Distribution of plants is mainly controlled by climatic factors. A niche is a very narrow range where a species fits within a habitat. Zoogeography, the branch of the science of biogeography q. In addition to mapping the present distribution of species, zoogeographers formulate theories to explain the distribution, based on information about geography.
Phytogeography, climate, vegetation and botanical zones of india. Floristic plant geography is concerned with narrow timescales, narrow to broad. The last mile was destitute of vegetation except one plant of the syginesia tribe, in growth much like a yucca. Tips and techniques for better pho tography photography is a science, because there are basic principles of physics that govern success photography is art because its beauty is subjective photography. Phytogeography is the branch of biogeography that studies the distribution of plants. Wulff 1943 states that phytogeography is the study of distribution of plant species in their habitats and elucidation of origin and history of development of floras. Yet, on closer study, it is organized into well defined unities which operate at specific scales. Phytogeography is defined by good 1964 as that branch of botany that deals with the spatial relationships of plants both in the present and the past. Plant ecology and phytogeography saras publication.
Zoogeography is the branch of biogeography dealing with distributional patterns of animals. Phytogeography definition is the biogeography of plants. Benny bytebier bews herbarium, school of biological and conservation sciences. If you liked it then please share it or if you want to ask anything then please hit comment button. Temperature, altitude, precipitation, atm moisture, light intensity and duration. When considering the overall range of the eastern flora of north america, delaware could be referred to as a floristic crossroads between the north and south. Increasing isolation decreases immigration rate increasing size decreases extinction rate. Convert ppt to pdf in seconds using adobe acrobat online services. The subject of zoogeography or biogeography attempts to give an answer to the current distribution of animal species, studying their diffusion and displacements of the past today, genetics also helps in the study of zoogeography. On the basis of floristic composition, the naturalness of the flora and the local climate, the indian region is divided in several phytogeographical provinces hooker. Geographical information systems gis are computerbased systems that modify users to gather, store, and process, analyze and to present spatial knowledge.
Biogeographical division of southern africa springerlink. Synonyms for phytogeography include geobotany, botany, anatomy, cytology, ecology, genetics, horticulture, morphology, pathology and physiology. Each field, however, looks at phytogeography the past and present distribution of plants and zoogeography. Branches of zoogeography biogeography ecology free.
Biogeography attempts to explain why species and higher taxa are distributed as they are, and why the diversity and taxonomic composition of the biota vary from one region to another. Giovanni giuseppe bellani, in felines of the world, 2020. Population ecology although several species may share a habitat they each have their own niche. We will not spam your account enter your email address. The term flora is used to denote plants of a particular region or period. Mountaintops as islands the speciesarea relationship larger islands contain more species power law s. This phytogeographical region also has a clear east bl 0. Readings general botany course outline and schedule. Pdf phytogeography and fossil history of ailanthus. Emeritus bruce bohm with mauna kea silversword inflorescence. Chapter 20 principles of biogeography introduction vegetation appears to the casual observer as a rather haphazard and random element of the earths surface. Browse more in easy biology class lecture notes biology ppt video tutorials biology mcq question bank difference between practical aids mock tests mcq biology. When spatial data are used without considering the precise criteria.
The 5 types of natural vegetation in india and their. Relationships of phytogeography and diversity of tropical tree species with limestone topography in southern belize steven w. Geographic information system gis ppt and pdf report. Phytogeography is the study of distribution of plant species and elucidation of origin of flora. The study of the geographic distribution of plants. Phytogeography and fossil history of ailanthus simaroubaceae article pdf available in international journal of plant sciences 1654 july 2004 with 793 reads how we measure reads. Hindusthan centre of diversity and centre of origin of cultivated plants. Introduction to photography tips and techniques for better photography. The theory of island biogeography extinction balances immigration assumptions. The subcontinent of india lies in south asia, between pakistan, china and nepal. Phytogeography refers to the study of the natural geographic distribution of plants. No file size restrictions, no ad watermarks just a free online tool for creating pdfs from your ppt slides. Plant geography is a broad field that attempts to synthesize many.
Patterns of distribution are interpreted in terms of climatic and anthropogenic influence, but above all in terms of earlier continental configurations and migration routes. It provides associate degree electronic illustration of knowledge, known as spatial knowledge, concerning the earths natural and artificial options. Fine4 1department of biology, rhodes college, memphis, tn, 2section of evolution and ecology, university of california, davis, ca, 3department of fisheries and wildlife, oregon state. One of the first modern delimitations of biogeographic regions was created in 1858 by the english ornithologist philip l. Relationships of phytogeography and diversity of tropical. A phytogeographical region is defined as an area of uniform climatic conditions and having a distinctly recognisable type of vegetation. Quantifying phytogeographical regions of australia using. Converting powerpoint files to pdfs has never been so easy.
The world flora may be mapped in different ways depending on the botanical criteria used for defining mapping units. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. All you need to do is just click on the download link and get it. In the past, animals have been often considered in historical analyses, whereas ecological biogeography has focused more on plants, though of course today this distinction has completely disappeared.
Today, biogeography is broken into three main fields of study. The indian flora is more varied than that of any other country of equal area. Lecture 34 phytogeography phytogeography the study of. Chattarjee 1962, india can be divided into nine phytogeographical regions.
Leading lines areused to draw the viewers eyethrough a photograph. Confluence of floras from malaya, tibet, china, japan and europe. Phytogeography or botanical geography is the branch of biogeography that is concerned with. Powerpoint in pdf umwandeln kostenloses online tool. Adaptations and classification with ppt more lecture notes from easy biology class botany zoology biochemistry genetics molecular biology biotechnology human physiology plant physiology microbiology immunology embryology ecology evolution biophysics research meth. The northern part of our country is bounded by highest ranges of himalayas and is one of the important botanical regions of the world with climate and vegetation ranging from truly tropical near the low altitudes to temperate arctic types at the high altitudes. Particularly showy cape plants early attracted the interest of europeans and the first cape plants were already described and depicted before the. The virgin vegetation, which are purely indian are known as endemic or indigenous species but those which have come from outside india are termed as exotic plants. Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. There are 7 different rules of composition and here they are 2. Ecosystem ppt powerpoint presentation pdf download. To the north it is bordered by the worlds highest mountain chain, where foothill valleys cover the northernmost ofthe countrys 26 states. Phytogeography definition of phytogeography by merriam. While there is no clear demarcation between phytogeography and ecology, goods definition indicates a concern with the evolution of plant distribution in geological time as well as plant.
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