caught by a predator. It is easy to see how pruning of marginal individuals can maintain centripetal instincts in already gregarious species; some evidence that marginal pruning actually occurs is summarized. Besides this, simply defined models are used to show that even in non-gregarious species

In order to maintain pond-breeding amphibian species richness, it is important to understand how both natural and anthropogenic disturbances affect species assemblages and individual species distributions both at the scale of individual ponds and at a larger landscape scale. The goal

developed could be used a) to evaluate the functionality of individual detention pond b) to analyze the benefits of such structures at

Plankton occupies a significant position in the food web of lentic ecosystem. They play a central role in cycling organic matter in aquatic ecosystem. The abundance of plankton depends on the various hydrological variables. During our investigation on two adjacent ponds, 14 taxa of zooplankton, i

Targeting genomic loci by massively parallel sequencing requires new methods to enrich templates to be sequenced. We developed a capture method that uses biotinylated RNA “baits ” to “fish ” targets out of a “pond ” of DNA fragments. The RNA is transcribed from PCR-amplified oligodeoxynucleotides

determining habitat suitability is a pond’s hydroperiod. The objective of this research was to develop a method for estimating pond hydroperiod from site characteristics such as pond morphology, geology, chemistry, and vegetation structure, and to use the estimates to assess the suitability of individual

. The herbaceous, macrophyte species were recorded for each pond. High numbers of species were associated with large, unshaded ponds with a moderate amount of open water. Some of the common individual species showed positive associations with certain physical characteristics of the ponds. 41 % of the ponds

In order to maintain pond-breeding amphibian species richness, it is important to understand how both natural and anthropogenic disturbances affect species assemblages and individual species distributions both at the scale of individual ponds and at a larger landscape scale. The goal

Abstract.–The growth of young-of-the-year bluegills Lepomis macrochirus was measured in six experimental ponds and simulated with an individual-based model. In the ponds the young bluegills grew at a rate of about 0.6 mm/d for 3-4 weeks. An abrupt reduction in growth rate to about 0.2 mm/d occurred

). The algae constituted pelagic and epilithic communities in the ponds. The diatoms were the most noticable algae in both communities and Nitzschia spp. were the most conspicuous algae followed by Navicula spp. and Cymbella spp. with respect to the frequency of occurrence and number of individuals in all