El Ticuiz (spring 1)
Basic information
Sample name: El Ticuiz (spring 1)

Reference: J. A. Gómez-Anaya, R. Novelo-Gutiérrez, and A. Ramírez. 2013. Temporal variation in Odonata larval assemblage diversity in a lowland stream in western Mexico. Odonatologica 42(4):309-323 [ER 1097]
Country: Mexico
State: Michoacán

Coordinate: 18° 40' 24" N, 103° 40' 36" W
Basis of coordinate: stated in text
Geography comments: "near the seashore... in the municipality of Coahuayana"
Habitat: tropical/subtropical upland river
Altered habitat: plantation
Substrate: lake bottom/stream bed
MAT: 28.1
WMT: 34.0
CMT: 22.2
MAP: 969.0
Habitat comments: "a tropical climate with the rainy season during summer... Most of the original riparian vegetation has been replaced by banana plantations, and some segments of the water course are frequently altered by dredging. . In the surveyed segment no riffles were observed, only small, shallow runs (Fig. 1b). The substrate was predominantly composed of fine gravel and mud, and the aquatic vegetation was dominated by Eichhornia crassipes (Mart.), Potamogeton sp., Lemna gibba L., Pistia stratiotes (L.), and Typha latifolia L."
Life forms: odonates
Sampling methods: no design, other nets
Sample size: 669
Years: 2005
Days: 1
Sampling comments: "Larval sampling was conducted... using a D-frame aquatic net (0.2mm mesh). A total of 12 samples were taken on each occasion"
Sample: 1611
Contributor: John Alroy
Enterer: John Alroy
Created: 2015-05-29 19:15:04
Modified: 2016-10-21 15:44:34
Abundance distribution
21 species
12 singletons
total count 669
extrapolated richness: 56.8
Fisher's α: 4.121
geometric series k: 0.7391
Hurlbert's PIE: 0.5320
Shannon's H: 1.1291
Good's u: 0.9821
Each square represents a species. Square sizes are proportional to counts.