Luís Quinta-Nova

14 Questions 18 Answers 0 Followers

Questions related from Luís Quinta-Nova

How to calculate diversity metrics using "analysis by regions" in Patch Analyst extension for ArcMap?

I used the tool "Spatial analysis by regions", available in Patch Analyst extension for ArcMap, in order to conduct landscape level analyses on polygon layers for individual polygon regions. As a...

02 March 2023 8,185 3 View

Where can I find vegetation-plot databases for Portugal?

During the last years many electronic databases of vegetation plots, mainly phytosociological relevés, were established in different European countries. These databases contain information...

29 May 2019 3,080 4 View

Can anyone tell me if the PCDEQ (Psychological Characteristics of Developing Excellence Questionnaire) is available in Portuguese or Spanish?

I intend to use the Psychological Characteristics of Developing Excellence Questionnaire (PCDEQ), developed and validated by MacNamara & Collins (2011, 2013), in a study in Portugal. In order to...

19 December 2017 4,164 3 View

Which are the methods to validate the results of an AHP and the criteria to choose one?

We need to know how to choose an appropriated validation method to apply to the results of an Analytic Hierarchy Process.

14 February 2017 430 11 View

Does anyone knows where I can find some information about new crops adapted to the mediterranean climate supported by the European Union?

The Mediterranean basin has long been a site of temperate fruit and nut production. Currently, new agricultural cultures like pistachio (Pistacia vera), a small tree originating from Central Asia...

31 March 2016 7,075 4 View

Which is the best method to quantify the economical impact of a medium/large scale outdoor sporting event?

Next year will be held in portugal a orienteering event with approximately 2000 participants. In order to measure the impact over the local economy of a rural county we need to chose a methodology...

24 December 2015 3,628 6 View

What should be taken into account to reclassify factor (criteria) maps in the aim of the Analytical Hierarchy Process (AHP)?

In Analytic Hierarchy Process (AHP), after an initial stage of data collection, the next step is related to GIS analysis, and focuses on converting collected vector maps to raster and spatial...

27 August 2015 1,286 11 View

How can we define the best cell size according to the niche or range limits of a given species in Landscape Ecology studies?

The type and number of variables comprising the dimensions of an environmental niche vary from one species to another and the relative importance of particular environmental variables for a...

25 May 2015 1,886 9 View

Which is the best method to measure the solar radiation that passes through a forest canopy?

Some herbaceous plants in the understory of forests are dependent of the quantity of light that are not intercepted by the forest canopy in order to flourish and have seeds to sexually propagate;...

29 November 2014 5,466 17 View

Does anyone know an extension of AHP that works in ArcMap 10.2?

The Analytic Hierarchy Process (AHP) was introduced by Saaty (1977) and is a very popular means to calculate the needed weighting factors by help of a preference matrix where all identified...

31 October 2014 3,341 13 View

Does anybody know a taxonomic review of Asphodelus bento-rainhae? Or, at least, a peer reviewed paper about the species?

There are two subspecies: Asphodelus bento-rainhae ssp. bento-rainhae is found in Portugal and Asphodelus bento-rainhae ssp. salmanticus is present in Spain. The two subspecies are not closely...

22 August 2014 743 6 View

Which are the best methods to measure the impact of Orienteering and other off-track outdoor sports on plant communities?

Orienteering is a sport which takes place largely off-track in terrain which often has conservation value. This gives rise to concern amongst protected areas' managers and ecologists about the...

29 January 2014 6,999 2 View

Which are the best methods to measure the impact of Orienteering on nesting bird communities?

Orienteering is a sport which takes place largely off-track in terrain which often has conservation value. This gives rise to concern amongst ecologists that there is the potential for damage to...

24 March 2013 1,762 2 View

Can anyone help us to find detailed information about limiting factors affecting distribution of strawberry tree (Arbutus unedo) in Iberian Peninsula?

We are preparing a project that intends to study how the climate change affects the distribution of Arbutus unedo, but the literature that we found about environmental factors affecting the...

01 January 1970 7,634 3 View