与 «INDICATOR SPECIES»相关的英语书籍
在以下的参考文献中发现
indicator species的用法。与
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1
Conservation by Proxy:
Indicator, Umbrella, Keystone, ...
It is the first book to review and bring together literature on more than fifteen types of surrogate species, enabling us to assess their role in conservation and offering guidelines on how they can be used most effectively.
2
Indicator species of forested plant associations on national ...
This plant identification guide is intended to be used to identify indicator species
for plant associations in northwestern Washington. Plant associations are
described for this area by Henderson et al. (1989, 1992). Forest plant
associations are ...
Robin D. Lesher, Jan A. Henderson, United States. Forest Service. Pacific Northwest Region,
1992
3
Indicator Plants of Coastal British Columbia
Indicator Species Groups Regardless of life-form and geographic distribution,
some species have the same or very similar indicator values. These species can
be combined into an indicator species group (ISG) (Ellenberg 1950: ...
A. Ceska, A. M. Scagel,
1989
4
Conserving Forest Biodiversity: A Comprehensive Multiscaled ...
How— ever, difficulties will arise if attempts are made to ac— tively implement
biodiversity surrogate schemes such as the indicator species and focal species
approaches on the ground. The uncritical application of such approaches could ...
David B. Lindenmayer, Jerry F. Franklin,
2013
5
Principal
indicator species of forested plant associations ...
The purpose of this indicator species guide is to provide handy reference for the
most diagnostic species of the forested plant associations found in the Blue and
Wallowa Mountains. The user will be able to key to the proper plant associations
...
Charles G. Johnson, United States. Forest Service. Pacific Northwest Region,
1988
6
Southern Ocean Ecology: The BIOMASS Perspective
The BIOMASS Perspective Sayed Zakaria El-Sayed. Table 7. January 1985:
frequencies of occurence of indicator species distinguishing cluster groups
defined in Fig. 4b Species in each sub-table are ranked according to information
statistic.
Sayed Zakaria El-Sayed,
1994
7
Ecosystems: Balancing Science With Management
The use of indicator species to assess the condition of an ecosystem can be
useful in answering questions about perturbations and the effects of
management practices, especially when time and money are limited. However,
while the ...
8
Coastal Zone Management Handbook
3.43 INDICATOR SPECIES The best general indicator of ecosystem quality may
be the biota itself. It is often assumed that any significant reduction in the
abundance or diversity of species is in itself prima facie an adverse impact. Also,
any ...
9
Environmental Science: Working with the Earth
Indicator Species: Biological Smoke Alarms Some species can alert us to harmful
changes taking place in biological communities. Species that serve as early
warnings of damage to a community or an ecosystem are called indicator species
.
Species that provide early warnings of damage to a community or an ecosystem
are called indicator species. For example, the presence or absence of trout
species is an indicator of water quality, because trout need clean water with high
...
G. Miller, Scott Spoolman,
2010
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indicator species在以下新条目的上下文中是如何使用的。
Tiny hummingbirds banded in P.E.I. project - Prince Edward Island …
"Hummingbirds are indicator species of what's happening in the environment because they have nectar for their carbohydrates and protein, the ... «CBC.ca, 七月 15»
Oil and grouse - Boulder Weekly
As both an umbrella species and indicator species, the sage-grouse represents far more than itself. The bird is entirely dependent on vast, ... «Boulder Weekly, 七月 15»
Locally educated marine scientist growing jellyfish for sale
Jellyfish can be an indicator species, he said. They are opportunistic and evolve. “They take what's happening and adapt to it,” he said. «Jamestown Press, 七月 15»
Endangered mussels given a helping hand
“They may not be cute and cuddly but freshwater pearl mussel is an important indicator species - if we get conditions right for them, it will have positive knock on ... «The Northern Echo, 七月 15»
The search for salamanders
The co-operative further states salamanders have been nominated as an ecosystem indicator species – their environmental sensitivities help ... «www.muskokaregion.com/, 七月 15»
West Nile threat returns to area
The birds found were not typical indicator species of the virus like crows and blue jays. “We are not surprised that West Nile Virus is once again ... «Beloit Daily News, 七月 15»
Environmental Impact Quotient: Weaknesses And A Better Solution
In addition, we also started incorporating some of the underlying data that goes into the EIQ (such as persistence, toxicity to indicator species, ... «Science 2.0, 七月 15»
First unified survey of Ganga dolphin soon
As part of the survey, there are also plans to carry out the head count of other indicator species such as turtles, gharials, otters and aquatic birds ... «Times of India, 七月 15»
How serious is Vermont's sewage problem?
E. coli, a commonly tested "indicator species" for enteric (intestinal) pathogens, is a bacteria that survives poorly in our relatively cool streams ... «BurlingtonFreePress.com, 七月 15»
Clarkson: Report's warning: As the trout go, so do we
An indicator species is one that provides insight into the health of a natural environment. Native trout in this country are one of these species. «Richmond Times-Dispatch, 七月 15»