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The fern species in Florida that are rare and possibly extinct are also included. Lamoureux, G. Plantes sauvages des lacs, rivieres et tourbieres. Wild plants of lakes, rivers and peat bogs. Very nice photographs and distribution maps for North America are included in this identification guide. Text in French. Langeland, K. Burks, EDS. University of Florida, Gainesville, pp.

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Cherry, C. McCormick, and K. Burks Thousands of nonnative plants have been introduced into Florida, many of great benefit to us. However, some have become established in expanding populations within native plant communities where they threaten natural processes. The authors identify nonnative plant species that occur in natural areas and provide an extensive literature review of each species.

This field guide, designed to assist natural area managers in recognizing nonnative and invasive plant species on lands that they manage will also be of use to naturalists, horticulturists, landscapers, and gardeners. Complimented by over photographs, the descriptions provide plant identification characteristics, plus details on their ecological significance, distribution, and life history.

Larson, G. Station, pp. A taxonomic treatment of over aquatic and wetland plant species of the northern Great Plains region. Keys, botanical descriptions, illustrations and some photographs, geographic range and habitat preferences, distributional maps and more are included. Adequate drawings are, unfortunately, not well reproduced but still are useful. Lassiter, B. Richardson, G. It also has information on morphology, habitat, and human health concerns.

It is spiral-bound and waterproof. Leach, G. Freshwater Plants of Papua New Guinea. University of Papua New Guinea Press. Lee, R. Phycology Fourth Edition. Cambridge University Press, Cambridge, U. Leigh, M. Washington State University, Olympia. Descriptions of more than 90 native plants suitable for growing in Washington state are included.

It may be the best basic handbook on collecting and growing native plants that the APIRS library has. Lellinger, D. Smithsonian Institute Press, Washington, D. Lindstrom, L. Long, R. Lot, A. In Spanish. Lui, K. Butler, M. Allen, J. DaSilva, et al. Field Guide to Aquatic Invasive Species: Identification, collection and reporting of aquatic invasive species in Ontario waters. Ontario Ministry of Natural Resources, Canada. Identifies over 50 species of aquatic invasive species plants, fish and invertebrates using water-proof paper bound with rings. Magee, D. University of Massachusetts Press, Amherst.

This book features botanical keys and nice line drawings and contains a list of rare and uncommon wetland plants. Martin, A.

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The identification, value, range, and propagation of approximately 45 principle duck foods. Black and white photographs. Mason, H. A Flora of the Marshes of California. University of California Press, Berkeley. Botanical Keys, finely detailed line drawings, a good glossary and an illustrated key to monocotyledons and dicotyledons complete this extensive volume. Masser, M. Aquatic Vegetation Identification Cards. There is no textual description. The arrangement of the identification card deck is by color-coded sections: algal plants, floating plants, submerged plants, emergent plants.

Non-native plants are labeled.

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May, M. Grosso, J. Early detection of invasions can save vast amounts of labor and money…These plants are considered by Bay-Delta invasive plant experts to represent some of the most significant threats to Bay and Delta waterways and wetlands. Background information such as identification, growth and spread, habitat and local distribution, and impacts is provided as well as prevention and control information such as manual or mechanical control, biological control and chemical control.

Color photographs are helpful in recognizing the plant and its habitat. McPherson, S. Pitcher Plants of the Americas. Miller, J. It also lists other nonnative invasive plants that are of growing concern. Miller, M. Songer, R. Wisconsin is home to 84, miles of streams and this field guide is useful for learning about the animals and identifying the plants in Wisconsin streams.

A collaborative effort by dozens of biologists and ecologists, Field Guide to Wisconsin Streams is of value to anglers, teachers and students, amateur naturalists, and experienced scientists alike. More than 1, images illustrate the species in the field guide, augmented by ecological and taxonomic notes, descriptions of look-alike species, and distribution maps. The guide identifies more than common plants, all fishes known to inhabit Wisconsin streams, 8 crayfishes, 50 mussels, 10 amphibians, 17 reptiles, 70 families of insects, and, other commonly found invertebrates.

Minnesota Department of Natural Resources. Paul, Minnesota; 75 PP. The 39 non-native terrestrial plants are classified as woody, herbaceous, or grasses. There is a thumbnail sketch of each plant with suggested control methods and color photograph which help in identification and serve to inform management decisions.

The ecological threats of each plant are enumerated that frequently include introduced ornamentals that are now invading natural areas. Mohlenbrock, R. Southern Illinois University Press, Carbondale. Rather than integrating new information into the first edition, the original keys are left in their first edition pages, along with the original plant descriptions and distribution maps.

The new keys, new discoveries, nomenclatural changes and distribution additions are tacked on at the end of the book, making it rather confusing for the unsuspecting user. Moldenke, H. Plants of the Bible. Chronica Botanica Co. Peter Toghill. Will Benson.

Landscape Detailing Volume 4. Michael Littlewood. Oliver Rackham. Tom Grant. Plants: From Roots to Riches. Kathy Willis. A Handbook of Scotland's Trees. Fi Martynoga. Australian Planting Design. Paul Thompson. Nature in the Kawarthas. Peterborough Field Naturalists. Damian Michael. Australian Soils and Landscapes. Neil McKenzie. Native Mice and Rats. Bill Breed.


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Dinosaurs in Australia. Benjamin P Kear. The World of Kew. Carolyn Fry. Rosemary Parslow. The Fossil Detectives. Douglas Palmer. Australia's Fossil Heritage. The Australian Heritage Council. Stefan Buczacki. What Makes a Good Farm for Wildlife? David B Lindenmayer. Wetland Habitats.

L – R – UF/IFAS Center for Aquatic and Invasive Plants

Nick Romanowski. Woodland Management. Chris Starr. The Natural History of Moths. Mark Young. Wildlife on Farms. Andrew Claridge. No Nettles Required. A Fairweather Eden. Michael Pitts. Peter A. Christopher N. Coastal Plants. Kingsley Dixon. Trevor Beebee. British Isles. Alan Titchmarsh. Planting for Wildlife. Nicola Munro. Grassfinches in Australia. Anthony Pridham.

Bettongs, Potoroos and the Musky Rat-kangaroo. Edible Wild Plants. John Kallas. E-mail address: j. Jeffrey A. Email: j. Use the link below to share a full-text version of this article with your friends and colleagues. Learn more. Organisms that invade new habitats exploit new resources or niches and influence native species. Here, we examine how an invasive moth, the parsnip webworm Depressaria radiella , formerly D. We compare this with results on small hogweed Heracleum sphondylium in the Netherlands, where both the plant and herbivore are native.

Larvae of D. Mature caterpillars descend the hollow stems into which they chew a hole, enter the stem and pupate. Other arthropods enter the stems through these holes. The woodlouse, Porcelio scaber , which is native to Eurasia but also established in the United States, was abundant in stems of Dutch hogweeds but absent in stems of American cow parsnips.

Other native herbivores e. Moreover, the number of various arthropods found in perforated stems correlate positively with the number of holes found in these stems.

alien plants

Although most introductions fail to establish or the invader remains rare and unobtrusive in its new home, a small number of species become invasive pests in their new range. However, in some situations, a small number of invasive species are able to integrate well into their new habitats with negligible or even positive impacts.

For example, some species have been deliberately introduced because they perform a vital ecosystem service, such as pollination or biological control of pests Kenis et al. In spring, larvae of Pseudotelphusa sp. After pupating, the abandoned shelters are used by a diverse range of other insects as protection against rain and desiccation. For example, Tischler showed that feeding damage by deer opens the hollow stems of reeds and thistles and that these stems are then colonized by insects. Harvey, Ode, Malcicka, and Gols found that many small hogweed Heracleum sphondylium plants Figure 1 a were infested by larvae of the parsnip webworm.

Depressaria radiella formerly D. When they are mature, webworm larvae crawl down the stems of their food plants, chew a hole in them and enter the hollow stems where they pupate. Some of the larvae, however, are parasitized during the egg stage by the polyembryonic parasitoid, Copidosoma sosares Figure 1 d that produce distinctive mummies Figure 1 e inside the stems.

The adult moths or parasitoids emerge from the stems through the holes within a few weeks and overwinter in the surrounding vegetation or leaf litter until the following spring. However, other arthropods, such as the woodlouse Porcelio scaber , the earwig Forficula auricularia , and spiders, especially Clubiona phragmitis , that are known to perform important ecological roles i. They may use these stems for several months and occasionally even a year or more, depending on how long the plant stem remains intact, but long after D. Some individual plants may be attacked by more than a single D.

In North America, however, D. Heracleum maximum is closely related to the preferred plant host of D. Interactions between webworms and cow parsnips are virtually identical to those with hogweeds. In the United States, moreover, C. Here, we examine interactions between D. The Dutch populations of H.

First, we compared numbers of D. We hypothesize that in both the native and the invasive range holes chewed by mature D. The United States locations were scattered over a far wider area than the Dutch populations, as H. Senescing plants of both species with holes created by D. A fully grown plant was defined as one in senescence; all seeds were dried or had already fallen from the plant and the outer stem was no longer moist and green in color but dry and brown postreproductive stage. Plants in each location infested with D.

Before cutting, the total height of each plant was measured, the number of D. Each hollow stem contains several chambers that are separated by a thick wall, and all of these were opened on the sampled plants. Once a stem was cut it was carefully split open to avoid crushing any resident arthropods and the arthropods found in them were identified and counted.