America`s Least Wanted: Alien Species
... species—non-native plants and animals introduced into this country either intentionally or by accident. Attention to the problem of alien, or exotic, species often centers on their costs to agriculture, ranching, forestry, and industry. The price they exact on the nation’s forests, grasslands, and w ...
... species—non-native plants and animals introduced into this country either intentionally or by accident. Attention to the problem of alien, or exotic, species often centers on their costs to agriculture, ranching, forestry, and industry. The price they exact on the nation’s forests, grasslands, and w ...
2015 Annual Report - Colorado Natural Heritage Program
... The 2015 SWAP recognizes 150 vertebrates and 85 invertebrates, and - for the first time - includes 117 plants as species of greatest conservation need, supported by 37 distinct habitats. The most pressing conservation issues in Colorado include lack of knowledge, modification of natural systems, non ...
... The 2015 SWAP recognizes 150 vertebrates and 85 invertebrates, and - for the first time - includes 117 plants as species of greatest conservation need, supported by 37 distinct habitats. The most pressing conservation issues in Colorado include lack of knowledge, modification of natural systems, non ...
Outline for the next 2 weeks Habitat loss, degradation and
... Habitat degradation - change that affects many but not all species - may be temporary Habitat transformation/conversion - refers to process of change ...
... Habitat degradation - change that affects many but not all species - may be temporary Habitat transformation/conversion - refers to process of change ...
Do subordinate species punch above their weight? Evidence from
... The functional importance of subordinate species has been mainly investigated through the lens of compensatory dynamics and ecosystem stability (Adler & Bradford, 2002; Suding et al., 2006). If interspecific competition maintains dominance and functional redundancy is high, as expected in species-ri ...
... The functional importance of subordinate species has been mainly investigated through the lens of compensatory dynamics and ecosystem stability (Adler & Bradford, 2002; Suding et al., 2006). If interspecific competition maintains dominance and functional redundancy is high, as expected in species-ri ...
Resource quantity, not resource heterogeneity, maintains plant
... & Abramsky 1993; Srivastava & Lawton 1998). Assuming that not all species exist in every plot, different species will ...
... & Abramsky 1993; Srivastava & Lawton 1998). Assuming that not all species exist in every plot, different species will ...
Dolphins of the Ganga: Few fading, fewer frolicking
... Fishing has been stopped on the Vikramshila Sanctuary minimum water flow requirements of Chambal river in river stretch and conflicts with fishermen are rare. the context of gharial (Gavialis gangeticus) and Gangetic However, Dr. Chaudhary notes that this need not be so dolphin (Platanista gangetica ...
... Fishing has been stopped on the Vikramshila Sanctuary minimum water flow requirements of Chambal river in river stretch and conflicts with fishermen are rare. the context of gharial (Gavialis gangeticus) and Gangetic However, Dr. Chaudhary notes that this need not be so dolphin (Platanista gangetica ...
Lesson 8
... Interesting patterns can occur depending on the relationship of the isoclines to each other: • When the isoclines cross with K1 exceeding K2/. , each species limits the other more than it does itself), population trajectories are such that stable equilibrium points exist at both species carrying ca ...
... Interesting patterns can occur depending on the relationship of the isoclines to each other: • When the isoclines cross with K1 exceeding K2/. , each species limits the other more than it does itself), population trajectories are such that stable equilibrium points exist at both species carrying ca ...
Vegetation Management Plan for the Littoral Rainforest and Coastal
... movement of native animals into and out of the littoral rainforest may be impeded. While the density of Psidium guajava (guava) is currently low in this area, experience overseas shows that this species can become a serious transformer weed (Tye et al. 2002) Over most of the community there are larg ...
... movement of native animals into and out of the littoral rainforest may be impeded. While the density of Psidium guajava (guava) is currently low in this area, experience overseas shows that this species can become a serious transformer weed (Tye et al. 2002) Over most of the community there are larg ...
Two-species interactions
... Plant growth rates and weights have been found to increase in low density populations. Competition for resources is more intense at higher population densities. leads to mortality among competing plants. Self-thinning ...
... Plant growth rates and weights have been found to increase in low density populations. Competition for resources is more intense at higher population densities. leads to mortality among competing plants. Self-thinning ...
- Integrative Biology - University of California, Berkeley
... Species are comprised of populations, and together, those populations determine the geographic distribution of the species. The environment acts on the individuals in populations through time to influence where they can persist and where they thrive. All species have evolved suites of physiological, ...
... Species are comprised of populations, and together, those populations determine the geographic distribution of the species. The environment acts on the individuals in populations through time to influence where they can persist and where they thrive. All species have evolved suites of physiological, ...
Galapagos vertebrates: endangered status and conservation actions
... distributed along the coasts of Fernandina and Isabela and the northern coast of Floreana. The flightless cormorant, Phalacrocorax harrisi, is found on the coasts of Fernandina and Isabela. Both species are catalogued on the IUCN’s Red List as Endangered1. The threats include introduced species, suc ...
... distributed along the coasts of Fernandina and Isabela and the northern coast of Floreana. The flightless cormorant, Phalacrocorax harrisi, is found on the coasts of Fernandina and Isabela. Both species are catalogued on the IUCN’s Red List as Endangered1. The threats include introduced species, suc ...
28.3 What Are The Effects Of Predator–Prey Interactions?
... encompasses all aspects of its way of life. • A species’ niche includes the particular type of habitat in which it lives, the environmental factors necessary for its survival, and the methods by which it acquires its nutrients. • In sum, a species’ ecological niche is the combination of all factors ...
... encompasses all aspects of its way of life. • A species’ niche includes the particular type of habitat in which it lives, the environmental factors necessary for its survival, and the methods by which it acquires its nutrients. • In sum, a species’ ecological niche is the combination of all factors ...
Exergetic Model of Secondary Successions for Plant Communities in
... species by species [5]. Tansley developed similar concepts as those of Clements; nevertheless, he argues about the possibility of reaching multiple “climax” states through its “policlimax” concept. Westoby et al. [6] developed a new successional model, originally made for rangelands, though suitable ...
... species by species [5]. Tansley developed similar concepts as those of Clements; nevertheless, he argues about the possibility of reaching multiple “climax” states through its “policlimax” concept. Westoby et al. [6] developed a new successional model, originally made for rangelands, though suitable ...
Genetic analysis of aspen (Populus tremula L. and Populus
... 1.1 Ecological importance of genetic diversity Biodiversity is the full range of variety and variability within and among living organisms and the ecological complexes in which they occur, including diversity at the levels of individual, species and community (Jensen et al. 1993). It is driven funda ...
... 1.1 Ecological importance of genetic diversity Biodiversity is the full range of variety and variability within and among living organisms and the ecological complexes in which they occur, including diversity at the levels of individual, species and community (Jensen et al. 1993). It is driven funda ...
The University of Chicago
... 117). Group selection may explain the evolutionof traitsthatdo not necessarily benefitthe individualwhen individualsare organizedinto small, isolated populations. In these structureddemes, selection between populations may override selectionwithina population(Wright1969; D. S. Wilson 1980,p. 38; Lei ...
... 117). Group selection may explain the evolutionof traitsthatdo not necessarily benefitthe individualwhen individualsare organizedinto small, isolated populations. In these structureddemes, selection between populations may override selectionwithina population(Wright1969; D. S. Wilson 1980,p. 38; Lei ...
Apex Predators of Costa Rica - Point Loma Nazarene University
... face a range of threats including habitat loss, fragmentation, illegal hunting, and retaliatory killing. The decline of these top predators has been associated with loss of biodiversity, trophic cascades of herbivore and plant populations, a decline in mammalian fauna known as the ‘empty forest synd ...
... face a range of threats including habitat loss, fragmentation, illegal hunting, and retaliatory killing. The decline of these top predators has been associated with loss of biodiversity, trophic cascades of herbivore and plant populations, a decline in mammalian fauna known as the ‘empty forest synd ...
a framework of values: reasons for conserving biodiversity and
... Before examining the issue, it is a legitimate question to ask why we need such a discussion – in a nutshell, what are the reasons for asking for reasons. It may be argued, for instance, that the environmental crisis and the climate change that our planet is currently experiencing are producing effe ...
... Before examining the issue, it is a legitimate question to ask why we need such a discussion – in a nutshell, what are the reasons for asking for reasons. It may be argued, for instance, that the environmental crisis and the climate change that our planet is currently experiencing are producing effe ...
Gardenification of tropical conserved wildlands
... usual order.’’ Incidentally, you already knew this because it was part of the Yellow Pages account for that species, part of the Species Home Page for that species. A critical element of sample preparation in the field was that a tiny bit of the purported sample was removed and plunked into a pocket ...
... usual order.’’ Incidentally, you already knew this because it was part of the Yellow Pages account for that species, part of the Species Home Page for that species. A critical element of sample preparation in the field was that a tiny bit of the purported sample was removed and plunked into a pocket ...
Competition Powerpoint
... Consequently, managing an ecosystem for high biodiversity may require periodic or spatially-patchy disturbances ...
... Consequently, managing an ecosystem for high biodiversity may require periodic or spatially-patchy disturbances ...
Ecological restoration at Mainland Islands in New Zealand
... became increasingly apparent however, that `marooning' vulnerable native species on predator-free islands was a key to averting further extinctions. As management techniques were re®ned the number of translocations to establish new populations of native species on islands has increased markedly (Vei ...
... became increasingly apparent however, that `marooning' vulnerable native species on predator-free islands was a key to averting further extinctions. As management techniques were re®ned the number of translocations to establish new populations of native species on islands has increased markedly (Vei ...
Neutral Macroecology - McGill Biology
... review of the distribution of range size, Gaston remarked that “range-size distributions have been found to be well described by a log-series model” (21). The mechanisms responsible for this pattern have been identified variously as habitat availability, habitat generalism, breadth of environmental ...
... review of the distribution of range size, Gaston remarked that “range-size distributions have been found to be well described by a log-series model” (21). The mechanisms responsible for this pattern have been identified variously as habitat availability, habitat generalism, breadth of environmental ...
the intermediate disturbance hypothesis and its applicability to
... It is interesting that Wilson (1995) does not dispute the application of “succession” to phytoplankton; neither does he reject the crossscaling argument, for he views the frequency of disturbance in the context of generation times. However, terrestrial plant ecologists have not always clearly distin ...
... It is interesting that Wilson (1995) does not dispute the application of “succession” to phytoplankton; neither does he reject the crossscaling argument, for he views the frequency of disturbance in the context of generation times. However, terrestrial plant ecologists have not always clearly distin ...
Environmental impact of Belgian offshore wind farms
... • Climax condition not reached after six years… • Continuation of long-term series for all ecosystem components • Likelihood of impact detection (statistical power) • Linked to research effort, data noise and impact size • Scientifically underpinned research effort allocation in space and time • Mea ...
... • Climax condition not reached after six years… • Continuation of long-term series for all ecosystem components • Likelihood of impact detection (statistical power) • Linked to research effort, data noise and impact size • Scientifically underpinned research effort allocation in space and time • Mea ...
Two degrees of separation in complex food webs
... between cannibals, which have d ⫽ 1, and other species, which have d ⫽ 2. Our method alters D among our webs an average of ⬍1% compared with employing the more standard convention. Although there are hundreds of food webs in the literature, the vast majority have been criticized for being incomplete ...
... between cannibals, which have d ⫽ 1, and other species, which have d ⫽ 2. Our method alters D among our webs an average of ⬍1% compared with employing the more standard convention. Although there are hundreds of food webs in the literature, the vast majority have been criticized for being incomplete ...
Than Muck Munchers: Detritivores Impact Primary Producer Food Web
... communities dominated by species that consume and limit microbial decomposition without directly grazing leaf litter will also limit plant primary production because nutrient resources will be retained in leaf litter rather than being mineralized for plant uptake. Objective 2: To determine the influ ...
... communities dominated by species that consume and limit microbial decomposition without directly grazing leaf litter will also limit plant primary production because nutrient resources will be retained in leaf litter rather than being mineralized for plant uptake. Objective 2: To determine the influ ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.