HABITAT DESCRIPTIONS: UPLAND HABITATS
... biodiversity conservation, and produces educational publications on natural history and conservation topics. Hudsonia does not support or oppose development proposals or land use changes; rather, we conduct scientific studies and provide full resulting data, analysis, and recommendations to landowne ...
... biodiversity conservation, and produces educational publications on natural history and conservation topics. Hudsonia does not support or oppose development proposals or land use changes; rather, we conduct scientific studies and provide full resulting data, analysis, and recommendations to landowne ...
Slide 1: NATURAL HISTORY of WHITE
... Damage to natural ecosystems: Decline in biodiversity with increase in deer populations. Continuous eating of wildflowers and herbs (will not grow back). Overconsumption of plants: causes ecosystem changes that affect animals, insects, amphibians, reptiles, birds, & other mammals; removal of nativ ...
... Damage to natural ecosystems: Decline in biodiversity with increase in deer populations. Continuous eating of wildflowers and herbs (will not grow back). Overconsumption of plants: causes ecosystem changes that affect animals, insects, amphibians, reptiles, birds, & other mammals; removal of nativ ...
Great Basin Spadefoot Toad - Province of British Columbia
... northern Great Basin Spadefoot Toad. Because it occupies somewhat different habitats, it may have significantly different life strategies than the desert species. The size of breeding populations probably varies substantially from year to year depending on water table levels, temperature and rainfal ...
... northern Great Basin Spadefoot Toad. Because it occupies somewhat different habitats, it may have significantly different life strategies than the desert species. The size of breeding populations probably varies substantially from year to year depending on water table levels, temperature and rainfal ...
Niche Relationships of Carnivores in a Subtropical Primary Forest in
... Po-Jen Chiang, Kurtis Jai-Chyi Pei, Michael R. Vaughan, and Ching-Feng Li (2012) Niche relationships of carnivores in a subtropical primary forest in southern Taiwan. Zoological Studies 51(4): 500-511. Carnivores are at the higher trophic levels and have garnered much attention in conservation and m ...
... Po-Jen Chiang, Kurtis Jai-Chyi Pei, Michael R. Vaughan, and Ching-Feng Li (2012) Niche relationships of carnivores in a subtropical primary forest in southern Taiwan. Zoological Studies 51(4): 500-511. Carnivores are at the higher trophic levels and have garnered much attention in conservation and m ...
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.
... and predator-and-prey, we can explore the role of various ecological factors, including species interactions, as determinants of population genetic structure. Our results highlight the role of habitat characteristics and biological interactions, as well as landscape features, in the determination of ...
... and predator-and-prey, we can explore the role of various ecological factors, including species interactions, as determinants of population genetic structure. Our results highlight the role of habitat characteristics and biological interactions, as well as landscape features, in the determination of ...
SPECIES ASSESSMENT FOR GREAT BASIN SPADEFOOT TOAD
... The Great Basin spadefoot toad (Spea intermontana) is currently recognized by the Canadian government as a threatened species. In addition, some state agencies throughout its range recognize S. intermontana as a sensitive species, often because too little is known about it to provide evaluations on ...
... The Great Basin spadefoot toad (Spea intermontana) is currently recognized by the Canadian government as a threatened species. In addition, some state agencies throughout its range recognize S. intermontana as a sensitive species, often because too little is known about it to provide evaluations on ...
From spatially explicit ecological models to mean
... be precise in the definition of the description of ‘mean-field’. In fact, in the current literature there exist several ‘mean-field’ concepts, and some of them have rather different meanings. In this section, we discuss those various definitions and meanings and explain what we shall understand by ‘mean ...
... be precise in the definition of the description of ‘mean-field’. In fact, in the current literature there exist several ‘mean-field’ concepts, and some of them have rather different meanings. In this section, we discuss those various definitions and meanings and explain what we shall understand by ‘mean ...
CRP-SAFE for Karner Blue Butterflies
... Both male and female adults tend to use open areas for drinking nectar, roosting, and locating mates. Female Karner blues tend to lay eggs more readily in partially shaded areas. Studies indicate that lupine growing in shade to partial shade conditions provides a high quality food source for larvae ...
... Both male and female adults tend to use open areas for drinking nectar, roosting, and locating mates. Female Karner blues tend to lay eggs more readily in partially shaded areas. Studies indicate that lupine growing in shade to partial shade conditions provides a high quality food source for larvae ...
S. altissima
... bud (Fig. 1)(1). Fly galls are subject to predation from birds and other insects, including a beetle and two parasitic wasps (1). This interaction has been used to demonstrate balancing selection and to study trophic interactions (1,2,3). An open question remains whether host plant or habitat specia ...
... bud (Fig. 1)(1). Fly galls are subject to predation from birds and other insects, including a beetle and two parasitic wasps (1). This interaction has been used to demonstrate balancing selection and to study trophic interactions (1,2,3). An open question remains whether host plant or habitat specia ...
Landscape connectivity analysis for conservation
... Gaggiotti OE, Brooks SP, Amos W, Harwood J (2004) Combining demographic, environmental and genetic data to test hypotheses about colonization events in metapopulations. Mol Ecol 13:811–825 ...
... Gaggiotti OE, Brooks SP, Amos W, Harwood J (2004) Combining demographic, environmental and genetic data to test hypotheses about colonization events in metapopulations. Mol Ecol 13:811–825 ...
An Optimization Model that Links Masting to Seed Herbivory
... with periods of 2 years or 3 years based on geography. Any theory of masting must account for periodic reproduction with conditional period length. ...
... with periods of 2 years or 3 years based on geography. Any theory of masting must account for periodic reproduction with conditional period length. ...
270-275 - University of Oklahoma
... would be directly advantageous when individuals that have the ability to cope with the extreme environment confer an advantage compared to relatives living in non-extreme habitats. Selection favoring individuals with adaptations will lead to adaptive shifts within populations as colonizers of extrem ...
... would be directly advantageous when individuals that have the ability to cope with the extreme environment confer an advantage compared to relatives living in non-extreme habitats. Selection favoring individuals with adaptations will lead to adaptive shifts within populations as colonizers of extrem ...
Patterns of disturbance and recovery in littoral rock pools
... ABSTRACT: Patterns of &sturbance and recovery were investigated in algal-dominated littoral rock pools on the west coast of Italy from February 1991 to November 1993. The assemblage was a mosaic of canopyforming species interspersed amongst patches of turf-forming and encrusting algae. T h e effects ...
... ABSTRACT: Patterns of &sturbance and recovery were investigated in algal-dominated littoral rock pools on the west coast of Italy from February 1991 to November 1993. The assemblage was a mosaic of canopyforming species interspersed amongst patches of turf-forming and encrusting algae. T h e effects ...
Dynamics of ecological communities in variable environments
... The environment that affects the population dynamics of species is naturally variable and unpredictable. Usually there is a wide spectrum of environmental variables that can change both temporally and spatially, such as climatic factors (Ruokolainen et al. 2009). Variation in the environment can aff ...
... The environment that affects the population dynamics of species is naturally variable and unpredictable. Usually there is a wide spectrum of environmental variables that can change both temporally and spatially, such as climatic factors (Ruokolainen et al. 2009). Variation in the environment can aff ...
Landscape size affects the relative importance of habitat amount
... It is important to understand the relative effects of landscape habitat loss, habitat fragmentation, and matrix quality on biodiversity, so that potential management options can be appropriately ranked. However, their effects and relative importance may change with the size of the landscape consider ...
... It is important to understand the relative effects of landscape habitat loss, habitat fragmentation, and matrix quality on biodiversity, so that potential management options can be appropriately ranked. However, their effects and relative importance may change with the size of the landscape consider ...
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 ...
(1999) Consequences of the Allee effect for behaviour, ecology and
... a situation that might arise in a flock of another species, where collective vigilance shows little increase above a small number of birds, but in flocks below that size, mortality due to predation is almost 100%). ...
... a situation that might arise in a flock of another species, where collective vigilance shows little increase above a small number of birds, but in flocks below that size, mortality due to predation is almost 100%). ...
Habitat selection as a major resource partitioning mechanism
... identi_cation thus remains particularly di.cult and blood isozyme electrophoresis is currently the only absolute method available to distinguish between live individuals of these two species "Ruedi et al[ 0889^ Arlettaz et al[ 0886a#[ Despite the fact that M[ myotis and M[ blythii have very similar\ ...
... identi_cation thus remains particularly di.cult and blood isozyme electrophoresis is currently the only absolute method available to distinguish between live individuals of these two species "Ruedi et al[ 0889^ Arlettaz et al[ 0886a#[ Despite the fact that M[ myotis and M[ blythii have very similar\ ...
Action
... Identify key processes and actions that threaten the long term viability of threatened species and communities. * Examine trends in populations of threatened species to identify key threatening processes. * Prioritise threatening processes for ameliorative action, based on magnitude of identified im ...
... Identify key processes and actions that threaten the long term viability of threatened species and communities. * Examine trends in populations of threatened species to identify key threatening processes. * Prioritise threatening processes for ameliorative action, based on magnitude of identified im ...
TITLE: It`s a Puma-eat-Deer-eat-Grass World!
... The idea of trophic cascades was first popularized by Hairston, Smith and Slobodkin’s1960 paper introducing the green world hypothesis. They suggest that the world is green because predators reduce the number of herbivores, which allows plants to proliferate. The term “trophic cascade” was coined by ...
... The idea of trophic cascades was first popularized by Hairston, Smith and Slobodkin’s1960 paper introducing the green world hypothesis. They suggest that the world is green because predators reduce the number of herbivores, which allows plants to proliferate. The term “trophic cascade” was coined by ...
Chapter 18: Interactions of Living Things
... in a given area form a community. For example, a population of penguins and all of the species that they interact with form a community. Populations of organisms in a community depend on each other for food, shelter, and other needs. ...
... in a given area form a community. For example, a population of penguins and all of the species that they interact with form a community. Populations of organisms in a community depend on each other for food, shelter, and other needs. ...
Northern Plains/Prairie Potholes Regional Shorebird Conservation
... Major shorebird issues in the Northern Plains/Prairie Pothole Region. The major identified issues fall into the following three categories. Issue 1. The conservation of endangered and threatened species, declining species, and species of special concern. Two species that breed in the NP/PPR merit sp ...
... Major shorebird issues in the Northern Plains/Prairie Pothole Region. The major identified issues fall into the following three categories. Issue 1. The conservation of endangered and threatened species, declining species, and species of special concern. Two species that breed in the NP/PPR merit sp ...
Short seeddispersal distances and low seedling recruitment in
... Amico 2010). Previous studies have found that flight and thus dispersal distances were longer in structurally simple agricultural landscapes than in forest (Gómez 2003; Lenz et al. 2011). So far, many studies have investigated seed dispersal only in terms of dispersal distance (e.g. Holbrook & Smith ...
... Amico 2010). Previous studies have found that flight and thus dispersal distances were longer in structurally simple agricultural landscapes than in forest (Gómez 2003; Lenz et al. 2011). So far, many studies have investigated seed dispersal only in terms of dispersal distance (e.g. Holbrook & Smith ...
A severe predator-induced population decline predicted
... However recent research has revealed two important details about swift parrot ecology. First, spatio-temporal fluctuation in food availability drives unpredictable annual movements by swift parrots, causing the population to select entirely different breeding sites each year across a breeding range o ...
... However recent research has revealed two important details about swift parrot ecology. First, spatio-temporal fluctuation in food availability drives unpredictable annual movements by swift parrots, causing the population to select entirely different breeding sites each year across a breeding range o ...
Tidal marsh song sparrows - Baylands Ecosystem Habitat Goals
... Two key impacts that have been assessed are changes in habitat, and nest failure due to flooding. The availability of tidal marsh habitat and specific characteristics of tidal marsh habitat, including salinity, are expected to change in the short term (2030), mid-term (2050) and long-term (2100). Co ...
... Two key impacts that have been assessed are changes in habitat, and nest failure due to flooding. The availability of tidal marsh habitat and specific characteristics of tidal marsh habitat, including salinity, are expected to change in the short term (2030), mid-term (2050) and long-term (2100). Co ...