Niche relationships in the Genus Valleriola Distant (Hemiptera : Leptopodidae).

Date

3-1978

Degree

Bachelor of Science in Biology

Major Course

Major in Ecology Genetics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Victor P. Gapud

Abstract

Valleriola buenoi and V. mindorana were found to "coexist" on the same rock surface in the same area at the same time in Molawin Creek, Los Baños, Laguna. A closer examination of their niche relationships revealed varying degrees of habitat in favorable areas. Differences in dispersal patterns, dispersion, behavioral patterns, and microclimatic factors influencing fluctuation in their populations reveal a well-defined of niche divergence as an explanation for their coexistence. Elevation, rock size, and vegetation cover strongly determine their presence in streams. Observed mating preference for members of the same species demonstrates distinctness of V. buenoi and V. mindorana. Reproductive isolation is reinforced by strong morphological differences between the two species.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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