habitat connectivity for carnivores in mediterranean landscapes
... except weasels, polecats and wildcats that appeared to avoid passages. In general, carnivores preferred larger passages with vegetation close to the entrances, favorable habitat in the vicinity, and low human disturbance. This study also showed that the likelihood of stone marten occupancy decreased ...
... except weasels, polecats and wildcats that appeared to avoid passages. In general, carnivores preferred larger passages with vegetation close to the entrances, favorable habitat in the vicinity, and low human disturbance. This study also showed that the likelihood of stone marten occupancy decreased ...
Common Name: ETOWAH CRAYFISH Scientific Name: Cambarus
... on either side of the tip. The claws of this species may get quite large compared to the body size and there is a gap between the fingers of the claws when the fingers are closed. This Etowah crayfish reaches a maximum total body length of over 75 mm (3 inches). Similar Species: Upstream of Allatoon ...
... on either side of the tip. The claws of this species may get quite large compared to the body size and there is a gap between the fingers of the claws when the fingers are closed. This Etowah crayfish reaches a maximum total body length of over 75 mm (3 inches). Similar Species: Upstream of Allatoon ...
Caulerpa racemosa var. cylindracea
... Argyrou M, Demetropoulous M, Hadjichristophorou M (1999) The impact of Caulerpa racemosa on the macrobenthic communities in the coastal waters of Cyprus. Proceedings of the workshop on invasive Caulerpa species in the Mediterranean, Heraklion, Crete, Greece. MAP technical report series 125:139-158 C ...
... Argyrou M, Demetropoulous M, Hadjichristophorou M (1999) The impact of Caulerpa racemosa on the macrobenthic communities in the coastal waters of Cyprus. Proceedings of the workshop on invasive Caulerpa species in the Mediterranean, Heraklion, Crete, Greece. MAP technical report series 125:139-158 C ...
IMPACT: Toward a framework for understanding the
... Although ecologists commonly talk about the impacts of nonindigenous species, little formal attention has been given to defining what we mean by impact, or connecting ecological theory with particular measures of impact. The resulting lack of generalizations regarding invasion impacts is more than a ...
... Although ecologists commonly talk about the impacts of nonindigenous species, little formal attention has been given to defining what we mean by impact, or connecting ecological theory with particular measures of impact. The resulting lack of generalizations regarding invasion impacts is more than a ...
Developing Biodiversity Indicators for Los Angeles County
... The Singapore Biodiversity Index, also known as City Biodiversity Index, is currently the only biodiversity index specifically designed for cities. It has three components: the native biodiversity in the city, the ecosystem services provided to the city by biodiversity, and the management of biod ...
... The Singapore Biodiversity Index, also known as City Biodiversity Index, is currently the only biodiversity index specifically designed for cities. It has three components: the native biodiversity in the city, the ecosystem services provided to the city by biodiversity, and the management of biod ...
Patterns of Plant Diversity in Georgia and Texas Salt Marshes
... storms (Eleuterius and Eleuterius 1979; Stout 1984; Wang 1997). The unpredictable flooding that results can cause extended periods of waterlogged or exposed conditions. Although Gulf Coast brackish marshes have been extensively studied by Gough and Grace (Gough et al. 1994; Gough and Grace 1997, 199 ...
... storms (Eleuterius and Eleuterius 1979; Stout 1984; Wang 1997). The unpredictable flooding that results can cause extended periods of waterlogged or exposed conditions. Although Gulf Coast brackish marshes have been extensively studied by Gough and Grace (Gough et al. 1994; Gough and Grace 1997, 199 ...
Project: Big Shark, Big Loss, Big Impact: Sharks are Apex Predators
... After 45 seconds, have your students rejoin you (living and dead). Any fish that does not have a plankton card in its hands has died of starvation. If both sharks died of starvation, replace them with one new shark (student from the fish cemetery) because the shark moved into the area because there ...
... After 45 seconds, have your students rejoin you (living and dead). Any fish that does not have a plankton card in its hands has died of starvation. If both sharks died of starvation, replace them with one new shark (student from the fish cemetery) because the shark moved into the area because there ...
Geologic 2. NSW karst environments
... This material may be reproduced in whole or in part, provided the meaning is unchanged and the source is acknowledged. ISBN 978 1 74122 776 5 DECC 2008/141 May 2008 Printed on environmentally sustainable paper ...
... This material may be reproduced in whole or in part, provided the meaning is unchanged and the source is acknowledged. ISBN 978 1 74122 776 5 DECC 2008/141 May 2008 Printed on environmentally sustainable paper ...
Experimental evidence that the introduced fire ant, Solenopsis
... factors, such as superior competitive abilities, resource pre-emption, release from natural enemies or anthropogenic disturbance, may permit an invasive species to become dominant. However, the success of many invasive species is believed to result primarily from their superior competitive abilities ...
... factors, such as superior competitive abilities, resource pre-emption, release from natural enemies or anthropogenic disturbance, may permit an invasive species to become dominant. However, the success of many invasive species is believed to result primarily from their superior competitive abilities ...
Invasiveness in plant communities with feedbacks
... resident species; (2) intra- and interspecific frequency dependent feedback relationships of introduced and native species in the target community; (3) competition for resources; (4) propagule number and spatial distribution; and (5) the spatially explicit nature of ecological interactions. This new ...
... resident species; (2) intra- and interspecific frequency dependent feedback relationships of introduced and native species in the target community; (3) competition for resources; (4) propagule number and spatial distribution; and (5) the spatially explicit nature of ecological interactions. This new ...
070108F_FinalReport_Project Chicamocha II
... The Natural Bird Reserve “Cucarachero del Chicamocha” is located in Zapatoca, at the East of the Andes of Colombia in the left side of the Sogamoso River (Fig 1.2). Zapatoca is located in the centre of Santander Department. It is situated to 60 km from Bucaramanga (the capital of Santander Departmen ...
... The Natural Bird Reserve “Cucarachero del Chicamocha” is located in Zapatoca, at the East of the Andes of Colombia in the left side of the Sogamoso River (Fig 1.2). Zapatoca is located in the centre of Santander Department. It is situated to 60 km from Bucaramanga (the capital of Santander Departmen ...
Cervid Ecological Framework
... Cervid is a term used to describe members of the deer family. Ontario has four wild cervid species: moose, white-tailed deer, woodland caribou and American elk. Cervids are a highly valued and unique species group of Ontario's wildlife heritage. They are considered by many as symbols of wilderness a ...
... Cervid is a term used to describe members of the deer family. Ontario has four wild cervid species: moose, white-tailed deer, woodland caribou and American elk. Cervids are a highly valued and unique species group of Ontario's wildlife heritage. They are considered by many as symbols of wilderness a ...
DODSON, STANLEY Predicting crustacean zooplankton species
... crustacean zooplankton of 13 North American lakes. Thus, the zooplankton z-values of the current study are relatively low. A low z-value is not particularly meaningful per se. There is no single mechanism that causes low z-values. However, low z-values are consistent with high immigration rates, low ...
... crustacean zooplankton of 13 North American lakes. Thus, the zooplankton z-values of the current study are relatively low. A low z-value is not particularly meaningful per se. There is no single mechanism that causes low z-values. However, low z-values are consistent with high immigration rates, low ...
Réserve écologique de la Tourbière-de-Shannon
... Subsequently, the glacial front gradually retreated to the north, making southern Québec ice-free. The weight of all that ice on the continental plate had led to the continent sinking, and made it possible for the salt water of the Atlantic Ocean to flow into the St. Lawrence lowlands nearly 12,500 ...
... Subsequently, the glacial front gradually retreated to the north, making southern Québec ice-free. The weight of all that ice on the continental plate had led to the continent sinking, and made it possible for the salt water of the Atlantic Ocean to flow into the St. Lawrence lowlands nearly 12,500 ...
Ecosystems at Risk
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
The biology and ecology of narrow endemic and
... In the second phase, the objective was to obtain a balanced sample of families across the phylogeny of the Angiosperms (Soltis et al. 2000), to have one pair of species per genus, and one, or at most two, genera per family. Three criteria were employed: (1) a much smaller range size of endemic speci ...
... In the second phase, the objective was to obtain a balanced sample of families across the phylogeny of the Angiosperms (Soltis et al. 2000), to have one pair of species per genus, and one, or at most two, genera per family. Three criteria were employed: (1) a much smaller range size of endemic speci ...
Large Species Shifts Triggered by Small Forces
... that had not yet reached a point attractor or if the system had become cyclic, the number of alternative attractors was counted by visual inspection of the runs. The results show that from a given species pool several alternative communities can usually be assembled (fig. 2). These alternative commu ...
... that had not yet reached a point attractor or if the system had become cyclic, the number of alternative attractors was counted by visual inspection of the runs. The results show that from a given species pool several alternative communities can usually be assembled (fig. 2). These alternative commu ...
Does functional redundancy exist?
... hypothesis of functional redundancy. Not all experiments, however, have been able to reject this null hypothesis (reviewed by Loreau et al. 2002), and rejection of the null hypothesis does not necessarily imply that functional redundancy is not present among some of the species, e.g. within function ...
... hypothesis of functional redundancy. Not all experiments, however, have been able to reject this null hypothesis (reviewed by Loreau et al. 2002), and rejection of the null hypothesis does not necessarily imply that functional redundancy is not present among some of the species, e.g. within function ...
Geological and Ecological Settings of Mount St. Helens
... soils, lakes, streams, animal communities, and vegetation patterns. This pattern is especially true at Mount St. Helens, which has erupted about 20 times in the past 4000 years (Table 2.1 on page 16). Vestiges of both the preeruption ecological systems and recent eruptive activity can strongly influe ...
... soils, lakes, streams, animal communities, and vegetation patterns. This pattern is especially true at Mount St. Helens, which has erupted about 20 times in the past 4000 years (Table 2.1 on page 16). Vestiges of both the preeruption ecological systems and recent eruptive activity can strongly influe ...
Ecosystems at Risk
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
... An ecosystem is defined as a biological community of interacting organisms and their physical environment. ...
May - Chicago Herpetological Society
... Our roads present a gray–dark coloration; their exposure to the intense sun allows them to become excellent surfaces for snakes that are looking for a warm spot. But this has a negative effect on snake populations putting them in risk of being hit by cars more frequently as documented by Trombulak a ...
... Our roads present a gray–dark coloration; their exposure to the intense sun allows them to become excellent surfaces for snakes that are looking for a warm spot. But this has a negative effect on snake populations putting them in risk of being hit by cars more frequently as documented by Trombulak a ...
REPTILE RAP NL 8 Dec 2007 final
... Photographs were sent to Bombay Natural History Society for identification. The specimen has been added to the collection at the Bombay Natural History Society (B.N.H.S. 3354 and 3355). In the rainy season of 2006, on July 30 and 31, we found another two live Elliot’s Shield Tail Snakes. We studied ...
... Photographs were sent to Bombay Natural History Society for identification. The specimen has been added to the collection at the Bombay Natural History Society (B.N.H.S. 3354 and 3355). In the rainy season of 2006, on July 30 and 31, we found another two live Elliot’s Shield Tail Snakes. We studied ...
An Introduction to Ecology and the Biosphere
... was the fungus suddenly thriving in the rain forest? Cloudier days and warmer nights associated with global warming appear to have created an environment ideal for its success. As of 2009, the species that Yeager found was surviving as a single known population of fewer than 100 individuals. What en ...
... was the fungus suddenly thriving in the rain forest? Cloudier days and warmer nights associated with global warming appear to have created an environment ideal for its success. As of 2009, the species that Yeager found was surviving as a single known population of fewer than 100 individuals. What en ...
Chapter 41
... characteristics to be more divergent in sympatric populations (geographically overlapping) of two species than in allopatric (geographically separate) populations of the same two species An example is variation in beak size between populations of two species of Galápagos finches ...
... characteristics to be more divergent in sympatric populations (geographically overlapping) of two species than in allopatric (geographically separate) populations of the same two species An example is variation in beak size between populations of two species of Galápagos finches ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.