How Populations Change in Size
... Carrying Capacity The blue line in Figure 1.5 represents a population that seems to approach a particular size over time. This theoretical limit, the dashed yellow line, is called carrying capacity. At high densities, populations move toward lower birth rates or higher death rates (this is called de ...
... Carrying Capacity The blue line in Figure 1.5 represents a population that seems to approach a particular size over time. This theoretical limit, the dashed yellow line, is called carrying capacity. At high densities, populations move toward lower birth rates or higher death rates (this is called de ...
Managing open habitats in upland forests
... purposes. Firstly, knowing what priority habitats and species are present on a particular site. Ideally, maps showing discreet patches of habitats of different types are needed for this purpose, including those habitats known to be used by important priority species. Secondly, details are needed abo ...
... purposes. Firstly, knowing what priority habitats and species are present on a particular site. Ideally, maps showing discreet patches of habitats of different types are needed for this purpose, including those habitats known to be used by important priority species. Secondly, details are needed abo ...
Peregrine Post newsletter Winter 2008.pub
... spot, lined with grasses and leaves, on the surface of the ground, foraging at night. Conical holes in your lawn mean bandicoots have been looking for food. Solitary animals, with males being very territorial, bandicoots only come together for mating and feeding. Even young ones do not associate wit ...
... spot, lined with grasses and leaves, on the surface of the ground, foraging at night. Conical holes in your lawn mean bandicoots have been looking for food. Solitary animals, with males being very territorial, bandicoots only come together for mating and feeding. Even young ones do not associate wit ...
Introduction to Landscape Ecology
... negatively influenced by presence of least flycatcher territories. •Across new England, these two species are found in the same places? ...
... negatively influenced by presence of least flycatcher territories. •Across new England, these two species are found in the same places? ...
Niche construction, co-evolution and biodiversity
... enough to serve as lizard refuges and produces exposed horizontal perches which are otherwise rare in the local tree species. Pringle transplanted lizards to artificially created perch + refuge trees, perch-only trees, refuge-only trees and control trees. He found that transplanted lizards remained ...
... enough to serve as lizard refuges and produces exposed horizontal perches which are otherwise rare in the local tree species. Pringle transplanted lizards to artificially created perch + refuge trees, perch-only trees, refuge-only trees and control trees. He found that transplanted lizards remained ...
Do Palm Cockatoos (Probosciger aterrimus) have long enough
... We used VORTEX software (Miller and Lacy 2005) to model population trajectories via the discrete, sequential events that happen to individuals (e.g. births, deaths, reproduction, environmental changes) according to defined probabilities determined from field data. VORTEX is an individual-based simulat ...
... We used VORTEX software (Miller and Lacy 2005) to model population trajectories via the discrete, sequential events that happen to individuals (e.g. births, deaths, reproduction, environmental changes) according to defined probabilities determined from field data. VORTEX is an individual-based simulat ...
Chapter 18: Interactions of Living Things
... Air Although you can’t see the air that surrounds you, it has an impact on the lives of most species. Air is composed of a mixture of gases including nitrogen, oxygen, and carbon dioxide. Most plants and animals depend on the gases in air for respiration. The atmosphere is the layer of gases and air ...
... Air Although you can’t see the air that surrounds you, it has an impact on the lives of most species. Air is composed of a mixture of gases including nitrogen, oxygen, and carbon dioxide. Most plants and animals depend on the gases in air for respiration. The atmosphere is the layer of gases and air ...
Full-Text PDF
... species such as S. coronis are considerably more vagile and better able to locate specialized habitats within the matrix of a large area [37]. Therefore, many Speyeria conservation strategies could reasonably focus on protection of all suitable habitat areas, even those areas that are very small. Th ...
... species such as S. coronis are considerably more vagile and better able to locate specialized habitats within the matrix of a large area [37]. Therefore, many Speyeria conservation strategies could reasonably focus on protection of all suitable habitat areas, even those areas that are very small. Th ...
FACTORS AFFECTING POLLINATION AND SEED SET OF A RARE
... 7, 2006). For similar species, seed set is an important factor in the viability of populations (Andreasen 2001), as mature plants are often quickly shaded out by competing vegetation or canopy closure. Most western Sidalcea species are gynodioecious; populations consist of a mixture of female and he ...
... 7, 2006). For similar species, seed set is an important factor in the viability of populations (Andreasen 2001), as mature plants are often quickly shaded out by competing vegetation or canopy closure. Most western Sidalcea species are gynodioecious; populations consist of a mixture of female and he ...
Lowland Woodland Fauna - Environment, Planning and Sustainable
... Foxes, cats and dogs are known to prey on woodland fauna, which can form a substantial proportion of the diet of these introduced predators. The native prey of foxes, feral, stray and domestic cats includes mostly ground-dwelling small mammals and reptiles, birds commonly found on the ground or in l ...
... Foxes, cats and dogs are known to prey on woodland fauna, which can form a substantial proportion of the diet of these introduced predators. The native prey of foxes, feral, stray and domestic cats includes mostly ground-dwelling small mammals and reptiles, birds commonly found on the ground or in l ...
species accounts - Ministry of Environment
... Some researchers believe that caribou are severely restricted to the habitats that they use because of the morphology of the their front teeth. Mountain caribou have the smallest incisors of any ungulate in B.C. thereby limiting the type of food they can utilize; forage must be relatively soft (Paqu ...
... Some researchers believe that caribou are severely restricted to the habitats that they use because of the morphology of the their front teeth. Mountain caribou have the smallest incisors of any ungulate in B.C. thereby limiting the type of food they can utilize; forage must be relatively soft (Paqu ...
Understanding Biodiversity Protection Opportunities in the Oil and
... Some organizations are using the categories to determine land use options and push companies to adopt the ICUN 2000 resolution and make blanket prohibitions about where they will not operate. This was not the intent of the categories If the system is to be taken up by governments and provide a level ...
... Some organizations are using the categories to determine land use options and push companies to adopt the ICUN 2000 resolution and make blanket prohibitions about where they will not operate. This was not the intent of the categories If the system is to be taken up by governments and provide a level ...
UKIRSC TIMETABLE and ABSTRACT BOOKLET
... Harbour seals (Phoca vitulina). Focusing specifically from data obtained at haul-out sites and during foraging trips into the Wash, square-mouthed bay on the eastern coast of England. The objective is to determine if these associations occur more frequently then by chance. We are interested in their ...
... Harbour seals (Phoca vitulina). Focusing specifically from data obtained at haul-out sites and during foraging trips into the Wash, square-mouthed bay on the eastern coast of England. The objective is to determine if these associations occur more frequently then by chance. We are interested in their ...
Colonization in metapopulations: a review of
... colonizer always has a high r. In this model, a high ratio of natality to mortality and a large propagule size are the most important determinants of colonization success. The time to extinction of a population varying around K, on the other hand, was found to be a function of 8.This means that ther ...
... colonizer always has a high r. In this model, a high ratio of natality to mortality and a large propagule size are the most important determinants of colonization success. The time to extinction of a population varying around K, on the other hand, was found to be a function of 8.This means that ther ...
natural habitats
... species within a given region, in a heavily settled landscape it may not be possible to maintain a natural ratio of habitat types. The concept of ‘natural’ is problematic because it often assumes a lack of human influence, and few such areas exist in a settled landscape. A more appropriate approach ...
... species within a given region, in a heavily settled landscape it may not be possible to maintain a natural ratio of habitat types. The concept of ‘natural’ is problematic because it often assumes a lack of human influence, and few such areas exist in a settled landscape. A more appropriate approach ...
2011-12 Annual Report - The Manitoba Habitat Heritage Corporation
... year, MHHC has directly conserved 9,361 acres of land. At the same time, MHHC has been able to maintain strong working relationships with local residents and municipalities across Manitoba by working with them and addressing their specific needs. Be it through the permanent protection of municipal l ...
... year, MHHC has directly conserved 9,361 acres of land. At the same time, MHHC has been able to maintain strong working relationships with local residents and municipalities across Manitoba by working with them and addressing their specific needs. Be it through the permanent protection of municipal l ...
COSSARO classifications from March 24-25 and
... The Lake Sturgeon is one of the largest species of freshwater fish in Canada. It is a long-lived and late-maturing bottom-dwelling fish. These sturgeons occur widely in large lakes and rivers from the Saskatchewan River drainage in Alberta to the Hudson Bay and St. Lawrence River drainages in Quebec ...
... The Lake Sturgeon is one of the largest species of freshwater fish in Canada. It is a long-lived and late-maturing bottom-dwelling fish. These sturgeons occur widely in large lakes and rivers from the Saskatchewan River drainage in Alberta to the Hudson Bay and St. Lawrence River drainages in Quebec ...
Spruce-fir forest - Spruce-fir forests occur on high mountaintops in
... concern according to Partners in Flight (brown creeper, northern saw‐whet owl, black‐capped chickadee) that are likely endemic to these high peaks (Pashley et al. 2000, Rich et al. 2004, Johns 2004). Spruce‐fir also provides critical habitat for a host of plant and animal species found nowhere e ...
... concern according to Partners in Flight (brown creeper, northern saw‐whet owl, black‐capped chickadee) that are likely endemic to these high peaks (Pashley et al. 2000, Rich et al. 2004, Johns 2004). Spruce‐fir also provides critical habitat for a host of plant and animal species found nowhere e ...
APPENDIX B-2A Duchess Paradise Project
... upper reaches of estuaries, occasionally being found as far as 400 km from the sea. The preferred habitat of this species is mud bottoms of river embayments and estuaries, but they are also found well upstream, usually in turbid channels of large rivers over soft mud bottoms more than 1 m deep, bu ...
... upper reaches of estuaries, occasionally being found as far as 400 km from the sea. The preferred habitat of this species is mud bottoms of river embayments and estuaries, but they are also found well upstream, usually in turbid channels of large rivers over soft mud bottoms more than 1 m deep, bu ...
PCA – A Powerful Method for Analyze Ecological Niches
... lives. The second and most frequently applied understanding is the functioning of an organism within its concrete environment, which concerns acting on and responding to the organism’s physical environment as well as to other organisms, originally, within a community. Since the community concept is ...
... lives. The second and most frequently applied understanding is the functioning of an organism within its concrete environment, which concerns acting on and responding to the organism’s physical environment as well as to other organisms, originally, within a community. Since the community concept is ...
Streaked Horned Lark Habitat Characteristics
... although larks have been documented on sites as small as 1 acre and the largest known occupied river site is 264 acres. The second exception to the apparent use of only large, open sites 100s of acres in size, may be explained by the high site fidelity exhibited by breeding streaked horned larks, an ...
... although larks have been documented on sites as small as 1 acre and the largest known occupied river site is 264 acres. The second exception to the apparent use of only large, open sites 100s of acres in size, may be explained by the high site fidelity exhibited by breeding streaked horned larks, an ...
Reptiles - Nevada Department of Wildlife
... Gila monsters will forage long distances in search of eggs or young in vertebrate nests, primarily reptle and bird eggs and juvenile mammals including cotontails and mice (Beck 2009). This is the only venomous lizard natve to the U.S. It is most actve from late April through June; actvity rapidly de ...
... Gila monsters will forage long distances in search of eggs or young in vertebrate nests, primarily reptle and bird eggs and juvenile mammals including cotontails and mice (Beck 2009). This is the only venomous lizard natve to the U.S. It is most actve from late April through June; actvity rapidly de ...
Provided for non-commercial research and educational use. Not for
... and immigration). Although these themes may appear straightforward, the relationships between reproduction, age, population density, and environmental stochasticity (random variation due to environmental changes) are complex and not fully understood. Furthermore, these relationships must be contextu ...
... and immigration). Although these themes may appear straightforward, the relationships between reproduction, age, population density, and environmental stochasticity (random variation due to environmental changes) are complex and not fully understood. Furthermore, these relationships must be contextu ...
The interplay between habitat structure and chemical
... (Johnston, Mayer-Pinto & Crowe, 2015; Johnston & Roberts, 2009). It is believed, however, that impacts due to contamination can be predicted, and therefore managed, considering (i) the type of toxicants (and their chemical properties), (ii) the functional groups present in the impacted area, (iii) t ...
... (Johnston, Mayer-Pinto & Crowe, 2015; Johnston & Roberts, 2009). It is believed, however, that impacts due to contamination can be predicted, and therefore managed, considering (i) the type of toxicants (and their chemical properties), (ii) the functional groups present in the impacted area, (iii) t ...