spatial variation in molluscan assemblages from coralline turfs of
... opportunity for infaunal molluscs as well as frond-dwelling species (Gibbons, 1988). The fronds themselves and their associated epiphytes (attached algae) may also provide a nutritional source for grazing snails (Hay, Duffy & Pfister, 1987) or chemicals given off by the fronds may attract or repel mo ...
... opportunity for infaunal molluscs as well as frond-dwelling species (Gibbons, 1988). The fronds themselves and their associated epiphytes (attached algae) may also provide a nutritional source for grazing snails (Hay, Duffy & Pfister, 1987) or chemicals given off by the fronds may attract or repel mo ...
Invasive Plants and Wildlife Habitat Conservation Planning in an Era of
... affect animals that inhabit grassland ecosystems, with the direction and magnitude of effects reflecting the resource needs of each species, the degree of plant invasion, and the contrast in structure between invading and native plants. When non-native plants present similar structural cues but provi ...
... affect animals that inhabit grassland ecosystems, with the direction and magnitude of effects reflecting the resource needs of each species, the degree of plant invasion, and the contrast in structure between invading and native plants. When non-native plants present similar structural cues but provi ...
Iluka Chair Fact Sheet
... of Plant Biology, said the improved understanding will be of national and international significance, with likely benefits to vegetation science worldwide.” ...
... of Plant Biology, said the improved understanding will be of national and international significance, with likely benefits to vegetation science worldwide.” ...
The role of ecophysiological studies in the genus Prosopis
... evaporation and frosts during the winter, agricultural strategies must take into account and manage Prosopis populations in situ. This approach will enable farmers to improve the economic profitability of livestock production and the exploitation of plants of this genus for medicinal and gastronomic ...
... evaporation and frosts during the winter, agricultural strategies must take into account and manage Prosopis populations in situ. This approach will enable farmers to improve the economic profitability of livestock production and the exploitation of plants of this genus for medicinal and gastronomic ...
Print version
... The entire eastern population migrates to about 12 overwintering sites in central Mexico, where the butterflies congregate in vast numbers. These sites, which are specialized high-altitude ecosystems, are all located within a small area of approximately 800 square kilometres and occur only in oyamel ...
... The entire eastern population migrates to about 12 overwintering sites in central Mexico, where the butterflies congregate in vast numbers. These sites, which are specialized high-altitude ecosystems, are all located within a small area of approximately 800 square kilometres and occur only in oyamel ...
DR on Adoption of Guidance and Definitions Rev1
... in response to human activity) are not the same as disturbance impacts (i.e. modifications to population dynamics through changes in breeding success and/or mortality). Typically, the latter is rarely possible to assess in contrast to the former. The definition relates to effects which may or may no ...
... in response to human activity) are not the same as disturbance impacts (i.e. modifications to population dynamics through changes in breeding success and/or mortality). Typically, the latter is rarely possible to assess in contrast to the former. The definition relates to effects which may or may no ...
The form of direct interspecific competition modifies
... from single- and multi-trophic ecosystem models is whether the secondary extinctions that occur within competitive communities (guilds) are also important in multi-trophic ecosystems? The loss of consumer–resource links obviously causes secondary extinction of specialist consumers (topological extin ...
... from single- and multi-trophic ecosystem models is whether the secondary extinctions that occur within competitive communities (guilds) are also important in multi-trophic ecosystems? The loss of consumer–resource links obviously causes secondary extinction of specialist consumers (topological extin ...
15_soft-sediment ecology
... damage to bottom - sediments are altered - non-target animals are injured or killed - trawls dragged over the sediment can weight 10 tons - some areas are trawled at very high frequencies: 71% the entire bottom of the Danish North Sea is swept at least once a year ...
... damage to bottom - sediments are altered - non-target animals are injured or killed - trawls dragged over the sediment can weight 10 tons - some areas are trawled at very high frequencies: 71% the entire bottom of the Danish North Sea is swept at least once a year ...
Ecological Impacts of Non-native Freshwater Fishes (Cucherousset
... fishes across multiple levels of biological organization (ranging from the genome to the ecosystem) and conclude with a prospectus of needed areas of scientific inquiry to advance this understanding. Our investigation focuses on the negative impacts of fish introductions, although we readily acknowl ...
... fishes across multiple levels of biological organization (ranging from the genome to the ecosystem) and conclude with a prospectus of needed areas of scientific inquiry to advance this understanding. Our investigation focuses on the negative impacts of fish introductions, although we readily acknowl ...
Amphibian Habitat Management Handbook
... The direct loss of wildlife habitat to building development has also affected amphibians. For example, coastal sites favoured by the natterjack toad have disappeared as they have been targeted by humans as desirable areas for leisure developments. Housing developments elsewhere have had mixed impact ...
... The direct loss of wildlife habitat to building development has also affected amphibians. For example, coastal sites favoured by the natterjack toad have disappeared as they have been targeted by humans as desirable areas for leisure developments. Housing developments elsewhere have had mixed impact ...
Community assembly and invasion: An experimental Joseph Fargione* , Cynthia S. Brown
... Some hypothesized community assembly processes have been interpreted as predicting patterns such as ‘‘forbidden pairs,’’ ‘‘checkerboards,’’ or ‘‘favored states’’ and have been tested by measuring abundance patterns in natural communities (see discussions in refs. 13 and 14). However, the difficultie ...
... Some hypothesized community assembly processes have been interpreted as predicting patterns such as ‘‘forbidden pairs,’’ ‘‘checkerboards,’’ or ‘‘favored states’’ and have been tested by measuring abundance patterns in natural communities (see discussions in refs. 13 and 14). However, the difficultie ...
Geographic range of West African freshwater fishes
... discusses the correlations between a number of biological characteristics and range size. These characreristics are chosen in such a way that they can be associated generally - or more particularly for West African fishes -with probabilities of extinction and immigration. The third point examined is ...
... discusses the correlations between a number of biological characteristics and range size. These characreristics are chosen in such a way that they can be associated generally - or more particularly for West African fishes -with probabilities of extinction and immigration. The third point examined is ...
Regional and local impact on species diversity – from pattern to
... due to ecological interactions cannot be expected on these large scales. On the other hand, sampling areas for SL which are too low may result in increasing undersampling of rare species and thus the artificial creation of a non-linear pattern between SL and SR, which has been called pseudosaturatio ...
... due to ecological interactions cannot be expected on these large scales. On the other hand, sampling areas for SL which are too low may result in increasing undersampling of rare species and thus the artificial creation of a non-linear pattern between SL and SR, which has been called pseudosaturatio ...
Ontogenetic variation in the diurnal food and habitat
... with surface habitats (Figure 4a), or with all habitats (Figure 4b,c). Within Big Pond however, in addition to the significantly different comparisons among all benthic and surface distributions, H0 was rejected for comparisons MB × LB within the benthic habitats, and for comparisons LS × ME and LS ...
... with surface habitats (Figure 4a), or with all habitats (Figure 4b,c). Within Big Pond however, in addition to the significantly different comparisons among all benthic and surface distributions, H0 was rejected for comparisons MB × LB within the benthic habitats, and for comparisons LS × ME and LS ...
Species Profile - Atlantic States Marine Fisheries Commission
... American shad are a migratory anadromous fish that spend most of their life in the Atlantic Ocean but return to coastal rivers and tributaries in the spring to spawn. Adults are highly migratory along the coast with primary summer feeding grounds located in the Bay of Fundy and three primary offshor ...
... American shad are a migratory anadromous fish that spend most of their life in the Atlantic Ocean but return to coastal rivers and tributaries in the spring to spawn. Adults are highly migratory along the coast with primary summer feeding grounds located in the Bay of Fundy and three primary offshor ...
Ecology of Vertebrate Animals in Relation to Chaparral Fire in the
... These conclusions were reached in the course of a 4-year study of adjoining burned and unburned areas near Glennville, Kern County, California. Field work began in 1953 at which time study plots were selected and plant and vertebrate population were censused. A year later part of the study area was ...
... These conclusions were reached in the course of a 4-year study of adjoining burned and unburned areas near Glennville, Kern County, California. Field work began in 1953 at which time study plots were selected and plant and vertebrate population were censused. A year later part of the study area was ...
Definitions
... relative frequency. For biological diversity these items are organized at many levels …. Thus the term biodiversity encompasses different ecosystems, species, genes and their relative abundance. (US Congress, Office of Technology Assessment, 1987). ...
... relative frequency. For biological diversity these items are organized at many levels …. Thus the term biodiversity encompasses different ecosystems, species, genes and their relative abundance. (US Congress, Office of Technology Assessment, 1987). ...
Informational Resources on Invasive Plants
... about invasive plant issues in the region. NIPGro promotes the sharing of information among network members, research into plant biology and management techniques, alternatives to invasive species still in use, and provides a clearinghouse and referral system for information. Abstracts from the Sept ...
... about invasive plant issues in the region. NIPGro promotes the sharing of information among network members, research into plant biology and management techniques, alternatives to invasive species still in use, and provides a clearinghouse and referral system for information. Abstracts from the Sept ...
Dwarf Wedgemussel - NH Fish and Game
... wedgemussels and hundreds of other mussel species were killed by waste runoff from a small farm in the Connecticut River Watershed (USFWS 2002). The effect of sediment toxicity is not well understood. However, recent toxicity tests for total residual chlorine showed that juvenile mussels are much mo ...
... wedgemussels and hundreds of other mussel species were killed by waste runoff from a small farm in the Connecticut River Watershed (USFWS 2002). The effect of sediment toxicity is not well understood. However, recent toxicity tests for total residual chlorine showed that juvenile mussels are much mo ...
Table of Contents - New England Conference Company
... Murray Darling Basin Reset, Rebuild, Restore: enterprise, ecosystem and community restoration in north east NSW Landscape-level revegetation reverses the decline of woodland birds in agricultural environments Comprehensive, reliable habitat classification and mapping is vital for restoration ecology ...
... Murray Darling Basin Reset, Rebuild, Restore: enterprise, ecosystem and community restoration in north east NSW Landscape-level revegetation reverses the decline of woodland birds in agricultural environments Comprehensive, reliable habitat classification and mapping is vital for restoration ecology ...
Biological Control of Insect Pests on Field Crops
... purchased products. However, in contrast to the other two forms of biological control, augmentation is less sustainable because it relies on regular or periodic releases of purchased products, something that sometimes benefits producers of these products more than consumers. Situations do exist wher ...
... purchased products. However, in contrast to the other two forms of biological control, augmentation is less sustainable because it relies on regular or periodic releases of purchased products, something that sometimes benefits producers of these products more than consumers. Situations do exist wher ...
MF2222 Biological Control of Insect Pests on
... purchased products. However, in contrast to the other two forms of biological control, augmentation is less sustainable because it relies on regular or periodic releases of purchased products, something that sometimes benefits producers of these products more than consumers. Situations do exist wher ...
... purchased products. However, in contrast to the other two forms of biological control, augmentation is less sustainable because it relies on regular or periodic releases of purchased products, something that sometimes benefits producers of these products more than consumers. Situations do exist wher ...
Managing Forests for Fish and Wildlife
... and wildlife species associated with those vegetation types. Although mid-story levels may develop, brushy Improving Fish and Wildlife Habitat with Forest ground cover required by some wildlife species can Management Practices be limited or altogether missing. Some wildlife species benefit from the ...
... and wildlife species associated with those vegetation types. Although mid-story levels may develop, brushy Improving Fish and Wildlife Habitat with Forest ground cover required by some wildlife species can Management Practices be limited or altogether missing. Some wildlife species benefit from the ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.