A weed risk assessment system for new conservation weeds in New
... on scores relating to their biological success and index of weediness. However, this rank order of the species should not be expected to be equally applicable across all New Zealand environments. We should expect differences between, for example, Northland forests and Canterbury tussock grasslands. ...
... on scores relating to their biological success and index of weediness. However, this rank order of the species should not be expected to be equally applicable across all New Zealand environments. We should expect differences between, for example, Northland forests and Canterbury tussock grasslands. ...
Gunārs Pētersons. Distribution patterns and seasonal migration of bat
... A higher population density was found in the southern Latvia in comparison to the northern part for three species, TV. noctula (P<0.01), V. murinus (P<0.05) and P. pipistrellus (P0.01). This can be explained by differences in climate in summer and by larger migration distances to be covered in the m ...
... A higher population density was found in the southern Latvia in comparison to the northern part for three species, TV. noctula (P<0.01), V. murinus (P<0.05) and P. pipistrellus (P0.01). This can be explained by differences in climate in summer and by larger migration distances to be covered in the m ...
A model of discrete Kolmogorov-type competitive interaction in a two
... competitive two-species “toy” model of an ecosystem such that both the species occupy the same trophic level. We use numerical experiments with an aim to describe and understand some possible characteristic features of the emergence of dynamical regimes and hence of complexity in the evolving ecosys ...
... competitive two-species “toy” model of an ecosystem such that both the species occupy the same trophic level. We use numerical experiments with an aim to describe and understand some possible characteristic features of the emergence of dynamical regimes and hence of complexity in the evolving ecosys ...
Invasive Alien Species in Nova Scotia
... depend on these vital natural resources for our own wellbeing and prosperity; it's in our best interest to take note and to take action. This guidebook outlines some of the impacts and threats presented by these species, and stewardship actions that we can all take to help provide healthy and vibran ...
... depend on these vital natural resources for our own wellbeing and prosperity; it's in our best interest to take note and to take action. This guidebook outlines some of the impacts and threats presented by these species, and stewardship actions that we can all take to help provide healthy and vibran ...
4e - scientific protocol
... Aim of the study: collect information on bear and lynx presence in different areas, also in function of season, and obtain a genetic map of the population. Genetic characteristics of the brown bear population, through organic material collection (hair) at hair trap sites. Hair traps are made of a ba ...
... Aim of the study: collect information on bear and lynx presence in different areas, also in function of season, and obtain a genetic map of the population. Genetic characteristics of the brown bear population, through organic material collection (hair) at hair trap sites. Hair traps are made of a ba ...
Katie`s lecture slides
... Trait groups constructed using hierarchical clustering (Ward’s method) of 87 species and 17 traits into 14 groups. Contrast indicative of dispersal limitation? ...
... Trait groups constructed using hierarchical clustering (Ward’s method) of 87 species and 17 traits into 14 groups. Contrast indicative of dispersal limitation? ...
UNIT 9 NOTES
... it is determined largely on how much sunlight there is and how intense it is. This, along with soil, also determines what kinds of plants there will be, and this determines what types of animals. So, if I understand this right, a particular area can be described by its characteristic weather, plants ...
... it is determined largely on how much sunlight there is and how intense it is. This, along with soil, also determines what kinds of plants there will be, and this determines what types of animals. So, if I understand this right, a particular area can be described by its characteristic weather, plants ...
Preview - Magnolia press
... known species. Three of these genera, Syndesus MacLeay (Syndesinae), Ceratognathus Westwood (Aesalinae: Ceratognathini), and Lamprima Latreille (Lampriminae: Lamprimini) comprise alate species, which are widely distributed across much of Australasia. However, the other two genera, Hoplogonus Parry ...
... known species. Three of these genera, Syndesus MacLeay (Syndesinae), Ceratognathus Westwood (Aesalinae: Ceratognathini), and Lamprima Latreille (Lampriminae: Lamprimini) comprise alate species, which are widely distributed across much of Australasia. However, the other two genera, Hoplogonus Parry ...
Interactive effects of habitat modification and species invasion on
... from fundamentally different mechanisms of action and have fundamentally different consequences for conservation management. Our framework is a first step toward building a better quantitative understanding of how interactions between drivers might mitigate or exacerbate the net effects of global en ...
... from fundamentally different mechanisms of action and have fundamentally different consequences for conservation management. Our framework is a first step toward building a better quantitative understanding of how interactions between drivers might mitigate or exacerbate the net effects of global en ...
DengBioDiversity.pdf
... that almost every species, even in its metropolis, would increase immensely in numbers, were it not for other competing species .... — Charles Darwin, On the Origin of the Species, 1859 1. Introduction. The latitudinal gradient in species distribution is one of the oldest patterns in biogeography ([ ...
... that almost every species, even in its metropolis, would increase immensely in numbers, were it not for other competing species .... — Charles Darwin, On the Origin of the Species, 1859 1. Introduction. The latitudinal gradient in species distribution is one of the oldest patterns in biogeography ([ ...
Priority Research and Management Issues for the Imperiled Great
... maintenance, floods and droughts, pollutants, and maintenance of native species. Changes in climate in combination with increases in carbon dioxide (CO2 ) will affect both agronomic and native ecosystems. Productivity of both crops and native species may be greater with higher CO2 and longer growing ...
... maintenance, floods and droughts, pollutants, and maintenance of native species. Changes in climate in combination with increases in carbon dioxide (CO2 ) will affect both agronomic and native ecosystems. Productivity of both crops and native species may be greater with higher CO2 and longer growing ...
Cryptic diversity, geographical endemism and
... morphologically conserved, hyper-diverse and/or poorlystudied taxonomic groups [8–10], and even within large, ecologically dominant organisms such as canopy-forming kelp [11, 12]. In the NE Atlantic, for instance, two new fucoids have been genetically identified (within existing taxa) in the past 10 ...
... morphologically conserved, hyper-diverse and/or poorlystudied taxonomic groups [8–10], and even within large, ecologically dominant organisms such as canopy-forming kelp [11, 12]. In the NE Atlantic, for instance, two new fucoids have been genetically identified (within existing taxa) in the past 10 ...
MMBG Newsletter No. 91
... moths. Plotted on a 2km basis, black squares indicate records for 2000 onwards, whereas open squares indicate sites where pre-2000 records exist but no post-2000 records. Historical records which were too vague to be assigned at the 2km level have been omitted. Martin Anthoney ...
... moths. Plotted on a 2km basis, black squares indicate records for 2000 onwards, whereas open squares indicate sites where pre-2000 records exist but no post-2000 records. Historical records which were too vague to be assigned at the 2km level have been omitted. Martin Anthoney ...
Andrews Forest LTER Biodiversity Research - lterdev
... characteristics (e.g., canopy cover, tree density, basal area) that are most strongly correlated with these declines, and (3) the degree to which temporal patterns are mediated by local environment (aspect, topographic position, site productivity), disturbance history (stand-initiating and subsequen ...
... characteristics (e.g., canopy cover, tree density, basal area) that are most strongly correlated with these declines, and (3) the degree to which temporal patterns are mediated by local environment (aspect, topographic position, site productivity), disturbance history (stand-initiating and subsequen ...
World Turtle Day booklet - Inside pages
... WORLD section. Look at the weight a Galapagos giant tortoise can reach. Now weigh yourself. How many times heavier is the tortoise than you? ...
... WORLD section. Look at the weight a Galapagos giant tortoise can reach. Now weigh yourself. How many times heavier is the tortoise than you? ...
Species number, species abundance and body
... Strayer, 1986; Harvey & Godfrey, 1987). but because data are almost always presented in two dimensions (for example species: abundance distributions are presented by summing across individuals of all body sizes), development of a unifying theory is hampered by ignorance about the shape of the full t ...
... Strayer, 1986; Harvey & Godfrey, 1987). but because data are almost always presented in two dimensions (for example species: abundance distributions are presented by summing across individuals of all body sizes), development of a unifying theory is hampered by ignorance about the shape of the full t ...
Restoration of degraded hill land in South China
... and Diament, 1991). In extremely degraded sites, environmental stresses act as abiotic filter and only some pioneer species may be able to tolerate the severe conditions. South China is in the lower subtropical monsoon region. The annual precipitation is about 1700mm and the rainfall is generally in ...
... and Diament, 1991). In extremely degraded sites, environmental stresses act as abiotic filter and only some pioneer species may be able to tolerate the severe conditions. South China is in the lower subtropical monsoon region. The annual precipitation is about 1700mm and the rainfall is generally in ...
olabisi onabanjo university pls317: plant ecology
... Succession is a process of ecological change involving the progressive replacement of earlier biotic communities with others over time. It will interest you to know that succession usually begins with the disturbance of a pre-existing ecosystem follow by recovery. In the absence of further disturban ...
... Succession is a process of ecological change involving the progressive replacement of earlier biotic communities with others over time. It will interest you to know that succession usually begins with the disturbance of a pre-existing ecosystem follow by recovery. In the absence of further disturban ...
Global hotspots in the Arabian Peninsula - Kasparek
... The ‘hotspot’ concept was first developed by MYERS (1988) who identified 10 tropical forests containing exceptionally high levels of species diversity. The hotspot approach was later adopted by Conservation International (CI) as its central strategy. Its aim was to identify areas containing concentr ...
... The ‘hotspot’ concept was first developed by MYERS (1988) who identified 10 tropical forests containing exceptionally high levels of species diversity. The hotspot approach was later adopted by Conservation International (CI) as its central strategy. Its aim was to identify areas containing concentr ...
Young Forest Habitat - Department of Plant Science
... ecosystem have evolved together over thousands of years. They have come to a delicate balance in the struggle for survival between animals needing to eat and plants needing not to be eaten. A visible example of an ecosystem out of balance is when white-tailed deer populations increase beyond a susta ...
... ecosystem have evolved together over thousands of years. They have come to a delicate balance in the struggle for survival between animals needing to eat and plants needing not to be eaten. A visible example of an ecosystem out of balance is when white-tailed deer populations increase beyond a susta ...
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.