The Ecological Role of the Mammalian Mesocarnivore
... just two or three packs (McLaren and Peterson 1994). Thus, it is clear that a relatively small number of large carnivores can directly or indirectly influence multiple trophic levels and precipitate community-level cascades that increase the abundance of primary producers, ultimately modifying habit ...
... just two or three packs (McLaren and Peterson 1994). Thus, it is clear that a relatively small number of large carnivores can directly or indirectly influence multiple trophic levels and precipitate community-level cascades that increase the abundance of primary producers, ultimately modifying habit ...
Chapter 20 Succession and Stability In 1794, Captain George
... volcanic surfaces such as lava flows. In areas where disturbance destroys a community without destroying the soil, the subsequent succession is called secondary succession. For instance, secondary succession occurs after agricultural lands are abandoned or after a forest fire. Succession generally ...
... volcanic surfaces such as lava flows. In areas where disturbance destroys a community without destroying the soil, the subsequent succession is called secondary succession. For instance, secondary succession occurs after agricultural lands are abandoned or after a forest fire. Succession generally ...
Succession - cloudfront.net
... Ecosystems are "dynamic." This means that ecosystems change over time. That forest may lie on land that was once covered by an ocean millions of years ago. Lightning may have sparked a fire in a forest, destroying much of the plant life there. Or the forest may have been cut down at one point for ag ...
... Ecosystems are "dynamic." This means that ecosystems change over time. That forest may lie on land that was once covered by an ocean millions of years ago. Lightning may have sparked a fire in a forest, destroying much of the plant life there. Or the forest may have been cut down at one point for ag ...
Potential for Conservation of Western Pond Turtle on Private Lands
... and Laura Todd (US Fish & Wildlife Service). For funding the project, I thank the Oregon Watershed Enhancement Board in cooperation with the McKenzie Watershed Council (Jim Thrailkill), Long Tom Watershed Council (Dana Erickson), U. S. Forest Service, U.S. Fish and Wildlife Service, and Cascade-Paci ...
... and Laura Todd (US Fish & Wildlife Service). For funding the project, I thank the Oregon Watershed Enhancement Board in cooperation with the McKenzie Watershed Council (Jim Thrailkill), Long Tom Watershed Council (Dana Erickson), U. S. Forest Service, U.S. Fish and Wildlife Service, and Cascade-Paci ...
Structure and Stability of Ecological Networks resource use
... both a species- and a size-class-based approach. I also compare patterns of size structure derived from analysis of individual-based data with those patterns that result when data are aggregated into species (or size class-based) averages. This comparison shows that analysis based on species averagi ...
... both a species- and a size-class-based approach. I also compare patterns of size structure derived from analysis of individual-based data with those patterns that result when data are aggregated into species (or size class-based) averages. This comparison shows that analysis based on species averagi ...
alteration of ecosystem nitrogen dynamics by exotic plants: a case
... rate, or tissue quality, would be expected to overlap with native species in their effects on resources, and thus interact with residents in a competitive manner that would likely result in similar effects on ecosystem processes. We suggest that these species can still cause ecosystem change, but th ...
... rate, or tissue quality, would be expected to overlap with native species in their effects on resources, and thus interact with residents in a competitive manner that would likely result in similar effects on ecosystem processes. We suggest that these species can still cause ecosystem change, but th ...
primary consumer - FreshmanBiology
... Although agricultural and other managed ecosystems are necessary to supply our needs, we also depend on services provided by natural ecosystems. Healthy ecosystems – supply fresh water and some foods, – recycle nutrients, – decompose wastes, and ...
... Although agricultural and other managed ecosystems are necessary to supply our needs, we also depend on services provided by natural ecosystems. Healthy ecosystems – supply fresh water and some foods, – recycle nutrients, – decompose wastes, and ...
Indirect Effects in - Department of Knowledge Technologies
... potentially exert a selective force on another species through nontrophic interactions. It should also be noted that in nature many species are very well adapted to modify their community and habitat. ...
... potentially exert a selective force on another species through nontrophic interactions. It should also be noted that in nature many species are very well adapted to modify their community and habitat. ...
Genetic identity of interspecific neighbours mediates plant
... Three genotypes of Carex caryophyllea and Koeleria macrantha and one genotype of Campanula rotundifolia were selected from 16 clonal lines of each species established at Tapton Experimental Garden, University of Sheffield, UK, in 1995 by R. Booth and J. P. Grime (Booth & Grime 2003). All clones were ...
... Three genotypes of Carex caryophyllea and Koeleria macrantha and one genotype of Campanula rotundifolia were selected from 16 clonal lines of each species established at Tapton Experimental Garden, University of Sheffield, UK, in 1995 by R. Booth and J. P. Grime (Booth & Grime 2003). All clones were ...
Relationships between biodiversity and
... on the diversity of natural enemy communities attacking arthropod pests and weeds. We next discuss how biodiversity of these communities impacts pest control, and the mechanisms underlying these effects. We focus in particular on novel conceptual issues such as relationships between richness, evenne ...
... on the diversity of natural enemy communities attacking arthropod pests and weeds. We next discuss how biodiversity of these communities impacts pest control, and the mechanisms underlying these effects. We focus in particular on novel conceptual issues such as relationships between richness, evenne ...
this PDF file - Florida Online Journals
... in size, shape, and coloration can reflect variation in temperature, humidity, and daylength. Differing ecotypes contain species with characteristic arrays of adaptations that influence diversity at all levels of biological organization. For example, tundra ecosystem thermal and daylight constraints ...
... in size, shape, and coloration can reflect variation in temperature, humidity, and daylength. Differing ecotypes contain species with characteristic arrays of adaptations that influence diversity at all levels of biological organization. For example, tundra ecosystem thermal and daylight constraints ...
The effects of fisheries management practises on freshwater
... fisheries (Neisar, Arlinghaus, Rennart & Mehner 2004), although more experienced anglers are able to maintain high catch rates without increasing the amount of groundbait used. To alleviate this problem, further investigations on phosphorus-reduced baits are necessary and anglers should adopt methods ...
... fisheries (Neisar, Arlinghaus, Rennart & Mehner 2004), although more experienced anglers are able to maintain high catch rates without increasing the amount of groundbait used. To alleviate this problem, further investigations on phosphorus-reduced baits are necessary and anglers should adopt methods ...
The planning pattern research on mountain rural settlements in
... of Yun Zhengming, Wang Zhi-Ping and An Ping, the village presented the concept of ecology, the main form of villages, structure, behavior and environment. Subsequently, Chen Yong, Chen Guojie so further propose the concept of rural village ecosystems that the scope of village ecology in addition to ...
... of Yun Zhengming, Wang Zhi-Ping and An Ping, the village presented the concept of ecology, the main form of villages, structure, behavior and environment. Subsequently, Chen Yong, Chen Guojie so further propose the concept of rural village ecosystems that the scope of village ecology in addition to ...
Dealing with uncertainty and risk: Use of multipliers and discount rates
... managing pests to improve condition and successful establishment of seedlings and existing vegetation. Where they can be found, averted-loss offsets that reduce or halt ongoing or expected threats to biodiversity may provide more assured and immediate benefits than restoration-based offsets. This is ...
... managing pests to improve condition and successful establishment of seedlings and existing vegetation. Where they can be found, averted-loss offsets that reduce or halt ongoing or expected threats to biodiversity may provide more assured and immediate benefits than restoration-based offsets. This is ...
883) What controls the ability of species to respond (by
... 5) When considering future agricultural change, how can farming systems deliver the greatest synergies between ecological health and human health? 6) How current CAP reform (Single Farm Payment etc) will affect livestock farming. More specifically, we need to know how changes will affect livestock n ...
... 5) When considering future agricultural change, how can farming systems deliver the greatest synergies between ecological health and human health? 6) How current CAP reform (Single Farm Payment etc) will affect livestock farming. More specifically, we need to know how changes will affect livestock n ...
Andrew D. Barnes , Rowan M. Emberson , Hazel M. Chapman
... Results show that dung beetle communities respond strongly to habitat edges. To what degree these responses occur will be identified as other parameters are analysed, such as species richness and species traits. The most important factor determining edge response in dung beetle community structure a ...
... Results show that dung beetle communities respond strongly to habitat edges. To what degree these responses occur will be identified as other parameters are analysed, such as species richness and species traits. The most important factor determining edge response in dung beetle community structure a ...
Conservation and Subsistence in Small
... have strong attachments to homelands. But this does not necessarily mean that they have continuously occupied a single spot on the planet and made it home for hundreds of generations. A case in point is provided by the first peoples of North America. An examination of the distribution of Native Nort ...
... have strong attachments to homelands. But this does not necessarily mean that they have continuously occupied a single spot on the planet and made it home for hundreds of generations. A case in point is provided by the first peoples of North America. An examination of the distribution of Native Nort ...
Australia ) in Varanus gouldii mosaic burning and varanid lizards
... Karlamilyi (Rudall River) National Park in which two Martu communities (Parnngurr and Punmu) are located. Martu foraging data are available from 347 sample days and 4461 focal person-hours of search and pursuit in hunting and collecting (all seasons, June 2000 – September 2010). The hunting returns ...
... Karlamilyi (Rudall River) National Park in which two Martu communities (Parnngurr and Punmu) are located. Martu foraging data are available from 347 sample days and 4461 focal person-hours of search and pursuit in hunting and collecting (all seasons, June 2000 – September 2010). The hunting returns ...
3. and savannah ecosystems
... underground; secondly, there is a high turnover of those parts of the plant above ground; thirdly, the persistent or perennating parts of the plant are generally located near the soil level. ...
... underground; secondly, there is a high turnover of those parts of the plant above ground; thirdly, the persistent or perennating parts of the plant are generally located near the soil level. ...
Ecological fidelity of functional traits based on species presence
... Andrew Du, David Patterson, and Amelia Villaseñor. Hominid Paleobiology Doctoral Program, Center for the Advanced Study of Hominid Paleobiology, Department of Anthropology, The George Washington University, Washington D.C. 20052, U.S.A. and Department of Paleobiology and ETE Program, National Museu ...
... Andrew Du, David Patterson, and Amelia Villaseñor. Hominid Paleobiology Doctoral Program, Center for the Advanced Study of Hominid Paleobiology, Department of Anthropology, The George Washington University, Washington D.C. 20052, U.S.A. and Department of Paleobiology and ETE Program, National Museu ...
pptx
... that illustrate “resource-partitioning” or “niche-differentiation” explanations for differences in diversity between two sites ...
... that illustrate “resource-partitioning” or “niche-differentiation” explanations for differences in diversity between two sites ...
The Aegean archipelago: a natural laboratory of
... and has been the stage for a very long interaction between human civilizations and local ecosystems. This work presents insights that have been gained from past and current relevant research in the area, highlighting also the importance of the Aegean archipelago as a useful model to address many maj ...
... and has been the stage for a very long interaction between human civilizations and local ecosystems. This work presents insights that have been gained from past and current relevant research in the area, highlighting also the importance of the Aegean archipelago as a useful model to address many maj ...
Restoration ecology
Restoration ecology emerged as a separate field in ecology in the 1980s. It is the scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human intervention and action. The term ""restoration ecology"" is therefore commonly used for the academic study of the process, whereas the term ""ecological restoration"" is commonly used for the actual project or process by restoration practitioners.