habitat fragmentation management through agroforestry

[Hanh-2]

Hi

Does anyone know how to approch a resarch study on how agroforestry
could stop habitat fragmentation? or, How agrofrestry corridors could be
use to connect fragmented patches? Any information would be helpful!!!

Thank you

Juan Durango
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[Dimos]

Hello Juan,

>From a spatial point of view, look at the fragstats software and r.le programs.

You could design the corridors created by your interventions at the landscape (that is create an imaginary GIS dataset with your agroforestry regime).
Then run the landscape homogeneity tests for the current, and the future landscape. The index values could provide an indicator of the effect of your interventions.

Hope this helps,

Dimos

--
Dimos P. Anastasiou

--- On Mon, 10/19/09, Hanh <gast7@...> wrote:

> From: Hanh <gast7@...>
> Subject: [Agroforestry] habitat fragmentation management through agroforestry
> To: ag-forst@...
> Date: Monday, October 19, 2009, 4:08 PM
> Hi
>
> Does anyone know how to approch a resarch study on how
> agroforestry could stop habitat fragmentation? or, How
> agrofrestry corridors could be use to connect fragmented
> patches? Any information would be helpful!!!
>
> Thank you
>
> Juan Durango
> _______________________________________________
> Ag-forst mailing list
> Ag-forst@...
> http://www.bio.net/biomail/listinfo/ag-forst
>

_______________________________________________
Ag-forst mailing list
Ag-forst@...
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[Gerry Lawson]

Hi Juan - have a look at the EU Greenveins project - it looked at the
biodiversity impact of strips of trees/hedges in around 25 field sites.  Put
"greenveins" into google for related presentations - the main site seems to
be down at present.

Gerry Lawson (gela@...)

-----Original Message-----
From: ag-forst-bounces@...
[mailto:ag-forst-bounces@...] On Behalf Of Dimos
Sent: 19 October 2009 17:16
To: ag-forst@...; Hanh
Subject: Re: [Agroforestry] habitat fragmentation management through
agroforestry

Hello Juan,

>From a spatial point of view, look at the fragstats software and r.le
programs.

You could design the corridors created by your interventions at the
landscape (that is create an imaginary GIS dataset with your agroforestry
regime).
Then run the landscape homogeneity tests for the current, and the future
landscape. The index values could provide an indicator of the effect of your
interventions.

Hope this helps,

Dimos

--
Dimos P. Anastasiou

--- On Mon, 10/19/09, Hanh <gast7@...> wrote:

> From: Hanh <gast7@...>
> Subject: [Agroforestry] habitat fragmentation management through
agroforestry

> To: ag-forst@...
> Date: Monday, October 19, 2009, 4:08 PM
> Hi
>
> Does anyone know how to approch a resarch study on how
> agroforestry could stop habitat fragmentation? or, How
> agrofrestry corridors could be use to connect fragmented
> patches? Any information would be helpful!!!
>
> Thank you
>
> Juan Durango
> _______________________________________________
> Ag-forst mailing list
> Ag-forst@...
> http://www.bio.net/biomail/listinfo/ag-forst
>

_______________________________________________
Ag-forst mailing list
Ag-forst@...
http://www.bio.net/biomail/listinfo/ag-forst

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[Nigel Austin]

Hello Juan,

 

Some necessary background research may be necessary in order to adequately negate the effects of fragmentation. The greatest consequences of fragmentation are geographic isolation, reduced population size and restricted gene flow; the results of which are usually lowered genetic diversity and genetic drift which may lead to genetic erosion. Negating these effects using agroforestry is one way to solve this problem.

 

However some important background information may be necessary. Is the fragmented species in question a natural inbreeder or out breeder? What is the pollination syndrome of the species? What is the extent of pollen and seed dispersal? Are the other plants in the agroforestry system creating a suitable habitat to facilitate pollinators between fragments. What is the current state of genetic diversity and divergence present in the patches? Would increasing population size by introduction of new individuals/seeds be more effective instead of trying to bridge populations?

 

I believe that answering some of these questions are important. It may not make a lot of sense bridging two fragments if they contain and maintain the same level of diversity or use an agroforestry system that may be unfriendly to your pollinator(s).

 

Regards,

Nigel



"A man's ethical behaviour should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death."
-Albert Einstein


 

> From: gast7@...
> Date: Mon, 19 Oct 2009 15:08:53 +0200
> To: ag-forst@...
> Subject: [Agroforestry] habitat fragmentation management through agroforestry
>
> Hi
>
> Does anyone know how to approch a resarch study on how agroforestry
> could stop habitat fragmentation? or, How agrofrestry corridors could be
> use to connect fragmented patches? Any information would be helpful!!!
>
> Thank you
>
> Juan Durango
> _______________________________________________
> Ag-forst mailing list
> Ag-forst@...
> http://www.bio.net/biomail/listinfo/ag-forst

     
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