搜索结果: 1-15 共查到“知识库 理学 A bird”相关记录16条 . 查询时间(0.07 秒)
OBIS-SEAMAP:The World Data Center for Marine Mammal, Sea Bird, and Sea Turtle Distributions
OBIS-SEAMAP The World Data Center Marine Mammal Sea Bird Sea Turtle Distributions
2015/7/3
The science needed to understand highly migratory marine mammal, sea bird, and sea turtle species is not adequately addressed by individual data collections developed for a single region or single tim...
The Conservation Value of Residential Landscapes for Native Bird Communities: Patterns, Processes, and Management Implications
giving-up densities Homeowners Associations residential gardens socio-ecology urban biodiversity urban birds
2014/12/18
Urbanization, as it transforms natural biotic systems into human-dominated landscapes, is recognized as one of the greatest threats to biodiversity throughout the world. Furthermore, urban dwellers ar...
介形类壳体的氧同位素组成已成为恢复湖区古气候 / 古环境的有效代用指标，而其氧同位素分馏及环境意义目前还缺乏研究 . 为评价青海湖介形类壳体氧同位素分馏及其环境意义，在青海湖进行系统的表层沉积物和水样的采集，测定表层沉积物中的意外湖花介（ Limnocythere inopinata Bird ）和相应水样的氧同位素组成 . 结果表明：意外湖花介壳体的氧同位素组成主要受控于水体的氧同位素组成，除温...
I try to give mathematical evidence to the following equivalence, which is based on ideas from Plato (Timaeus): reality emerges from a more primitive, non-geometrical, reality in the same way as the ...
Plants cause ecosystem nutrient depletion via the interruption of bird-derived spatial subsidies
depletion via bird-derived spatial subsidies
2015/11/13
Plant introductions and subsequent community shifts are known
to affect nutrient cycling, but most such studies have focused on
nutrient enrichment effects. The nature of plant-driven nutrient
depl...
Scale-free correlations in bird flocks
bird flocks environmental perturbations fish schools
2010/4/8
From bird flocks to fish schools, animal groups often seem to react to environmental perturbations as if of one mind. Most studies in collective animal behaviour have aimed to understand how a globall...
Nest Site Characteristics and Nest Densities of Ardieds (Night Heron: Nycticorax nycticorax, Grey Heron: Ardea cinerea, and Little Egret: Egretta garzetta) in the Nallıhan Bird Sanctuary (Sarıyar Reservoir, Ankara, Turkey)
Nest densities ardeid species Nallı han Bird Sanctuary
2010/3/25
In this study, the nesting site characteristics and nest densities of ardeids (grey heron: Ardea cinerea; night heron: Nycticorax nycticorax, and little egret: Egretta garzetta) were investigated in N...
Exogenous chemical substances in bird perception: a review
anting food navigation olfactory
2015/3/17
The perception of exogenous chemical substances, olfactory navigation and the use of the olfactory
sense by birds to search for food are reviewed. Many results suggest that the olfactory sense is on...
S31-2 Bird population explosions in agroecosystems — the quelea, Quelea quelea, case history
2007/12/12
A Bird's-Eye View of Density-Functional Theory
Density-functional theory Electronic-structure theory Electron correlation Many-body theory
2010/10/13
This paper is the outgrowth of lectures the author gave at the Physics Institute and the Chemistry Institute of the University of S˜ao Paulo at S˜ao Carlos, Brazil, and at the VIII’th Summer...
Observations on Some Behaviours of Krüper’s Nuthatch (Sitta krueperi), a Little-Known West Palaearctic Bird
Krüper's Nuthatch (Sitta krueperi) Behaviour Antalya
2010/3/29
Some intraspecific and interspecific behaviours in Krüper's Nuthatch (Sitta krueperi) populations were observed in Antalya province, southern Turkey. An account of their endemic distribution in Anatol...