evaluated five widely recommended plant DNA barcode loci matK, rbcL, trnH-psbA, ITS2 and the entire ITS region for 409 individuals representing 133 species, 12 genera from China...
2017: PloS One
https://www.readbyqxmd.com/read/28413175/prenatal-postcranial-development-in-two-species-of-sympatric-japanese-wood-mice-apodemus-argenteus-and-a-speciosus-a-comparison-of-arboreal-versus-terrestrial-congeners
#15
Daisuke Koyabu
Habitats of two closely related Japanese field mice, Apodemus argenteus and A. speciosus, broadly overlap in many Japanese forests. A. argenteus being more arboreal and A. speciosus being more terrestrial, it is thought that such ecological segregation allows their sympatric distribution. Comparing these two congeners, whether ecological difference is reflected in postcranial development was examined. Although overall ossification sequences were virtually identical, development of the caudal vertebrae was remarkably earlier in A...
April 13, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28412938/broad-and-flexible-stable-isotope-niches-in-invasive-non-native-rattus-spp-in-anthropogenic-and-natural-habitats-of-central-eastern-madagascar
#16
Melanie Dammhahn, Toky M Randriamoria, Steven M Goodman
BACKGROUND: Rodents of the genus Rattus are among the most pervasive and successful invasive species, causing major vicissitudes in native ecological communities. A broad and flexible generalist diet has been suggested as key to the invasion success of Rattus spp. Here, we use an indirect approach to better understand foraging niche width, plasticity, and overlap within and between introduced Rattus spp. in anthropogenic habitats and natural humid forests of Madagascar. RESULTS: Based on stable carbon and nitrogen isotope values measured in hair samples of 589 individual rodents, we found that Rattus rattus had an extremely wide foraging niche, encompassing the isotopic space covered by a complete endemic forest-dwelling Malagasy small mammal community...
April 17, 2017: BMC Ecology
https://www.readbyqxmd.com/read/28412490/serpentine-soils-affect-heavy-metal-tolerance-but-not-genetic-diversity-in-a-common-mediterranean-ant
#17
Filippo Frizzi, Alberto Masoni, Mine Çelikkol, Enrico Palchetti, Claudio Ciofi, Guido Chelazzi, Giacomo Santini
Natural habitats with serpentine soils are rich in heavy metal ions, which may significantly affect ecological communities. Exposure to metal pollutants results, for instance, in a reduction of population genetic diversity and a diffused higher tolerance towards heavy metals. In this study, we investigated whether chronic exposure to metals in serpentine soils affect accumulation patterns, tolerance towards metal pollutants, and genetic diversity in ants. In particular, we studied colonies of the common Mediterranean ant, Crematogaster scutellaris, along a contamination gradient consisting of two differently contaminated forests and a reference soil with no geogenic contamination...
April 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/28411568/projecting-biodiversity-and-wood-production-in-future-forest-landscapes-15-key-modeling-considerations
#18
Adam Felton, Thomas Ranius, Jean-Michel Roberge, Karin Öhman, Tomas Lämås, Jari Hynynen, Artti Juutinen, Mikko Mönkkönen, Urban Nilsson, Tomas Lundmark, Annika Nordin
A variety of modeling approaches can be used to project the future development of forest systems, and help to assess the implications of different management alternatives for biodiversity and ecosystem services. This diversity of approaches does however present both an opportunity and an obstacle for those trying to decide which modeling technique to apply, and interpreting the management implications of model output. Furthermore, the breadth of issues relevant to addressing key questions related to forest ecology, conservation biology, silviculture, economics, requires insights stemming from a number of distinct scientific disciplines...
April 12, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28411319/fifty-year-spatiotemporal-analysis-of-landscape-changes-in-the-mont-saint-hilaire-unesco-biosphere-reserve-quebec-canada
#19
Marc Béliveau, Daniel Germain, Ana-Neli Ianăş
Diachronic analysis with a GIS-based classification of land-use changes based on aerial photographs, orthophotos, topographic maps, geotechnical reports, urban plans, and using landscape metrics has permitted insight into the driving forces responsible for landscape fragmentation in the Mont Saint-Hilaire (MSH) Biosphere Reserve over the period 1958-2015. Although the occurrence of exogenous factors, such as extreme weather and fires, can have a significant influence on the fragmentation of the territory in time and space, the accelerated development of the built environment (+470%) is nevertheless found to be primarily responsible for landscape fragmentation and the loss of areas formerly occupied by orchards, agriculture, and woodlands...
May 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28410432/patterns-of-orchid-bee-species-diversity-and-turnover-among-forested-plateaus-of-central-amazonia
#20
Yasmine Antonini, Carolina de Barros Machado, Pedro Manoel Galetti, Marcio Oliveira, Rodolfo Dirzo, Geraldo Wilson Fernandes
The knowledge of spatial pattern and geographic beta-diversity is of great importance for biodiversity conservation and interpreting ecological information. Tropical forests, especially the Amazon Rainforest, are well known for their high species richness and low similarity in species composition between sites, both at local and regional scales. We aimed to determine the effect and relative importance of area, isolation and climate on species richness and turnover in orchid bee assemblages among plateaus in central Brazilian Amazonia...
2017: PloS One
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