Author: Edmond C. MoutonPublisher:
ISBN:
Category : Fiddler crabs
Languages : en
Pages : 118
Book Description
Population Ecology of Two Fiddler Crab Species, Uca Spinicarpa and Uca Longisignalis, in a Louisiana Salt Marsh
Author: Edmond C. MoutonPublisher:
ISBN:
Category : Fiddler crabs
Languages : en
Pages : 118
Book Description
Aspects of Population Ecology in Two Populations of Fiddler Crabs, Uca Pugnax
Author: Lauren L. BergeyEcology Abstracts
Author: Publisher:
ISBN:
Category : Ecology
Languages : en
Pages : 404
Book Description
Coverage: 1982- current; updated: monthly. This database covers current ecology research across a wide range of disciplines, reflecting recent advances in light of growing evidence regarding global environmental change and destruction. Major ares of subject coverage include: Algae/lichens, Animals, Annelids, Aquatic ecosystems, Arachnids, Arid zones, Birds, Brackish water, Bryophytes/pteridophytes, Coastal ecosystems, Conifers, Conservation, Control, Crustaceans, Ecosyst em studies, Fungi, Grasses, Grasslands, High altitude environments, Human ecology, Insects, Legumes, Mammals, Management, Microorganisms, Molluscs, Nematodes, Paleo-ecology, Plants, Pollution studies, Reptiles, River basins, Soil, TAiga/tundra, Terrestrial ecosystems, Vertebrates, Wetlands, Woodlands.
Density, Shell Use and Species Composition of Juvenile Fiddler Crabs (Uca Spp.) at Low and High Impact Salt Marshes on Georgia Barrier Islands
Author: Michelle D. CarlsonPublisher:
ISBN:
Category :
Languages : en
Pages : 57
Book Description
Author's abstract: Purpose: Coastal wetlands offer refuge for juveniles of many species, with protection often coming in the form of dense vegetation. Human impacts have led to a 67% loss of coastal wetlands worldwide in the past 300 years, thus decreasing available refuges. There are no studies that show what affect this has on fiddler crabs (Uca spp.), a key species in salt marsh habitats. The present study looks at how human impacts are affecting juvenile fiddler crab densities, shell use, and species compositions. This study was conducted at 3 low and 3 high impact sites on Tybee and Skidaway Island, Georgia. Six collection trips were completed from June to August 2010 to each of the 6 sites. During each trip ten quadrats (1m 2) were placed at each site, and juvenile fiddler crab densities, Littoraria irrorata shell availability, and percent shell use were recorded. In the lab, juvenile fiddler crab carapace width and sex were determined and multiplex PCR was used to identify juvenile fiddler crab species. Juvenile fiddler crab densities were lower at high impact sites, while shell availability and shell use were similar at both low and high impact sites. Juvenile fiddler crab sizes and sex ratios did not differ between low and high impact sites on the substrate, nor did the sex ratios in shells. However low impact sites had significantly larger juvenile fiddler crabs found in shells as compared to high impact sites. Species compositions differed between low and high impact sites on the substrate and in shells, with an increase in Uca pugilator and U. minax at high impact sites. Impacts to salt marshes can cause a decrease in available refuge for juvenile fiddler crabs which could lead to higher mortality rates and an overall decrease in juvenile fiddler crab densities. Fiddler crabs are important in aerating the soil, soil drainage, and decomposition rates. A change in fiddler crab densities and behavior can have an adverse affect to the salt marsh and could lead to the loss of an important ecosystem.
Aquatic Sciences and Fisheries Abstracts
Author: Atlantic Marsh Fiddler
Author: Behavioral Ecology and Population Biology in Populations of of Fiddler Crabs, Uca Pugnax (Smith), on the New Jersey Coast
Author: Lauren L. BergeyPublisher:
ISBN:
Category : Aquatic ecology
Languages : en
Pages : 268
Book Description
The Thermal Ecology of Two South Florida Fiddler Crabs, Uca Rapax Smith and Uca Pugilator Bosc
Author: William Kirby SmithPublisher:
ISBN:
Category : Crabs
Languages : en
Pages : 242
Book Description
Behavioral Variation in Natural Populations of Two Species of Fiddler Crabs (Uca) and Some Preliminary Observations on Directed Modifications
Author: Ecological and Life History Aspects of the Red-jointed Fiddler Crab
Author: Ellen H. GrayPublisher:
ISBN:
Category : Chesapeake Bay
Languages : en
Pages : 24
Book Description