More than a meal integrating nonfeeding interactions into food webs
... Organisms eating each other are only one of many types of well documented and important interactions among species. Other such types include habitat modification, predator interference and facilitation. However, ecological network research has been typically limited to either pure food webs or to ne ...
... Organisms eating each other are only one of many types of well documented and important interactions among species. Other such types include habitat modification, predator interference and facilitation. However, ecological network research has been typically limited to either pure food webs or to ne ...
Enos Lake Benthic and Limnetic Threespine Stickleback Species
... Percent decline in total number of mature individuals over any 10 year period, over a time period including both the past and the future. Although sampling indicates the existence of a hybrid swarm, some benthic individuals may exist in the total population Are the causes of the decline clearly reve ...
... Percent decline in total number of mature individuals over any 10 year period, over a time period including both the past and the future. Although sampling indicates the existence of a hybrid swarm, some benthic individuals may exist in the total population Are the causes of the decline clearly reve ...
Integrating spatial and temporal approaches to understanding
... development and testing of new theories. Other areas of research on species richness could also benefit from an explicitly spatio-temporal approach, and we suggest future directions for understanding the processes common to these two traditionally isolated fields of research. Keywords: species richn ...
... development and testing of new theories. Other areas of research on species richness could also benefit from an explicitly spatio-temporal approach, and we suggest future directions for understanding the processes common to these two traditionally isolated fields of research. Keywords: species richn ...
An experimental framework to identify community functional
... traits, CWM can only be calculated for a single trait. If more than one trait is important for the ecosystem process of interest, we envisage two possible scenarios. First, when the effect traits considered are correlated to each other (Díaz et al. 2004; Wright et al. 2004), reduction of dimensional ...
... traits, CWM can only be calculated for a single trait. If more than one trait is important for the ecosystem process of interest, we envisage two possible scenarios. First, when the effect traits considered are correlated to each other (Díaz et al. 2004; Wright et al. 2004), reduction of dimensional ...
- Polar Bears International
... whether to draw a picture or just discuss in groups or class- any combination of the traits mentioned so far would be possible, no real wrong answers. b. Can you think of reasons that it might be a problem or even dangerous for these species to overlap with each other? Think of what we talked about ...
... whether to draw a picture or just discuss in groups or class- any combination of the traits mentioned so far would be possible, no real wrong answers. b. Can you think of reasons that it might be a problem or even dangerous for these species to overlap with each other? Think of what we talked about ...
page proofs oofs
... Reno, Nevada, United States, where she studies life in natural, but often extreme, habitats found at both poles. Since joining the DRI in 2001, Alison has made significant contributions to molecular and cellular biology, advancing ecological understanding of microbial life with respect to ecosystem ...
... Reno, Nevada, United States, where she studies life in natural, but often extreme, habitats found at both poles. Since joining the DRI in 2001, Alison has made significant contributions to molecular and cellular biology, advancing ecological understanding of microbial life with respect to ecosystem ...
Télécharger
... experimental design (are fish that do not get a disease resistant or have they merely not encountered the disease?) than to problems with additive variance for the trait “disease resistance”. Resistance to polluted waters is also desirable in some areas, e.g., heavy metal tolerance in tilapia, but c ...
... experimental design (are fish that do not get a disease resistant or have they merely not encountered the disease?) than to problems with additive variance for the trait “disease resistance”. Resistance to polluted waters is also desirable in some areas, e.g., heavy metal tolerance in tilapia, but c ...
Feeding Relationships Among Species of Notropis (Pisces
... in eight sampling periods during 1970-71 suggest a separation between the relatively sedentary bottom fauna, composed of oligochaetes, isopods, several genera of chironomids, tipulids, and trichopterans; and the drift fauna, composed of copepods, chironomids of the subfamily Orthocladiinae, ephemero ...
... in eight sampling periods during 1970-71 suggest a separation between the relatively sedentary bottom fauna, composed of oligochaetes, isopods, several genera of chironomids, tipulids, and trichopterans; and the drift fauna, composed of copepods, chironomids of the subfamily Orthocladiinae, ephemero ...
Drake, D. R. - IPNA-CSIC
... Predation by feral cats has important impacts on seabirds and many other vertebrates on islands worldwide (Moors and Atkinson 1984). More than 15 species of reptiles, 30 mammals, and lOO birds are threatened by feral cats on islands (Medina et al. unpublished data). Cats have led to the extinction o ...
... Predation by feral cats has important impacts on seabirds and many other vertebrates on islands worldwide (Moors and Atkinson 1984). More than 15 species of reptiles, 30 mammals, and lOO birds are threatened by feral cats on islands (Medina et al. unpublished data). Cats have led to the extinction o ...
Ecology and Evolution of Adaptive Morphological Variation in Fish
... abundance and size structure of prey populations, predation has commonly selected for ecological, behavioral and morphological traits in prey (Lima and Dill 1990, Harvell1990). Various morphological structures in prey organisms’ function as efficient adaptations against predation, and these morpholo ...
... abundance and size structure of prey populations, predation has commonly selected for ecological, behavioral and morphological traits in prey (Lima and Dill 1990, Harvell1990). Various morphological structures in prey organisms’ function as efficient adaptations against predation, and these morpholo ...
Feeding Habits of Fish Species Distributed on the Grand Bank
... The order followed to present the species was done beginning with the species with the lowest values of niche width (specialist species) and at the end of the list we find those species with the highest values (generalist species), measuring mean niche breadth value (Table 5). Round skate (Rajella f ...
... The order followed to present the species was done beginning with the species with the lowest values of niche width (specialist species) and at the end of the list we find those species with the highest values (generalist species), measuring mean niche breadth value (Table 5). Round skate (Rajella f ...
james-cd-etal-1999provision-watering-points
... (Woinarski & Braithwaite, 1990; Hoser, 1991; Leigh & Briggs, 1992; Reid & Fleming, 1992). This record of species loss, and the potential for many more extinctions, has led to a focus on the effects of current land uses on biodiversity. Throughout most of the arid and semi-arid zones of Australia, th ...
... (Woinarski & Braithwaite, 1990; Hoser, 1991; Leigh & Briggs, 1992; Reid & Fleming, 1992). This record of species loss, and the potential for many more extinctions, has led to a focus on the effects of current land uses on biodiversity. Throughout most of the arid and semi-arid zones of Australia, th ...
Scientific Canadian
... fuzzy logic. The jellyfish chronicles were each given a score for the space and time they covered, as well as the reliability of the data. Thus, an anecdotal account of increased abundance over a particular summer would be given a relatively low score, whereas a large-scale, rigorous scientific moni ...
... fuzzy logic. The jellyfish chronicles were each given a score for the space and time they covered, as well as the reliability of the data. Thus, an anecdotal account of increased abundance over a particular summer would be given a relatively low score, whereas a large-scale, rigorous scientific moni ...
Macroecology of Microbes – Biogeography of the
... species concept is that DNA used for comparison can be extracted from roots, indicating that it was likely forming active mycorrhizae. Furthermore, this technique does not require spore identification skills, which can be difficult to acquire, timeconsuming, and highly variable among researchers. Al ...
... species concept is that DNA used for comparison can be extracted from roots, indicating that it was likely forming active mycorrhizae. Furthermore, this technique does not require spore identification skills, which can be difficult to acquire, timeconsuming, and highly variable among researchers. Al ...
Guideline on Pest Risk Analysis - GB non
... The Convention on Biological Diversity (CBD) emphasises the need for a precautionary approach towards non-native species where there is often a lack of firm scientific evidence. It also strongly promotes the use of good quality risk assessment to help underpin this approach. The GB risk analysis mec ...
... The Convention on Biological Diversity (CBD) emphasises the need for a precautionary approach towards non-native species where there is often a lack of firm scientific evidence. It also strongly promotes the use of good quality risk assessment to help underpin this approach. The GB risk analysis mec ...
Living where the flow is right: How flow affects
... the rate at which particles are encountered. Eventually, a maximum is reached beyond which the rate at which particles are captured is unaffected by further increase in velocity. This maximum particlecapture rate may be determined by such things as the size of the filtration surface or limits on the ...
... the rate at which particles are encountered. Eventually, a maximum is reached beyond which the rate at which particles are captured is unaffected by further increase in velocity. This maximum particlecapture rate may be determined by such things as the size of the filtration surface or limits on the ...
MARELAC ` BOTANY` 3
... substrate around roots >< between trees. • Ecological roles of mangroves - soil formation by trapping debris (aerial roots!! + filamentous algae); - filter land run-off -> removing terrestrial organic matter; - habitats for many faunal species (nursery function!); - producers of detritus -> offshore ...
... substrate around roots >< between trees. • Ecological roles of mangroves - soil formation by trapping debris (aerial roots!! + filamentous algae); - filter land run-off -> removing terrestrial organic matter; - habitats for many faunal species (nursery function!); - producers of detritus -> offshore ...
Measuring and monitoring Biodiversity in Tropical
... This book contains 24 papers selected from among those presented at an international symposium on Measuring and Monitoring Biodivcrsity in Tropical and Temperate Forests , held in Chiang Mai, Thailand, between the 27th of August and 2nd of September, 1994. The symposium was attended by over 240 scie ...
... This book contains 24 papers selected from among those presented at an international symposium on Measuring and Monitoring Biodivcrsity in Tropical and Temperate Forests , held in Chiang Mai, Thailand, between the 27th of August and 2nd of September, 1994. The symposium was attended by over 240 scie ...
Forest Floor Vegetation in Sweden - Epsilon Open Archive
... In boreal forests, dwarf-shrubs (Vaccinium spp.) often dominate the forest floor and are key-stone species in ecosystems due to their importance for nutrient cycling and as a major food source for herbivores. Forestry affects the vegetation both directly through management and indirectly by altering ...
... In boreal forests, dwarf-shrubs (Vaccinium spp.) often dominate the forest floor and are key-stone species in ecosystems due to their importance for nutrient cycling and as a major food source for herbivores. Forestry affects the vegetation both directly through management and indirectly by altering ...
file - ORCA
... discussions of rewilding practices. In their paper, the authors focus on making a scientific case for the need to reintroduce top carnivores into North America: ...
... discussions of rewilding practices. In their paper, the authors focus on making a scientific case for the need to reintroduce top carnivores into North America: ...
Alien Marine Invertebrates of Hawaii
... ones for food or space; introduce new pests, parasites, or pathogens; and generally cause a disruption in the native environment. Through the Hawaii Biological Survey at Bishop Museum, a count of the total number of species in the Archipelago has been compiled. In 1999, the time of the last tally, t ...
... ones for food or space; introduce new pests, parasites, or pathogens; and generally cause a disruption in the native environment. Through the Hawaii Biological Survey at Bishop Museum, a count of the total number of species in the Archipelago has been compiled. In 1999, the time of the last tally, t ...
Ecological role of vertebrate scavengers in urban ecosystems in the
... mals, plays a key role in ecosystem structure, functioning, and stability. A growing number of studies suggest that vertebrate scavengers also provide key ecosystem services, the benefits humans gain from the natural world, particularly in the removal of carcasses from the environment. An increasing ...
... mals, plays a key role in ecosystem structure, functioning, and stability. A growing number of studies suggest that vertebrate scavengers also provide key ecosystem services, the benefits humans gain from the natural world, particularly in the removal of carcasses from the environment. An increasing ...
Native frog (Leiopelma spp.) recovery plan
... Hochstetter's frog, Leiopelma hochstetteri, which occurs in forested patches of the North Island from Northland to Pureora and East Cape, and on Great Barrier Island; Archey's frog, Leiopelma archeyi, found on the Coromandel Range; and Hamilton's frog, Leiopelma hamiltoni, restricted to Maud and Ste ...
... Hochstetter's frog, Leiopelma hochstetteri, which occurs in forested patches of the North Island from Northland to Pureora and East Cape, and on Great Barrier Island; Archey's frog, Leiopelma archeyi, found on the Coromandel Range; and Hamilton's frog, Leiopelma hamiltoni, restricted to Maud and Ste ...
Best Management Practices
... setting appropriate goals is extremely important. A good first step is to determine the habitats most worthy of management—from a biodiversity perspective—on your property, including any large, high quality, rare, or uncommon habitats. These can include natural communities such as forests and wetlan ...
... setting appropriate goals is extremely important. A good first step is to determine the habitats most worthy of management—from a biodiversity perspective—on your property, including any large, high quality, rare, or uncommon habitats. These can include natural communities such as forests and wetlan ...
Spatial and seasonal patterns of habitat partitioning
... the study. All fish were identified to species a n d their total lengths measured to the nearest mm. The rocks were then replaced, the pool refilled, and the fish returned. Between 3 a n d 6 d were required to sample all pools within a site. Data were collected only during the day and only during ti ...
... the study. All fish were identified to species a n d their total lengths measured to the nearest mm. The rocks were then replaced, the pool refilled, and the fish returned. Between 3 a n d 6 d were required to sample all pools within a site. Data were collected only during the day and only during ti ...
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.