Una caratterizzazione ecologica delle zone costiere una caratterizzazione ecologica delle zone costiere Maine (a nord e a est di Cape Elizabeth) ecologicalcharac03usfi Anno: 1980 capitolo 18 rettili e anfibi autori: Craig Ferris , Sally Rooney Resident rettili e anfibi (collettivamente chiamati herptiles) non sono abbondanti nella costa del Maine quando confrontata ad altre est degli Stati Uniti le aree costiere probabilmente a causa delle basse temperature invernali e/o brevi estati calde. Tuttavia, determinati tipi di habitat, come le paludi e acquitrini e fiumi, può supportare un numero elevato di alcune specie. Sedici specie di anfibi

• Collaboratore: Bookworm / Alamy Foto Stock
• ID dell’immagine: RX9EW4
• Dimensioni dei file: 5,7 MB (135,4 KB Download compresso)
• Liberatorie: Modello - no | Proprietà - no
• Dimensioni: 1557 x 1284 px | 26,4 x 21,7 cm | 10,4 x 8,6 inches | 150dpi

Altre informazioni

Questa foto è un'immagine di pubblico dominio, il che significa che il copyright è scaduto o che il titolare del copyright ha rinunciato a tale diritto. Alamy addebita un costo per l'accesso alla copia ad alta risoluzione dell'immagine.

Questa immagine potrebbe avere delle imperfezioni perché è storica o di reportage.

An ecological characterization of Coastal An ecological characterization of Coastal Maine (north and east of Cape Elizabeth) ecologicalcharac03usfi Year: 1980 Chapter 18 Reptiles and Amphibians Authors: Craig Ferris , Sally Rooney Resident reptiles and amphibians (collectively called herptiles) are not abundant in coastal Maine when compared to other eastern United States coastal areas probably because of the low winter temperatures and/or the short cool summers. However, certain habitats, such as marshes, bogs, and rivers, may support high numbers of some species. Sixteen amphibian species inhabit coastal Maine: eight salamander species, one toad species, and seven frog species. Fourteen resident reptile species are represented: five turtle species and nine snake species (table 18-1). In addition, there is one species of sea turtle, the leatherback (an endangered species), that is found regularly in low numbers in the marine system of coastal Maine. There are no native lizards in Maine. Amphibians are poikilothermic (cold blooded) vertebrates with moist skins, and lungs or gills, through which they respire. They inhabit damp terrestrial habitats and freshwater aquatic environments. Several salamanders are primarily terrestrial but require moist microhabitats, e.g., under logs or in wet leaf-litter. Adult toads, although terrestrial, breed in aquatic habitats. All amphibian species have an amphibious larval stage. Reptiles have dry, scaly skins, which help prevent desiccation, and respire through lungs. Snakes inhabit terrestrial systems mostly, while turtles are found primarily in or near freshwater systems. Reptiles have no larval stages. Reptiles and amphibians are important to humanity scientifically and aesthetically. It has been suggested that amphibians could serve as indicators of environmental contamination, because their moist skins may concentrate toxic substances trapped during respiration (Porter 1972). Neither group has economic value in Maine, alth

Parole chiave associate all'immagine

• archivio
• disegno
• illustrazione
• immagine
• libro
• pag
• picture
• reference
• stampare
• storia
• storico
• vintage