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Reproductive isolation and genetic differentiation in North American species of Triops (Crustacea: Branchiopoda: Notostraca)
Electrophoretic analysis of 31 populations, ranging from California to Kansas, indicates that the North American tadpole shrimp Triops longicaudatus (LeConte) is actually a mixture of at least two…
Species richness, endemism and ecology of crustacean assemblages in northern California vernal pools
This survey surveyed 58 vernal (ephemeral spring-time) pools from 14 sites in northern California for crustaceans, and found diverse assemblages composed largely of endemic and rare species.
DIVERSIFIED BET-HEDGING AS A REPRODUCTIVE STRATEGY OF SOME EPHEMERAL POOL ANOSTRACANS (BRANCHIOPODA)
The hatching patter n of two pecies of an ost raca ns found in un predictabl e vernal pool s in southe rn California, U.S.A., Branch in ecta sandiegonensis Fu gate and Streptoceph alus woott oni Eng et a l.
DIFFERENTIAL SELECTION TO AVOID HYBRIDIZATION IN TWO TOAD SPECIES
Examination of the frequency and fitness effects of hybridization between plains spadefoot toads and New Mexico spade foot toads suggests that, although S. multiplicata females are under selection to avoid hybridization, selection might favor those S. bombifrons females that hybridize with S.multiplicata if their breeding pond is highly ephemeral.
Species richness on islands in time: variation in ephemeral pond crustacean communities in relation to habitat duration and size
The data provide further evidence that species sorting on pond permanence is an important factor structuring temporary pond crustacean communities, and the assumption that dispersal is not limiting still needs to be tested.
Population genetic structure of a California endemic branchiopod, Branchinecta sandiegonensis
- Cathleen P. Davies, M. Simovich, S. Hathaway
- Environmental Science, BiologyHydrobiologia
- 1 December 1997
Low genetic variability and high genetic structure may result from low gene flow and founder effects due to habitat fragmentation and the lack of potential vectors for cyst dispersal and the unpredictable rainfall of the region also creates potential for variable population sizes.
Factors Affecting the Distribution and Co-Occurrence of Two Southern Californian Anostracans (Branchiopoda), Branchinecta Sandiegonensis and Streptocephalus Woottoni
It is shown that temperature play s a role in re stri cting the distribution of the se species to the coast, where temperatures are favorable.
Four independent electrophoretic markers in spadefoot toads.
Electrophoretic typing is useful for the assessment of introgression and the evaluation of reproductive interaction in these species, even though it slightly underestimates backcross offspring.
Cyst bank life-history model for a fairy shrimp from ephemeral ponds
Variation in age within the egg bank appears to be critical for the persistence of the population, and this attribute needs to be carefully considered when restoring or creating new pools for conservation purposes.
Resilience of anostracan cysts to fire
California's Mediterranean ecosystems include shrubland and grassland vegetation types that are fire-prone. Dotted within this landscape are ephemeral wetlands called vernal pools. Since surrounding…