Joya-Barreta Ecological Park
Basic information
Sample name: Joya-Barreta Ecological Park

Reference: M. Rocha-Ortega and G. Castaño-Meneses. 2015. Effects of urbanization on the diversity of ant assemblages in tropical dry forests, Mexico. Urban Ecosystems 18:1373-1388 [ER 2260]
Geography
Country: Mexico

State: Querétaro


Coordinate: 20° 37' N, 100° 28' W
Coordinate basis: stated in text

Geography comments: in "Santiago de Querétaro, Querétaro"

Environment
Habitat: tropical/subtropical dry broadleaf forest

Substrate: ground surface

Habitat comments: 245 ha "Recreational forest fragment"; perturbation is "Low, the park is heavily used by a variety of educational groups, hikers, and mountain bikers, since 2003"

Methods
Life forms: ants

Sampling methods: line transect,baited,pitfall traps,other traps,hand capture

Sample size: 158 individuals

Years: 2004, 2005

Sampling comments: "samples were collected two times a month, from December 2004 to December 2005, along a linear transect of 100 m. For each collection we used traps baited with protein (tuna) or carbohydrates (peanut butter) and pitfall traps, in addition to leaf litter samples and manual collections. In total, 24 samples per site were collected in a year... We used 16 baited traps in 4 vertical strata for each site: 4 in soil (2 traps baited with tuna and two baited with peanut butter), 8 in the scrub layer (4 baited with tuna and 4 with peanut butter) and 4 in the canopy layer (2 baited with tuna and two with peanut butter). The baited traps were installed in the morning and left for 24 h. A total of 1 536 baited traps were used in the study (16 traps×4 sites×24 survey samples). The pitfall traps consisted of plastic 250 ml cups filled with antifreeze placed at ground level for 15 days. Four pitfall traps were used for each site, for a total of 384 traps (4 traps×4 sites×24 survey samples). In addition, every 15 days we collected 4 leaf litter samples (1 m2) per site, which were subsequently placed in Berlese funnels (Martin 1977), resulting in a total of 480 litter samples. Finally, we performed manual collections of 20 min durations every 15 days, for a total of 32 h of observation"

Metadata
Sample number: 2334

Contributor: John Alroy

Enterer: John Alroy

Created: 2016-10-26 19:21:33

Modified: 2016-10-26 08:21:33

Abundance distribution
27 species
9 singletons
total count 158
geometric series index: 55.2
Fisher's α: 9.364
geometric series k: 0.8774
Hurlbert's PIE: 0.8985
Shannon's H: 2.6676
Good's u: 0.9435
Each square represents a species. Square sizes are proportional to counts.
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