Past, Present and Past, Present and Future of Plant Future of Plant

DiversityDiversitySTC-GROUP 3

LAGUNA STATE POLYTECHNIC UNIVERSITY-SAN PABLO CITY CAMPUS,

PHILIPPINES

OBJECTIVESOBJECTIVESTo define Plant Ecology.

To determine the connection of plant reproduction,

biological interaction and distribution to plant ecology.

To differentiate the scene of the past, present and future

of plant diversity.

PLANT PLANT ECOLOGYECOLOGY

Plant Plant EcologyEcology

It is a sub-discipline of ecology which studies the distribution and abundance of plants, the

interactions among and between members of plant

species, and their interactions with their

environment.

includes the study of plants and their environment.

can include the study of entire ecosystems.

Plant Plant ReproductionReproductionPlant reproduction is the

production of new individuals or offspring in

plants, which can be accomplished by sexual

or asexual means.

Biological Biological InteractionsInteractions

In the natural world no organism exists in absolute

isolation.

It can involve individuals of the same species or

individuals of different species .

Biological Biological InteractionsInteractions

Competition

Facilitation

Herbivory

DistributionDistribution

Plant communities are broadly distributed into

biomes based on the structure of dominant

plant species.

DistributioDistributionn

Colonisation and local extinction

Abundance

PASTPAST

Time Era Period Epoch Plants & Microorga

nisms

10, 000 years ago

to present

CenozoicQuaterna

ryHolocene Decline of

some woody plants; rise of

herbaceous plants.

2 Pleistocene

Extinction of many

plant species.

5 Cenozoic Tertiary Pliocene Development of

grasslands; decline of forest.

25 Miocene Flowering plants

continue to

diversify.38 Oligocene Spread of

forests; flowering

plants.55 Eocene Gymnospe

rms & flowering

plants dominant.

65 Paleocene Many now-extinct woody

flowering plants.

144Mesozoic

Cretaceous

Rise of flowerin

g plants.

213 Jurassic Gymnosperms

common.

248 Triasssic

Gymnosperms domina

nt; ferns

common.

286Paleozoic

Permian Conifers diversify;

cycads appear.360 Carboniferous Forests of

ferns, club mosses,

horsetails, and gymnosperms;

mosses & liverworts.

408 Devonian Plants diversify &

become well-established; first forest;

gymnosperms appear;

bryophytes appear.

438 Silurian Vascular plants appear; algae dominant in

aquatic environments.

505 Ordovician Marine algae dominant.

570 Cambrian Algae; bacteria &

cyanobacteria; fungi.

Archaeamphora longicervia

Cooksonia

PRESENTPRESENT

As we study the plant ecology, people can focus on

topics like climate change and its effect on plants,

plant evolution, how plants disseminate themselves in

nature, symbiotic relationships between plant species, plant diseases, and

so forth.

FUTUREFUTURE

Genetic Engineering of Plants Holds

Great Promise

Crocodilian nepenthes

Plants at Planet Mars

MEMBERS:MEMBERS:MELODY DE LAS ALASMARY ROSE DELLOSA

ROSELYN MABILANGANJHON ALFRED SAGISI

MARIE DAISYLYN TIQUIS