نتایج جستجو برای: biogeography

تعداد نتایج: 5670  

Journal: :iranian journal of ichthyology 0
hamid reza esmaeili department of biology, college of sciences, shiraz university, shiraz, iran. siavash babai ichthyology research laboratory, department of biology, college of sciences, shiraz university, shiraz, iran. ali gholamifard department of biology, faculty of sciences, lorestan university, 68135 khorramabad, iran. abdolrahim pazira departement of fisheries, bushehr branch, islamic azad university, bushehr, iran. ali gholamhosseini ichthyology research laboratory, department of biology, college of sciences, shiraz university, shiraz, iran. brian w. coad canadian museum of nature, ottawa, ontario, k1p 6p4 canada.

abstract: this study provides a new and updated checklist of the freshwater fishes of the persis region which drains to the persian gulf. the list is based on historical literature records and taxon occurrence data obtained from natural history collections and new fish collections. the confirmed freshwater fishes of the persis region (sub-basin) comprise 44 species in 34 genera, 14 families, 11...

Biogeography-Based Optimization (BBO) algorithm has recently been of great interest to researchers for simplicity of implementation, efficiency, and the low number of parameters. The BBO Algorithm in optimization problems is one of the new algorithms which have been developed based on the biogeography concept. This algorithm uses the idea of animal migration to find suitable habitats for solvin...

2015
Zuzana Musilová Oldřich Říčan Štěpánka Říčanová Petr Janšta Ondřej Gahura Jindřich Novák

We reconstruct the historical biogeography of cichlid fishes endemic to the trans-Andean region of NW South America. DNA sequences were used to study historical biogeography of the cichlid genera Andinoacara (Cichlasomatini) and Mesoheros (Heroini). Two eventbased methodological approaches, parsimony-based Statistical Dispersal-Vicariance Analysis (S-DIVA) and likelihood-based DispersalExtincti...

Journal: :Trends in ecology & evolution 2004
John J Wiens Michael J Donoghue

Ecology and historical (phylogeny-based) biogeography have much to offer one another, but exchanges between these fields have been limited. Historical biogeography has become narrowly focused on using phylogenies to discover the history of geological connections among regions. Conversely, ecologists often ignore historical biogeography, even when its input can be crucial. Both historical biogeo...

Journal: :iranian journal of ichthyology 0
hamid reza esmaeili department of biology, college of sciences, shiraz university, shiraz, iran. amineh khajepana ichthyology research laboratory, department of biology, college of sciences, shiraz university, shiraz, iran. hamidreza mehraban ichthyology research laboratory, department of biology, college of sciences, shiraz university, shiraz, iran. amir elmi department of environment, tehran, iran. hashem malekzehi departement of fisheries, bushehr branch, islamic azad university, bushehr, iran. abdolrahim pazira departement of fisheries, bushehr branch, islamic azad university, bushehr, iran.

this study presents, a comprehensive dataset that documents and provides a new and updated checklist of the freshwater fishes of the poorly known area of iran including makran and mashkid river basins in the east and south eastern iran. the list is based on historical literature records and taxon occurrence data obtained as a result of extensive field expeditions, examination of ichthyological ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Cyrille Violle Peter B Reich Stephen W Pacala Brian J Enquist Jens Kattge

Understanding, modeling, and predicting the impact of global change on ecosystem functioning across biogeographical gradients can benefit from enhanced capacity to represent biota as a continuous distribution of traits. However, this is a challenge for the field of biogeography historically grounded on the species concept. Here we focus on the newly emergent field of functional biogeography: th...

2005
Fredrik Ronquist

Historical biogeography can be divided into two subdisciplines: taxon biogeography and area biogeography. In the former we are interested in reconstructing the geographic distribution history of a particular group of organisms. Questions we may be interested in answering include: Where did the organisms originate? How did they colonize the areas in which they live today? When did they first com...

2012
BRIAN P. HEDLUND jAMES T.

The topic of microbial biogeography is almost 100 years old, however, when confronted with questions about the existence and extent of endemism in the microbial world, many microbiologists respond with opinions and theoretical arguments rather than examples of well-conducted studies. We begin this chapter with an overview of this debate as it ·applies to free-living prokaryotes in part because ...

2012
T. STALEY

The topic of microbial biogeography is almost 100 years old, however, when confronted with questions about the existence and extent of endemism in the microbial world, many microbiologists respond with opinions and theoretical arguments rather than examples of well-conducted studies. We begin this chapter with an overview of this debate as it ·applies to free-living prokaryotes in part because ...

Journal: :Int. J. Intelligent Computing and Cybernetics 2010
Hongwei Mo Lifang Xu

Biogeography-based optimization algorithm(BBO) is a new kind of optimization algorithm based on Biogeography. It is designed based on the migration strategy of animals to solve the problem of optimization. In this paper, a new algorithm-Biogeography Migration Algorithm for Traveling Salesman Problem(TSPBMA) is presented. Migration operator is designed. It is tested on four classical TSP problem...

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