8/19/2013 1 Topic 21: Communities What is a community? What are some examples? What are some measures of community structure? What forces shape community structure? What is a community? The group of all species living at a ________________ and potentially _________________ with one another Defined by its _______________ features Includes all species, including plants and animals www.stoys.com Includes more than can be studied Considers processes and patterns above the __________ __________ What is a community? ____________________ The species that are studied A subset of a community Often restricted in terms of: ___________ of species ___________ of species Gives a partial picture of what is going on Our focus here will be community-level processes with herp examples Consider the herps that live in a given locality Haekel, Batrachia What are some examples of a herp species assemblage? Area just east of Tucson, Aizona A diverse herp community Species (partial list) Urosaurus ornatus Uta stansburiana Sceloporus clarkii Sceloporus magister Sceloporus undulatus Cophosaurus texanus Phrynosoma solare Aspidoscelis sonorense Elgaria kingi? Crotalus atrox Crotalus molossus Pituophis catenifer Masticophis bilineatus Photos PJB Phrynosomatinae Serpentes
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8/19/2013
1
Topic 21: Communities
� What is a community?
� What are some examples?
� What are some measures of community structure?
� What forces shape community structure?
What is a community?
� The group of all species living at a ________________ and potentially _________________ with one another
� Defined by its _______________ features
� Includes all species, including plants and animals
www.stoys.com
� Includes more
than can be
studied
� Considers
processes and patterns above
the __________
__________
What is a community?
� ____________________
� The species that are studied
� A subset of a community
� Often restricted in terms of:
� ___________ of species
� ___________ of species
� Gives a partial picture of
what is going on
� Our focus here will be community-level processes with herp examples
� Consider the herps that live in a given locality
Haekel, Batrachia
What are some examples of
a herp species assemblage?
� Area just east of Tucson, Aizona� A diverse herp community
� Species (partial list)� Urosaurus ornatus
� Uta stansburiana
� Sceloporus clarkii
� Sceloporus magister
� Sceloporus undulatus
� Cophosaurus texanus
� Phrynosoma solare
� Aspidoscelis sonorense
� Elgaria kingi?
� Crotalus atrox
� Crotalus molossus
� Pituophis catenifer
� Masticophis bilineatus
Photos PJB
Phrynosomatinae
Serpentes
8/19/2013
2
� Yuma, SW Arizona
� Hotter, drier, lower than
Tucson
� Species (partial list)
� Sceloporus magister
� Sceloporus undulatus
� Callisaurus draconoides
� Uma notata
� Phrynosoma mcallii
� Phrynosoma platyrhinos
� Dipsosaurus dorsalis
� Gambelia wislizeni
� Coleonyx variegatus
� Crotalus atrox
� Crotalus cerastes
� Chionactis occipitalis
� Masticophis flagellumPhotos PJB
What are some examples of
a herp species assemblage?
Phrynosomatinae
Serpentes
� Osa Peninsula, Costa Rica
� Anolis polylepis
� Anolis capito
� Basiliscus basiliscus
� Ctenosaura similis
� Coniophanes fissidens
� Ameiva quadrilineata
� Sphenomorphus cherriei
� Immantodes inornatus
� Bothriechis schlageli
� Leptodactylus pentadactylus
� Eleutherodactylus spp.
� Agalychnis callidryas
� Phrynohyas venulosa
� Hyla rosenbergi
Photos: KP Bergmann; M Fogden; K Warkentin
Anura
Squamata
What are some examples of
a herp species assemblage?
� Communities can differ between localities in a region
� Different species ________________________________