Are We Putting Our Fish in Hot Water?
... Initial flooding above dams to create reservoirs can result in massive losses of terrestrial habitat; for example, India lost approximately 479,000 hectares of forest land to various river valley projects from 1950-1975 (Goldsmith and Hildyard, 1984). Stagnation and low flow rates in reservoirs can ...
... Initial flooding above dams to create reservoirs can result in massive losses of terrestrial habitat; for example, India lost approximately 479,000 hectares of forest land to various river valley projects from 1950-1975 (Goldsmith and Hildyard, 1984). Stagnation and low flow rates in reservoirs can ...
pdf reprint
... pose a unique challenge in creating and implementing a long-term plan to maintain a dynamic landscape. ...
... pose a unique challenge in creating and implementing a long-term plan to maintain a dynamic landscape. ...
section 4: environmental inventory and analysis
... aquifers is vital because they are sources, or potential sources, of quality drinking water. A high quality, medium flow aquifer is located in the general area of Lake Siog and surrounding wetlands. Currently this aquifer does not provide public water for the Town of Holland, as all water in town is ...
... aquifers is vital because they are sources, or potential sources, of quality drinking water. A high quality, medium flow aquifer is located in the general area of Lake Siog and surrounding wetlands. Currently this aquifer does not provide public water for the Town of Holland, as all water in town is ...
... Recent estimates of the magnitude of species’ range shifts, extinctions, and changes in ecosystem processes resulting from climatic change are alarming (Erasmus et al. 2002, Peterson et al. 2002, Midgley et al. 2003, Parmesan and Yohe 2003, Root et al. 2003a, Williams et al. 2003, Thomas et al. 2004 ...
Phase 1 Framework Glossary 0103121
... monitored to assess effects. Adaptations to those policies and practices are made periodically, on the basis of monitoring information to incorporate ‘lessons learned’.” ...
... monitored to assess effects. Adaptations to those policies and practices are made periodically, on the basis of monitoring information to incorporate ‘lessons learned’.” ...
Regime Shifts in the Anthropocene: drivers, risk
... may generate water stratification. As a consequence, nitrogen concentration declines and kelps become nitrogen limited1. In addition pollution discharges and sedimentation may play a synergetic role as stressors. The main external direct drivers that contribute to the shift include: ▪ Overfishing (r ...
... may generate water stratification. As a consequence, nitrogen concentration declines and kelps become nitrogen limited1. In addition pollution discharges and sedimentation may play a synergetic role as stressors. The main external direct drivers that contribute to the shift include: ▪ Overfishing (r ...
Chapter 4
... other side of the coin is that if redundancy really occurs, i.e. there are coexisting species that do not ...
... other side of the coin is that if redundancy really occurs, i.e. there are coexisting species that do not ...
Lepidopteran Communities in Two Forest Ecosystems During the
... Insects serve as prey for other animals, and are involved in decomposition and nutrient cycling, pollination, predation and parasitism of potential pest insects, and regulation of forest productivity (Mattson and Addy 1975, Schowalter and Crossley 1984, Probst and Crow 1991, Kremen 1994). Despite th ...
... Insects serve as prey for other animals, and are involved in decomposition and nutrient cycling, pollination, predation and parasitism of potential pest insects, and regulation of forest productivity (Mattson and Addy 1975, Schowalter and Crossley 1984, Probst and Crow 1991, Kremen 1994). Despite th ...
outstanding the plants sharply distinguished: is always - UvA-DARE
... they might be derived from terrestrials. ...
... they might be derived from terrestrials. ...
How do they get their food?
... • Ok, will select a patch based on food quality that gives good balance when it enters the patch. • But patch becomes depleted as it stays in the patch. • When should it leave??? ...
... • Ok, will select a patch based on food quality that gives good balance when it enters the patch. • But patch becomes depleted as it stays in the patch. • When should it leave??? ...
our Pygmy Bluetongue Lizard brochure
... Other lizard species, such as the ones pictured below, can be confused with Pygmy Bluetongues. ...
... Other lizard species, such as the ones pictured below, can be confused with Pygmy Bluetongues. ...
abiotic vs. biotic influences on habitat selection
... Abstract. Species are commonly segregated along gradients of microclimate and vegetation. I explore the question of whether segregation is the result of microhabitat partitioning (biotic effects) or choice of differing microclimates (abiotic effects). I explored this question for four ground-nesting ...
... Abstract. Species are commonly segregated along gradients of microclimate and vegetation. I explore the question of whether segregation is the result of microhabitat partitioning (biotic effects) or choice of differing microclimates (abiotic effects). I explored this question for four ground-nesting ...
SAIS botanical survey report
... troublesome weeds which require costly control. Where invasive aliens such as whiteweed (Austroeupatorium inulaefolium) and Mexican thorn (Prosopis juliflora) have already become well established, they may necessitate several decades and considerable manpower to eradicate, or ongoing lower level eff ...
... troublesome weeds which require costly control. Where invasive aliens such as whiteweed (Austroeupatorium inulaefolium) and Mexican thorn (Prosopis juliflora) have already become well established, they may necessitate several decades and considerable manpower to eradicate, or ongoing lower level eff ...
How do they get their food?
... • Ok, will select a patch based on food quality that gives good balance when it enters the patch. • But patch becomes depleted as it stays in the patch. • When should it leave??? ...
... • Ok, will select a patch based on food quality that gives good balance when it enters the patch. • But patch becomes depleted as it stays in the patch. • When should it leave??? ...
Persist or Produce: A Community Trade-Off Tuned by Species
... abstract: Understanding the effects of biodiversity on community persistence and productivity is key to managing both natural and production systems. Because rare species face greater danger of extinction, species evenness, a measure of how similar abundances are across species in a community, is se ...
... abstract: Understanding the effects of biodiversity on community persistence and productivity is key to managing both natural and production systems. Because rare species face greater danger of extinction, species evenness, a measure of how similar abundances are across species in a community, is se ...
Genetic Biodiversity Recommendations of the European Platform for
... restriction of access to or exploitation of the resource Connectedness: (n) characteristic of the distribution of habitats in a landscape, reflecting the ease with which organisms of a given taxon can disperse between habitat patches Connectivity: (n) degree to which disjunct populations function as ...
... restriction of access to or exploitation of the resource Connectedness: (n) characteristic of the distribution of habitats in a landscape, reflecting the ease with which organisms of a given taxon can disperse between habitat patches Connectivity: (n) degree to which disjunct populations function as ...
Overview of a passive tracking index for monitoring wild canids and
... (1998) for an excellent examination of potential problems with capture–recapture methods and Burnham et al. (1980) for a similar discussion on line transect methods). Carnivores pose particular difficulties for assessing population status, as they are characterized by: relatively sparse populations; ...
... (1998) for an excellent examination of potential problems with capture–recapture methods and Burnham et al. (1980) for a similar discussion on line transect methods). Carnivores pose particular difficulties for assessing population status, as they are characterized by: relatively sparse populations; ...
06_chapter 1
... living and non-living things in nature on a specific natural community, including the interaction of climate, soil, rivers and all forms of animals and plants. 21 Thus, in short, ecosystem can be defined as a system formed by the interaction of a community of organism with their environment. Ecosyst ...
... living and non-living things in nature on a specific natural community, including the interaction of climate, soil, rivers and all forms of animals and plants. 21 Thus, in short, ecosystem can be defined as a system formed by the interaction of a community of organism with their environment. Ecosyst ...
CHANGES IN PATTERNS OF TERRITORY AND HABITAT OVERLAP IN WOOD- by
... new species that differ from the common ancestor and other new species in acquired morphological, behavioural or physiological traits. These morphological traits are used to exploit distinct ecological niches that differ among species. The term adaptive radiation may correspond to diversification of ...
... new species that differ from the common ancestor and other new species in acquired morphological, behavioural or physiological traits. These morphological traits are used to exploit distinct ecological niches that differ among species. The term adaptive radiation may correspond to diversification of ...
114. Hines, D.E. and Pawlik, J.R. 2012
... rely instead on chemical defenses to deter predation (Pawlik et al.1987; O’Neal and Pawlik 2002). Some non-scleractinian zoantharians can incorporate inorganic material such as sand into their bodies, but these structures likely provide little protection against predation because similar structures ...
... rely instead on chemical defenses to deter predation (Pawlik et al.1987; O’Neal and Pawlik 2002). Some non-scleractinian zoantharians can incorporate inorganic material such as sand into their bodies, but these structures likely provide little protection against predation because similar structures ...
Food Webs, Models and Species Extinctions in a
... kompletterande forskning att kunna ge svar på. ...
... kompletterande forskning att kunna ge svar på. ...
Conclusions from the Workshop on
... consumption of turtles, or refusal to eat turtles, is often related to religion and ethnic culture. The intensity of exploitation of natural populations in source countries varies among countries and regions, depending on the quality and degree of enforcement of national legislation, status of turtl ...
... consumption of turtles, or refusal to eat turtles, is often related to religion and ethnic culture. The intensity of exploitation of natural populations in source countries varies among countries and regions, depending on the quality and degree of enforcement of national legislation, status of turtl ...
Managing conflicts arising from fisheries enhancements based on
... led to considerable conflicts between fisheries agencies and conservation authorities whom often have competing fisheries development and biodiversity agendas (Cowx et al., 2010). Examples of well-established non-native fisheries that threaten local species include smallmouth bass Micropterus dolomi ...
... led to considerable conflicts between fisheries agencies and conservation authorities whom often have competing fisheries development and biodiversity agendas (Cowx et al., 2010). Examples of well-established non-native fisheries that threaten local species include smallmouth bass Micropterus dolomi ...
Bird Island Biodiversity Action Plan
... observed to breed on the island, with another three species considered to possibly breed there. Of this total of 13 native breeding species, three are considered to be Rare at a state level - Kelp Gull, Pied Oystercatcher and Sooty Oystercatcher, and the fourth species, the Fairy Tern, is Endangered ...
... observed to breed on the island, with another three species considered to possibly breed there. Of this total of 13 native breeding species, three are considered to be Rare at a state level - Kelp Gull, Pied Oystercatcher and Sooty Oystercatcher, and the fourth species, the Fairy Tern, is Endangered ...
empirical rules and assembly theory
... unmodified, the drainage has been altered by human activity. There is a dam and reservoir in the headwaters of the main stem of the river (Pillsbury Reservoir). Much of the drainage has been heavily logged, resulting in large-scale erosion of the steep hillsides in the 1960s which in turn filled muc ...
... unmodified, the drainage has been altered by human activity. There is a dam and reservoir in the headwaters of the main stem of the river (Pillsbury Reservoir). Much of the drainage has been heavily logged, resulting in large-scale erosion of the steep hillsides in the 1960s which in turn filled muc ...
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.