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"Seashore ecology."
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Bloodworms and other wriggly beach dwellers
Hidden from view under the sand, a hunter is searching for a meal. It's a hungry bloodworm and it has spotted a tiny crab. Suddenly, an alien-like proboscis shoots from its head revealing four sharp fangs. The worm injects venom into its prey, paralyzing and killing the little crab. Then the bloodworm slurps up the crab's soft insides!
Book
The ecology of sandy shores
The Ecology of Sandy Shores provides the students and researchers with a one-volume resource for understanding the conservation and management of the sandy shore ecosystem. Covering all beach types, and addressing issues from the behavioral and physiological adaptations of the biota to exploring the effects of pollution and the impact of man's activities, this book should become the standard reference for those interested in Sandy Shore study, management and preservation. * More than 25% expanded from the previous edition* Three entirely new chapters: Energetics and Nutrient Cycling, Turtles and Terrestrial Vertebrates, and Benthic Macrofauna Populations * New sections on the interstitial environment, seagrasses, human impacts and coastal zone management* Examples drawn from virtually all parts of the world, considering all beach types from the most exposed to the most sheltered
eBook
Life between the tides
\"Adam Nicolson explores the marine life inhabiting seashore rock pools with a scientist's curiosity and a poet's wonder in this beautifully illustrated book. The sea is not made of water. Creatures are its genes. Look down as you crouch over the shallows and you will find a periwinkle or a prawn, a claw-displaying crab or a cluster of anemones ready to meet you. No need for binoculars or special stalking skills: go to the rocks and the living will say hello. Inside each rock pool tucked into one of the infinite crevices of the tidal coastline lies a rippling, silent, unknowable universe. Below the stillness of the surface course different currents of endless motion--the ebb and flow of the tide, the steady forward propulsion of the passage of time, and the tiny lifetimes of the rock pool's creatures, all of which coalesce into the grand narrative of evolution. In Life Between the Tides, Adam Nicolson investigates one of the most revelatory habitats on earth. Under his microscope, we see a prawn's head become a medieval helmet and a group of \"winkles\" transform into a Dickensian social scene, with mollusks munching on Stilton and glancing at their pocket watches. Or, rather, is a winkle more like Achilles, an ancient hero, throwing himself toward death for the sake of glory? For Nicolson, who writes \"with scientific rigor and a poet's sense of wonder\" (The American Scholar), the world of the rock pools is infinite and as intricate as our own. As Nicolson journeys between the tides, both in the pools he builds along the coast of Scotland and through the timeline of scientific discovery, he is accompanied by great thinkers--no one can escape the pull of the sea. We meet Virginia Woolf and her Waves; a young T. S. Eliot peering into his own rock pool in Massachusetts; even Nicolson's father-in-law, a classical scholar who would hunt for amethysts along the shoreline, his mind on Heraclitus and the other philosophers of ancient Greece. And, of course, scientists populate the pages; not only their discoveries, but also their doubts and errors, their moments of quiet observation and their thrilling realizations. Everything is within the rock pools, where you can look beyond your own reflection and find the miraculous an inch beneath your nose. \"The soul wants to be wet,\" Heraclitus said in Ephesus twenty-five hundred years ago. This marvelous book demonstrates why it is so.\" -- Provided by publisher
Book
The role of dispersal mode and habitat specialization for metacommunity structure of shallow beach invertebrates
Metacommunity ecology recognizes the interplay between local and regional patterns in contributing to spatial variation in community structure. In aquatic systems, the relative importance of such patterns depends mainly on the potential connectivity of the specific system. Thus, connectivity is expected to increase in relation to the degree of water movement, and to depend on the specific traits of the study organism. We examined the role of environmental and spatial factors in structuring benthic communities from a highly connected shallow beach network using a metacommunity approach. Both factors contributed to a varying degree to the structure of the local communities suggesting that environmental filters and dispersal-related mechanisms played key roles in determining abundance patterns. We categorized benthic taxa according to their dispersal mode (passive vs. active) and habitat specialization (generalist vs. specialist) to understand the relative importance of environment and dispersal related processes for shallow beach metacommunities. Passive dispersers were predicted by a combination of environmental and spatial factors, whereas active dispersers were not spatially structured and responded only to local environmental factors. Generalists were predicted primarily by spatial factors, while specialists were only predicted by local environmental factors. The results suggest that the role of the spatial component in metacommunity organization is greater in open coastal waters, such as shallow beaches, compared to less-connected environmentally controlled aquatic systems. Our results also reveal a strong environmental role in structuring the benthic metacommunity of shallow beaches. Specifically, we highlight the sensitivity of shallow beach macrofauna to environmental factors related to eutrophication proxies.
Journal Article
What do you find in a tide pool?
\"Tide pools form from water left on rocky shores when the tide withdraws. From seaweed and sea snails to shore crabs and seabirds, readers will discover some of the plants and animals that live in and around these ever-changing ecosystems\"-- Provided by publisher.
Book
The optimal sampling design for littoral habitats modelling: A case study from the north-western Mediterranean
Species distribution models (SDMs) have been used to predict potential distributions of habitats and to model the effects of environmental changes. Despite their usefulness, currently there is no standardized sampling strategy that provides suitable and sufficiently representative predictive models for littoral marine benthic habitats. Here we aim to establish the best performing and most cost-effective sample design to predict the distribution of littoral habitats in unexplored areas. We also study how environmental variability, sample size, and habitat prevalence may influence the accuracy and performance of spatial predictions. For first time, a large database of littoral habitats (16,098 points over 562,895 km of coastline) is used to build up, evaluate, and validate logistic predictive models according to a variety of sampling strategies. A regularly interspaced strategy with a sample of 20% of the coastline provided the best compromise between usefulness (in terms of sampling cost and effort) and accuracy. However, model performance was strongly depen upon habitat characteristics. The proposed sampling strategy may help to predict the presence or absence of target species or habitats thus improving extensive cartographies, detect high biodiversity areas, and, lastly, develop (the best) environmental management plans, especially in littoral environments.
Journal Article
