managing fisheries effects on marine food webs
... CEMP was initiated in 1986 to detect significant changes to the ecosystem, particularly in predators of krill, and to signal when such changes were the consequences of fishing. The CEMP is intended, in this way, to inform the commission when fishing affects species dependent on the target species. CEMP ...
... CEMP was initiated in 1986 to detect significant changes to the ecosystem, particularly in predators of krill, and to signal when such changes were the consequences of fishing. The CEMP is intended, in this way, to inform the commission when fishing affects species dependent on the target species. CEMP ...
Carrying Capacity of Ecosystems
... 9 of the 12 native rainforest birds are extinct in nature Example, the guam rail, a flightless bird, had a population of ~80,000 in 1968 but was extinct by 1986. The snakes have greatly affected the population size of many of the small reptile and mammals on the island. Snakes get into homes and the ...
... 9 of the 12 native rainforest birds are extinct in nature Example, the guam rail, a flightless bird, had a population of ~80,000 in 1968 but was extinct by 1986. The snakes have greatly affected the population size of many of the small reptile and mammals on the island. Snakes get into homes and the ...
LOCAL AND REGIONAL PATTERNS OF SPECIES RICHNESS IN
... These patterns suggest that for those types of Central European vegetation that developed independently of human influence in the Pleistocene or early Holocene (dry grasslands, deciduous forests), there are larger pools of calcicole than calcifuge species. This pattern is also found at the level of ...
... These patterns suggest that for those types of Central European vegetation that developed independently of human influence in the Pleistocene or early Holocene (dry grasslands, deciduous forests), there are larger pools of calcicole than calcifuge species. This pattern is also found at the level of ...
Important conservation research topics on terrestrial
... name, rare): Confined to Herekopare Island, Foveaux Strait. Little ecological information is available. The population is presumably relatively secure because cats have been eradicated. Research: (rank = 3) Survey work is required to determine status on Herekopare Island and preferred habitat so tha ...
... name, rare): Confined to Herekopare Island, Foveaux Strait. Little ecological information is available. The population is presumably relatively secure because cats have been eradicated. Research: (rank = 3) Survey work is required to determine status on Herekopare Island and preferred habitat so tha ...
Holism and reductionism in biology and ecology Looijen
... distinguish between ontological, epistemological and methodological aspects of these problems. On the epistemological level the reduction problem in ecology may be formulated as the question whether laws and theories about communities and ecosystems can be reduced to theories about populations or in ...
... distinguish between ontological, epistemological and methodological aspects of these problems. On the epistemological level the reduction problem in ecology may be formulated as the question whether laws and theories about communities and ecosystems can be reduced to theories about populations or in ...
Species At Risk in Northern Ontario Guide
... • Female caribou, which also have antlers, only birth one calf per year ...
... • Female caribou, which also have antlers, only birth one calf per year ...
7 Colorado Desert Region - Borrego Springs Chamber of Commerce
... the additional moisture supplied by summer rainfall fosters the germination of summer annual plants and supports smoketree, ironwood, and palo verde trees. Common desert wildlife include mule deer, bobcat, desert kangaroo rat, cactus mouse, black-tailed jackrabbit, Gambel’s quail, and red-diamond ra ...
... the additional moisture supplied by summer rainfall fosters the germination of summer annual plants and supports smoketree, ironwood, and palo verde trees. Common desert wildlife include mule deer, bobcat, desert kangaroo rat, cactus mouse, black-tailed jackrabbit, Gambel’s quail, and red-diamond ra ...
Some historic landmarks
... Community Ecology Some historic landmarks “Null hypotheses [models] entertain the possibility that nothing has happened…” (Strong 1980) “A null model is a pattern-generating model that is based on randomization of ecological data or random sampling from a known or imagined distribution. The null mo ...
... Community Ecology Some historic landmarks “Null hypotheses [models] entertain the possibility that nothing has happened…” (Strong 1980) “A null model is a pattern-generating model that is based on randomization of ecological data or random sampling from a known or imagined distribution. The null mo ...
Differences in diet between two rodent species, Mastomys
... (Krebs 1999). Theoretical and empirical studies have shown that partial separation of ecological niches in terms of diet or activity pattern or space is necessary to allow the coexistence of species (Giller 1984; Putman 1996). Resource partitioning among small mammal species has been the subject of ...
... (Krebs 1999). Theoretical and empirical studies have shown that partial separation of ecological niches in terms of diet or activity pattern or space is necessary to allow the coexistence of species (Giller 1984; Putman 1996). Resource partitioning among small mammal species has been the subject of ...
Effects of environmental change on zoonotic disease risk: an
... includes impacts on the environment and biodiversity. In a wider sense, the term refers to everything that is originated from human actions. BAM diagram: a Venn diagram in which the interactions among the Biotic niche, the Abiotic niche, and the Mobility are expressed. This diagram has profound impl ...
... includes impacts on the environment and biodiversity. In a wider sense, the term refers to everything that is originated from human actions. BAM diagram: a Venn diagram in which the interactions among the Biotic niche, the Abiotic niche, and the Mobility are expressed. This diagram has profound impl ...
Null Models in Ecology
... marginal totals in the original islands x species table constant. The third constraint arises because some species are more likely than others to be found on islands of particular sizes-some species are restricted to small islands, while others are found only on larger ones. [The same phenomenon occ ...
... marginal totals in the original islands x species table constant. The third constraint arises because some species are more likely than others to be found on islands of particular sizes-some species are restricted to small islands, while others are found only on larger ones. [The same phenomenon occ ...
Ecological and evolutionary implications of food subsidies from
... Humans began as opportunistic omnivorous species but the first evidence of anthropogenic food subsidies comes from hunter-gatherer societies, in the form of food remains exploited by other scavenging opportunistic species (e.g. prey carcasses). Those subsidies have increased substantially since the ...
... Humans began as opportunistic omnivorous species but the first evidence of anthropogenic food subsidies comes from hunter-gatherer societies, in the form of food remains exploited by other scavenging opportunistic species (e.g. prey carcasses). Those subsidies have increased substantially since the ...
Habitat (which is Latin for "it inhabits") is the place where a particular
... More formally, the niche includes how a population responds to the abundance of its resources and enemies (e. g., by growing when resources are abundant, and predators, parasites and pathogens are scarce) and how it affects those same factors (e.g., by reducing the abundance of resources through con ...
... More formally, the niche includes how a population responds to the abundance of its resources and enemies (e. g., by growing when resources are abundant, and predators, parasites and pathogens are scarce) and how it affects those same factors (e.g., by reducing the abundance of resources through con ...
Ecological and evolutionary implications of food subsidies
... Humans began as opportunistic omnivorous species but the first evidence of anthropogenic food subsidies comes from hunter-gatherer societies, in the form of food remains exploited by other scavenging opportunistic species (e.g. prey carcasses). Those subsidies have increased substantially since the ...
... Humans began as opportunistic omnivorous species but the first evidence of anthropogenic food subsidies comes from hunter-gatherer societies, in the form of food remains exploited by other scavenging opportunistic species (e.g. prey carcasses). Those subsidies have increased substantially since the ...
Species diversity and dominance-richness relationships for ground
... richness (PARR & GIBB 2009, WITTMAN & al. 2010), although it is unclear if the relationship consistently scales up to the assemblage level (PARR 2008, BACCARO & al. 2012). The dominance-species richness relationship at baits is typically unimodal (humped), due to the combined effects of environmenta ...
... richness (PARR & GIBB 2009, WITTMAN & al. 2010), although it is unclear if the relationship consistently scales up to the assemblage level (PARR 2008, BACCARO & al. 2012). The dominance-species richness relationship at baits is typically unimodal (humped), due to the combined effects of environmenta ...
Chapter 14: Conserving Biodiversity
... Energy flow - only a small portion ( ~10%) of the energy in one level of a trophic pyramid can be converted to biomass at the next level Diversity also affects energy flow, such as in more diverse grasslands, more biomass is ...
... Energy flow - only a small portion ( ~10%) of the energy in one level of a trophic pyramid can be converted to biomass at the next level Diversity also affects energy flow, such as in more diverse grasslands, more biomass is ...
Framework - CCE LTER
... B. Identify which human actions translate into press versus pulse disturbances across different ecosystems? C. What are the directions (or predicted directions) of change? D. Which elements of human institutions incentive structures lead to those actions? ...
... B. Identify which human actions translate into press versus pulse disturbances across different ecosystems? C. What are the directions (or predicted directions) of change? D. Which elements of human institutions incentive structures lead to those actions? ...
Indirect effects of food web diversity and productivity
... To monitor food web diversity, rotifers and protists were sampled every 3–4 days up to day 22 and then every 3–6 days up to the final date of the experiment. Microcosms were first gently mixed and between 900 and 1500 µl medium were removed and examined with a dissecting microscope. Rare taxa were e ...
... To monitor food web diversity, rotifers and protists were sampled every 3–4 days up to day 22 and then every 3–6 days up to the final date of the experiment. Microcosms were first gently mixed and between 900 and 1500 µl medium were removed and examined with a dissecting microscope. Rare taxa were e ...
Indirect effects of food web diversity and productivity on bacterial
... To monitor food web diversity, rotifers and protists were sampled every 3–4 days up to day 22 and then every 3–6 days up to the final date of the experiment. Microcosms were first gently mixed and between 900 and 1500 µl medium were removed and examined with a dissecting microscope. Rare taxa were e ...
... To monitor food web diversity, rotifers and protists were sampled every 3–4 days up to day 22 and then every 3–6 days up to the final date of the experiment. Microcosms were first gently mixed and between 900 and 1500 µl medium were removed and examined with a dissecting microscope. Rare taxa were e ...
Bio-diversity Issues..
... import and export of domestic, exotic or nearly extinct animals and plants. • Top of all the most effective way to conserve biological diversity is to prevent the degradation of habitats ...
... import and export of domestic, exotic or nearly extinct animals and plants. • Top of all the most effective way to conserve biological diversity is to prevent the degradation of habitats ...
Squatter Pigeon (southern subspecies
... The Scientific Committee, established by the Threatened Species Conservation Act 1995 (the Act), has made a Final Determination to list the Squatter Pigeon (southern subspecies) Geophaps scripta scripta (Temminck, 1821) as a CRITICALLY ENDANGERED SPECIES in Part 1 of Schedule 1A of the Act and, as a ...
... The Scientific Committee, established by the Threatened Species Conservation Act 1995 (the Act), has made a Final Determination to list the Squatter Pigeon (southern subspecies) Geophaps scripta scripta (Temminck, 1821) as a CRITICALLY ENDANGERED SPECIES in Part 1 of Schedule 1A of the Act and, as a ...
UPDATING WATERBIRD POPULATION ESTIMATES WITHIN THE
... tinct populations/species can be determined and, based on the trends observed, research and conservation policies can be prioritized in each site (Brouwer et al., 2003). The availability of this information is also essential for putting into practice and updating the distinct international agreement ...
... tinct populations/species can be determined and, based on the trends observed, research and conservation policies can be prioritized in each site (Brouwer et al., 2003). The availability of this information is also essential for putting into practice and updating the distinct international agreement ...
The architecture of mutualistic networks minimizes competition and
... been widely used in theoretical ecology, giving very interesting insights on the properties of real communities. However, we believe that other interesting insights can be gained by considering structural stability, i.e., the stability with respect to modifications in the parameters of the dynamical ...
... been widely used in theoretical ecology, giving very interesting insights on the properties of real communities. However, we believe that other interesting insights can be gained by considering structural stability, i.e., the stability with respect to modifications in the parameters of the dynamical ...
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.