International Sage-grouse Forum (ISGF) (www.sage
... include establishment ecology of weeds and native plants, vegetation disturbance thresholds for management of sagebrush systems, watershed responses to management practices, and increasing diversity of fire rehabilitation and other range seedings. He will discuss understory cover responses to Piñon- ...
... include establishment ecology of weeds and native plants, vegetation disturbance thresholds for management of sagebrush systems, watershed responses to management practices, and increasing diversity of fire rehabilitation and other range seedings. He will discuss understory cover responses to Piñon- ...
A case study in ecological succession
... Changes in abundance: Habitat shifts Two pit vipers occur on the Reservation, the Timber Rattlesnake (Crotalus horridus, left) and the Copperhead (Agkistrodon contortrix, right). These animals have heat-detecting structures in their heads that allow them to detect and strike at prey, injecting a par ...
... Changes in abundance: Habitat shifts Two pit vipers occur on the Reservation, the Timber Rattlesnake (Crotalus horridus, left) and the Copperhead (Agkistrodon contortrix, right). These animals have heat-detecting structures in their heads that allow them to detect and strike at prey, injecting a par ...
Impact of farm size and topography on plant and
... Since the second half of the 20th century, the intensification of land-use practices and the associated decline in semi-natural habitats have been the major drivers of farmland biodiversity loss at local, regional and global scales (Norris, 2008). Over the same period, a structural transformation of ...
... Since the second half of the 20th century, the intensification of land-use practices and the associated decline in semi-natural habitats have been the major drivers of farmland biodiversity loss at local, regional and global scales (Norris, 2008). Over the same period, a structural transformation of ...
Impacts of climate change on diversity in forested ecosystems: Some
... human-induced primary and secondary impacts, climate, and natural disturbances. Pollution, modification of land and water bodies, the unprecedented intentional and accidental global redistribution of species, and unsustainable use of some natural resources are rapidly affecting ecospheric compositio ...
... human-induced primary and secondary impacts, climate, and natural disturbances. Pollution, modification of land and water bodies, the unprecedented intentional and accidental global redistribution of species, and unsustainable use of some natural resources are rapidly affecting ecospheric compositio ...
Community monopolization: local adaptation enhances priority
... even though a good disperser arrives in many habitats, these immigrants will not always successfully establish and reproduce in those habitats. As such, even good dispersers can become locally adapted, a pattern long recognized but not often explained (Ehrlich & Raven 1969; Hendry & Taylor 2004). In ...
... even though a good disperser arrives in many habitats, these immigrants will not always successfully establish and reproduce in those habitats. As such, even good dispersers can become locally adapted, a pattern long recognized but not often explained (Ehrlich & Raven 1969; Hendry & Taylor 2004). In ...
dietary habits of the common rodents in an agroecosystem in
... The Argentine Pampa is a temperate subhumid grassland that has undergone intensive fanning for> 100 years (Soriano et aI., 1991). The rodent assemblage of the central Argentine Pampa consists of six important species, including five sigmodontines e. musculinus, e. laucha, Akodon azarae, Bolomys obsc ...
... The Argentine Pampa is a temperate subhumid grassland that has undergone intensive fanning for> 100 years (Soriano et aI., 1991). The rodent assemblage of the central Argentine Pampa consists of six important species, including five sigmodontines e. musculinus, e. laucha, Akodon azarae, Bolomys obsc ...
Katie`s lecture slides
... that were far apart became more similar over time. Environmental filtering (elevation as proxy): study plots with a large elevation differences became less similar over time ...
... that were far apart became more similar over time. Environmental filtering (elevation as proxy): study plots with a large elevation differences became less similar over time ...
Chapter 47
... 1. Review the discussion of the 2nd law of thermodynamics in Concept 8.1 (p 143). How does this physical law explain why an ecosystem’s energy supply must continually be replenished? 2. Concept 10.3 describes the Calvin cycle of photosynthesis. Explain how nitrogen and phosphorus, the nutrients that ...
... 1. Review the discussion of the 2nd law of thermodynamics in Concept 8.1 (p 143). How does this physical law explain why an ecosystem’s energy supply must continually be replenished? 2. Concept 10.3 describes the Calvin cycle of photosynthesis. Explain how nitrogen and phosphorus, the nutrients that ...
Species Richness and the Temporal Stability of Biomass Production
... grasslands, substantial effort was often made to minimize spatial heterogeneity across plots, although some year-toyear variation in abiotic conditions like temperature or precipitation was inevitable. Finally, terrestrial experiments typically included more species than their aquatic counterparts ( ...
... grasslands, substantial effort was often made to minimize spatial heterogeneity across plots, although some year-toyear variation in abiotic conditions like temperature or precipitation was inevitable. Finally, terrestrial experiments typically included more species than their aquatic counterparts ( ...
Seed dispersal strategies and the threat of defaunation in a Congo
... list of frugivorous vertebrate species of the ecosystem was established. Among the fruiteating vertebrate species identified in the ecosystem, forest elephants and bonobos are threatened with extinction (IUCN, The IUCN red list of threatened species, 2012). Although most of the species listed previo ...
... list of frugivorous vertebrate species of the ecosystem was established. Among the fruiteating vertebrate species identified in the ecosystem, forest elephants and bonobos are threatened with extinction (IUCN, The IUCN red list of threatened species, 2012). Although most of the species listed previo ...
The importance of niches for the maintenance of species diversity
... Ecological communities characteristically contain a wide diversity of species with important functional, economic and aesthetic value. Ecologists have long questioned how this diversity is maintained1–3. Classic theory shows that stable coexistence requires competitors to differ in their niches4–6; ...
... Ecological communities characteristically contain a wide diversity of species with important functional, economic and aesthetic value. Ecologists have long questioned how this diversity is maintained1–3. Classic theory shows that stable coexistence requires competitors to differ in their niches4–6; ...
The importance of niches for the maintenance of species diversity
... Ecological communities characteristically contain a wide diversity of species with important functional, economic and aesthetic value. Ecologists have long questioned how this diversity is maintained1–3. Classic theory shows that stable coexistence requires competitors to differ in their niches4–6; ...
... Ecological communities characteristically contain a wide diversity of species with important functional, economic and aesthetic value. Ecologists have long questioned how this diversity is maintained1–3. Classic theory shows that stable coexistence requires competitors to differ in their niches4–6; ...
ADAPTIVE RADIATION OF THE NEW ZEALAND GECKOS
... the tuatara they evolved in Gondwanaland while the land that was to become New Zealand was still attached. Separation began about 85 million years ago (85mya) ...
... the tuatara they evolved in Gondwanaland while the land that was to become New Zealand was still attached. Separation began about 85 million years ago (85mya) ...
BCB 311 Biodiversity & Conservation Biology
... The rapid decrease in amphibians sp number has been identified and has been listed as one of the most severe issue as to date by conservationist. Many conservationist have found methods in which to conserve the amphibian species which we do still have living today One method used is to educate ...
... The rapid decrease in amphibians sp number has been identified and has been listed as one of the most severe issue as to date by conservationist. Many conservationist have found methods in which to conserve the amphibian species which we do still have living today One method used is to educate ...
- ePrints Soton
... phenotypic variation. The phenotype in question is whatever function of the community composition that we define, measured at the end of an ecosystem generation. This could be an instantaneous or cumulative value. Heritability of the phenotype will depend on the reproducibility of an ecosystem’s sta ...
... phenotypic variation. The phenotype in question is whatever function of the community composition that we define, measured at the end of an ecosystem generation. This could be an instantaneous or cumulative value. Heritability of the phenotype will depend on the reproducibility of an ecosystem’s sta ...
Gerbils and Heteromyids – Interspecific Competition and the Spatio
... the role of the temporal axis in niche partitioning. They also suggested that we should adopt a mechanistic approach that takes into consideration the complexity of species coexistence via the role of the limiting factor and the environmental heterogeneity (e.g., Price 1986, Schoener 1986a, Rosenzwe ...
... the role of the temporal axis in niche partitioning. They also suggested that we should adopt a mechanistic approach that takes into consideration the complexity of species coexistence via the role of the limiting factor and the environmental heterogeneity (e.g., Price 1986, Schoener 1986a, Rosenzwe ...
Evaluating least-cost model predictions with empirical
... Ecological Modelling, Dec2007, Vol. 209 Issue 2-4, p314-322, 9p Abstract: Habitat fragmentation and habitat loss are widely recognized as major threats to biodiversity on a regional as well as on a global scale. To restrict its effects, ecological networks such as the trans-European network NATURA20 ...
... Ecological Modelling, Dec2007, Vol. 209 Issue 2-4, p314-322, 9p Abstract: Habitat fragmentation and habitat loss are widely recognized as major threats to biodiversity on a regional as well as on a global scale. To restrict its effects, ecological networks such as the trans-European network NATURA20 ...
Feeding habits of Collembola and their ecological niche
... remains were more often found. This is of interest because, even if it is not an abundant species in the epiphytic plants, reaching only 2% of the total abundance in the rainy seasons (Palacios-Vargas & Castaño-Meneses 2003), its abundance increased during the dry season, reaching 8% of the total nu ...
... remains were more often found. This is of interest because, even if it is not an abundant species in the epiphytic plants, reaching only 2% of the total abundance in the rainy seasons (Palacios-Vargas & Castaño-Meneses 2003), its abundance increased during the dry season, reaching 8% of the total nu ...
Lowland subtropical rainforest
... rainforest communities based on the best available regional information. The areas are overestimates of this rainforest’s extent, and may include other related ecosystems. Further verification is required. ...
... rainforest communities based on the best available regional information. The areas are overestimates of this rainforest’s extent, and may include other related ecosystems. Further verification is required. ...
Peregrine Post newsletter Winter 2008.pub
... levels if we are to help protect and reBiodiversity at a Time of Climate Change store habitat. white paper - the basis of how Victoria man- − Plans to restore native habitat and creages its natural environment for the next 30 ate large-scale wildlife corridors to help years. species cope with climat ...
... levels if we are to help protect and reBiodiversity at a Time of Climate Change store habitat. white paper - the basis of how Victoria man- − Plans to restore native habitat and creages its natural environment for the next 30 ate large-scale wildlife corridors to help years. species cope with climat ...
Advantageous indirect interactions in systems of competition
... species are of exactly equal magnitude c. However, for s > 0; the interaction strengths are free to vary about c as mean. The variability of the coefficients is understood as an indicator of disturbance. Thus two systems may have the same number of species and the same average interaction strength c, ...
... species are of exactly equal magnitude c. However, for s > 0; the interaction strengths are free to vary about c as mean. The variability of the coefficients is understood as an indicator of disturbance. Thus two systems may have the same number of species and the same average interaction strength c, ...
Invasional meltdown 6 years later: important
... hair contained more than 10 times as many seeds of introduced plants as of native species. Experiments showed that seeds were mostly viable, and germination was high. They did not seek evidence that the bison determine population size and spread of the introduced plants, but they caution that this i ...
... hair contained more than 10 times as many seeds of introduced plants as of native species. Experiments showed that seeds were mostly viable, and germination was high. They did not seek evidence that the bison determine population size and spread of the introduced plants, but they caution that this i ...
appendix w5 - Department of Water Affairs
... High diversity of vegetation and geomorphological structure and patchiness/interspersion. High rating=3; High diversity of vegetation and geomorphological structure and low patchiness interspersion. Moderate rating=2; Low diversity of vegetation and geomorphological structure and high patchiness/int ...
... High diversity of vegetation and geomorphological structure and patchiness/interspersion. High rating=3; High diversity of vegetation and geomorphological structure and low patchiness interspersion. Moderate rating=2; Low diversity of vegetation and geomorphological structure and high patchiness/int ...
estimating species richness three different ways
... doubling of sampling effort. Three richness estimates were calculated: the area under the fitted lognormal distribution, the asymptote of the Michaelis-Menten equation fit to the species accumulation curve, and the Incidence-based Coverage Estimator (ICE). The performance of the estimators was evalu ...
... doubling of sampling effort. Three richness estimates were calculated: the area under the fitted lognormal distribution, the asymptote of the Michaelis-Menten equation fit to the species accumulation curve, and the Incidence-based Coverage Estimator (ICE). The performance of the estimators was evalu ...
Evolution, Biological Communities, and Species Interactions
... All species live within limits Environmental factors exert selection pressure and influence the fitness of individuals and their offspring. For this reason, species are limited in where they can live. Limitations include the following: (1) physiological stress due to inappropriate levels of some cri ...
... All species live within limits Environmental factors exert selection pressure and influence the fitness of individuals and their offspring. For this reason, species are limited in where they can live. Limitations include the following: (1) physiological stress due to inappropriate levels of some cri ...
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.