The Ecological Register

Reference: J. E. Carvajal-Cogollo and N. Urbina-Cardona. 2015. Ecological grouping and edge effects in tropical dry forest: reptile-microenvironment relationships. Biodiversity and Conservation 24:1109-1130 [ER 2257]

Comments on geographic location and chronology:

gardens, parks, and artificial waterways are inhabited areas

Protection: Fragment size:

Substrate: Lithology:

Taphonomic contexts:
cave fissure fill midden pitfall trap rock shelter settlement tar pit
aeolian deposit fluvial deposit lake deposit paleosol

Accumulation agents:
birds carnivores humans rodents

Archaeological features: bone tools buildings burials ceramics hearths
metal tools stone tools other artifacts other structures

Description of environmentlithology, taphonomy, and archaeology:

Life form (= organism) categories:

Life forms with no counts:

Focal species of study (if one):

Sites: Total site area (ha): ... or site length and width (m):

Counts are of

Sampled by during the year(s) over days

Nets or traps: Sum of days or nights left open:

Camera type: Cameras paired? Average spacing between traps (km):

First size range: to
Second size range: to

Enter two ranges if you will enter counts for different size classes. The first category should include either the smaller class or the entire sample. If the categories don't overlap, the first maximum should match the second minimum. Leave the maximum field(s) blank if no upper limit is defined.

Basal area

Comments on methods:

"For the selection of the fragments the criteria were: (1) the fragments must be completely surrounded by pasture matrix and create an abrupt contrast with the forest edge, (2) the size and shape of the fragments must be sufficient to set up at least two independent 250 x 50 m pasture-edge-interior gradients, perpendicular to and on either side of the physical edge of the fragment... A total of fifteen 250 x 50 m pasture-edge-interior forest gradients were set up... In each habitat (pasture, edge and interior) we set up four permanent linear transects 50 m in length and parallel to the dry forest edge at set distances in the pasture (-100, -65, -35 and -5 m), at the forest edge (1, 7, 14, 20 m) and in the forest interior (50, 85, 115, 150 m)... Data were collected twice during the wet season (May and August 2006) and once during the dry season (December 2006). Each gradient was sampled three times by one person for 8 h (0800–1,200 h and 1,800–2,200 h)... We surveyed the reptiles along the transects by visual encounter surveys (VESs)... All individuals were marked on the dorsum with distinguishable nail polish"

Current reference: Kowalski 1956 (ER 2370)

sampling design belt transect line transect quadrat timed no design	nets and sieves butterfly fyke harp hoop mist sweep other nets sieves Winkler
traps baited drift fences cage Elliott emergence funnel Havahart light malaise pan pitfall Sherman snap sticky Tomahawk UV light other traps	other auditory automatic cameras fogging hand capture owl pellets recordings road kill visual