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https://www.readbyqxmd.com/read/28213498/dispersal-assembly-of-rain-forest-tree-communities-across-the-amazon-basin
#1
Kyle G Dexter, Mathew Lavin, Benjamin M Torke, Alex D Twyford, Thomas A Kursar, Phyllis D Coley, Camila Drake, Ruth Hollands, R Toby Pennington
We investigate patterns of historical assembly of tree communities across Amazonia using a newly developed phylogeny for the species-rich neotropical tree genus Inga We compare our results with those for three other ecologically important, diverse, and abundant Amazonian tree lineages, Swartzia, Protieae, and Guatteria Our analyses using phylogenetic diversity metrics demonstrate a clear lack of geographic phylogenetic structure, and show that local communities of Inga and regional communities of all four lineages are assembled by dispersal across Amazonia...
February 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28211601/biogeography-of-nodulated-legumes-and-their-nitrogen-fixing-symbionts
#2
REVIEW
Janet I Sprent, Julie Ardley, Euan K James
Contents I. II. III. IV. V. VI. VII. VIII. References SUMMARY: In the last decade, analyses of both molecular and morphological characters, including nodulation, have led to major changes in our understanding of legume taxonomy. In parallel there has been an explosion in the number of genera and species of rhizobia known to nodulate legumes. No attempt has been made to link these two sets of data or to consider them in a biogeographical context. This review aims to do this by relating the data to the evolution of the two partners: it highlights both longitudinal and latitudinal trends and considers these in relation to the location of major land masses over geological time...
February 17, 2017: New Phytologist
https://www.readbyqxmd.com/read/28207874/growth-and-life-history-variability-of-the-grey-reef-shark-carcharhinus-amblyrhynchos-across-its-range
#3
Darcy Bradley, Eric Conklin, Yannis P Papastamatiou, Douglas J McCauley, Kydd Pollock, Bruce E Kendall, Steven D Gaines, Jennifer E Caselle
For broadly distributed, often overexploited species such as elasmobranchs (sharks and rays), conservation management would benefit from understanding how life history traits change in response to local environmental and ecological factors. However, fishing obfuscates this objective by causing complex and often mixed effects on the life histories of target species. Disentangling the many drivers of life history variability requires knowledge of elasmobranch populations in the absence of fishing, which is rarely available...
2017: PloS One
https://www.readbyqxmd.com/read/28199442/phylogeographic-history-of-south-american-populations-of-the-silky-anteater-cyclopes-didactylus-pilosa-cyclopedidae
#4
Raphael Teodoro Franciscani Coimbra, Flávia Regina Miranda, Camila Clozato Lara, Marco Antônio Alves Schetino, Fabrício Rodrigues Dos Santos
Cyclopes didactylus, commonly called silky anteater, is the smallest and least studied of the anteaters. It is an arboreal species occurring in rainforests, ranging from southern Mexico to Central and South America, with an apparently disjoint distribution between Amazon and Atlantic rainforests in Brazil. Although seven subspecies are recognized, little is known about its geographical variation. Thus, to evaluate the population dynamics and evolutionary history of the South American silky anteater, we analyzed 1542 bp sequences of the mitochondrial control region (CR), COI and Cyt-b genes of 32 individuals...
February 13, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28191629/functional-and-phylogenetic-structure-of-island-bird-communities
#5
Xingfeng Si, Marc W Cadotte, Di Zeng, Andrés Baselga, Yuhao Zhao, Jiaqi Li, Yiru Wu, Siyu Wang, Ping Ding
1. Biodiversity change in anthropogenically transformed habitats is often nonrandom, yet the nature and importance of the different mechanisms shaping community structure are unclear. Here, we extend the classic Theory of Island Biogeography (TIB) to account for nonrandom processes by incorporating species traits and phylogenetic relationships into a study of faunal relaxation following habitat loss and fragmentation. 2. Two possible mechanisms can create nonrandom community patterns on fragment islands. First, small and isolated islands might consist of similar or closely related species because they are environmentally homogeneous or select for certain shared traits, such as dispersal ability...
February 13, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28191504/distinct-biogeographic-patterns-for-archaea-bacteria-and-fungi-along-the-vegetation-gradient-at-the-continental-scale-in-eastern-china
#6
Bin Ma, Zhongmin Dai, Haizhen Wang, Melissa Dsouza, Xingmei Liu, Yan He, Jianjun Wu, Jorge L M Rodrigues, Jack A Gilbert, Philip C Brookes, Jianming Xu
The natural forest ecosystem in Eastern China, from tropical forest to boreal forest, has declined due to cropland development during the last 300 years, yet little is known about the historical biogeographic patterns and driving processes for the major domains of microorganisms along this continental-scale natural vegetation gradient. We predicted the biogeographic patterns of soil archaeal, bacterial, and fungal communities across 110 natural forest sites along a transect across four vegetation zones in Eastern China...
January 2017: MSystems
https://www.readbyqxmd.com/read/28188662/population-genetics-of-reef-coral-endosymbionts-symbiodinium-dinophyceae
#7
D J Thornhill, E J Howells, D C Wham, T D Steury, S R Santos
Symbiodinium is a diverse genus of unicellular dinoflagellate symbionts associating with various marine protists and invertebrates. Although the broad-scale diversity and phylogenetics of the Symbiodinium complex is well established, there have been surprisingly few data on fine-scale population structure and biogeography of these dinoflagellates. Yet population level processes contribute strongly to the biology of Symbiodinium, including how anthropogenic-driven global climate change impacts these symbionts and their host associations...
February 11, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28187640/a-revision-of-the-cis-andean-species-of-the-genus-i-brycon-i-m%C3%A3-ller-amp-troschel-characiformes-characidae
#8
Flávio C T Lima
A revision of the cis-andean species of Brycon, with the exception of the Brycon pesu species-complex, is presented. Twenty-one Brycon species (including B. pesu) are recognized from cis-andean river systems: Brycon stolzmanni Steindachner, from the upper Río Marañon basin, Peru; Brycon coxeyi Fowler, from the Río Marañon basin, Ecuador and Peru; Brycon polylepis Moscó Morales, from the Lago de Maracaibo, Río Orinoco, upper rio Amazonas, and rio Tocantins basins, Venezuela, Colombia, Peru, and Brazil; Brycon coquenani Steindachner, from the upper Río Caroni, Río Orinoco basin, Venezuela; Brycon insignis Steindachner, from the rio Paraíba do Sul and small adjacent coastal river basins of eastern Brazil; Brycon vermelha Lima & Castro, endemic from the rio Mucuri basin, eastern Brazil; Brycon howesi new species, endemic from the rio Jequitinhonha basin, Brazil; Brycon dulcis new species, endemic from the rio Doce basin, eastern Brazil; Brycon ferox Steindachner, from several small coastal river systems, including the rio Mucuri basin in eastern Brazil; Brycon vonoi new species, from the rio Pardo basin and apparently also from a adjacent river system, the rio Una, in eastern Brazil; Brycon opalinus (Cuvier), from the headwaters of the rio Paraíba do Sul and rio Doce basins, eastern Brazil; Brycon nattereri Günther, from the headwaters of the upper rio Paraná, rio São Francisco, and upper rio Tocantins basins, Brazil; Brycon orthotaenia Günther, endemic from the rio São Francisco basin, Brazil; Brycon orbignyanus (Valenciennes), from the rio Paraná and rio Uruguai basins, Brazil, Paraguay, Argentina, and Uruguay; Brycon hilarii (Valenciennes), from the rio Paraguai, middle rio Paraná, and upper rio Amazonas basins, Brazil, Paraguay, Argentina, Peru, and Ecuador; Brycon whitei Myers & Weitzman, from the Río Orinoco basin in Colombia and Venezuela; Brycon amazonicus (Agassiz), from the Rio Amazonas and Río Orinoco basins, Brazil, Peru, Colombia, Bolivia, Venezuela, and Guyana; Brycon gouldingi Lima, endemic from the rio Tocantins basin, Brazil; Brycon melanopterus (Cope), from the western and central rio Amazonas basin, Brazil, Peru, Ecuador, and Colombia; and Brycon falcatus Müller & Troschel, widespread in the the rio Amazonas and Río Orinoco basins, and several guyanese river systems, in Brazil, Venezuela, Colombia, Peru, Bolivia, Guyana, Suriname, and French Guiana...
January 22, 2017: Zootaxa
https://www.readbyqxmd.com/read/28187628/an-analytical-review-of-halffter-s-mexican-transition-zone-and-its-relevance-for-evolutionary-biogeography-ecology-and-biogeographical-regionalization
#9
Gonzalo Halffter, Juan J Morrone
The Mexican transition zone (MTZ) is the complex area where the Neotropical and Nearctic biotas overlap, including south-western United States, Mexico and a large part of Central America extending to the Nicaraguan lowlands. In a strict sense, it corresponds to the mountain highlands of Mexico, Guatemala, Honduras, El Salvador and Nicaragua. We review Halffter's theory explaining the biotic evolution of the MTZ, including the description and discussion of the distributional patterns and cenocrons recognized within it...
January 25, 2017: Zootaxa
https://www.readbyqxmd.com/read/28185400/microdiversity-shapes-the-traits-niche-space-and-biogeography-of-microbial-taxa
#10
REVIEW
Alyse A Larkin, Adam C Martiny
With rapidly improving sequencing technologies, scientists have recently gained the ability to examine diverse microbial communities at high genomic resolution, revealing that both free-living and host-associated microbes partition their environment at fine phylogenetic scales. This "microdiversity," or closely related (>97% similar 16S rRNA gene) but ecologically and physiologically distinct sub-taxonomic groups, appears to be an intrinsic property of microorganisms. However, the functional implications of microdiversity as well as its effects on microbial biogeography are poorly understood...
February 10, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28183833/cytogeography-of-the-subalpine-marsh-marigold-polyploid-complex-caltha-leptosepala-s-l-ranunculaceae
#11
Keir M Wefferling, Sílvia Castro, João Loureiro, Mariana Castro, Daniela Tavares, Sara B Hoot
PREMISE OF THE STUDY: Unrecognized variation in ploidy level can lead to an underestimation of species richness and a misleading delineation of geographic range. Caltha leptosepala (Ranunculaceae) comprises a complex of hexaploids (6x), rare nonaploids (9x), and dodecaploids (12x), all with unknown distributions. We delineate the geographic distribution and contact zones of the cytotypes, investigate morphologies of cytotypes and subspecies, and discuss the biogeography and evolutionary history of the polyploid complex...
February 9, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28183106/systematics-and-biogeography-of-cuban-porcelain-crabs-decapoda-anomura-porcellanidae
#12
Yander L Diez, Carlos Lira
Marine crustaceans are a well-known invertebrates group in Cuban waters, but some taxa are not well catalogued and the literature about them is scattered. In this work, we present the checklist of porcelain crabs of Cuban Archipelago, including the literature registers and unpublished author's data. A key to the identification of 8 genera and 23 species of the Cuban porcelain crabs is provided. Information about the local distribution of species is presented. In addition, we analyzed the porcelain crab faunal affinities between the ecoregions of the Cuban platform, Greater Antilles islands and the Tropical Northwestern Atlantic (TNA) province...
January 10, 2017: Zootaxa
https://www.readbyqxmd.com/read/28182542/fireworks-algorithm-with-enhanced-fireworks-interaction
#13
Bei Zhang, Yu-Jun Zheng, Min-Xia Zhang, Sheng-Yong Chen
As a relatively new metaheuristic in swarm intelligence, fireworks algorithm (FWA) has exhibited promising performance on a wide range of optimization problems. This paper aims to improve FWA by enhancing fireworks interaction in three aspects: 1) Developing a new Gaussian mutation operator to make sparks learn from more exemplars; 2) Integrating the regular explosion operator of FWA with the migration operator of biogeography-based optimization (BBO) to increase information sharing; 3) Adopting a new population selection strategy that enables high-quality solutions to have high probabilities of entering the next generation without incurring high computational cost...
January 2017: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/28173059/phylogenomic-reconstruction-of-sportive-lemurs-genus-lepilemur-recovered-from-mitogenomes-with-inferences-for-madagascar-biogeography
#14
Runhua Lei, Cynthia L Frasier, Melissa T R Hawkins, Shannon E Engberg, Carolyn A Bailey, Steig E Johnson, Adam T McLain, Colin P Groves, George H Perry, Stephen D Nash, Russell A Mittermeier, Edward E Louis
No abstract text is available yet for this article.
March 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28172969/molecular-biogeography-of-prickly-lettuce-lactuca-serriola-l-shows-traces-of-recent-range-expansion
#15
Luigi D'Andrea, Patrick Meirmans, Clemens van de Wiel, Roberto Guadagnuolo, Robbert van Treuren, Gregor Kozlowski, Hans den Nijs, François Felber
No abstract text is available yet for this article.
March 1, 2017: Journal of Heredity
https://www.readbyqxmd.com/read/28170425/phylogeny-and-biogeography-of-the-amphi-pacific-genus-aphananthe
#16
Mei-Qing Yang, De-Zhu Li, Jun Wen, Ting-Shuang Yi
Aphananthe is a small genus of five species showing an intriguing amphi-Pacific distribution in eastern, southern and southeastern Asia, Australia, and Mexico, also with one species in Madagascar. The phylogenetic relationships of Aphananthe were reconstructed with two nuclear (ITS & ETS) and two plastid (psbA-trnH & trnL-trnF) regions. Clade divergence times were estimated with a Bayesian approach, and the ancestral areas were inferred using the dispersal-extinction-cladogenesis and Bayesian Binary MCMC analyses...
2017: PloS One
https://www.readbyqxmd.com/read/28168017/out-of-africa-biogeography-and-diversification-of-the-pantropical-pond-skater-genus-limnogonus-st%C3%A3-l-1868-hemiptera-gerridae
#17
Zhen Ye, Yahui Zhen, Yanyan Zhou, Wenjun Bu
Gondwanan vicariance, long-distance dispersal (LDD), and boreotropical migration have been proposed as alternative hypotheses explaining the pantropical distribution pattern of organisms. In this study, the historical biogeography of the pond skater genus Limnogonus was reconstructed to evaluate the impact of biogeographical scenarios in shaping their modern transoceanic disjunction. We sampled almost 65% of recognized Limnogonus species. Four DNA fragments including 69 sequences were used to reconstruct a phylogram...
February 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28160340/phylogeography-of-the-sergeants-abudefduf-sexfasciatus-and-a-vaigiensis-reveals-complex-introgression-patterns-between-two-widespread-and-sympatric-indo-west-pacific-reef-fishes
#18
Joris A M Bertrand, Philippe Borsa, Wei-Jen Chen
On evolutionary time scales, sea level oscillations lead to recurrent spatio-temporal variation in species distribution and population connectivity. In this situation, applying classical concepts of biogeography is challenging yet necessary to understand the mechanisms underlying biodiversity in highly diverse marine ecosystems such as coral reefs. We aimed at studying the outcomes of such complex biogeographical dynamics on reproductive isolation by sampling populations across a wide spatial range of a species-rich fish genus: the sergeants (Pomacentridae: Abudefduf)...
February 3, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28144180/the-amphibians-of-mount-oku-cameroon-an-updated-species-inventory-and-conservation-review
#19
Thomas M Doherty-Bone, Václav Gvoždík
Amphibians are a disproportionately threatened group of vertebrates, the status of which in Sub-Saharan Africa is still uncertain, with heterogeneous fauna punctuated by mountains. Mount Oku, Cameroon is one such mountain, which holds many endemic and restricted-range species. The history of amphibian research on Mt Oku, current knowledge on biogeography and conservation biology is reviewed, including recent findings. This updated inventory adds 25 further species, with 50 species of amphibian so far recorded to the Oku Massif (c...
2017: ZooKeys
https://www.readbyqxmd.com/read/28135081/bacterial-diversity-in-ships-ballast-water-ballast-water-exchange-and-implications-for-ship-mediated-dispersal-of-microorganisms
#20
Despoina S Lymperopoulou, Fred C Dobbs
Using next-generation DNA sequencing of the 16S rRNA gene, we analyzed the composition and diversity of bacterial assemblages in ballast water from tanks of 17 commercial ships arriving to Hampton Roads, Virginia (USA) following voyages in the North Atlantic Ocean. Amplicon sequencing analysis showed the heterogeneous assemblages were (1) dominated by Alpha- and Gammaproteobacteria, Bacteroidetes, and unclassified Bacteria; (2) temporally distinct (June vs August/September); and (3) highly fidelitous among replicate samples...
February 10, 2017: Environmental Science & Technology
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