Effects of population-level aggregation
... allowed that model to include intra-annual aggregation, and finally we added the effects of ...
... allowed that model to include intra-annual aggregation, and finally we added the effects of ...
Marine range shifts and species introductions
... & Hastings (2005) to confirm that the values were based on evidence consistent with our criteria of well-documented historical range boundaries, introduction timelines and establishment. In addition, we attempted to only include introduced species whose secondary spread was not human-mediated but, r ...
... & Hastings (2005) to confirm that the values were based on evidence consistent with our criteria of well-documented historical range boundaries, introduction timelines and establishment. In addition, we attempted to only include introduced species whose secondary spread was not human-mediated but, r ...
stopover on a gulf coast barrier island by spring trans
... habitat. Several other species were found in Scrub/Shrub habitat more often than any of the other four habitat types (Table 2). Contingency analysis indicates that the distribution of individual migrants differs between morning and afternoon samples, whether Primary Dune habitat was included or not ...
... habitat. Several other species were found in Scrub/Shrub habitat more often than any of the other four habitat types (Table 2). Contingency analysis indicates that the distribution of individual migrants differs between morning and afternoon samples, whether Primary Dune habitat was included or not ...
N - McMaster Department of Biology
... Nevertheless, the Lotka-Volterra model offers a good framework for examining the role of other species and abiotic conditions on the dynamics of two species interactions. Such influences can be incorporated into the model ...
... Nevertheless, the Lotka-Volterra model offers a good framework for examining the role of other species and abiotic conditions on the dynamics of two species interactions. Such influences can be incorporated into the model ...
Restoration of Ecosystems
... – (reclamation, rehabilitation, revegetation) creates unrealistic expectations ...
... – (reclamation, rehabilitation, revegetation) creates unrealistic expectations ...
30 years of the endangered species act
... 200 to 300 Aleutian geese. Buldir was Many private landowners on the Califorone of few remaining islands with no nia coast and in the Sacramento and San foxes and a remnant goose population. Joaquin valleys manage their lands to So serious was the plight of the subspe- provide wintering habitat for ...
... 200 to 300 Aleutian geese. Buldir was Many private landowners on the Califorone of few remaining islands with no nia coast and in the Sacramento and San foxes and a remnant goose population. Joaquin valleys manage their lands to So serious was the plight of the subspe- provide wintering habitat for ...
The interaction between habitat conditions, ecosystem
... an emerging trend in thinking involves the idea of biodiversity acting within functional groups as an ‘insurance policy’ or ‘buffer’ against major ecosystem change. The interaction of habitat conditions, ecosystem processes and biodiversity is therefore a two-way process and hence the effects of bio ...
... an emerging trend in thinking involves the idea of biodiversity acting within functional groups as an ‘insurance policy’ or ‘buffer’ against major ecosystem change. The interaction of habitat conditions, ecosystem processes and biodiversity is therefore a two-way process and hence the effects of bio ...
Ecology, Second Edition
... Patterns of Population Growth 223 CONCEPT 10.2 Delayed density dependence can cause populations to fluctuate in size. 226 Delayed Density Dependence 226 ...
... Patterns of Population Growth 223 CONCEPT 10.2 Delayed density dependence can cause populations to fluctuate in size. 226 Delayed Density Dependence 226 ...
Ecological impact of ionising radiation, an endpoint issue?
... Traditional Environmental Toxicology (as derived from human toxicology) toxicology) ...
... Traditional Environmental Toxicology (as derived from human toxicology) toxicology) ...
CNPS policy on mitigation guidelines regarding impacts to rare
... (1) These alternatives compromise and ultimately negate mitigation by allowing net losses of rare plant populations and habitat. Mitigation must, according to CEQA, fully offset or reduce significant impacts to a less than significant level. (2) Most rare plants are restricted to their known locatio ...
... (1) These alternatives compromise and ultimately negate mitigation by allowing net losses of rare plant populations and habitat. Mitigation must, according to CEQA, fully offset or reduce significant impacts to a less than significant level. (2) Most rare plants are restricted to their known locatio ...
Priority effects: natives, but not exotics, pay to arrive late
... early cohort), and each species appeared in six early cohorts. We had 24 communities assembled by the ordered treatment, and six control communities in which all species were added at the same time (Table 2). We kept these mesocosms under glasshouse conditions (the temperature of the glasshouse fluct ...
... early cohort), and each species appeared in six early cohorts. We had 24 communities assembled by the ordered treatment, and six control communities in which all species were added at the same time (Table 2). We kept these mesocosms under glasshouse conditions (the temperature of the glasshouse fluct ...
1 Stresses and Threats to Natural Resources of Michigan Lakes
... neglect regarding natural resources. Some of these issues, like cooperative resource management and overfishing are less important today, but many of these problems continue. A number of recent studies document the cumulative effects of small modifications to habitat on biological communities result ...
... neglect regarding natural resources. Some of these issues, like cooperative resource management and overfishing are less important today, but many of these problems continue. A number of recent studies document the cumulative effects of small modifications to habitat on biological communities result ...
Greater glider - Brisbane City Council
... The squirrel glider (Petaurus norfolcensis), which is also part of this group is addressed under its own Conservation Action Statement (Council 2005). ...
... The squirrel glider (Petaurus norfolcensis), which is also part of this group is addressed under its own Conservation Action Statement (Council 2005). ...
The assembly of forest communities according to maximum species
... An ongoing debate in ecology concerns the relative importance of competition in driving community patterns, especially along gradients of disturbance and productivity. We used a null model to address this question by testing for non-random organization of forest species according to maximum height, ...
... An ongoing debate in ecology concerns the relative importance of competition in driving community patterns, especially along gradients of disturbance and productivity. We used a null model to address this question by testing for non-random organization of forest species according to maximum height, ...
Indirect Effects of Introduced Predators on Seabird Islands
... The dynamics of apparent competition on islands have been theoretically studied for the specific case where the primary prey is a native species, and the predator and secondary prey are introduced mammals (Courchamp et al. 1999, Gaucel and Pontier 2005, Zhang et al. 2006). An introduced prey species ...
... The dynamics of apparent competition on islands have been theoretically studied for the specific case where the primary prey is a native species, and the predator and secondary prey are introduced mammals (Courchamp et al. 1999, Gaucel and Pontier 2005, Zhang et al. 2006). An introduced prey species ...
Bald Eagle, Haliaeetus leucocephalus
... In our western states they are found in deserts and mountains. In the South they inhabit swamps, river bottoms and forests. In the Northeast they can be found in forests, areas of mixed forest and agriculture and even rural areas near cities and small towns. In general, bobcats use rough, broken hab ...
... In our western states they are found in deserts and mountains. In the South they inhabit swamps, river bottoms and forests. In the Northeast they can be found in forests, areas of mixed forest and agriculture and even rural areas near cities and small towns. In general, bobcats use rough, broken hab ...
WGCP PIF Plan (2003 Revised Draft)
... Woodpecker (Picoides borealis), which requires old pine stands, but has also had a negative effect on other pine birds that thrive under pine savannah conditions. Young pine plantations typically do not support many birds. Maintenance and restoration of older, fire maintained pine stands must be a h ...
... Woodpecker (Picoides borealis), which requires old pine stands, but has also had a negative effect on other pine birds that thrive under pine savannah conditions. Young pine plantations typically do not support many birds. Maintenance and restoration of older, fire maintained pine stands must be a h ...
Community Ecology
... – Each population in community is there because its own particular abiotic requirements are met by a particular habitat. Clements - Interactive Model – Community is the highest level of organization. Dependent on biotic interactions. Mader: Biology 8th Ed. ...
... – Each population in community is there because its own particular abiotic requirements are met by a particular habitat. Clements - Interactive Model – Community is the highest level of organization. Dependent on biotic interactions. Mader: Biology 8th Ed. ...
School in the Clouds and Education Standards Hawk Mountain`s
... Living things depend on other living things in their environment for survival. Changes in the environment may affect the survival of living things in that environment. The survival of living things is affected by changes in the food, water, shelter and space available to them. Living things adapt to ...
... Living things depend on other living things in their environment for survival. Changes in the environment may affect the survival of living things in that environment. The survival of living things is affected by changes in the food, water, shelter and space available to them. Living things adapt to ...
SPECIES-AREA RELATIONSHIPS SPECIES-AREA REL.ATIONSHIPS
... disturbance model predicts synchronous extinctions. A more fundamental difference is that the MacArthur and Wilson (1967) model envisions all communities as being in an ecological equilibrium, whereas the disturbance hypothesis describes small-island communities in a state of disequilibrium. Evidenc ...
... disturbance model predicts synchronous extinctions. A more fundamental difference is that the MacArthur and Wilson (1967) model envisions all communities as being in an ecological equilibrium, whereas the disturbance hypothesis describes small-island communities in a state of disequilibrium. Evidenc ...
Phytoplankton niches, traits and eco
... resource competition theory itself was first developed for phytoplankton (Tilman 1982, Tilman et al. 1982). Furthermore, a trait-based approach based on resource competition theory mechanistically unites the Grinellian and Eltonian perspectives, because species’ traits determine the conditions under ...
... resource competition theory itself was first developed for phytoplankton (Tilman 1982, Tilman et al. 1982). Furthermore, a trait-based approach based on resource competition theory mechanistically unites the Grinellian and Eltonian perspectives, because species’ traits determine the conditions under ...
Evaluating condition-specific and asymmetric competition in a
... stage, for that reason only tadpoles stage 30 or smaller were used for experiments. Due to the difficulties of collecting large numbers of small-stage tadpoles at one time, tadpole collection was continuous throughout the field season (May! August of 2005 and 2006) and replicates were started as tad ...
... stage, for that reason only tadpoles stage 30 or smaller were used for experiments. Due to the difficulties of collecting large numbers of small-stage tadpoles at one time, tadpole collection was continuous throughout the field season (May! August of 2005 and 2006) and replicates were started as tad ...
Effectiveness of scat-detection dogs in determining species
... ††Global Felid Genetics Program, Sackler Institute of Comparative Genomics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, U.S.A. ...
... ††Global Felid Genetics Program, Sackler Institute of Comparative Genomics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024, U.S.A. ...
Moose Scientific Name - Province of British Columbia
... varies with the season. Forage preferences are determined by both the seasonal variations in protein content and by availability. Woody forage is eaten in all seasons, but is more commonly taken in fall and winter due to the higher protein content, and availability. Important winter forage species i ...
... varies with the season. Forage preferences are determined by both the seasonal variations in protein content and by availability. Woody forage is eaten in all seasons, but is more commonly taken in fall and winter due to the higher protein content, and availability. Important winter forage species i ...
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.