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Mexico - Seafood Watch
... information include government technical publications, fishery management plans and supporting documents, and other scientific reviews of ecological sustainability. Seafood Watch® Research Analysts also communicate regularly with ecologists, fisheries and aquaculture scientists, and members of indus ...
... information include government technical publications, fishery management plans and supporting documents, and other scientific reviews of ecological sustainability. Seafood Watch® Research Analysts also communicate regularly with ecologists, fisheries and aquaculture scientists, and members of indus ...
Mammals of the Mixedwood Plains Ecozone
... deglaciation about 10 000 years ago. During this period a succession of species assemblages has moved through this ecozone as the climate warmed. Several of the larger mammal species known from this area became extinct during this period of change. These included giant beavers, woolly mammoths, mast ...
... deglaciation about 10 000 years ago. During this period a succession of species assemblages has moved through this ecozone as the climate warmed. Several of the larger mammal species known from this area became extinct during this period of change. These included giant beavers, woolly mammoths, mast ...
distribution and ecology of the broad
... The Broad-toothed Rat Mastacomys fuscus is a small to medium sized rodent of the family Muridae. Within the ACT the species is thought to occur in subalpine swamps and the associated riparian heathland, sedgeland and grassland environments above 1400 m. M. fuscus is recognised nationally as a declin ...
... The Broad-toothed Rat Mastacomys fuscus is a small to medium sized rodent of the family Muridae. Within the ACT the species is thought to occur in subalpine swamps and the associated riparian heathland, sedgeland and grassland environments above 1400 m. M. fuscus is recognised nationally as a declin ...
Impact of global change on biodiversity and biogeochemical cycles
... Anna Shevtsova (1), Bente Graae (2), Till Jochum (3), Ann Milbau (1,2) & Ivan Nijs (1).............. 43 The sensitivity of the small scale vascular plant species distribution in snowbeds to climate change.......... 44 Christian Schöb* (1), Peter M. Kammer (2), Philippe Choler (3) and Heinz Veit (1) ...
... Anna Shevtsova (1), Bente Graae (2), Till Jochum (3), Ann Milbau (1,2) & Ivan Nijs (1).............. 43 The sensitivity of the small scale vascular plant species distribution in snowbeds to climate change.......... 44 Christian Schöb* (1), Peter M. Kammer (2), Philippe Choler (3) and Heinz Veit (1) ...
Susceptibility of Juvenile Steelhead to Avian Predation: the
... JUVENILE STEELHEAD SUSCEPTIBILITY TO AVIAN PREDATION ...
... JUVENILE STEELHEAD SUSCEPTIBILITY TO AVIAN PREDATION ...
A Vicious Circle? Altered Carbon and Nutrient Cycling
... nutrients (figure 3a). Although studies have yet to address this idea directly, a reciprocal trade-off could act as a positive feedback that facilitates the growth of both sponges and seaweeds. Higher levels of DOC may also help to explain why coral diseases have been particularly aggressive on Cari ...
... nutrients (figure 3a). Although studies have yet to address this idea directly, a reciprocal trade-off could act as a positive feedback that facilitates the growth of both sponges and seaweeds. Higher levels of DOC may also help to explain why coral diseases have been particularly aggressive on Cari ...
linking fungal diversity and community dynamics to terrestrial
... addition, other fungal functional groups, in particular ericoid mycorrhizal and ectomycorrhizal fungi, contribute strongly to fungal biomass in many acid soils (Strickland & Rousk, 2010). Nevertheless, a strong inverse relationship between fungal decomposer activities and pH has been observed under ...
... addition, other fungal functional groups, in particular ericoid mycorrhizal and ectomycorrhizal fungi, contribute strongly to fungal biomass in many acid soils (Strickland & Rousk, 2010). Nevertheless, a strong inverse relationship between fungal decomposer activities and pH has been observed under ...
Aquatic Insect Ecology
... also may exhibit pronounced diel temperature fluctuations, especially on sunny days. Shallow unshaded wetlands also exhibit large diel temperature fluctuations, ranging from subfreezing to tepid in northern wetlands. Thus, temperature variation imposes fundamental constraints on insect life historie ...
... also may exhibit pronounced diel temperature fluctuations, especially on sunny days. Shallow unshaded wetlands also exhibit large diel temperature fluctuations, ranging from subfreezing to tepid in northern wetlands. Thus, temperature variation imposes fundamental constraints on insect life historie ...
Black hazel dormice? - People`s Trust for Endangered Species
... mainly at the larval stage. As yet the method is not precise enough to prevent species which do not occur in an area from being identified but such errors do not invalidate the procedure. DNA databases are still incomplete but more and more sequences are becoming available all the time. The collecti ...
... mainly at the larval stage. As yet the method is not precise enough to prevent species which do not occur in an area from being identified but such errors do not invalidate the procedure. DNA databases are still incomplete but more and more sequences are becoming available all the time. The collecti ...
AB 1325 - LegTrack
... survey showed the lowest number of Delta smelt in 47 years of record keeping. The 2015 Spring trawl survey caught only 6 smelt. It is also worth noting that while the status of the Delta smelt has in the past significantly affected operations at state pumping facilities and water exports from the De ...
... survey showed the lowest number of Delta smelt in 47 years of record keeping. The 2015 Spring trawl survey caught only 6 smelt. It is also worth noting that while the status of the Delta smelt has in the past significantly affected operations at state pumping facilities and water exports from the De ...
When natural habitat fails to enhance biological pest control
... However, prioritizing management for biodiversity might limit management options and priorities for provisioning ecosystem services such as crop production (Kleijn et al., 2011; Macfadyen et al., 2012). As shown in several recent reviews, natural enemy populations are on average higher and pest pres ...
... However, prioritizing management for biodiversity might limit management options and priorities for provisioning ecosystem services such as crop production (Kleijn et al., 2011; Macfadyen et al., 2012). As shown in several recent reviews, natural enemy populations are on average higher and pest pres ...
Herpetological Review Herpetological Review
... the authors used existing phylogenetic data and data on amphibian declines to look for factors that make some taxa particularly susceptible to rapid population declines. They compiled a dataset consisting of ecological, life history, and environmental data for 553 species (spanning 32 of 33 families ...
... the authors used existing phylogenetic data and data on amphibian declines to look for factors that make some taxa particularly susceptible to rapid population declines. They compiled a dataset consisting of ecological, life history, and environmental data for 553 species (spanning 32 of 33 families ...
Differential competitive abilities between Caribbean coral species
... L. variegata to cause tissue mortality in 6 common species of Caribbean corals and the reciprocal effects of these species on algal growth. We then related our experimental results with (1) patterns of natural interactions between the studied coral species and L. variegata, and (2) temporal changes ...
... L. variegata to cause tissue mortality in 6 common species of Caribbean corals and the reciprocal effects of these species on algal growth. We then related our experimental results with (1) patterns of natural interactions between the studied coral species and L. variegata, and (2) temporal changes ...
IMPACT OF PREDATORS ON THE ABUNDANCE OF
... identical in all humus forms. If earthworms, through their burrows, favour access of H. nitidus ...
... identical in all humus forms. If earthworms, through their burrows, favour access of H. nitidus ...
Leaf gas exchange responses of 13 prairie grassland
... model. Year as a main effect was significant (P < 0.01) for seven of the nine variables. The CO2 treatment × year interaction was not significant (P > 0.25) for any variable, however, in three cases the N treatment × year interaction was significant (P < 0.05). Because the effect of year was often s ...
... model. Year as a main effect was significant (P < 0.01) for seven of the nine variables. The CO2 treatment × year interaction was not significant (P > 0.25) for any variable, however, in three cases the N treatment × year interaction was significant (P < 0.05). Because the effect of year was often s ...
Analysis of the Diets of the Northern Spotted Owl and Barred Owl
... between 28-76% in areas of Washington and Oregon (Weins, 2012, Hamter etl al. 1997). Studies show that at times the habitat of each species overlaps more than their diets due to different foraging strategies and habitat partitioning such as selection of terrestrial or arboreal prey varied between bo ...
... between 28-76% in areas of Washington and Oregon (Weins, 2012, Hamter etl al. 1997). Studies show that at times the habitat of each species overlaps more than their diets due to different foraging strategies and habitat partitioning such as selection of terrestrial or arboreal prey varied between bo ...
Carol A. Blanchette for the degree of Doctor of Philosophy... presented on August 29, 1994. Factors on Population
... Menge, who have been excellent mentors and have greatly enhanced my graduate school experience. Both Jane and Bruce provided constant encouragement, support and invaluable advice, yet always allowed me to think for myself. Bruce also provided me with lots of practical field experience at how to dril ...
... Menge, who have been excellent mentors and have greatly enhanced my graduate school experience. Both Jane and Bruce provided constant encouragement, support and invaluable advice, yet always allowed me to think for myself. Bruce also provided me with lots of practical field experience at how to dril ...
SUMMARY
... mechanisms, there is an apparent lacuna in the current understanding of mangrove ecology. The period between the mature propagule falling from the parental mangrove tree and the early growth of the established seedling, under various possible circumstances, remains in the dark. In this study we focu ...
... mechanisms, there is an apparent lacuna in the current understanding of mangrove ecology. The period between the mature propagule falling from the parental mangrove tree and the early growth of the established seedling, under various possible circumstances, remains in the dark. In this study we focu ...
Goyder Institute for Water Research Technical Report Series No. 15/45
... 3) describe how fish communities vary spatially and temporally within the basin. Using the findings from these models we modified an existing and proven condition assessment methodology (the biological condition gradient or BCG) to create a transferable and adaptive trait-based condition assessment ...
... 3) describe how fish communities vary spatially and temporally within the basin. Using the findings from these models we modified an existing and proven condition assessment methodology (the biological condition gradient or BCG) to create a transferable and adaptive trait-based condition assessment ...
Trophic biology of antarctic shallow
... exploit prey which are low in energy content yet extremely abundant, such as sponges. Even though in&viduals may have a low energy intake, it is likely that echinoderms play a significant role in energy transfer in antarctic benthos, as they are among the most abundant of epibenthic macroinvertebrat ...
... exploit prey which are low in energy content yet extremely abundant, such as sponges. Even though in&viduals may have a low energy intake, it is likely that echinoderms play a significant role in energy transfer in antarctic benthos, as they are among the most abundant of epibenthic macroinvertebrat ...
Plan de gestion du Faucon pèlerin anatum/tundrius
... Forests, Lands and Natural Resource Operations, Government of British Columbia), Todd Powell (Environment Yukon, Government of Yukon), John Elliott (EC-Science and Technology, Pacific and Yukon Region), Deborah Simmons and Catarina Owen (Sahtu Renewable Resources Board), Natalka Melnycky (Gwich'in R ...
... Forests, Lands and Natural Resource Operations, Government of British Columbia), Todd Powell (Environment Yukon, Government of Yukon), John Elliott (EC-Science and Technology, Pacific and Yukon Region), Deborah Simmons and Catarina Owen (Sahtu Renewable Resources Board), Natalka Melnycky (Gwich'in R ...
Theoretical ecology
![](https://en.wikipedia.org/wiki/Special:FilePath/FoodWeb.jpg?width=300)
Theoretical ecology is the scientific discipline devoted to the study of ecological systems using theoretical methods such as simple conceptual models, mathematical models, computational simulations, and advanced data analysis. Effective models improve understanding of the natural world by revealing how the dynamics of species populations are often based on fundamental biological conditions and processes. Further, the field aims to unify a diverse range of empirical observations by assuming that common, mechanistic processes generate observable phenomena across species and ecological environments. Based on biologically realistic assumptions, theoretical ecologists are able to uncover novel, non-intuitive insights about natural processes. Theoretical results are often verified by empirical and observational studies, revealing the power of theoretical methods in both predicting and understanding the noisy, diverse biological world.The field is broad and includes foundations in applied mathematics, computer science, biology, statistical physics, genetics, chemistry, evolution, and conservation biology. Theoretical ecology aims to explain a diverse range of phenomena in the life sciences, such as population growth and dynamics, fisheries, competition, evolutionary theory, epidemiology, animal behavior and group dynamics, food webs, ecosystems, spatial ecology, and the effects of climate change.Theoretical ecology has further benefited from the advent of fast computing power, allowing the analysis and visualization of large-scale computational simulations of ecological phenomena. Importantly, these modern tools provide quantitative predictions about the effects of human induced environmental change on a diverse variety of ecological phenomena, such as: species invasions, climate change, the effect of fishing and hunting on food network stability, and the global carbon cycle.