A Synthesis of the Census - Program for the Human Environment
... experts taking part in an international program to take a census of marine life in the ocean at the far south of the world collected specimens from up to 6,500 feet beneath the surface, and said many may never have been seen before. http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_ar ...
... experts taking part in an international program to take a census of marine life in the ocean at the far south of the world collected specimens from up to 6,500 feet beneath the surface, and said many may never have been seen before. http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_ar ...
Primary Succession
... height in the canopy is not as high as it will become in a few more decades. b) Surtsey (Iceland – 1963) The shield volcano, Surtsey, is located 18 km beyond Heimaey on the periphery of the Vestmann Islands off south west Iceland. This extremely active area along the Mid-Atlantic Ridge has some of t ...
... height in the canopy is not as high as it will become in a few more decades. b) Surtsey (Iceland – 1963) The shield volcano, Surtsey, is located 18 km beyond Heimaey on the periphery of the Vestmann Islands off south west Iceland. This extremely active area along the Mid-Atlantic Ridge has some of t ...
Lizards as pollinators and seed dispersers: an island
... and mammals serve as important pollinators and seed dispersers of flowering plants, the role of lizards in these processes has traditionally been considered as rare and less important. However, recent work shows both that their role as mutualistic agents has been underestimated and also reveals a st ...
... and mammals serve as important pollinators and seed dispersers of flowering plants, the role of lizards in these processes has traditionally been considered as rare and less important. However, recent work shows both that their role as mutualistic agents has been underestimated and also reveals a st ...
Quantifying the evidence for biodiversity effects on ecosystem
... Ecology Evolution and Systematics 36, 267-294; Raffaelli, D. (2006) Biodiversity and ecosystem functioning: issues of scale and trophic complexity. Marine Ecology Progress Series 311, 285-294 ...
... Ecology Evolution and Systematics 36, 267-294; Raffaelli, D. (2006) Biodiversity and ecosystem functioning: issues of scale and trophic complexity. Marine Ecology Progress Series 311, 285-294 ...
The Great Divergence: When Did Diversity on
... fertilization, local population density must be high, so that successful fertilization can take place (Mulcahy 1979; Niklas 1983; Friedman and Barrett 2009); but dense populations are also inviting targets for specialist consumers (Janzen 1970; Regal 1977; Leigh et al. 2004). Consequently, there is ...
... fertilization, local population density must be high, so that successful fertilization can take place (Mulcahy 1979; Niklas 1983; Friedman and Barrett 2009); but dense populations are also inviting targets for specialist consumers (Janzen 1970; Regal 1977; Leigh et al. 2004). Consequently, there is ...
A Guinea Pig`s History of Biology, by Jim Endersby
... Table S1. Causes of global extinction for 20 species whose declines were possibly linked to climate change (data from IUCN). * = species that are not globally extinct but are extinct in the wild. Note that in almost all cases, the links between extinction and climate change are highly speculative an ...
... Table S1. Causes of global extinction for 20 species whose declines were possibly linked to climate change (data from IUCN). * = species that are not globally extinct but are extinct in the wild. Note that in almost all cases, the links between extinction and climate change are highly speculative an ...
From the Editor - Environment Southland
... Leghold traps are steel-jawed traps that hold the captured animal by a limb until it can be killed by the trapper. These traps are often used by contractors for monitoring purposes before and after a control operation. ...
... Leghold traps are steel-jawed traps that hold the captured animal by a limb until it can be killed by the trapper. These traps are often used by contractors for monitoring purposes before and after a control operation. ...
Reliability of a Higher‐Taxon Approach to Richness, Rarity, and
... Most researchers investigating the conservation applications of the higher-taxon approach have focused on its ability to reflect species numbers; aspects of species composition and rarity have been explored rarely (Pik et al. 1999; Balmford et al. 2000; Bergamini et al. 2005). Nevertheless, much of ...
... Most researchers investigating the conservation applications of the higher-taxon approach have focused on its ability to reflect species numbers; aspects of species composition and rarity have been explored rarely (Pik et al. 1999; Balmford et al. 2000; Bergamini et al. 2005). Nevertheless, much of ...
Biodiversity and Habitat
... be a cause of biodiversity loss in other wildlife populations, forest resources and even water resources. “Overexploitation in the physical sense of reduced productivity may result from not one, but two social conditions: common property competitive exploitation on the one hand, and private-property ...
... be a cause of biodiversity loss in other wildlife populations, forest resources and even water resources. “Overexploitation in the physical sense of reduced productivity may result from not one, but two social conditions: common property competitive exploitation on the one hand, and private-property ...
Habitat Loss, Degradation, and Fragmentation
... Note: Habitat shredding is a specific type of fragmentation that leaves long, linear pieces or “shreds”. These are often found along riparian areas, and can have small branches (also often from streams that empty into them) of intact habitat attached to them called “tentacles”. Shreds can offer more ...
... Note: Habitat shredding is a specific type of fragmentation that leaves long, linear pieces or “shreds”. These are often found along riparian areas, and can have small branches (also often from streams that empty into them) of intact habitat attached to them called “tentacles”. Shreds can offer more ...
Behavioral Resource Partitioning among Rana Species in
... competition with closely related species. Through decreasing competition in this way, a greater number of closely related species might live in proximity to each other, allowing for greater biodiversity and species richness of a given ecosystem (Durrett and Levin, 1998). MethodsTo examine spatial an ...
... competition with closely related species. Through decreasing competition in this way, a greater number of closely related species might live in proximity to each other, allowing for greater biodiversity and species richness of a given ecosystem (Durrett and Levin, 1998). MethodsTo examine spatial an ...
Ontogenetic habitat use in labrid fishes: an ecomorphological
... primarily used for lift-based thrust, the latter producing faster swimming speeds for a given size (Vogel 1994, Wainwright et al. 2002, Walker & Westneat 2002). A similar functional continuum in pectoral fin morphology may be expected also to exist throughout ontogeny, particularly in those species ...
... primarily used for lift-based thrust, the latter producing faster swimming speeds for a given size (Vogel 1994, Wainwright et al. 2002, Walker & Westneat 2002). A similar functional continuum in pectoral fin morphology may be expected also to exist throughout ontogeny, particularly in those species ...
Modern lessons from ancient food webs
... and small. To that end, ecologists have adopted new tools designed to investigate ecological networks and help us uncover and understand past extinctions and their community-level consequences in the hopes of predicting those in the future. To do so, we compare reconstructions of past ecological net ...
... and small. To that end, ecologists have adopted new tools designed to investigate ecological networks and help us uncover and understand past extinctions and their community-level consequences in the hopes of predicting those in the future. To do so, we compare reconstructions of past ecological net ...
Info Harapan Rainforest - engl
... remain. Logged over areas such as Harapan Rainforest are not primary forests any more. However, it is amazing, how much wildlife can still hang on in the smaller trees and undergrowth, and in the rivers that crisscross the rainforest. As a habitat it still has enormous value, and with tender care ca ...
... remain. Logged over areas such as Harapan Rainforest are not primary forests any more. However, it is amazing, how much wildlife can still hang on in the smaller trees and undergrowth, and in the rivers that crisscross the rainforest. As a habitat it still has enormous value, and with tender care ca ...
Why behavioural responses may not reflect the
... show the greatest avoidance of disturbance are also the most vulnerable can be turned on its head. The relationship between disturbance and the relative number of animals across sites is shown for two dierent levels of availability of alternative habitat and ®tness costs of disturbance (i.e. the de ...
... show the greatest avoidance of disturbance are also the most vulnerable can be turned on its head. The relationship between disturbance and the relative number of animals across sites is shown for two dierent levels of availability of alternative habitat and ®tness costs of disturbance (i.e. the de ...
Urbanization, Biodiversity, and Conservation
... mong the many human activities that cause habitat loss (Czech et al. 2000), urban development produces some of the greatest local extinction rates and frequently eliminates the large majority of native species (Vale and Vale 1976, Luniak 1994, Kowarik 1995, Marzluff 2001). Also, urbanization is ofte ...
... mong the many human activities that cause habitat loss (Czech et al. 2000), urban development produces some of the greatest local extinction rates and frequently eliminates the large majority of native species (Vale and Vale 1976, Luniak 1994, Kowarik 1995, Marzluff 2001). Also, urbanization is ofte ...
CD accompanying Saltwater Wetlands Rehabilitation Manual
... are generally associated with mud. Once established, mangroves trap more muddy sediments transported by tidal water. Some degree of protection from wave action is necessary for successful mangrove establishment. Hence, mangroves are prevalent in bays, lagoons, estuaries and shores behind barrier isl ...
... are generally associated with mud. Once established, mangroves trap more muddy sediments transported by tidal water. Some degree of protection from wave action is necessary for successful mangrove establishment. Hence, mangroves are prevalent in bays, lagoons, estuaries and shores behind barrier isl ...
Today`s topics Why insects become pests? The aims of IPM
... Why insects become pests? • Some previously harmless insects become pests after their accidental (or international) introduction to areas outside their native range, where they escape from the controlling influence of their natural enemies. • An insect may be harmless until it becomes a vector of a ...
... Why insects become pests? • Some previously harmless insects become pests after their accidental (or international) introduction to areas outside their native range, where they escape from the controlling influence of their natural enemies. • An insect may be harmless until it becomes a vector of a ...
An ecosystem engineer, the beaver, increases species richness at
... Johnston et al. 1995). Beaver foraging has been shown to have significant effects on forest succession around active ponds by decreasing densities of preferred food species (Barnes and Dibble 1986; Johnston and Naiman 1990b; Donkor and Fryxell 2000). However, surprisingly little has been published o ...
... Johnston et al. 1995). Beaver foraging has been shown to have significant effects on forest succession around active ponds by decreasing densities of preferred food species (Barnes and Dibble 1986; Johnston and Naiman 1990b; Donkor and Fryxell 2000). However, surprisingly little has been published o ...
Red swamp crayfish Scientific name: Procambarus clarkii
... produce 100‐ 500 eggs. In places with a long flooding period (not Alaska), there may be at least 2 reproductive periods (Global Invasive Species Database 2011). ...
... produce 100‐ 500 eggs. In places with a long flooding period (not Alaska), there may be at least 2 reproductive periods (Global Invasive Species Database 2011). ...
Heterohyrax brucei – Yellow
... An association with H. brucei has been found the survival success of young P. capensis, as often browse in trees and consequently act as warning both species of impending danger Mundy 2002). ...
... An association with H. brucei has been found the survival success of young P. capensis, as often browse in trees and consequently act as warning both species of impending danger Mundy 2002). ...
Richness and species composition of arboreal arthropods affected
... be contingent upon species traits, species turnover, and food web complexity. Empirical support for the essential prediction of several models (Leibold 1996; Kondoh 2001), an interactive effect of resources and predation on diversity, has been mixed: while top-down and bottom-up effects are often stro ...
... be contingent upon species traits, species turnover, and food web complexity. Empirical support for the essential prediction of several models (Leibold 1996; Kondoh 2001), an interactive effect of resources and predation on diversity, has been mixed: while top-down and bottom-up effects are often stro ...
NOBANIS - Invasive Alien Species Fact Sheet Oncorhynchus mykiss
... IUCN list of Threatened Species: www.iucnredlist.org/search/details.php?species=15316 Jensen F. and Rasmussen, G. 1988. Regnbueørred (rainbow trout). Natur og Museum 27(4) pp 31. Jonsson, N, Jonsson, B., Hansen, L.P. and Aass, P. 1993a. Coastal movement and growth of domesticated rainbow trout (Onco ...
... IUCN list of Threatened Species: www.iucnredlist.org/search/details.php?species=15316 Jensen F. and Rasmussen, G. 1988. Regnbueørred (rainbow trout). Natur og Museum 27(4) pp 31. Jonsson, N, Jonsson, B., Hansen, L.P. and Aass, P. 1993a. Coastal movement and growth of domesticated rainbow trout (Onco ...
Monographs of the Western North American Naturalist | Western
... a role in making them more susceptible to the introduction of new species—whether competitors, predators, or pathogens (Blondel 2000). These factors amplify the effects of anthropogenic stressors like habitat loss, invasive species, and climate change; and these effects in turn have necessitated the ...
... a role in making them more susceptible to the introduction of new species—whether competitors, predators, or pathogens (Blondel 2000). These factors amplify the effects of anthropogenic stressors like habitat loss, invasive species, and climate change; and these effects in turn have necessitated the ...
Ecological Equivalence: A Realistic Assumption for Niche Theory as
... their coexistence equilibrium despite contrasting intrinsic (heritable) rates. The reality that species differ in their life history traits therefore underpins the assumption of ecological equivalence, which then permits fitting of intrinsically neutral models with vital rates set equal to the reali ...
... their coexistence equilibrium despite contrasting intrinsic (heritable) rates. The reality that species differ in their life history traits therefore underpins the assumption of ecological equivalence, which then permits fitting of intrinsically neutral models with vital rates set equal to the reali ...
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.