Body size divergence promotes post-zygotic reproductive isolation in centrarchids ppt
Body size divergence promotes post-zygotic reproductive isolation in centrarchids ppt
... during the development
of hybrid sunfishes (Perciformes, Teleosti). Differentiation, 9: 97–109.
Body size disparity and post-zygotic isolation 913
Body size divergence promotes post-zygotic
reproductive ... is that body size divergence modifies the rate at which
hybrid inviability evolves between independently evolving lineages.
We suggest there are two potential me...
FIELD STUDY OF ALLOPATRY, SYMPATRY, PARAPATRY, AND REPRODUCTIVE ISOLATION IN STEPPE BIRDS OF PATAGONIA pptx
... where
Eudromia elegans and Tinamotis ingoufi occur
near each other and where their habitat prefe-
rences, foraging habits (including food items),
and direct or indirect interactions (including
competition) ... include instances of alIopatry, partial sympatry, and
reproductive isolation. During a transect from the Atlantic coast westward to the foothills of the Andes in Chubut
Province, A...
Tài liệu Body Size: The Structure and Function of Aquatic Ecosystems pptx
... the increasing interest in
body size from the wider ecological community over the past 30 years, as well as
the technical challenge involved in exploring body- size data. Of course, the
fascination ... moment in time are likely to
result both from the sum of evolutionary forces (determining maximal size
obtainable) and time since disturbance (determining current body size) ....
ADOLESCENT AND YOUTH REPRODUCTIVE HEALTH IN BANGLADESH pptx
... reconfigured to attract adolescents seeking information, counseling, and
services.
8. Offering reproductive health information and services in non-clinical settings such as youth
clubs/centers ... dried in a hygienic fashion.
34
Ninety-nine percent of the girls in the urban slum study
associated menstruation with being unclean or impure.
35
The consequences of not maintaini...
Strong reproductive barriers in a narrow hybrid zone of West-Mediterranean green toads (Bufo viridis subgroup) with Plio-Pleistocene divergence pptx
... males
and females in a naturally reproductive state during the
breeding period in spring. Females were stimulated to
spawn by injection of 0.1 ml of a 0.9% NaCl-solution
containing 500-1000 IU ... [16], suggesting that reproductive
barriers are still low or inexistent.
The observed post-mating barriers (hybrid breakdown)
in Sicilian green toads certainly induce selection to act
agai...
GENETIC DIVERGENCE, REPRODUCTIVE ISOLATION, AND MARINE SPECIATION docx
... in
any given case).
Mechanisms of Reproductive Isolation
In general, reproductive barriers are classified into pre-zygotic and post-zygotic
categories (25). For marine species, post-zygotic isolation ... urchins.
In this clztss, a sperm protein called bindin attaches sperm to the vitelline coat
of eggs and promotes egg-sperm fusion (37, 44). Bindin is expressed only
sperm...
Blackwell Publishing Ltd. Seasonal range size in relation to reproductive strategies in brown bears Ursus arctos pot
... only increased slightly
(10%) from the mating to the post-mating season and
thus in the opposite direction of the change in range
size observed in oestrous individuals. Moreover, the
increase in ... range size of 2-year-olds (10%) was not
large enough to explain the increase (74–177%) in
range size from the mating to the post-mating season in
females with cubs. Although rang...
Tài liệu Adolescent and Youth Reproductive Health In Morocco doc
...
single greatest obstacle to addressing ARH in Morocco. It impedes investigating the issues in- depth to
gain a real understanding of the situation. It constrains educating youth to enable them to develop ... family planning is
concerned, could place reproductive health programs in a precarious position.
119
In addition, much of the
increase in reproductive health funding has...
Tài liệu A Journalist’s Guide TO SEXUAL AND REPRODUCTIVE HEALTH IN EASt AFRICA pptx
... partners.
• Injecting drug use (and sharing infected needles) is an
increasingly important factor in Kenya’s epidemic.
RWANDA
• HIV infection among adults is estimated to be 3.1 percent,
with infections ...
with an infected person.
— Receiving a blood transfusion that contains HIV-
infected blood or receiving a medical injection using
equipment that has not been properly cleaned.
— Be...
Tài liệu Sexual and reproductive health needs of adolescents perinatally infected with HIV in Uganda pptx
... programs lack institutional capacity and
adequately trained staff to develop, deliver and sustain meaningful interventions pertaining to the
sexuality of young people perinatally infected with ... increasingly provides opportunities to transmit relevant sexuality
information to perinatally HIV-infected adolescents.
In sum, wide programmatic gaps exist in addressing the sexual and re...