Modern lessons from ancient food webs
... and small. To that end, ecologists have adopted new tools designed to investigate ecological networks and help us uncover and understand past extinctions and their community-level consequences in the hopes of predicting those in the future. To do so, we compare reconstructions of past ecological net ...
... and small. To that end, ecologists have adopted new tools designed to investigate ecological networks and help us uncover and understand past extinctions and their community-level consequences in the hopes of predicting those in the future. To do so, we compare reconstructions of past ecological net ...
Disturbance Stable States
... will allow high diversity by maintaining communities in a nonequilibrium state (Connell 1978) -- disturbance-mediated coexistence ...
... will allow high diversity by maintaining communities in a nonequilibrium state (Connell 1978) -- disturbance-mediated coexistence ...
Digestive Direction Sheet - Sonoma Valley High School
... A) Be able to discuss and describe examples of predator– prey relationships and how natural selection has resulted in organisms being shaped and colored as they are. (Pages 399-400) B) Discuss two types of mimicry and why it is an advantage for some organisms, such as the King Snake or certain types ...
... A) Be able to discuss and describe examples of predator– prey relationships and how natural selection has resulted in organisms being shaped and colored as they are. (Pages 399-400) B) Discuss two types of mimicry and why it is an advantage for some organisms, such as the King Snake or certain types ...
Preface 1 PDF
... have particularly been hampered for the European megafauna in the last few centuries and therefore rewilding also promotes wildlife comeback. Ultimately, rewilding is better defined by the strategies that aim at allowing natural processes to regain dominance in landscapes rather than by some fixed s ...
... have particularly been hampered for the European megafauna in the last few centuries and therefore rewilding also promotes wildlife comeback. Ultimately, rewilding is better defined by the strategies that aim at allowing natural processes to regain dominance in landscapes rather than by some fixed s ...
Artificial Lighting - The Nature Conservancy
... especially susceptible to behavioral changes as a result of artificial lighting.11,12 Moreover, because many species are reliant on a specific habitat (e.g., wetland, rocky outcrop) and have limited mobility, they might be less able to move in response to the presence of artificial lighting.12 For e ...
... especially susceptible to behavioral changes as a result of artificial lighting.11,12 Moreover, because many species are reliant on a specific habitat (e.g., wetland, rocky outcrop) and have limited mobility, they might be less able to move in response to the presence of artificial lighting.12 For e ...
2.71 mb pdf - Environmental Information Service
... Table 1a), further sampling was carried out by Watters and colleagues (Watters et al., 2014, this issue), on which the species description is based. Collections were made in the same area by Tweddle et al. (2004) followed by more extensive surveys in the following decade in the distribution range of ...
... Table 1a), further sampling was carried out by Watters and colleagues (Watters et al., 2014, this issue), on which the species description is based. Collections were made in the same area by Tweddle et al. (2004) followed by more extensive surveys in the following decade in the distribution range of ...
Long term response of six diatom species to eutrophication
... 1) Temperature fluctuated regularly with time whereas salinity fluctuated irregularly (Fig. 1). The ranges and means of these parameters for the 5-year period did not differ between stations (Tab. 1). 2) The eutrophie character of station S1 is indicated by the range and mean (P-P04 : 1.57 J.Lg-at/1 ...
... 1) Temperature fluctuated regularly with time whereas salinity fluctuated irregularly (Fig. 1). The ranges and means of these parameters for the 5-year period did not differ between stations (Tab. 1). 2) The eutrophie character of station S1 is indicated by the range and mean (P-P04 : 1.57 J.Lg-at/1 ...
Mid-Atlantic/Southern New England BCR Plan
... 5. Identify the highest priority monitoring and research needs for birds and habitats within the BCR. 6. Create a communication platform that encourages dialogue on bird conservation activities both within and between states and partners at the BCR scale. ...
... 5. Identify the highest priority monitoring and research needs for birds and habitats within the BCR. 6. Create a communication platform that encourages dialogue on bird conservation activities both within and between states and partners at the BCR scale. ...
PDF
... generally in the forms of direct damages to facilities, human health, natural resources, and indirect damages from ecological change. Ecological change may commonly include losses in water or soil quality or quantity, biodiversity and resiliency losses, and productive resource losses. The expected d ...
... generally in the forms of direct damages to facilities, human health, natural resources, and indirect damages from ecological change. Ecological change may commonly include losses in water or soil quality or quantity, biodiversity and resiliency losses, and productive resource losses. The expected d ...
12 Terrestrial fauna - The Department of State Development
... assess the presence or likely presence of Endangered, Vulnerable or Rare (EVR) vertebrates as defined under the Nature Conservation Act 1992 (NC Act) and/or the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) ...
... assess the presence or likely presence of Endangered, Vulnerable or Rare (EVR) vertebrates as defined under the Nature Conservation Act 1992 (NC Act) and/or the Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) ...
1981
... vegetations. Sheep were introduced in the Sierra Negra area of southeastern lsabela in 1962 and were mentioned in CDRS reports for 1964. They now appear to be extinct, perhaps because of predation by the feral dogs, which are otherwise the greatest single threat to wildlife on Isabela. MONKEYS There ...
... vegetations. Sheep were introduced in the Sierra Negra area of southeastern lsabela in 1962 and were mentioned in CDRS reports for 1964. They now appear to be extinct, perhaps because of predation by the feral dogs, which are otherwise the greatest single threat to wildlife on Isabela. MONKEYS There ...
Mt. Mansfield Amphibian Monitoring Update 2010
... one possible explanation for a localized long-term decline, but we have no data to support a significant change in habitat. Spring Peepers breed primarily in open, shallow, and well-vegetated wetlands. If local breeding habitat were flooded by beaver and/or exposed to trout, populations might well b ...
... one possible explanation for a localized long-term decline, but we have no data to support a significant change in habitat. Spring Peepers breed primarily in open, shallow, and well-vegetated wetlands. If local breeding habitat were flooded by beaver and/or exposed to trout, populations might well b ...
Bumblebees
... Shrill carder bumblebee, Bombus sylvarum. Has undergone a rapid decline and is now largely confined to only 5 remaining meta-populations. Brown-banded carder bee, Bombus humilis. Now it is mainly coastal in southwest England and south Wales. It also occurs on Salisbury Plain and the Thames Gateway. ...
... Shrill carder bumblebee, Bombus sylvarum. Has undergone a rapid decline and is now largely confined to only 5 remaining meta-populations. Brown-banded carder bee, Bombus humilis. Now it is mainly coastal in southwest England and south Wales. It also occurs on Salisbury Plain and the Thames Gateway. ...
ecosystem
... very wet, salty muds found along the ocean shore. Since they are able to trap additional sediments, they tend to extend farther seaward as they ...
... very wet, salty muds found along the ocean shore. Since they are able to trap additional sediments, they tend to extend farther seaward as they ...
answers
... Niche: The blue heron lives near the water so they can fish and nest near bushes or trees. Their long legs also help them move around in deeper water. The blue heron mainly feeds alone but will put up with other birds in the area. Competition: Coyotes and foxes share some common food sources but usu ...
... Niche: The blue heron lives near the water so they can fish and nest near bushes or trees. Their long legs also help them move around in deeper water. The blue heron mainly feeds alone but will put up with other birds in the area. Competition: Coyotes and foxes share some common food sources but usu ...
Fulltext PDF - Indian Academy of Sciences
... Most conservation biologists will agree that all living species must be protected, not only because they possess ecological, economic and cultural value, but also for ethical reasons. In practice, however, some species are considered more worthy of protection than are others. Such decisions to exten ...
... Most conservation biologists will agree that all living species must be protected, not only because they possess ecological, economic and cultural value, but also for ethical reasons. In practice, however, some species are considered more worthy of protection than are others. Such decisions to exten ...
Frequently Asked Questions
... hosts. Part of our concern is since containerized nursery stock is shipped, it can serve as a pathway for pathogen introductions all around the world. There are an infinite combination of plant species, ecosystems and environmental conditions and a pathogen that is benign in one area may be harmful ...
... hosts. Part of our concern is since containerized nursery stock is shipped, it can serve as a pathway for pathogen introductions all around the world. There are an infinite combination of plant species, ecosystems and environmental conditions and a pathogen that is benign in one area may be harmful ...
Appendix 2. Revision of the questions on the environmental impact
... closely-related species or on data for the target species from the region of origin. Although the concept of the “environmental impact” of a native species on native biodiversity and ecosystems is debatable, in some cases recently expanding native species clearly have an environmental impact, result ...
... closely-related species or on data for the target species from the region of origin. Although the concept of the “environmental impact” of a native species on native biodiversity and ecosystems is debatable, in some cases recently expanding native species clearly have an environmental impact, result ...
introduced and invasive fish species
... abundance of exotic species and the decline of native species is surprisingly poorly documented. While invading species have undoubtedly been responsible declines of native fishes, the invaded environments are typically already severely altered by human activity. Because invasion is a natural proces ...
... abundance of exotic species and the decline of native species is surprisingly poorly documented. While invading species have undoubtedly been responsible declines of native fishes, the invaded environments are typically already severely altered by human activity. Because invasion is a natural proces ...
Tower Hamlets Local Biodiversity Action Plan 2014
... policies and initiatives, and with national and London-wide biodiversity plans. It then identifies priority habitats and species, setting objectives and, where appropriate, targets for each. Finally, there are four action plans. 1.4.2 Biodiversity Action Plans are generally made up of a series of ha ...
... policies and initiatives, and with national and London-wide biodiversity plans. It then identifies priority habitats and species, setting objectives and, where appropriate, targets for each. Finally, there are four action plans. 1.4.2 Biodiversity Action Plans are generally made up of a series of ha ...
Ecology and the Environmental Sciences
... Based on first principles of physics and chemistry (you know this too!), YOU would predict that as CO2 in the atmosphere increases ~30% over five decades, temperature in the atmosphere would do which of the following: decrease, increase or remain unchanged? ...
... Based on first principles of physics and chemistry (you know this too!), YOU would predict that as CO2 in the atmosphere increases ~30% over five decades, temperature in the atmosphere would do which of the following: decrease, increase or remain unchanged? ...
PowerPoint - Susan Schwinning
... parties. However, benefits generally outweigh the costs. Mutualism is obligate, facultative, or obligate-facultative. Mutualistic relationships can be precarious: if mutually obligate, one species’ demise leads to the other species’ demise as well. There is a tendency for cheaters to invade or evolv ...
... parties. However, benefits generally outweigh the costs. Mutualism is obligate, facultative, or obligate-facultative. Mutualistic relationships can be precarious: if mutually obligate, one species’ demise leads to the other species’ demise as well. There is a tendency for cheaters to invade or evolv ...
The Value of Biodiversity - Charles Perrings
... establishing the capital theoretical basis for exploiting biological stocks. The extension of such work to cover the exploitation of multiple species has made it possible to understand the effect of species interactions on co-produced ecosystem services (Tilman et al., 2005; Eichner and Pethig, 2005 ...
... establishing the capital theoretical basis for exploiting biological stocks. The extension of such work to cover the exploitation of multiple species has made it possible to understand the effect of species interactions on co-produced ecosystem services (Tilman et al., 2005; Eichner and Pethig, 2005 ...
Species Redundancy and Ecosystem Reliability
... (Root 1967), trophic levels (Hairston et al. 1960), and functional groups (Raunkier 1934)—is a useful device for understanding complexity in ecological systems (Körner 1993; Gitay et al. 1996). Within the context of ecosystem functioning, functional groups may be defined as groups of species that sh ...
... (Root 1967), trophic levels (Hairston et al. 1960), and functional groups (Raunkier 1934)—is a useful device for understanding complexity in ecological systems (Körner 1993; Gitay et al. 1996). Within the context of ecosystem functioning, functional groups may be defined as groups of species that sh ...
Consortium for Educational Communication Ans.
... Q.14. What is a Xerosere and write a short note on the Crustoselichen stage? Ans. Xerosere is defined as a succession which begins in dry habitat like rocks or dry sand and reaches a climax. Crustose-lichen stage: The first stage of xerosere is crustoselichen stage. The soil is absent for the comple ...
... Q.14. What is a Xerosere and write a short note on the Crustoselichen stage? Ans. Xerosere is defined as a succession which begins in dry habitat like rocks or dry sand and reaches a climax. Crustose-lichen stage: The first stage of xerosere is crustoselichen stage. The soil is absent for the comple ...
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.