This document discusses a study on phylogenetic diversity patterns in Neotropical amphibians. The study investigated the influence of pond characteristics like canopy cover, area, vegetation, and depth on lineage sorting in a pond tadpole metacommunity in southeast Brazil. Results showed that pond canopy cover had a strong filtering effect, influencing not only species but entire clades at deeper phylogenetic levels. This suggests differences in habitat use patterns among clades. Next steps include examining traits related to habitat use, morphology, and reproduction to determine which traits are being filtered.
Lucas Carlson, CEO and Founder of AppFog, discusses the company's flagship PaaS product, PHP Fog. Basic product overview including how to deploy and scale an application on PHP Fog.
365 Quran & Sunnah Selection For Daily Readingمحمد طیب
In the name of Allah, the Most Merciful, the Most Compassionate.
There are two important source of Islam one is Quran and the other is Hadith.
Quran - The Word of Allah
Hadith (Sunnah) - Sayings of Holy Prophet Muhammad (S.A.W)
365 Quran & Sunnah Selection for Daily Reading provides daily dose of spirituality, which is going to change your life, give you peace & direction in life InshaAllah.
Anas reported that the messenger of Allah (peace be upon him) said. "I have left among you two things; you will never go astray as long as you hold fast to them: the book of Allah and my Sunnah." (Hakim)
"Truly, in the messenger of Allah you have a good example to follow for the one who hopes for the meeting with Allah and the last day and remembers Allah much." [Quran Al-Ahzab: 21]
The Prophet (peace be upon him) said: "Convey from me even if one ayah (verse) for it may be that the one being informed will comprehend better that the one listening (at present)." (Al-Bukhari)
“If Allah wants to favor someone, He grants him comprehension (understanding) of this religion.” [Sahih Bukhari vol.1 # 71, Tirmidhi and Musnad Ahmad]
Any good is from Allah and any mistakes are from myself.
Este divertido cuento nos permite trabajar temas como: deducción, inferencia, anticipación, valor de la amistad, la importancia de los detalles y además introducir el concepto de resta y el conteo regresivo.
Winter can be seriously bad for your health. Find out what you should be looking out for and what precautions you can take to keep you and your family well this winter http://www.nhs.uk/staywell/
Lucas Carlson, CEO and Founder of AppFog, discusses the company's flagship PaaS product, PHP Fog. Basic product overview including how to deploy and scale an application on PHP Fog.
365 Quran & Sunnah Selection For Daily Readingمحمد طیب
In the name of Allah, the Most Merciful, the Most Compassionate.
There are two important source of Islam one is Quran and the other is Hadith.
Quran - The Word of Allah
Hadith (Sunnah) - Sayings of Holy Prophet Muhammad (S.A.W)
365 Quran & Sunnah Selection for Daily Reading provides daily dose of spirituality, which is going to change your life, give you peace & direction in life InshaAllah.
Anas reported that the messenger of Allah (peace be upon him) said. "I have left among you two things; you will never go astray as long as you hold fast to them: the book of Allah and my Sunnah." (Hakim)
"Truly, in the messenger of Allah you have a good example to follow for the one who hopes for the meeting with Allah and the last day and remembers Allah much." [Quran Al-Ahzab: 21]
The Prophet (peace be upon him) said: "Convey from me even if one ayah (verse) for it may be that the one being informed will comprehend better that the one listening (at present)." (Al-Bukhari)
“If Allah wants to favor someone, He grants him comprehension (understanding) of this religion.” [Sahih Bukhari vol.1 # 71, Tirmidhi and Musnad Ahmad]
Any good is from Allah and any mistakes are from myself.
Este divertido cuento nos permite trabajar temas como: deducción, inferencia, anticipación, valor de la amistad, la importancia de los detalles y además introducir el concepto de resta y el conteo regresivo.
Winter can be seriously bad for your health. Find out what you should be looking out for and what precautions you can take to keep you and your family well this winter http://www.nhs.uk/staywell/
Health Matters is a resource for professionals containing information, resources and tools to help you tackle a range of key public health issues. Visit: https://www.gov.uk/government/collections/health-matters-public-health-issues
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Phylogenies help to uncover diversity patterns in Neotropical amphibians
1. PHYLOGENIES HELP TO UNCOVER
DIVERSITY PATTERNS IN
NEOTROPICAL AMPHIBIANS
Diogo B. Provete
Universidade Federal de Goiás
Goiânia, GO, Brazil
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Introduction
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Recent interest in incorporating phylogenetic
information into measures of biological diversity
Rationale: Phylogeny as a multivariate proxy for
traits (assuming phylogenetic signal)
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Introduction
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Habitat filtering/species sorting => environmental
variables in ponds (e.g., pond canopy cover and
hydroperiod)
Wellborn et al. 1996; Skelly et al. 2002; Werner et al. 2007
4. Sciobt
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Pond canopy cover
Floating vegetation
Werner et al. 2007
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I investigated the influence of pond canopy cover,
pond area, floating vegetation, and depth on linage
sorting in a metacommunity of pond tadpoles in a
mountain environment in SE Brazil
13. Sciobt
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Discussion
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Canopy cover => strong filter not only for species
but also for entire clades, this influence is on
deeper levels of the phylogeny
Differences in habitat use patterns among clades
Next step: inclusion of traits related to habitat use,
morphology, and reproductive modes => what
traits are being filtered?
14. Thank you!
dbprovete@gmail.com
Web site => http://bit.ly/frogs_atbc
Student Travel Award
Editor's Notes
There’s a growing interest in incorporating phylogenetic information into measures of biological diversity and also in investigating diversity patterns as we saw this morning in the talk by Dr. Faith. The rationale for this is that phylogeny represents a multivariate proxy for trait diversity, as long we assume that there is phylogenetic signal in traits.
Concurrently, environmental gradients have been shown to influence species sorting in freshwater metacommunities, specially pond canopy cover and hydroperiod
For example, pond canopy cover can be viewed as a productivity gradient in which closed-canopy ponds represent harsh environments that hold low species diversity. But we don’t have a good idea of what is the importance of these factors in lineage filtering of freshwater organisms.
So I investigate …
I sampled tadpoles in 13 ponds in the Serra da Bocaina National Park in SE Brazil, at the boudary between the states od SP and RJ
From june 2008 to july 2009, ponds were arranged along a canopy cover gradient
This is the spatial arrangement of ponds
I built a phylogenetic super-tree for species occurring in this metacommunity based on previous phylogenetic purproses, which was dated using the bladj algorithim of the Phylocom software. Then I extracted a patristic distance matrix from this phylogeny.
I rely on recent techniques to relate phylogenetic structure at the metacommunity level to environmental gradients, largely developed by Leandro Duarte and colaborators
This procedures briefly as follows: the species distance matrix is converted into a squared matrix the depicts the degrees of belonging of species, which is then multiplied by a site by species matrix to give the phylogeny-weighted species composition matrix, from which a series of principal coordenate eigenvectors called PCPS are extracted after a PCoA analysis. After a selection, these eigenVectors are included in a db-RDA analysis as response variables along with environmental variables as predictor variables. So with this technique I could relate the phylogeentic metacommunity structure to environmental variables.
And this is what I got. The first two PCPS were selected to be used in the db-RDA, which explained about 52% of the variation in phylogenetic metacommunity structure. Basically, hylid lineages were associated with increasing % of pond canopy cover. Floating vegetation separated the two main hylid clades: Cophomantini and Dendropsophryni. Calamitophrynia, the remainig clade were associated with open areas
In Conclusion, pond canopy cover seems to have a profound effect on amphibian metacommunity structure and is a strong filter not only for species but also for entire clades. These results are mainly related to differences in habitat use among clades at the landscape level. I suggest the traits related to habitat use, morphology and reproductive modes should be included in further analyses to answer what specific traits are being filtered.