MICHIGAN’S WILDLIFE ACTION PLAN
... unpredictable. This uncertainty has resulted in conservation efforts that are opportunistic rather than strategic, especially for declining species which are not yet listed as threatened or endangered, and for taxonomic groups that remain relatively unstudied, such as some snails and insects. Coordi ...
... unpredictable. This uncertainty has resulted in conservation efforts that are opportunistic rather than strategic, especially for declining species which are not yet listed as threatened or endangered, and for taxonomic groups that remain relatively unstudied, such as some snails and insects. Coordi ...
Kratina Food Web Persistence 2015 Accepted
... additive nonprey effects. These findings suggest that non-trophic interaction modification is ...
... additive nonprey effects. These findings suggest that non-trophic interaction modification is ...
Food Webs, Competition Graphs, and Habitat Formation
... Early on, the relationships between mathematics and the physical sciences have been appreciated and often have been used as a reason to study mathematics and its applications to the physical sciences. However, the interplay between mathematics and the biological sciences was understood by only a few ...
... Early on, the relationships between mathematics and the physical sciences have been appreciated and often have been used as a reason to study mathematics and its applications to the physical sciences. However, the interplay between mathematics and the biological sciences was understood by only a few ...
Literature review on the American bullfrog
... 15°C, adults are generally inactive, eggs will not hatch, and larvae will not develop (Viparina and Just, 1975), although Mudde (1992) gives a broader thermal range for bullfrog activity: 8 – 37 °C. High temperatures in summer (above 26°C) are preferred by the adults and are considered a key determi ...
... 15°C, adults are generally inactive, eggs will not hatch, and larvae will not develop (Viparina and Just, 1975), although Mudde (1992) gives a broader thermal range for bullfrog activity: 8 – 37 °C. High temperatures in summer (above 26°C) are preferred by the adults and are considered a key determi ...
Purple Loosestrife - Biological Control of Invasive Plants in the
... reddish-purple petals (10 to 15 mm in length). Flowers are tri-morphic with short, medium, and long petals and stamens. Many ornamental varieties have been developed, some through introgression with the native L. alatum (Ottenbreit and Staniforth, 1994). Until recently, Lythrum virgatum L. was treat ...
... reddish-purple petals (10 to 15 mm in length). Flowers are tri-morphic with short, medium, and long petals and stamens. Many ornamental varieties have been developed, some through introgression with the native L. alatum (Ottenbreit and Staniforth, 1994). Until recently, Lythrum virgatum L. was treat ...
A Ravine`s Web of Life - Park District of Highland Park
... step out of the circle. Before they step out have them tug on their part of the yarn. Anyone else who feels the tug should step out as well. 11. Explain that this is an exaggerated model of the ripple effect of changes made to an ecosystem. Changes in the food web could be caused by numerous factors ...
... step out of the circle. Before they step out have them tug on their part of the yarn. Anyone else who feels the tug should step out as well. 11. Explain that this is an exaggerated model of the ripple effect of changes made to an ecosystem. Changes in the food web could be caused by numerous factors ...
Red King Crab (Paralithodes camtschaticus) - GB non
... P. camtschaticus is invasive in the Barents Sea. As a large, highly mobile generalist predator, P. camtschaticus can significantly impact native benthic communities through predation and competition, particularly during the postmating/molting spring period when crabs feed most intensively (Jørgensen ...
... P. camtschaticus is invasive in the Barents Sea. As a large, highly mobile generalist predator, P. camtschaticus can significantly impact native benthic communities through predation and competition, particularly during the postmating/molting spring period when crabs feed most intensively (Jørgensen ...
Manier MK., and SJ. Arnold. 2006. Ecological correlates of population genetic structure: a comparative approach using a vertebrate metacommunity. Proceedings of the Royal Society B 273:3001-3009.
... (two garter snakes and an anuran) that occupy a common landscape. Using multiple regression analysis, we found that species interactions were more important in explaining variation in population genetic parameters than habitat and nearest-neighbour characteristics. Effective population size was best ...
... (two garter snakes and an anuran) that occupy a common landscape. Using multiple regression analysis, we found that species interactions were more important in explaining variation in population genetic parameters than habitat and nearest-neighbour characteristics. Effective population size was best ...
Biological Resources Assessment of the Proposed
... Impacts were assessed based on CEQA guidance and definitions pertaining to significance determinations and thresholds of significance, as follows: During the CEQA review process, environmental impacts are assessed and a significance determination provided based on pre-established thresholds of signi ...
... Impacts were assessed based on CEQA guidance and definitions pertaining to significance determinations and thresholds of significance, as follows: During the CEQA review process, environmental impacts are assessed and a significance determination provided based on pre-established thresholds of signi ...
HighFour Biology Round 4 Category C: Grades 9 – 10 Tuesday
... Biological augmentation is an approach in restoration ecology that uses organisms to add essential materials to a degraded ecosystem. ...
... Biological augmentation is an approach in restoration ecology that uses organisms to add essential materials to a degraded ecosystem. ...
Legume species identity and soil nitrogen supply elevated atmospheric [CO
... Introduction Because of their symbiotic relationship with bacteria that reduce atmospheric N2 to NH3, legumes may be less N limited, and may therefore exhibit a greater productivity response to elevated [CO2], than species that do not fix N. Indeed, several studies report growth stimulation of legum ...
... Introduction Because of their symbiotic relationship with bacteria that reduce atmospheric N2 to NH3, legumes may be less N limited, and may therefore exhibit a greater productivity response to elevated [CO2], than species that do not fix N. Indeed, several studies report growth stimulation of legum ...
Rangeland Weed Management - KSRE Bookstore
... Applications of 2,4-D and other herbicides have reduced forb populations on many grasslands. Removing all forbs from rangeland with indiscriminate spraying, however, is not desirable. Elimination or large scale reduction of beneficial forbs will reduce animal gains, disturb wildlife habitat, and pro ...
... Applications of 2,4-D and other herbicides have reduced forb populations on many grasslands. Removing all forbs from rangeland with indiscriminate spraying, however, is not desirable. Elimination or large scale reduction of beneficial forbs will reduce animal gains, disturb wildlife habitat, and pro ...
Invasion processes and causes of success.
... of ant communities, may highlight intrinsic differences between communities that have formed in separate biogeographic regions, and may suggest possible methods of control. Understanding ant invasion processes and causes of success thus has both basic and applied relevance. Human activities have int ...
... of ant communities, may highlight intrinsic differences between communities that have formed in separate biogeographic regions, and may suggest possible methods of control. Understanding ant invasion processes and causes of success thus has both basic and applied relevance. Human activities have int ...
Functional diversity within a morphologically conservative genus of
... Lee et al., 1980. Atlas of North American Freshwater Fishes. N.C. State Museum of Natural Sciences. ...
... Lee et al., 1980. Atlas of North American Freshwater Fishes. N.C. State Museum of Natural Sciences. ...
Lizard population dynamics in a controlled landscape of Florida Scrub
... As the Florida Scrub is disappearing, so may be its many endemics. One well known scrub endemic is the Florida Scrub Lizard, Sceloporus woodi; populations of S. woodi are dwindling with the evanescence of the Florida Scrub. On some locations in the ONF, S. woodi seems to be common, and it is this pu ...
... As the Florida Scrub is disappearing, so may be its many endemics. One well known scrub endemic is the Florida Scrub Lizard, Sceloporus woodi; populations of S. woodi are dwindling with the evanescence of the Florida Scrub. On some locations in the ONF, S. woodi seems to be common, and it is this pu ...
Predator–prey size relationships in an African large
... based on records of found carcasses, and predator responsible for the kill if predation was involved, collected in South Africa's Kruger National Park (henceforth Kruger) over 46 years, encompassing five mammalian carnivores larger than 10 kg in body mass, and 22 herbivore species spanning this siz ...
... based on records of found carcasses, and predator responsible for the kill if predation was involved, collected in South Africa's Kruger National Park (henceforth Kruger) over 46 years, encompassing five mammalian carnivores larger than 10 kg in body mass, and 22 herbivore species spanning this siz ...
The spatial distribution of African savannah herbivores
... relatively insensitive to predation and are regulated instead by food abundance, mid-sized herbivores are regulated by food quality, and smaller herbivores are largely regulated by predators [30]. As a consequence, herbivores are expected to respond to perceived predation risk in a way that depends ...
... relatively insensitive to predation and are regulated instead by food abundance, mid-sized herbivores are regulated by food quality, and smaller herbivores are largely regulated by predators [30]. As a consequence, herbivores are expected to respond to perceived predation risk in a way that depends ...
Chapter 10 - Lakeland Regional High School
... • Some species are clearly critical to the functioning of an ecosystem. • A keystone species is a species that is critical to the functioning of the ecosystem in which it lives because it affects the survival and abundance of many other species in its community. • An example is the sea otter. The lo ...
... • Some species are clearly critical to the functioning of an ecosystem. • A keystone species is a species that is critical to the functioning of the ecosystem in which it lives because it affects the survival and abundance of many other species in its community. • An example is the sea otter. The lo ...
Feral Animal Policy draft
... options for feral animal management and will be guided by up to date research and control techniques. The strategies will be cost effective and develop actions and performance measures for the desired policy outcomes. Strategies will be regularly reviewed and an adaptive management approach used for ...
... options for feral animal management and will be guided by up to date research and control techniques. The strategies will be cost effective and develop actions and performance measures for the desired policy outcomes. Strategies will be regularly reviewed and an adaptive management approach used for ...
Restoration Ecology: Interventionist Approaches for - LERF
... that ecosystem dynamics can be complex, nonlinear, and often unpredictable (35–37). Hence, previously accepted ideas of gradual successional change may not be applicable in all situations (38). Of particular importance is the recognition that some ecosystems may occur in a number of alternative stat ...
... that ecosystem dynamics can be complex, nonlinear, and often unpredictable (35–37). Hence, previously accepted ideas of gradual successional change may not be applicable in all situations (38). Of particular importance is the recognition that some ecosystems may occur in a number of alternative stat ...
Full text in pdf format
... the cost of gathering information about predation risk may be great, some animals spend the bulk of their lives in these refuges (Sih 1987), potentially limiting the kinds and numbers of available foods to which they have access. To ensure an adequate and reliable food supply, some consumers special ...
... the cost of gathering information about predation risk may be great, some animals spend the bulk of their lives in these refuges (Sih 1987), potentially limiting the kinds and numbers of available foods to which they have access. To ensure an adequate and reliable food supply, some consumers special ...
24. Hunter Estuary Wetlands
... impact. The ECD’s claim in reference to Table 6-1 that “this table does not include all threats only those that have been mentioned in the literature as potential major threats.” Is taken on face value although references for each threat are not provided. The direction, timing and impacts of climate ...
... impact. The ECD’s claim in reference to Table 6-1 that “this table does not include all threats only those that have been mentioned in the literature as potential major threats.” Is taken on face value although references for each threat are not provided. The direction, timing and impacts of climate ...
Impacts of Pollutants on Beavers and Otters with Implications for
... and often abiotic components of their habitat (Soulé et al. 2005). The benefit of interactivity as a concept is akin to that of keystoneness (see above) – it suggests a continuum and not a duality in relative importance of species to ecosystem function. Clearly, all species have the potential to be ...
... and often abiotic components of their habitat (Soulé et al. 2005). The benefit of interactivity as a concept is akin to that of keystoneness (see above) – it suggests a continuum and not a duality in relative importance of species to ecosystem function. Clearly, all species have the potential to be ...
The vulnerability of provincially rare species (species-at
... Applying the climate change vulnerability index (CCVI) tool......................................................................4 Results...............................................................................................................................................................5 D ...
... Applying the climate change vulnerability index (CCVI) tool......................................................................4 Results...............................................................................................................................................................5 D ...
Aurelia aurita: the Moon Jelly
... In the case of A. aurita, over fishing of native pelagic fish has made establishment and success rates much higher (Richardson et al., 2009). Many of these removed fish species compete with the jellyfish for zooplankton, and often prey upon the polyps, ephyrae, and small medusae. Removing one of the ...
... In the case of A. aurita, over fishing of native pelagic fish has made establishment and success rates much higher (Richardson et al., 2009). Many of these removed fish species compete with the jellyfish for zooplankton, and often prey upon the polyps, ephyrae, and small medusae. Removing one of the ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.